US1847274A - Shoemaking - Google Patents

Description

zZ'I-LSZ March 1, 1932.

IIIIIIIIIIIIIIIIIIIIIIIII Filed March 14, 1927 J. F. STANDISH SHOEMAKING Search Roam 4 Sheets-Sheet l March 1, 1932. J. F. STANDISH 1,847,274

SHOEMAKING Filed March 1 4, 1927 4 Sheets-Sheet 3 Fig.5.

March 1, 1932.

J. F. STANDISH I 1,847,274

SHOEMAKING Filed March 14. 1927 4 Sheets-Sheet 4 Fig. 7.

Patented Mar. 1, 1932 UNITED STATES PATENT; OFFICE" JOHN F. STANDISH, F WINTHROP, MASSACHUSETTS, ASSIGN'OR TO UNITED SHOE MA- CHINERY CORPORATION, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY SHOEMAKING Application filed March 14, 1927. Serial No. 175,251.

the attachment of heels.

When heels are nailed to the heel-seats ofshoes, it is desirable-that the parts of the work shall be held firmly together duringthe driving operation, so the inserted nails may secure them in this relation and thus insure a tight rand-crease. As such operations are customarily carried on, there is imparted to the clamping elements a substantially unvarying movementof approach, after initial contact with the work has been established. This is changed only through direct manual control by the operator. The success of the operation, as affected by this clamping pressure, therefore depends upon the judgment of the operator and his, capacity for taking pains. The rand-creasemay gap or the nails be badly clinched as a result of too little pressure, or the work be deformed or lasts broken because of too much, A cause of this objectionable difference in pressure may be found in the heights of the heels,

riation be in the heels or; in: other shoe parts.

To this end, and considering the invention in one of its aspects, I combine with a workmember being relatively movable toinitiate the pressure upon the work, together with means controlled by said movement and preferably including fluid mechanism for. producing a further movement dependent in its extent upon the initial pressure-movement. This initial movement effects a measuring of the work, as the height of the heel, and the pressure which it controls, as a result of the further movement, is through a distance dependent upon this measurement. Because other variable elements than the thickness of the work may be present, for so ample the character of the material operated upon, there may be employed means for-- 7 since theextent of pressure-movement which.

would be correct for a low heel might be "of Fig. 1; and to obtain a:' proper clampin'gaction re--- gardless of its thickness, whether-this vasupport a pressure member, the support-and altering the pressure independently of that under the control of the-initial or measuring movement. In thus operating upon shoe- .parts, there is performed a novel method involving the bringing together of such parts 5:.

as a shoe and its heel, measuring the thickness or helght'of the assembled parts, clampmg them as determined by the measurement,

as by movement through a distance proportional to the height, and nailing or other- 6" wlse operating upon'the clamped parts.

Other objects of the invention, as the maintenance ofthe effect of the nail-drivers during their entire stroke and the provision of a worlcsiipporting jack, which, with or without'ch anges in the associated inserting mechanism, may be adjustedfor most effective-co operation with nail-transferring mechanism,

will appear upon consideration of the followin g description, and are defined in the claims. 'm The nail-distributor disclosed herein is made the subject of a divisional applicationfiled FebruarylO, 1930, Serial No. 427,253. 7

In the accompanying drawings, Fig. l is a central, vertical, longitudinal section through one embodiment of the machine of this invention;

Fig. 2 is a sectional detail on the line IIII Fig. 3 shows the machine in front elevation, with parts broken away-4.

Figs. 4, 5 and 6- are sections taken, respectively, on the lines IV-IV', V-V and VIVI of Fig. 1 and with certain parts omitted; sf

' Fig. 7 is a broken front elevation of the nail-supplying portion of the apparatus;

Fig. 8 shows the nail-separators and stops in perspective; and v Fig. 9 illustrates, in broken side elevation, an the setting devices for the nail-stops and reversing abutments.

Secured in a vertical position upon a bracket 10 projecting from the front of a framecolumn 12 is a tubular base 14, upon the upper extremity of which is mounted a jackpost 16. Over the top 18 of this jack-post may be placed ashoe for the attachment. of its heel. While, as herein illustrated, the apparatus is particularly designed for the nailing of a heel from inside a shoe, and therefore oh the last, my invention is generally equally applicable to the outside insertion of nails in the heel of a shoe which contains a last. To permit the work-supporting surface of the jack-top to be best located ,with respect to associated elements, as the device which supplies nails to it, it is vertically adjustable upon the base, being guided therein and held against rotation by a slot-and-pin connection 20. The jack-post rests upon the upper end of a sleeve threaded upon the exterior of the base. To retain the sleeve in the position to which it is turned, a springpressed latch 24 is movable upon the base, it engaging any one of a series of recesses about the lower edge of the post. \Vhen the sleeve is released by lowering the latch and is turned, its elevation or depression will correspondingly move the jack-post, the weight of which it bears. Thus the height of the jack-top may be adjusted within the desired limits.

Guided axially in the post is a spindle 26.

. at the top of which is fixed a driver-plate 28,

movable within a chamber beneath the jacktop. In-this top are arranged vertical passages corresponding in position to the points at which nails used to secure a heel to a shoebottom are to be inserted. To give different nailing designs, any one of a set of jacks may be used, each jack having the passages arranged diflerently. Fixed in the plate 28 and movable in the nail-passages of the ack-top are drivers 30. A spring 32, interposed between the jack-top and driver-plate, holds the drivers normally lowered, giving spaces within the top to receive nails resting upon the upper ends of the drivers. At thebottomof the spindle 26, in a threaded bore. is carried an adjustable contact-screw 34, held in place against accidental rotation by a lock-nut. Arranged to reciprocate in the base, in alinement with the screw 34is a plunger 36, normally depressed by a spring 38 surrounding it. The plunger is joined by a link 40 to a lever42 fnlcrumed in the column and having at its rear extremity a roll forced by the spring 38 into contact with a cam 44 secured to a shaft 46. This shaft is journaled across the column. and is driven in any desired manner, as through a pulley 48. The connection between the shaft and pulley is by'mechanism 50, which may be a Horton clutch, under the control of the operator as is hereinafter described. The driver-actuating surface of the cam is so formed that the upward or nail-inserting movement of the drivers is at a velocity maintained throughout the stroke. Under these conditions, more effective penetration of the heel-stock is obtained, with less tendency for the nails to be deflected from the desired paths than when the speed of driving is reduced toward the end of the stroke, as is the usual practice. By changing the relation of the contact-end of the screw 34 to the plunger 36, the extent of travel imparted to the drivers may be altered, and the driver-movement co-ordinated with the position of the jaclcpost as determined by the sleeve 22. For example, whatever the vertical position of the jack, the drivers may be caused to sink the heads of the heel-attaching nails beneath the inner surface of the heel-seat-portion of a shoe to the desired extent.

The upward force of the drivers, as they insert the attaching nails, is resisted by a head or abutment 52, which, with the jack top, furnishes the two pressure members between which the work is clamped for the nailing operation. The member 52 may be formed with heel-holding and top-lift-holding and spanking devices, indicated at 54 but which form no part of the present invention. The abutment is normally held raised from the jack-top to give sufficient space for the operator to place a shoe upon the jack. It is moved in two steps to apply clamping pressure. There is initial movement by the operator, to establish contact between the heel-seat of a jacked shoe and the heel-seat end of a heel held at 54. This, as will be explained, measures the height of the heel; or, more exactly, the thickness of the work between the opposing surfaces of the jack-top and abutment is determined. Controlled by this measurement, the apparatus, in the second step, places a clamping pressure upon the work, the effect of which will be substantially the same, regardless of the thickness. This result, in the present embodiment of the invention, is obtained in the following manner: The abutment member 52 is adjustably mounted upon the lower extremity of a cylinder 56 guided for vertical movement in an overhanging portion of the column 12. Fitting the interior of this cylinder is a hollow plunger 58, these two members furnishing a telescoping fluid-container of variable capacity. Oil provides a desirable fluid'medium. Connected to the lower portion of the cylinder is a lever 60 fulcrumed upon the column, and this lever is joined by a rod 62 to a treadle 6st pivoted upon a slide 66' guided at the bottom of the column. A spring 68, encircling the rod 62 and abutting against a bracket upon the frame and against a collar fast upon the rod, exerts its expansive force to hold the abutment 52 and the treadle 64 normally raised. lVeights 70, mounted upon the slide 66 and removable so that their effect may be altered, resist the elevation of said slide until a suflicient force has been applied thereto. The plunger 58 is carried by a lever 72 fulcrumed at the top of the column. To avoid interference between the reciprocatory plunger and the 0scillatory lever during their movement, the connection between them is yieldable, the

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a cam 80 fast upon the shaft-46.

lunger being held up to the lever by springs $4 (Fig. 4). Rods 76, 76 unite the lever 72 to antactuating lever 78 fulcrumed in the column; and which has a roll contacting with g A spring arranged similarly to the spring 68 but about each rod 7 6. has the eifect of normally maintaining the lever 72 raised and the roll of lever 7 8 in engagement with its cam. Guided axially at the top of the plunger 58 is a rod 84;, to the lower extremity of which is fixed a valve member 86 within the cylinder 56. This valve is urged normally against a seat upon the plunger by a spring 88 located between the top of the plunger and a head attached to the rod and having rotatable upon it an anti-friction roll 90. Fulcrumed in a bracket rising from the column over the lever 72 is a lever 92, upon a depending arm of which is formed a cam 94 movable in contact with the roll 90'. A rod-96 joins the lever 92 to the lever 60, so it is moved from the treadle with the cylinder 56. The upper end of therod 96- is readily detachable from the lever and, at the lower end, is threaded into a pin 98 rotatable in the spaced arms of the lever 60. By disconnecting the rod 96 fromthe lever 92, it may be turned to raise or. low--- er its upper extremity by virtue of the screwmounting in the pin 98 and thus alter its effective length. Upon again joining it to the lever, the normal position of this Wlll be changed, and the relation of the rod 84 and the valve 86 carried thereby to the valve-seat upon the plunger 58 correspondingly altered against a horizontally extending arm of a,

by the cam 94.

To outline the operation of the machine, as far as work-clamping and nailing are concerned, the operator places a shoe upon the jack l8 and the heel in the holder 54, and presses down the treadle 64;. The weights are at this time sufficient to prevent the slide 66 from rising, so the treadle-turns upon its pivot in this slide, lowering the rod 62. I

This. through the lever 60, depresses the head until it brings the heeleseat-end of the heel.

against the heel-seat of the jacked shoe, giving a preliminary or measuring pressure. During this downward travel of thehead, the rod 96 has been turning the cam 94, and, by contact with the roll 90, lowering the valve 86. As a result of this, the valve moves away from its seat upon the end of the plunger 58 an amount corresponding to the head-depression. \Vhen the head has been stopped by the heel, as previously indicated,

the resistance causes the slide 66 to be raised,

the force exerted upon the treadle overcoming? the we rjhts. Xow the connection of the rod 62 to the treadle becomes the fulcrum. In the upward movement of the slide, a contact member, 100, movable upon it, is carried bell-crank lever 102 pivoted upon the column and so held by a spring 104, connecting it to vllvu the treadle, that the clutch 50 is maintained normally against action. The turning of the lever releases the clutch, so that the retation of the drivin shaft 46 begins. During this turning of the shaft, the contact member 100 is disengaged from the bellcrank lever against the tension of a spring 106, so that the lever resumes its clutch-disconnecting position, and the shaft is stopped after a single rotation. Brake mechanism 168 assists in bringing the shaft to rest. The first effect of the application of power to the machine is to cause the cam 80, acting through the lever 78, to draw down the rods 76. This lowers the plunger 58 through the cylinder 56, the movement at first being idle because of the freedom of the fluid contained in the plunger and cylinder to flow through the seat-opening until such seat reaches the valve .86. The passage between the plunger and the depression of the head 52, which therefore xerts a clamping pressure between the heel and heel-seat of the jacked shoe. The distance traveled by the abutment under the influence of the power mechanism will vary according to the amount which the head had been previously moved by the operator to establish engagement between the heel and heel-seat, and therefore may be made substantially proportional to the height of the heel. The action will perhaps be made clearer if the effect of this mechanism at the eX- treme limits is considered. If the work occupied the entire space between the jack-top l8 and the head 52, when the operator first depressed the treadle there would be no movement of the head, and therefore none of the valve 86. The valve would consequently be in its closed position when the operation of the machine under power began, and clamping pressure would be applied as soon as descent of the plunger 58 started. Suppose, on the other hand, there were no work upon the jack. Then, were the operator to lower the head, the valve would be carried to its maximum separation from the seat on the plunger. In the lowering of the plunger under the power of the machine, the seat would not reach the valve before the operating cycle was completed, and there would be no further pressure applied. After the heel has been clamped with a force which, as has been explained. is controlled by the amount of compressible material between the head and jack-top, the cam 44 acts upon the lever 42 toelevate the plunger 36 and force into the clamped work the nails which have been previously deposited in the jack-top-passages upon the drivers 30. The cam 80, in the completion of its rotation, removes the pressure produced under power, and the op- VII erator is now freeto take the heeled shoe from the jack. The compressibility of the work may depend upon the character of the material- Thatis, if the stock were firm, it would-require less pressure than if it were soft. Adjustment of the normal position of the cam 94 allows the action to-be made uniform in this respect. If the stock is less compressible than usual, the rod 96 may be disconnected from the, lever and lowered through its pin 98, correspondingly carrying the valve 86' away from its seat, and the rod reconnected to the lever 92. Because of this adjustment of the valve, a greater downward travel of the plunger 86 is required to close the passage between said plunger and cylinder. Therefore, less pressure'is applied to the work under the power of the machine. An upward adjustment of the rod 96 produces the opposite effect.

- column 12 has, at the upper rear portion, a

bracket 120, upon which is pivoted about a sleeve 122 a support 124 for the chief elements of the distributor. A pin 126 serves to detachably lock the support upon the bracket in its normal position, and may be removed to allow the support and containing elements of the distributor to be tilted rearwardly for the purpose of emptying the nails. A nail-receptacle is carried by the support, this being shown, in part. as a conical casing 128 integral with said support, with i 3 interior accessible through adoor 129. Secured to a wall 130 within the casing is a horizontal spindle 132, about which rotates a nail-drum 134, held releasably in are herein shown, may consist of pairs of spaced bars 142, 142, upon which the nails descend, hanging by their heads. To free the raceways of displaccdnails which might interfere with the proper delivery, pairs of and when these are rotated in an anti-clockwise direction Fig. 1). they act to rake back the displaced nails. either into position between the bars, or so they fall into the cas ing and return to the drum. To rotate the shaft 146, which is journaled horizontally across the forward end of the casing, it is belted at (Fig. 3) to the driven member of a clutch 152. This member, together with the driving member of the clutch, is rotatable about the sleeve 122. Said driving member is-belted at 156 to the :hub ofthe main driving pulley 48, andis controllable toi'produce engagement or release of the-clutch, through a rod 153 extending through the sleeve and provided with a handle 154. From the clearing-wheelshaft, rotation may be communicated to the drum 134 through a train of gearing 158 (Fig. 1), a shaft 160 journaled upon the support, and gearing 162.

To empty the distributor of its contained nails, it is tilted upon its pivot, so that the support leaves its seatupon the bracket, and the raceways become suh'iciently inclined to cause all the nails in them to flow back by gravity into the drum. In this position, the distributor is held by contact of depending arms 167 with portions 163 of the frame. All the nails being discharged from the raceways, the operator has only to remove the nut 136, and, lowering the drum from the spindle. empty it. Then it may be filled with nails of another length. restored to its place upon the spindle, and the distributor and its support tipped back to the normal position. Extending between the column and each arm 167 upon the support, is a spring 165, which is under constant tension. This acts as a counterbalance for the weight of the tilting portions of the; distributor, both. during the nail-emptying operation and during return movement. The double action is due to the fact that the arms 167 pass to opposite sides of the vertical through the pivot 122 during the oscillation of the distributor.

It may be desired to supply to the jacktop nails from all the raceways or from but a portion. I have shown five vof the raceways as invariably conveying nails, while with the other six raceways means is associatedfor checking at will the flow-through them, the 3 control being exercised in groups. In the present instance, the groups include, respectively, five, seven, nine and eleven raceways, though .any other desired. combinations might be employed. Mounted upon the support, above each raceway. to be governed, upon aspring 164 is a stop-finger 166, the

.point of which may either occupy an-etfective position, in which it lies in the path of the nails. or may be so raised that it is ineffective, To allow the chosen combination of stop-fingers to be selected to cut off the supply of nails through the corresponding raceways. there extends beneath the fingers a shaft 168 journaled at opposite sides of the raceways. Secured upon the shaft and cooperating with each finger is a earn 170, the finger being forced against the cam by its mounting-spring. Fixed upon one end of the shaft is a handle 172, by which it may be turned, this handle carrying a spring-actuated latch 174, adapted to engage any one of six numbered openings 176 in an indexplate 178. The angular arrangement of the cams about the shaft 168 is such that they gers, so that the entire series of raceways del1 retreat from the wall 206. The first moveliver the nails.

Just before the nails leave the body-portions of the raceways andpass upon more steeply inclined ends. 179, which insure the proper advance of single nails, they are acted upon by separating devices, which pick them off one by one for delivery. Each device is in the form of a disk 180, having in its periphery a notch 182 of such dimensions that, when brought into registration with the upper or main portion of the raceway, it will receive a single nail, and then, uponrotation of the disk, will transfer this to the lower section 179 and release it for delivery. Each disk is secured upon a shaft 184-journaled at one side of the raceway controlled and having fixed upon its lower end a pinion 186. WVith the entire series of pinions meshes a rack-bar 188 mounted to reciprocate in guides beneath the raceways. The bar is joined, through a pinand-slot connection 190 (Fig. 1), to a bellcrank lever 192 pivoted upon the support 124. A link 194 is articulated to the bell-crank lever and to a lever 196 fulcrumed at one side of the column. The manner in which this lever 196, and therefore the separator-disks, are operated in correct time-relation with the associated elements will later appear.

Since the nails are-driven upwardly into the work from the jack, they must be delivered with their heads down. To reverse them from the positions theyoccupy upon the ra ceways. they contact with abutments 200 (Fig. 9) so located between the ends 179 of the racewav-bars'that they restrain the (le -f pending points, while the heads, continuing their advance, overbalance on the upper edges of the abutments. The nails therefore enter vertical passages 202 with their points up. These passages are formed between the forward extremity of a bracket 204 secured to the support 124 and a removable wall 206 held in place by screws 208. In case of clogging. this wall may be taken off to clear the passages. To most effectively produce the reversing action, the abutments must be differently lccated for different lengths of nails.

have therefore mounted them for adjustment in two directioily-vertically toward and from the nail-supporting surfaces of the raceways, and horizontally to approach and ment causes the nails to contact with the abut ments at points along their lengths at which they best overbalance. The second gives the correct space between the abutmentand the wall for the nails to turn without interference. I prefer to obtain the two adjustments simultaneously by a diagonal movement ofthe abutments, or atan angle to the vertical. For this purpose, each abutment is provided with a slot 210 inclined upwardly and forwardly and having passing through it a supporting rod 212 mounted at its ends in the bracket 204. To move each abutment over the rod 212, there is shown connected to it an eccentricrod 214 acted on by an eccentric 216 fixed to a shaft 218 journaled in the bracket below the raceways. Securedto one extremity of the shaft is a handle 220 having a spring-actuated latch 222 arranged to enter any one of a series of openings 224 in an index-plate 226. The openings 224 may bear designations corresponding to lengths of nails which the distributor is to deliver. As illustrated in Fig. 9, the abutments are adjusted for acting upon the shortest nail which is to be used, the ec- 1:

centrics 216 holding the abutments at their highest points and nearest to the wall 206. At this time, the lower end of the slot 210 is in proximity to the rod 212. Then the shaft 218 is turned by the handle to set the eccentrics at. another angle indicated by the indexopenings 224, the abutments are moved down upon the rod and simultaneously away from the wall. The upper edges of the abutments therefore engage the longer nails farther from the heads, and greater space is given between these edges and the wall 208 for the nails to reverse. From the passages 202, the nails pass through curved tubes 228 to a set of delivery-tubes 230 mounted in a removable frame 232. The lower ends of the tubes 230 terminate in a foot-plate 234, in which they arearranged according to a nailing design similar wall or a part of the passages in the jack-top. The substitution of the'fram'es 232 with diiferently arranged tubes will provide for the delivery of the nails in accordance with the design desired for the attachment of a particular heel.

To take the hails from the distributor and transfer them to the jack, a loadenblock 240 Fig. 1), having openings corresponding to the passages in the jack-top, is movable from a nail-receiving position, in which its openings are alined with those in the foot-plate 234, to a delivering position, with the blockopenings registering with the'passages in the jack-top. To eifect this movement, the loader-block is carried by a bar 242 guided for horizontal reciprocation upon the column. lVith the bar in its rearward position and the loader-block beneath the foot-plate, the openings of the block are closed by a shutter 244 pivoted upon the under side of the block, and latched in its position of closure by a member 246 (Fig. 7) against the tension of a spring 248. At this time, a shutter 250, arranged to slide between the ends of the tubes 228 and230, has its delivery-openings alined with these tubes, being thus held against the force of a spring 252. This movement of the shutter 250 is produced by a lever 254 fulcrumed upon the column and receiving con tact of a member carried by the loader-blockframe when the block is in the nail-receiving relation. lVhen the loader-block leaves the foot-plate and travels toward the jack, the spring 252 closes the shutter 250, ready for the receipt of the succeeding load of nails from the raceways under the control of the separator-disks 180. Upon the arrival of the loader-block over the jack and the alinement of its openings with the jack-passages, the shutter 24-1 is tripped to discharge the nails by the engagement of its latch 246 with the rear of the jack-top. It is restored to its normal latched position, in which it closes the loadenblock-openings, by contact of its edge with a portion of the machine-frame or an element carried thereby during the rearward movement of the bar 242.

For the actuation of the loader-block, there is formed in the under side of the bar 242 a rack 256, with which meshes a gear 258 driven frictionally by a tubular shaft 260 which it surrounds. The frictional connections 262 (Fig. 7 between the gear and shaft permit the operation of 'the bar to the extreme positions of the loader block, and then slip when these limits are reached. About the shaft are bevel- pinions 264 and 266, the former constantly rotated through sprocket-gearing 268 (Fig. 3), a counter-shaft 270 and spur-gearing 272 from the driven portion of the clutch 152. The pinion 266 is driven from its companion through an idler pinion 274. The adjacent faces of the pinions 264 and 266 carry clutch-portions 276, 276, either of which may be engaged by a clutch member 278 compelled to turn with the shaft 260, while it may be slid into engagement with either of the portions 276 by its connection to a rod 279 extending through the tubular shaft. A hand-lever 280 is fulcrumed upon the column, convenient for manipulation by an operator when he removes a shoe from the jack, and is joined to the rod 279 to move it, engagement being normally maintained between the member 278 and the clutch-portion of gear 264 by a spring 282. This portion so rotates that it will hold the loader-block in its nail-receiving position beneath the foot-plate of the distributor, the friction device 262 slipping. A member 284 surrounds and is connected to the shaft 260 by a clutch 286. which may be of the Horton type and which is effective only for rotation of the shaft in the direction produced by the gear 266. A projection 288 upon the lever is at this time removed from a depression in the member 284. As soon as this member starts to rotate, a surface upon it, acting upon the lever-projection, locks the member 278 in engagement with the left-hand clutch-portion 276, this relation being maintained until the depression again reaches the projection, when the spring 282 will re-establish the engagement of the clutch member with the other driving pinion 264. While the clutch is in the position to which it has been shifted by the hand-lever, the loaderblock has been carried over the jack for the delivery of the contained nails thereto, the friction 262 again slipping at the end of this travel until the movement is reversed. Turning with the member 284 is a cam 290, acting upon the lever 196 which is connected to the separator-disks 180. As soon as the member 284 begins to turn, the cam allows the rod 194 to be elevated to produce the delivering oscillation of the disks.

In preparation for the use of this naildistributor, if the length of the nails is to be changed, the raceways are emptied into the drum by tilting back the support 124 upon its pivot; the drum is removed from its spindle; the charge of nails turned out; the drum refilled; and the support restored to its initial position. In the movement of the dis tributor in both directions, the springs 165 take a considerable portion of the weight, and reduce the shock when the limits of travel are reached. The handle 220 is set for the new nail-length, this locating the abutments 200 by a compound movement, which provides both for the desired point of contact of the nails with the abutments and the space in which said nails are to turn. The handle 172 is adjusted to set the stops 166 for the number of nails to be used in the heeling operation. and a frame 232 is provided, having a disposition of tubes which will correctly deliver the nails in accordance with the arrangement of passages in the loader-block and jack-top being used. It will be assumed that the block has received a load of nails. WVhen the operator moves the lever 280 to the left (Fig. 7), which he may do conveniently when he removes the heeled shoe from the jack, the clutch member 278 is carried away from the gear 264, which has been holding the loader-block in its receiving position, and transfers it to engagement with the gear 266, which causes the forward delivering travel. As soon as the loader-block starts upon this movement, it releases the lever 254, so that the shutter 250 is closed by its spring 252. Rotation of the cam 290 with the member 284 causes the separator-disks 180 to oscillate, and a fresh load of nails is released, reversed by the abutments 200, and allowed to fall through the tubes 228 and 230 upon the now closed shutter 250. lVhen the loader-block arrives at the jack, the contact-portion of its latch lad the nails fall into the jack-top-passages and are received upon the ends of the drivers. As the operator has immediately released the lever .280 after actuating it, the completion of the rotation of member 28% permits the lever to be moved to its normal position by the spring 282. This rte-establishes the engagement of the clutch member 2T8 with the gear 264-, restoring the loader-block to its receiving position. Here, the shutter 250 is opened by contact of the loader-block with the lever 25-.l, and the nails which it has supported are allowed to fall into the loaderbiock-openings. the shutter 2H having been closed during the return of the block. The apparatus is now ready for the succeeding operation.

Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a shoe machine, a work-support, a pressure member co-operating therewith, means arranged to more the support and pressure member relatively to initiate pressure upon the work, and means controlled by said movement for producing a further movement dependent in its extent upon the initial pressure-moveinent.

2.' In a shoe machine, a work-support, a pressure member co-operating therewith, means arranged to move the support and pressure member relatively to initiate pressure upon the work, and means including -I'iuid mechanism controlled by said movement for producing a further pressureniovement dependent in its extent upon the initial pressure-movcment.

3. In a shoe machine, a work-support, a pressure member co-operating therewith, means arranged to move the support and pressure member relatively to initiate pressure upon the work, means cont-rolled by said movement for applying pressure to the work, and means arranged to vary the pressureindependently of that under control of the initial pressure movement.

l. In a shoe machine, a work-support, a pressure znem 'ier co-opcrating with the support, means arranged to move the member to measure the work, and means acting after the measurement for moving the member toward the support to an extent determined by srch measurement.

In a shoe machine. a work-support, a pressure member co-opcrating wiih the support, means arranged to more be member to measure the worl-t. and means for moving the member towr-ird the support that "h a distance in proportion to the thicl-tness the work. I

6. In a heel-attaching machine, a shoesupport, an abutment member movable to apply preliminary pressure to a heel upon the support. and means controlled by the member for applying to the work a clamping movement varyingwith the height of theheel. I 7. In a heelingmachine, a jack, nail-drive ers operating therein, a movable abutment member co-operating with the jack, means arranged to move the abutment toward and from the jack, and meanscontrolled by said movement for further moving the abutment member toward the jack.

8. In a heeling machine, a jack, nail-drivers operating therein, a movable abutment member co-operating with the jack, means arranged to move the abutment toward and from the jack, and means including a valve having an element movable by said moving means for further moving the abutment member toward the jack.

9. In a heeling machine, a jack, nail-drivers operating therein, a movable abutment member co-operating with the jack, means arranged to move the abutment toward and from the jack, means including a valve controlled by said movement for further moving the abutment member'toward the jack,

and means arranged tovary'the normal posit-ion of the valve.

' 10. The combination with a work-support, of a movable-pressure member co-operating with the support, operator-governed means for moving the member, a device connected to the operator-governed means for movement thereby, power mechanism, and connections between the power mechanism and pressure member, said device being included 1 in the connections.

' 11. The combination with a work-support, of a movable pressure member co-operating with the support, operator-governed means for moving the member, a device connected to the operator-governed means for move ment thereby, means arranged to change the normal position of the device, power mechanism, and connections between the power mechanism and pressure member, said device being included in the connections.

12. The combination with a worksupport, of amovable pressure member co-operatingwith the support, operator-governed means for moving the member, a valve movable by the operator-governed means, power mechanism, and fluid mechanism connecting the power mechanism and pressure member and controlled by'the valve.

13. The combination with a work-support, of a movable pressure member co-operating with the support, operator-governed means for moving the member, a valve movable by the operator-governed means, adjustable connections between said valve and means, power mechanism, and'fiuid mechanism connecting the power mechanism and pressure member and controlled by the valve.

14. The combination with-a work-support, of a co-operating abutment, connections to the. abutment arranged to move it toward and from the support, co-operating fluidcontaining members one of which is connected to the abutment, power means joined to another member, and means for controlling the flow of tluid between the members.

15. The combination with a work-support,

of a co-operating abutment, connections to the abutment arranged to move it toward and from the support, telescoping fluid-contain ing members one of which is connected to the abutment, power means joined to another of the members, and means actuated by the abutment-moving means for controlling the flow of fluid between the members.

16. The combination with awor ;-support, of a cooperating abutment, connections to the abutment arrai'iged to move it toward and from the support, telescoping fluid-com taining members one of which is connected to the abutment, power means joined to another of the members, a valve controlling the flow of fluid between the members, a cam acting upon the valve, and connections to the cam from the abutment-moving means.

17. The combination with a work-support, of a co-operating abutment, connections to the abutment arranged to move it toward and from the support, telescoping fluid-containing members one of which is connected to the abutment, power means join-i d to another of the members, a valve controlling the flow of fluid between the members, a cam acting upon the valve, connections to the cam from the abutment-moving means, and means arranged to vary the effective length of the connections.

18. The combination with a work-support, of a co-operating pressure member, a cylinder connected to the-pressure member, a hollow plunger operating in the cylinder, power mechanism connected to the plunger, and means for controlling the passage of fluid between the plunger and cylinder.

19. The combination with a work-support, of a co-operating pressure member, a cylinder connected to the pressure member, a hollow plunger operating in the cylinder, power mechanism connected to the plunger, a valve between the plunger and cylinder, and actuating connections between the valve and pressure member.

20. The combination with a work-support, of a co-operating pressure member, acylinder connected to the pressure member, a hollow plunger operating in the cylinder, power mechanism connected to the plunger, a valve between the plunger and cylinder, actuating connections between the valve and pressure member, and means included in the connections for changing the relation of the valve to the plunger.

21. In a heel-attaching machine, the combination with a jack, of a co-operating abutinent, a lever joined to the abutment for actuation by the operator, :1 cylinder carried by the abutment, a hollow plunger operating in the cylinder, power mechanism, connections to the power mechanism for moving the plunger, a. valve controlling the flow of fluid between the cylinder and plunger, and connections between the valve and lever.

22. In a heel-attaching machine, the combination with a jack, of a co-operating abutment, a lever joined to the abutment ior actuation by the operator, :1 cylinder carried by the abutment, a. hollow plunger operating in the cylinder, power mechanism, connections to the power mechanism for moving the plunger, a valve having a portion extending through the plunger, a spring interposed between said plunger and valve and arranged to urge the valve toward the plunger, and means arranged to move the valve from the plunger.

In a heel-attaching machine, the combination with a jack, of a cooperating abutment, a lever joined to the abutment for actuation by the operator, a cylinder carried bv the abutment, a hollow plunger operating in cylinder, power mechanism, connections to the power mechanism for moving the plunger, a valve having a port-ion extending through tl e plunger, a spring interposed between said plunger and valve, a cam arranged to move the valve against the force of the spring, and connections between the cam and lover.

in a heel-attaching machine, the combination with a jack, of a co-operat-ing abutment, a lever joined to the -abutment for actu- 1 ation by the operator, a cylinder carried by the abutment, a hollow plunger operating in the cylinder, power mechanism, connections to the power mechanism for moving the plunger, a valve having a portion extending through ti o plunger, :1 spring interposed between said plunger and valve, a cam arranged to move the valve against the force of the spring, a rod connecting the cam and lever, and means rranged to vary the effective length of the rod.

The method of operating upon shoeparts. which consists in bringin such parts together, measuring the thickness of the assembled parts, clamping the parts as determined by the measurement, and operating upon the clamped parts.

26. The method of nailing heels to shoes, which consists in br ing a heel and the heelseat of a shoe toget'l. measuring the height of the heel, pressing th heel against he heelseat as determined by said height, and inserting attaching nails while the work is under such pressure.

27. The method of nailing heels to shoes, which consists in bringing a heel and the heel-seat of a shoe together. measuring the height of the heel, pressing the heel against the heel-seat by movement through a distance proportional to said height, and inserting attaching nails while the work is under such pressure.

28. In a heel-attaching machine, nail-inserting mechanism including reciprocatory drivers, and means for imparting to the drivers an inserting movement, the velocity of which is substantially as great at the end of the stroke as at the beginning.

29. In a heel-attaching machine, nail-inserting mechanism including reciprocatory drivers, a lever to which the drivers are connected, and a cam acting upon the lever to impart a substantially uniform velocity to the drivers throughout their insertin stroke.

30. In a heel-attaching mechine, a frame, a j ack-base carried by the frame, a jack mounted upon the base, drivers operating in the jack, nail-transferring mechanism delivering to the jack, and means arranged to vary the vertical position of the jack upon the base.

31. In a heel-attaching machine, a frame, a jack-base fixed against movement upon the frame, a jack mounted upon the base, drivers operating in the ack. nail-transferring mechanism delivering to the jack, means arranged to vary the vertical position of the jack upon the base, and means arranged to vary the extent of movement of the drivers.

32. In a heel-attaching machine, a frame, a jack-base fixed against movement upon the frame, a jack arranged to slide vertically upon the base, a sleeve threaded upon the base and contacting with the jack, drivers mounted to reciprocate in the jack, an actuating member for the drivers movable in the base, and means arranged to vary the extent of movement of the drivers by the actuating member. 7

33. In a heel-attaching machine, a frame, a jack-base fixed against movement upon the frame, a jack arranged to slide vertically upon the base, a sleeve threaded upon the base and contacting with the jack, drivers mounted to reciprocate in the jack, an actuating member for the drivers movable in the base, and'an adjustable contact member interposed between the actuating member and drivers.

In testimony whereof I have signed my name to this specification.

JOHN F. STANDISH.

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