US1826610A - Mender attachment for sewing machines - Google Patents

Description

Oct. 6, 1931. M. M. FoNl-:s

MENDER ATTACHMENT FOR SEWING MACHINES Filed Jan. 5. 1929 y safentedy ct. 6i,-

lizaalc A Y',MA.RVG'ARET IVI. FONES, OFKNEWJYORK, N.,Y.

MENDERATTACHMENT ronfsnwnc MACHINES, j.

Application filed January 5, waa-seriali No. 3o,55s.

Y This invention relatesfto` an adjusting at-- l tachment for sewing mach1nes,'and, more particularly,to an attachment by which the presser-foot may be adjusted and held by the resilient friction of the said attachment at j variable distances above the cloth to be sewed, and, especially in that branch of sewing knownas mending,l Y j' The object of the invention is to provide a 1c simple and eifective, easily operated device,

` adaptable to Vall types of sewingmachines, v by means of which they presser-foot may. be

,readily raised or lowered, as occasion` rekvquires, and fric-tionallyr held at 'will Vat the l5 exact dista-nce above the piece or pieces of cloth or `other fabric tobe sewed, whichwill best accommodate-the thickness of the materials to be sewed. ,Y v 1 The advantages of my invention are z-The mender will hold the presser-bar and presserfoot absolutely stationary whenever desired at any distance from the feed-teeth by lifting or lowering the bar with one or two fingers, thus making it possible', while using any kind of power or speed, to mendgoods freely in any direction without causing resistance, friction, or breakage of thread. It does not interfere with thet-ension or any working part of the machine,,-is small, and does not i obstruct,-is conveniently placed, and the e Vmonding done with Vit :never thickens on either side of the goods. The work can be removedv and again inserted all day if necessary withoutI touchingfthe mender, or it can be changed 'instantlyto straight-away work without the slightest inconvenience. It can lmend the thickest comfortable, quilt, or blanket, Vor the. thickest or thinnest clothing.y

i It saves time noticeably, also money, requires 4G no extra assistance from' legs or feet, and

tends to improve and preserve thehealth of Vthe operator, and greatly lessen the burden of ymending garments and heavy cloths.

` ilnits preferred form my invention con-v sistsprimarily of. a resilient, friction mem- 'Y ber adapted to :be attachedtosome desired f lpartV ot' the needley post of the; sewing ma-y chine, adjacent to the bar of the presser-l foot,-a cam-lever'for raising and lowering 5D the bar and'connecting means between the lever and the friction member by whicha slidable connection is always maintained between said member and said cam-lever, of a slightly resilient character, and with suiii* cientpressureto maintain said cam-lever at the desired point against the force of gravity, wherever the adjusting motion is stopped.

In the accompanyingdrawings is shown thesimplest form in which I have, as yet, embodiedv my invention, butit is to be understood that many changes in details of struc-` ture may be made without departing from the'spirit'of my invention.

Figure* l'is a front elevation.

Figure 2 is a side elevation.

Figure 3 is an associative view of the various details, aligned in the order of their association. l

Same letters indicate similar parts in the different `gures.

A lis the cam-lever, having the usual pivot hole a, by which it hangs ona suitable pin` Y inside the casingk which covers the usual needlebar, and presser-bar, shown in -Figures l and 2. The operation of this camlever uponthe presser-bar, in raising and lowering it is of the well-known and usual character. No change in this or other parts of thev sewing machine is needed'to accommodate my new attachment.

B is a thumb-screw, and C, al slotted bracket to be attached to the casing, as by screws, in such a manner that the cam-lever has free play to co-operate with the slot c, curved as shown, approximately to form an arc of a circle, the centre of which is the pin inside the needle post, upon which the head of the cam-lever is hung, in order to accommodate the normal shifting of the cam-lever up and down.

The association of the three most impor-A tant parts of this simplest form of my new mender attachment,-namely, the camlever, the adjusting thumb-screw, and the slotted holding plate, may be accomplished by pass- 95 ing the stem of thumb-screw B, through a hole b, made in the shank of the cam-lever,- through washer d, slot c, split washer e, and tightened by nut f, as shown in Figure 3.

i leverv and thejsurface 'of theA slotted'Y plate orsewed. lThis tension is, preferably, made slightf-'infffach just strong enough to over- Y, v `comethedownward thrust of the usuallpress- Y Y', i

V10 'erbar spring to which the cam-lever is always.

subject. lThis tension, in my preferred con-s' struction is-obviously so slight that no screw is'needed,thenatural resilience of the thiny .Y metals of which v'the bracket isrmade being k15 enough, in itself-,torcreate the tension dlesir'-A u' Vbkk Y* iv y 1.111,1 asewing1machine,ahead, apresserY footfa presser foot lifting'lever,a member rk270Y secured to the head adjacent the presser foot 25 ner. tofraise andfloWer-the presser foot'fand Vliftinglever, and means carried* by saidflever.v n Y, and` having ai'yieldable, :frictionah slidingn engagement with said member, whereby said p lever may 'be rmanipulated in the 4usual man;y

- 1 Will -befeiitmfally maintained in' any .rox w sitioninwhichitisput. 2

' 2l In.,v 'sewing machind'a ihead,`apresser- ,'oot, a presser ootlifting lever, a-meniber' 30 secured to the head ladjacent the presser foot.

Y"lifting lever, lsaid memberjb aving.v anV arcuate 'slot,A-and means Vc farried by'said lever and hav- Y ing a yieldabl,"frctional, sliding(ingang.ementv within the slot of saidmember, whereby said e5 lever may be manipulated inthe usual ,inan-y ner to raise and lower the presser foot/and will'be automatically maintained in any pol) sitionin Which'it is put. -1 ,ff l MARGARET M. FONES;

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