US1592293A

US1592293A - Sewing-machine attachment

Info

Publication number: US1592293A
Application number: US707663A
Authority: US
Inventors: Tracy F Brackett; Monfort Nicholas
Original assignee: Individual
Current assignee: Individual
Priority date: 1924-04-19
Filing date: 1924-04-19
Publication date: 1926-07-13
Anticipated expiration: 1943-07-13

Description

July 13,1926. 1,592,293

T. F. BRACKETT ET Al.

2 Sheets-Sheet 1 5553 23 imummm-i5Immi 1 39 f'utIYI-ffmllll 2# "'ff'm'?" MINI 3 -37 Y 44 45 46 49 4f f@ 4a ATTORNEY July -13 1926; v1,592,293

T. F'. `BRACKETT ET AL SEWING MACHINE ATTACHMENT Filed April 19'. 1924 2 Sheets-Sheet 2 lin 36 ATTORNEY APatented July 13, 1926.Y

UNITED TRAC'LLr F. BRACKETT, or ARLINGTON, Jnas,ANn NICHOLAS ivioNroRT, 0F

BROOKLYN, NEW 'YORK'.

vSEWI'NeeivprACimn ATTACHMENT.

Application filed April 19, 11924. serial No. 707,662.

vThis invention relates to improvements in sewing machine attachments for producing a row of stitches around .a circular object. Y

One of the objects of they invention yis kto provide an attachment specifically adapted for `the manufacture of powder puffs', in which a pile .fabric is disposed on the exterioi1 surfaces and a sottzcushion tobe completely enveloped by turning the sewed `,article inside out. y

Another purpose is to produce van rattachment so associated with a sewingrnachine that the article to be sewed may be moved intoor out of the patho the needle, rotated wh-en in sewing position and its substitution eiiected in a rapid manner.

A further aim. is in the provision of nieans for lloosely ybut securely clamping the several plies of rfabric together, including the foraininous padding, tucking the ypile `of enveloping fabric so as to avoid being engaged by the stitches and applying a suitable compression I.to the .piles as the article is moved under the needle.

These .and other important and practical -aims and objects yare accomplished by the novel construction` and arrangement of parts. hereinafter described and shown yin the accompanying drawings, forming an essential part of this disclosure and in whichf f Figure 1 is `a lslide,y elevational view of ,well knowntype "otr sewing machine, showing the application of the invention.

Figure 2 is a top planview of the saine. IFigure '3 Vis a partial sectional, partial plan vi'ew of the *main operative parts, drawn to an enlarged scale. r

Figure 4 is a partial transverse sectional view ytaken substantially a plane indicated by the line 4 4 of Figure 3.

Figure .5 is a fragmentary sectionaliview showing the powder pull prior to stitching. .Figure 6 is la similar view of :the saine f after ,stitching I Figurzeff' yis 'a perspective view of the powder. nuit ,after .Stitching and.- eamng, preliminary to finishing by closing and ysewing lthe aan Fie .re's anl ler. pieces et aan 1 1 wo en fabric' 1 hay Olie idle jefes@ iig-a vel@ t `rposes, frame'. land raised, Vforwardly extending common type.

.interposed between the smooth surfaces Aofthe fabric is a cushion 12, soft and semielastic, as cotton, adapted lto extend the cheeks or sides of the pad when lused yas a brush orvdauber in applying` powdered substances to the skin.

`Such pads `are preferably made by attaching the plies together, the Apile surfaces being adjacent and the cushion element on lthe=outside, as clearly indicated in Figure A row of stitches 13 are disposed along the border or margin, except at a `gap 1 4,

y.the pad then. being turned inside out to ,bring the cushion 12 vbetween the piles or layers lO'of fabric backing, the pile 11 being outermost.

Referring vnow more particularly. tothe lneclia'nislnfor assembling1 and stitching the pads, `Figuresl and .2 showin general, the well, known VVillcoX` and Gibbs sewing ymachine as adapted to manufacturing purthe same consisting of a base 15,

arm 17.

At the front .of this arm are guides for theneedle bar.18,factuated bythe lever arm 18', pivoted on the frame near therear and operatedby the usual ymeans on the horizontal shaft 19', the'same being provided with ai ycombined band and hand wheel 20. A :needle r21vis fixed tothe lower end ot' the needle bar 18, the same being provided ,with .thread v22 guided and; tensioned as usual, theniachine so 'far described being of l Attached to` the forward part ,of the `.frame 16 is a :bracket support 23 onk which `pivotedy on a pin 24, is a plate arm 25, provided with a stop 2bk limiting .the outer movement-s or swing of the plate by Contact with the extendinggcorner 27 of thebracket, against the straight edge of which the plate is held when in operative position'.

The outer .end ot' .the element has Va circular, cup-lileriin 28 except for a single open space `29, the purpose of which is to allow the rim to clear the .needle `when moved laterallyintoor out of its path.

W'13.1.1525 .bottom walls() centaine. a circular .into .,which.: .projects :hollow wheel.. .3.1 ,having teeth .011, its. pe-

webs: remaining ,a .phuialiity gs. .3 3 y tov lighten the censtruct'en, haring enfrente hnbig. ,rotatably t llbnj. Supporti. 25,', and

the hub having faxed on its spindle 35 rotatably mounted in the hub 3? of the support.

,A spring pawl 39 is secured to a lug formed on the support 25 by the screw 38, the point of the pawl 89 engaging the teeth of the ratchet 81 to prevent a reverse movement of it.

An actuating pawl 40, having a hooked inturned end 41, adapted to engage the ratchet on its opposite side, is fixed at its outer end on studs 42 and said studs being secured in a movable in guides 45 formed on the bracket *23.

rl`he slide 44 is moved reciprocatively by a link 46, fixed on a spindle 4? rocked with its bearings 48 by a link 49, the outer end of which is slotted to be adjustably engaged by a bolt 50 moved by an arm 5l actuated by a cam (not shown) fixed on the shaft 19.

From the foregoing it will be seen that the ratchet wheel 8.1 will be moved intermittently, in timed relation to the movement of the needle, and further, that the extent of motion, or in othelwords, thenumber of teeth engaged by the pawl may be controlled by changing'the stroke at the bolt 50.

Fixed in the chamber of the ratchet wheel 3l is a circular block of cork 52 to extend at least flush with the upper edge of the wheel, and on which is disposed the article to be sewn, as the pad indicated, the cushion clement l2 being lowermost.

Pivoted in a pair of spaced lugs 53, raised from the swinging plate 25, an arm 54 having at its outer end a rino 55 eno'ao'ino t5 t3 C? t3 :D

an annular recess in a stud 56 provided with a knurled knob 57 by which it may be conveniently rotated.

The lower end of the stud is iixed in a relatively heavy clamp disc 58, adapted to rest on the pad to rotate with it, the reduced edge of the clamp disc clearing the path of the needle 21 when the plate 25 is in operative sewing position, the needle passing into the opening 59 in the bottom wall 30 of the pad holder, when at the bottom of its stroke, the Vconstruction ap pearing best in Figure 4.

Rigidly attached to the arm 54 is a curved bar (il) having an open loop (Si at its outer end partially encircling' the needle 21 and acting as a presser-foot to hold the fabric firmly at the point of penetration of the needle, closely adjacent the periphery of the clamp disc 58.

In order to open the pile of the fabric, so as to preventithe pile from becoming` entangled in the stitches, an opener 62, of generally elliptical shape, is formed at the end of a spring wire arm 68, the same being held by a clamp SorenT 64 fixed at a convenientJ point in the frame 23 of the machine, in

such manner that the opener s'disposed to enter between the plies of piles as shown in Figure 5.

in operation the pad material is placed on the cork plate 52 within the holder, at that time swung outwardly, the clamp disc placed thereover and then the holder .is swung into operative position as shown in igure 3.

Upon starting the machine, the sewing will begli and co-incidently therewith the work will rotate, the pawl and ratchet acting to feed the work in a circular path until the machine is stopped, preferably to leave an open unsewed gap 14- to permit turning the article inside out.

Stopping of the machine is effected by the handwheel 2O and the needle should be at its highest point before swinging the holder outwardly, whereupon the clamp disc may be raised and the thread cut by passing over the knife like edge on the upper part of the spring pawl 40.

Although l have described my improvement-s with considerable detail and with respect to certain particular forms of my invention, l do not desire to be limited to such details since many changes and modifications may well be made without departing from the spirit and scope of my invention in its broadest aspect.

Having thus described my what l claim as new and by Letters ljatent, is z- 1. Sewing mechanism comprising in combination with a frame, a. shaft revoluble therein, and a reciprocating needle, a circular work support pivoted to said frame adapted to swing into and out of the path of said needle, a ratchet wheel revoluble in said support, a clamp hinged to rest on work disposed in said support, a ratchet pawl actuated by said shaft to engage the teeth of said ratchet wheel when said support is in operative position relative to said needle. y

2. Sewing mechanism comprising in combination with a frame, a shaft revoluble therein and a reciprocating needle, a circular work support pivoted to said frame adapted to swing into 'and out of the path of said needle, a ratchet wheel revoluble in said support, aI pliable friction disc on said ratchet wheel to receive the work, means for pressing the work upon said disc, and means for rotating said ratchetwheel during the up stroke of said needle when said support is moved into the path of the needlel 3. Sewing mechanism comprising in combination with al "frame, a shaft revoluble therein and a reciprocating needle, a cupped work support having an arm pivoted to said frame and movable relatively to the path of said needle, a ratchet wheel revoluble in said support, means timed with the `movement of Said needle for actuating said invention, desire to secure ratchet wheel, means to prevent retrograde movement of the ratchet wheel, a pliable friction disc on the ratchet wheel,`and a clamp hinged' to said support lto rest over said disc. l

4. Sewing `mechanism comprising in combination with a frame, a shaft revoluble therein and a reciprocating needle, a cupped work support having an arm pivoted to said frame and movable relatively to the path of said needle, a ratchet wheel revoluble in said support, a spring pawl actuated by said shaft to engage the teeth of said ratchet wheel, means for adjusting the stroke of said pawl, means for preventing a reverse movement of the ratchet'wheel, a block of cork on the upper surface of said wheel, and a gravity actuated clamp hinged to said arm to rest upon work disposed upon saidcork.v 5. Sewing mechanism comprising in com` bination with a frame, a shaft revoluble.V

therein and a reciprocating needle, a cupped work support having an arm pivoted to said frame and movable relatively to the path of said needle, a ratchet wheel revoluble in said support, a spring pawl actuated by said shaft to engage the teeth of said ratchet wheel, said pawl having a portion provided with a knife edge to sever the thread at the end of the sewing operation, frictional means on said wheel to receive the work parts, and weighted means for holding the work thereon.

6. Sewing mechanism for circular sheets of pile fabric comprising in combination with a frame, a shaft revoluble therein and a reciprocating needle, a cylindrical support for the fabric sheets, said support having an arm pivoted to said frame to move in a yhorizontal plane into and out of the path of said needle, a rotatable work receiving y seat in said support, means for intermit n tently actuating said seat, a hinged cover for for said kholder adapted to rest upon the fabric sheets, and means for separating the pile kof the fabric sheets at a point immediately in advance of the needle.

7. Sewing mechanism for circular sheets of pile fabric comprising in combination with a frame, a shaft revoluble therein and a reciprocating needle, means for holding two or more plies of pileI fabricV discs upon a support, manual means for swinging said support into or out ofthe plane of action of said needle, means for rotating the fabric discs to feed their margins to the action of the needle, said means presenting a cutting edge adapted to sever the thread at the end of the sewing operation, and means for spreading the pile of the fabric discs at a point immediately in advance of the needle. Signed at New York in the county of New York and State of New York this 18th day of March A. D. 1924.

` TRACY F. BRACKETT.

NICHOLAS MONFORT.