US554373A - Augusta olson and bertena - Google Patents

Description

(No Model.)

0. B. OLSON, Deod.

' A. & B. OLSON, Executors. ATTACHMENT TOR SEWING MACHINES.

No. 554,373. ted Feb. 11,1896.

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74%7726Jd2 0. ,Zizwvfir WM OZz'mw B 0Z$07@ d zi mmaag r 27 W NITED TATES AND BERTENA OLSON EXECUTORS OF SAID OLIVER B. OLSON, DECEASED.

ATTACHMENT FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 554,373, dated February 11, 1896. Application filed September 28,1891. Serial No. 406,591. on model.)

To otZZ whom it may concern.-

Be it known that I, OLIVER B. OLSON, of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Attachments for Sewing- Machines; and I do hereby declare that the following is a full, clear, and exact descrip tion thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to improvements in attachments for sewing-machines of that class usually employed for sewing long lengths of woven material-such as carpets, burlaps, duck, upholstering material, and other text ile fabrics.

In sewing such heavy material as ingrain carpet in long lengths, or where there are patterns to be matched, it is a fact that the feeder, which projects upwardly through the table of the machine and engages the under surface of the lower strip of carpet or material, usually pushes' the said under strip of material a little faster than the upper strip of carpet or material being fed to the machine. This is due to the fact that the presser-foot rests upon the surface of the topmost carpet or fabric, and thus tends to retard its forward motion, because of the resistance due to the downward pressure of said foot. The result of this uneven feed is that the lower piece of carpet or material will beloose and the upper piece tight, and so the sewed part will be wrinkled and very uneven. Thus it is where two long widths of carpet or other material are inserted under the presser-foot at the same time with their forward ends or margins registering with each other that after passing through the machine the rear end or margin of one width Will overlap the rear end ormargin of the other width by several inches. particularly noticed in sewing ingrain carpets and in other fabrics where there are designs to be matched, the uneven feeding throwing the pattern out of match.

My invention consists in an attachment to a sewing-machine so arranged as to be movable vertically with or independently of the presser-foot, and which is provided with grip ping devices in the form of curved pins mount- This has been ed upon a rotatable head and so positioned as to successively penetrate both the upper and lower widths of the carpet or other fabric and to hold them together at a time when 5 5 they are beingfed to and being sewed together by the needle and thread of the machine.

By the novel arrangement of the features of this invention, hereinafter to be pointed out, it will be observed that both widths of the fabric are pierced by the curved pins before the sewing needle can act. The two widths are thus held and secured together while being fed through the machine between the feed and the presser-foot, and are so held while being acted upon by the needle and thread. By thus locking the upper and lower widths of carpet or other fabric together before they enter beneath the presser-foot, holding them together while under the presserfoot and while the needle is passing the thread through them, I am enabled to overcome the above-m entioned difficulties and all other objections heretofore existing insewing-machines of the class described, and am enabled .7 5 to sew smoothly and to match designs while sewing.

To these ends my invention consists in the novel features of construction and arrange ment herein illustrated and described, and more particularly pointed out in the appended claims.

. In the accompanying drawings, illustrating my invention, Figure 1 is a side elevation of a device embodying my invention and those parts of the machine necessary to illustrate it, the table of the machine and the throatp'late being in vertical section. Fig. 2 is a plan view of the presser-foot with my attachment secured thereto. Fig. 3 is a transverse 9o sectional View on line 3. 3 of Fig. 2, but showing the attachment and presser-foot in front elevation.

In said drawings, let A represent the table of an ordinary sewing-machine provided ata 5 with an aperture or elongated. slot through which the feeders B project and by which the material is carried along the face of the table to the needle. I have. not shown any mechanism for operating the feeders B, as any loo well-known feeding device may be employed.

A represents a throat-plate arranged to slide in a suitable slot in the top of the table A transversely to the slot at in said table and which is provided with suitable openings or slots a a through which the upper margins of the feeders B project.

0 denotes a depending head at the forward end of a sewing-machine bracket-arm and pro vided with a needle-bar C and a presser-foot bar each adapted to move longitudinally within said head Gin the usual manner.

0 is the needle, secured in the needle-bar O, and c is the presser-foot, suitably secured to the end of the presser-foot bar 0 by means of the set-screw c or by any other convenient means. The presser-foot c is provided with the usual slot 0 through which the needle 0 passes.

The parts described are common to all sewing-machines and do not vary in their construction or mode of operation so far as my present invention is concerned.

D is a disk or head, rotatably secured at (Z to a projecting supporting arm or bracket D, which latter is in turn secured to or is integral with the upper end of the presser-foot c, by which construction it will be obvious that the head D will be moved vertically whenever the presser-foot is moved. The diameter of the head D and the point at which it is suspended or held from the presser-foot are such that the lower margin of the head D will be in the same horizontal plane with the lower and bearing surface of the presser-foot c. As will be seen more clearlyin Fig. 3, the head D is located at one side of the presserfoot when looking directly at the needle.

d cl are pins projecting from the periphery of the rotating head D, said pins being pointed at their ends and slightly curved forward.

The slot a in the throat-plate and the adjacent portion of the slot a in the table are widened, as will be more clearly seen in Fig. 3, in order to register with or be immediately under the rotating head D and thus provide a space through the throat-plate and table into which the several pins d may pass when the presser-foot and rotating head are lowered to such an extent as to require the points of the pins to pass below the upper surface of the throat-plate.

E is the upper and E the lower piece of any suitable material,such as carpeting or the like, through which itis desired to sew, the same being located upon the table over the throatplate and the upper portion of the feeder B and beneath the presser-foot c and rotating head D. When the presser-foot and the head are lowered so as to exert a pressure upon and hold the two pieces of carpeting E E in position to be sewed by the needle, it will be observed, by reference to Figs. 1 and 3, that at least four of the needles or pins d are in engagement with both pieces of carpeting E and E. It will be further observed by ref- .erence to Fig. 1 that two of these needles or pins 61 are forward of and two are in the rear of the vertical plane in which the needle 0 operates, and that the lowermost needles or' pins d may pass entirely through the fabrics E E and project into the slot (6*.

The result of the construction shown makes the operation as follows: The presser-foot being up, the carpet or other fabric E E is fed into the sewing-machine in the usual manner with the edges 6 6 together. The presser will then be lowered to rest directly upon the upper surface of the upper fabric, E, at which time the several pins (1 of the head D will pass through and will fully engage both of the fabrics E E. It is obvious that when a plurality of pins d d are thus inserted through both fabrics said fabrics are held together and are fed simultaneously through the machine. The needle-bar and needle are then lowered and the operation of sewing the fabrics together is carried on in the usual manner with this exception, that every time the feeder 13 moves the fabric E E through the machine (i. 6., rearward) said feeder also indirectly, by reason of the engagement of the pins d with said fabrics E E, rotates the head D and thereby causes the next disengaged pins d d to engage the fabricsE E and thus continue to pin the upper and lower widths together. By this operation it will be obvious that the upper and lower widths are prevented from movement, the one upon the other in any direction, while passing through the machine and during the operation of sewing.

The pins d are made of various lengths and sizes, according to the different conditions under which the head D is designed to operate, coarser and larger teeth being usually re quired for the coarser and heavier fabrics, such as duck and carpeting. By reason, however, of the widened slot a in the throat-plate and the widening of the adjacent portion of the slot ain the table, I am enabled to use the same holding device D upon materials of various thicknesses without being put to the necessity of having a different head or head with different lengths of pins for the different thicknesses desired to be sewed together, and obviates the necessity of any special adjusting device for the head D.

I prefer to bend the pointsv of the pins d forward, as shown in Fig. 1, as I have found by practice that a curved pin will the more readily engage with and become detached from the fabric, but at the same time I do not desire to be limited thereto, as a straight pin or a pin of a different curve from that illustrated may be used with some degree of success. I also prefer to suspend the rotating head D from thepresser-foot, as in some forms of machines this will be the most convenient mode of attachment, but I do not desire to be limited thereto, inasmuch as any connection which will holdthe head D in the position sewed upon the machine will answer the pur- IOC 1 shown with respect to the needle 0 and which 'will permit of a vertical adjustment of the head D with respect to the material to be pose; nor is it essential to locate the rotating vertically-movable head above the table,

as shown, it having only been so illustrated as a matter of convenience in the drawings.

Other structural changes to adapt my improved attachment to the various makes of sewing-machines may be made without departing from the spirit of my invention, and in dotted lines in Fig. 2 I have suggested one modification of such a change, where the presser-foot may be dispensed with and the head D be thickened or widened to act in lieu thereof.

WVhat I claim as my invention is 1. The combination with the fabric-supporting table and feed mechanism of a sewingmachine, of means for' holding the fabrics from movement upon each other while being sewed, comprising a rotatable head provided with a plurality of peripheral curved pins adapted to successively penetrate and pin the fabrics together as they are moved along by the feed mechanism, substantially as de scribed.

2. The combination with the fabric-supporting table and feed mechanism of a sewingmachine, of a rotatable head provided with a plurality of peripheral curved pins adapted to successively penetrate and pin the fabrics together as they are moved along by the feed mechanism, and means whereby said head is adjustable toward and from the fabric, substantially as described.

3. The combination with the fabric-support ing table of a sewing-machine, of a feed mechanism, and a rotatable head mounted above the table and provided with a plurality of poripheral curved pins adapted to successively penetrate the fabrics from above and pin them together as they are moved along by the feed mechanism, substantially as described.

4. The combination with the fabric-supporting table, feed mechanism and presser-foot of a sewing-machine, of arotatable head secured to and movable with said presser-foot, said head being provided with a plurality of peripheral curved pins adapted to successively penetrate and pin together the fabrics as they are moved along by the feed mechanism, substantially as described.

5. The combination with the fabric-supporting table and presser-foot of a sewing-machine, of a feed mechanism adapted to engage the under surface of the fabric, and a vertically-movable rotatable head secured above the table adjacent to the presser-foot and provided with a plurality of peripheral curved pins adapted to successively penetrate and pin together the fabrics as they are moved along by the feed mechanism, substantially as described.

6. The combination with a fabric-supporting table and feed mechanism of a sewingmachine, of a rotatable head provided with a plurality of curved peripheral pins adapted to successively penetrate and pin the fabrics together as they are moved along by the feed mechanism, said pins being curved in a direction opposite that in which the head rotates, substantially as described.

7. The combination with the presser-foot of a sewing-machine and a rotatable head secured thereto, said head being provided with a plurality of curved peripheral pins, of a table for supporting the fabric, a feeding device projecting through the table to engage the fabric when the presser-foot is lowered into operative position and a slot located in the top of said table adjacent to and beneath said rotatable head, substantially as specified.

8. In a sewing-machine, the combination of a table provided with a throat opening, a throat-plate covering the throat-opening and provided with a feed-dog slot, feed mechanism projecting through said slot, a machinehead arranged above the table, a needle-bar and presser-foot operatively mounted on said head, a supporting-bar secured to the presserfoot, a rotatable head secured to said bar pro- Vided with a plurality of curved peripheral pins, and a second slot in the table-top within which said curved pins project, substantially as and for the purposes specified.

In testimony that I claim the foregoing as my invention I affix my signature in presence of two witnesses.

' OLIVER B. OLSON.

Witnesses:

TAYLOR E. BROWN, GEORGEW. HIGGINS, Jr.

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