US1862898A - Machine for operating upon heel blanks - Google Patents

Description

June 14, 1932. R. F. KNIGHT MACHINE FOR OPERATING UPON HEEL BLANKs Filed Au 18, 1950 4 Sheets-Sheet 1 June 14, 1932.

R. F. KNIGHT MACHINE FOR OPERATING UPON HEEL BLANKS Filed Aug. 18, 1930 4 Sheets-Sheet 2 R a H June 14, 1932. R. F. KNIGHT 1,862,898.

MACHINE FOR OPERATING UPON HEEL BLANKS Filed Aug. 18, 1950 4 Sheets-Sheet 5 I -I 54 AM I I: 83 104' I I "I Q I I I I v I I. 1 mil V I 2: HI M I Lit 98 III fi 1.40 If I I II I y I I! II 9 mi 94 142 i 145 IS ,113 O I 96 II II 515' 1 14 118 I 1 5 i I Z68 .Fune-14, 1932. R. F. KNIGHT MACHINE FOR OPERATING UPON HEEL BLANKS- Fild Aug. 18. 1930 4 Sheets-Sheet 4 12 zJMw /A/ VE/VTUE. Flg. 1i,

Patented June 14, 1932 UNITED STATES PATENT OFFICE RALPH F. KNIGHT, OF BEVERLY, MASSACHUSETTS, ASSIGNOB TO UNITE) SHOE I MACHINERY CORPORATION, OF PATEBSON, NEW .J'EBSEY, A CORPORATION OF mzwmnsnv MACHINE FOR OPERATING UPON HEEL BLANKS Application filed August 18, 1930. Serial No. 476,034.

This invention refers to heel making and is illustrated as embodied in a machine for grooving (by which is meant forming the breast surface of) Cuban wood heels. The

' illustrated machine is for grooving that form of Cuban heel in which the breast corners appear straight when viewed from the side.

This type of heel and the first machine for making it are described in United States Let ters Patents No. 1,528,345, granted March 3, 1925, and No. 1,536,691, granted May 5, 1925, on applications of Harley Russ. Prior to these inventions the Cuban heel had a cylindrically concave breast surface, the di- 5 rectrix of the cylinder being substantially vertical. The intersection of this surface with the concave side surfaces formed a line which was convex rearwardly as viewed from the side. The heel of the Russ invention has a breast surface which is convex to the rear in horizontal cross-section, and convex to the front in vertical cross-section (instead of straight, as in the older type of Cuban heel). The vertical curvature is such as to cause the breast corners to appear straight when viewed from the side. This surface was formed in the machine shown in Patent No. 1,536,691 by carrying the heel in a circular path past a cutter, the radius of the circle being the radius of curvature of the vertical cross-section mentioned. Machines of that type and heels produced by them have gone into extensive commercial use.

It is an object of the present invention to provide a machine for making such heels which will increase production without sac-- rificing the accuracy-.01? out that wascharacter1st1c of the Bus machine. To this end I have provided a machine having a heel blank' 40 carrier of the turret type having a plurality of jacks in which heel blanks may be continuously fed past a cutter. In such machines as heretofore constructed the radius of the turret has been equal to the radius of the vertical curve of the heel breast, and a number of turrets have been necessary to manufacture the range of such curvatures necessary in general heel production. Furthermore, even the flattest of the curvatures used 6 requires the turret or rotary table to be so varying the position of the cam roll on the small as tobe capable of accommodating only a small number of jacks, and this prevents taking full advantageof the possibilities of such a machine in quantity production.

The machine herein illustrated as embodying the present invention has a table or turret large enough to accommodate sixteen jacks. It will accommodate two operators, to load the odd and even numbered jacks respectii'ely, and can be run at high speed. The radius of such a table is much greater than any curvature desired on heel breasts, and I produce the proper curvature by moving the cutter away from and toward the work as the work passes it. Thus, an important feature of the invention comprises means for holding a heel blank and for moving it relatively to a cutter and means for mo ving the cutter in a directiontransverse to the path of relative movement of the heel blank and cutter as the heel blank passes the cutter. In the illustrated machine there is a belt of cams'removably fastened to the table and the cams are all coordinated with the respective jacks in the same manner. The cutter is mounted to swing on an axis parallel to the axis of rotation of the table or turret and is controlled by these cams, one after the other.

The illustrated cams are several times as long as the height of a heel blank and by swinging cutter holder I am enabled to select that portion of the cam which shall be operative, and thus to regulate the pitch of the heel breasts to a considerable extent without adjustment of the jacks, or to vary the vertical curvature of the heel breast, as will be seen. The cam belt is removable in order that cams of diiferent types may be used to produce any wide variations in the desired curvature in the heel breast.

Difficulty has been experienced with prior machines of the turret type in that a great deal of time is lost in adjusting the jacks to fit difi'e'rent sizes and styles of heel blanks. With this in view, each jack in the illustrated machine comprises a fixedbut adjustable jaw, a movable jaw and a back gage. The back gages and the extent to which the movable jaws open are adjusted, in each case,

by setting a single member in the machine, so

that individual treatment of each jack is unnecessary.

In the illustrated machine, the back gage members arefreely movable and are held in gaging position by a stationary but adjustable cam, as they come along in succession. They are also actuated by a second cam, which they reach after the work pieces are finished, to act as kick-off or ejecting memers.

Another feature of the invention resides in the construction of one of the jaws of the jacks. Wood heel blanks are sawed from long rectangular bolts of wood which are prepared and stored for long intervals before they are used. During such time they frequently warp out of rectangular crosssection. Heretofore, in order to gage them pro rly to produce a uniform product, it has een necessary to re-surface them before they are used, since the best way to hold them has been found to be to set two perpendicularly intersecting faces into a right dihedral angle in the jack, and if the two faces on the heel blank are not perpendicular, this positioning lacks positiveness. This re-surfacing is expensive and wastes much lumber. In accordance with the present invention, one face of the right dihedral angle in the fixed jaw of each jack is formed with a raised portion near the edge of the angle, or, in another way of looking at it, the right dihedral angle in which the corner of the blank is to be set has one very short side, thus providing a clearance for one face of an obtuse dihedral angle on a heel blank, while the other face lies flat on the long side of the an le in the jack. Thus the heel blanks can e gaged accurately from one face and one edge irrespective of warping.

Another feature of the invention consists in the combination of a work carrier, a breast ooving cutter, a breast channeling cutter dr forming a channel for the reception of the edge of a cover, and means for relatively adjusting them to obtain a desired relation between the breast groove and the channel. In the illustrated machine the channeling tool and the breast grooving tool are controlled by adjacent cams on the cam belt in the same way, and each tool is inde endently adjustable parallel and perpendicu ar to the axis of the table, thus ermltting the groove and the channel to be ormed in any desired relation to each other, and to the heel blank.

These and other features of the invention comprising certain combinations and arrangements of parts will be apparent from the following description of a preferred embediment of the invention shown in the drawings in which Fig. 1 is a plan view;

Fig. 2 is an elevation of the movable jaw 65 and jack;

aaeaaea Fig. 3 is a perspective of the cutter, slotting saw and the neighboring jacks;

Fig. 4 is a detail of the cam;

Fig. 5 is an elevation as seen from the leftin Fig. 1

Fig. 6 shows an untreated blank;

Fig. 7 shows a finished blank;

Fig. 8 shows a triple slotting saw;

Fig. 9 is a detail of the jack control;

Fig. 10 is a plan of a jack;

Fig. 11 is a View similar to that of Fig. 5, taken from a point between the slotting saw and the cutter;

Fig. 12 is a front elevation of a jack; and

Fig. 13 is a detail of a jack lever.

The base 10 of the machine carries a horizontal table 12, which is rotated on a vertical axis by power transmitted through the shaft and pulleys at 14. The table 12 carries sixteen identical jacks equally spaced around its periphery, to carry the heel blanks 16 past a cutter 18 and a channeling saw 20.

Each jack has an adjustable but normally fixed jaw 22 (Fig. 12) rising vertically from a horizontal base plate 24, which is pivoted at 26 on the table 12. The base plate is rabbeted at 28, and a similarly formed clamp dog 30 and screw 32 hold the base 24 in adjusted position. These bases are all adjusted when necessary by a tool resembling a carpenters bevel having an arm arranged to aline the jaw 22 pivotally adjustable on a two-pronged base arm arranged to contact with the edge of the table 12. In the angle between the jaw 22 and the base 24 is a little step 34, shown somewhat exaggeratedly in Fig. 12, which figure also illustrates its purpose. Inasmuch as the blanks 16 often warp after being cut, the problem of accurate gaging has offered some difficulty. The step 34 enables me to gage all blanks 16 from their faces 36 which are in contact with the jaws 22 irrespective of warping. The face 36 is placed flat against the jaw 22 with the edge at 38 resting upon the shelf 34 which provides clearance as shown by the dotted lines in Fi 12 for a face 40 which has warped out o perpendicularity to the face 36. The step is relieved a little, as at 42, to catch dirt.

The blank 16 is clamped against the jaw 22 b a movable jaw 44 mounted on an arm 46 (Tigs. 2 and 10) pivoted on a fixed stud 48 to the table 12 and to an operating arm 50. A spring 52 is seated in the arm and presses against the rear end of the arm 46. A second spring 54 is wound around the pivot 48 and connects the arm 50 to an adjustable collar 55 on the stud 48. The spring tends to separate the arms and serves as a relief to absorb the effects of varying thicknesses of work. The spring 54 tends to open the jack.

The movable jaws 44 comprise, as shown, two separated groups of teeth separated by a leaf spring 56 which normally projects beyond the teeth, but may be easily crushed inward.

5'. t djustable cam 88 g- 62. and should not be closer.

16 is properly gaged just before the cam back toward the teeth. The movable jaws 44 are operated by cam rolls 58 on the ends of the operating arms 50, which run on a cam 60 (Fig. 9) mounted on a central post 62 around which the table 12 turns. The cam 60 is mounted on a slide 64 which is adjustable by a screw 66 toward and from the post 62. The arms 50 are vertically staggered to avoid interference with each other.

The loading position is at the top of Fig. 1. The operator inserts the heel blank 16 between the jaws 22 and 4-1, the spring 56 holding it in position. As the table rotates the cam roll 58 rides up on'the end of the cam 60, turning the arm 50 around the pivot -18 and, through the springs 52, 5-1, throwing the arm 46 around toward the blank 16. The spring 56 is crushed back until the teeth of the jaw 4-1 bite, into the blank. Any variations in height of the blanks are taken care of by the spring 52. The blank is held firmly as it passes the cutter 18 and the saw 20 and the roll 58 then drops off the other end of the cam 60, releasing the blank.

A combined kick-01f and back gage member 68 (Fig. 12) is pivoted at T0 to each jaw 22. This member 68 has a depending gage arm 7 2. and an upwardly extending operating arm 7-1 having a cam roll 76. The roll 76 runs on a cam 78 (Fig. 1) adjustably mounted on arms 80 extending from the 0st 62 by means of holders 81 and threade nuts 82. Springs 84 tend to throw the gage arms 7 2 The cam 7 8 is set so that at the point 86 and from there to its nearer end (Fig. 1) it will hold the arm 72 in exactly the correct back gaging position. The cam 78, from the point 86 to the left in Fig. 1, may be somewhat further from the center post Thus, the blank begins to operate its jack. After the heel blank has passed the cutter 18 and saw 20 the cam roll 76 runs behind a normally fixed which throws the member 68 around its pivot 70 to kick the finished blank off into a barrel.

The arms 46 and 50 of the jacks are arranged to have a total range of movement to accommodate all heights of heels. However in cutting a lot of heels of the same size only a limited range of movement isnecessary, and adjustable mechanism is provided to limit the jack arms to this range. Each arm 50 has a downwardly projecting stud 90,

shown only in Fig. 1, in dotted lines, which engages in a slot 92, in a'circular plate 94,rotatable on the post 62. The slots 92 are wider than the studs 90, thus permitting the desired freedom of movement to clamp a heel blank. In order to adapt the machine to handle heels of substantially varying heights, the plate 91 is rotatable about the axis 62 by means of an adjusting handle 96 and gearing 98 (Fig. 5), operating a threaded shaft 100 engaging a lug 102 on the plate 94. Thus, the positions of the slots 92 can all be adjusted at once to adapt the jacks for high or low heels.

The cutter 18 is mounted on the shaft of a motor 104. The motor is adjustable in a direction transverse to its shaft by means of a rib 106 and groove 108 in a flat supporting table 110 (Fig. 3) by means of a screw 112. The table 110 is pivotally mounted to swing in a horizontal plane on top of a pillar 11-1 which is vertically adjustable in a casting 116 on the machine frame, by means of a screw 118. The table 110 has a bracket 120 with a guideway 122 in it. A slide block 121 is adjustable in the guideway 122 and is fastened in any desired position therein by a screw 126. A cam roll 128 is mounted on an extension of the block 124: in position to cooperate with a belt of cams 130 made in several pieces and bolted to a. rib 132 on the bottom face of the table 12 by a bolt 13-1. and a wedging clamp member 136 (Fig. 1). engaging in wedge slots in the ends of the cam belt sections. The cam belt consists of a series of convex cams, one for each jack, and as the table 12 rotates to carry the heel blanks 16 past the cutter, the cams and the roll 128 cause the cutter to swing out and back (as will be seen later) to cut a breast groove in the heel blank that is convex vertically in the blank. The adjustment in the slideway 122 enables the cam roll to co-operate with any desired portion of the cam 130, which is some six inches long. Thus, the breast groove can be tilted to give more or less pitch in the heel, by this adjustment. The cams may be of any desired shape, and may be made, if desired, of varying curvature along their lengths. Thus the curvature of a vertical cross-section of the heel breast may be controlled, within appropriate limits, by the adjustment just mentioned. In such case the pitch is controlled by adjusting the fixed jaws of the jacks. A brush 138 keeps the cam roll 12S clean and avoids inaccuracy in cutting. The table 110 is swung to carry the cutter toward the work by a Spring 140 operating on a bell crank lever 142 mounted on the member 116 which pulls on a rod 1-1-1 engaging a. downwardly projecting lug 1-16 on the bracket 120. This rod is threaded into a handle 1-18 whereby the tension of the spring 140 can be adjusted. The projection 1-16 is slotted for the rod 1-1-1 so that the rod can be pulled out a little and then dropped out of the slot. thus freeing the table 110 completely. The movement of the cutter toward the work is limited by a stop screw 1&9 on the member 116. engaging the lug 116. This keeps the roll 128 from falling to the bottom of the notches between the cams 130.

The saw 20 is provided to channel the heel blanks for the reception of the edges of a cover. The saw is mounted on a vertical shaft 153 in a swinging arm 154 pivoted on a horizontal shaft at- 156 to swing toward and from the work. The saw is driven by a pulley 158 on the end of the shaft 153. The arm 154 has an ear 160 through which a screw 162 is threaded. The screw 162 rests against an arm 164 pivoted at 166 to the block 124. A spring 168 pulls the arm 154 toward the work and keeps the screw 162 against the arm 164. A cam roll 170.-is mounted on the arm 164 and the distance between the rolls 170 and 128 is preferably equal to the distance on centers between the cams 130. Thus the saw 20 and the cutter 18 will have simultaneously the same type of movement upon the heel blanks in two adjacent jacks, and the slot formed by the saw will be of substantially uniform depth below the heel breast surface 172 (Fig. 7).

Fig. 8 shows a triple saw 174 for making a triple channel as described in United States Letters Patent No. 1,761.359, granted June 3, 1930, upon the application of William H. Nutt. The three saws are separated by their washers 176 extending nearly outtothe points of the teeth, to insure true running of the saws. The saw is vertically adjustable in the arm 154 by means of a clamp collar 177 engaging a barrel 178 surrounding the shaft 153. The depth of cut of the saw is regulated by the screw 162, and that of the cutter by the screw 112.

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

1. In a grooving machine, a cutter, a jack arranged to hold a heel blank, said cutter and said jack being relatively movable to carry the heel blank past the cutter in a direction extending heightwise of the heel blank, and

means for moving the cutter as a whole in a direction transverse to the path of said relative movement of the heel blank and cutter, as the heel blank and cutter move past each other, to form a heel breast surface the lateral corners of which will lie in a plane.

2. In a grooving machine, a cutter, a jack arranged to hold a heel blank and to carry it past the cutter in a direction'extending heightwise of the heel blank, and means for moving the cutter as a whole in a direction transverse to the path of relative movement of the heel blank and cutter, as the heel blank and cutter move past each other.

3. In a grooving machine, a cutter, a jack arranged to hold a. heel blank and to carry it past the cutter in a direction extending heightwise of the heel blank, and a cam for moving the cutter in a direction transverse to the path of relative movement of the heel blank and cutter. as the heel blank and cutter move past each other, to form a heel breast surface the lateral corners of which will lie in a plane.

4. In a heel grooving machine, a cutter mounted to swing around a pivotal axis, a. jack arranged to carry a heel blank past the cutter in a path generally perpendicular to the said pivotal axis, and means for swinging the cutter about its pivotal axis as it operates upon the heel blank, to form a heel breast surface the lateral corners of which will lie in a plane.

' 5. In a heel grooving machine, a cutter mounted to swing around a pivotal axis, to carry the cutter toward and from the work, a jack arranged to carry a heel blank past the cutter in a path generally perpendicular to y the said pivotal axis, means for swinging the cutter about its'pivotal axis as it operates upon the heel blank, and means for adjusting the cutter transversely to its pivotal axis.

6. In a heel grooving machine, a cutter mounted to swing around a. pivotal axis, a jack arranged to carry a heel blank past the cutter in a path generally perpendicular to the said pivotal axis, and a cam for swinging the cutter about its pivotal axis as it operates upon the heel blank, to form a heel breast surface the lateral corners of which will lie in a plane.

7. In a heel grooving machine, an endless carrier provided with a plurality of jack, and a like number of cams arranged in the same relations to the jacks respectively, and a cutter arranged to move freely toward and from the endless carrier and to be governed by the cams in turn to cut more or less deeply into the heels in'the corresponding jacks as the heels are carried past the cutter by the endless carrier, to form a heel breast surface the lateral corners of which will lie in a plane.

8. In a heel grooving machine, a rotary turret provided with a plurality of jacks, and a like number of cams arranged in the same relations to the jacks respectively, and a cutter arranged to move freely toward and from the axis of the turret and to be governed by the cams in turn to cut more or less deeply into the heels in the corresponding jacks as the heels are carried past the cutter by the turret.

9. In a heel grooving machine, a rotary turret having a plurality of jacks and a similar number of cams. each arranged in the same relationship to a corresponding jack, a cutter pivoted to swing toward and from the turret, and arranged to be controlled by the cams as they pass in turn, to move the cutter relatively t heels carried in the corresponding jacks, and means for governing the cutter from selected portions of the cams, to regulate the pitch of the heel.

10. In a heel grooving machine, a rotary turret having a series of jacks, and a series of corresponding cams arranged around its edge, the length of the cams being substantially greater than the height of a heel, a cutter carriage mounted to swing on an axis perpendicular to the plane of the turret, a

. ter carriage each cam as cam contacing member mounted on the cutarranged to govern the swing of the carriage by contacting with the cams in turn, and means for causing the cam contacting member to run over a selected portion of the cutter treats a heel in the corresponding jack.

11. In a heel grooving machine, a' rotary turret having a series of jacks, and aseries of corresponding cams removably arranged around its edge, the length of the cams being substantially greater than the height of a heel, a cutter carriage mounted to swing on an axis perpendicular to the plane .Of h 11- ret, a cam contacting member mounted on the cutter carriage arranged to govern the swing of the carriage by contacting with the cams in turn, and means for causing the cam contacting member to run over a selected portion only of each cam as the cutter treats a heel in the corresponding jack.

12. In a heel grooving machine, a rotary turret, a series of jacks mounted thereon, a corresponding series of cams'mounted peripherally on the turret,- a cutter pivoted to swing toward and from the turret to treat heels in the jacks as they pass the cutter, and acam roll mounted to swing with the cutter and to control its swinging movement by co-operation with the cams as they pass, the cam roll being adjustable in a direction tangential of the turret to bring the cam roll into contact with a selected part of the surface of a cam during the time the cutter is in contact with a heel in the corresponding jack.

13. In a heel grooving machine, a rotary turret, a series of jacks mounted thereon, a corresponding series of cams mounted peripherally on the turret, the curvatures of the cams varying along their lengths, a. cutter pivoted to swing toward and from the turret to treat heels in the j cks as they pass the cutter, and a cam roll mounted to swing with the cutter and to control its swinging movement by co-operation with the cams as they pass, the cam' roll being adjustable in a direction tangential of the turret to bring the cam roll into contact with. a selected partof the surface of a cam during the time the cutter is in contact with a heel in the corresponding jack, to regulate the curvature of the vertical cross-section of the breast surface formed.

14. In a heel grooving machine, a rotary turret, a series of jacks mounted thereon, .a corresponding series of cams mounted peripherally on the turret. the curvatures of the sams varying along their lengths. a cutter pivoted to swing toward and from the turret to treat heels in the jacks as they pass the cutter, a cam roll mounted to swing with the cutter and to control its swinging movement by cooperation with the cams as they pass. the cam roll being adjustable in a direction tangentialof the turret to bring the cam roll into contact with a selected part of the surface .of a cam during. the time the cutter is in contact with a heel in the corresponding jack, to regulate the curvature of the vertical cross-section of the breast surface formed, and means for adjusting the machine.

16. In a heel making machine, a cutting tool, a rotary turret turning past the tool, a series of jacks thereon, each jack consisting of an angularly adjustable but operatively fixed member and a pivoted member arranged to hold a heel between them, a lug mounted on each pivoted member, and a plate having a series of notches engaged by the lugs in series, the notches being of suflicient dimensions to permit a suflicient freedom of movement of the pivoted members to clamp heels in the jacks and release them. the notched plate being movable to adjust the extent of opening movement of the pivoted members to suit the height of heelsbeing treated in the machine.

17. In a heel mah'ng machine. a rotary turret carrying a plurality of jacks, each jack comprising jaws for clamping two opposite surfaces of a heel blank. and a pivoted gage member arranged to contact with a third surface of the heel blank to gageits position between the jaws. and means for holding the gage against movement about its pivot from gaging position when its jack is in loading position. p

18. In a heel making machine. a rotary tur ret carrving a pluralitv of jacks. each jack comprising jaws for clamping two opposite surfaces of a heel blank and a movable gage member arranged to contact with a third surfaceof'the heel blank to gage its position between the jaws. and a contact member arranged to contact with the gage members in turn as they rotate with the turret to hold them against movement from gaging position when their jacks are in loading position.

19. In a heel maln'ng machine, a heel carrier having a plurality of jacks. each jack comprising jaws for clamping two opposite surfaces of a heel blank and a movable gage member arranged to contact with a third surface of the heel blank to gage its position between the jaws, and an adjustable cam arranged to contact with the gage members in turn as they rotate with the turret to hold them against movement from gaging position when their jacks are in loading position.

20. In a heel making machine, a cutter, a jack having a fixed and a movable jaw, and a movable gage member arranged to hold a heel, means for moving the jack and the cutter relatively to each other to cause the cutter to operate on a heel in the jack, and two cams, each arranged in a fixed position relatively to the cutter. and arranged to set the gage and to close the jack respectively, in the order mentioned.

21 In a jack for wood heel blanks, a jaw having a surface for contacting with a face of a wood heel blank, said surface having a raised portion for contacting with an edge only of a heel blank face intersecting the face engaged by said surface, there being a substantial clearance beyond said raised portion to receive the said second-named face of the heel blank, whereby. in case the dihedral angle between the said heel blank faces is greater than 90, said first-named face may lie flat against said surface with said face edge against said raised portion.

22. Ian jack for wood heel blanks, a jaw having a surface for contacting with a face of a wood heel blank, said surface having a raised portion for contacting with an edge only of a heel blank face intersecting the face engaged by said surface. there being a substantial clearance beyond said raised portion to receive said second-named face of the heel blank. whereby. in case the dihedral angle between the said heel blank faces is greater than 90. said first-named face may lie flat-against said surface with said face edge against said raised portion. and a second jaw movable to hold the heel blank against said surface.

23. A machine of the character described. comprising a frame. a work support mounted on said frame for rotation in a horizontal plane. heel blank clamps for securing heel blanks in an operative position uponsaid support adjacent to the peripheral edge thereof.- a cutter having the cutting teeth arranged for rotation in a vertical plane and in the path of movement of the heel blanks carried by said support. a circular saw arranged in a horizontal plane carried by said frame adjacent to said support to engage the heel blanks carried thereby. and means admitting of relative adjustment between said table and the cutter and saw in both vertical and horizontal directions.

24:. A machine of the character described. comprising a frame. a work supporting table rotatably mounted on a vertical axis in connection with said frame. drive mechanism for rotating said table. a cutter rotatably mounted on said frame independently of said table and disposed adjacent to the peripheral edge of said table. a fiat horizontal saw rotatably mounted on said frame independently of said table and contiguous to the peripheral edge of aaeaeea the latter, means for adjusting the operating position of the table horizontall/ and vertically relatively to the cutter and saw, blank clamping devices carried by said table for receiving heel blanks to be presented to said I cutters, and automatically operating means for causing said devices to exert a gripping action on said heel blanks during engagement of the latter with both of said cutters.

25. In a heel breasting machine, a heel holder, a breast grooving cutter, a breast channeling cutter arranged adjacent thereto, means for effecting a relative traverse between the holder and the cutters to groove and to channel the breast of a heel in the holder, and means for effecting substantially identical relative movements between the holder and the cutters in a direction transverse to the traverse, as a heel in the holder passes each cutter.

26. In aheel breasting machine, a heel holder, a breast grooving cutter, a breast channeling cutter arranged adjacent thereto, means for effecting a relative traverse between the holder and the cutters to groove and to channel the breast of a heel in the holder, and means comprising a cam for effecting substantially identical relative movements between the holder and the cutters in a direction transverse to the traverse, as a heel in the holder passes each cutter.

In a heel breasting machine, a heel holder, a breast groovin cutter, a breast channeling cutter arrange adjacent thereto, means for effecting a. relative traverse between the holder and the cutters to groove and channel the breast of a heel in the holder, and a cam having an operative surface substantially longer than the height of a heel blank for effecting relative movements between the holder and the cutters in turn as the holder passes them, said relative movement being transverse to the traverse, and means for rendering operative the same portion of the cam as the holder passes each cutter.

28. In a heel breasting machine, a heel holder, a breast groovin cutter, a breast channeling cutter arrange adjacent thereto, means for effecting a relative traverse, between the holder and the cutters to groove and channel the breast of a heel in the holder, a cam having an operative surface substantially longer than the height of a heel blank for effecting relative movements between the holder and the cutters in turn as the holder passes them. said relative movement being transverse to the traverse, and a cam 'roll adjustably co-operating with each cutter, to select that portion of the cam which is to effect the transverse relative movement in the case of each cutter, and co-operating with the cam in producing the transverse relative movement.

29. In a heel making machine a jaek having two relative movable jaws arranged to messes them, a resilient member the gripping surface of 6. arranged to hold a heel the other jaw when the jaws are open, and means for closin the j aws, there being a clearance provided. elow the operative surface of the said one jaw to receive the resilient member when the jaws are closed upon a heel therein.

In testimony whereof I have signed my name to this specification RALP grip a heel between projecting beyond one of the jaws an between itself and H F. KNIGHT.

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