US2274578A - Shoemaking apparatus - Google Patents

Description

Feb. 1942- F. ASHWCRTH ETAL SHOEMAKING APPARATUS Original Filed July 24, 1940 2 Sheets-Sheet 1 Feb. 24, 1942 F. ASHWORTH ETAL SHOEMAKING APPARATUS 2 Sheets-Sheet 2 Original Filed July 24, 1940 aw R QM Q Q Patented Feb. 24, 1942 SHOEMAKING APPARATUS Fred'Ashworth, Wenham, and Paul? W. Senfleben,

Malden, Mass, assignors to United Shoe'Ma-- chi'nery Corporation, Flemington, N. J., a corporation of: New Jersey Original application July 24, 1940, Serial No.

347,170. Divided and this application Februany 6, 1941, Serial'No. 877,702

20 Claims.

This invention relates to shoemakin'g apparatus and more particularly to apparatus used in the manufacture of moccasins. This isa division of an applicationfor United States Letters Patent, Serial No. 347,170, filed July .24, 1940, in-our names. I

The above-mentioned application relates to a method of making moccasins in which a forepart form is provided and is attached to successive heel part forms for the performance of a series of operations on the moccasin. The application relates to one of the operations in which the moccasin bottom is assembled on the forepart form in a predetermined position.

It is an object of thisinvention to provide for easy. quick, and accurate mounting of the moccasin bottom on its forepart shaping form. With this object in view, the invention contemplates a heel part form to which a complemental forepart shaping form may be attached to form a complete last, and a mounting for the heel. part form by which the latter is pivotally secured for movement to various positions which may be found convenient during the course of mounting the moccasin bottom on theform. Regarded in a slightly different aspect, this feature of the inventionmay be understood as a last comprising a heel part form, a forepart form, means for separably connecting these forms, and means for supporting the last for movement about heightwise and transverse axes.

As a further feature of the invention, the-forepart form is pivotally and separably connected to the heel part form, means being provided for extending and collapsing the assembled heel and forepart forms, and for holding the forepart-form and the heel part form in assembled relation when in extended position.

The invention will be. better understood. when considered with relation to the accompanying drawings, in which Fig. 1 is. a view in perspective, of a jack on which the forepart form may be mounted; and

Fig. 2 is aview in side elevation, partly in section, of the shaping form and the heel part form of the jack of Fig. 1. l

The earlier steps of our improved method above referred to are practised with the assistance of the jack illustrated herein. This jack comprises a heel part form. l which is hollow and is made in two 'parts which are secured together by screws l2 extending transversely of the heel part form. As has been indicated, this heel part form is arranged to receive a complemental forepart form l4. To this end a hinged member I6 is pivoted on a pin it extending transversely of the heel part. This hinged'member is providedwith a dovetail slot (Fig. 2) formed in its forward face and arranged to receive a corresponding tongue '22 on the rear end of the iorepart form. A pin 24 in theslot 20 limits the downwardmovement of the forepart form when it is inserted in the slot.

In order to move the last from extended to collapsed position, the hinged member is provided at its lower end with an ear 2 6 and to this ear is pivotally connected one link 28 of a toggle, the other link 30 ofthe toggle being pinned to anear 32 integral with the rear wall of the heel part. The toggle is normally held in its straightenedposition illustrated in Fig. 2 by a spring 34 connecting the knee 36 of the toggle and a lug 38 in the top wall of the heel part. Movement of the toggle out of its straight position to collapse the last is effected through a plunger 4i! connected to the knee 36 of the toggle and extending downwardly through a slot 42 in the bottom wall of the heel part. The plunger is provided with a head 44 which may be engaged by a projection 46 on a treadle rod mounted for sliding movement in brackets 50 carried by a base 52. Thus, depression of a spring-supported treadle (not shown) connected to the treadle rod 48 breaks the toggle and causes the member It to be swung rearwardly, thereby col lapsing the last and permitting the moccasin and forepart form Hi to be removed from it.

In order to prevent heightwise movement of the forep'artform relative to the heel part form when the last is in extended position, thelink 28 of the toggle is bored to receive a spring-pressed latch pin 54". The forward end of this latch pin is so positioned with relation to the pivotpoint of the link 28 that it extends through an aperture 55 in the member [6 and engages a notch 56 in the tongue 22 of the forepart form when the toggle isin straightenedposition, thus holding the forepart form securely locked to the heel part form. When the treadle is depressed to break the toggle, however, the latch 54 is swung rearwardly about the pivot point in the ear 26, moving it out of engagement with the notch 56 into a retracted position permitting the forepart form to be removed from the heel part form. There is thus provided what is essentially a twopart separable last in which the two parts may be easily and quickly assembled anddisassembled,

the heel part of the last being part of the assembly jack and forming the work support thereof.

Toassist in holding the moccasin bottom B on the assembled forepart and heel part forms, a spur 53 is provided. This spur is threaded into a split lug 69 integral with the link 39 of the toggle and is arranged to extend rearwardly through a slot 62 in the wall of the heel part form. A screw 64 is also threaded through the split lug 60 so that the spur may be clamped in adjusted position by tightening the screw. From the position of the spur 58 it will be noted that breaking of the toggle will cause the spur to move inwardly toward the interior of the heel part form and out of shoe retaining position. When the spring-supported treadle is released, however, and the toggle is straightened by the spring 34, the spur is moved rearwardly sufficiently far so that it extends out through the slot 62 to engage the moccasin bottom B to hold it in position on the heel part form.

be free to rotate upon its support. To this end a washer 66 and a ring 68 are secured to the under side of the heel part form by screws 19 which extend through the ring and the washer and into the Wall of the heel part form on each side of the slot 42. vide a passage through which the plunger 40 may extend and the ring 68 is provided about its periphery with a groove 14 into which the shank of a retaining bolt 59 extends, the bolt being threaded into a plate 18 in which the ring 68 is carried. Thus, the ring 68 is free to rotate in the plate 78, but the bolt 16 prevents it from moving heightwise of the heel part form. The plate 18 is pivoted at 89 in the base 52 so that it and the heel part form may be tipped rearwardly from work-receiving to working position. A shelf 82 integral with the-base is provided to support the plate when the heel part form is in the workreceiving position shown in Fig. 2. Stops 84 are also provided to limit the movement of the plate away from work-receiving'position and toward working position, these stops being engaged by arms 86 integral with the plate18. A catch 88 fastened to the treadle rod 48 by a set screw 99 is provided to hold the plate in operative position with the arms 86 against the stops 84, this catch being movable with the treadle rod so that depression of the latter will move the catch downwardly to enable the plate to return to workreceiving position.

The base member 52 is provided with two lateral extensions which form rests 92 on which the sides of a forepart form attached to the heel part form may be rested when the mounting operation is being performed. These extensions are pref-' erably provided with covers 94 of leather or some similar material secured to the base by screws 96 to prevent marring of the moccasin bottom when it is laid on the rest.

In operating the jack the heel part form is moved to the position shown in full lines in Fig. 1. The treadle is then depressed to move the hinged member I6 to collapsed position and the tongue of the forepart form is inserted in the dove-tail slot 29. Upon release of the treadle the spring 34 straightens the toggle and moves the assembled heel part form and. forepart form to extended position, thus locking them together by means of the latch pin 54 and moving the spur 58 outwardly through the slot 62. The heel part and forepart may then be swung rearwardly, pivoting the plate 18 about its pin in the boss 89 to move the form into working position. As the heel part approaches working position, the arms 86 strike the beveled upper surfaces 99 of the The ring and the washer pro- H latch member 88, forcing it downwardly a sumcient distance so the arms may pass by it and come to rest against the stops 84 with the latch member 98 holding them in this position. The forepart form may then be swung to either side and rested on one of the blocks 92.

With the assembled form in the position illustrated in Fig. 2, the moccasin bottom B is slipped over the form with its heel end tight against the heel part form [0, and with the back stay S of the moccasin bottom on the center line of the heel part. The spur 58 will retain the moccasin bottom in this position and prevent its slipping at the heel end. The form on its supporting plate 18 is then tipped rearwardly to the position indicated in broken lines in Fig. 1, and one side of the forepart form is laid on one of the rests 92.

The moccasin bottom is now ready to be positioned on the forepart form and temporarily secured thereto. The locating operation is preferably accomplished by bringing some predetermined point on the moccasin bottom into registration with a predetermined point on the forepart form. As illustrated in Fig. 2, these points may advantageously be an ear E made integral with a collar C on the moccasin bottom and a mark 98 on the side of the forepart form. When these points have been brought into proper registration, and this may involve some slight stretching of the moccasin bottom lengthwise in order not to disturb the relation of the back stay S to the center line of the heel part, a tack IE0 is driven through the collar G into a plug H12 in the side of the forepart form. The form is then swung about its pivot formed by the ring 68 so that the opposite side of the forepart form rests against the other side rest 92 carried by the base 52. It may be found desirable at this point to tension the moccasin bottom slightly laterally to remove any bad wrinkles and to bring it down close against the form along the shank. When this has been done the locating and tacking operation is repeated so that the moccasin bottom is now secured to the forepart form at both sides thereof. Here, also, it may be found necessary to stretch the moccasin collar slightly in order to bring the marks on the moccasin bottom and on the forepart form into proper registration.

After the tacking, the forepart form and the moccasin bottom are ready to be detached from the heel part form In which forms a part of the jack. This is accomplished by depressing the treadle rod 48 to move the latch member 88 downwardly thereby permitting the heel part form to be swung back to its initial position. Upon a second depression of the treadle, the last is collapsed, moving the shoe retaining spur out of engagement with the moccasin bottom, leaving the latter together with the forepart form free to be removed from the jack for the lasting operation.

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

1. Shoemaking apparatus comprising a heel part form, a mounting on which said heel part form is secured for pivotal movement, and means for detachably securing a co-mplemental forepart form to said heel part form.

2. Shoemaking apparatus comprising a supporting member, a heel part form constructed and arranged to receive a complemental forepart form, and means for mounting said heel 3. In a shoe machine, a work support comprising ashoe form having a heel part form and a separable forepart form constructed and arranged for interlocking engagement with the heel part form, and means for permanently securing said heel part form to the machine.

4. Shoemaking apparatus comprising a heel part form, a forepart form, means for pivotally and separably detachably connecting said forms, and. means for extending and collapsing the assembled heel and forep'art forms and for locking the forms in assembled relation only when in extended position.

' 5. Shoemaking apparatus comprising a heel part form, a forepart form, a hinge member pivotally connected to said heel part form, means for separably connecting said hinge member and said forepart form, vtogglemeans connected to said hinge member and constructed and arranged to extend and collapse said apparatus, and latching means controlled by said toggle for holding said forepart form and said heel part form in assembled relation when said toggle is in extended position.

6. Shoemaking apparatus comprising a heel part form, a forepart form, a hinge member pivotallly connected to said heel part form, said member having a slot therein, a tongue on said forepart form slidable into and out of said slot, toggle means connected to said hinge member and constructed and arranged toextend and collapse said apparatus, and latching means controlled by said toggle for holding said forepart form and said heel part form in assembled relation when said toggle is in extended position.

7. Shoemaking apparatus comprising a heel part form, a mounting on which said heel part form is secured for pivotal movement, means for detachably securing a forepart form to said heel part form, a spur carried by said heel part iform,

and means for moving said spur into and out of shoe retaining position.

8. Shoemaking apparatus comprising a heel part form, a forepart form, hinge means for separably connecting said heel part form and said forepart form, toggle means constructed and arranged to move the apparatus into extended position when straightened, and latch means operative upon straightening of said toggle means to hold said forepart form and said heel part form in assembled relation.

9. In a shoe machine, a collapsible last comprising a heel part form, a separable forepart form, a spur on said heel part form, means for securing said heel part form and said forepart form together, and means for extending and collapsing the last, said spur being connected to said last-named means for movement into and out of shoe-engaging position when the last is extended and collapsed.

10. In a shoe machine, a last comprising a heel part form, a forepart form, toggle means for moving said heel part form and said forepart form into and out of extended relation, and a spur carried by said toggle and constructed and arranged to be moved into shoe engaging position when said toggle is straightened. 1

11. Shoemaking apparatus comprising a heel part form constructed and arranged to receive a complemental forepart form, a mounting on which said heel part form is secured for pivotal movement, means for looking a forepart form in an assembled relation to said heel part form, and means for releasing said locking means.

12. Shoemaking apparatus comprising a heel part form, a mounting on which said heel part form is secured for pivotal movement, a spur carried bysald heel part form, means for lock ing a forepart form in assembled relation to the heel'part form, and means for simultaneously moving said locking means into and out of locking position and moving said" spur into and out of shoe retaining position.

13. Shoemaking apparatus comprising a heel part form constructed and arranged to receive a complemental forepart form, a base, a plate pivoted in said base about an axis transversely of said heel part form, said heel part form being secured on said plate for pivotal movement about an axis heightwise of itself, and a rest carried by said base and on which a side of a forepart form secured to the heel partform may be laid.

14. Shoemaking apparatus comprising a heel part form constructed and arranged to receive a complemental forepart form, a plate pivotally mounted for movement from work-receiving to working position, said heel part form being pivotally secured to said plate, means for latching said plate in Working position, and means for releasing said latching means.

. l5. Shoemaking apparatus comprising a heel part form constructed and arranged to receive a complemental forepart form, a base, means securing said heel part form to said base, said means enabling the heel part form to pivot about an axis heightwise of itself, means for securing a forepart form in assembled relation to the heel part form, and means for releasing said last-named securing means.

16. Shoemaking apparatus comprising a base, a plate pivoted on said base for movement from receiving to operating position, a heel part form pivoted to said plate and constructed and arranged to receive a complemental forepart form,

means for latching said plate in operating position, means for securing said forepart form in assembled relation to said heel part form, and means for releasing said latching means and said securing means.

17. Shoemaking apparatus comprising a heel part form, a mounting on which said heel part form is secured for pivotal movement about an axis heightwise of itself and about a transverse axis, hinge means carried by said heel part form and constructed and arranged separably to connect a forepart form to said heel part form, and toggle means for moving said hinge means into extended position relative to said heel part form.

18. Shoemaking apparatus comprising a heel part form, a mounting on which said heel part form is secured for pivotal movement about axes heightwise and transversely of itself, hinge means carried by said heel part form and constructed and arranged separably to connect a forepart form to said heel part form, toggle means for moving said hinge means into extended position relative to said heel part form, means for locking the forepart form in assembled relation to said heel part form, and means for simultaneously breaking said toggle and releasing said locking means.

' l9. Shoemaking apparatus comprising a heel part form, a mounting on which said heel part form is secured for pivotal movement about a transverse axis, means for detachably securing a forepart form to said heel part form, a spur carried by said heel part form, and means for moving said spur into and out of shoe retaining position,

20. Shoemaking apparatus comprising a heel part form, a mounting on which said heel part trolling said hinge means, and a shoe retaining spur controlled by said toggle and constructed and arranged to be moved into shoe retaining position when said toggle is straightened.

FRED ASHWORTH. PAUL W. SENFLEBEN.

CERTIFICATE OF CORRECTION.

Patent No. 2,27'L 7 February at, 19L 2.

FRED ASHWOR'IH, ET AL.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows Page 5, first column, line 9, claim L strike out "separably"; and that the 'said Lettera Patent should be read with this correction therein that the same inay conform to the record of the case in the Patent Office.

Signed and sealed this 5th day of May, A. D. 1912.

Henry Van ,Arsdale (Seal) Acting Commissioner of Patents

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