US1202220A - Shoe-support. - Google Patents

Description

1. H. POPE.

SHOE SUPPORT.

APPLICATION FILED FEB. 3. 1914.

2 SHEETS-SHEET 1.

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J. H. POPE.

SHOE SUPPORT.

APPLICATION F|LED FEB. a. 1914.

Patented Oct. 24, 1916.

2 SHEETSSHEET 2.

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JOSEPH I-I. POPE, 0F HAMILTON, MASSACHUSETTS, ASSIGNOB TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

SI-IOE-S UPPORT.

Application filed February 3, 1914. Serial N 0. 816,350.

To all whom it may concern Be it known that I, JosnrH H. Porn, a citizen of the United States, residing at Hamilton, in the county of Essexand State of Massachusetts, have invented certain Improvements in Shoe-Supports, of which thefollowing description, in connection with the accompanying drawings, is a specification, like reference characters'on the drawings indicating like parts in the several figures.

This invention relates to machines for operating upon shoes while on the wooden last.

In performing many operations it is desired to subject a shoe and inclosed last to considerable pressure as, for example, in a heel attaching machine where a heavy pressure is applied to the shoe and heel preliminarily to the operation of the awls' or drivers. In machines of this class there has heretofore been an objectionable amount of last breakage. his is on account of the fact that the entire pressure has been borne by the last cone which is of small cross-section.

An important object of the present invention is to provide means for suppcrtinga shoe on the last without pressure on the cone.

As herein shown this is effected by means arranged to engage the sloping sides of a shoe on the last ad acent to the counter.

The attempt has been made heretofore to support a shoe on the last by means which include side gripping members arranged to be actuated by vertical pressure transmitted through the small upper surface of the cone of the last. As distinguished from such construction the present invention contemplates,

as one cf its features, the provision of side gripping members arranged to be actuated in their gripping action by the vertical pressure transmitted through them to other parts of the machine. the upper surface of the cone of the last receiving no pressure and having no function in positioning the shoe. In the illustrated embodiment of the invention'this' is effected by forming the gripping members on a pair of levers arranged to extend at their upper ends upon opposite sides of-the shoe and having a spreading member located between their lower ends.

In o erating upon a-large number of shoes it'is important that the various elements of Specification of Letters Patent.

Patented oat. 24, 1916.

operative position in precisely the proper position regardless of variations in the size or shape of the last or shoe.

To this end the present invention contemplates the provision of the shoe gripping members arranged for bodily adjustment about an axis in the base of the jack.

Other features ofthe invention relate to improved shoe positioning gages and these, as herein shown, ccmprise oppositely arranged counter gages and a back gage, all three gages being mounted so as to yield vertically with the shoe when the latter is subjected to pressure. Thisprovision for yielding movement obviates the possibility of the gages defacing the upper and at the same time insures that the shoe shall not be displaced from the position desired.

, These and other features of the invention will be best understood and appreciated from the following description'of a preferred imbodiment thereof selected for purposes of illustration and shown in the accompanying drawings, in which, v

Figure '1 is a view in front elevation of a heel nailing machine in the construction of which my improvements have been embodied, parts being shown in section. and other parts broken away for clearness of illustration; 'Fig. 2 is a view in perspective of the jack, with the shoe in place, showing also parts of the machine frame. and Fi 3 isa view of the jack in longitudinal vertical section.

In the accompanying drawings the in ention is illustrated as embodied in a heel attaching machine of the tvpe illustrated in my prior Patent No. 446.885 granted February 24, 1891. although the present in ention is not limited in its application to that or any other particular typeof machine.

The frame 14 of the mach ne is provided with vertical journals in which IQCIDI'OCfltG.

the. supporting means should be adjustablegjjack carriage 12. The latter is provided tdwith horizontal wayslfor the-jack;

in order that the-shoe maybe presented in carries the shoe supporting devices which will presently be describedin detail.

The jack carriage 12 is elevated to measure thework preliminarily to the operation of the machine by a screw 13 which is rotated by a horizontally extending rack 11. The latter is actuated manually or by mechanical means before the machine is set in operation. After the measuring operation the jack carriage support 34 and the parts including the jack carried thereby are elevated by the oscillation of the cam 33. Thisisefiected by the power of the machine a and subjects the work to a heavy positive pressure. The cross-head 16 then descends and the attaching nails are driven through the heel blank 23 which isheld beneath the die plate 18 and through the outsole of the shoe which is being forced against the under sidev of the heel blank in the manner above outlined. i As above pointed out it has been the practice heretofore to support the shoeduring' these operations by resting the cone ofthe last upon asupporting member. In accordance with the illustrated embodiment of the present invention, however, the shoe is supported by a pair of oppositely arranged gripping members which comprise the plates 21 faced with pads 22. These plates are arranged to engage the sloping sides of the shoe on the last adjacent to the counter and as the last is somewhat wedgeshaped in cross-section and the plates are arranged in a correspondingly downwardly converging position it will be seen that vertical pressure applied to the shoe will be resisted by the gripping plates. So long as the latter are I prevented from separating the shoe will be held in position. a

One manner of supporting the gripping plates is shown herein and'consists in swiveling each plate upon the upper end of .a lever 20 journaled between its ends upon a 45 horizontal I pin 2 extending between the forked arms of a yoke 3. The yoke -3 is mounted for limited vertical movement upon the upper end of a spindle 4 and is prevented from turning by a key or screw 10 which enters a vertical key way in the spindle. The spindle is threaded adjacent to its lower end and provided with a largev conical nut 24 upon opposite sides of which-bear the lower ends'of the levers 20. The lower ends of the levers 20 areprovided with swivel blocks 30 mounted pivotally upon pins 32, and are connected by a spring 35 which serves to draw the lower ends of the levers I together and thus hold the bloc-ks 30 in contact with-the cone 24. An adjusting screw 36 and lock nut are provided by means of which the tension of the spring 35 may be. regulated. This is convenient in operating" ehpe v ying insi as large levers 20 must be permitted to approach each other, a condition which might require an increased tension in the spring 35.

'At its lower end the spindle 4 is pinned by across-pin 8 to .a yoke 5which is connected to a lug on the base of the jack by a pivot 6 extending from front to rear of the machine. This arrangement permits the spindle 4 and all of the parts carriedthereby to be rocked laterally in the machine so that the position ofthe shoe may be adjusted transversely with respect to the drivers. To limit the rocking movement of the spindle an adjustable stop 37 is provided on either side of the yoke 5 and this arrangement permits the parts above discussed to be rocked equal distances from a median position, an

adjustment which may be convenient for example in operating upon alternate right and left shoes.

,In the usual adjustments of the vparts above discussed the yoke 3 will be maintained near theupper limit of its movement by the engagement of the blocks 30 with the surface of the cone 24 on account of the tension of the spring 35. When vertical pressure is imparted to the yoke 3 and it is displaced downwardly the surface of the cone tends to separate the lower ends of the levers 20 and apply an'increased lateral pressure to the shoe being operated upon. The greater the vertical pressure applied to the shoe and consequently to the yoke 8, the greater lateral pressure will be applied to the sides of the shoe through the gripping plates so that the efiect of the increased vertical pressure tending to displace the shoe downwardly will be counteracted by the increased gripping action of the gripping plates.

At the forward end of the jack there is provided a toe post 40 pivotally mounted upon a pin 44 extending between the sides of the casing of the base of the jack. The toe post is bored longitudinally to receive a threaded shank 42 which carries the toe rest 41. A bearing nut 43 is threaded upon the shank 42 and by resting upon the upper end of the post 40 determines the ver-v locking pin 47 yieldingly mounted in the jack casing. The longitudinal position of the rest 41 is determined by swinging the post 42 forwardly or rearwardly, the latter being held in adjusted position by the locking pin 47 The rear end of the shoe is positioned properly with respect to the drivers by a pair of counter gages and a' back gage.

These gages are (mounted for a limited yield ing movement so that they will. accompany abs saw :in slight downward di p ce- ,ment when subjected to pressure.

counter gage 50 is formed on the upper end of a bell crank lever 45 and is shaped to enter the rand crease of the shoe held by the gripping plates. The levers elf) are each provided with an inwardly extending arm 60 and these arms are geared together so as to insure an equal and opposite movement of the gages. A spring 62 surrounding a rod 61 bears against the upper side of the arms 60 and by depressing the same tends to move the counter gages together.

The rod 61 projects downwardly from a bracket 63 in which is slidingly mounted the lower end of a rod 6t carrying the back gage 70'at its upper end. Near its upper end the rod 64 slides in an angle piece having a threaded shank 71 which extends through the forks of a bracket 72 on the machine frame. An adjusting nut 7 5 on the shank 71 serves to determine the adjustedposition of the back gage. The rod 64: and the back gage are maintained normally in an elevated position by a compression spring which encircles the lower end of the rod 64 as shown in Figs. 2 and 3. The lower end of the rod 64 fits loosely in the bracket 63 so that forward and rearward movement of the back gage does not cramp the rod 64 in its lower bearing.

One construction permitting vertical yielding movement of the counter clamps is shown in Fig. 2. The levers 45 are pivotally mounted upon the carriage 52 extending horizontally across the machine and having at either side a vertically disposed shank 53 which is received in a socket in a bracket 54 bolted to the jack carriage 12.

Each shank 53 is shouldered as shown in Fig. 2 and is supported by a spiral compres sion spring 55.

The construction of the work support will be apparent from the foregoing descriptibn and its operation when used in the illustrated heel attaching machine will now be briefly outlined. The jack 46 is pulled outwardly in the ways of the jack carriage and the shoe on a last is placed with its counter portion between the gripping plates 21 and its toe portion resting upon the toe rest 41. The position of the toe rest is then adjusted for height and for the length of the shoe in question. The conical nut 24 is turned to open and close the gripping plates to the proper extent for the shoe and thereupon the jack and shoe are pushed rearwardly into the machine, carrying the heel portion of the shoe between the counter gages 50 and into contact with the back gage 70. The counter gages act automatically to center the shoe regardless of its shape and to accommodate this operation the spindle 4 may be swung somewhat about the pivot 6. Previously the heel blank 23 has been presented beneath the die plate 1821s. shown in Fig. 1

Each I and in the measuring operation the jacked 6 shoe is raised into engagement with the heel blank. This operation settles the shoe firmly between the gripping plates 21, the latter automatically conforming to the shape of the last by reason of their swivel mounting. Thcreupon the machine is started and the jack is elevated by the action of the cam 33 subjecting the work to an increased and positive pressure. As previously explained, this increased vertical pressure results in an, increased lateral pressure by the gripping plates so that the shoe is held firmly in position without further displacement. In settling itself between the gripping plates the shoe carries with it the counter gages and the back gage which, as already explained, are permitted to yield downwardly with the shoe/ While the shoe. is

thus held under pressure the attaching nails are driven and the operation so completed. The jack is then lowered and with the removal of the vertical pressure on the shoe the lateral pressure of the gripping plates is simultaneously released so that the shoe may be removed.

Having illustrated and described my in vention, what I claim as new and desire to secure by Letters Patent of the United,

States is: a

1. A shoe support including opposed gripping members arranged to engage the slopmg sides of a shoe on a last and to transmit vertlcal pressure applled to a shoe, and means for causing vertlcal pressure so transmitted to effect a closing-1n movement of the gripping members. r

2. A shoe support including opposed gripping members arranged to converge downwardly for engaging the sloping sides of a shoe on a last, and means for closing in said members rendered effective by vertical pressure transmitted through the opposed grips ping members. 7 I

3. A shoe support including side gripping members arranged. to receivea' lateral and vertical pressure when the shoe is subjected to vertical pressure, levers carrying the gripping members. and-means acting on the opposite ends of the levers from the gripping members and responsiveto the vertical pressure on the gripping members for contracting said members. i

4:. A shoe support including a pair of levers pivotally mounted and extending at ping members carried'by said spindle for yieldingmovement with a shoe supported on the jack, and a gage carried by the gage rod. 6. A shoe support including a carrier and spreader arranged for limited relative movement in response to pressure applied to a shoe on the support, and oppositely disposed gripping members supported by the carrier.

7. A shoe supportincluding a carrier and spreader arranged for limited relative movement when the shoe is subjected tojvertical pressure, and side gripping members mount-v ed on the carrier and arranged to be forced by the action of the spreader into engagement with the sides of the shoe, said members also servingto support the carrier vertically.

' 8. A shoe support includinga jack having a spindle arranged to rock about a longitudinal axis at substantially right angles thereto, and relatively movable side gripholding a shoe in place against pressure at right angles to'its sole.

"95A shoe supporting jack' including a spindle pivotally mounted at its lower end for movement about an axis extending longitudinally of the'shoe, a conical expanding memberadjustably mounted on the spindle and arranged to spread thelower ends of the levers.

'11; A shoe support including a spindle, a carrier movably supported thereon and hav ing oppositely arranged pivoted levers, a swivel plate mounted on one end of each lever, a swivel block mounted on the opposite end of said levers, and an adjustable cone arranged to press on said swivel blocks.

Copies of this patent may be obtained for 12 A shoe support inc ludinga vertically movable head, pivoted arms thereon, a cone arranged to be engaged by the lower ends of the arms and to support the head through the arms, and a spring for drawing to gether the ends of the arms which engage the cone. I

13. A shoe support including a cone, and vertically movable shoe engaging members supported against vertical pressure by means engaging the sloping surface of the cone."

let. A shoe support including a cone, vertically movable shoe engaging members, means engaging thesloping surface of the cone for holding said members imposition vertically, and a spring for maintaining said means in engagement with the cone.

15. A shoe support including a jack carriage, a jack having shoe engaging members arranged for a slight downward displacement when the shoe is subjected to pressure, and shoegages yieldingly mounted in the jack carriage to permit a corresponding displacement.

16. A shoe support including a jack,

bracket adjacent to the jack, a guide men1- ber adjustable forwardly and rearwardly in the bracket, a gage rod associated with the bracket and arranged to yield vertically, and a back gage carriedby the rod.

17. A shoe support including a jack, a

carrier mounted for yielding vertical movement at the rear of the jack, a pair of levers pivotally mounted on the carrier for movement about axes extending longitudinally of a shoe on the jack and having counter gages thereon, and means for swinging the levers to bring the gages into engagement with the shoe.

In testimony whereof I have signed my name to this specification in the presence of twg subscribing witnesses.

JOSEPH H. POPE.

lVitnesses:

G. T. SMITH, (1A. SESSIONS.

five cents each, by addressing the Commissioner of Patenta Washington. 'D. C.

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