US1627228A

US1627228A - Attachment for sewing machines

Info

Publication number: US1627228A
Application number: US709917A
Authority: US
Inventors: Boulton George
Original assignee: Individual
Current assignee: Individual
Priority date: 1924-04-29
Filing date: 1924-04-29
Publication date: 1927-05-03
Anticipated expiration: 1944-05-03

Description

[527,228 May .3, 1927. I G BOULTON 7 ATTACHMENT FOR SEWING MACHINES Filed April 29. 1924 2 Sheets-Sheet 1 INVENTOR. M Eieczrgefioultcn 15" ATTORNEYS.

May 3 1927.

G. BOULTON ATTACHMENT FOR SEWING MACHINES Filed April 39, 1924 2 Sheets$heet INVENTOR. 0 George Baultan 9. BY M H15 ATTORNEYS.

Patented. May 3, 1927.

enonen BouL'roN, or noonnsrna; NEW YORK;

ATTACHMENT FOR SEWING MACHINES.

Application filed April 29,1924. Serial No. 709,917.

The present invention relates to attach:

ments for sewing machines, and an object thereof is to provide attachments which will permit an ordinary commercial sewing ma chine to lay and sew either a plain binding or a Hat tape adapted to be folded around the edge of a material producing what is known as a French cord binding. Another object of the invention is to provide a construction by which either the guide for the plain binding or a flat tapemay be brought readily. into cooperation with the feeding plate at will, provision being made in the feeding plate for the reception of the guide for the plain binding when the latter is used, and for filling saidspace to provide a smooth surface over the feeding plate when the guide for the flat tape is used. A further object of the invention is to provide a construction in which a guide for a flat tape is moved out of feedifngposition when the press-er foot forthe 'sewingmachine is elevated, means being employed for automatically holding thefiat tape guide in its shifted non-operative position. A still fur ther object of the invention is to provide a tape guide which has the guiding member removably connected'to its supportsoth'at guiding members of different widths and styles may be used.

To these and other ends, the invention consistsof certain parts and combinations of parts, all of which will be hereinafter described, the novelfeatu'res being pointed out in the appended claims.

In the drawings:

Fig. 1 is a detailsectional view-of apiece of material showing the manner In whlchthe flat tape is laid whenthe French cord'binding is desired;

' Fig. 2 is a similar view showingthe manner in which the flat tape is bent around the edge of the material toprovide the French cordb nding, p p p Fig. '3 1s a similar View showing the man ner in which a plain binding is secured on a piece of material; f I

i Fig, 4 is a fragmentary front .view, of the sewing machine "with the present improvements mountedthereon, the guide 'for the flat tape, a's'well as the filler for the'pocket in {the feeding plate, being shown in operative positlons; I v

Fig. 5 1s a fragmentary view showing the guide for the flat: tape held in non-operative position;

,ing the filler cementing the tape in Fig. 6 is a plan view of the horn showin position and the guide for the plain binding shifted to non-operative position;

Fig. 7 ing the guide for the flat tive position; I

F 8 is a fragmentaryend view of the:

machine showing the guide for the flat tape in operative position; r M

Fig. 9 is a section on the line 99 through. the feeding plate showing the guide forthcplain binding in position; o.

Fig. 1.0 is a perspective viewofthefeedQ ing plate; i

Fig. 1]. is a detailed perspective view of oneof the guiding members for fiat tape;

Figs. 12 and are the tape guides and their support; andigs. 14- and 15 are two detail perspective views of the support for the tape guide, illustrated in Fi l1- e: At the present time it is customary in shoe making, and some other manufacturing linesto employ two kinds of binding, one known as French cordbinding and the other known as Fplain binding. ,The F rench. cord binding is made by taking a piece-1 on which the binding is to be secured and sewing a tape or binding material 2- by stitches 3 adjacent one edge of the material 1, as shown ig. l, and thereafter bending the binding tape around the edge the material 1, as shown in Fig. 2, and

such position. Ac-

two views of. one of P NT orricafl is another fragmentary view showtape in non-operai cording to the plain binding, the material 1 has the binding tape t overlapping both sides of the material 1, as shown in Fig. 3, being secured in position bystitches 5.. i

Prior to this invention two independent attachments have been employed forlaying the two styles of binding strips on the materials whose edges are tobe bound. This required that either two separate sewing machines be employed-or one attachment was required to be removed in order to place the other attachment n According to this invention, the two attach.- ments are so combinedthat either may be brought into usewith but a few Referring more particularly to the illus trateclembodiment of the invention, 6 indicates the arm of the sewing machine in the end of which the needle bar 7. operates, and 8 indicates the usual horn which projects on the sewing machine.

adjustments.

spring 26 work. The end of this horn '8 has a feed plate 9 formed-with an opening 10 through which the feeding devices (not shown) and the needle move. Movable on'the arm 6 is the usual presser foot 11 which is moved toward and from the feed plate9 through a lever 12 as is common in sewing machines of this'type. These sewing machine'parts are all old and will not be described with greater particularity. p

In order to lay the French cordbindingfe a spool 13 is mounted to turn on a shaft 14 supported on a bracket 15 mounted on the arm 6. From this spool the tape or binding 16 leads downwardly through a guide 17 onthe front of the machine and also to a slotted guide '18 which directs the tape beneath the presser toot-11. This guide 18 is preferably resiliently supported from the arm 6 and to this end a bracket 19 depends from the arm 6 preferably being secured to the armby screws 20. This bracket is provided

withtwo'guide arms

21 and 22 through which a stem 23 on the guide 18 works. This stem also carries an abutment piece 24- and above this abutment pieceand'below the guide arm 21a helical surrounds the stem 23 and normally' tends to hold the guide 18 downwardly.

In order that the guide 18 will be elevated when the presser foot 11is elevated, an arm 27 may be}extendedforwardly from the presser foot and" cooperate with the underside of the screw 25, thereby permitting the guide 18 toyield relatively to the presser foot while, at the sameti'me, when the presser foot is elevated through the operation of the lever '12, the guide 18 will also be elevated. I

A gravity latch 28' orother means is preferably supported by the bracket 19 being pivoted at 29 to suchbracket, its'lower end is bevelled at 30 so that when the presser foot is elevated the abutmentv 24 will en gage the bevelled or lower end of the latch 28, shift'thelatter on its pivot and permit such latch to engage beneath the abutment in order to hold theabutment in elevated position when the presser foot is again lowered. The guide may be'lowered, after the presser foot is lowered, by moving the latch 28 to disengage with the abutment 2 1.

Another featureof this invention is the manner of mounting the guide 18 on its support or stem 23 so that guides 1301? different types and widths may be employed. In thepresent instance,-the guide 18 has its intake deflected upwardly at "11 so that the tape readily enters the tube. Furthermore, this. guide has an internal groove 42 which adapts the guide to a tape with rib now being employed in shoe making. The discharge end of the tube is notched at 4:3 for tlie'passage of the needle, so thatthe tape may be fed all the wayto the needle by the guide. The stem 23 has means for detachably securing the guide thereto. This means comprises a head 44 with a clamping portion 4-5, the head being straddled by a bifurcated "or U shaped portion 46 of another clamping member which has a clamping portion l-7. "The two

clamping portions

15 and 17 engage opposite edges of the guide 13'and a screw as adjust-ably secures I the two clamping portions together while passing through the bifurcated portion 46 and into the head a l.

, \Vhen' the plain binding is used, the guide 18 is held in the raised position, as illustrated in Fig. 5, and the plain binding shaper lies in the position illustrated in Fig. '9. This plain binding shaper. embodies a guide tube 31 having a bevelled end 32 formed with a groove 32 and support'ed'on one end of an arm'33 which is pivoted at 341. to the frame of themachine. This arm 33 is sw ung' over the arm or born 8 and its end is' received in anotch 35 formed in the plate 9 and acting to holdthe'arm against swinging while, at thesame time, permitting the tape 1 to issue tromone end of the tube orguide 31 in proper relation to the needle opening-10 in said plate. The tape passes from any suitable" supply about guide rods 37 and thence through the guide tube" 31 out through the bevelled grooved end ofthe latter. This bevelled end'gives to the tape a U shaped form in cross section and after it passes; from the guide'tube itpasses under the needle 10, which produces the stitch 5.

In Order tIiat'the notch 35 the plate 9 will not interfere with the sewing of the flat tape 2,;an' arm 38 is provided which has a common pivot 34 with the arm 33 and has an end 39 formed similarly to the notch 35 toact as a filler for such notch and provided with a small groove 40 which acts to guide the needle 10'. The upper face of this filler is flush with the top face of the feedplate. y i

From the foregoing it will be seen that attachments have been provided which will make itpossible to. sew on one sewing machine either a plain bindingor what is known as the French cord binding, these results being secured by.attachments shifted the plain binding is to be sewed, receives the guide for the plainbinding, and which, when the French cord bindingis to be sewed, receives a filler which provides a smooth surface over which the material may travel.

The guidet'or thefiat tape which is to'form 1 the'Fren'ch cord binding is so connected to the presser foot that the latter Will shift plate, provision being made whereby the guide for the flat tape may be automatically held away form the feed plate so that the presser foot may be returned to the feed ing plate independently of the guide for the plain tape. a v

WVhat I claim as my invention and desire to secure by Letters Patent is: i

1. The combination with a feed plate and a presser foot, of a guide for feeding a flat tape between the feeding plate and the presser foot, said presser foot being moved independently of the guide toward the feed ing plate, means for connecting the presser foot with the guide to cause the latter to move away from the feeding plate with the presser foot, and means automatically operating when the presser foot is moved upwardly to hold the guide away from the feeding plate so that the. presser footmay move toward the feed plate independently of the guide. g

2. The combination with a feeding plate and a presser foot movable toward and from the feed plate of a guide for feeding a fiat tape between the presser foot and the feed plate, a stem extending upwardly from the guide, a bracket in whichsaid stem operates, a spring surrounding the stem, an abutment on the stem engaged by the spring to move the guide toward the feed plate, an arm on the presser foot cooperating with the abutment to move the stem away from the feed plate after the presser foot is moved away from the feed plate, and a pivoted latch automatically cooperating with the abutment 'ing a filler for filling the viding a flush face over which a flat tape to hold the guideaway from, the feed plate when the presser foot is moved upwardly 3. The combination with a feeding plate and a prcsser foot movable toward and from the feed plate, of a guide for feeding a flat tape between the presser foot and the said plate, spring means normally tending to hold the guide toward the feeding plate, a connection between the presser foot and the i guide for moving the latter away from the.

feeding plate against the action of the spring means, and automatically operating means for, holding the guide away from the feeding plate after the guide is moved against the action of the spring by the presser foot, said means permitting the presser foot to move again toward the feeding; plate independently of the guide.

4. The combination with a feeding plate provided with a needle opening and a pocket adjacent said opening, an arm piv: otally mounted on the machine and carrypocket and prolnay pass, a presser foot for cooperation with the feeding plate, a guide for a flat tape movable toward and from the feed late a connection between the resser foot and such flat tape guide for causing the latter to move away from the feedplate as the presser foot is movedaway from the feed plate, and automatically operating means for holding the flat tape guide away from the feed plate when such guide is moved by the presser foot, permitting the presser foot to move toward the feeding plate independently of the flat tape guide.

GEORGE BOULTQN;