US1008563A - Binding attachment for sewing-machines. - Google Patents

Description

A. RONTKE. BINDING ATTACHMENT FOB SEWING MAQHINES. nrmonion rum) 11 11.29, 1909.

2 SHEETS-SHEET 1.

WITNESSES:

[MENTOR ALBERT ROIVTKE Pat: Med Nov. 14, 1911.

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APPLICATION FILED APB-.29, 1909.

F811 nted Nov. 14; 1911.

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' INVENTOR 11. 51??- RONTKE ATTORNEY m rum-Am mwmm. n. c.

UNITED STATES PATENT OFFICE.

ALBERT RONTKE, 0F BRIDGEPORT, CONNECTICUT, ASSIGNOB T0 'IIHE SINGER MANU- FACTURING COMPANY, A CORPORATION OF NEW JI RISEY.

BINDING ATTACHMENT FOR SEWING-MACHINE Patent ed Nov. 14, 1911.

Serial No. 492,916.

To all whom it may concern:

Be it known that I, ALBERT RONTKE, a citizen of the United States, residing at Bridgeport, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Binding Attachments for Sewing-Machines, of which the following is a specification, reference being had therein to the accompanying drawin s.

%his invention relates to binding attachments for sewing machines, and has for its object to improve the device represented by United States Patent N 0. 882,480, issued March 17th, 1908, to A. Rontke, wherein the delivery end of the binder-head, when positioned for binding the straight edge of the material, is located a sufiicient distance from the vertical line of needle actuation to furnish the necessary length of binding for mitering the corner; and while such relationshipof the binder-head and needleactuation is practical it is desirable, especially when usin bias binding of delicate texture, that thedelivery end of the binder-head occupy a position in close proximity to the vertical line of needle actuation, which is the objectattained by the present invention. Referring to the accompanying drawings, in the several figures of which like .parts are similarly designated, Figure 1 is a view in perspective of the improved mechanism, together with the cloth-Presser, and a portion of the cloth-Presser bar and the cloth or bed plate of the sewin machine, the binderead being shown a 'usted to its normal or operative position relatively to the vertical line of needle actuation. Fi 2 is a view similar to Fig. 1, with the bin er-head shown adjusted away from the vertical line of needle actuation sufiiciently to furnish the necessary length of binding for mitering the corner. -.Fig. 3 is a view similar to Figs. 1 and 2, with the binder-headshown adjusted to the osition for forming the miter folds in the binding. Fig, 4 is a view in perspective of the throatlate. -Fig. 5 is an underside view of the inding attachment, showing the parts adjusted to the positions shown in Fi 1. Fig. 6 is a detail view later to be re erred to.

7 the needle-bar, and 8 the needle carried by said bar.

The binder base-plat 9 is adjustably se cured upon the plate 3 fly a screw 10 which passes t rough the sprir. g-washer 11, slot 12 folding blades 13 and 14 and frame 15, and is threaded into the a ljusting bracket 16 mounted in a groove 17 i ormed in said frame, which latter is mounted to slide in the groove 15 formed in the baseplate 9, pins 18, 18 secured in the plate 3 s :rving to guide said base-plate in its adjustments. A stationary bracket 19 is secured, by screws 20, 20 and pins 21, 21, to the back late 3 and provided with a resistance membi r 22. The se men- 'tal slide 23 is seated in a similarly s aped guide-way 24 formed in the base-plate 9, and is provided with a plate 25 which terminates at its inner end in a wedgeshaped portion 26; and secured to said slide and plate, by screws 27, 27, is the binder bracket 28 carrying the binder-l ead 29.

30 represents a frictio a 5 ring secured by screws (not shown) to t 1e ase-plate-9, said spring being constructec so that the surface overlapping the segmem al slide 23 will bear upon said slide and am to hold it against accidental adjustment.

An adjusting lever 31 is pivoted by ascrew 32 to the plate 25 and is limited in 1ts movements by a pin 33 secure 1 in said plate, said pin entering an elongau (1 slot 34 formed in said lever. A cam brac ret 35 is secured by suitable pins (not show i) to the underside of the arm 36 of the 18V( r 31, which latter is also provided with a man pulating bracket 37.

38 and 39 representrlugs, later to be referred to, formed on th respective folding blades 13 and 14.

The throat-plate 40 i: provided with the commonly-emplo ed ope 11ngs for the needle and feed-dog an is seen red to the bed-plate 1 in the usual manner. The portion 41 of the throat-plate is rais X1 or thickened so that its upper surface co: ncides substantially with the median horiz int-a1 plane of the binder-head.

42 represents a depression or clearance for the free end of the folding blade 14 when said blade is adjusted to the position shown in Fig. 2.

43 and 44- represent the main or body portion of the material and the binding, respectively.

In the operation of the device, supposing the parts to be adjusted to their positions.-

for ap )lying the binding to the straight edge of the material, as shown in Fig. 1, and it is desired to miter the corner, as shown in Fig. 3, the operator-adjusts the plate 9 to the osition shown inFig. 2, thus moving the hinder-head away from the needle a SUffiCi'eIlt distance to furnish the necessary length ofbinding for mitering the corner, such adjustment carrying the-screw 10 to a position in line with the-portion 45 of the slot 12 formed in the back-plate 3, said plate being provided with a countersunk port-ion 46 to accommodate the adjustment of the washer 11; next, the folding blades 13 and 14 carried by the frame 15 are adjusted as shown in Fig. 2, the free end of the blade 13 being-located above and the free end' of the blade 14 being located directly below the binding, after which the binder-head is adjusted to the position shown in Fig. 3, orat right angles to the position shown in Fi 2, thus causing the miter folds to be lai about the corner of the material, as in the construction represented United States Patent No. 882,480 previou {referred to. After the parts and inding ave been adjusted as shown in Fig. 3, the needle is caused to penetrate the material as shown in said figure, the presserfoot is raised, the folding blades returned to their normal positions, and the baseplate 9 returned to the position shown in Fig. 1, thus causing the material to be adjusted with its edge 47in line with the feed movements of the: feed-dog, or at right angles to its former position' In returnlngthe parts from the. positions shown in Fig, 3 to the positions shown in Fig. 1 the o erator" first adjuststhe frame 15'to the OSltiOIlshown in the figure last referredto, ollowed bymanipulating the bracket=37 which causes the free end 'ofithecambracket 35 to rotate in a line just inside the resistance member 22, thus causing; the cam portion of said bracket to act a ainst saidresista-nce member. Thus it wi 1 be seen that the manipulation of the bracket 37- isthe only manual control necessa for-returning. the plate 9 and segmental s -"de 23"and part-s earriedby the latterto their first-illustrated or normal positions. As the b'inderrhead'approaehes its limit. of. adjustment, the I wedge. shaped portion 26'enters between the In -38 and 39 and separates the free ends 0 the fold-' the the .thezbaekiplate 3 by the screw 10 occupying the position in slot 1.2 illustrated in the last mentionedfigure, and that when the parts occupy the positions shown in Fig. 3 the base-plate 9 is held against adjustment upon said back plate by the adjustment of said screw '10 to thecl-osed'end'of the slot 45.

Claims z'- 1. In a binding attachment for sewing machines for mitering the folds of the binding about the corner of the fabric being. actedon, a throat-plate, a cloth-presserand a base=pliate carrying an adjustably mounted binder-head, the normal position of the latter being substantially in a linewith the seam formation, said base-plate having adjustments in a line corresponding substantially to the line of seamformation to deliver throu h-the binder-head the necessary length ofb-lnding for mitering the corner of said fabric,. and means for adjusting said binder-head into operative relationshipwith the transversely arranged edge ofthe material next to be bound.-

2. In a miter-binder for sewing machines for mitering the folds of'the binding about the corner of the fabric being acted on, a throatplate, a clothresser, a baseplate having adjustments in a line corresponding substantia 1y with the line of seam formation and carrying an adjustable binder=head and folding blades, the latter coacting with Saidbinder headTtO form miter folds in the binding at the point' ofintersection. of the transversely arranged edges of'the fabric being-bound.

3. In a binding attachment for. sewing machines, a throat-plate, a clothresser, an adjustably-mounted base-plate, a binderhead and folding,blades'adjustab'ly mounted upon said baselate, in combination with a cam bracket an a resistance member for returnin said base-plate toits normal "position, su stantially as described.

4; In a binding attachment? for sewing machines, a throat-plate, a cloth-presser and a baselate carrying an adjustably mounted bin er-head, the normal of the latter being substantially in hne with the seam formation, said base plate having adjustments in a line correspond" substantiallj to theline of seam formation to deliverthrou h the binder-head the necessary length 0 bindinfor mitering, the corner of said fabric, anl'rneans for adjusting ositi'on said binder-head into operative relationship In testimony whereof, I have signed my with the transversely arranged edge of the name to this specification in the presence,

material next to be bound, in combination of two subscribing witnes es.

with means for locking said base-plate ALBE RT RONTKE. against accidental adjustment when said Witnesses:

folding blades are in operative relationship J. J. FINCH,

with said binder-head to fold the binding. ABBIE M. DONIHEE.

Copies of this patent may be obtained for five cents each, by addressing the "00m: dssioner of Patents,

Washington, D. G.

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