US1588703A

US1588703A - Mechanism for forming hinges of lasts for shoes

Info

Publication number: US1588703A
Application number: US643609A
Authority: US
Inventors: Clausing George
Original assignee: VULCAN LAST CO
Current assignee: VULCAN LAST CO
Priority date: 1923-06-06
Filing date: 1923-06-06
Publication date: 1926-06-15
Anticipated expiration: 1943-06-15

Description

June 15,1926. f 1,588,703

G. CLAUSING v MECHANISM FOR FORMING HINGES 0F LASTS FOR SHOES Filed June 1923 BSheets-Sheet 1 INVENTOR.

June 15 1926.

' G. CLAUSING MECHANISM FOR FORMING amass 0F LASTS FOR sgoas 5 Sheets-Sheet 2 Filed June 6, 1925 II I INVENTOR.

June 15 1926.

' G. CLAUSING MECHANISM FOR FORMING HINGES OF LASTS FOR SHOES- Filed June 6, 1925 5 Sheets-Sheet 4 1NV ENTOR. 3460 6 3%,

Fig, 9,

June 15 1926. I 1,588,703

G. CLAUSING MECHANISM FORMING HINGES 0F LASTS FOR SHOES Filed June 1923 5 Sheets-Sheet 5 E5 ES /X 8 82 I A l/l :5; gift: A y//////////////////////////////%/ IN VEN TOR.

Patented June 15 1926 UNITED STA TES PATENT OFFICE.

GEORGE oLA-UsI'NG, or PORTSMOUTH, OHIO, ASSIGNOR TO THE VULCAN LAST COM- PANY, 0F PORTSMOUTH, 0310,11 CORPORATIONOF OHIO.

MECHANISM FOR FORMING HINGES or nAsrs FOR SHOES.

.- Application filed June 6,

My invention relates t'oa mechanism for orming the hinges of lasts for shoes;

It is'theobjeot ofm'y invention to PIOVlClG a process and mechanism for forml'ng the hinge'portions of a ooden last, which lasts are used for the purpose of manufacturing shoes. t

It will be" understood that such hinges must be formed With great accuracy by severing the last body at predetermined angles and curves. It is also essent al that the severing of the last into 'tyvo'parts and the removal of the surplus material be accomplished Without injury to the last body.

It is a further object of my invention to provide a mechanism which Will accurately effect these severing operations of my process. 7

It is a further object toprovidesuch a mechanism Which will duplicate the same operations in the same Way repeatedly, so that there will be uniformity in the productresulting from the practicefof my process and the use of my mechanism,

Referring to the drawings:

Figure 1 is an elevation of a last before being Worked upon by my process and mechanism. H

Figure 2 is an elevation of the last after the first step in the process has been taken, and a V-shaped plug or section has been removed to permit of the last collapsing after the hinge has been formed. I

Figure 3is an elevation showing the second step of the process, i-n'whichthe semicircular hinge has been cut in the last.

Figure 4t is a side elevation of the last at the completion of the'process, after the bottom portion of the last hasbeen severed, thus forming the last in two separate parts.

Figure 5 is a plan view of the mechanism for removing the V-shaped plug or" section from the last. 7 v

Figure 6 is an elevation on the'side away from the Operator of the mechanism shown at Figure 5. V

Figure 7 isan enlarged" side elevation of" the last support.

1923. Serial No. 643,609.. V

Figure 8; is a plan View, ofthe mechanism mechanism in tWo positions,- atijthe start and at the end of the hinging operation,

Figure 11 is a section through the support or block upon which is'pivoted the carrier illustrated in the plan view in Figure 10.

Figure 12 is a} side elevation of Figure 8. In-my invention, the first stepfin the process is t'o s'ever the Vshapedsection from the upper portion of the last; the second step is thehing'ing operationto form the hinge betvveen thetwo sections of the last; and the last stepof the process is'the severing oper atio'n to sever two portionsof the last from one emother; I I i It Will be understood'that before the process has started upon the use it has received its preliminary shapeanjd' has liad drilled initgby any desiredmean's, tvvo holes" paral lel to one anotheigoiie hole being located in one half offlthe last, and the" other hole the other half. These holes a-i e fused for the positioning pins} to be hereinafter describedl With use general statement (if the,

process, the following is a detailed descrip tion oftlie drawings:

The last sho vn in Figure l consistsho fa toe portion and a. heel 1 portion respectively designated 1 and 2;

"Iii the toe, portion is the transverse hole 8, and in the heel portionuthe' transverse opening" 4, v Asiv ill be hereinafter describedQ-the saw makesa out along'thedinefi to formithe rearface off the toe port-join line 6 to torn the race The block there'betwe'n is thus removed. It usually leaves a ridge at the base of the V shaped cut as at 7; which is dressed away by the saw by a slight finishing operation;

The semi-circular" hingefis then formed on the: line? 8'', as Will" be hereinafter deand then 'along jthe of thejheer portion.

the

is the means for moving this carrier to and i 1 from the operator for effecting tne transverse out in the last body. The third feature of the machine is the lateral movement of the saw for the d fferent positioning of'the saw relative to the last body, atthe will of the operator. r r I It will be observed in this machine that it is unnecessary, unless desired, to demount the last body from its holder during the several cuts which are taken through the last body. It is also possible to adjust the last body upon its holder at a position away from the saw, thus lending a considerable factor of safety to the operation of the machine.

As to the details of the machine:

7 It ismounted upon standards 10. These standards carry a cross member or guide 11, upon which is mounted the saw carriage or support 12. This saw carriage slides laterally, due to the operation thereon of a shif ing lever 13, which is pivoted thereto at is.

This shifting lever is connected to a second lever 15, which projects adjacent to the operator, so that the' operators hand or knee may move this lever, and thus shift the saw laterally of the machine,

I I The saw 16 of circular type is mounted on a saw shaft 17 in thebearings18 and 19, which are carried on the top of the carriage 12. A pulley 20 is mounted on this shaft 17,

and a belt 21 is in turn mounted upon the pulle This belt is driven from any suitable source of power, such as from the pulley 22, which is mounted on a conventional shaft, which in turn carries the pulley 23 fixed thereon, and a loose pulley 24, which alternately engage with the main driving belt 25. These details are not of the essence of this invention in any way. 1

The movement of the carriage and the saw to the left hand is resisted by the helical spring 26, which is seated at 27 in the side of the carriage 12 at one end, and at its other end is seated in the standard 10 in a pocket 28. The position of this spring in the pocket is determined by the set-screw 29 and the lock-nut 30.

The limits of movement of the saw in either direction are fixed by the set-screws 31' and 32 carried by the standards on eitherv side of the carriage. Mounted on these vertically standards, or upon a portion of them, is a moving support moving in a guide way. The vertical member of this supportis designated 33, and has a dovetailed por tion 34 sliding in a dovetailed groove in one of the standards, on the exterior thereof, as at A threadedeye 36 carried by the vertical member 33 engages with a worm 3'7,

which is actuated by a hand wheel 38, so i that the elevation of this portion of the mechanism may be adjusted.

hfounted upon this vertical member-33 is a plate 89, retained thereon by a bolt 410. This plate, which runs transversely of the machine from a'point adjacent the saw to a point adjacent the operator, is provided with a dovetailed groove l1, in which a dovetailed member 1 2 travels. The dovetailed.member 42 forms the base or carrier for the lastholder'. This carrier is designated 43, and projects upwardly. and laterally from the saw in an, arch-shaped neck 44:, uponwhich is mounted pivotally the lioldingplate 45. It is upon this holding plate that are located the two retaining

pins

46 and 47 upon which the last is mounted. These pins project-into the holes t and 3 in the last.v The plate itself is mounted upon the shaft 48, which rotates in the collar 49 of the bracket l4 It will be noted that this supportingplate as has a cut-away portion partially ircular, as at 50, for accommodating the saw. as it enters the last. 7

moved about its pivot by the arm or lever 51, which is held byv the hand ofthe oper-- The block itself is ator. It may be rested against the pin 52 oragainst the pin 53, depending uponthe position ofthe last. V l i The last ismounted upon these pins up side down, so that in the position shown in Figure 6 the saw is in'position forformingr the forward or toe face 5 of the out which removes the V-shaped segment or section from the last. The movement upwardly of the handle 51 would position; the last for taking the cut from the heel portion.

These

pins

52, and 52 are mounted on baclrplate 5e, and are adjustable lay -wingnuts in a groove 56 on that plate. They also projectthroughagroove 57 in a forward plate The lock-nut and bolt serve to hold the two plates together. i The plate 5% is mounted at 60 upon the bracket 43 of the carriage. This permits an adjustment of the position of these pins or stops and 53, which determine the position of the holding plate.

A further adjustment of the last-supporting pin 4-7 is effected by a loch-nut 61, which holds the pin in any desired position in the .slot G2 in the holding plate 1-5.

The carrier 43 may be moved to or from the operator, as will be seen in FlgUIGB; by.

pivot 7 4.

carrier block by loosening the nut 64 on the ing plate is rotated for effecting the cut by,

bolt 65, which is carried by the carrier block A slot 66 in the bracket 44 accommodates this adjustment.

lit is therefore possible to move the last to and from the o1 era-tor or laterally of the operator. it is possible to adjust the extent of the rotation of the last on the holding plate, and it is also possible to adjust the position of one pin on the holding plate to the other. It is possible to vary the position of the saw laterally.

With these several adjustments all within the ready reach of the operator, T have provided a machine for this step ofcthe process which is readily adjustable to varying conditions, sizes, and dimensions. It is also possible to vary the entire elevation of the last-- supportingstructure by the worm. 37 and the hand wheel r The mechanism to effect the second step f the process, namely, the hinge-forming step, is as follows: I

I provide a table 67, upon which there is mounted a plate 68. This plate carries an adjustable stop 69. The stop has a slot "70 for the reception of the adjusting bolt 71 carried by the plate 68. A nut 72 fixes the stop 69 in any predetermined position. This stop is used for limiting the movement of the carrying plate 73, as will be further described hereinafter. This carrying plate 73 I is pivoted upon the supporting plate by a 7st is adjacent to and connected with a projecting finger 75. A semi-circular cut-away portion or recess, known as a sawslot, is formed in the plate 73 as at 76, ad

jacent to the finger 75. One part of this plate carries the pin 77, and the other part of the plate carries thepin 78, which is adjustable in the carrying plate 73 in the slot 79. Located adjacent to this saw-slot in this carrying plate is a vertically moving bandsaw 80. The last is mounted upon the pins with the saw substantially parallel to and closely adjacent to the base 7 of the cut-away portion in the top of the last which resulted from the previous step in the process. The lastand holding plate 7 3' can then be moved about the pivot, thus forming the semi-circula-r hinge, by the saw cutting away the wood along the hinge line as at 8 in Figure A supplementary positioning arrangement is provided in having the plate 68, which is a relatively heavy plate, pivotally mounted upon the table 67 by means of the link 81, which is pivoted at 82 to the table 67, and connected at 88 to the plate 68. It is positioned by the stop 8%.

By this arrangement, it is possible to mount the last on the carrying block with the plate 68 away from the saw, and then to bring the entire mechanism bodily adjacent to the saw, after which time the carrythe saw. This enables the operator tomount the last and adjust it, with respect to the carrying plate 73 and the plateGS, without being in proximity to the saw.

It will also be observed that the table 67 is provided with a saw-slot 86.

Tlurning to the mechanism for effecting the last step, in the process of'severing the observed that a v halves in the last, it will be table 67 isprovided, having a saw-slot 86 in wl fch is located a saw 80. A'block is pivotally mounted on the table 67 by a link 89, which is connected to the table at 90, and to'the block at .91,

This block 88 has at its outer end'a cutaway portion substantially V-shaped as at 92 to accommodatethe saw. Mountedupon the block adjacent to this cut-away portion, is a carrying plate 98, having the pin 94;, which projects into a hole in one half of the last, the hole of the other half of the last adapted to receive a pin 94 mounted on the block This plate 93 is adjustable on the block 88 through .a bolt 95 carried by the block which works in a, slot 96 in the plate A nut 97 serves to locate the plate v93 on the block 88 at predetermined positions. The block itself is limited-in its position on the table 67 by the stop 98. By moving the block and the last mounted thereon against the saw 80, the slightly circular cut 9 is taken, to sever the two halves of the lastfrom one another.-

Thus I am enabled to form from a single block by my process and mechanism, a hinged last.

It will be understood-that I desire to for moving said carrier to and from said i saw, a holding plate pivotally mounted on said carrier adjacent said saw, said plate having a cut-away portion for the reception of the saw as the plate is moved with the last thereon, means on the holding plate for supporting said last on either side of the portion being cut. 7

2. In a last-hinging machine, a frame, a

transversely moving saw support mounted on said frame, means for moving said support on said frame having its actuating end twin.

adjacent an operator, a last carrier, a supporttherefor mounted on said frame, means for moving said carrier to and from said saw, a holding plate pivotally mounted on said carrier adjaeent said saw, said plate having a cut-away portion for-the reception offthe saw as the plate is moved with the last'thereon, means on the holding plate for supporting said last on either side of the portion being out, and means for moving the holding plate to regulate the out in the last.

3. In a lastliinging machine, a frame, a transversely moving saw support mounted on said frame, means for moving said support on said frame having its actuating end adjacent an operator, a last carrier, a support therefor mounted on said frame, means for moving said carrier to and from said saw, a holding plate pivotallv mounted on said carrier adjacent saidsaw, said plate having a cut-away portion for the reception of the saw as the plate is moved With the last thereon, means on the holding plate for supporting said last on either side of the portion being out, means for moving the I holding plate to regulate the cut in the last,

and means for limiting the movement of said regulating means. I

4. In a last-hinging machine, a frame, a transversely moving saw support mounted on said frame, means for moving said support on said frame havingit-s actuating end.

adjacent an operator, a last carrier, a support therefor mounted on said frame, means for moving said carrier to and from said saw, a holding plate pivotally mountedon said carrier adjacent said saw, said plate having a out-away portion for the reception lure.

GEORGE OLAUSING.