US90340A - Improved tuck-creaser and guide for sewing-machines - Google Patents

Description

G. F. CLEMONS. Sewing-Machine Guide.

No. 90,340. Patented May25, 1869.

Wi??? eS ses ;v

UNITED STATES PATENT OFFICE,

GrIJORGrEF.A CLEMO'S, OF SPRINGFIELD, MASSACHUSETTS.

lMPROVED TUCK-CREASER AND GUIDE FOR-SE'WING-M'ACHINES.

Specification forming part of Letters Patent No. 90,340, datcdMay 2 5, i869," A

To all whom 'it may concern:

Beit known that I, GEORGE F. CLEMoNs, of Springfield, in the county of Hampden, in the State of Massachusetts', have invented a new and useful Combined Tuck-Marker and Cloth-Guide for Sewing-Machines; and l dohereby declare that the following is a' full and exact description thereof, reference being had to the accompanying drawings, and 4tothe letters of reference marked thereon, making part of this specification. v L

Figure l is a plan view of the device.' `Fig. 2 is a side elevation thereof.

The nature of my invention consists, chieiiy,

in modifying the construction of my formerlypatented cloth-guide and in adaptingto it adlace, so as to be used for marking tucks of various widths, and also making it removable, so as to use the device for cloth-guiding; and, second, the employment, in connection with the said creasing-blade, of a notched non-vibratin g adjustable pressure-plate, which crimps and presses the cloth over the blade, and thereby marks or creases aline on the cloth for the tuck. This creasing-plate is also the clothfguiding plate, and-a novel feature of my use of it is that its constant pressure on the cloth at the creasing-blade and itstendvency-thereby to force or deflect the advancing cloth too strongly inward and `Itoward the gage-faceof the device are counteracted by adjusting the pressureplate so as to simultaneously bear and press upon the cloth at or'near its inner edge, and thus produce an opposite and outwarddeflection of the cloth, so thatitis made to run straight through the sewing-machine.

Referring to the drawings for a description of the construction and operation of my said invention,the device is constructed upon abuseplate consisting of the blade parta and the shank l, the latter having longitudinal slots c c c made i'n it for adjusting and securingthe device tothe sewing-machine bed-plate, asis commonly-done 1n cloth guides or gages.

dis a rigid plate lying over the base-plate a, and set parallel to it in position, as 'shownv in `the drawings, with its wide side turned down at right angles'and soldered or securelyfixed at its edge to the base-plate a, at right angles to. it, Hush with the line of the junction of theplate a. and shank b, the part thus turned down and secured forming a gage-plate, e, for the device.

Underneath the plate d is ,a spring-plate, bentdouble to form two nearly equal and parallel parts or leaves, g and h, the upper one of which,'g,is fastened at itsl end to the plate d,'and the lower one, h,is fastened ,-near, its bow end to' and carries a 'cloth guidingand 'creasing plate, transversely curved up in a segment ofl a circle, and having V-.shap'eds notches cnt across its lower side` atjright `an.-l gles to it, at equal distances from each other;

widths apart of the tuck-marks. Y

The base-plate a has on its upper surface a graduated `scale of distances,` corresponding with the distances apart of the notches on the guide-plate t, and forming an index for setting the knife-edgeto markgany required width of tuck.

j isa thumb set-screw working verticallyin the outer end of the plate d, and bearing at its. lower end on the upper plate.

lo is a similar thumb-screw working iu apro-4 jectin g' piece, f, its llower end on the outer end of the lower leaf, h, ofthe spring-plate.

l is a longitudinal slot ont in the baseplate a. Y

*inis a thin piece of spring-plate, having-one" end turned up at right angles and formed into a vertical knife-edge, n, for creasing a line in the cloth. The plate m is attached to the plate a byaslidiu'g and pivoted rivet,p,which passes through-m and the .slot l. lts narrower end isl bent to form a downward-bearing spring, which Vpresses on the plate a and keeps the plate lm, in position longitudinally on the plate d. Aprojection, o, is punched up on the lower side ofthe spring, and it ts'into the slot land as q r, of tuck-marking.

'The gage-plate e is cut and turned up horizontally, forming the projection f, in which the i screw 7c works, and leaving an open space in Asoals'toV form scale to 'measure the desired"-5 leaf, g, of the springf-V of the plate d, and bearing at keeps the knife-edge n parallel with-the line,

the clot-h advances in sewing the gage-face for the spring h and guide-plate .i izo-Work in.

uid-in and creasing late t' in` Figs. land 2, g e s,

shall bear suitably on the sprin gs g and h toprol duce such distribution of sprin' g-pressu re upon the guide-plate 'ias that it will press more upon the cloth outside than inside the line of seam being sewed, the principle of the guiding action being that when there is more pressure of the guide-plate on the side the lineof seam the cloth willbe deflected toward the gage-face, pressure inside than outside the seam the clothwill be guidedaway .from the gage-face. In-v creasing the pressure of the screw j upon the lplate g increases thepres'sure at the outer part oi' theguide-plate,.and increasing the pressure of the screw k upon the spring h increases the pressure at the' inner partof the guide-plate z', so that by turning. the screwsjand 'lc suita blythe'desiredguiding actionlis given to the guide-plate for guiding the clothinx-.sewing reitherwide or narrow seams and for heavy or light fabrics, different widths ofs'eams' and different fabrics requiring tion otthe plate Ifjit is desirable to construct-the described devicel to be'used knife-edge plate m, the slot l, and thenotches in the guide-plate i may be dispensed with.

- In using the described device as a `tuckmarker the cloth is placed between the plates a and fi and'over-the knife-edge n, with the edge of the cloth against thegage-face e, and vogn applying pressure of the screw i"sufticient to` form a crimped or creased line on thecloth by theknit'e-edge n and different guiding Vacit, the pressure by the guide-plate :i at the knifeedge a, being Well outside the line of seam st, v`will (on the principle of guiding action betore stated)'deflect the cloth too strongly against the gageface e; but this too great inward guiding action is counteracted by the means described of turning the screwv k and giving suchV pressure of the guide-plate -z at its-inner end oponthe edge ofthe c loth as Will produce an outward guiding action and canse the cloth to run straightthrough theseWing-machine; and the screws j and lr make the'creasing-and guiding-action of the on Athe cloth plate t' guide ythe cloth straight either in markf ing wide or narrow tucks. The guide-plate i also serves to smooth and keep from doubling up or wrinkling of the cloth between its-edge Aand the line of creasing by means ofthe plate t' bearing on the cloth or its folds between its edge and the line of'creasing.

The plate at is shown placed underneaththey ,plate a.

cloth outside. than inand when there ismore ,set forth, for forming creases upon the cloth being sewed, whenused in com- -bination with for a cloth-guide alone, the

its engaging notch, as.

.edge plate m',

may be so adjusted as to' The knife-edge plate m may be otherwisel adapted to slide longitudinally on'the plate -a andtckeep the knifeedge n in position on the For example, the plate m may extend across the plate a and have its sides turned down so as to clasp the side edges of the'plate a'.

lln the described device the rigidv plate d,

connectedwith the parts e and 1),.(which form a sewing-machine gage.) and theguide-plate @',fconnected withthe rigid plated and the set- 'screwsj and k by adouble sjiring, gand h, form a cloth-guide similar in principle. of conf struction and in .operation to my cloth-guide formerly patented, andI therefore do not herein claim those yfeatures/of the described device only so far as they are new'in combination ot' 4parts.

I claim as new andl of myinrention l. The employment, in a tuck-marker for sewingmachines, of an adjustable knifeedge pla-te and a notched non -vibratin g spring-press t i substantially as ure plate, adapted together,

for tuck-marks means which produce.automatically, substantialiyin the manner "set forth, the described counteractin g cloth-guiding ac tion. f'

2. In a tluik-marked'l forl sewinggmachines, adapting the device to cloth and to guide it inward toward a gage-- face while the cloth' is being sewed by means ofc'ontinuous automatic pressing and crimping of the'cloth over aknife-edge plate, andl valso adaptin gthe device to produce simultaneously an outwardcounteracting guiding ofthe cloth Vby means of automatic pressure upon itf'a-t another point at or near its inner edge,'. for the twofold purpose of tuck-markin g the cloth and guiding it straight through the them to give adjustable and variable springpressure upon the cloth at the line of creasing and ator near the inner edge oi' the cloth, for

the purposes set forth. 8. The notched adjustablel pressure-'plate i,

substantially as set forth. t

4. The adjustable knife-edge plate m', in combination with the notched creasing and 'guiding adjustable pressure-plate t', when, adapted together for the purposes set forth. 5. The combination of the adjustable knifestationary baseplate a, and notched creasing and guiding adjustable pressure-plate c', when adapted together for the purposes set forth.

6. The adjustable knife-ed ge plate m, stationary base-plate a, notched creasing. and guiding plate i, adapted together for the purposes Set forth, and combined with a clothgage, when the latter is connected to the former by means which are adapted to give the described adjustable and variable springpressure to the' creasing and guiding plate z', for the purposes set forth. A, v

*Lilliev combined tuck-marker and .cloth adapted both to crease and to guide fthe'cloth,

form a. crease on the' vseW- ing'ma chine, aud, further, in such devices, adaptingv plate fm, all substantially as and for the purposes set forth.

8. The cloth-guide consisting of the 'baseplate a, slotted gage shank b, rigid plate d.,

gauge e, spring plates (l mid h, cloth guiding; plate y2', and piessure sei-srewsj and c, all sul)- stsiutially as and for the purposes setforth.

GEORGE F. GLEMONS.

Witnesses MELVILLE GLEMENS, LAURA D. GLEMONS.

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