US1513635A - Last - Google Patents

Description

C. SCHEVITZ LAST Filed Dec. 5 1923 2 Sheets-Sheet l WAI ATTORNEY WTNESSE Oct. 28 1924.

C. SCHEVITZ LAST Filed Dec. 3. 1923 2 Sheets-Sheet 2 INVENTOR ATTORNEY WITNESSE$ Fatented @et 28, i924.

CARL

Application filed December To @ZZ @17mmz'z may concern.'

Be it `known that I, CARL SCHnvrrz, a citizen of the United States, residing at Jacksonville, in the county of Duval and State of Florida, have invented new and useful Improvements in Lasts, of which the following is a specilication.

This invention relates to shoe stretching means, the present invention being an improvement over that forming the subject matter of an application tiled by me on Feb. 21, 1921, Serial No. 446,554, issued Feb. 5, 1924, as Patent No. 1,482,584. The principal object of this invention is to provide means for operating the members for acuatingthe side stretching member simultaneously which includes a hollow screw shaft which is placed over the shaft for operating the instep stretchingv member.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts. to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claims.

Tn describing my invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which Figure '1 is a side view of the device with the cover in section.

Figure 2 is a plan View with parts in section.

Figure 3 is a section on line 3 3 of ure 1. f

Figure 4 is a section on line 4-4 of Figure 2.

The remaining Figures 5 to 10, inclusive, are detail views of the various parts of the improved device.

In these views, 1 indicates the main frame, the side bars of which are provided with the slots 2 and 8 indicates the upright frame which is of channel-shape in cross section and to which the curved side pieces 4 of the main frame are connected. These side pieces are provided with curved slots 5 for receiving the pins 6 of the rocking arms 7 which have their lower ends pivotallv connected with the outer members 8 which cooperate Figwith the inner members 9 for moving the side stretching piece 10. which has its shank eX- tending through one of the slots 2. The upper ends of the arms 7 are pivoted to a block ll which is slidably arranged on the chan- The heel member 35 has its Serial No. 578,299.

nel-shaped upright and which has a screw threaded hole 12 'for receiving a tubular screw shaft 13 which passes through the top of the upright frame and has its lower end held in a bearing piece 14 which projects from the upright frame. Thus when the tubular shaft is rotated the block will be moved vertically on the upright frame and thus cause the arms 7 to move the outer members 8 for 'adjust-ing the said members and the members 9 longitudinally, as described in the before mentioned application. The front ends of the members 8 and 9 are bent at right angles and each member 9 is provided with a. projection 9 the member 8 wardlv for a certain distance so that when this occurs the movement of the member 8 will be communicated to the member 9 and thus both members will be moved rearwardly. The rear ends ofthe members 9 are connected together by the U-shaped piece 15 and the racks 16 on these members 9 are engaged by the locking plate 17 for bers 9 in adjusted position. This locking plate is slidably mounted on the rear of the upright frame and is normally held in lowered position by the spring 18 and is `held in raised position by the notched part 19 thereof engaging the small rear part of a. slot 20 in the upright frame. The shaft 21 for rockwhich is engaged by a part on y when the same is moved rear# holding these mem-v ing the bar 22 passes through the tubular rear of the upright frame. 'This shaft and the shaft 21 have square ends which are engaged by the socket in the member 80 of the handle 31 while the tubular shaft has notches I 32 in its u Der end which are enoaved b the proiections 33 on the part 34 of the handle. lower end curved inwardly, as at 36, so as to facilitate the entrance of the device in a shoe. This member is operated in the same manner as described in the before mentioned application though the handle 37 for operating the actuating parts thereof is made round as shown.

rThe rack lars on the heel member are engaged by the teeth carried by the spring pressed member l1 on the shaft 28 and which is raised out of engagement with the teeth ofthe rack bars by the mea-ns just mentioned.

From the foregoing it will be seen that when the tubular shaft is operated to lower the block the members 8 and 9 at each side of the main frame will be moved forwardly, the movement of the outer member being communicated to the inner members by the shank of the side stretching piece 10 or if this piece is not in position by the bent end of the outer member coming in contact with the bent end of the inner member. vWhen the parts have been adiusted to the proper position the locking plate is moved out of the small part of the notch so that the spring will force it into engagement with the racks on the inner members so as to hold said inner members against movement. Then upon further movement of the block the outer members engaging the beveled ends of the shanls of the side stretching pieces will force said pieces outwardly to stretch the sides of the shoe adjacent the toe. lt will of course be understood that either one or two of these side stretching pieces can be used. rllhe drawing only shows one. rl.`he instep member is raised into stretching position by rotating shaft 9.1 and the toe stretching member is moved 'by rotating the shaft 28.

ylhe parts not referred to in this application are the same as described and illustrated in the before mentioned patent and it is not thought necessary7 to describe them in detail in this application.` A shield S9 is placed on the top of the upright frame and held in lace by a nut l0 which engages the upper end of the tubular screw shaft. This shield is also provided with perforated arms which are screwed to the top of the upright frame.

lt will be seen that l have simplified the construction of my device so that it can be manufactured to sell. at low cost and the present device is more simple of operation than the former device.

It is thought from the foregoing` description that the advantages and novel features of my invention will be readily apparent.

l desire it to be understood that l may malte changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claims.

Vihat l claim is:

l. A shoe last of the class described comprising a main frame, a side stretching member adapted to be placed at either sidi thereof, a pair of-longitudinally movable members at each side of the main frame, for actuating the side stretching member, an arm connected with a member of each pair, a block to which the arms are pivoted, a support in which the block is vertically movable, a tubular screw shaft pasing through a threaded hole in the block and rotatably mounted in the support, a shaft passing through the screw shaft and having a threaded part engaging a threaded hole in a stationary part of the support, a rocking bar having its rear end engaged by the longitudinally movable sha-ft, and an instep stretching member carried by the outer end of said rocking bar.

v2. A shoe last of the class described comprising a main frame, a side stretching member adapted to be placed at either side thereof, a pair of longitudinally movable niembers at each side of the main frame for actuating the side stretching member, an arm connected with a member of each pair, a block to which the arms are pivoted, a support in which the block is vertically movable, a tubular screw shaft passing through a threaded hole in the block and rotatably mounted in the support, a shaft passing through the screw shaft and having a threaded part engaging a threaded hole in a stationary part of the support, a rocking bar having its rear end engaged by the longitudinally movable shaft, an instep stretching member carried by the outer end of said rocking bar, a toe stretching member, a longitudinally movable bar carrying the same, a vertically arranged shaft and means actuated thereby for moving the said bar longitudinally.

3. A shoe last of the class described com` prising a main frame, a side stretching member adapted to be placed at either side thereof, a pair of longitudinally movable members at each side of the main frame for actuating the side stretching member, an arm. connected with a member of each pair, a block to which the arms are pivoted, a support in which the block is vertically movable, a tubular screw shaft passing through a threaded hole in the block and rotatably mounted in the support, a shaft passing through the screw shaft and having a threaded part engaging a threaded hole in a stationary part of the support, a rocking bar having its rear end engaged by the longitudinally movable shaft, an instep stretching member carried by the outer end of said rocking bar, a toe stretching member, a longitudinally movable bar carrying the same,

a vertically arranged shaft, means actuated thereby for moving the said bar longitudinally and a crank handle having parts engaging the two vertically arranged shafts and the tubular shaft for rotating the shafts.

ln testimony whereof l aflix my signature.

CARL SCHEVTZ.

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