US1898889A - Heel building machine - Google Patents

Description

Feb. 21, 1933. DJPARKS HEEL BUILDING MACHINE Filed Jan. 9, 1931 4 Sheets-Sheet l Armemax Feb. 21,1933. D. PARKS HEEL BUILDING MACHINE Filed Jan. 9, 1931 4 Sheets-Sheet 2 a Y. mm M NE W 60 T WP m M M 5 0 K V\A a H x Q; 0 v 8: 3 ma 3- D. PARKS 1,898,889

' HEEL BUILDING MACHINE Filed Jan. 9, 1951 4 Sheets-Sheet 3 EYMJW 41-1-0 fA/E Y Feb. .21, 1933. D. PARKS 1,898,889

HEEL BUILDING MACHINE Filed Jan. 9, 1931 4 Sheets-Sheet 4 Patented Fel 2.1, 1933 DENNIS PARKS,

ST. LOUIS, MISSOURI HEEL BUILDING MACHINE Application filed January 9, 15331. Serial No. 507,570.

This invention has for its general object to provide a novel machine for use in cementing rubber heels to base-lifts or heel blanks.

The invention has its preferred embodiment in a machine afi'ording a table, paste applying device and a rotatable circular carrier having a series of compressing devices arranged at equal intervals around its circumference, with means under the control of the operator for rotating the carrier in stages, a support for enabling the operator to correctly position the assembled lifts and rubber heels between the compressing devices, a device for removing the heels from the compressing devices and means operating in each stage of rotation of the carrier to release a compressing device and permit the removal of the heel or heels therefrom While permitting another compressing device to automatically clamp a heel, or preferably a pair of heels, placed therein.

The rotatable carrier comprises two circular members operatively mounted on a central shaft, and one of the objects of the invention isto provide means for adjusting one of the circular'i'nembers of the carrier toward or from the other member to vary the width of the space between the members of each of the compressing devices according to the height of the heels being formed.

Other objects of the invention are, to provide means for adjusting the position of the rotatable carrier on its shaft in order to cause the compressing devices, as they are brought by the rotation of the carrier in order to the starting point, to be arrested at a proper position relative to a support on which the heels are positioned preliminary to the engagement of the heels by the compressing devices; to provide novel means'for removing the heels from the compressing devices; to provide novel means for operating the compressing devices; to provide novel means for rotating the circular carrier in stages under the control of the operator.

Another object of the invention relates to a novel support for positioning the heels relative to the compressing members, which support is preferably formed as an integral part of the heel removing device and also affords the functions of a and shaper.

Still further objects of the invention relates to details of construction and to combinations and operations of parts, all of which will be more clearly understood from the detail description to follow.

In the accompanying drawings: 1

Fig. 1 is a combined plan and horizontal sectional view, the table of the machine being shown in plan, and partly broken away to better illustrate the construction, and the combined carrier and compressor being shown in section;

Fig. 2 is a sectional side elevation taken on the line 2-2 of Fig. 1;

Fig. 3 is a detail view on an enlarged scale of the mechanism by means of which one of the members of the carrier is ad justed toward or from the other;

4 is a plan view on an enlarged scale illustrating apart from the remainder of the machine certain mechanisms entering into the adjustment and operation of the carrier;

Fig. 5 is a view in side elevation of the lower portion of one member of the carrier and part of the stop and adjusting mechanism associated therewith;

Fig. 6 is a fragmentary view of a portion of the machine shown in Fig. 2, illustrating the position of parts with the carrier at rest;

Fig. 7 is a view in side elevation on an enlarged scale of the heel former;

Fig. 8 is a plan view of the same; and

Fig. 9 is a cross-section on the line 9-9 of Fig. 8.

Referring now to the drawings the numeral 1, Fig. 1, indicates one of the side frame members, that shown by dotted lines at the left of Fig. 2, and the numeral 2 a corresponding frame member at the opposite side of the machine. These frame members are connected together at the front and rear by cross-rods 3 and spacing members i in the usual manner. lvlounted in bearings 5, 6, Fig. l, on the frame members 1, 2, is the main operating shaft 7, having on one end a pulley 8, by means of which it may be driven.

My improved combined carrier and heel compressor is operatively mounted on this shaft and its construction will now be described, referring particularly to Figs. 1 and 2.

The numeral 9, Figs. 1 and 5, indicates one member of the circular carrier, said member being in the form of a wheel having spokes 10, and having projecting from one side an elongated sleeve 11 rotatably encircling the shaft 7, and the outer end of which is screw threaded, as indicated at 12. The peripheral portion of wheel 9 provides a circular flange 13 on which, at equal intervals around the circumference of the wheel are secured a number of pressure plates 14 by means of screws 15. These pressure plates are of the general shape of a heel lift and are convex on their inner sides, as indicated at 16, to enable them to conform to the shape of the randcd side of a lift.

The numeral 17 indicates the other member of the carrier which likewise is in the form of a wheel, as shown in Fig. 2, having spokes 18 radiating from a central hub, or sleeve, 19, which is mounted on the sleeve 11, Fig. 1. The numerals 20, Figs. 1 and 2, indicate a series of arms which are pivotally mounted on the outer side of the circular member 17 In practice there are eighteen of these arms, and as shown in Fig. 1 they radiate at equal distances apart from a circle at the center of member 17 concentric with the periphery of said member. The .arms 20 are pivotally mounted on member 17 of the carrier in the following manner:

Each of the arms 20 is provided toward its outer end and on its inner face with a circular boss 21, which is adapted to have a rocking fit in a circular groove 22, which is provided in a circular flange 23 forming the outer part or body of the member 17 and with which and the sleeve 19 the spokes 18 are preferably cast'integral. Extending through the arm 20 and the boss 21 is an aperture 24, which loosely receives the threaded stem of a bolt 25, which at its inner end is screwed into the flange 23. Formed integral with the spokes 18, on the inner face of the latter, is a fiat circular portion, or ring, 26, in which is mounted at intervals corresponding to the spacing of the arms 20 a series of bolts 27, each of which projects through an aperture in an arm 20 between its inner end and its point of pivotal connection at 21, and is provided at its outer end with an adjusting nut 28 which bears against the outer face of the arm. Surrounding each bolt'27 is a coil-spring 29, which is a push-spring, that is, it is normally under compression, and tends to push the inner end of arm 20 outward. The outer end of each of the arms 20 is provided with an aperture 30 which loosely receives a bolt 31 secured in a pressure plate 32 which corresponds in shape, design and size with the pressure plates 14, directly opposite one of which it is located. A nut 33 is secured on the outer end of bolt 31, and is so adjusted as to permit free movement of the bolt 31 in aperture 30, so that in the compressing operation the pressure plate 32 may adjust itself in position on the base-lift against which it is pressed. The circular members 9 and 17 of the carrier are prevented from rotation relative to each other by means of a clamp 34, Fig. 1, which is secured on one of the spokes 18 and slidably embraces an opposite spoke 10 of the member 9. Thus, while the members 9 and 17 rotate as a unit, the member 17 is free to be adjusted toward and from the member 9 by reason of the slidable engagement of the clamp 34 with the spoke 10. The carrier, with the compressing devices thereof are adapted to be rotated in stages, and the mechanism for effecting such rotation will now be described, referring to Figs. 1, 2 and 4.

The numeral 35 indicates a ratchet wheel which is mounted for rotation on the sleeve 19 of circular member 17. Mounted on one of the spokes 18 is a plate 36 carrying a detent 37 which is adapted to engage the teeth 38 of ratchet wheel 35. A coil-spring 39 normally tends to draw plate 36 inward, but said plate is free to move outward to permit the detent 37 to ride over the teeth of the ratchet wheel in the movement anticlockwise of the latter, as indicated in Fig. 2. Projecting from the rim of the ratchet wheel 35 beyond the teeth 38 is an arm 40, on the outer end of which is rotatably mounted a roller 41, which is adapted to bear against and ride over the outer sides of the inner ends of arms 20, which are provided with a smooth surface for this purpose, as indicated at 42. The roller 41 travels in a circular path so positioned relative to the vertical center of the carrier that the inner ends of the arms 20 will be forced inward by the roller as the latter engages them, as will be clearly evident by comparing the relative positions of the two arms shown in Fig. 1. Extending radiallv outward from the ratchet wheel 35 is a cran arm 43 to the outer end of which is pivotally connected, at 44, the upper end of a pullrod 45, shown in section in Fig. 4. The lower end of pull-rod 45 is pivotally connected, as indicated at 46, to a foot-treadle 47 intermediate the ends of the latter, said foot-treadle being pivotally mounted at its inner end on one of the spacing members 4 of the frame located near the bottom thereof. A coil-spring 48 connected at its lower end to the pivot 46 at its upper end to a suitable stationary part of the machine tends normally to hold the outer end of treadle 47 in a raised position. Mounted on the outer'side of pull-rod is a catch 49, which normally occupies somewhat above the upper ed 'e of a substantially horizontally disposed arm with which the catch is adapted to engage when the treadle 47 is depressed. As shown in Fig. 4, the arm 50 is one member of a U-shaped lever having a flat base 51 and a second arm 52 parallel with arm 50. The arm 52 is provided toward its outer end with a recess 53 which is adapted to be brought into engagement in order with the seriesof screws 15, the heads of which project from the rim of the circular member 9 near the periphery thereof. In order to provide for a yielding movement of the arms 50 and 52, the base 51 is mounted on a pair of bolts 55which are in turn mounted in the base 56 of a substantially U-shaped frame having a long arm 57 and a short arm 58, the base 56 being considerably wider than the base 51. The bolts 55 project inwardly through the base 51, which loosely engages them, and mounted on each of said bolts is a coil-spring 59 held under tension by an adjusting nut 60. The power of the springs 59, bearing on the base 51, is sufiicient to hold the arms 50 and 52 in a substantially horizontal position. When the catch'49 engages the upper edge of arm 50 the latter and arm 52 may move downwardly, the base 51 pivoting on bolts 55 against the resistance of springs 59. When the catch 49 is released from engagement with arm 50 by being moved upwardly, springs 59 will at once restore the arms 50 and 52 to their normal position which is that of being slight.y upwardly-inclined, as indicated. The purpose ofdepressing arm 50 is to release the recess 53 of arm 52 from engagement with one or the other of studs 54, and when the catch 49 releases engagement with arm 50, the springs 59 will cause arm 52 to yieldingly engage the next stud, as the carrier is rotated, so that recess 53 will snap into engagement with this stud as soon as the latter is moved to a position over said recess.

In the use of the machine a rubber heel has paste applied to its inner surface, a base-lift, that is to say, a lift, or one or two united lifts having a rand applied to one side, then has its flat side applied to the pasted surface of the rubber heel and the assembled members, constituting a heel, are then placed in position on a support 61, in position between two of the pressure plates 14 and 32, which are arrested in proper position relative to said support by engagement of the recess 53 of arm 52 with one or the other of the studs 54. After the carrier is operated through nearly a complete cycle of movement, in a manner to be later described, each clamping arm 20, in order, is moved outward to release pressure on the heel and the latter is caused to be removed from between the pressure plates, 14 and 32, by means of being brought into engagement with the under side of two inclined bars 62 formed on the lower portion of, and integral with the support of heel-former 61. The construction of this combined support and heel-former will now be described, referring to Figs. 2, 6, 7 and 8.

The numerals 63 and 64 indicate two simi lar castings, each of which is formed as an integral structure'and comprises a curved plate 65 projecting inwardly from about the center of which is an angle bar 66, on the under side of which is a sleeve 67. Projecting outwardly, and connecting the inner end of this sleeve and the lower end of the curved plate 65 is one of the inclined bars 62, previously referred to. Each of the angle bars 66 is provided with an L-shaped recess 68 open on its outer side, and mounted in each of these recesses is a gage-block 69 which is of the length of the recess 68. Toward its inner end each of the gage-blocks 69 is loosely mounted on a counter-sunk screw 70, which latter is screwed into and through the bottom of the angle bar 66. Toward its outer endeach gage-block 69 normally pressed outward, i. e., upward, by a coilspring 71, seated in said angle bar and in a re4ess in the gage-block. By turning down the screws 76 the gage-block will be de pressed in its recess in order to adjust the ieight thereof relative to the upper edge of the angle bar. By unscrewing screw 70 the gage block may be raised until it is flush with the upper edge of the angle bar. Each of the gage-blocks 69 has its upper surface on its inner side cut away, or otherwise provided with a longitudinal depression 72, providing a ridge 73 along its outer edge portion. The purpose of this construction will be presently described.

The two castings above described and constituting the support 61 are mounted in the machine by passing a cross-rod 74 through the sleeves 67 of the castings, the cross-rod being secured at opposite ends in the side frame members of the machine. W' hen so positioned, the under side of one of the curved plates 65, that the right, as shown in the lower part of Fig. 1, rests upon the periphery of the flange, or ring, 23, pre viously referred to, on which the arms 20 are pivotally mounted, while the other curved plates 65 engage under the inner circumferential edge of theilange 13 on whicn the pressure plates 14 are mounted. The first named curved plate 65, that is the one shown at the right in Fig. 1, is provided to-- ward its upper end and on its uneer side with an inwardly extending lug '2' 5, which extends under and hence supports the upper end of the curved plate at the left. This lug also serves as a guide to insure the which the carrier works.

proper surface alignment of the two plates.

On the inner side and flush with the inner edge of the curved plate 65, having the lug 7 5, and near the lower end of said plate, is a projection 76, the outer side of which is in line with the inner side, or end, of the lug 75. The lug and projecton 76 bear against the inner face of the ring, or flange, 23, so that said curved plate 65 in the inward movement of circular member 17 in the adjustment thereof hereinafter described, will bear against said lug and projection and move the casting 64 inward, in which movement its sleeve 67 will slide over cross-rod 74. The two castings 63 and 64 are held in spaced relation, that is, they are normally pressed apart by means of a leaf spring 77, interposed between the two angle bars 66, and which therefore serves to constantly hold the curved plate 65 of casting 63 in contact with flange 13 and the lug 7 5 and projection-76 in engagement w th ring 23. In order to maintain a quantity of rubber heels and base-lifts in convenient reach of the operator, and to facilitate applying paste to the rubber heels, I provide the following arrangement.

The numeral 78, Figs. 1 and 2, indicates a table which is supported on the tops of the frame members 1 and 2 of the machine, said table being surrounded on. all sides, with the exception of its front side, with a wall 79, and being further provided about centrally of its length with an opening 80 through This opening is guarded on opposite sides of the carrier by walls 81 and 82. The rubber heels, in desired quantity, are piled on one end of this table, that is, to one side of the carrier, and the base-lifts are piled on the other end of the table. Located on the under side of the table below the opening 80, is a paste-roller 83, which is mounted on a shaft 84 extending cross-wise of the machine and mounted in suitable bearings 85 provided in the respective frame members 1 and 2. The shaft 7, previously referred to as having the carrier mounted thereon, is provided on the end opposite that having the pulley 8 with a small pulley 86 over which a belt 87 passes to a pulley'88 on one end of shaft 84. By this means the paste-roller is continuously rotated from shaft 7. Secured on the upper side of table 78, and covering the outer portion of the opening 80 is a plate 89 having a transverse opening 90, into which the upper surface of roller 83 projects.

Mounted above roller 83, in bearings 91, Fig. 1, on slidable standards 92, is a rubber roller 93, coiled-springs 94 encircling standards 92 and pressing against the under sides of bearings 91 and the plate 89. Adjusting nuts 95, on the bottom of standards 92, enable the operator to adjust the height of roller 93, relative to roller 83, according to the thickness of the rubber heels being used. Beyond the opening plates 89 is provided with two or more ribs 96 having their upper surfaces upwardly inclined in the direction of the carrier to facilitate lifting of the rubber heel from plate 89 after the paste has been applied to the under surface thereof by roller 83. Removably mounted on the under side of the table in a manner to surround the lower half of roller 83 is a semicylindrical paste container 97 This paste container is supported at one end by bar 98, pivotally mounted on the under side of the table at 99, Fig. 1, the other end of the bar being secured on the under side of the table by wing-screw 100. By loosening screw 100 and turning it to one side, as indicated by dotted lines in Fig. 1, thecontainer may be moved from its support at its other end, and the whole container removed when it is necessary to supply a fresh quantity of paste thereto.

The numeral 101, Fig. 2, indicates a chute supported in the frame directly in front of the carrier at the discharge point of the compression devices, so that as the heels are removed from the latter they will be directed downwardly by the chute into a suitable container positioned below it. The operation of the machine, as thus far described, is as follows:

The machine being in its arrest-ed position with one of the compression devices open and in the position relative to the sup port and heel-former 61, shown by Fig. 6, the operator passes a rubber heel between rollers 83 and 93, the latter roller applying paste to the inner or flat side of the heel and moving it out on the ribs 96. The operator then takes a leather base lift, applies it to the pasted side of the rubber heel and places the heel in the opening compressing device between the plates 14 and 32, with the randed side of the base-lift on the out side. In the same manner he unites the members of a second heel and places it in the same compression device with the other heel, so that the tread surfaces of the two rubber heels are in contact. He then places his foot upon the treadle 47 and depresses the same, which, through the medium of pull-rod 45 and crank-arin 43, rotates the ratchet wheel 35 and moves roller 41 off of the arm 20 of the compression device containing the heels, permitting the spring 29 to force said arm outward against the limit nut 28 and thereby move the pressure plate 32 inward to compress the two heels between said pressure plate and its complimental pressure plate 14. In Figs. 2 and 6, the compressing dcvice containing the pair of heels is further indicated for convenience by the reference letter A; and in Fig. 1, I have indicated by dotted lines two heels in position between the two pressure plates, the two outside base-lifts being indicated by the nu meral 102, and the two rubber heels by the numeral 103. In the further depression of the treadie 47 the catch 49 engages the upper edge of arm 50 and lowers the recess 53, on arm 52, out of engagement with the stud 54 (F5 gs. i and 5), with which it engaged.

In the downward movement of the treadle, the teeth of ratchet wheel 35 will have ridden over the detent 37, and as soon as the treadle is released, one or the other of the teeth of the ratchet wheel will engage said detent, and if the power of spring 48 is sufficient, which it ordinarily will be, the pull u n v L tnereoi will cause the carrier to be iotated in the direction shown by the arrow in Fig. 2. Fig. 2 illustrates this position of the parts and before the turning movement has been completed. As indicated by the dotted lines in this figure, the stud 5 1, following the stud 54, which has been released, will ride upon the upper surface of arm 52 until it has reached the recess 53, when said recess will be snapped into engagement with said following stud by the action of coil-springs 59, thereby arresting the motion of the carrier.

Preferably, I provide for rotating the car rier from the shaft 7 to supplement the action of spring as. To this end, I secure on the shaft a friction dislr 104;, Fig. 1, which is in frictional engagement with a central portion 10-5 of the circular member 9. is disk has a hub 106 and is secured on the shaft by means of a screw 107 passing through said hub and enga ing the shaft. dish 104: is constantly rotated by shaft 7, but engagement with the surface 105 is not sufficient in degree to cause it to overic nrtia of the carrier, and hence ii the latter is motivated by the action spring 4:8, as previously described, the riction disk will simplyslide over the surace 105 without rotating the carrier.

The number of teeth on the ratchet wheel corresponds to the number of arms 20, wh ch in the embodiment of the invention is eighteen; and the arc of movef roller L1 is such that in the comession of the treadle 47, said rolloli' of the inner end of one arm rest on the inner ends of the ceding arms, which is the posi- Hence it follows, that soves upward in synchronism airier, an open comp essing dealways be presented at the heeland the roller is moved downe the arm 2-0 of this compresswill still rest on the arm of de'ice to hold it e passing on the adjacent arm. "ve referred to the support 61 as a n hat is to say, device which,

5 in assembling the lifts of a heel blank en f 4. iint ables the operator to correctly position the lifts relative to each other. In the case of the device 61, this is effected by forming the inner sides of plates of a curvature to correspond with the curvature at the breast of the heel, so that when the rubber heel and base lift placed against these plates, their breast edges will be caused to lie flush with each other. As to the sides of the heel, they are correctly positioned by being placed on the ridges of gage blocks 69 and on the upper edges of the angle bars 66, which ordinarily are flush with each other. Some manufacturers, however, prefer to have the outer sides of the base-lift project slightly beyond the rubber heel, so that the outer edge of the base-lift may be subsequently trimmed down and polished. XV hen necessary to build the heels in this manner all that is required is to turn down screws 70 to lower the gage blocks a greater or less distance below the upper ecges of angle bars 66. As the rubber heels, when positioned on heel-former 61 restupon the uper ed 'es of these an le bars it follows that the leather base-lifts, which rest upon the ridges 73 of the gage blocks, will be caused to project a slight distance below the edge of the rubber heel. It will be understood, of course, that when using projecting baselifts, these latter are of greater sizethan the rubber heels; and the degree the gage blocks will be depressed is such as to produce an equal projection of the base-lift around the entire rubber heel.

I employ a quick drying paste or cement to unite the rubber heels and base-lifts, so that by the time a pair of compressed-heels has been carried around from the heelformer to the discharge device on the under side thereof, the paste will have set, and the heels may be removed.

The removal of the heels is accomplished automatically in the following manner:

As shown by Fig. 2,.the roller 41 rests upon the inner end of the arm 20 of a compression device about to be brought to rest at the heel-former 61 and on the arm 20 of the compression device immediately below it, which for purposes of identification will be further identified by the letter B. Hence, both of these compressing devices will be open. In the further upward movement of the carrier the heel in the compression device B, will engage the inclined bars 62 and will be held from movement while the compression device continues upward, thus passing from off of the heel and permitting the latter to fall into chute 101.

As is well-known, heels are made in various sizes, and when a larger or smaller heel than the one for which themachine has been previously used, is to be made, it is necessary to adjust the carrier circumferentially relative to the heel-former 61, so that when the pressure plates 14 and 32 are moved into engagement with the heels, their convex surfaces 16 will center on the randed sides of the base-lifts. This is effected in the following manner, referring to Figs. 2 and 4.

The long arm 57 of the frame carrying the U-shaped lever 50-52 is slidably mounted on the frame member 1 by means of slots 108 near opposite ends thereof engaging over headed bolts 109 screwed into the frame member. The arm 57 is normally drawn inward by means of a coil-spring 110, one end of which is secured to the bar at 111 and the other end to the frame at 112. Bar 57 projects outward beyond the front side of the frame member and has pivotally mounted in its projecting end an eccentric 113 provided with a handle 114. The eccentric normally engages the front edge of frame member 1, and by turning handle 114 downward from the position shown in Fig. 2 to a greater or less distance, the arm 57 will be forced outward, carrying the U- shaped lever 50-52 with it, and as recess 53 of arm 52 of this U-shaped lever is in engagement with a stud 54 of the carrier, it results that the carrier will be rotated in the direction of the arrow in Fig. 2 a desired distance. This adjustment of the carrier would result in bringing the compressing devices to rest at a higher elevation relative to the heel former 61 than had previously been the case, and would be made for a larger size heel. If now a smaller size heel is to be made the handle 114 would be turned upward a desired distance, and spring 110 would draw arm 57 inward, thereby turning the carrier in the reverse direction to that shown by the arrow in Fig. 2, so that the compressing devices, that is, the pressure plates 14 and 32 will in operation be brought to rest at a lower elevation relative to the heel former than was previously the case.

As heels also vary in thickness or height, it is necessary to be able to adjust the distance between the sets of pressure plates 14 and 32. This can be readily accomplished by adjusting the circular member 17 toward or from the circular member 9, whereby all of the pressure plates 32 will be simultaneously adjusted toward or from the pressure plates 14. Such adjustment I effect as follows:

Referring to Figs. 1, 2 and 3, the numeral 115 indicates an adjusting ring which is screwed onto the screw-threaded end 12 of the sleeve 11 of the circular member 9 and bears against the outer end of sleeve 19 of circular member 17. The ring 115 has a circumferential groove 116, in which is mounted a device 117 in the nature of a spanner wrench, having an operating handle 118. The ring 115 is provided around its periphery with notches 119, which are adapted to be engaged by a stud 120 on the wrench member 117. The latter fits loosely in the groove 116 of the adjusting ring and by grasping handle 118 and moving stud 120 out of one notch 119, and turning the wrench until it is brought into engagement with another, the ring 115 may be turned either to force member 17 of the carrier toward member 9, or it may be turned in the opposite direction to permit said members to separate a required degree. In screwing the ring 115 inward it will be forced against the outer end of sleeve 19 causing the latter to move inward over the sleeve 11. When ring 115 is turned outward, or unscrewed, the members 9 and 17 are separated by means of coil-springs 121 supported between the rim- portions 13 and 23 of the two circular members.

I have heretofore referred to a leaf spring 77 interposed between the two angle bars 06 of the heel former 61. From the description of the operation of the machine above given it will now be clear, and particularly from an inspection of Figs. 1, 6 and 7 that if the circular member 17 is adjusted so close to the circular member 9, that in the inward or clamping movement of the outer ends of arms 20 they are caused to engage the outer side of casting 64 of the heel former, the latter can yield to permit the full inward movement of the pressure plates 32, and when roller 41 moves or depresses the inner ends of arms 20, the leaf spring will force casting 64 outward to maintain contact of lug 75 and projection 76 with ring 23, as before described.

Referring again to the friction disk 104, I find it desirable to provide means for maintaining a yielding contact of this disk with the friction surface 105. To this end, I loosely mount on shaft 7 a collar 122, Fig. 1, which bears against the outer end of sleeve 11, and confine between this collar and an adjusting collar 123 a coil-spring 124. This collar 123 may be fixed on the shaft in any adjusted position by means of a binding screw 124*. The spring 124 is held by this collar under a certain degree of tension which exerts an outward push on shaft 7, thereby forcing the disk 104 into contact with the friction surface 105.

While I have described and illustrated my improved machine as applicable for holding under compression :1 rubber heel and a base lift having paste or cement interposed between them, and have shown each of the compressing devices as adapted to hold two of such heels, it will be understood by those skilled in the art that each compression device could be adjusted for com pressing single heels, and that, in principle, my machine could be employed for holding under compression full leather heels built up of lifts having paste interposed between them, and

be compressed,

such heels could be either of the straight or decked type.

While I have shown and described the preferred embodiment of my invention, 1 wish it understood that the same is not to be limited to the details of construction shown, or to the exact arrangement of the parts shown, except as may be required by certain of the claims as hereinafter made particularly specifying such construction and arrangements of parts.

I claim 1. In a machine of the class described, in combination with carrier rotatable in a vertical plane, a series of heel compressing devices mounted thereon, a support for the heels to be compressed, means for rotating said carrier in stages to bring the compressing devices in order to rest at said support, and means controlled by the operator for causing each compressing device to grip a heel placed on the supp rt and while in po sition thereon prior to the movement or" the carrier.

2. In a machine of the class described, in combination with a rotatable carrier, a series of heel compressing devices mounted thereon, a support for the heels to be compressed, means for rotating said carrier in stages to bring the compressing devices in order to rest at said support, and means controlled by the operator for causing each compressing device to grip a heel placed therein prior to the movement of the carrier, while opening the following compressing device.

3. In a machine of the class described, in

combination with a rotatable carrier, a series of heel compressing devices mounted thereon, a stationary heelformer, means for l rotating said carrier in stages to bring the compressing devices in order to rest at said heel former, and means controlled by the operatorfor causing each compressing device at the heel former to grip a heel assembled thereon prior to the movement of the carrier.

4. In a machine of the class described, in combination with a rotatable carrier, a stationary heel former, a series of heel compressing devices mounted on said carrier and having pressure members traveling in circular paths over, and at opposite sides of the center of said heel former, means for rotating said carrier in stages to bring the "I compressing devices in order to rest over said heel former, and means controlled by the operator for causing each compressing device at the heel former to grip an assembled heel prior to the movement of the can I rier.

5. In a machine of the class described, in combination wit a rotatable carrier, a series of adjustable heel compressing devices mounted thereon, a support for the heels to means for rotating said carrier in stages to bring the compressing devices in order to rest at said support, and means controlled by the operator for causing each. compressing device at the support to grip a heel assembled thereon prior to the movement of the carrier.

6. In a machine of the class described, in combination with a rotatable carrier, a stationary heel former having laterally yielding support, a series of adjustable heel compressing devices mounted on said carrier and having pressure members rotating over, and at opposite sides of the center of said heel former, means for rotating said carrier in stages to brin the compressing devices in order to rest over said heel former, and means controlled by the operator for causing each compressing device at the heel former to grip an assembled heel prior to the movement of the carrier.

7. In a machine of the class described, in combination with a rotatable carrier, a series of heel compressing devices mounted thereon, a stationary heel former having a support for the heels provided with adjustable gage bloclrs, means for rotating said carrier in stages to bring the compressing devices in order to rest said heel former, and means controlled by the operator for causing each compressing device at the heel former to grip an assembled heel prior to the movement of the carrier.

8. in a machine or" the class described, in combination with a rotatable carrier, a series of heel compressing devices mounted thereon, means for simultaneously adjusting the compression space of all of said compressing devices, a support for the heels to be compressed, means for rotating said carrier in stages to bring the compressing devices in order to rest at said support, and means controlled by the operator for causing each compressing device at the support thereon prior to to grip a heel assembled the movement of the carrier.

9. In a machine of the class described, in combination with a rotatable carrier comtvro circular members mounted to be rotated in fixed relation to each other, a series of compressin devices arranged at regula int rvals around the periphery of said carr each or" said compressin devices com n sing a stationary pressure plate mounted on one of said circular members and radial arm pivotally mounted on the other circular member and carrying at its outer end a pressure plate located directly oj i-pcsite s i" stationary pressure plate, means tei normally to press the inner ends of all of said radial arms outward, a support for the heels to be compressed, means for rotati g said carrier in stages to 2' ssing devices in order to i l 'l support, and a roller movable by the operator independently of said carrier through a given are over the inner ends of said radial arms, and adjusted in its movement to release the arm of the compressing device at the support to permit its spring to force its pressure plate into engagement with an assembled heel on said support, and then to pass on to the radial arms of the following two compressing devices to open the same, and means for causing said roller to move with the carrierto hold each compressing device in order to open while it is being moved to, and arrested in position at said support.

10. In a machine of the class described, in combination with a rotatable carrier, a series of heel compressing devices mounted thereon, a support for the heels to be compressed, means for rotating said carrier in stages to bring the compressing devices in order to rest at said support, means controlled by the operator for actuating the compressing device at the sup ort while releasing the following compressing device, and means operating in the next stage of movement of said carrier to remove the heel from said latter compressing device.

11. In a machine of the class described, in combination with a rotatable carrier, a series of spring operated heel compressing devices mounted thereon, a support for the heels to be compressed, means for rotating said carrier in stages to brin the compressing devices in order to rest at said support in open position, and means controlled by the operator for releasing the spring of each compressing device at the support to enable it to grip a heel assembled on the support prior to the movement of the carrier and in the same operation to open the following compressing device against the resistance of its spring.

12. In a machine of the class described. in combination with a rotatable carrier, a series of heel compressing devices mounted thereon, a heel former having a heel engaging member on its under side, means for rotating said carrier in stages to bring the compressing devices in order to rest at said heel former in open position, and means controlled by the operator for actuating the compressing device at the heel former to grip the heel assembled thereon while releasing the following compressing device, whereby, in the next movement of the carrier the heel in the latter compressing device will be removed therefrom by engagement with said heel engaging device.

13. In a machine of the class described, in combination with a rotatable shaft, a carrier loosely mounted thereon, a series of heel compressing devices mounted on said carrier, a support for the heels to be compressed, a friction disk secured on said shaft and yieldingly engaging one side of said carrier to rotate the same, automatic means adapted to engage said carrier and arrest its motion as each compressing device reaches an operative position relative to said support, means controlled by the operator for releasing the compressing device at the support and in the same operation engaging a following compressing device to open the same and also effecting release of the arresting means from engagement with the carrier, and means on the carrier for actuating each released compressing device to cause it to grip a heel assembled on the support prior to the next movement of the carrier.

14. In a machine of the class described, in combination with a shaft, a carrier totatably mounted thereon, a series of heel compressing devices mounted on said carrier at equal intervals around its peri hery, means for rotating said carrier inclu ing a ratchet wheel rotatably mounted on the carrier, a detent on said carrier engaging the teeth of said ratchet wheel, a spring controlled treadle operatively connected to said ratchet wheel and adapted to be depressed to cause said ratchet wheel to ride over said detent and upon release to be raised by its spring to cause the ratchet wheel to engage said detent and exert a force tending to rotate said carrier, automatic means adapted to engage the carrier and arrest its movement as each compressing device is brought into operative position relative to said support, means operated in the depression of said treadle to release a compressingdevice at said support and in the same movement to engage a to lowing compressing device to open the same and to release the arresting means from engagement with the carrier, and automatic means operating to cause each released compressing device to grip a heel on the support prior to the next movement of the carrier efi'ected during the upward movement of the treadle.

15. In a machine of the class described, in combination with a shaft, a circular carrier loosely mounted thereon and having a series of compressing devices located at equal intervals around its periphery, each of said compressing devices having an operating member comprising a radial arm pivotally mounted on the side of said carrier, a support for the heels to be compressed, means for rotating said carrier including a ratchet wheel rotatably mounted on, and at the center of said carrier, and a detent on said carrier engaging the teeth of said ratchet wheel, a roller carried by said ratchet wheel and adapted to engage and press inward the inner ends of said radial arms, a spring controlled treadle operatively connected to said ratchet wheel and adapted, upon being depressed to cause said ratchet wheel to ride over said detent and to move said roller off of the inner end of a radial arm of a compression device said support and on to the inner end of the following radial arm, and upon release to have its spring exert a force tending to rotate the carrier by engagement of said detent w'th said ratchet wheel, automatic means for arresting the movement of the carrier with a compressing device positioned in operative relation to said support, automatic means operating upon the release of the radial arm of the compressing device positioned at said support to force the inner end thereof outward to cause the compressing device to grip a heel on the support prior to the next movement of the carrier, and means for effecting the release of said arresting means by the depression of said treadle.

16. In a machine of the class described, in combination with a shaft, a circular carrier loosely mounted thereon and comprising two circular members connected to rotate together, a series of stationary pressure plates mounted at intervals around the periphery of One of said circular members, a series of movable pressure plates mounted opposite said stationary pressure plates on the other circular member, a stationary support for the heels to be compressed positioned between said circular members, means for rotating said carrier in stages to bring the compressing devices in order to rest at said support, means controlled by the operator for causing each movable pressure plate at the support to grip a heel thereon between itself and a stationary pressure plate prior to the movement of the carrier, and means for adjusting one of said circular members toward and from the other to simultaneously vary the space between all of said stationary and movable pressure plates.

17. In a machine of the class described, in combination with a rotatable circular carrier, a series of heel compressing devices mounted thereon at regular intervals around its periphery, a support for the heels to be compressed, means for rotating said carrier, a series of studs, corresponding in number to said heel-compressing devices, arranged at intervals around said carrier, an arresting device comprising a spring-controlled arm having notch adapted to engage said stud, a spring-controlled treadle operating upon depression to lower said arm out of engagement with a stud on the carrier and upon release, to permit said arm to be moved by its spring to a position to have its notch engage the following stud on the carrier and arrest the movement of the same with a compressing device positioned in operative relation to said support, means controlled by the operator for causing each compressing device at the support to grip a heel thereon prior to the movement of the carrier, and means for moving said arm adjusted dispositioned at tances, in"onedirection or the other while its.

notch is in engagement with a stud, whereby tojcorrectly vposition the stopping point of the compressing devices ,relative to said support. J p 18. In a machine of theclass described, in combination with a rotatable carrier, a series of heelcompressingdevices mounted thereon at regular intervals around its periphery, a series of studs circumferentially arranged on said carrier, said studs being located respectively opposite said compressing devices, means for rotating said carrier, a support for the heels to be compressed, a spring controlled member having an arm provided with a recess normally engaging one of said studs, means including a depressible treadle and a pull-rod for causing each of said compressing devices to be actuated at said support to grip a heel mounted thereon and to open a followin compressing device, and means on said pull-rod for engaging said spring-controlled member in the depression of the treadle to lower said arm and release engagement of its recess with a stud on the carrier to be rotated, and operating on the release of said treadle to free said member and permit its arm to move said recess into engagement with a following stud, whereby to arrest the carrier with a compressing 7 device in operative position at said support. 19. In a machine of the class described, in combination with a rotatable carrier, a series of heel compressing devices mounted thereon, a support for the heels to be compressed, means for automatic means for arresting the movement of the carrier with a compressing device positioned in operative relation to said support in open position, a spring tending normally to close it, actuating means operating to hold the compressing device at the support open, a treadle operatively connected with said actuating means and adapted to move the same from engagement with the compressing device at the support and into engagement with following compressing device, and means actuated in the depression of said treadle after said actuating means has been moved from engagement with the y compressing device at said support to release said automatic arresting device and permit movement of the carrier through another stage.

20. In a machine of the class described, in

combination with a support for the heels to be compressed, a carrier rotatable in a vertical plane, a circular series of heel compressing devices mounted thereon each of which has a pair of clamping membersadapted to be positioned, respectively, on opposite sides of said support, means for rotating said carrier in stages to bring the compressing device in order to rest at said rotating said carrier,

tor for causing each compressing device to gipaheel heedanthesu port and while positipn ereon prior to t e movement the earner.

In testimony whereof, I have hereunto set my hand.

mnms PARKS.

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