US1496898A - Wood jointer - Google Patents

Description

June 10. 1924. 1,496,898

S. MADSEN WOOD JOINTER Filed Sept. 27. 19?.1 7 Sheets-Sheet 1 s. ApsEN W901) JOINTER Juhe 10 Filed Sept.' 27. 1921 7 Sheets-Sheet 2 June 10, 1924.

1,496,898 s. MADSEN WOOD JOINTER F iled Sept. 27. 1921 7 Shefis-Sheet 2! s. MADSEN WOOD JOINTER June 10 2 Filed Sept. 27. 1.921

7 Sheets-Sheet 4 S. MADSEN woob JOINTER 5. MADSEN WOODJOINTER June 10. 1924.

7 Sheets- Sheet 6 Filegi Sept. 27 1921 Patented June 10, 1924.

UNITED STATES v i y -1 SEEN MADSEN, OF CLINTON, IOWA.

WOOD JOINTER.

Application'filed September 27,- 1921. Serial No. 503,649.

To all whom it may camera:

Be it known that I, Snnn MAnsnN, a citizen of the United States, and resident of Clinton, in, the county of Clinton and State of Iowa, have invented a certain new and useful lVood J ointer, of which the following is a specification.

My invention relates to improvements in wood working machines, and specifically in K 7 IIIIPI'OVGd, mechamsm for driving saidifeed what is known as jointers. V

The object of my invention is toprovide a universal jo-inter of. comparatively simple', durable and inexpensive construction, so arranged that a large variety of work may be easily and quickly accomplished by the use ofa single machine.

A still further object is to provide ajointer having adjustable stock-guide members so arranged that an endless-feed mechanism may be adapted to operate between the guides in such a manner that the said feeding mechanism may be adapted to simultaneously carry two or more pieces of stock, bothof which may be operated on at the same time.

A further object is to provide a jointer having a, cutter head designed to operate in one direction with means for feeding stock to the cutter head, the said feeding means being adapted to feed the stock in either direction to. the said cutter head so that if the cutter headshould be operating on material in which the grain of the'material runs. in two directions, and is of such a nature that it'is being split out by the cutter head as it is being fed in one direction, the mechanism might be reversed and the material fed from the other direction to prevent the material from being chipped out.

A further object is to provide in a jointer having a feed device designed to teed a.

means for securing the stock in operative re-- lation with the feeding mechanism in such a manner that the feeding mechanism may be mechanically moved to a clamping position and so arranged that it may bemanually operated to a position of its movement to,

facilitate speed in adjustment of the said clamp.

. A furtherobjectlistoprovide in a jointer employing an endless feeding mechanism,

device.

A further object is to provide in a mecha nism for supporting and operatinga cutterhead such as is used-in connection with jointermachines and which is capable of a number of different adjustments and movements, improved means for mo'untingand securing the said cutter head in such a manner that a single locking ,device will rigidly lock the cutter against-all of its movements so' that an operator when adjusting the cutter head may be sure that all of the adjustments have been properly locked and secured in position b-ylocking a. single device.

These and other objects will be apparent to those skilled in-the art. My invention consists in the construction,

claims, and. illustrated inthe. accompanying drawings, 1n which;

Figure 1 is a side elevation of my-iInproved pointer.

Figure 2 is a plan view of the same with a portion of some of thefr'ame members broken away to more clearly show certain details, of construction.

Figure 3 is a vertical, longitudinal, sectional view through the machine.-

' Figure 4 is an end elevation of the left hand end of the machine as shown in Figure 1.' I Figure 5'is a vertical, transverse, sectional view taken on the line 5 5 of Figure 1. Figure 6 is a vertical, transverse, sectional view taken on the line 6-6 of Figure 1.

Figure 7 is a detail view showing the manner inwhich the stock-isted to one of the cutter devices, and the mannerin' which the supporting plates are applied thereto.

Figure 8' is a detail sectional view of one of the devices for mounting oue'set ot-the cutter head driving mechanism. a

Figure 9- is a detail sectional view showing the manner in which one of the cutter operating motors is mounted.

Figure 10 is a horizontal sectional view showing the manner in which the supporting mechanism for the side cutter is supported.

Figure 11 is a vertical detail sectional View of the same.

Figure 12 is a detail sectional view of the screw operated control device for the clamping mechanism.

Figure 13 is a detail end and segmental view of Figure 12.

The numeral 10 indicates the base of my improved jointer which is substantially rect-angular in shape, and provided with inwardly extending flanges 11 at its top edge.

This base 10 is preferably formed of a single casting and of a length substantially equal to the entire length of the machine.

Mounted on top of the base 10 at each end, I have provided auxiliary base members 12 and 13. These base members are substantially alike. The base 12 is provided with end members 14 and side members 15, each of the said side members 15 being provided with openings 16. The base member 13 is provided with end members 17 and side members 18, each of the side members 18 being provided with an opening 19.

The upper edges of the members 17 are provided with inwardly extending lugs 20. These lugs 20 are designed to carry a frame 21 which is secured in position by means of bolts 22. The inner end of the frame 21 has secured to it a second frame member 23, Which extends above the frame 21, as clearly shown in Figure 3, and spaced abovethe said member to form a space between them, which is designed to carry a sprocket wheel 24.

This sprocket wheel 24 is secured in a horizontal position by means of a vertical shaft 25 which has bearings in the members 23 and 21, the member 23 being of substantially a circular shape so as to cover the said sprocket wheel 24.

The sprocket wheel 24 is driven by means of a spur gear 26, secured to the said sprocket 24 by means of pins 27. The gear 26 is driven by means of a pinion 28 mounted on a. vertical shaft 29, the said shaft 29 having hearings in the members 23 and 21, and having its downwardly extending end terminating at a point substantially even with the top of the base 10 and mounted in bearings in a casing 30.

The lower end of the shaft 29 is provided with a worm gear 31 mounted in the said casing 30, the said casing also being designed to receive a worm 32 in mesh with said gear 31. This worm is mounted on a horizontally and transversely arranged shaft 33 having its ends extending outside 1,eee,see

of the side members 18 of the base member 13. Each end of the shaft 33 is provided with a belt wheel 34, shown in Figure 1.

Adjacent to the outer end member of the base 13, I have provided a reversible electric motor 35 shown in Figures 1 and 4. This motor 35 is provided with a shaft 36, each end of which is provided with a belt pulley 37, one of which is of a greater diameter than the opposite end. The said pulleys are in line with the pulleys 34.

Each set of pulleys 37 and 34 are designed to receive a belt 38 loosely mounted therein.

Beneath the lower run of each of the belts 38, I have provided an. idle pulley 39, each of which is mounted on an arm 40 pivotally mounted to the side members of the base 10 by means of a stud 41.

The arm 40 is provided with a lever 42 so arranged that the pulley 39 may be elevated to engage the lower run of the belt 38 in such a manner that the said belt may be tightened and one of the pulleys 34 driven from the corresponding pulley 37 as the motor 35 is operated.

By this arrangement, it will be seen that when one of the levers 42 is pulled, the shaft 33 will be driven at a given speed, while if the opposite lever 42 is operated, said shaft 33 will be driven at another speed. The sprocket wheel 24 will consequently be driven at a largely reduced or increased speed due to the mechanism above described. The said sprocket 24 may be reversed by reversing the motor 35 through the ordinary electric control devices.

At the top of the base member 12, I have provided a frame 43 similar to the frame member 21, and also a frame member 44 similar to the frame member 23. Mounted between the members 44 and 43 is a sprocket 45 of substantially the same diameter as the sprocket 24, said sprocket being mounted on a vertical shaft 46 having bearings in the members 43 and 44, as clearly shown in Figure 3.

These sprockets 24 and 45 are arranged at each end of the frames in such a manner that considerable space is left between them, and are designed to carry a chain member 47 in which is included a series of contact blocks 48. These blocks 48 are provided with shoulders 49 and have their faces 50 roughened or corrugated, as shown in Figure 1.

Mounted on the top of the frame members 12 and 13, and in line with the runs of the chain member 47, I have provided channel bars 51, shown in section in Figures 5 and 6. These channel bars are so arranged as to receive the chain members 47, and also provided with grooves 52 to receive the shoulders 49 of the blocks 48. The grooves 52 are of a slightly less depth than the thickness of the said blocks 48 so that stock may be engaged by the said blocks 18 without dragging against the edge of the members 51.

This chain member 47 with its blocks 48 I shall term the endless feed member. The grooves 52 serve to cause the members 18 to travel in a straight horizontal line, and to hold the same against sagging at its cen tral portion. This point is very important, as will hereinafter be made clear.

For clamping stock in position relative to'said feed member, I have provided a laterally extending shaft 53 from each side member of the base members 12 and 13. Each of these shafts is rigidly secured to said side members and provided with a series of diagonally arranged teeth 5 in their upper sides, as clearly shown in Figure 2.

Slidably mounted above each corresponding set of shafts 53, I have provided a frame 55. This frame is provided with a groove 56 on its inner face, the said frame being secured to the upper end of bracket members 66, which are slidably mounted on the shafts 53, best shown in Figures 5 and 6.

The groove 56 is provided with a series of arms 57 mounted on pivots 58. These arms 57 are formed double, and have rota-- tively mounted between their inner ends, rollers 59. A plate 60 is mounted between the arm members 57 against which a spring 61 is mounted. This spring 61 is provided with a. set screw 62 for the purpose of ad justing the tension of the said spring.

The arms 57 are provided with an extension member 63 which-is for the purpose of'limiting the outward movement of the free ends of the said arms against the action of the spring 61, by, engaging the shoulde'r 64 of the groove 56.

The arms 57 are designed to rest in an angular position relative to the runs of the feed chain, as clearly shown in Figure 2, in such a manner that outwardpressure applied to the rollers 59 will cause the said rollers to move outwardly against the pressure of the spring 61.

These rollers 59 form yieldable means for gripping stock between their inner faces and the blocks 48 of the feed mechanism, a piece of stock being shown clamped between the rollers 59 and the blocks 48, as indicated by the numeral 65 and shown in Figure 5. As the feed mechanism is advanced, the stock will be carried by the blocks as past the said rollers 59 and in a straight line, due to the'fac-t that the grooves 52 cause the said blocks 18 to move in straight line.

By this arrangement, it will be seen that stock may be firmly gripped and held in position to be acted upon by cutters herein after to be'described.

For adjusting the members 55 laterally and holding them against movement, I have provided the following mechanism:

Secured to the outer face of each, of the brackets 66, I have provided a block 67. The blocks 67 and the corresponding brackets 66 being designed to slidably receive a bar 68. This bar 68 is provided with diagonally arranged teeth 69 on its under face, the said teeth 69 being designed to coact with the teeth 5 of the shafts 53 in such a manner that as the said bar 68 is moved longitudinally the brackets 66 will be moved laterally, and the members 55. consequently moved laterally, the angle of the teeth 69 being substantially thirty degreeswith the longitudinal axis of the member 68, so that if the handle 68 is grasped manually and a lateral movement imparted thereto, the bar 68 will slide freely and rapidly to impart lateral movement to the said bar '55, this will cause both ends of the said bar 55 to be moved the same amount, so that said bar will always assume a parallel position to the said blocks 48.

In order, however, to lock the bars 55 against lateralmovement, I have provided a bracket 70 adjacent to one end of each of the said members 55 and arranged to carry a screw threaded sleeve 71, one end of which is provided with a hand wheel 72. i

The said sleeve 71 is designed to receive a screw threaded shaft 73, the threads of which are turned in the opposite direction,

from the threads on the said sleeve 71.

The shaft 73 is provided with a pin 7% which is designed to enter a suitable opening in the end of the bar 68, the said shaft 7 3 being adjacent to the endof said shaft 68 in such a manner that as the pin 7% enters the opening of the said bar 68,'the

said bar and the shaft 7 3 will beoperated in unison, the pitch of the threads on the shaft 73 and the sleeve 71 being such that the shaft 73 will be held against longitudinal movement except when the hand wheel 72 is rotated, thereby locking the bar 66 against longitudinal movement and the bars 55 against lateral movement.

By this arrangement, it will be seen that the members 55 may be given a very accurate lateral adjustment by operating the hand wheel 72, which will cause the sleeve 71 to be moved longitudinally and the shaft 73 to also be moved longitudinally in the same direction and. at a slightly higher rate of speed.

By screw threading the shaft 7 3 and mounting it on the inside of the sleeve 71, as shown, I obviate the necessity of using a collar between the sleeve 71 and the bar 68 to take up end thrust of the said bar 68.

This arrangement is very simple and at the same time affords means whereby the maximum amount of power applied to the hand wheel 72 will be imparted to the said bar 68.

When it is desired to move the members 55 outwardly or laterally to adjust the cutters hereinafter to be described, the operator can, by removing the pin 74;, grasp the handle 68 and slide them outwardly without having to operate the wheel 7 2. As soon as the cutters have been adjusted, the said bars may then be slid in the original position and the pin 74 dropped in position. This provides means whereby the members 55 may be quickly operated when it is so desired.

The pressure between the blocks 48 and the rollers 59 is usually sufficient to rigidly hold any ordinary piece of frame material from which doors and similar articles are built.

It is my intention to use this machine for straightening and truing the edges of doors as well as operating on the frame members. In this case, the pressure between the said rollers 59 and the blocks 48 is not always sufficient to insure the door or similar article fromv slipping downwardly as it is advanced through the said feed device.

For that reason, I have provided guide plates mounted beneath the members 55 and 58 which consist of angle irons 75, each of which is carried by means of a supporting bar 76. Each of the supporting bars 76 is pivotally mounted on an arm 77, each end of said arms 77 being mounted on pivot members 78, the said arms 77 being of equal length and so arranged that as the bars 76 are moved upwardly and longitudinally, they will always be carried in a horizontal position.

I have provided four of these supporting plates 75, two on each side of the machine and so arranged that the inner ends of the corresponding plates will come close together at the central portion of the machine, being spaced apart a distance sufiicient to permit the cutter 7 9 to be mounted between them, in such a manner that the cutter may operate on stock mounted above said bars 75. The outer ends of the bars 75 extend beyond the outer ends of the members 76 considerable distance so as to form a support for the stock while it is being started and advanced between the members 48 and the rollers 59.

For raising and lowering the bars 75, I have provided a link 80 pivotally mounted in the bars 76 at one end, and provided with a screw threaded portion 81 at the other end.

This screw threaded portion 81 is designed to receive a screw threaded sleeve 82 which is mounted in a bearing member 83 pivotally mounted in one of the pivot members 78. The sleeve 82 is provided with a hand wheel 84.

By this construction, it will be seen that as the hand wheel 8% is rotated, the sleeve 82 will be rotated, which will cause the link 81 to be moved longitudinally through the said sleeve, and the bars 76 may be elevated or lowered and rigidly held in any one of its positions.

It will also be noted that the bars 76 at the right hand end of the machine, as shown in Figure 1, may be operated independently of the bars 76 at the left hand end of th machine.

This provides means whereby one of the bars 75 will receive the stock before it has moved in the operative position with the cutter 79. The cutter 79 will remove the portion of the material from the lower edge of the stock, and for that reason the other bar 75 will have to be moved in a plane somewhat higher than the plane of the first bar 75 in such a manner that the stock will rest on both of said bars and be caused to move in a straight horizontal line, in such a manner that when the stock is passed over the cutter 79, the lower edge of. said stock will be straight.

if the bars 75 were in line with each other and th stock that is moved over the nutter 79, the weight of the. stock above might cause it to slip between the members 48 and the rollers 59 and a crooked edge be obtained. The manner in which these bars 76 are applied to the stock is clearly shown in Figure 7.

The diameter of the sprocket wheels 24 is such that the runs of the feed member will be spaced apart a distance sufiicient so that the supporting and operating means for the various cutter heads may be supported between the said runs. One of these cutters has already been referred to and is preferably mounted on a shaft 85, best shown in Figure 2, which is the armature shaft of a motor 86. This shaft extends beyond each end of the motor, and is of such a length that a cutter head may be mounted on each end, and each of which is in operative position beneath each of the runs of the feed device so that two stock members may be simultaneously operated upon, or a stock member carried by either of said runs. The cutters 79 may be mounted in the usual manner.

The motor :86 is mounted on a base member 87, shown in Figure 3, the motor in this figure being indicated by the circular dotted line. This base 87 is provided with dovetailed edges 88 which are slidably mounted in a dovetailed groove 89 in a plate 90. This permits the cutters 79 and the motor 86 to be moved axially relative to the said plate 90.

This plate 90 is shown in elevation in Figure 6 and is substantially triangular having one of its corners uppermost and the other two in a horizontal line. Each of the corners of said plate is provided with a slot 91 designed to receive cap screws 92 which are mounted in a plate 93, the slots 91 being so arranged that the plate 90 may be given a slight rotary movement about a central pivot point 94 which is substantially in a horizontal plane extending through the shaft 85 of the motor 86.

The plate 93 is provided at its upper end with lugs 95, each of which is designed to receive a set screw 96 which are designed to engage the edges of an upper corner of the plate 90. By operating these set screws 96, the said plate 90 may be given a slight rotary or rocking movement so as to give the shaft 85 a correct horizontal adjustment.

The plate 90 is provided with openings 97 opposite each side of the pivot member 94. Each of the openings 97 is designed to receive a lug 98 projecting inwardly from the inner face of the plat 93 in such a manner as to engage the base member 87 ofthe motor 86, so that when the cap screws 92 are drawn upwardly, the plate 90 will be moved toward the plate 93, and

consequently the base member 86 will be clamped against the lugs 98. This will prevent the said base member from moving longitudinally in the slot 89. The cap screws 92 will also serve to prevent rotary movement of the plate 90, even if the operator should fail to adjust both of the screws 96.

The plate 93 is adjustably mounted adjacent to the inner face of the inner plate 17.

The vertical edges of'the plate 17 extend laterally beyond the members 118 to form guide ways indicated by the numeral 99, as clearly shown in Figure 8.

Each vertical edge of the plate 93 is pro vided with a rib 100 of a thickness equal to the thickness of the member 99. Each of the ribs 100 is provided with a plate 101 secured in position by means of bolts 102. The ribs 100 and the plates 101 form guides for the plate 93 to permit vertical adjustment of the same.

The upper end of the plate 93 is provided with laterally extending lugs 103 which are designed to receive a screw threaded vertical shaft 104:, the lower end of the said shaft being pivotally mounted in a bar 1.05 on top of the inner end of the plate 23. The upper end of the shaft 104 is provided with a hand wheel 106. As the said hand wheel is rotated, the plate 93 may be lowered or elevated and with it the motor 86 which carries either one of the cutters 79. This provides means for raising and lowering the cutters, and thereby means for adjusting the de th in which the cutter enters the stock.

y rocking or tilting the plate 90, the cutter may be adjusted so that the bits of said cutter strike the stock at the proper angle, even if they should not be ground exactly to the proper angle to the shaft on which the cutter head is mounted. The cutters 79 will take care of any work which has to be preformed on the lower edge of the stockas it is fed to the machine. I

In order, however, to provide for preforming work on the upper edge of thestock, I have provided the following mechanism: This comprises preferably a motor 107 having an armature shaft 108 which servesto carry the cutter head 109. In this motor one end of the shaft is designed to carry a cutter head, the other end being of such a length as to enter the bearings for the armature shaft. The shaft 108 is of such length that it will fall immediately above the stock when the said shaft is in substantially a horizontal position.

The motor 107 is provided witha base 110 having a dovetailed portion 111, shown in Figure 3. This dovetailed portion 111 is designed to be slidably mounted in a supporting member 112. This lmember 112 comprises a circular portion 113 to which is attached parallel guide members 114, best shown in Figure 5.

These guide members 11 1 carry thegroove in which the member 111.is slidablyjmounted, the member 111 being. of a length slightly greater than the diameter of thecircular member 113, and of a thickness slightly greater than the thickness of the members 114. The member 113 is rotatively mounted in a frame member 115.

The member 115 is slidably'mounted in vertically arranged members 116. These guide members are secured to the members 51 by means of suitable bolts 117, and also to the top flange of the base member 10. The guide member, 116 is provided with a dovetailed groove 118 in which guide members 119 are slidably mounted, as shown in Figure 9.

Slidably mounted on the guide'm'ember 116, I have provided an auxiliary frame 120 which has guide members 121'. This frame 120 is mounted parallel with the frame 115, and so arranged that a slight space 122 is provided between them. The frame 120 is provided with an opening for also receiving the member 113.

The said frame 120 is provided with an annular groove 123 in which is mounteda ring 124. The said ring 12 1 is secured to the member 113 by means of cap screws 125 in such a manner that as the said cap screws are tightened, the member 113 will be pulled toward the ring 124. This will cause the members 112 to engage'the members 111, which in turn will engage the face of the plate 115 due to the fact that-the members 111 are longer'than the-diameter of the opening in which the member 113 is mounted. This also draws the members 119 and 121 adjacent to thenie'mben 118, thereby clamping the member 113 against rotation, the member against longitudinal movement in its grooves, and the frame against vertical movement in the guides 116.

By this arrangement, the operator has to loosen the cap screws in order to accomplish any of the adjustments. This in turn will so loosen the members that any of the adjustments may be made. Then the said cap screws are tightened, all of the adjustments are simultaneously tightened, thereby obviating any possibility of the operator forgetting to tighten part of the adjustments.

To more easily and more accurately obtain the longitudinal or axial adjustment of the cutter heads and the motor 107 I have provided a screw threaded shaft 126 arranged diametrically in the member 113. The shaft 126 is designed to receive a hand wheel 127 which is designed to operate in a groove 128 in a block 129.

This block 129 is secured to the base of the motor by means of bolts 130 in such a manner that as the wheel 127 is rotated, the said wheel will move longitudinally with the shaft 126, and thereby carry the block 129 longitudinally with the said shaft, and consequently the motor 107. This pro Vides for actual adjustment of the cutter head.

1n order to accomplish the vertical adjustment of the cutter head, and also the memher 113, I have provided a plate 131 mounted on the upper ends of the guides 116.

This plate 131 is designed to receive a rotatively mounted vertical shaft 132, the up per end of which is provided with a hand wheel 133 and a collar 134 mounted adjacent to the underside of the plate 131.

The lower end of the plate 115 is provided with a laterally projecting arm 135 which is designed to receive a screw threaded portion 136 of the shaft 132 in such a manner that as the shaft 132 is rotated, the member 135 together with the member 115 will be elevated or lowered, and thereby the vertical adjustment of the cutter heads accomplished.

It is sometimes desirable to move the cutter heads to operate above either of the feed devices which may be easily and quickly accomplished by loosening the cap screws 125, then rotating the member 113 to an angle of one hundred eighty degrees, which will leave the cutter head in position over the opposite feed device, after which it may be clamped in position. or if it is desired, the shaft 108 may be moved toa vertical position.

It is also desirable to provide a cutter head for actuating on the lower edge of one of the faces of stock. In order to accomplish this, I have provided a motor 137 which is arranged with its axis in a vertical position, one end of which is designed to carry a cutter head 138, shown in Figure 1. This motor 137 is mounted on a base member 139, shown in section in Figure 10,

The base member 139 is slidably mounted in a disc 140. This disc 140 is rotatively mounted in a frame member 141, the said frame being provided. with acircular groove 142 which is of a slightly greater diameter than the opening in which the member 140 is mounted.

This groove 142 is designed to carry a plate 143, the said plate being secured to the member 140 by means of cap screws 144. The base member 139 is longer than the diameter of the opening through which the member 140 is mounted so that the end of the said member rests on the shoulders 145 of the member 141. When the cap screws 144 are drawn up, the inner face of the base 139 will be drawn against the shoulders 145, and the plate 143 against the shoulders of the groove 142, in such a manner that the members 140 and 139 will be locked against movement. The member 140 will permit the axis of the cutter 138 to be tilted slightly toward or from a vertical position. The cutters may also be adjusted horizontally by slidably mounting the member 141 in a frame member 146.

This frame member 146 is provided with a groove 147 in which a member 148 of the frame 141 is slidably mounted. The memher 146 is vertically slidable adjacent to th inner face of the plate 14 of the base member 12.

This member 14 is provided with flanges 149 against which guide plates 150 of the member 146 operate. These plates 150 are secured in position by means of cap screws 151. The plates 146 and the member 148. being so arranged that as the said cap screws151 are drawn up, the said plate 148 will also be clamped against longitudinal movement.

The inner face of the plate 148 will engage the plate 14. The plate 146 is provided with a lug 152 which is designed to receive a vertical screw threaded shaft so that the member 146 may be elevated or lowered as the hand wheel 154 on the upper end of the shaft 153 is rotated.

The horizontal movement of the plate 148 is accomplished by providing a lug on the outer end of the member 141 and rotatively mounted in a screw threaded sleeve 1.56 having a, hand wheel 157 on its outer end. This sleeve is provided with a screw threaded shaft 158, the inner end of which is secured to the member 146 by means of a screw 159.

By this arrangement, a very accurate horizontal movement may be imparted to the cutter 138.

Suitable chip should be provided for each-ofthe cutters. These, however, fo-rm' no part of this present invention, and for that reason have not been shown.

The wiring of the various motors througlr out this device has not been shown on the drawings due to the fact that this is of the ordinary construction and forms no part of my present invention.

One of the advantages of my machine lies in the fact that the runs of the feed device are spaced apart such a distance that the cutter head 109 may be mounted upon the motor 107 in such a manner that the said motor may be placed between and above the runs in such a manner that the said cutter may be moved in position to operate on stock in either of the runs; or the motor 107 might be providedwith two cutters similar to the motor 86, and work preformed on both sides of the machine; or the cutters may be provided with different bitsand two different kinds. of work preformed, one on one side and the other on the other side. I

It might happen that it is desired to preform two or threekinds of work onsimilar stock, which would first be run through one side and back through the opposite side.

By my construction, it will be seen that the machine may be set topreform several different kinds of Work without having to reset the machine each time. That is, stock may be fed through one side of the machine and work preformed on the. top edge and also on the bottom edge at the same time. The stock may then be fed through the opposite run and work preformed on the side of the stock if it is sodesired.

Another advantage of my device lies in the fact that stock may be fed slowly until the piece starts to enter the cutter, after which is may be backed out to ascertain if the cutter has been properly adjusted before the stock is run "entirely through the machine, thereby providing means whereby the operator may ascertain without spoiling a piece of stock if the cutter has been properly adjusted. If it is found to be correct.

stock maybe fed to the cutter at either of the speeds desired.

-Anotheradvantage of my construction lies in the fact that if stock is fed, say onehalf way through, and the cutter should strike a portion having twisted grain running in the. "wrong direction, they stock might be backed out,'and the feed mechanism reversed and the stock fed from the opposite direction,

-which will cause the cutter tocut through the cross grain without tearing the same.

Another advantage of my construction lies -in the fact that the guide members 55 may be easily and quickly slid to the outer limit -of movement so as to enable the operator to "get to the cutters when changing them on their arb ors.

It will further be seen that by pivoting the motor 107 so that the shaft 108 may be moved to an inclined or vertical position, the .cutter may be easily gotten at for removing, or in case larger stock is being run through the machine, and the operation is to be 'n'eforined'on its lower edge. The cutter 109, with its shaft 108, may be easily and quickly thrown into a vertical position, so the said cutter will be out of engagement with the stock without having to remove the cutter from the shaft. I

Another advantage of my device lies in the fact that the rollers 59 are so arranged in the members 55 that the pressure of-the.

rollers 59 upon the stock will be sufficient to hold the said stock rigidly against the feed chain, which, as before described, is mounted. to travel in a straight channel in such a manner that the stock will be fed to the cutter in a straight line, so if a crooked piece of stock should be fed to the cutters, the finished edge made by the said cutters will be straight. This is especially true in narrow stock which will bend. easily.

The guide plates that are ordinarily used in machines of this kind cannot possibly accomplish this purpose due to thefact that the stock will bend under the feed rollers.

By mounting the cutters on motor shafts,

guides, a stock feeding mechanism for moving material in operative relation with said guides, a cutter head, cutter head supporting and driving means, adjustable 'means for pivotally supporting said cutter head supporting and driving means, the lastsaid means being located between said guides 'in such a manner that the cutter head may be adjusted to operate on stock as it is fed through either of said guides, and means for driving said stock feeding mechanism.

2. A frame, spaced and parallel stock receiving guides adjustably mounted on said frame, means for adjusting either of said guides toward or from each other, stock feeding mechanism operativelv connected with said guides, and means for driving said stock feeding mechanism, a cutter head, a cutter head supporting and driving means, and adjustable means for pivotally supporting said cutter head supporting and driving means in such a manner that said cutter head maybe adapted to operate on stock in either of said guides.

A frame, spaced and parallel stock guide members adjustably mounted on said frame, means for adjusting either ofsaid gulde members toward or from each other,

each of said guide members including yieldable contactldevices, an endless feeding mechanism mounted between saidguide members having its runs substantially parallel with the corresponding guide members so that stock may be fed between the yieldable contact members and said teed mem ber, means for driving said endless feeding mechanism in either direction, a cutter head, a cutter head supporting and driving means, and adjustable means for pivotally supporting said cutter head supporting and driving means, so that the said cutter he d may be adapted to operate on work supported in either of said guide devices.

4. A frame provided with a set of later ally extending supporting shafts on its sides, a guide member slidably mounted on each set of supporting shafts, an endless feeding mechanism operatively mounted be tween said guide members so that stock 11 ay be fed in one direction adjacent to one guide member and in an opposite direction adjacent to the other guide member, a single cutter head adapted to be adjusted to operate on stock in either guide member, means for driving said cutter head, and means for moving either of said guide members toward or from each other and in parallel relation to each other.

5. A frame provided with a set of laterally extending supporting shafts on each of its sides, each of said shafts being provided with diagonally arranged teeth, a guide member slidably mounted on each set of supporting shafts, an endless feeding mechanism operatively mounted between said guide members so that stock may be fed in one direction adjacent to one guide mem her and in an opposite direction adjacent to the other guide member, a cutter head for operating on stool: in either guide member, means for driving said cutter head, means for moving either of said guide members toward or from each other in parallel relation to each other, said means including a lon itudinal movable bar having one of its races provided with diagonally arranged teeth designed to engage the diagonally arranged teeth of said laterally extending supporting shafts, means for moving said longitudinal bar comprising a bracket, a screw threaded sleeve mounted in said bracket, and a screw threaded shaft mounted in said sleeve, said shaft being det-achably secured to said longitudinal bar,

and the said sleeve being screw threaded in the opposite direction of the screw threaded shaft.

6. A frame having a set of laterally extending supporting shafts from each of its sides, each of said shafts being provided with diagonally arranged teeth, a stock feeding mechanism designed to feed a plurality of pieces of stock in parallel relation to each other, means for driving said feeding device in either direction, a guide member slidably mounted on each set of supporting shafts and designed e ees sea operative relation to said feeding device, means for moving each of said guide members toward r from the stock, each of said means including a longitudinal movable bar having die nal teeth designed to engage the uiagonai teeth of st" d supporting shafts so that as the said bar moved longitudinally, the guide member will be moved laterally, screw actiiiated means for moving said bar, and detachable means for connecting said bar and said screw actuated means, the angle of the diagonal teeth being so arranged that the guide bar may be moved laterally when the longitudinal bar has been disconnected from the screw actuated device.

7. A frame, a stock feeding mechanism, means for driving said stock feeding mechanism, movable guide members for engaging and clamping stock adjacent to said feed mechanism, operating means for moving said guide members in parallel relation toward or from said feed mechanism, a screw actuated device for operating the last said means, means for detachably connecting said operating means and said screw 0perated device.

8. A frame having a set of laterally extending shafts on each of its sides, each of said shafts being provided with diagonally arranged teeth, a guide member slidably mounted on each set of supporting shafts, means for moving each of said guide members toward or from each other, each of said means including a longitudinal movable bar having diagonal teeth designed to engage the diagonal teeth of said supporting shafts so that as the said bar is moved longitudinally the guide members will be moved laterally, means for actuating said bar, and means for detachably connecting the.last said means and said bar.

9. A frame having a set of laterally extending shafts on each of its sides, each of said shafts being provided with diagonally arranged teeth, a guide member slidably mounted on each set of supporting shafts, means for moving each of said guide members toward or from each other, each of said means including a longitudinally movable bar having diagonal teeth designed to engage the diagonal teeth of said supporting shafts so that as the said bar is moved longitudinally the guide members will. be moved laterally, screw actuated means for moving said bar, and detachable means for connect ing said bar and said screw actuated means, the angle of the diagonal teeth being so ar ranged that the guide bars may be manually moved laterally when the longitudinal bar has been disconnected from the screw actuated device.

10. A frame provided with a set of laterally e tendin supporti n sh aft s from one of o Pisa

vided with diagonally arranged teeth, a guide member slidably mounted on said supporting shaft, an endless feeding mechanism mounted in operative relation to said guide, a cutter head for operating on stock carried by said feeding mechanism, means for driving said cutter, means for moving said guide toward or from the stock as it is carried by the feeding mechanism, said means including a longitudinally movable bar having one of its faces provided with diagonally arranged teeth designed to engage the diagonally arranged teeth of said laterally extending supporting shaft, and means for moving said longitudinal bars 11. A frame provided with a set of laterally extending supporting shafts from one of its sides, each of said shafts being provided with diagonally arranged teeth, a guide member slidably mounted on said supporting shaft, an endless feeding mechanism mounted in operative relation to said guide, acutter head for operating on stock carried by said feeding mechanism, means for driving said cutter, means for moving said guide toward or from the stock as it is carried by the feeding mechanism, said means including a longitudinally movable bar having one of its faces provided with diagonally arranged teeth designed to engage the diagonally arranged teeth of said laterally extending supportin shaft, means for moving said longitudinal bar comprising a bracket, a screw threaded sleeve mounted on said bracket, and a screw threaded shaft mounted in said sleeve, said shaft being detachably secured to said longitudinal bar, said sleeve being screw threaded in the opposite direc tion from said screw threaded shaft.

12. A frame, an endless flexible feed mechanism having parallel runs, a guide plate adjacent to and parallel with each of said runs, said runs and said guide plates being designed to feed stock between them, a cutter head, a cutter head supporting and driving means, adjustable means for pivotally supporting said cutter head supporting and driving means located between said guide members in such a manner that the cutter head may be adjusted to operate on the top edge of stock as it is fed through either of said guides, a cutter head located beneath each of said guides, means for driving both of the last said cutter heads, said means being mounted to move the cutters axially or laterally to said axial movement, a third cutter head, and means for mount ing said third cutter head on a vertical axis, the last said means being capable of axial and also lateral movement.

' 13. A frame designed to carry a cutter head and a stock feeding mechanism, a guide bar adapted to move toward or from the stock as it is being fed to the cutter, means for actuating said guide bar including a longitudinally movable bar, a bracket having a screw threaded opening, a sleeve for said opening, said sleeve being internally screw threaded in the opposite direction from its outer surface, a screw threaded shaft for said internally threaded portion of said sleeve, means for detachably connecting said shaft to said bar, and means for rotating runs, said runs and guide members being designed to support and feed stock in a vertical position between them, means for moving said guide members toward or from said runs, a cutter device mounted to operate on the lower edge of stock carried by said feed mechanism, a plate capable of vertical adjustment to the rear and front side of each of said cutters for carrying the weight of said stock, and means for independently adjusting each of said plates.

15. Av frame, an endless feed mechanism having parallel runs, means for driving said feed mechanism in either direction, a guide member parallel and adjacent to each of said runs, said runs and guide members being designed to support and feed stock'horis zontally in a vertical position, means for moving said guide members toward or from said runs, a cutter device mounted to operate on the lower edge of stock carried by said feed mechanism, a plate capable of vertical adjustment to the rear and front side of each of said cutters for carrying the weight of said stock, means for independently adjusting each of said plates, and a cutter device pivotally mounted above and between said runs to actuate on the upper edge of stock, said cutter device being adapted to swing to position to operate on stock in either of said runs.

16. A frame, an endless feed mechanism having parallel runs, means for driving said feed mechanism in either direction, a guide member parallel and adjacent to each of said stock, said cutter device being adapted to swing to position to operate on stock in either of said runs, and a third cutter device adapted to actuate on one side edge of said stock, all of said cutters being capable of universal adjustment, the universal adjustment of each of said cutters being accomplished by a single locking device.

17. A frame, an endless feed device comprising a linked chain having a series of coacting blocks, the blocks of said chain being designed'to travel in a groovedchannel so that the said blocks may be made to move in a straight path, the said chain being arrangedto form two straight runs, a clamping frame adjacent to each of said runs, said frame being provided with a series of yieldable contact members, means for moving each of said frames laterally in parallel relation with its adjacent run, means for driving said chain in either direction so that stock may be fed between the blocks of' said chain and the contact members of said guide bars in such amanner that the said stockmay be clamped-and moved in a straight path, and a cutter device arranged to actuate on said stockas it is being advanced.

18. A frame, an endless feed device comprising a linked chain having a series of coacting blocks, the blocks of said chain being designed to travelin a grooved channel so that the said blocks may be made to move in a straight path, the said chain being arranged to form two straight runs, a clamping frame-adjacent to'each of said runs, said frame being provided with a series of yieldable contact members, means for independently adjusting the pressure on each of said contact members, means for moving each of said frames laterally in parallel relation to its adjacent run, means for driving said chain in either direction so that stock may be fed between the blocks of said chain and the contact members of said guide bars in such a manner that the said stock may be clamped and moved in a straight path, and a cutter device arranged to actuate on said stock as it is being advanced.

19. Aframe provided with a set of laterally extending supporting shafts from one of its sides, each of said shafts being provided with diagonally arranged teeth, a guide member slidably mounted on said supporting shaft, an endless feeding mechanism mounted in operative relation to said guide, a cutter head for operating on stock carried by said feed-ing mechanism. means for driving said cutter, means for moving said guide toward or from the stock as it is carried by the feeding mechanism, saidmeans includinga longitudinally movable bar having one of its faces provided with diagonally arranged teeth designed to engage the diagonally arranged teeth of said laterally extending supporting shaft, and detachable means for moving said longitudinal bar, the angle of the diagonal teeth being so arranged that the guide bar inav be moved laterally when the longitudinal bar has been disconnected from the actuating device.

20. A frame, a feed mechanism, means for clamping stock in operative position with said feed mechanism, acutter for actuating on said stock, means for driving said cutter, means for driving the said feed mechanism in one direction at variable speeds, and means for reversing the direction of said feed mechanism at variable speeds.

21. A frame, a feed mechanism comprising an endless chain designed to operate over spaced sprockets, means for driving one of said sprockets, said means comprising a gear wheel fixed directly to said sprocket wheel and of a diameter substantially equal to said sprocket, a pinion in mesh with said gear, a shaft for driving said pinion, a worm gear on said shaft, a worm in mesh with said gear, a shaft for driving said worm, a belt pulley on each end of the last said shaft, a motor having the ends of its armature shaft extending, a belt pulley on the extended ends of said motor shaft and in line with a corresponding pulley on said worm shaft, a belt for each set of corresponding pulleys, the speed ratio of one set of belts and pulleys being different from that of the opposite set, a belt tightener for each of said belts and a lever for controlling each of said tighteners, means for clamping stock in operative relation with said feed chain, and a cutter fixed in operative relation with stock fed by said chain, and means for driving said cutters.

22. A frame having a series of laterally extending shafts, said shafts being provided with diagonally arranged teeth, a guide bar slidably mounted on said shafts, means for moving said guide bar including a bar movable laterally with the movement of said guide bar, the last said bar having diagonally arranged teeth designed to engage the diagonal teeth of said supporting shafts, as the said bar is actuated the guide bar Will be moved on said shafts, and detachable means for actuating said bar.

, 23. A frame having a series of laterally extending shafts, said shafts being, provided with diagonally arranged teeth, a guide bar slidably mounted on said shafts, means for moving said guide bar including a bar movable laterally with the movement of said guide bar, the last said bar having diagonally arranged teeth designed to engage the diagonal teeth of said supporting shafts, as the said bar is actuated the guide barwill be moved on said shafts, and detachable means for actuating said bar, the angle of the diagonal teeth being so arrangedthat the guide bar may be moved laterally when the said actuating bar has been disconnected from its actuating mechanism.

24. A frame, an endless feed mechanism having parallel runs, means for driving said feed mechanism, a guide member parallel and adjacent to each of said runs, said runs and guide members being designed to support and feed stock in a vertical position between them, a cutter device mounted to operate on the lower edge of stock carried by said feed mechanism, a plate capable of I vertical adjustment to the rear and front side of each of said cutters for carrying the weight of said stock, means for independently adjusting each of said plates, and a cutter device pivotally mounted above and between said runs to operate on the upper edge of said stock, said cutter device being adapted to swing to position to operate on stock in either of said runs, and a third cutter device adapted to operate on one side edge of said stock, a number of said cutters being capable of universal adjustment.

Des Moines, Iowa, June 30, 1921.

SERN MADSEN.

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