US1993952A - Heel-breast scouring machine - Google Patents

Description

March 12, 1935 F, ASHWQRTH; 1,993,952

HEEL BREAST SCOURING MACEINE Filed April 7, 1953 5 s t -s 1 Fig.1. I

March 12, 1935. F. ASHWORTH HEEL BREAST SbOURING MACHINE Filed April '7, 1935 5 Sheets-Sheet 2 Q N QM g WmQ R3 March 12, 1935. 9 FQQASHWORTH Y 1,993,952

HEEL BREAST SCOURING MACHINE Filed April '7, 1933 5 Sheets-Sheet 3 Fig. 3. 9

March 12, 1935. F. ASHWORTH HEEL BREAST SCOURING MACHINE Filed April 7, 1933 5 Sheets-Sheet, 4

//v VE/V 717/1 March 12, 1935. F. ASHWORTH 1,993,952

HEEL BREAST soounme MACHINE Filed April 7, 1933 5 Sheets-Sheet 5 Patented Mar. 12,

Fred Ashworth, Wenham,

United Shoe Machinery Corporation,

Mass, assignor to Paterson,

N. J., a corporation of New Jersey Application April '7, 1933, Serial No. 664,892

23 Claims.

This invention relates to an abrading machine and is herein illustrated breast scouring machine United States Letters as embodied in a heelof the type disclosed in Patent No. 1,954,035,

5 granted April 10, 1934 on my application. The machine disclosed in that patent comprises a scouring belt which is supported against the pressure of the work by a form block having a convex working surface which is substantially comple mental to the heel-breast of a, shoe to be operated upon. With machines of this type it is possible to present the greater portion of the heel-breast surface at once to the scouring belt. However, because the shanks of shoes are practically without exception curved transversely, there will be left on each side of the heel-breast surface adjacent to the shank a small tapering area which will not engage the scouring belt.

It is an object of the present invention toprovide an improved heel-breast scouring machine of the type under consideration which will enableall portions of the heel-breast surface to be presented to the scouring belt.

The illustrated machine is provided with a pair of gage members constructed and arranged to engage the lateral edges respectively of the heel to position the heel-breast surface relatively to the scouring tool. This construction affords the advantage of enabling the gagemembers to engage a relatively large surface of the heel while at the same time leaving the entire heel breast free for presentation to the scouring tool. In accordance with a feature of the invention, the gages are yieldable to enable a heel to be received between them, and means are provided for preventing separation of the gage members to maintain them in gaging relation toa heel which has been inserted between them. In accordance with a further feature, the gage members are constructed and arranged not only to engage the lateral edges but'also to engage the tread surface of the heel. In order to enable all portions of the heel-breast surface to be presented to the scouring belt provision is made for tilting the gages transversely of the heel.

The effect of thus tilting the gagesis to rock the shoe about its convexly curved shank so that there will be no portions adjacent to the shank which are not brought into engagement with the scouring belt. The gage members above referred to, by reason of the fact that they engage the tread surface of the heel,

function also to determine the inclination of the heel-breast surface relatively to the scouring belt in a direction which is wise of the shoe. In the longitudinal and heightillustrated machine the scouring tool consists of an abrading belt supported by a form block having a shape complemental to that of the heel-breast surface, and the effect of tilting the shoe transversely would change the angle at 5 be, unless corrected, to which the outer edge porti ons of the heel-breast I surface engage the belt, with the result that the corners of the heel breast In order to maintain the direction which is longitudinal and would be scoured off.- same inclination in a heightwise of the shoe on all portions of the heel-breast surface, there is provided a means for tilting the gage members in alongitudinal and heightwise" direction relatively to the shoe.

In the illustrated machine the above-mentioned gage memhere are assisted and heightwise tilting of Connections are 7 provided setting of this additional mentioned gage members a ter is varied to compensate for their rocking movement.

in determining the longitudinal the shoe by another gage which contacts with the forepart of the shoe.

for coordinating the gage with the 'firsts the tilting of the lattransverse V The invention further consists in various features of construction and herein disclosed and claimed, the

' those skilled in the art whichwill be apparent to,

from the foregoing description, made to the accompanying combinations of parts advantages of reference being drawings, in which Fig. 1 is a view in side elevation of a machine embodying the invention;

scale;

tion of the machine on Fig. 2 is a plan view of the machine on a larger Fig. 3 is a view in side elevation showing a pora still larger scale Fig. 4 is a front elevation of the portion shown in Fig.3;

Figs. 5 and 6 are enlarged views in front elevation showing portions of mechanism of the machine;

Figs. 7 and 8 are detail operation of the machine Fig. 9 is a perspective view the mechanism; and

views illustrating the upon a shoe;

showing a detail of Fig. 10 is a cross-sectional view in elevation taken on the line X-X of Fig. 2.

The supporting structure of the machine consists of a standard 10 provided with a base 12 and carrying at its upper portion a hollow frame 14. Access to the interior of the frame 14 is provided by'a pair of hinged cover- plates 16 and 18, respectively. The frame 14 constitutes a housing for an abrasive belt 2 0 which passes over a drive-pulley 22, a pair of idler pulleys 24. and 26,

respectively, and a form block 28. The drivepulley 22 is fixed upon the upper end of a. shaft 30 of a motor 32 carried by a bracket 34 which is supported by the standard 10. The upper end of the shaft 30 extends into the frame 14 which houses the drive-pulley 22. The drive of the motor 32 is controlled from a switch-box 36 positioned upon the forward end of the frame 14 and connected to the motor 32 by a conduit 38. An exhaust blower casing 40, also supported by the bracket 34, is positioned below the motor 32. A rotary blower member within the casing 40 is driven by the lower end of the shaft 30. Connecting the suction end of the blower 40 to a horizontal duct 41 formed in the interior of the frame 14 (Fig. 2) is a conduit 42. The dust which arises from the abrading action of the belt 20, and which is released adjacent to the forward end of the duct 41 will be conducted through the duct 41 and the conduit 42, and will thence be discharged through the exhaust end of the blower casing 40 into a dust-collecting conduit.

The idler pulley 24 is journaled in a bracket 44 mounted on the housing 14. The idler pulley 26 is journaled in a bracket 46 which is in the form of a bell-crank pivotally mounted in the housing 14 upon a fulcrum pin 48. An arm 50 of the bell-crank 46 carries an upstanding pin 52 which enters a groove 54 in a horizontally disposed screw 56 which is threaded in a boss 58 formed in a side wall of the housing 14. The adjusting screw 56 is operated by a hand wheel 60 through a clutch 62 comprising a pair of members having interengaging teeth which are so inclined as to slip when resistance is encountered in tightening the adjusting screw 56. A spring 64 maintains the clutch members 62 yieldingly in operative engagement. The turning of the adjusting screw 56 to move the arm 50 in a counterclockwise direction, as viewed in Fig. 2, serves to move the pulley 26 in a direction to increase the tension of the belt 20, the extent, however, to which the belt 20 may thus be tensioned being limited by the slipping of the clutch members 62.

The forward end portion of the frame 14 is recessed, as indicated at 65 to enable the heel-breast surface of a shoe to be presented to the abrasive belt 20. The recess 65 provides room for the toe end of the shoe. The cover-plate 18 is similarly recessed. The form block 28 is carried by a bracket 66 which has an upstanding flange 6'7 which is slidable in a vertical guideway formed in an upstanding flange 69 of a bridge 68 integral with the frame 14 and extending across the recess 65. The bracket 66 may be clamped in any desired position of vertical adjustment by a screw 70. The form block 28 is slidably mounted for adjustment forwardly and rearwardly in the bracket 66 and is clamped in any desired position of such adjustment by a screw 72. The form block 28 has a convex operative face which is shaped to a curvature complemental to that of the desired contour of the breast surface of the heel to be scoured, and it provides backing for the scouring belt 20, causing the scouring belt to assume the desired shape. The form block is readily removable and replaceable, and several form blocks of different degrees of convexity respectively may be provided to accommodate the various shapes of heel-breast surfaces on different styles of shoes. A guide '75 on the form block 28 engages the upper edge of the belt and keeps the belt from riding up upon the form block. Many of the parts of the machine so far described are similar to corresponding parts of the machine disclosed in my above-mentioned Letters Patent No. 1,954,035. The form block of the present illustrated machine, however, is of wood rather than metal.

The breast surface of a heel of a shoe to be operated upon by the machine is presented to the abrading belt 20 in the position shown in Fig. 8. The heightwise position of the shoe is determined by a gage 73 secured against the under surface of the form block 28. As shown in Fig. 8, the under surface of the form block 28 is beveled to avoid interference with the shoe and to enable the shoe to be presented in any desired position of longitudinal heightwise inclination.

For positioning the breast surface of the heel of a shoe in a desired angular relation to the operative portion of the abrading belt 20, there are provided a pair of gage members 74. These gage members, as shown in Figs. 4, 5 and 10, are an gular in form, each having a flange 76 for engaging a heel bottom and a flange '78 for engaging a lateral edge of the heel. Each of the gage members 74 is pivotally mounted upon a pin 80 having a substantially vertical axis and secured in a bracket 82 carried at the lower end of a depending lever 84. A spring 86 surrounding the pin 80 serves normally to maintain the gage members 70 in inclined relation to each other with their rear ends closer together than their forward ends to facilitate the introduction of a heel. As the heel is inserted between the two gage members, the springs 86 yield and enable the gage members to assume a substantially parallel relation to each other. As previously stated, there is provided for each of the gage members 74 a supporting lever 84. Each of the levers 84 is pivotally mounted upon a pin 88 and the pins 88 are secured in a bracket 90. Each of the arms 84 has a substantially horizontal bellcrank extension 92 terminating in a gear sector, and these two gear sectors intermesh so that the movement of either of the levers 84 about its pivot 88 will cause a like movement on the part of the other lever 84, thereby coordinating the positions of the gage members 74 with respect to a common fixed center line. The two levers 84 are connected by a tension spring 94 which urges them together. In order to provide for adjustment of the inclination of the gage member 74 in a direction which is longitudinal and heightwise relatively to the shoe, the brackets 82 are pivotally mounted upon the levers 84, respectively, by means of pins 98 (Fig. 3). Each of the brackets 82 has a forwardly extending portion 100 which serves as a crank arm. Pivotally connected to the forward end of each of the cranks 100, is an adjusting rod 102. To accommodate the rotary movements of the cranks 100, the lower ends of the rods 102 are slotted, being formed as hooks for convenience in assembling. Each of the rods 102 is guided in the lever 84 which carries the bracket 82 to which the rod 102 is connected. Each of the rods 102 at its upper end carries a pair of spaced collars 104 (Fig. 6). Between the collars 104 on each of the rods 102 is a knob 106 which constitutes one end of the lever 108. The levers 108 are pivoted upon'the pins 88, respectively. The opposite ends of the levers 108 constitute gear sectors that intermesh with each other so that the up-and-down movement of either of. the rods 102 will be transmitted to the other rod 102 through the levers 108 and the gear sectors, which serve to coordinate the upand-down adjustments of the gage members 74. One of the rods 102 is threaded in a pin 115 journaled between a pair of cars 110 formed in one. ofthe leversi84fl so that the turning of the rod 102; by. means of a knurled head 112', will effect the simultaneous adjustment of both of the gage'imembersl '74." For the purpose. of. limiting thei'nwardrimovements .of :the gage members 1'7 4 underthe influence of the spring 94, there is provided a stop-screw 114 which engages the bellcrank arms 92 and which is threaded in a bracket 116 mounted upon the bracket90.

The bracket 90' is carried by abracket 184. Provision for up-and-down movement of the bracket 90 relatively to; the bracket 184 is provided by means later to be described. The bracket 184 is pivotally'mounted upon a pin 118 for the purpose of enabling the depending arms 84 and the gages '74 to be swung up out. of the way when it is desired to remove or replace the bearing block 28 or whenever access to this por-' tion of flthe machine is required for any "other reason. The pin 118 is mounted in a'rotary sec-- tor=120 and the bracket 184 is locked in either of its two" positions; that is,. either its down and operative or its up 'and out-of-the-way position in relation to the sector-120, .bymeans of -a' spring-pressed pin- 122 which'engages one or. the

other of two matches 124 formed in the curved, surface of a latch member 126 secured upon the sector -12 0. A pair of lugsz (Fig. 4) extending a from the sector 120 are engageable respectively with a pair-oflugs 127 (Fig. 3) extending respectivelyfrom the levers 84 to afford support and I backing for the'levers 84 when-the latter are down *in operative vposition. The sector 120 is guided for rotary movement by a pairof slotted sectors 128 and 130, respectively; The slotted sector 128 is supportedby a' trunnion pin 129 (Fig. 3) mounted in a bracket 132 which is secured upon the forward portion of the frame 14 adjacent to one side of the bearing block 28.

The slotted sector130 is likewise supported by a trunnion. pin 131 (Fig. 10) mounted in a bracket 134 which is. secured to the frame 14- adjacent to the opposite side of the bearing block 28. The trunnion pins 129and 131 are coaxial and they provide for tilting movementof the sector 120' in a. direction which is heightwise and longitudinal relatively to the machine. Theaxis of rotation offthevvsector 120 in the guides. 128 .and 130 intersects the axis of thejtrunnio'ns 129 andj131.

and is perpendicular thereto at the longitudinal center. line of the machine. The guide members 74am thus capable of a universal tilting move ment about the intersection of these two.axes.-

Rotary movement of the sector 120 in itsslotted guideways is effected by a treadle 1'36 fulcrumed at 138 in the base of the machine and connected by a rod 140 which extends upwardly through the standard 10 to a lever fulcrumed upon a pin 152 carried within the upper portion of the stand ard 10. The treadle 136 is normally held upby a spring 137. Upon the free end'of the lever 150' is formed a gear sector 154 (Figs. 2 and 4)., Meshing with the sector 154 is a; pinion 156 car ried upon the end of a shaft 158; the forward end of which is journaled'i'n a depending portion 160 of the bracket 134and the rear portion of which is journaled in a bearing 162 formed in a bracket carried byv the standard 10. Secured upon the forward end of the shaft 158is a crank 164 having Iformed in it a slot 166 within which is slidably mounted a block 168 (Fig. 3). 'Pivotally mounted upon a pin 169 extending from the block 168-is a collar 171 having a pair of spaced ears which carry a pin 1'73. One end of a connectingrod is pivoted upon the pin 173. The opposite I pinion 7156 are so slipping the gage members block 168 may be clamped in any desired p0si-.-

tion-of adjustment in the slide 166 by means of a clamping. screw 174 which is' threaded uponthe pin .169 and which serves to adjust the effective throw of the'x'crank 1'64 and thereby to determine the extent .of'imovement of'the sector 120 for ac complete turn of the shaft 158.' It is desirablein each operation to effect one complete rotation of 1 the: shaft 158, and the gear sector 154 and. the

pression of the treadle 136 will eifect .a"complete rotation "of- 'the shaft .158. 'In orderto avoid undesigned that a complete -de-fl-:

desired reverse movement of the sector120astthe treadle is returned toits normalposition byther spring 13'7f or in case the'operator should inadvertently release his" pressure on the treadle136-f before completing the operation, the pinion .156 1 is connected to the shaft 158 byimeans of a'pawl 1'76'which engages aratchet formed in-the' pin-\- ion 156 so'that rotationiof the pinion 156 inone direction will be communicated'to the shaftx158 but in' the opposite direction will effect merelya-i of the pawl "1'76 without rotating the shaft. The pawl 1'76 is held in engagement with the above-mentioned ratchet by means of a spring 1'78 surrounding the shaft 158 andretaine'd'by a 1 collar'180 upon the end of the shaft 156.

As above stated, the bracket 90 is mounted forv up-and-down movement relatively to the bracket? 184... This is accomplished by means of'a guide rod 182'which is secured toand depends from the bracket 90. Formed in the bracket 184 is a guide-' way 186 within which the rod 182 is slidably mounted Y for non-rotary reciprocation. For 'th'e purpose of holdingthe bracket 90 in its lowermost position, there is provided a compression spring 188 surrounding the lower portion of the rod 182 and interposed between the lower end of the guideway 186 and a collar 190 secured upon the lower end of the rod 182. It is desirable when reciprocal within a guideway196formed in the slotted guide sector 128. A compression spring 198' withinthe guide member urges the plunger 194" laterally toward'the shoe. Carried upon the end of the [plunger 194 is a fiat abutment-plate 200 which bears against a roll 202 which is ournaled in the lower end'of the adjacent lever 84. It is evident'that by'this arrangement the pressure-of the spring' 198 will be trans- 74 are raised into operative, position to'insure against any likelihood ofjtheir mitted by the plate 200 and roll 202 to one of the levers 84 and also through the gear sector levers 108 to the other lever 84. Ratchet teeth 204 are] formed in the plunger 194 and areiengaged by a" pawl 206.pivotally mountedupon' the slotted sector 128. The pawla206 isnormallyheld out of engagement with the ratchet teeth 204 by means of a lever 208 pivotallymountedaat,210upon-the adjacent lever 84. The lever 208 is provided with a bell-crank extension 212 which is normally engaged by a screw 214 adjustably threaded into the bracket 90. When the bracket 90 occupies its lowermost or inoperative position, the screw 214 tends to hold the lever 208 in such a position that the lower end of the lever engages a projection 216 on the pawl 206 to hold the pawl out of engagement with the ratchet teeth. Upon raising the bracket 90 the screw 214 permits the long arm 208 of the lever to drop under the influence of its own weight and this permits the pawl 206 also to drop under the influence of its own weight (aided by light spring pressure) and thereby to engage the ratchet teeth 204. The disposition of the ratchet teeth in relation to the pawl is such as to permit the spring 194 constantly to exert a closing action upon the gage mem-.- bers '74 but to prevent any opening movement of the gage members when they are raised to operative position.

As thegage members 74 are tilted laterally of theshoe by the sliding of the sector 120 in the slotted guide members 128 and 130, it is desirable, for reasons which later will be made apparent, to vary "the tilting of theshoe in a direction which is longitudinal and heightwise relatively to the shoe... This compensatory variation v is effected by tilting the guide members 128 and 130 about their trunnions 129 and '131 respectively. The axisof the trunnions 129 and 131'is positioned substantially in the plane of the lower edge of the abrading belt 20 and is substantially tangential to the curvatureof the belt at thelongitudinal centerline of the machine, so that the heel breast of the shoe will tilt about its point of I engagement with the gage 73, as shown'in Fig. 8;without requiring any substantial amount of forward or rearward movement of the shoe.

226, respectively. A pair of compression springs 227, one of which is shown in Fig. 3 are employed to urge the guide members in a counterclockwise direction, as seen in that figure, to hold the roll 218 against its cam. For purposes of adjust ment the twov surfaces 224 and 226 are movable relatively each to the other. 224 is formed upon a link 228 which is secured at one end by means of a pin 230 to a bar 232 and.

at the opposite end by means of a pm 234 to a link 236. The cam surface 226' is formed upon a link 238 which at one end is pivoted-upon the pin 230 and at the other end is pivoted to a pin 240' carried by a link 242. of the 1inks 236 and 242 are pivotally mounted The opposite ends upon a pin 244. The opposite end of the bar 232 is slotted to accommodate the pin 244 and is secured to a block 246 which is pivotally mounted for vertical swinging movement about a pin 248 carried by a bracket 250 mounted upon bracket 66. The intermediate portion also of the bar 232 is secured to the block 246 by a screw-249. ment of the inclinations of the cam surfaces 224 and 226 is eifected by means of a screw 252 threaded through a boss 251 formed in the bar 232 and engaging the pin 244. It is evident that adjustment of the screw 252 to move the pin 244 to the right, asviewed in Figs. 2 and 9, will serve to increase the inclination of the cam Such tilting is accomplished automatically by meansof a cam The cam surface Adjust-- surface and thereby toincrease the compensa-v tory tilting of the guide members 128 and 130 and thereby of the gage members 74. A reverse adjustment will serve to decrease the compensatory tilting. The block 246 is normally retained in operative position by means of a pin 254' which extends through the bracket 250 and the block 246. It is desirable to provide'for readily swinging the block 246 about the pivot 248 in order to facilitate the replacement of the abrading belt. For this purpose the pin 254 is made readily re movable and is provided with a knurled end 255 to facilitate withdrawal.

As has already been stated, the gage members 74 serve to determine the tilt of the shoe in a longitudinal and heightwise direction. In order to supplement this function of the gage members 74, there is provided another gage member in the form of a downwardly extending rod 256 (Fig. 3)

having a ball-shaped end 258 for engagement the compensatory variation of tilt of the gage members 74 as the latter are tilted bythe cam roll 218. The rod 256 is slidably mounted in a guideway 260 formed in the bracket 68. In threaded engagement with the rod 256 is a collar 262 carrying a pin 264 which is engaged by a slotted lever 266 fulcrumed upon a pin 268. An extension 270 of the bracket 68 supports the pin 268. The lever 266 is provided with a bell-crank arm 272 which is connected by a link 274 to an extension 276 of the slotted guide sector 128. The rod 256 is provided with a knurled head 278 to enable it to be adjusted upwardly and downwardly relatively to the block 262. Interposed between the head 278 and the block 262 is a compression spring'280 for holding the rod 256 in its adjusted position. In order to render the link 274 readily removable from its pivotal connection to the extension 276 for the purpose of enabling the abrasive belt to be removed and replaced, the end of the link 274 is hook-shaped and engages a pivot pin 282 which is normally held in looking engagement with the above-mentioned hook by means of a spring 288 but which may be pressed to the right as shown in Fig. 4 to release the hook for upward swinging movement. It is evident that the above-described arrangement insures that the gage rod 256 will be moved upwardly or downwardly as the guide sector 128 tilts about its trunnion thereby coordinating the setting of the gage rod 256 with the gage members 74 as the tilt of the latter is varied by the cam roll 218.

In the operation of the machine a shoe S having a heel Hispositioned by the gage mechanisms above described for presentation of the breast surface of the heel H to the abrading belt. The shoes may be mounted upon a last L, as shown in Fig. 8. The breast line of the heel is indicated by the reference character B (Figs. 4 and 7). The operator first introduces the heel H between the gage members 74 which, as above stated, yield to permit the entrance of the heel and which exert pressure against the lateral edges of the heel by reason of the springs 94 and 198. The flanges 76, acting upon the tread surface of the heel H, function as gages to determine the angular relation of the heel-breast surface to the abrading belt 20 in a direction which is lengthwise and heightwise of the shoe. The flanges 76 are assisted in this gaging function by the gage rod 256, the ball end 258 of which engages the bottom of the time upon shoes comprising a scouring ,tQoL-and a pair of. gage members for positioninga heel of forepart of the shoe. The operator now, with the upward pressure of his hands, raises the shoe, forcing the gage members 74 upwardly against the compression of the spring 188, until the shank portion of the shoe is stopped'by the gage '73. .The operator then presses the gaged shoe forwardly to bring the breast surface into engagement with the belt 20. Fig.4 shows the shoe in its initial position of presentation to the abrading belt 20 without lateral tilt. It is evident that in this position the greater portion of the heelbreast, surface will engage the abrading belt. However, the shank of the shoe, owing to its transverse curvature as shown by the breast line B, will engage the gage '73 tangentially, leaving on each side of the point of tangency a narrow tapering portion of the heel breast surface unexposed to the action of the abrading belt. In order .to present these unexposed portions also to the abrading belt, the operator. causes the shoe to be rocked transversely, first to one side and then to the other, by depressing the treadle 136. The position of the shoe when completely tiltedto one side is shown in Fig. 7.

, Itwill be remembered that the lateralpressure of the gage members 74 against the heel is .derived from the springs .94 and 198. As the shoe .is tiltedwhile in the grasp of the operator, the springs 94 and 198 would tend to yield and per.- mit the gage members 74 to separate and loosen their'hold upon the. shoe if it were not for the above-described mechanism comprising the pawl 2.06. This mechanism operates automatically, as the shoe is raised, to prevent ,the gage members from spreading.

. It will be noted, when the shoe is tilted to one side, as shown in Fig- '7, that, owing tothe convex cu vature. of the form block over whichthe belt 20 travels, the lateral edge of the heel-breast surface will make a different .angle in relation to theabradingbelt 20 than the central portion of the heel-breast; sur ace. It. is for the. purpose oi correcting this and preventing the corners of the h el re st f om being scoured off t at th compensatory adjustment bythe cam mechanism comprisi g the. roll 218-and the cam surfaces-224 an 2.26.15 prov d d,- s already d scrib d, a fu l depression of the treadle will effect aeomplete rotat on of theuerankulfi andthereby serve tilt the shoe first in one direction and-then in the ot er. and finall back to, its ori i positi n, whereupon the op ation is .o mplete. Th sh i then removed f om th ease and the pr ssur pon the trea le r lea ed, l avin th e s m hanism in readiness for operation upon another 7 shoe.

. Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States isg l. A heel-breast scouring machine comprising a tool-adapted to scour heel breasts, a pair of v gage members constructed and arranged yieldably to engage'the lateral edges respectively of a heel to position the breast surface of the heel relatively to said scouring tool, and means for preventing relative separation of said gage members to maintain them in gaging relation to a heel which has been inserted between them.

A heel-breast scouring machine comprising a ou n tool. and sa e ean con u d an arranged to engage both lateral edges and also the tr ad surface of a heel to posi on the breast surface of the heel relatively to said scouring tool. A machine ifor periormineseourins; operaa shoe relatively to said scouring tool, one of said gage members having a pair of flanges .adapted tobear against one lateral edge of the heel and against the tread surface of the heel respectively, and the other gage member having .apair, oi

flanges adapted to bear against the opposite lat.- eral edge of the .heel and against the tread surface of the heel respectively. a

4. A heel-breast scouring machine comprising a scouring tool, means for positioning a heel with its breast surface in a predetermined position relatively to said scouring tool, and a-support for saidpositioning means constructed and arranged .to enable the positioning means to be tilted trans.-

versely of the heel to present all portions of the heel-breast surface to said scouring tool.

5.. A heel-breast scouring machine comprising a scouring tool, ,meansfor maintaining axheel ,of a shoewith theheel-breast surface ina .pre-

determined angular position relatively to said scouring tooLand means for tilting said main.-

' tain n means transversely of the shoeto enable all, portions of the heel-breast surface to be presented to the tool.

6. A heel-breast scouring machine comprising .a scouring tool, ,a gage for positioning acshoe relatively tosaid scouring tool to cause thetool to operate upon a portion of the heel-breastsurrface at a predetermined angle to the tread suriae of the he l. and means for tilting said ga t0 oo th shoe transversely, thereby enablin additional portions of the heel-breast surfaceto en a e the scourin toolwhich, additional p tio would otherwise, beeauseof the transverse-curvature of, the shank of the shoe, be inaccessible to said scouring'tool.

7 A heel-breast scouring machine comprisin a s o r tool, a e fo p sitionin a ho r lati e to sa d sc ng tool to cause the .tool to r t pon a port on o the hee ebrea t surfac at a p de erm d a g to th tread surfaceof the heel, a support for said gage, said support havng an a ou sl w hin wh ch th aeedsh ma extend en thwi e, a sui eway for said slide, an means or roc n sa a e suppo t about. h e n r o aid l d and sve selyof the. eased h eto na e addi ona port ns of the heelre fa e o nga e aid s ur ng tool, which additional Iportions would otherwise, because of the transverse curvature of the shank of the shoe, be inaccessible to said scouring tool. r

8. A heel-breast scouring machine comprising a scouring tool, a pair of gage members engageablerespectively with the lateral edges of the heel of a shoe, each of said gage members beingjalso engageable with the tread surfaceof theheelfi for positioning the heel relatively to said scouring tool to cause the tooltooperate upon a portion of the heel-breast sur ace at a predetermined angle to the tread surface of the shoe ,:and means for tilting said gage members to rock the shoe transversely, thereby enabling additional portions of the heel breast surface toengage the securing tool, which additional portions would otherwise,

3 because of the transverse curvature of the shank of the shoe, be inaccessible to saidscouring tool.

9. A heel-breast scouring machine comprising a scouring tool having a convex working surface substantially complemental to the curvature of "a -br a to be ou ed. a ease r pos tion n a hoe re ati e to sa sc uring-t o t o u thet ol to perate up n .a portion of th gheel breastv surface at a predetermined an le .tozth tread surface of the heel, means for tilting said gage to rock the shoe transversely, thereby enabling additional portions of the heel-breast surface to engage the scouring tool, which additional portions would otherwise, because of the transverse curvature of the shank of the shoe, be inaccessible to said abrading tool, and means for tilting said gage to rock the shoe in a longitudinal and heightwise direction to compensate for the variation in said predetermined angle, which variation would otherwise result from the convexity of the working surface of said scouring tool when the shoe is rocked transversely.

10. A heel-breast scouring machine comprising a scouring tool having a convex working surface substantially complemental to the curvature of a heel breast to be scoured, a gage for positioning a shoe relatively to said scouring tool to cause the tool to operate upon a portion of the heelbreast surface at a predetermined angle to the tread surface of the heel, a support for said gage constructed and arranged for universal tilting movement of said gage, means for tilting said gage support to rock the shoe transversely, thereby enabling additional portions of the heel-breast surface to engage the scouring tool, which additional portions would otherwise, because of the transverse curvature of the shank of the shoe, be inaccessible to said scouring tool, and means operated by said transverse tilting means for tilting said gage to rock the shoe in a longitudinal and heightwise direction to compensate for the variation in said predetermined angle, which variation would otherwise result from the convexity of the working surface of said scouring tool when the shoe is rocked transversely.

11. A heel-breast scouring machine comprising a scouring tool having a convex working surface substantially complemental to the curvature of a heel breast to be scoured, a gage for positioning a shoe relatively to said scouring tool to cause the tool to operate upon a portion of the heel-breast surface at a predetermined angle to the tread surface of the heel, a support for said gage constructed and arranged for universal tilting movement, means for rocking said gage support, and thereby the shoe, in a direction which is transverse relatively to the shoe to enable additional portions of the heel-breast surface to engage the scouring tool, which additional portions would otherwise, because of the transverse curvature of the shank of the shoe, be inaccessible to said scouring tool, a cam roll carried by said gage support, and a cam engageable with said roll and constructed and arranged to tilt said gage support, as the gage support is rocked transversely, in a direction which is longitudinal and heightwise relatively to the shoe to compensate for the variation in said predetermined angle, which'variation would otherwise result from the convexity of the working surface of said scouring tool when the shoe is rocked transversely.

12. A heel-breast scouring machine comprising a tool adapted to scour heel breasts, a pair of gage members engageable with opposite sides respectively of a heel for positioning the breast surface of the heel relatively to said scouring tool, and means for urging said gage members yieldingly toward each other to cause them to press against the heel.

13. A heel-breast scouring machine comprising a tool adapted to scour heel breasts, a pair of gage members engageable with opposite sides respectively of a heel for positioning the breast surface of theheel relatively to said scouring tool, means for urging said gage members toward each other to cause them to press against the heel, and means for coordinating the movements of said gage members constructed and arranged to maintain said gage members at equal 5 distances respectively from a fixed center line.

14. A machine for performing scouring operations upon shoes comprising a scouring tool, a .pair of gage members engageable with opposite sides respectively of a shoe for positioning a 10 surface of the shoe relatively to said scouring tool, resilient means for urging said gage members toward each other to cause them to press against the shoe, and positive means for holding said gage members pressed against the shoe 15 during manipulation of the shoe.

15. An abrading machine comprising an abrading tool, a gage for positioning a portion of a work piece in a predetermined angular relation to said abrading tool, and means for tilting 20 said gage about an axis which is substantially perpendicular to the working surface of the abrading tool at a locality of engagement between the work piece and the abrading tool, to enable other portions of the work piece to be 25 presented to said abradingtool.

16. An abrading machine comprising an abrading tool, a gage for positioning a portion of a work piece in a predetermined angular relation to said abrading tool, said gage being con-I structed and arranged for relative sliding movement of the work piece to enable the work piece to be moved into and out of engagement with said abrading tool, and means for tilting said gage to enable other portions of the work piece to be presented to said abrading tool while maintaining said predetermined angular relation between said other portions of the work piece and said abrading tool.

17. A machine for performing scouring opera- 40 tions upon shoes comprising a scouring tool, a

pair of gage members constructed and arranged to engage the heel and the forepart respectively of a shoe to position a surface of theshoe relatively to said scouring tool, means for support- 45 ing said gage members to enable the setting of each gage member to be varied, and connecting means between said gage members constructed and arranged to coordinate the settings of said gage members. v 60 i 18. A machine for performing scouring operations upon shoes comprising a scouring tool, a pair of gage members constructed and arranged to engage separate portions respectively of a shoe to position a surface of the shoe relatively to said scouring tool, and mechanism including a cam for varying simultaneously and in coordinated relation to each other the settings of said gages respectively.

19. A machine for performing scouring oper- 60 ations upon shoes comprising a scouring tool, a

'pair of gage members constructed and arranged to engage the tread surfaces of the heel and the forepart respectively of a shoe to position a sur-- face of the shoe relatively to said scouring tool, 05 means for varying the setting of one of said gage members, and connecting means between said gage members constructed and arranged to coordinate the setting of the other gage member with the variation effected by said varying 70 means.

20. A heel-breast scouring machine comprising a scouring tool, a gage constructed and arranged by engagement with the heel of a shoe --to determine the longitudinal heightwise inclina- '75 tion of the shoe, a supplemental gage engageable with the bottom of the forepart of the shoe to assist the first-mentioned gage in determining the longitudinal heightwise inclination of the shoe, means for varying the setting of one of said gages, and means for automatically coordinating the setting of the other gagewith the variation effected by said varying means.

21. A heel-breast scouring machine comprising a driven scouring belt, a pair of gage members constructed and arranged to engage the lateral edges respectively of a heel to position the breast surface of theheel relatively to said scouring belt, and a support for said gage members constructed and arranged to enable said gage members to be moved transversely of said scouringbelt from a position wherein the gaged heel is at a side of said scouring belt to a position wherein the breast surface of the gaged heel can engage said scouring belt.

22. A heel-breast scouring machine comprising a scouring tool, a pair of gage members constructed and arranged to engage the lateral edges respectively of a heel to position the heelbreast surface relatively to said scouring tool, and supporting means for said gage members constructed and arranged to enable said gage members to be moved from a position wherein the breast surface of the heel does not engage the scouring tool to a position wherein thebreast surface of theheel engages the scouring tool.

23. A heel-breast scouring machine comprising a scouring tool, a pair of gage members constructed and arranged to engage the lateral edges respectively of a heel to position the breast surface of the heel'relatively to said scouring tool, and a support for said gage members constructed and arranged for relative movement between said scouring tool and said gage members from a position wherein the breast surface of the gaged heel does not engage said scouring tool to a position wherein the breast surface 20 V of the gaged heel engages said scouring tool. FRED ASHWORTH.

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