US2109314A

US2109314A - Binding and piping attachment for sewing machines

Info

Publication number: US2109314A
Application number: US73544A
Authority: US
Inventors: Walter C Greist; Carl G Baehr
Original assignee: Greist Manufacturing Co
Current assignee: Greist Manufacturing Co
Priority date: 1936-04-09
Filing date: 1936-04-09
Publication date: 1938-02-22
Anticipated expiration: 1955-02-22

Description

Feb. 22, 1938. w Q GRElST ET AL 2,109,314

BINDING AND PIPING ATTACHMENT FOR SEWING MACHINES Filed April 9, 1956 manna Irwenfirw 7% M4;

M w at 15 view of the improved attachment.

Patented Feb. 22, 1938 UNITED STATES PATENT OFFICE BINDING AND PIPING ATTACHMENT FOR SEWING MACHINES Application April 9, 1936, Serial No. 73,544

1 Claim.

This invention relates to an improvement on the binding and piping attachments for sewing machines covered by U. S. Patents Nos. 1,853,412 and 1,853,413, and has for its object to provide an attachment capable of doing the work performed by the devices of the said patents in guiding a. binder tape or strip and one or more piping tapes or strips to the needle of a sewing machine, in simultaneously attaching such tapes or strips to the edge of a piece of textile fabric. This improved attachment, however, is of much simpler construction than the attachments of said patents and can be made at much less cost.

In the accompanying drawing Fig. l is a plan Fig. 2 is a side view of the same looking from the right of Fig. 1. Fig. 3 is a section on line 3-3, Fig. 1, and Fig, 4 is a partial section on line 4-4, Fig. 2, looking down, Figs. 3 and 4 showing the parts greatly enlarged. 20 Referring to the drawing, I2 denotes a presserfoot having a shank l3 by which it may be attached to the resser-bar of a sewing machine, said presser-foot having a needle hole l4. Attached to the presser-foot l2, by a rivet I5, is a plate [6 to which is secured, preferably by soldering, a scroll II. The scroll is constructed with a series of slots [8 of different heights or lengths for the purpose of accommodating binding tapes or strips of different widths, or for the purpose 30 of receiving a binder tape or strip and one or more wider piping tapes or strips, these piping tapes or strips being successively wider than each other when plural piping is to be done.

Beneath the head of the rivet I is a bowed spring l9 bearing on the plate l6 so that said plate is frictionally attached to the presser-foot l2 and may be adjusted laterally by the upwardly projecting lug 20, integral with said plate and which may be grasped by the thumb and finger of the operator. By virtue of this adjustment the line of stitching, relative to the edge of the work to which the binding and piping strips or tapes are being attached, may be varied, as will be understood. To accommodate such adjustments 45 the needle-hole 2| in the plate [6 is in the form of an elongated slot.

The important novel feature of the invention is in the particular construction of the scroll I1. The right hand edges 24 of the in-turned 50 parts 22 of the upper and lower lobes of said scroll being in close proximity to the inner concave face of the upwardly extending or vertical part of the scroll. One or both of these parts 22 is or are constructed with forward extensions 23, and the curved part of the upwardly extending or vertical portion of the scroll has a forward extension 25, all of which extensions run close up to and substantially in contact with the presserfoot I2, and thus reach near to the needle-hole H in said foot. 10

Owing to this construction of the scroll 11 the binding and piping tapes or strips passing through the scroll I! will be securely pressed against the inner concave face of the scroll and will, in the operation of the invention, be securely guided and 15 controlled in their passage from the delivering end of the scroll close up to the needle, thus accurately governing the stitching in its desired proximity to the edge of the binding strip, regardless of what width of binding is being used, even when attaching the narrowest folded binding strips or tapes to the edges of textile fabrics.

Although it may be advisable to construct both of the in-turned parts 22 with the extensions 23, it has been found, in practice, that the improved attachment will work satisfactorily or success- 25 fully with only the lower extension 25.

It will be understood that the work performed by the use of this attachment will be alike on both sides, which is desirable with some kinds of goods, as in finishing the edges of curtains, both 39 sides of which are more or less exposed.

We claim:

A sewing machine binding and piping attachment comprising a presser-foot having a needlehole, a plate mounted on said presser-foot, a scroll secured to said plate and having a pluralitv of slots of different heights or lengths, the inner edges of the in-turned parts of the lobes of said scroll being in proximity to the inner concave face of the vertical part of said scroll, and the 40 forward end or ends of one or both of said inturned parts being extended forward so as to be close up to and substantially in contact with said presser-foot and near the said needle-hole, and means permitting lateral adjustment of said plate and the scroll attached thereto on said presserfoot.

WALTER C. GREIST. CARL G. BAEI-IR.