US1183661A - Sewing-machine. - Google Patents

Description

. J. RuMOFFATT.

SEWING MACHINE.

APPLICATION F|ED JUNE], 1912- 1 183 661 Patented May 16, 1916.

4 SHEETSSHEET l- 1. R. MOFFATTf SEWING MACHINE.

APPLICATION FILED JUNE 7;1912.

Patented MaylB, 1916.

4 SHEETSSHEET 2.

o m w m w THE COLUMBIA PLANOGRAPH co., WASHINGTON, D. K

1. R. MOFFATT.

SEWING MACHINE.

APPLICATION FILED JUNE 7. IQIZ- 1,183,661 .1 Patented May16, 1916.

4 SHEETS-SHEET 3.

J. R. MOFFATT.

SEWING MACHINE.

APPLICATION FILED JUNE 1. I9l2.

Patented May16, 1916.

4 SHEETS-SHEET 4 wi/tmaoovm UNITE A NT FI E/E.

JAMES R. MOCEFATT, OF CHICAGO, ILLINOIS, ASSIGNOR TO UNION SPECIAL MACHINE COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

SEWING-MACHINE.

Specification of Letters Patent.

Patented May 16, 1916.

Application filed June 7, 1912. Serial No. 702,243.

To all whom it may concern:

Be it known that I, James R. MOFFATT,

' a citizen of the United States, residing at Chicago, in the county of Cook, State of Illinois, have invented certain new and useful Improvements in Sewing-Machines, of which the following is a description, reference being had to the accompanying drawing and to the figures of reference marked thereon.

Theinvention relates to new and useful improvements in sewing machines, and more particularly to machines of this character for trimming and covering a raw edge of fabric.

An object of the invention is to provide stitching mechanism and a trimming mechanism which is located in advance of the stitching mechanism, together with a binder which is so disposed and constructed as to direct the binding tape to the stitching mechanism after the edge of the fabric has passed the trimming mechanism, whereby the cut edge may be covered by the binding and stitched to the fabric. I

A further object of the invention is to provide a mechanism of the above character with devices for supporting the binding guide, so that said binding guide may be adjusted in various directions relative to the stitching mechanism, so as to properly direct the binding strip to the fabric.

A further object consists in providing a mechanism of the above character, wherein the binding guide is so shaped and positioned as to receive a binding strip from the rear of the machine, fold said strip, invert the folded strip and direct the same about the edges of the fabric to be bound.

A further object of the invention is to provide a mechanism of the above character, wherein the trimming device includes a movable trimming blade supported from the tion,Figu re l is a rear view of a sewing machine having my improvements applied thereto; Fig. 2 is a plan view of the work plate and the parts adjacent thereto, certain of the parts of the machine being in section; Fig. 3 is a perspective view showing on an enlarged scale the work support, the lower trimming member, the binding guide and the means for supporting the same; Fig. A is a perspective view of the binding guide and the bracket to which the same is secured, the parts being detached; Fig. 5 is a view showing the arm to which the bracket for the binding guide is attached, and the supporting plate for the arm, together with the means for attaching the parts together,

.said parts being separated; Fig. 6 is a plan view of the work support, showing the position of the binder and the trimmer relative to the stitching point, also showing in dotted lines the fabric being trimmed and the binding strip; and Fig. 7 is a view in side elevation and partly in section, showing the relation of the trimming mechanism, the deflector for the trimmed-off strip, the presser foot, the needle and the binding guide. Fig. 8 is a sectional view through the binding guide.

The machine as herein shown, consists of a work support 1 on which is mounted a standard 2, carrying an overhanging arm 3. The needle bar 4: reciprocates'in the forward end of the overhanging arm, and carries a needle 5. The material being stitched passes over the work support 6, and is fed to the needle through the usual feeding mechanism, which includes a feed dog 7. The material is held on the work support by a presser foot 8, which is carried by the presser bar 9, mounted in the overhanging arm.

The present machine is especially designed for trimming the raw edge of a fabric and the covering of the same with a binding bearings 13 and let, carried by the overhanging arm. The upper blade is actuated from a lever 15, which in turn is oscillated by an eccentric on the main shaft beneath the work support.

' The trimmer blades are located well in advance of the stitching mechanism, so as to give room for the leading end of a bind ing strip between the point of trimming and the point of stitching.

Referring more particularly to Figs. 2 and 6, it will be noted that the work support 6 is provided with a throat plate 16 which is formed with feed slots 17 and a needle throat 18, which indicates the stitching point. The trimming members 10 and 11 are well in advance of the needle throat 18. A binder 19, which is of the usual English type, is disposed so that its delivery end is between the trimming members 10 and 11 and the needle throat 18, so that the binding strip passing through the binder is mverted and delivered to the edge of the material, so as to extend on to the upper and lower faces of the material, and the needle passes through the free edges of the bindmg strip, securing the same to the material.

'The binder 19 consists of a body portion having the side edges 20 and 21 so shaped as to fold the binding strip about the fingers 22 and 23. The delivery end of the binder is cut at an angle, so that said strip may be inverted and led from the binder in a direction substantially at right angles'to the lonv gitudinal axis of'the binder. The strip as it passes into the binder is led in rear of the shank 24: carrying the fingers 22 and 23.

The binder, as clearlv shown in the drawing, is curved at its delivery end so that the strip may be led into the binder in a direction from the rear of the machine, and as it travels through the binder it will be carried to the trimmed edge of the fabric in a direction at right angles thereto. This binder is supported by a bracket 25, which is adjustably secured to a bar 26, pivoted to a shank 27. The shank 27 is mounted in a lug 28, attached to the work support, and said shank is held therein by a screw 29. The bar 26 is pivotally attached to the shank 27 by a screw 30. The shank 27 is provided with a spring-pressed pin 31, see Fig. 5, which is adapted to engage a recess in the under face of the bar 26, and hold said bar 26 in the normal position shown in Fig. 3. The bracket 25 is formed with slots 32,

through'which pass screws 33. These slots vertical direction, and serve as a means whereby the binder may be adjusted vertically, (that is, in a planecuttingthe line of feed at right angles).'

From the above description, it' will be apparent that I have provided means for supporting the binder sothat it maybe adjusted vertically to position'the same relative to the fabric being bound, and also adreadily turned about the screw 30 as a pivot,

so as to move the binder from its" position adjacent the stitching mechanism. This en'- ablcs the positioning of the binder so that it may be readily threaded with the binding strip, and also aids in moving the binder away from the looper or under thread-carrying elements, so that they may be easily accessible. r 7

As above noted, the binding strip is led from the rear of the machine through the binder. The shaft 12 supporting the upper trimming member is carried the overhanging arm and is, therefore, raised a sufiicient distance above the Iwork support so that the binding strip may be readily led to the binder from the rear of the machine, without in any way being interfered with by the parts of the trimming mechanism. As

a further means for guiding the binding strip to the binder, I have provided a guide 35, which directs the strip'to the binder. and furtherprotects said strip from the moving parts of the feeding mechanisms and the trimmer-actuating mechanism.

In order to deflect the trimmed-0E strip away from the edge being bound, and also away from the stitching elements, I have provided the presser foot 8 with a strip defiector 36. This strip deflector 36 is located directly in rear of the trimming point, and projects beneath the work support.

A cover plate 37 is pivotally attached'at 38 to the bed plate, and projects upwardly in front of the stitchingmechanism. This cover plate'at its upper end is curved as at 39, so as to extend in rear of the deflector 36 on the presser foot. The strip trimmed ofi' by the trimming mechanism will be carried to the deflector and turned down against the cover plate, and this cover plate will serve as a further means for guiding the the front of the machine, away from the op- .erating parts of the machine. The machine also is provided with a binder which is so disposed as to receive the binding strip from the rear of the machine and direct the same to the edges of the fabric to be covered, after the fabric has been operated upon by the trimming mechanism. This binder may be readily adjusted to various positions relative to the stitching mechanism and may also be readily swung from operative position. When the presser foot is raised, the cover plate 37 may be readily swung about its pivotal support 38, so as to give access to the under stitching elements.

It is obvious that minor changes in the details of construction and the arrangement of parts may be made, without departing from the spirit of the invention as set forth in the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

1. A sewing machine including in combi nation stitch forming mechanism, feeding mechanism, a trimming mechanism located in advance of the stitching mechanism, a binder for directing, folding and inverting a binding strip, said binder having its delivery end disposed between the stitching mechanism and the trimming mechanism, and means for supporting said binder whereby the same may be adjusted bodily in .the direction of the feed and in a direction at right angles to the feed.

2. A sewlng machine including in combination stitch forming mechanism, feeding mechanism, a trimming mechanism located in advance of the stitching mechanism, a binder for directing, folding and inverting a binding strip, said binder having its delivery end disposed between the stitching mechanism and the trimming mechanism, and means for supporting said binder whereby the same may be adjusted bodily in the direction of the feed and in a direction at right angles to the feed, said supporting means including devices whereby the binder may be'swung away from the line of feed to give access to the parts of the stitching mechanism beneath the work support.

3. A sewing machine including in combination a work support, stitching mechanism, feeding mechanism, a lug carried by the work support in rear of the stitching mechanism, a binder for directing, folding and inverting a binding strip, said binder the stitching mechanism and the trimming mechanism, a shank carried by said lug,

and means for attaching said binder to said shank whereby said binder may be Etdjllt6d in a vertical direction, at right angles to the line of feed, and also bodily horizontally in a direction parallel to the line of feed.

4. A sewing machine including in combination a work support, stitching mechanism, feeding mechanism, a lug carried by the work support in rear of the stitching mechanism, a binder for directing, folding and inverting a binding strip, said binder having its delivery end disposed between the stitching mechanism and the trimming mechanism, a shank carried by said lug, and means for attaching said binder to said shank whereby said binder may be adjusted in a vertical direction, at right angles to the line of feed, and also bodily horizontally in a direction parallel to the line of feed, the receiving end of said folder being bent rearwardly so as to receive the binding strip from the rear of the machine.

5. The combination of a work support, a lug carried thereby, a shank mounted on said lug and extending in a direction substantially parallel with the line of feed, an arm supported by the shank and pivoted thereto, a bracket carried by the arm, means for adjusting the bracket lengthwise of the arm, a binder mounted on said bracket and having its delivery end disposed adjacent the needle slot in the work support, said binder being adapted to direct, fold and in vert a binding strip.

6. The combination of a work support, a lug carried thereby, a shank mounted on said lug and extending in a direction substantially parallel with the line of feed, an arm supported by the shank and pivoted thereto, a bracket carried by the arm, means 7 for adjusting the bracket lengthwise of the arm, a binder mounted on said bracket and having its delivery end disposed adjacent the needle slot in the work support, said binder being adapted to direct, fold and invert a binding strip, said binder being vertically adjustable on said bracket.

In testimony whereof, I aflix my signature, in the presence of two witnesses.

JAMES R. MOFFATT.

Witnesses:

C. MGNEIL, A. B. CLo'rHIER.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0."

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