US1219684A - Machine for sewing leather articles. - Google Patents

Description

P. WAJDIC.

MACHINE FOR SEWING LEATHER ARTICLES.

APPLICATION HLED JULY 31. I914.

Patented Mar. 20, 1917.

PETAB AJDI, or s'rnnn'ron, PENNSYLVANIA.

MJACHINE FOE SEWING LEATHER ARTICLES.

. To all whom it may concern:

lie it known that l. Pn'ma VAJDIC,

" a subjectot' the King; of Hungary, residing .at h'teelton, in the county of Dauphin and provide jis simple hereinafter set forth,

State of Pennsylvania. have invented certain new and useful Improvements in Machines for Sewing Leather Articles, of which the following is a specification, refer- ..ence being bad therein to the accompanying drawing.

This invention relates to a machine tor sewing leather articles and has for its object. to provide a machine having a needle operating and work feeding mechanism as capable of being opicratcd manually for sewing together a plu- 'ality of plies of leather.

Further objects of the inventionare to a mechanism. of such class which in its construction and arrange- .Iment. strong. durable, ellicient' and conven- .ient in its use, readily set up and comparatively inexpensive t omanufacture,

With the. foregoing and other ObJGCtS in view theinvention consists of a novel construction, combination and arrangement o parts as hcrematter more specifically described and illustrated in the accompanying drawings, wherein is shown an embodiment of the invention. but it is to be understood that changes, variations and modifications can be resorted to which come within the scopeot the claims hereunt appended.

r\lthougli the machine is designed primarily for the sewing or stitching together of a plurality of plies of leather, yet it is to be understood that it can be employed for stitching or sewing togethe a plurality of plies of any flexible material.

Figure 1 shows a side elevation of the machine ha ring a portion thereof broken away as indicated in Fi 2 by lines (t o.

Fig. 2 is a top plan view of the machine, and Fig. 3 is a detail perspective view of the pivotal joint employed in the device.

Referring to the drawing in detail, 1 denotes the inner side of a bottom member. A similar member lies parallel with the member 1 and the members terminate in an integral handle. 8. Near the front and rear oi members l and 40 are braces 2 and 3 con net-ting them and formed integral with them. Between the handle i and brace 2.

isa housing having side} walls Pl connecting the members 1 and -L0 and a top 0 Specification of Letters Patent.

Patented Mar. 20, 1917.

Application filed July 31, 1914. Serial No. 854.421.

made integral with the walls 4rl and members 1 and 32. The top 5 has a hole centrally located therein. The forward ends of members 1 and 40 are connected by a. plate 7, being perforated to allow the needle to coiiperatc with the usual stitch forming mechanism 42.

The arms 2 and 3 and one side of the member 4 provide'bearings for the longitudinally extending shaft 8 thelatter having attached to its forward end a toothed wheel 9 which projects above the plate 7 and constitutes means for shifting material while being stitched. the teeth of said wheel engaging beneath the goods to be operated upon whereby the goods may be fed forwardly when released by the sewing needle and held against the teeth by the operator but ratcheting: thereover during the return movement; of the wheel 5) when relea ed by the operator and unattecting the goods. The rear end of the shaft. 8 is provided with a beveled gear 10.

Secured to the top edge of the member 1, are a pair of uprights l0 and 11, and pivotally connected to the upright 11, as at 12, is a longitudinally extending shank 13, of a verti ally disposed needle holder 1d, the latter having a needle attached thereto and further provided with a thr ad guide 16, through which travels the thread 17, as it is unwound from the spool 18.

The shank 13 carries a post 19 for the spool 18 and the latter is maintained upon the post 19, by a shit'tablc retaining arm 20, carried by a post 21 secured to the shank l3, rearwardly with respect to the post 19.

Pivotally connected to the top of the upright l0 as at is an operatii'ig lever 22, the latter having its forward end reduced and received between the sides of the forked rear end of the shank l3. thc'said sides being slotted as at 4 5 and the said lever 22 and shank 1;, being pivotally connected as at .23, to the rear end of the shank, and its rearward end formed with a handle 24. The lever 22 has a. lateral extension 25. formed with an opening 26. having the wall thereof provided with projections 27 and '28, which extend into a spiral groove formed in a vertically disposed shaft 30. The shaft 30 extends up through the. openings 5 and 26 and has its lower end provided with a beveled pinion 31 which meshes with the pinion 10.

Interposed between the lever 22 and member 1 is a spring 32 normally maintaining the lever and member 1 in spaced relation and adapted to return the lever 22 and shank 13 to their normal positions in sub stantial alinement with each other after each actuation of the device.

The lever 22 is capable of being shifted upon its pivot 21, to cause the rotation of the shaft 30, such action will operate the shaft 8 by means of the shafts 30 and the gears 31 and' 10. When the lower end of thelever 22 moves downward the rear end of the shank 13 will be carried upward, causing the lowering of the needle holders, the stitching of the material, and the feeding of the thread. i

The spring 3:! -vill not only actuate the lever 22 to starting position but will also restore the needle holder to such position.

'hat I claim is 1. A device of the class described comprising a base having a handle at its rear end and a needle plate at its forward end, spaced uprights upon the said base, a shank pivoted to the forward one'of said'uprights, a needle holder at the forward end of said shank adapted to operatively position a needle with iaspect to the said plate, a thread carrier upon the said shank, an operating lever pivoted to the rearward upright having loose pivotal connection with the adjacent end ofthe said shank and having a handle portion at its free end adjacent the said base handle, resilient return positioning means for said lever and shank positioned between said lever and base, the said lever and shank being noimally in substan tial alinement with each other and in parallelism with the said base.

2. A device of the class described comprising a base having a handle at its rear end and a needle plate at its forward end, spaced uprights upon the said base, a shank pivoted to the forward one of said uprights, a needle holder at the forward end of said shank adapted to operatively position a needle with respect to the said plate, a thread carrier upon the said shank. an operating lever pivoted to the rearward upright having loose pivotal connection with the adjac nt end of the said shank amt having a handle portion at its free end adjacent the said base hamlle, resilient return positioning means for said lever and shank positioned between said lever and base, the said lever and shank being normally in substantial alinement with each other and in parallelism with the said base, laterally projectingarms and a housing carried by the said base, a. shaft journaled through the said housing and arms, a work engaging feed wheel upon the forward end of said shaft projecting slightly above the receiving face of said plate, a pinion upon the opposite end of said shaft, a rotating member extending through said housing and lever and operatively connected to said pinion within the said housing, and rotation imparting connections between said rotating membep'..ml lever.

In testimony whereof I allix my signature in the presence of two witnesses.

PETA W AJ DIC.

'itnesses:

Mun: Slnnnxa, Tnumto Suo'rml.

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