US759589A - Resawing-machine. - Google Patents

Description

No- 759,589. PATENTBD MAY 10, 1904. R. H. BENNER.

RBSAWING MACHINE.

r nrmouzon nun JULY 21. 1902.

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No. 759,589. PATENTED MAY 10, 1904. R. H. BENNER.

RBSAWING MACHINE.

APPLICATION FILED JULY 21, 1002.

no norm. 5 SHEETS-411E131 2.

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No. 759,589. PATENTED'MAY 1O, 1904. R. H. BENNER. RESAWING MACHINE.

APPLIGA'I'ION FILED JULY 21, 1902.

N0 MODEL. 5 SHEETS-SHEET 3- No. 759,589. PATENTED MAY 10, 1904.

\ R. H. BENNER.

RESAWI NG MAOHINE.

APPLIOATION FILED JULY 21. 1902.

no MODEL. 5 SHEETS-SHEET 4 PATENTED MAY 10, 1904.

R. H. BBNNER. RESAWING MACHINE.

APPLIUATION FILED JULY 21, 1902;

5 SHEETS-SEEET 5.

N0 MODEL.

Patented. May 10, 1904.

PATENT OFFICE.

REUBEN H. BENNER, OF CINCINNATI, OHIO.

RESAWlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 759,589, dated. May 10, 1904:.

Application filed July 21, 1902. Serial No. 116,413. (No model.)

To all whom it may concern:

Be it known that I, REUBEN H. BENNER, a citizen of the United States of America, and a resident of Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Resawing- Machines, of which the following is a specification.

This invention relates to certain improvements in resaw-machines such as are especially designed for use in rcsawing boards and lumber into thin sheets or portions; and the object of the invention is to provide a machine of this general character of a simple and inexpensive nature and of a strong, compact, and durable structure having an improved arrangement of saws by means of which the boards or lumber may be cut into strips or sheets of uniform and even thickness in a rapid manner and without the exercise of any particular skill upon the part of the attendant, so that an economy is effected not alone in the cost of operation of the machine, but also in the product, by reason of the uniformity of the sheets or portions into which the material is sawed and also by reason of the material being sawed into a greater number of sheets or strips than has been hitherto the custom.

The invention consists in certain novel features of the construction and combinations and arrangements of the several parts of the improved resawing-machine, whereby certain important advantages are attained and the device is made simpler, cheaper, and otherwise better adapted and more convenient for use, all as will be hereinafter fully set forth.

The novel features of the invention will be carefully defined in the claims.

In the accompanying drawings, which serve to illustrate my improvements, Figure 1 is a side elevation showing the improved resawing-machine; and Fig. 2 is a front elevation of the same, showing the feeding devices for the same. Fig. 3 is a plan view of the improved resawing-machine. Fig. 4 is a fragmentary sectional detail view showing certain features of the mechanism for adjusting the saws toward each other. Fig. 5 is a central section taken vertically through the improved resaWing-machine in a plane between the two saws thereof and showing the means for sup porting the central sheet or portion of the board or other piece of lumber being cut. Fig. 6 is a sectional detail view taken in the plane indicated by the line a a in Fig. 5 and showing certain features of the means for pressing the saws toward each other. Fi 7 is an enlarged partial section taken horizontally through the machine in the plane inclicated by the line 5 Z) in Fig. 1 and showing the arrangement of the guides for receiving and guiding the inner and outer strips or sheets after such strips or sheets are cut by the saws. Fig. 8 is a partial rear elevation showing the means illustrated in Fig. 7, and Fig. 9 is an enlarged detail sectional view taken through the supporting and guiding means for the inner sheet or strip of sawed material in the plane indicated by the line 0 0 in Fig. 7.

As herein shown, the improved resawingmachine is constructed with a base-plate 1 of suitable form and strength, upon which the several shaft-bearings and frame parts are socured by means of bolts or otherwise in a well-known way. At the front of the baseplate 1, which is made in a general rectangular form, is erected a feed-table 2, having at its upper part slides 3 3, mounted for movement .toward and away from each other in a horizontal direction, and having frames 4 4 held upon vertical pivot shafts or studs 36,

the lower ends of which have bearings in and are extended beneath the slides 3 3, as shown in Fig. 2, and the upper ends of which have bearings in the bent ends of upwardly-extended brackets or arms 3 upon the slides.

The frames 4 4: have upper and lower arms extended in parallel directions and upon opposite sides of the respective shafts 36, and

the oppositely-directed arms of each frame their upper bearings in the arms or brackets 3, and the extended ends of said shafts or studs 36 beneath the slides 3 3 carry bevel gear-wheels 35, meshing with other bevelgears 34, movable endwise along a horizontally-extended shaft 33, journaled in bearings upon the lower portion of the feed-table2, as shown in Fig. 2, and provided at one side of said table with gearing 32, whereby it is driven from a horizontally-extended shaft journaled beneath it and provided witha pulley or band wheel 31, adapted to receive a belt, by means of which power may be transmitted for moving the above-described parts.

By means of the operative connections or gearing above described rotatory movement is imparted to the feed-rollers 5 5, so that a board or other piece of lumber presented at the bight of the forward rollers will be drawn by such rotatory movement through between the rollers and into the machine, the rollers 5v pressing upon the opposite sides of such board in a well-known way. Since the slides 3.3 on which the rollers 5 are held are movable toward and away from each other for permitting the rollers to accommodate themselves to inequalities and unevennesses in the boards or lumber, I also mount the gears 34 34: for movement endwise upon the shaft 33 and provide said gears with bosses 37 37, having annular grooves in which are engaged downwardly-extended arms 38, carried. upon the slides 3, as, shown in Fig. 2. By this means when the'slides are moved relatively one to the other the gearing by-means of which rotatory movement is imparted to the pressure-rollers 5 is also held in operation.

One of the slides 3 is preferably held against movement upon the feed-table 2; but the other slide is left free for movement to accommodate the pressure-rollers for differences in thickness of the material being operated upon, and for holding the pressure-rollers upon the movable slide elastically pressed toward those of the other slide 3 I prefer to provide an arrangement of levers 6 6, pivotally connected and having end portions adapted to bear upon the outer sides of the upwardly-extended arms or brackets 3 at points about opposite the central portions of the rollers 5 5, thelevers 6 6 being connected by a rod or shaft 7, one end of which is headed and passed through an opening in one lever, with its head engaged upon the outer side thereof, and the other end of which is passed through an opening in the other lever and is screw-threaded to receive a nut or hand-wheel 8, a spring 9 being held .upon the threaded end of the shaft or rod between the .nut or hand-wheel 8 and the outer side of the adjacent lever 6 in such a way that its tension is exerted to cause the levers to press the movable slide 3 toward the stationary slide.

10 indicates a support for the boards or lumber being passed or fed into the machine over the feed-table 2, and this support 10 is arranged horizontally across the central part of the machine and extends from front to rear thereof with its upper surface in position to receive the lower edges of the boards or lumber while being passed through the machine and sawed into sheets or portions. The front end of the support 10 is extended across the feed-table 2 between the slides 3 3, with its forward extremity extended in front of the feed-table to receive the ends of the boards presented at the bight of the forward pressure-rollers 5 5. The rear end of the support 10 is rested at the rear part of the machine upon an upright 10*, extended up from the base-plate 1, as shown in Figs. 1 and 5.

11 11 indicate two similar saw shafts or arbors mounted to turn in bearings and extended transversely of the machine atapoint about central between the feed-table 2 and the rear support 10. The saw shafts or arbors 11 11 are not alined with each other, but are extended at angles to each other, and their inner ends are adjacent, but slightly separated from each other. The respective saw shafts or arbors are arranged at similarangles with a line extended centrally from front to rear of the resawing-machine between the two sets of pressure-rollers 5 5 and are also arranged at similar or equal angles to the horizontal, the angular arrangement of the parts being such that the inner adjacent ends of the saw shafts or arbors are farther from the feed-table at the front of the machine than are the outer ends, which latter are adjacent to the opposite sides of the base-plate 1, and that the inner adjacent ends of the saw shafts or arbors are nearer to the base-plate 1 than are the higher outer ends of said shafts or arbors at the sides of the said base-plate.

The saw shafts or arbors 11 11 are mounted for independent rotatory movement in bearings upon the base-plate 1, each of the said bearings being formed of a pillow-block 12, as shown in Figs-1 and3, the pedestal of each block being held adjustably upon the inclined rear surface ofan angular pillow-support 13, extended up above the base-plate 1, with its inclined rear surface, upon which the pillowblock 12 is adjustably held, arranged at an angle of about forty-five degrees to the vertical. Although this angle of forty-five degrees is well adapted for the purposes which the described construction subserves and which will be hereinafter pointed out, I do not desire to be understood as limiting myself to the arrangement of the pillow-supports at this angle exclusively. For the adjustment of the pillow-blocks 12 upon the pillow-supports 13 I provide thersupports 13 with lugs 13f, having adjusting-screws 12 engaged beneath the blocks 12, by turning which screws the elevation of the blocks 12 may be changed in order to vary the angles at which the saw shafts or arbors 11 11 are arranged. For similar purposes the pillow-supports 13 are also ad justably mounted upon the base-plate 1, being capable of adjustment by means of screws 1 toward either the front or the rear of the machine; By such adjustment of the pillowblocks and pillow-supports it will be evident that a certain extent of pivotal movement is imparted. to the shafts or arbors 11 11, which pivotal movement tends to bring said shafts or arbors more or less nearly into axial alinement, whereby certain portions of the saws carried on the adjacent ends of the shafts or arbors are caused to more or less closely approach each other, as and for purposes which will be more fully hereinafter explained.

Each of the two saw shafts or arbors 11 11 has two of the bearings above described, and between the two bearings of each shaft or arbor is mounted a band wheel or pulley 14, adapted to receive a belt or band, by means of which the corresponding shaft or arbor may be driven from a suitable source of power. On the inner end of each saw shaft or arbor 11 is also mounted a hub or collar 15, having a marginal annular projection or flange 15 of reduced thickness, which flange or projection is provided with a countersunk edge portion 16, extended around it and adapted to receive the saw-blade, which, as herein shown, is formed of a series of segmentshaped parts or sections 17 17, held to said countersunk portion of the flange by means of screws or the like, as shown at 19, the adjacent edges of the segments or parts 17 being separated byspaces 18 18, extended radially with respect to the structure, as clearly shown in Figs. 1 and 5. The outer curved edges of. the segments 17 are curved concentrically with respect to the axis of the shaft or arbor 11 and are toothed in a well-known way to produce a serratedcutting-surface.

The saw shafts or arbors 11 11 are arranged at a lower level than the support 10 for the material to be cut, and said support has a central opening formed longitudinally in it, in which central opening the saws formed of the flanged collars 15 and segments 17 are arranged toturn. By this central opening the opposite side portions of the support 10 are caused to project along the opposite outer sides of the saws, as shown at 10" 10" on the drawings, in position to support the lower edges of the two outer sheets into which the material passed through the machine is cut. Between the two saws formed of the collars 15 and segments 17 is arranged another support 28, the rear end of which is rested upon the support 1O at the rear part of the machine, while the forward end thereof is made rounded to receive the lower edge of the central sheet into which the material passed through the machine is cut, said forward end being supported by means of a downwardlyextended dlagonal brace 29, as shown in Fig. 5. By the arrangement of the saw shafts or arbors 11 at a lower level than the support 10, as above described, the material to be-cut by the saws is fed to said saws at the upper quadrant of the forward half of the circumference of the saws, and by the angular arrangement of the saw shafts or arbors, as above set forth, it is at this point that the serrated or toothed cutting edges of the saws are caused to most nearly approach each other, the proportions of the several parts and their adjustments being preferably so regulated that the more closely adjacent portions of the two saws are caused to operate at about the central parts of the widths of the boards or other pieces of lumber being fed to the machine. Since from said more closely adjacent portions theseparation of the cutting edges of the two saws will be gradually in creased, it will be evident that by the stated arrangement and adjustment of the parts the three sheets or portions into which the material is cut by the improved resawing-machine will vary in thickness gradually upon each side of the centers of theirwidths; but since the angularity of the saw-blades to the vertical is but slight it will be evident that such variation will also be very slight and will not be detrimental to the use of the resawed material, since if such variation in thickness be objectionable it may be remedied by planing the surfaces of the sheets into which the material is cut.

Between the pressure-rollers 5 5 at the feedtable 2 and the operative portions of the cutting edges of the two saws are arranged two series of guide-rollers 42 42, mounted on vertical axes upon plates 41 41 and adapted to engage upon opposite sides of the material being fed into the machine to hold such material fromsidewise or lateral movement while the saws are operating, so that the sheets or portions into which such material is being cut Eshallbe of uniform thicknesses throughout their entire-lengths. To conform to the curvatures of the cutting edges of the saws, the guide-rollers 42 are made in graduated lengths and are arranged to bear upon the material at substantially all points between the feed-rollers 5 5 and the cutting edges of the saws.

This arrangemeutof the guide-rollers between the'feed-rollers and the cutting edges of the saws serves to hold the material being sawed against'all lateral movement due to warping of the material or other causes and prevents variations in the thicknesses of the sawed sheets or portions.

Adjacent to the forward operative portions of the cutting edges of the two saws and upon the outer sides of the respective saws are arranged upwardly-extended curved pieces or cams 47, as shown in Figs. 1 and 7. These curved pieces or earns 47 are supported upon the side portions 10" of the part 10 and are arranged to stand closely adjacent to but out of frictional contact with the outer surfaces of the segments 17 of the saws, with their for ward convexed edges adapted to enter into the kerfs produced by the cutting edges of the saws in the material being sawed and between the two outer and one inner sheets or strips of the sawed material, so that the two outer sheets or portions of the sawed material are forced or wedged outward away from the outer surfaces of the saws and are held from frictional contact with said outer sides of the saws, as will be readily understood.

Beyond the pieces or cams 47 are arranged stops 48 48, also secured upon the side portions 10 of the support 10 and extended up" above the upper surfaces of said side portion in position to be engaged by the outer sheets or portions of the sawed material when said outer sheets or portions are forced or wedged apart and away from the sides of the saws. stops 48 48 serve to hold the said outer sheets or portions of the sawed material from being forced outward sufficiently to fall off the side portion 10 of the support 10, and said stops are preferably extended, as shown in Figs. 1', 3, and 7, to the rear ends of said side portions 10*. Inside of the stops 48 48 and behind the cams or curved pieces 47 are arranged guards 49 49, also secured upon and extended above the upper surfaces of the side portions 10 of support 10, with their inner surfaces closely adjacent to the sides of the saws and their outer surfaces parallel with but spaced apart from and inside of the said stops 48. Whereby between said guards 49 and stops 48 channels or grooves50 50 are produced, extended down to the side portions of the support 10, so that the lower edges of the outer sheets or portions of the sawed material may pass freely over the side portions 10? of the support, being held by the stops 48 from lat-' eral and outward displacement from said support and by the inner guards 49 49 from frictional contact with the side surfaces of the saws. By this arrangement it will be evident that the two outer sheets or portions of the sawed material are engaged by the cams and forced outward out of frictional contact with the saws immediately after the saws have cut into the material, so that friction is lessened and the power required to operate the machine is reduced, and also strains are taken off the thin segments of the saws. After said outer sheets or portions of the sawed material have passed the cams 47 they are held and guided on the support by the stops 48 and are also held by the guards 49 out of frictional contact with the sides of the saws, so that damage to the material is also prevented such as would be caused by contact of the sawed sheets with the sides of the rapidly-rotating saws.

The material fed over the table 2 to the improved resawing-machine will be cut by the two saws into two outer and one inner sheets or portions, the two outer sheets or portions The of the sawed material being carried along over the side portions of the support 10 outside of the saws, as above described, while theinner sheet or portion of thesawed material will be carried along'between the two saws with its lower edge rested upon the inner supportingpiece 28 between the saws and alined horizontally with the outer portions 10 of the support 10, and since the upper quadrants of the rear halves of the circumferences of the two saws will of course be farther separated at their cutting edges than the forward operative portions of the said cutting edges it will be evident that so long as the inner sheet or portion of the sawed material passes in a straight line and centrally between the two saws the cutting edges of these latter will in no way chafe and wear upon the side surfaces of the said inner sheet or portion of the sawed material, so that no damage maybe done to said inner sheet or portion.

To hold the inner sheet or portion of the sawed material centrally located during its passage betweenthe two saws, I provide the inner-supporting-piece 28 with upwardly-extended clamping strips or parts 51 51, secured to its opposite sides, with edge portions 52 extended up above the top surface of said inner supporting-piece, as shown in Fig. 9, said upwardly-extended edge portions 52 being bent toward each other in such a way as to cause themto grip or bind upon the sides of the said inner sheet or portion of the sawed material when the latter is engaged between the extended portions. At the forward end of the supporting-piece 28 the front extremities '53 of the said upwardly-extended portions of the clamping-strips or parts are bent away from each other, as shown in Fig. 7, so that the end of the inner sheet or strip of sawed-material will more freely and readily enter between the clamping strips. The upper edges of the bent and upwardly-extended portions 52 of the clamping strips or parts are bent over, as shown at 54, to produce lips adapted to bite or bind upon the'sides of the innersheet of the sawed material, so that said sheet may be more securely held by the clamping strips or parts. The clamping strips or' parts constructed and arranged as above described also serve to hold the inner sheet or portion of the sawed material against upward movement, whereby it might be disengaged from the clamping-strips, and in View of this function the machine is better adapted for use in sawing short lengths of material, since the short inner sheets or portions of sawed material are held against catching or binding upon each other at their ends during their passage be tween the saws.

At the rear or discharge end of the machine guide-plates 43 43 are arranged supported upon the side portions 10 of the support 10 and alined with the rear portions of the cutting edges of the saws above said support and between which the inner sheet or portion of the sawed material is to be discharged from between the saws in the operation of the machine. The guide-plates 43 43 are extended above the rear portions of the saws at the discharge or rear side of the machine, and the lower edges of said plates are curved to conform to the curvatures of the cutting edges of the saws, so that the plates may be arranged as closely adjacent as possible to said cutting edges. One of the plates 43 has a foot which is held by screws 46 to one of the side portions 10 of the support 10, and the other guide-plate is mounted for movement upon pins 45, extended from the fixed plate 43, said movable plate being adapted for movement upon said pins toward and away from the fixed plate. The pins 45 carry springs 45, adapted to press upon the outer side of the movable plate 43, so that said movable plate may be elastically pressed toward the fixed plate. To prevent the movable plate from being pressed too near the fixed plate, setscrews are provided, as shown at 44, said. screws being carried by the movable plate, with their tips adapted for engagement upon the fixed plate, as shown in Figs. 7 and 8 of the drawings.

The guide-plates 43, being alined with the cutting edges of the saws at the rear parts of said saws, serve to protect the inner sheet or portion of the sawed material against damage from contact with said cutting edges upon emerging from between the saws and by means of the clamping-strips 51 upon the supporting-piece 28. The said inner sheet or portion of the sawed material is not only held central between the two saws, but is also guided and entered between the two plates 43 43 into proper engagement between said plates. Since the said guide-plates are extended up above the support 10 to a height greater than the width of the widest material which the improved machine is adapted to saw, it will be evident that the inner sheet or portion of the sawed material will be held at all points in its height between said guide-plates, and its upper portion will also be held against lateral or sidewise movement, so as to be protected against damage by the teeth of the rap idly-rotating saws.

By means of the set-screws 44 the plates may be spaced apart'to adapt them for receiving and holding inner sheets or portions of sawed material of different thicknesses, and the arrangement of springs and guide-pins 45 permits the movable plate 43 to press elastically upon the said inner sheet or portion of sawed material during its passage between the two guide-plates, so that the said inner sheet or portion is prevented from becoming clogged or wedged between the plates.

The saw shafts or arbors 11 11 are preferably left free for endwise movement in their bearings upon the base-plate 1, and in order to permit of holding the saws with their cutting edges out of contact I provide one ofthe shafts or arbors 11 with a bore 24 at its inner end, in which bore, as shown in Fig. 4, isarranged for endwise movement a pin or rod 23, one end, 25, of which is extended beyond the end of the shaft or arbor 11 into contact with the adjacent end of the other saw shaft or arbor. 26 indicates a wedge-shaped block or part carried by the shaft 11, in which the bore 24 is produced, and said block or part has its central portion extended through an opening in the pin or red 23, with its inclined surface engaged at one end of said opening in such a way that when the block or part 26 is moved in a direction transverse with relation to the shaft or arbor 11 endwise movement will be imparted to the pin orred 23 to force the shafts or arbors 11 away from each other. For convenient movement and adjustment of the wedge-shaped part or block 26 the opposite ends thereof are made to project slightly beyond the sides of the shaft or arbor 11 and are provided with nuts 27, which when turned serve to move said block or part for the adjustment of the pin or red 23.

For holding the saws against movement away from each other I preferably provide two pressure-rollers 20 20, carried on slides 21, adjustably held by screws 22 or the like to plates held on the pillow-supports 13 of the saw shafts or arbors, as shown in Figs. 1, 3, and 6. These rollers 20 are set to press on the outer sides of the saws and travel over said saws in paths concentric with the axes of rotation of the parts and are located at points substantially in alinement with the centers of the operative portions of the cutting edges and the centers of the saws, so that the saws are held pressed toward each other at the points at which their cutting edges most nearly approach each other.

In the operation of the machine the material fed over the feed-table and between the rollers 5 is drawn through between said rollers, and its end is presented to the two saws, being held against sidewise movement at all points between the rollers 5 and the cutting edges of the saws by the vertically-arranged guiderollers. The two saws operating on the material serve to cut the same into three sheets or portions, an inner portion, which is passed between the two saws, and two outer portions, which are passed along upon opposite sides of the saws. Owing to the angular arrangement of the two saws, it will be evident that the rear portions of the cutting edges thereof will be prevented from engagement with the sides of the inner sheet or portion of sawed material which will be engaged by the clamping-strips 51 and guide-plates 43, and thereby held against sidewise movement, and owing to the arrangement of the cams and guards 49 the outer sheets of sawed material will be separated and prevented from bearing upon the sides of the saws.

Since the saws are capable of adjustment toward and away from each other,it will be evident that the machine is capable of being set to saw materials of different thicknesses and for the production from such materials of sheets or portions of different thicknesses. Also by such adjusting means compensation may be effected for any reduction in diameter of the saws which would otherwise, owing to the angular arrangement of the saw shafts or arbors, result in the production of sheets or sawed portions of different thicknesses.

In the use of the improved resawing-machine constructed according to my invention the materials to be sawed are first planed upon two sides, after which they are passed through the resawing-machine and are thereby divided into three sheets or portions, the two outer sheets or portions being then each dressed upon its outer surface, so as to be ready for any ordinary use, while the inner sheet or sawed portion has two rough sides and must be dressed upon one side before being used. Since the sheets or portions into whichthe material is cut by means of the improved resawing-machine are of substantially uniform thickness throughout their entire lengths, there is little or no waste due to variations in the thickness of the sawed material, and a very important economy is effected in the time and labor consumed, owing to the fact that the two outer sheets require no further planing, but are ready for use after being cut by the resawing-machine.

The segmental construction of the saws also affords an important advantage, since cracking or warping of the blades is thereby in a great measure avoided and accidents are pre Vented. Also by reason of this structure of the saws the blades are permitted to be made of less thickness than has hitherto been customary in circular saws, so that the allowance for out is lessened, and three sheets or sawed portions may be cut from material which with other resawing-machinesconstructed in other ways could hitherto be made to produce but two sheets or sawed portions, whereby an economy of about one-half is efiected both in time and in material.

From the above description it will be seen that the improved resawing-machine is of a very simple and inexpensive nature and is especially well adapted for use, and it will also be obvious from the above description that the machine is capable of some modification without material departure from the principles and spirit of the invention, and for this reason I do not wish to be understood as limiting myself to the precise form and arrangement of the several parts of the device as herein set forth.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

1. In a resawing-machine, the combination of two saws arranged side by side and provided with driving mechanism, feeding devices comprising driven feed-rollers and two series of guide-rollers arranged upon vertical axes in planes passing between the feed-rollers and the operative portions of the cutting edges of the saws, the guide-rollers of each series being arranged to bear upon one side of the material fed to the saws and being made in graduated lengths, substantially as set forth.

2. In a resawing-machine, the combination of two saws arranged side by side and provided with driving mechanism and two series of guide-rollers arranged upon vertical axes and arranged adjacent to the operative portions of the cutting edges of the saws, said two series of rollers being spaced apart and adapted to receive between them materials to be sawed and the rollers of each series being graduated in height and being arranged to conform to the curved-cutting edges of the saws, substantially as set forth.

3. A resawing-machine comprising a plurality of saws arranged side by side, saw shafts or arbors whereonsaid saws are mounted, said shafts or arbors being mounted for independent turning movement and being also arranged for movement toward each other, means carried by one arbor and having engagement with the other arbor for forcing the arbors away from each other and means for moving the arbors toward each other, substantially as set forth.

V 4. A resawing-machine comprising a plurality of saws arranged side by side, saw shafts or arbors whereon said saws are mounted, said shafts or arbors being mounted for independent turning movement and being also arranged for movement toward each other, means adjustabl y held on one arbor and having engagement with the other arbor for forcing the arbors away from each other and adjustable means for moving the arbors toward each other, substantially as set forth.

5. A resawing-machine comprising a plurality of saws arranged side by side, ind ependently-rotatable saw shafts or arbors arranged for movement toward and away from each other and whereon said saws are held, the arbors being arranged with ends adjacent to each other and one arbor being provided with a bore, a pin movable in said bore with an end portion extended across the space between the ends of the arbors and engaged with the other arbor, a wedge-shaped part engaged with said pin and held on the arbor wherein the pin is carried and means for moving the arbors toward each other, substantially as set forth.

6. A resawing-machine comprising a plurality of saws arranged side by side, independently-rotatable saw shafts or arbors arranged for movement toward and away from each other and whereon said saws are held, the arbors being arranged with ends adjacent to each other means for forcing the arbors away from each other and adjustably-held rollers arranged for engagement upon the outer sides of the saws for pressing said saws toward each other, substantially as set forth.

7. A resawing-machine comprising saws mounted to turn side by side and provided with driving means, a support for material to be sawed having side portions extended along the outer sides of the saws and a device between the saws having parts arranged for clamping engagement with an inner sheet or portion of sawed material passed between the saws, substantially as set forth.

8. A resawing-machine comprising saws mounted to turn side by side and provided with driving means, a supporting-piece for the sawed material extended between the two saws and clamping parts held on said piece with parts extended above the upper face thereof and adapted for engagement upon opposite sides of the inner sheet of sawed material duringits passage between the saws, substantially as set forth.

9. A resawing-machine comprising a frame, a support for materials to be sawed extended on the frame, saw-shafts held to turn below said support and provided with driving means and having circular saws secured upon them, said saw-shafts being extended at angles to each other whereby the cutting edges of the respective saws are caused to more nearly approach each other at one point than at other points, the point of nearest approach of the saws being located above said support and adjacent to one end of the arc of each circular saw subtended by said support.

10. A resawing machine comprising a frame, a support for materials to be sawed extended on the frame, saw-shafts held to turn below said support and provided with driving means and having circular saws secured upon them, said saw-shafts being extended at angles to each other whereby the cutting edges of the respective saws are caused to more nearly approach each other at one point than at other points, the point of nearest approach of the saws being located above the support and adjacent to one end of the are of each circular saw subtended. by said support and means for :feeding materials to be sawed over the support and up to the more closely adjacent portions of the cutting edges of the circular saws.

11. A resawing machine comprising a frame, a support for materials to be sawed extended on the frame, saw-shafts held to turn at other points, the point of nearest approach of the saws being located above the support and adjacent to one end of the arc of each saw subtended by said support, means for feeding materials to be sawed over the support and up to the more closely adjacent portions of the cutting edges of the saws and means located at the opposite end of the subtended arcs of the saws and arranged to engage in the kerfs of the sawed material to hold the sawed portions of the material against sidewise movement and out of contact with the cutting edges of the saws.

12. In a resawing-machine, the combination of a saw provided with driving mechanism and two series of rollers arranged upon vertical axes adjacent to the operative portion of the cutting edge of the saw, said two series of rollers being spaced apart to receive between them materials to be sawed and the rollers of each series being graduated in height and being arranged to conform to the curved cutting edge of the saw.

13. A resawing-machine comprising saws mounted to turn side by side and provided with driving means, a supporting-piece for the sawed material extended between the two saws and clamping parts held on said piece and formed from elastic material with their upper edge portions elevated above said piece and bent toward each other for engagement upon opposite sides of the innersheet of sawed material during its passage between the saws.

14. A resawingmachine comprising saws mounted to turn side by side and provided with driving devices, guide-plates elevated at the rearportions of the saws and alined with the rear portions of the cutting edges thereof, one of said guide-plates being movable toward and away from the other and being provided with elastic means for pressing it toward the other guide-plate.

Signed at Cincinnati, Ohio, this 15th day of July, 1902.

REUBEN H. BENNER. WVitnesses: I

JOHN ELIAS Jones, J. D. THORNE.

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