US872525A - Last. - Google Patents

Description

Hm. LOEWERL PATENTED DEC. 3, 1907.

LAST.

FIGA'.

. new anduseful Improvements in Lasts, of

unrrnn STATES PATENT orrron.

HENRY r. LOEWER, or ROCHESTER, EwYoRK.

' LAST.

Specification of Letters Patent.

PatentedDee. s, 1907.

Application filed February 27. 1905 Serial 110.247.455-

Teal-Z whom it concern:

Beit known that I, HENRY F. LOEWER, a citizen of the United States, and resident of Rochester, in the county of Monroe and State ,of New York, have invented certain which thefollowing is a specification.

This invention relates to lasts capable of 'being'so reduced in certain of their dimensions as to be capable ofjeasy'withdrawal from a shoe which has been fastened tightly- .upon the'la st.

In he drawing :Figure 1- is a longitudinal .view of a last embodyin this invention with all the parts in place for asting or finishing a :shoethereon; .Fig.- 2'is a longitudinal section of the same last showing the parts moved into '-pos'ition s for easy. removal'of a shoe therefrom;-"Fig; 3 is'a top view of a portion of the instep and toe part of the last;- and Fig. 4 is a cross-section on the line 4 4 of Fig. 1.

' This last consists of three parts; the toe lblockil the instep block 2, and the heel blo'ck 3-.1 Inthe heel block .is fastened, so 'a'sto be rotatable therein, a'sleeve or thimble 4:. The

interior of the thimble is of irregular form to fit an irregular shaped key or jack-post 5, so

that when the key-or jack post 5. turns with reference tothe last, or vice versa, the parts of 'thelast .move automatically, as shown below. LUpon the thimble or sleeve 4 is the wormfi, which may be of larger dimensions than the thimble or sleeve so as to rest and be retained in I a cavity 7 in the'heel 'block. The worm and thimble maybe held 'in place by a'transverse pin 8 upon which the bottom of the worm and thimble rest. A

I central vertical slot 9 in the heel block holds one end of a lever 10 which is pivoted in the heel block by the pin 11', and has teeth 12 en-- gaging the thread of the worm .6. The lever 10 has a short'longitudinal slot 13 nearthe vex toward the pinll.

end opposite to the end having the teeth 12, and between'said slot and the pin 11 is a curved slot 14 set transversely to the line. connecting the slot 13 andthe pinll and con- In the toe block l'is' a slot 15"to take the lever 10, and a cross pin 16 in the toe block passes through the slot 14, and another cross pin 17 in said. toe block. passes through the slot 13. The toe block 1 and heel block 3 slide from each other on sur- 2 .faces 18 diagonal. to the bottom of the last and inclining forward from said bottom, so .that when the heel block is moved into the position shown in Fig.2, the last is shortened to release the shoe, the last is lengthened 'to fit the shoe tightly when'movedinto the position. shown in Fig. 1. just described of the toe. part with reference The movement to the heel block is produced by turning. the

last-while the .jackpin 5 remains stationary, thus rotating the worm 6 by the engagement of-thelatter with the teeth 12 of the lever 10,

tilting the'lever upon the pin 11', and moving the toe block 1 forward from the position shownin Fig. 1 to that shown in Fig. 2.

In order to release a shoe from the last 1 with ease and speed it is necessary to reduce the size of the last at the lower part of the in step portion thereof, and for this purpose the present invention embodies an automatically movable instep block 2 which is held to the toe block and is guided so as to move in a proper. path to expand the last in one position and to reduce it in another. To the toe block,.or to the instep block, is fastened one of the gu ding and retaining members, such as the strip or rod 19.

direction of itslength from the position shown in 1 to that shown in Fig. 2, and vice versa.

Near. the slot 13 in the lever 10 are cut ftoothed members 23 which'engage with cor responding toothed members 24 in a lever 25 pivoted by a'pin 26 in the slot 15 and to the toe block 1, so that as the lever 10 oscillates 'from the position shown in. 1' to that shown in Fig. 2, or vice versa, the lever 25 will be oscillated upon the pin 26. The lever 25 has a'slot 27 in the end thereof which rests in a slot 28 in the toe block'2. .27 is radial, or substantially radial, with reference to the pin 26 'as a center, and a pin 29 passes throug 1 the slot 27in the lever 25 and into the toe block; V

It will.n0w be seen that upon turning the last upon the jack pin 5, the lever 10 will be rocked from the positionshown'inFig; 1 to In the present em- The slot 7 that-shown in-Fi 2, and thereby the lever 25will be rocked hem said position shown in Fig; 1 to that shoWn-in Fi 2, whereby the instep block Z'will' be pulled from the position inwhich it fills the shoe to a position in which it releases the shoe from internal pres- 5 sure,-and atthe same time, as before stated,

the toe block 1 is lifted. and the length of the last is decreased because the heel block and toe part slide upon the diagonal plane sur faces 18,

a'ineeting portion therefor on the toe block 1- are formed in corresponding angular surfaces 22, Fig 3, whereby the instep block is guided in accuratep'osition on the toeiblock.

What I claim is':; 1Q In a-last, a. heel block, a-toe block, a

connection for connecting the two parts to 2'. In a last, a heel bloclga toe block, aconnection for connecting the two'parts slid- 25. ably together, an instep block sliding upon said toe block, and means for sliding'said in' step block by said connection.

In a last,- a heel-block, a toe block, a

connection for connecting the two parts to- 3O gether', an instep block sliding upon said'toe block, meansfor sliding said instep block by said connection, and a rotary thiinble in said heel-block for actuating said connection.

gether, a rotary worm Ithimble in said heel block engaging said connection for actuating the latter, an instep. block sliding upon said toe block, and means for sliding said'instep 40 block by said connection.

' 5. In a last, a heel block, a toe block, a le-' ver pivoted to the heel block and'extending into and attached to the toe block, a rotary thimble in said heel block engaging said lever 5 for actuating the same, an instep block slid ing upon the said toeblock, and means for sliding said instep lock by movement of said lever. I

6. In a last,- a heel block, a toe block, a connection for connecting the two parts together, an' instep block sliding upon said toe block,- and'a part geared-to said connection and connected to said-instep block for sliding, the la er by movement of said connection. "T. in a last,a heel block, a toe block, a

connection or'connecting the two parts slidably together, an instep block sliding upon said toefblock, and a part geared to said connection aid connected to-said instep block for sliding the'lattcrby movement of said connection.

8. In a last, a heel block, a 'toe block, a connection for connecting the two parts-to-- get-her, an instep block sliding upon said toe block, a part-geared to said connection and,

The-forward end of'theinstep blo ck 2 and states ,I

5 connected to said instep 'block for sliding the latter by: movement of said connection, and a rotary thnnble in said heel block foi actu-- atlng sald connection.

9.. In a last, a heel block, a toe block,

connection; for connecting the v 'two parts to-.

gether, an instep block sliding-upon sai'd toe blo'ck,.a part geared to said connection and connected to said instep block for sliding the latter by movement of said connection, and a rotary worm thimble in said heel block engaging. 'said connection tor actuating the latter..' I

- 10. In a last, a heel block,- a toeblock, a lever pivoted tothe heel block and extending into'and attached to the toe block, a rotary thimble in said heel block engaging said lever for actuating the same, an'instep block sliding. upon the said toe block, and apart gearedto said connection and connected to said instep block tor sliding said instep block by lnov'em'ent'o'f said connection.

11. In a last,- a-heelblock, a toe block, a

' connectionfor connecting the two parts together, an instep block sliding upon said toe block, and a lever pivoted to said toe blo'clr' and engaging said instep block and said con.-

nection and actuated by the connection for sliding said instep block baclcand forth.

' 12. Inala'st, a heel block, a toe block, a

connection for connecting the two parts 10-.

gether, an" instep block sliding upon said toe block', a part geared. to said connection and Line last, a heel block, a toe block, a. 35 connection for'connecting the two parts to ably together, a'n'instep block sliding upon said toe block, part geared to said connection and connected to said instep block forsliding the latter-by movement for said connection, and a lever pivoted to said toe.

block-and engagingsaid instep-block and said connection and actuated by' the connection for sliding said instep block back and forth. 7

- 1 4. Ina last, a heel block, a toe block,- a

connection for connecting'tie two parts together, an instep. block sliding upon said toe block, a rotarythimbie in said instep block for. actuating said, connection, and a lever pivoted to said toe block'and engaging said inste'p block and said conne ,tion and actuated by the connection for sliding said instep block back and forth.

1 5. In a last, a heel'block, a toe block, a connection for connecting the two parts-together, an instep block sliding upon said toe block, a"rotaryworm thimble in said heel block engagingsaid connection for actuating the latter.' and a lever pivoted to said toe block and engagingsui l inste block and. sliding upon the said tee block, encle lever 10 saul connection and actuated by the cOnpivoted to snul 100 block and engaging sald motion for sllding Saul mstep block back and instep bleak and ,;-';1 1 l. hrst-mentlened lever forth. and actuated by the first-mentioned lever I 16. In a last, a heel block, a toe block, a i for sliding said instep block back and forth: lever pivoted to the heel block and extend- HENRY F. LOEWER. ing into and attached to the'toe block, a 1'0- Witnesses: tary thimble in said heel block engaging said D. GURNEE lever for actuating the same, an instep block L.'.THON

Images