US2590136A - Outsole roughing machine - Google Patents

Description

March 25, 1952 E. w. STACEY 2,590,136

OUTSOLE ROUGHING MACHINE Filed Nov. 24, 1950 14 Sheets-Sheet 1 [n ventor Ernest W Stacey March 25, 1952 E. w. STACEY 2,590,135

OUTSOLE ROUGHING MACHINE Filed Nov. 24, 1950 1 4 Sheets-Shee't 2 Inventor Ernest WStacey 5 his Azfto 1 y March 25, 1952 E. w. STAC ZEY 2,590,136 OUTSOLE ROUGHING MACHINE I Filed Nov. 24, 1950 14 Sheets-Sheet 3 & H I Inventor 3;; 0 Ernest W Stacey 5 1' Attb March 25, 1952 E. w. STACEY OUTSOLE ROUGHING MACHINE Filed Nov. 24, 1950 14 Sheets-Sheet 4 Inventor Ernest. W5'tacey March'25, 1952 E. w. STACEY OUTSOLE ROUGHING MACHINE Filed Nov. 24, 1950 14 Sheets-Sheet 5 [n 1209211502 E772 est W. Stacey March 25, 1952 E. w. STACEY OUTSOLE ROUGHING MACHINE l4 Sheets-Sheet 6 Filed Nov. 24, 1950 lnveniow E7776 t W Stacey March 25, 1952 E. w. STACEY ouwsouz ROUGHING MACHINE l4 Sheets-Sheet 7 Filed Nov. 24, 1950 U] P 0m t5 mm n m E 1952 E. w. STACEY OUTSOLE ROUGHING MACHINE i4 Sheets-Sheet 8 March 25 Filed NOV. 24, 1950 lnven tar Ernest WStacey March 25, 1952 E. w. STACEY OUTSOLE ROUGHING MACHINE l4 Sheets-Sheet 9 Filed Nov. 24, 1950 W m n 8 m I Ernesz W Stacey March 25, 1952 E. w. STACEY 2,590,136

OUTSOLE ROUGHING MACHINE Filed Nov. 24, 1950 14 Sheets-Sheet 10 Inventor 76 372 es t W Stacey March 25, 1952 w, STACEY 2,590,136

OUTSOLE ROUGHING MACHINE Filed NOV. 24, 1950 14 Sheets-Sheet l1 [nventaw Ernest W Stacey March 25, 1952 w STACEY 2,590,136

OUTSOLE ROUGHING MACHINE Filed Nov. 24, 1950 14 Sheets-Sheet l2 mac @1 Inventor rnes't WStqcey' w I a I T1 14. v

March 25, 1952 w STACEY OUTSOLE ROUGHING MACHINE 14 Sheets-Sheet 13 Filed NOV. 24, 1950 Inventor I Emgt W. Stacey March 25, 1952 E. w. s'rAcEY 2,590,136

OUTSOLE ROUGHING MACHINE Filed Nov. 24, 1950 AlAAAAA L I- l A A A A A Inventor Ernest WStacey his Att 14 Sheets-Sheet 14 r Patented Mar. 25, 1952 UNITED STA ES FAEEZN'E GFFICE OUTSOLE RGUGHING MACHINE Application November 24, 1950, Serial No. 197,213

45 Claims.

This invention relates to machines for roughing shoe parts and is herein illustrated as embodied in a machine for roughing the margins of the flesh sides of outsoles preparatory to the cement attachment of said outsoles to shoes.

Machines heretofore used in the preparation of loose outsoies for cement attachment to shoes have been subject to various objections, one of said objections being that the roughing tool, in operating upon shank reduced outsoles, tends to destroy the previously formed and desired break line of the outsole. Moreover, difficulty has been experienced in forming on the margin of the flesh side of the outsole a properlyroughened band of uniform width and in forming simultaneously therewith at the edge of the outsole a uniformly wide unroughened portion which is sometimes chamfered and which in the finished shoe projects beyond the shoe upper, and accordingly, if not of uniform size and shape, mars the appearance of the shoe.

It is an object of the present invention to provide a roughing machine which will quickly and effectively form on the margin of the flesh side or face of a loose shank reduced outsole a uniformly wide roughened band and which will form simultaneously therewith at the edge of said face of the outsole along said band a smooth edge strip or chamfer of uniform size and shape.

With the above object in view, and in accordance with a feature of the present invention, the illustrative machine by the use of which outsoles may be roughened quickly and effectively, comprises a tool rotatable about an axis and having teeth arranged approximately in a frusto conical surface generated about said axis, an arcuate edge gage arranged toward said axis from said frusto conical surface, work feeding means, and mechanism comprising said edge gage for guiding a work piece, for example, a loose outsole, acted upon by said means past the tool, the axis of rotation of the tool lying outside of said outsole and being tilted toward a portion of a face of the outsole being operated upon by said tool.

The present invention consists in the above features and other novel features by the use of which a smooth and evened outer strip may be formed simultaneously with the roughened band and which are hereinafter described with reference to the accompanying drawings showing embodiments of the invention selected for purposes of illustration, the invention being fully described ,in the following description and claims.

In the drawings,

2 Fig. 1 is a side elevation of the illustrative machine as viewed from the right of the machine;

Fig. 2 is a plan View of the machine;

Fig. 3 is a side elevation of the operating head of the machine as viewed from the left of said.

machine;

Fig. 4 is a view on line IV-IV of Fig. 2;

Fig. 5 is a view on line V-V of Fig. 3;

Fig. 6 is a plan view, partly broken away, showing portions of the operating head of the machine;

Fig. 7 is a section on line VII--VII of Fig. 6;

Figs. 8 and 9 are views partly on lines VIII VIII and IXIX respectively of Fig. '7;

Fig. 10 shows a portion of the drive of the machine as viewed on line X-X of Fig. 1;

Fig. 11 is a section on line XI-XI of Fig. 10;

Fig. 12 is a view showing instrumentalities of the machine in the process of roughing a shank reduced outsole;

Fig. 13 is an enlarged perspective view of an i1- lu'strative roughing tool of the machine;

Fig. 14 is a perspective view showing a portion of a roughing tool blades of which are slightly different from blades of the roughing tool shown in Fig. 13;

Fig. 15 is a view on line XV-XV of Fig. 12 showing the roughing tool in the process of operating upon an outsole;

Fig. 16 is a diagrammatic view showing in dashlines a head of the roughing tool and a frusto conical surface in which tip portions of teeth of the roughing tool travel and also showing the angular relation of said surface and an outsole during the outsole roughing operation;

Fig. 17 is a diagrammatic view showing in plan and on a reduced scale the roughing tool head and the frusto conical surface illustrated in Fig. 16 together with edge gages of the machine and also showing portions of an outsole presented, during two different stages of the outsole roughing operation, to the tool head and the edge gages;

Fig. 18 is a view similar to Fig. 15 but showing a modified tool for simultaneously roughing the margin of the 'fiesh'side of an outsole and chamfering the marginal edge of said outsole to the form shown in Fig. 22;

Fig. 19 is a view similar to Fig. 18 illustrating a further modified roughing tool which in addition to roughing the margin of the flesh side of an outsole forms a, smooth countersunk strip along the edge of said outsole as shown in Fig. 23;

Fig. 20 illustrates a rough tool similar to that shown in Figs. 13 and 15 but having an inner tooth of each of its blades removed in order to form on the flesh side of an outsole a roughened band which is spaced from the edge of the outsole by an original portion of the flesh side of the outsole as shown in Fig. 24;

Fig. 21 shows in perspective an outsole which has been operated upon by the machine illus trated in Figs. 1 to 17; and

Figs. 22 to 24 illustrate portions of the outsoles which have been roughened by the machine equipped with the modified tools illustrated in Figs. 18 to 20 respectively.

The illustrative machine will be described with reference to roughing the margins of flesh sides or faces 36 (Figs. l, 9, 12, 15, 16, 17 and 21) of loose outsoles 32 which have been previously shank reduced to form beveled surfaces 34, and comprises a work feeding and guiding unit 36, an outsole roughing tool 38, a mount 40 for supporting the tool for rotation about an axis 4|, and driving mechanism 42 (Figs. 1, 2 and for the tool, said unit and said mount being supported upon a platform 44 secured to the upper end of a fabricated sheet metal column 46 (Fig. 1). Power for operating the machine is supplied by a motor 48 supported upon a pedestal 50 secured to a base portion of the column 46. It is contemplated, if desirable, to provide two motors, one for drivin the roughing tool 38 and the other for driving the work feeding and guiding unit 36.

The outsole to be roughened is placed upon a work table 52 by the operator who, after depressing a treadle 54 (Fig. l) to cause inner and out er concentrically arranged rotatable sleeves or rings 55, 58 (Figs. 3, 4, 6, 7 and 8) on the one hand and a resilient frusto conical feed roll 65 (Figs. 1, 2, 3, 6, 7, 9, and 12) on the other hand to be lowered away from the roughing tool and a toothed feed wheel 62 respectively, manually slides the heel portion of the outsole 32 over the table until its edge engages a cylindrical edge gage 64 and simultaneously therewith slides another portion of the outsole between the feed roll and the toothed feed wheel 62 until its edge engages an edge gage 66. Upon release of the treadle 54 theoutsole is gripped between the feed roll 65 and the feed wheel 82 and immediately thereafter is forced against the roughing tool 38 by the sleeves 56, 58, the outsole being moved with cross feed action lengthwise of its margin over the sleeves 56, 58 and past the roughing tool 38 to form on the outsole a roughened band 31 (Fig. 21). When the margin of the outsole has been roughened from a point somewhat rearward of one end of its heel breast line 65 to a point somewhat rearward of the other end of said line, the operator depresses the treadle 54 thereby releasing the outsole from the machine preparatory to manually removing the outsole from the machine and presenting another outsole to be roughened to the machine. It is sometimes desirable to have the roughened band extend around the entire margin of the flesh side 36 of the outsole 32 in which event it is customary to start the roughing operation at the forepart of the outsole and to cause the outsole to make slightly more than a complete revolution in the machine.

The work table 52 is constructed and arranged effectively to support, without assistance by the operator, the outsole 32 as it moves in a closed pathlengthwise of its edge past the roughing tool 38.; The sleeves or rings 55, 58 which serve as and may be defined as work supports and which may be considered as part of the table, as will be herein explained, are yieldingly supported independently and are concentrically arranged about an axis 63 of rotation, the upper ends, rims, faces or work supporting and feeding portions of the sleeves being at all times positioned slightly above an upper surface I6 of the table 52 and being adapted effectively to present to the roughing tool 38 the shank reduced outsole 32.

The work feeding and guiding unit 35 comprises a drive sleeve I2 (Figs. 3, 4, '7 and 8) to which a gear 5 4 is secured by screws 76 (Fig. 7), said sleeve being constrained against vertical displacement in a fixed main frame I3, which is secured to the platform 44, by the gear 14 and by a flange portion 89 of the drive sleeve. The flange portion 86 of the drive sleeve I2 fits in slots 82, 84 formed in the inner and outer sleeves 56, 58 respectively, said drive sleeve having formed in it a bore 86 for receiving slidingly a shank 88, of the outer sleeve. The outer sleeve 58 is provided with a bore 90 for receiving a shank 92 of the inner sleeve 56, the lower ends of the shanks 88, 92 of the outer and inner sleeves having formed in them annular grooves 94, 96 for receiving pins 38, I66 (Figs. 3 and 5) carried by inner ends of bifurcated arms I62, I64 pivotally mounted on pins I66, I08 supported in brackets which are secured to the platform 44 and may be considered as part of the frame I8.

The inner ends of the arms I02, I64 are constantly urged upward by springs H4, H6 the upper ends of which are attached to depending lugs secured to the table 52 and the lower ends of which are attached to lugs I69, I H adjustably mounted in slots II 3, H5 (Fig. 5) of said arms. In order to limit the upward extents of movement of the inner and outer sleeves 56, 58 under the action of the springs H4, H6 there are threaded into the outer end portions of the arms I52, I64 screws H8, I28 the lower ends of which are arranged to engage stop faces I22, I 24 of lugs which are secured to the platform 44 and constitute part of the frame 78. Outsole engaging rims of the inner and outer sleeves 56, 58 have flattened portions, hereinafter referred to, and when there is no work in the machine the inner sleeve is raised just above the outer sleeve as best shown in Fig. 7. The initial positions of the inner and outer sleeves 56, 58 may be quickly and effectively varied by the use of the screws H8, I25, and the spring applied forces imparting upward movement to the sleeves may be varied by securing the lugs I89, III in different operating positions in the slots H3, H5. In order to insure that the sleeves 56, 58 cannot be raised into the path of the roughing tool 38, the arms I62, I84 have secured to them depending bosses I25, I28 which are constructed and arranged to engage the stop faces I 22, I24 whenever the screws H8, I20 are removed from the bosses or are so adjusted that their lower ends do not project from said bosses.

The roughing tool 38 comprises a head I36 (Figs. 4, l3 and 14) provided with channels or slots I32 which may be said to face generally lengthwise of the axis 4| of rotation of the tool 38 and in which are secured associated pairs of presser members or feet I34 and blades I36. The bottoms of the channels I32 are inclined to a plane normal to the axis 4| of rotation of the roughing tool 38 at an angle approximately equal to a cone angle of a frusto conical face I 35 of the head I 30 which conical face may be described as having elements inclined at a slight angle to said plane.

fl'he presser feet I34, except for the slots I38 (Fig. 13) hereinafter referred to, overlie the entire bottoms of associated channels I32, flanges I 43 of said presser feet being engaged by associated blades I36 which are illustrated as having teeth 150 at their opposite margins, faces |4| of saidflanges being beveled to accommodate back raked edges I45 of the teeth which are forced against said flanges. The presser feet I34 are provided with the slots I38 for receiving pins I40 which are carried by the tool head I30 and project into the corresponding channels I32. The blades I36 have faces provided with frusto conical holes or recesses I42 into which are inserted conical inner ends of screws I44 which are threaded into said head and force the blades against angularly disposed portions of the associated presser feet I34 which may be described as L"-shaped.

The channels I32 and accordingly the presser feet I34 and the blades I36 are skewed at angles I48 (Figs. 12, and 17) with relation to associated or corresponding radial planes I49 (Fig. 17) which include the axis of rotation 4! and pass through the outer ends of the presser feet and the blades, thereby insuring that the V-shaped teeth I50, which project beyond work engaging faces I41 of the presser feet andare substantially circumferentially disposed with relation to the axis 4| and which are commonly in alinement with I corresponding teeth of the other blades, shall clear themselves in the work and assist the presser members in wiping the outsole being roughened inward toward the edge gage 64.

In order further to insure that the teeth I50 of the roughing tool 38 shall "clear themselves in the work alternate teeth of the blades I36, as shown in Fig. 14, may be eliminated, the con- 'struction and arrangement being such that in tools 38 having an even number of blades only a the teeth of every other blade are in circumferential alignment.

When the presser feet I34 and the blades I36 have been secured in their operating positions inthe tool head I30, leading tips II (Fig. 13) of the edges or ridges I45 of the V-shaped teeth I50 of each of the blades lie approximately in a line I52 (Figs. 13, and 16) disposed at approximately 4 to a plane I54 (Figs. 16 and 17) which is at right angles to theaxis 4| of rotation of the tool 38 and defines an inner end of a frusto conical surface I53 (Fig. 16) having the axis 4| as a center. 'The edge or ridge I of each of the teeth I has a slight back rake as it extends away from the work engaging face I41 of an associated presser member I34. Since the tips I5! of the teeth I50 of each of the blades I36, which tipsmaybe'described as apex portions or vertices of the teeth, lie in one of the lines I52, the teeth and their tips may be considered as lying or being disposed approximately in the frusto conical surface I53 elements of'which are disposed at'a slight angle (approximately 4) to the plane I54 which intersects the surface I53 and is normal to the axis 4| of rotation of the tool 38. The frusto conical surface I53 in which the tip portio'ns'cf the teeth I50 lie may also be described as facing away from and at an oblique angle to the axis 4| of rotation of the tool 38 which may be referred to as an end mill roughing tool. The roughing tool 38 may be further described as comprising a plurality of blades I36 which are spaced circumferentially about the axis 4| of rotation of the tool and have rows or series of teeth I50 tips or 'apex'portions I5| of which extend below or project beyond work engaging surfaces I41 of associated presser feet I34 and lie approximately in the frusto conical surface I53 in which lie the loci of said tip portions of the teeth.

In order that the teeth I56 of the roughing tool 38 shall dip into the outsole 32 as they rotatingly swing down in the frusto conical surface I53 over and from outside said outsole, the axis 4| of rotation of the tool 38 (Fig. 4) is forwardly tilted approximately 4 from the vertical, said axis being disposed at an acute angle to the face portion of the outsole being roughened and intersecting the axis 68 of rotation of the sleeves 56, 58 in the vicinity of the plane I54 (Fig. 16). It will be apparent that when the teeth I50 of each of the blades I36 of the roughing tool 38 are in their lowermost positions the line I52 extending along the tipsof the teeth is approximately opposite and is approximately parallel to the portion of the flesh face of the outsole presented by the sleeves 56, 58 to the tool, said teeth because of their entry into the work along a frusto conical path such as above described performing their roughing operation without'any substantial amount of bridging action of the outsole lengthwise of its margin. Spaced opposing portions of the faces I66, I68 of the sleeves 56, 58 on the one hand and the frusto conical surface I53 on the other hand may be referred to as an outsole receiving notch or gap I59 (Fig. 16) which curves generally about the axes of rotation 4| and 68 of the sleeves and the roughing tool and may be defined as arcuate.

The upright drive shaft I3I for the roughing tool 38 is rotatingl-y mounted in ball bearings I58 (Fig. 4) supported in a bracket or housing I60 which may be quickly and effectively swung or transferred between a full line poistion shown in Figs. 1 and 4 in which the tool is active and an idle or inactive dash-line position (Fig. 1) in which the blades I36 and/or the presser feet I34 of the tool are changed. The mechanism through which the tool is moved between its active and idle positions will be described in detail later.

The edge gage 64 is illustrated as having a smooth cylindrical face I6I, which, if desirable, may be vertically ribbed, and a base portion I62 (Figs. 4 and '7) fitting inside the inner sleeve 66 and secured to said sleeve by a screw I64. When an outsole, the margin of which is of uniform thickness, is being roughened, work engaging faces I65, I68 (Fig. 7) of the sleeves 56,58 are in substantially horizontal alinement, as shown in full lines (Fig. 15), and when a shank reduced margin is being roughened the face I66 of the inner sleeve is raised with relation to the face I68 of the outer sleeve, as shown in dash-lines in Fig. 15. The upper ends or faces I66, I68 of the sleeves 56, 58, which are independently yieldable lengthwise of their common axis 68 and may be described as a multipart support, may be defined as lying in a plane which is approximately parallel to the line I52 and accordingly parallel to opposing elements of the frusto conical "face I53.

The work engaging faces I66, I68 of the yieldable sleeves 56, 58 are curved approximately about the axis 68 of rotation of the sleeves and may be described as arcuate, said axis, as above explained, intersecting the axis 4| of rotation of the tool in the vicinity of the plane I54 (Fig. 16'). Since the sleeves 56, 58 are independently yieldable it will be clear that the outsole marginal face being operated upon will be disposed substantially parallel to opposite elements of the frusto conical surface I53 whether said marginal face is of uniform thickness or is shank beveled. The cylindrical face I6I of the edge gage 84 may be described as arcuate and positioned at one side of the gap or notch I59 and within a projection of the frusto conical face I53 on a plane passing through said face IBI and normal to the axis M. The cylindrical face II of the edge gage 68 may also be described as being closer to the axis 41 of rotation of the tool 38 than is the frusto conical surface I53, as being positioned between the said axis and the outsole supporting portion of the sleeves 56, 59 or the outsole support, or as being positioned between portions of the sleeves and adjacent portions of the axes 4| or 68.

The roughing tool 38 is preferably rotated in a direction opposite to the direction of movement of the outsole past the tool and opposite to the direction of rotation of the sleeves 56, 58, the surface speeds of the faces I66, I68 of the sleeves usually being considerably greater than the speed imparted to the outsole by the feed roll 68 and the feed wheel 62 which may also be referred to as a roll. As above stated the sleeves 56, 58 which constitute part of'the table may be referred to as a rotatable portion of said table. The axis of rotation 68 of the edge gage 64 is disposed approximately at right angles to the face 18 of the table 52 and lies in a plane normal to the axis of the feed roll 88 at the work-engaging portion of said feed roll.

Mounted upon a shoulder I18 (Figs. 3, 4 and I;

7) of the frame 18, and held in adjustment on said shoulder by a binding screw I12 (Figs. '1 and 8) screwed to the frame, is a drive supporting beam I1 l which as hereinafter explained carries the edge gage 88 and has rotatably mounted in it mechanism for rotating said gage, the beam being held in different adjusted positions upon the shoulder I19 by a clamp plate I18 (Figs. 3, 4, 6 and 8) forced against said beam by a screw I18 threaded into the frame 18 and passing through an elongated slot I89 (Figs. 3 and 6) in the beam.

The motor 48 has a shaft I82 (Fig. l) to which is secured a pulley I84 driving through a belt I86 (Figs. 1 and 2) a pulley I88 secured to a shaft I90 rotatable in bearings in the frame 18. Power for operating the work feeding and guiding unit 36 is supplied by the shaft I98 which has secured to it a pulley I92 driving a belt I98 which passes over idler pulleys I96 and drives a pulley I98 secured to the drive shaft I3I of the roughing tool 38. Fixed to the shaft H8 is a Worm 282 (Figs. and 11) which meshes with a worm gear 284 fixed to a vertical shaft 288 (Figs. '7, 9, 10 and 11) rotatingly mounted in the frame 18.

Operatively connected to the shaft 286 through a coupling 288 is another vertical shaft 2I8 rotatable in the frame 18 and having secured to it gears 2I2, 2M. The gear 2I2 drives through an idler gear 2 I8, which is mounted upon a pivot pin 220 secured to the frame 18, a large gear 2 I 6 forming part of the drive for the feed roll 69, the gear 2I4 forming part of the drive for the work supportin sleeves 58, 58. The gear 2.!2 also drives a large gear 222 (Figs. 3, 5, 8 and 9) forming part of the drive for operating the toothed feed wheel 82. Secured to the upper end of the shaft 2I9 is a gear 22:1 which meshes with a wide gear 228 secured to the lower end of a vertical shaft 228 journaled in the beam I14.

The edge gage 66 has a bore 238 (Fig. 9) for receiving the upper end of a shaft 232 and is secured to said shaft by a screw 23 1. The shaft 232 is rotatingly mounted in the beam I14 and has secured to its lower end a gear 238 (Figs. 3, 7 and 8) meshing with an idler gear 283 (Figs. 1 and 8) which is secured to a shaft 235 journaled in the beam and which is operatively connected to the gear 226.

As above explained, the edge gage 86 is adjustable to a slight extent together with the beam I14 about the axis 68 of rotation of the sleeves 58, 58 in order to expedite the feeding of the outsoles of different sizes and/or shapes past the roughing tool 38. Such adjustment may be readily effected by releasing theclamp screw I18 to release the clamp plate I 16 and after swinging the beam I15 to the proper adjusted position about the axis 88 again turning the screw I18 to force the clamp plate against the beam. The maximum angular adjustment of the edge gage 66 about the axis 68 of rotation is only a few degrees.

The resilient feed roll is depressible against spring action and is also initially adjustable in directions 238 (Figs. 2, 6, 9 and 12) the toothed feed wheel or roll 82 being fixed against vertical illOVilPllt by being initially adjustable, as will be herein explained, about a common axis 240 of rotation of the shafts 286, 2I8 in order to vary the amount of cross feed force applied to the outsole. The toothed feed wheel 62 is formed integral with a shaft 242 (Figs. 1, 2, 6 and 9) which is rotatingly mounted in a yoke 2M and has secured to its upper end a bevel gear 228 meshing with a bevel gear 248 secured to an upper vertical shaft 258 journaled in the yoke and coupled to a lower vertical shaft 252 (Figs. 8 and 9) also rotatingly mounted in said yoke which comprises upper and lower parts secured together by screws 253 (Figs. 2, 6 and 9). Secured to the lower end of the shaft 252 is the large gear 222 which through mechanism above described is operated by the horizontal drive shaft I98.

The feed roll 88 has a hard rubber periphery and a steel core 254 (Fig. 9) pinned to a shaft 258 which is arranged approximately parallel to the upper surface 18 of the table 52 and is mounted for rotation in bushings 258 in a carrier 288 pivotally mounted on a shaft 292 journaled in bushings 28 mounted in the frame 18. The forward end of the shaft 282 has secured to it a bevel gear 2% (Figs. 6, 7, 9 and 12) meshing with a bevel gear 268 secured to the upper end of a shaft 218 which is journaled in the frame 18 and has secured to its lower end the large gear 2I6. The feed roll 88 is constantly urged bodily clockwise as viewed in 7 by a spring 212 (Figs. 1, 6, '7, 8 and 9) upper and lower ends of which are attached to a threaded pin 214 secured to the carrier and to a beam 213 (Figs. 1 and 8) attached to an adjustable lever 215 mounted upon the frame 18. Clockwise movement of the carrier 260 upon the shaft 282 (Fig. '7) and accordingly upward movement of the feed roll 68 is limited by a screw 211 which is threaded into the frame 18 and has its upper end normally engaged by the carrier.

The feed roll 69 is depressed against the action of the spring 212 preparatory to presenting the outsole to the machine by depressing the treadle and thus swinging a lever 218, operatively connected to the treadle, counterclockwise as viewed in Fig. 7. The lever 218 has secured to its right end (Fig. 7) a stud 288 engaging in a slot 282 formed in a link 264 pivoted upon the pin 2I4.

Upon counterclockwise rotation of the lever 218' the stud 286 is forced against the upper end of the slot 282 causing the link 284 to be moved upward and the carrier 266 to be swung counterclockwise (Fig. 7) about the shaft 262.

During the outsole roughing operation the feed roll 66 is depressed different distances against the action of the spring 212 from its initial raised position in accordance with the thickness of the outsole and the portion of the outsole being operated upon, the link 264 being raised or lowered with relation to the lever 218 by reason of the above described stud and slot connection between these members. The carrier 266 for the feed roll 66 may be initially adjusted upon the shaft 262 in the direction of the arrows 238 to bring it close to the edge gage 66 by rotating a rod 286 (Figs. 1, 3, 6, 7 and 12) which passes through a bore 288 in one portion of the frame 18 and is threaded into another portion of said frame, the rod fitting in a notch 296 in a flange 292 of the carrier and having secured to it a pair of collars 264 which engage opposite sides of said flange. Housed in the carrier 266 and secured to the shaft 262 is a gear 296 (Figs. 7 and 12) operatively connected through idler gears 296, 366 journaled in the carrier to a gear 362 fixed to the shaft 256 to which the feed roll 66 is secured. With the above construction it will be apparent that the feed roll 66 may be initially adjusted in the direction of the arrows 236 to move said roll as near as possible without interference, to the edge gage 66.

As above explained, in order to vary the cross feed force applied to the outsole during the portionof the yoke 244 has formed in it an arcuate slot 368 which is centered about the. common axis 246 of the shafts 266, 2H) and through which passes a setsorew 3I2 threaded into the frame I8 and having its head overlying a base of the yoke,

said setscrew, when tightened to force its head against. the yoke, serving to secure said yoke in its initially set position about said axis. The toothed feed wheel 62 may be described as being initially adjusted about the axis 246 which is disposed at approximately right angles to the surface I6 of the table 52 and passes approximately through the axisv of rotation of the feed roll 66 and through opposite bite portions of said roll and said wheel which may be referred to as outsole feeding means spaced from and in advance of the roughing tool 38.

Thelever 218 is journaled upon a pin 3I4 (Figs. 5, 7 and 8) secured to the frame I8 and is operatively connected to the upper end of a rod 3I6 (Figs. 1, 3 and which is constantly urged upward by a spring 3 I6 (Fig. 1). The lower end of the rod, 316 is pivotally connected to the treadle 54 which, is secured to a pin 326 fulcrumed in the. base-of the column 46, upward movement of the treadle being limited by the engagement of a screw 322, which is carried by a lug 323 secured to the pin, with said base. The rear end of the lever- 2 16 is operatively connected to the link 284 and the forward portion of said lever overlies a depending lug 324 (Figs. 3 and 5) secured by screws 326 to the bifurcated sleeve operating arm I64. Upon depression of the threadle 54 the lever 218 is rotated counterclockwise as viewed in Figs. 3 and 7 causing the arm I64 to Swing counterclockwise about its pivot pin I68 thereby lowering the inner sleeve 56 and then the outer sleeve 58 and depressing, through mechanism above described, the feed roll 66 to enable the operator to present an outsole between the tool 36 and the sleeves 56, 68 on the one hand and the feed roll 66 and the feed wheel 62 on the other hand.

The bracket I66 in which the tool 38 is r0- tatingly mounted is supported upon a threaded pivot pin 326 (Figs. 1, 2, 3 and 4) which is secured against rotation in upstanding bifurcated portions of the frame 16 and onto which is threaded a nut portion 336 of a manually actuated cam lever 332 which may also be described as a cam. Formed integral with the bracket I66 is an arm 334 pivotally connected through an expansible connection 336 to one arm of a bell crank lever 333 mounted upon a pin 346 supported by the frame I8. The bracket I66 may be swung upon the pin 326 back to an idle or inactive position after swinging a latch 342, which is mounted upon a pivot pin 344 carried by the frame I8, counterclockwise as viewed in Fig. 4, against the action of a spring 346 and away from a face 343 ofthe lever 333 and breaking a toggle 356 formed by the lever and the connection 336. Also fulcrumed on the pin 346 is a bell crank lever 362 an upstanding arm of which carries a roll 354 and a horizontal arm 356 of which overlies a rearward projection of the latch 342, the upstanding arm of the lever 352 normally being held against the frame I8 by. a spring 358.

When the manually actuated cam lever 332 is in its position illustrated in Fig. i and the tool 36 carried by the bracket I66 is in its active position said lever through its nut portion 336 draws the bifurcations of the frame I8 against opposite sides of the bracket I66 and binds said bracket rigidly to the frame. When it is desirable to change the tool 36 the operator swings the cam lever 332 counterclockwise (Fig. 4) thus backing the nut portion 336 off the threaded pin 328 and causing a rear edge of said lever to engage the roll 354 and also causing the bell crank lever 352 and accordingly the latch 342 to swing counterclockwise upon their associated pivot pins 366, 344 respectively against the action of the springs 366, 346 with the result that the latch is moved out of contact with the surface 348 of the lever 336. The bracket I66 is then manually swung rearward to its dash-line position shown in Fig. l preparatory to working on the tool. After the tool has been reconditioned and has been swung forward to its active position the latch 362 is released to allow it to swing under the action of the spring 346 into engagement with the surface 348 of the bell crank lever 336 thereby preventing the then straightened toggle 366 from, being broken. The manually actuated cam lever 332 is then swung clockwise to its position shown in Fig. 4 to bind the bracket I66 rigidly to the frame I6.

The roughened band 6! formed at the margin of the flesh side or face of the outsole 32 usually extends to the edge of the outsole, said edge of the outsole in the finished shoe hugging the shoe upper to produce what is commonly referred to as close edge work.

In the manufacture of shoes having cement attached outsoles which project slightly beyond the bottoms of said shoes it is desirable that projecting margins of the outsoles shall be um'oughened and clean, that is, free from cement. In the manufacture of outsoles 32A (Figs. 18 and 22) 32B (Figs. 19 and 23) and 32C (Figs. 20 and 24) which are adapted for attachment to shoes of the type just referred to, it is desirable to form roughened bands 61A, 61B and 610 which stop short of the edges of the respective outsoles, the portions of the flesh sides 30A, 30B and 30C of the outsoles adjacent to said edges comprising a chamfered strip 360 such as illustrated in Figs. 18 and 22, a fiat countersunk strip 362 such as illustrated in Figs. 19 and 23 or an unroughened strip 364 of the original flesh side 36C of the outsole as illustrated in Figs. 20 and 24.

The outsoles 32A and 3213 may be simultaneously roughened and edge reduced by slightly modifying the edge gage 54 and the blades I36 of the roughing tool 38 of the above illustrated machine. The machine modified as illustrated in Fig. 18 comprises an edge gage 64A somewhat lower than the edge gage 64 and a roughing tool 38A having blades 136A each of which has teeth |50A for forming the roughened band 67A and a chamfering tooth 61 for forming the chamfered strip 360.

The machine modified as illustrated in Fig. 19

comprises an edge gage 64B substantially identi- Having described the invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In an outsole roughing machine, a roughing tool rotatable about an axis, said tool having teeth the loci of which, when the tool is rotated, lie substantially in a frusto conical surface, a work support which is arranged in opposed relation to the tool, and means comprising an edge gage for guiding an outsole upon said work support past the tool, portions of the edge gage engaged by the outsole being positioned between an adjacent portion of said axis of rotation of the tool and the portion of the support engaged by the outsole.

2. In a roughing machine, a roughing tool rotatable about an axis, said tool having teeth edges of which lie substantially in a frusto conical surface generated about said axis, a support arranged in opposed relation to the tool, and means comprising an edge gage for guiding an outsole on the support past the tool, said axis being positioned a substantial distance outside of the outsole being operated upon and being inclined at an acute angle to a general plane of the portion of the outsole being operated upon.

3. In a roughing machine, a roughing tool 1'0- 1 tatable about an axis, said tool having teeth edges of which lie substantially in a frusto conical surface centered at said axis, a support arranged in opposed relation to the tool and yieldable in a rectilinear path inclined at a slight angle to said axis, and means comprising an edge gage for guiding an outsole over the support and past the tool, said axis of rotation of the tool at all times being positioned a substantial distance outside of the outsole being operated upon and being tilted 12 toward the outsole at an acute angle to a portion of a face of said outsole being operated upon.

4. In an outs-ole roughing machine, a tool rotatable about an axis, said tool comprising a head carrying roughing teeth which, when the tool is rotated, travel approximately in a frusto conical surface which faces away from said axis at an oblique angle thereto, a yieldable support which is arranged opposite the frusto conical surface and is adapted to force an outsole against said head and said roughing teeth, and means for guiding an outsole upon the support past the tool, said means comprising an edge gage provided with a cylindrical face which is positioned adjacent to the work support and within a projection of said frusto conical surface on a plane passing through said cylindrical face and disposed at right angles to the axis of rotation of the tool.

5. In a roughing machine, a roughing tool rotatable about an axis, said tool comprising, a head carrying roughing teeth which, when the tool is rotated, travel approximately in a frusto conical surface which faces away from said axis at an oblique angle thereto, a work support having a face which is positioned opposite said frusto conical surface and is arranged approximately in parallel relation to opposed elements of said frusto conical surface, and means comprising an edge gage which has a face for guiding an outsole upon the support past the tool, said face of the edge gage being positioned adjacent to said support and to said frusto conical surface and being arranged closer to said axis of rotation of the tool than is said frusto conical surface.

6. In a roughing machine, a tool rotatable about an axis, said tool having teeth apex portions of which, when the tool is rotated, move approximately in a frusto conical surface which faces away from said axis at an oblique angle thereto, a work support positioned opposite said frusto conical surface, and means comprising an edge gage having a work engaging face for guiding an outsole upon said support past the tool, said face of the edge gage being positioned toward said axis from a projection of the frusto conical surface on a plane which is normal to the axis of rotation of the tool and passes through said work engaging face.

7. In a roughing machine, a roughing tool rotatable about an axis, said tool having teeth apex portions of which, when the tool is rotated, move approximately in a frusto conical surface which faces away from said axis at an oblique angle thereto, a support positioned opposite said frusto conical surface, and means comprising an edge gage having a face for guiding an outsole mounted upon said support past the tool, said face of the edge gage being positioned between the axis of rotation of the tool and the portion of the support engaged by the outsole.

8. In a roughing machine, a roughing tool rotatable about an axis, said tool having teeth edges of which, when the tool is rotated, move approximately in a frusto conical surface which faces away from said axis at an oblique angle thereto, a support which is positioned opposite said frusto conical surface and forms an outsole receiving notch therewith, said support being rotatable about an axis disposed at a slight angle to the axis of rotation of the tool and being yieldable lengthwise of said axis, and means comprising an edge gage having a face for guiding an outsoie upon said support past the tool, said face of the edge gage lying toward said axis from a projection of the frusto conical surface on a plane

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