US498925A - Embroidering machine - Google Patents

Description

(No Model.) 3'Sheets -Sh61t 1.

. G. BAUM.

EMBROIDERING MACHINE.

Patented June 6,1893;.

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G. BAUM. EMBROIDERING MACHINE.

Patented June 6, 1893.

Inventor:

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G. BAUM. EMBROIDERING MACHINE.

. i I [if f g UNITED STATES PATENT OFFICE.

GEORG BAUM, OF ARBON, Sl/VITZERLAND.

EMBROIDERING-MAGHINE.

SPECIFICATION forming part of Letters Patent No. 498,925, dated June 6, 1893.

Application filed January 14,1893. Serial No. 45 8,321. (No model.)

' To all whom, it may concern.

Be it known that I, GEORG BAUM, a citizen of the Republic of Switzerland, residing at Arbon, Switzerland, have invented certain new and useful Improvements in Embroidering-Machines, of which the following is a specification.

The Heilmann embroidering machines now in use are generally constructed with two rows of needle-clamps at each side of the fabric-holder and only a small number are constructed with three or four rows; that is to say, there are two, three or four rows of needle-clamps arranged above each other at each side of the fabric-holder. The reason that machines with two rows of needles are generally used is that the machines having three or more rows are too high and heavy to permit of easily operating the same. As the stroke of the carriage, that is, the distance that the thread is drawn out from the fabric, is about thirty-nine inches, a thread of corresponding length is usually used. When the carriage is movedfrom the frame in which the fabric is held the threads'are drawn taut, but during the return stroke of the carriage the thread is folded one-half its length and the folded portion drops to form a loop, which when the thread has its full length is about nineteen inches long and decreases as the thread is consumed. Itis therefore necessary that the rows of needle-holders should be separated at least twenty inches, and so on. It is thus evident that embroidering machines with. three and four rows of needle-clamps must be constructed so high that it is diflicult to operate them conveniently, and for that reason the more convenient and rapidly operating two-row machines are used.

The object of my invention is to build a machine that is provided with more than two rows of needle-clamps at each side of the fabric-holder and yet does not attain an undue height, and I accomplish this by forming in-v termediary supports for the threads which prevent the forming of the long loops. At the same time the patterns produced are arranged closely to each other, and in addition to the two needle clamp rows used heretofore two or more needle clamp rows can be arranged.

In the accompanying drawings, Figure 1 is a front-elevation of part of my improved embroiderin g machine. Fig. 2 is avertical transverse section through the same. Fig. 3 is a detail front view of parts of the supports for the machine. Figs. 4 to 8 are diagrammatical views showing the threads supported in different positions of the carriage in relation to the fabric-holder, and Figs. 9 to 12 are diagrammatical views representing the various positions of the supports.

Similar letters of reference indicate corresponding parts.

The arms a connected with the two carriages A A carry the four needle clamp supporting bars I) b b 12 on which the clamps c are arranged in the usual manner. At each end of each clamp supporting bar I) b b b, a pusher plate at is arranged which can act on the sliding hook bars 6 e e e arranged at the opposite sides of the machine to slide on rods ff. For each two needle clamp-supporting bars one group of hook-bars c e e e is arranged at each side of the machine, and the hookbars at one side of the machine are connected with the corresponding hook-bars at the other side of the machine by cords or wires g 9 g g g g g g,of which cords or wires the upper ones g g g g serve as supports for the embroidering threads h, whereas all the lower cords or wires 9 of which several can be arranged above each other or interwoven in the form of a net, serve for clamping or holding the loops formed bythe embroidering threads. The hook-bars of each group are connected pusher plates d by chainsnwhich are omitted in the right-hand part of Fig. 2, for the purposes of avoiding confusion. When the carriage is drawn from the fabric-holding frame 0 the hook-bars and the. cords or wires connecting them, are arranged uniformly between the carriage and the fabric-holding frame, and thereby the embroidering threads are supported uniformly by the cords or wires 9 g g 9 When the carriage moves toward the fabricholding frame the embroidering threads are still supported by the cords or. wires g g g g and cannot form loops of half their length but only loops equal to half the distance between the needle end and the first supporting cord or wire g, between which the embroidering thread is folded to form a loop as shown in with each other and with the corresponding I Fig. 4. As the carriage continues to move toward the fabric 3 the pusher plates (1 strike the first hook-bars e and move the same with their supporting cord or wire g toward the fabric .9, whereby the embroidery threads supported by the wires g g are folded, as shown in Fig. 5; when the pusher plates 02 strike the second hook-bars e, that part ofthe embroidering thread between the supporting wires 9 g is folded, as shown in Fig. 6. Then in the same manner that part of the embroidering thread between the supporting wires g g is folded, as shown in Fig. 7, and finally that part of the embroidering thread between the supporting wire or cord 9 and the fabric sis folded, as shown in Fig. 8. This last loop rests upon the board or support is arranged adjacent to the fabric. The embroidering threads h are now folded on aserpentine line and are not only supported by the upper rods g g g g but are also clamped between the wires or cords g arranged directly below the wires or cords g g g 9 so as to prevent entangling of the several embroidering threads. When the carriage is moved from the fabric, the reverse operation takes place, as is illustrated by Figs. 9 to 12. As the carriage is moved toward the fabric, the chains 1' form loops between the several hook-bars e, and when the carriage moves from the fabric, that part of the chain between the pusher-plate d and the first hook-frames e is first drawn taut, as shown in Fig. 9; then the first hookbars e are drawn along with the carriage, then the chain between the hook-bars e e is drawn taut, as shown in Fig.16, then the second hook-frames e are drawn along with the carriage, then that part of the chain between the hook-bars e e is drawn taut, as shown in Fig. 11, and the hook-bars e are drawn along with the carriage, and finally those parts of the chain 1' between the hook-bars e e are drawn taut, as shown in Fig. 12, until finally all the parts are again in the position shown in Fig. 1.

It is evident that when the embroidering thread is Worked into the fabric, the stroke of the carriage decreases and only as many hook-bars e e e e and their supporting wires 9" g g g are moved from each other as is necessary to support the threads. The rods f that support the hook-bars e 6 6 are supported by brackets f from the frame of the machine, and bearers f on the tracks m for the carriage, so as not to interfere with the movement of the latter. The fabric frame 0 is arranged to hold a piece of fabric for each row of needlesin this case four pieces, each piece of fabric being held on two fabric-holding rolls p, so as to permit of adjusting the same in the usual manner.

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

1. In an embroidering machine, the combination, with a fabric-holder, and a carriage reciprocating toward and from said fabricholder, a series of movable supports for the loose embroidering threads between the carriage and the fabric-support, substantially as set forth.

2. In an embroidering machine, the combination, with a carriage and embroidery support, of a series of sliding bars between said carriage and fabric-support, and flexible devices connecting said sliding bars, substantially as set forth.

3. In an embroidering machine, the combination, with a carriage and fabric-holder, of a series of sliding bars between the carriage and fabric-holder, which bars have top-pieces extending transversely under the threads and supporting the same between the carriage and fabric-holder, and a series of threadholding pieces on said bars below the supporting-pieces, substantially as set forth.

4. In an embroidering-machine, the combination, with a carriage and fabric-holder, of a series of movable frames transversely to the embroidery thread, between the same car riage and fabric-holder, which frame supports the embroidery threads and pusher plates on the carriage for actingon said sliding frames, substantially as set forth.

5. In an embroidering-machine, the combination, with a fabric-holder and a carriage, of a series of track-rods at right-angles to the fabric-holder, a series of hook-bars sliding on said supporting rods, wires connecting said hook-bars, which wires run transversely to the embroidery threads, and below the same, and chains connecting the several hook-bars, substantially as set forth.

In testimony whereof I hereunto sign my name, in the presence of two subscribing witnesses, this 8th day of December, 1892.

GEORG BAUM'.

Witnesses:

K. KOLBART, EMIL BLUM.

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