US1608116A - Gauge for sewing machines - Google Patents

Description

Nqv123,1926. f 1,608,116 l H. B. OLSON GAUGE Fon SEWING MACHINES Filed June 24. 1925 from vview diiriii"`a q Aihiie the thread were ,neeessaryl es Patented Nov. 23, 192.6.

-YUNITEQ STAES ,11,608,1ie i Param certes.

HENRY B'. OLSON, OF ROCKFORD, ILLNOIS.

GAUGE FOR SEVING MACHINES. l

Application filed .Tune 24, 1925. eral No. 39,225.

My invention relates to gauges for sewing machines, and` more especially to a gauge for attachment to machines for sewing harness, such as horse collars, belts or other rear edge or back of the collar with a whipping-up stitch at a narrow space or marginr from the near edge, and at the front at a similar margin from the front edge of the body. The rim isr then sewed to the body by means of a leather thong making a pop7 stitch, as by machines well known in the art as thong sewing machines as shown, for example, in the patent to Gnoeth, 1,193,460 dated August l, 1916.

rlhe sewing or stitching at the front is known as a middle seam owing to the niiddle seaming lof the rim vof the collar to the body by means of a thong, for which the thread stitching serves as a guide within which the awl punches and the thonging is done in the middle seaining operation on the machines referred to. seaming with a thong has been either done by hand where the collars or plies are thick, such as Aat the throat portion, with slow production, or it has been difficult to keep within the thread seam so as not to overrun it and atthe same time maintain a uniform and proper even overlap between the body and the rim over the body of the collar. The machines could not accommodate lthe thickness at the throat portion owing .to the .presserffoot Vand awl carrier moving tooclose to the bed plate or table, and it has been impracticalif not impossible to Asew the rim'to thebody of a horsecollar with- .out the preliminary stitching because there was no means of guiding the'edges or guaging the overlap` of the rim and body,` Vespecially since the rim fits over the body and concealsy or precludes the edges of the body the sewing operation.

Such middley a guide to the overlap and thong stitching.

The present invention is designed in connection with the machine to gauge the overlap and render the preliminary thread stitching unnecessary by maintaining the proper and uniform overlap of the rim with respect to Ithe body, thus making it possible to sew the rim directly and in the first instance'to the body with a thong and with proper overlap of the rim on the body. This Veliminates the thread stitching operation and cost thereof and .permits the collars to be sewed more quickly and economically, so that cost of manufactureis greatly reduced and production increased from seven to ten `fold Y The invention further comprehends and has for its object., the provision of a gauge, especially for thong sewing machines for Vhorse collars, which comprises a simple and novel structure capable of convenient, practifal, and economical manufacture, and application easilyto they work tables of sewing machines, especially of'. thetype referred to. Furthermore, the gauge will readily accom iiiodate the parts, such as collar'body and rim, to be sewcd together and effectively and evenly guides the edges of the parts up to a maximum thickness. It also prevents too 'little or excessive overlap as will be hereinafter-more fully set forth.

rIhe invention further consists of certain novel combinations and arrangements of parts to be hereinafter morefully described.

Other objects and attendant advantages will be appreciated by those skilled in this art as the invention becomes better understood by reference to thecfollowing description when considered in connection with the accompanying drawings, in which- Figure l, is a fragmentary side or front elevation illustrating a type of sewing machine to which the invention may be apv, plied .especially Figli, thereis shown a convenstith sewing `machine of which li ne l n fired to the drive shaft suitably journaled in the frame. C represents the upper and lower take-up mechanism` including semicircular 'thong guides with thong drawing or take-up arms D rotatably mounted on the guides (l, and E designates the upper and lower needle bars adapted to grip the needle F carrying the thong (i. The arms D are differentially rotated in therusual or any preferred manner and have the usual thong grippers, while the needle bars are rec'iprocated in timed relation thereto. The awl H, carried by the reciprocating awl bar or carrier I, is actuated by suitable mechanism, to produce the stitch in the work lV movable on the table T beneath the presserV foot P.

The table T has a shield S, so that the top 10 of the table fo 1ms with the top 11 of the shield S, a shoulder 12l and a circular part 13 therebeneath adapted for housing the lower take-up mechanism, together with mechanism which grips the needle or leader by which the stitching by means of the thong is carried on. The presser foot P has the awl bar or carrier mounted at one side thereof and beveled as at l/l and 15, t-he cutaway corners preventing the carrier pushing the work, especially horse collars, out of position and accommodating very thick work, especially the throat portions of heavy collars, without interference with the sewing operation.

The gauge consists of a plate 15 detachably secured at 17 to the inclined face 18 of the table or bed of the machine, and has a portion of its upper edge directed horizontally at 19 over the table leaving the corner 2O recessed. A plate or sliding section 21 is slidably mounted on the plate 16 having slots 22 receiving screws 23 which are secured to the plate 16 and have large heads straddling the slots, to permit free sliding movement of the plate 21. The latter is normally held upward by a spring 24 having its upper end anchored to the plate 16 and its lower end connected to the lower end of plate 21 or an extension thereof, as shown. The upper end of the plate 21 has an overhang-ing part or arm 25 directed inwardly at right angles laterally over the table top 10, with an upturned end 26 and a forwardly and downwardly curved plate or guard 27 at thD front, formed integral therewith or secured thereto.

Thong sewing or stitching has heretofore been carried on with much ditliculty, especially in sewing the rim of a horse `collar to the body thereof. It is customary to stitch around the plies of the body, designated at 28 in the drawings, to sew them together and then to stitch the edges of the rim 29 over the body portion in order that the parts will be held in proper alignment for stitching the same together with a thong. In doing this, an awl 30 is brought downward to provide the necessary hole for receiving the needle or leader an-d thong anchored thereto. Difiiculty has beenV experienced in getting and keeping the proper overlap. The novel gauge overcomes this objection, since with it, the part 25 is spaced above the table and accommodates the lower fold of the rim 29 therebeneath. rllhe edge of the lower fold engages the edge of the horizontal gauge portion 19 as indicated at 31, and the plies of the body rest upon the horizontal arm 25 and engage the shoulder or 11p-turned ond 26 at their inner edges, to limit the overlap and serve as a guide for ganging the same. 'The top fold of the rim lits over the body 28. l

With the parts arranged as indicated in 3 of the drawings, the proper overlap will be insured and the stitching of the rim to the collar will be facilitated. In fact, it

is possible to eliminate the initial operation of stitching the parts together with a thread since the Vgauge maintains the overlap uniform, By reason of the plate 21 being held up' by the spring 24, the space between the overhanging gauge part or arni 25 and the table top 10 will accommodate. heavy thicknesses of material and` still allow the necessary downward movement to prevent injury or bending of the gauge parts and to bring the plies of material together so that they will be firmly brought in contact when stitched by the thong. lVhile the device is described for use in connection with horse-collars, it is not restricted to this use but as a special adjunct, the awl carrier or bar I is provided with beveled or cutaway corners as indicated at 1li and 15 to accomiodate a considerable thickness of material which is generally present at the throat portion of the collar; It should also be noted that the lower fold of the rim 29 is prevented from riding up over the gauge portion 19 by the inner edge 33 of the curved depending front portion 27, this feature serving to further maintain the' overlap and stitching uniform. By this device, the rim and body can be stitched together by the thong without preliminary stitching, thus greatly increasing quantity production and reducing cost of manufacture.

It is believed that the foregoing conveys a clear understanding of the objects prefaced above and while I have illustrated but a single working embodiment it should be understood Vthat changes might be made in details of construction without departing from the spirit and scope of the invention as expressed in the appended claims, in which- I claim:

lill

1. In combination with'a thong sewingV n'iachine comprising a table, and an awl carrier provided with an awl, a gauge coin.-

prising a plate attached to the table at one side and having a horizontal portion extending over the table to provide a shoulder facing in one direction, and an overhanging part spaced above the table and above said horizontal portion and provided ,with an upturned end forming an oppositely facing shoulder, and a downwardly and forwardly extending part forming a shoulder facing in the same direction as the first shoulder.

2. In combination with -a thong sewing machine comprising a table, and an awl carrier provided with an awl, a. gauge comprising a plate attached to the table at one side and having a horizontal portion extending over the table to provide a shoulder facing in one direction, and an overhanging part spaced above the table and above said horizontal portion and provided with an upturned end forming an oppositely facing shoulder, and a downwardly and forwardly extending part forming a shoulder facing in the same direction as the first shoulder, said overhanging part having a portion thereof slidably mounted on the plate at one side of the table for vertical movement, and means to normally maintain said horizontal portion elevatedy and adapted to permit the same to be depressed.

3. In a gauge attachment of the class desf'ribed, a main attaching part having a horizontal portion forming a shoulder facing in one direction, a second part carried by the attac-hing part and having an overhanging portion extending above and be- `vond the horizontal portion, the latter providing a shoulder at its free end facing in the opposite direction from the first shoulder, and a forwardly and downwardly curved portion provided on said second named part and having its inner edge facing in the same direction as the first shoulder and substantially in alignment therewith.

Ll. A gauge for thong sewing machines having a table with a front shoulder and a sloping side, a main plate attached to the side and having a cutout forward corner and a horizontal head part extending partly over the table, a second plate mounted on the main plate and having an overhanging part extending over and spaced above the table beyond the horizontal part, said overhangin@V part having an upturned free end and a forwardly and downwardly extending portion, the inner edge of which is adapted to guide the edge of the lower fold of a collar rim in conjunction with the inner edge of the horizontal Vpart while the collar rim is resting on the table and has the upper fold thereof above the upturned end of said overhanging part, said overhanging part also being arranged to have plies of a collar body rest thereon against the upturned end thereof to maintain the same in uniform overlapped relation with said collar rim while being sewed.

5. In a sewing machine comprising a table, a presser foot operating over said table, and a needle operating mechanism, a gauge comprising a main plate fixed to said table and providing a shoulder on top of said table facing in one direction to gauge and guide the edge of one piece of material to be sewed, and a second plate movably mounted with respect to said main plate Vand having a gauging and guiding portion projecting over said table providing a shoulder facing in the opposite direction from the first shoulder to gauge and guide the edge of another piece or pieces of material to be sewed to the first piece, said gauging and guiding portion being normally resiliently held in elevated relation relative to said table to permit the passage therebeneath of the first mentioned piece of ma* terialv to be sewed but being disposed beneath and in spaced relation to said presser foot whereby to permit the guiding of a fold of the first mentioned piece of material between the presser foot and the second men tioned piece of material,said guiding and gauging portion of said second named plate being arranged to be depressed in the operation of the presser foot substantially as de scribed.

6. In a sewing machine as set forth in claim 5, the provision of an auxiliary gauging and guiding part for the first mentioned piece of material to be sewed, disposed sub'- stantially in alignment with the first named shoulder but spaced with respect thereto l substantially as described.

HENRY B. OLSON.

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