US1055068A - Jacquard-machine. - Google Patents

Description

' T. M. MORROW.

JAGQUARD MACHINE.

APPLICATION FILED JUNE 4, 1910.

1,055,068. Patented Mar. 4, 1913.

UNITED STATES, PATENT oFFIoE.

THOMAS M. MORROW, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THOMAS HALTONS SONS, OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENN- SYLVANIA.

JACQUARD-MACHINE.

Patented Mar. 4,1913.

Application filed June 4, 1910. Serial No. 565,123. 7

To all cull-omit may concern:

Be it known that I, THOMAS M. Monnow, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Jacquard-Machines, of which the following is a specification. I

One object of myinvention is to so con-- ends of said lifters with the slotted frame whereby they are guided in their vertical movements and supported when in a lowered position.

These objects I attain in [the manner hereinafter set forth, reference being had to the accompanying drawing, in which Figure 1 is a longitudinal sectional view of sufficient of a jacquard machine to illustrate my invention; Fig.2 is a transverse section illustrating part of the top row of needles and one of the devices for preventing vibration of the-lifters,and Fig. 3 is an enlarged sectional plan view of part of the jacquard apparatus, the section being taken on the line a-a, Fig.1.

In the drawing, a number of the needles of an ordinary double lift, double cylinder jacquard machine are represented at 1 and 1, each of these needles having an'eye for,

the reception of one of the lifters 2 or 2 of the machine, whereby, when either of the needles is moved by contact with its respective jacquard card, the lifter controlled thereby will be moved so as to carry its hooked upper end out of position for engagement with the lowered griff bars 3 or 3*, the lifters thus operated consequently remaining in the lowered position when the griff bars rise and the lifters not thus operated, remaining in position to be engaged by the grifl' bars when they rise. The lifters are guided in their vertical movements by a slotted frame 4, and each of them is set of needles and engaging one set looped at its lower end, each loop terminating at its upper end in a hook 5 which rests upon a transverse bar 6 of the slotted frame 4, when the lifter is lowered. The needles 1 are moved in one direction by means of pattern cards at, and the needles 1 are moved in the opposite direction by means of pattern cards '00, the needlesof each set being returned to normal position on the withdrawal of the card by the action of suitable springs y. I

In an ordinary jacquard machine the vi bration of the lifter on the backward movement of the needles is unrestricted and it sometimes happens that such vibration will carry the upper end of the lifter into the path of a descending griff bar and the lifter will be struck thereby and bent to such an extent as to render it inoperative or even to cause it to interfere with the proper operation of adjacent lifters. In order to overcome this objection, I place strips or plates 7 between successive rows of lifters, said strips being of any avail-' able material, preferably sheet metal, and serving to restrict the vibration of the upper ends of the lifters in respect to one another and thereby overcome the above I noted objection. The strips 7 can be conveniently supported by resting them upon the top row of needles 1, as shown in Figs.

1 and 2, lateral displacement of the strips being prevented by bending their ends, as shown, for instance, at 9 in Fig. 2, so as to cause them to engage with the end needles of the row.

In order to prevent the looped lower ends of the lifters from twisting 1n the slots of the frame 4, so as to carry their top hooks out of position for engagement with the grifl bars, or their lower hooks 5 out of position for engagement with the bars 6 of said frame 4, I provide each of the hooks 5 with a tongue 10, which projects between the looped lower ends of adjoining lifters, as shown in Figs. 1 and 3, and thereby prevents any twisting action of either lifter during the rising and falling movements of the same.

I claim: 1. The combination, in a double-lift jacquardmachine, of the upper and lower sets of needles, two sets of grifi bars and two sets of lifters, one set controlled by one of gri'fi 1 bars and the other set controlled by the other set of needles and engaging the other set of griif bars, and transverse strips located between the rows of lifters and serving, by contact therewith, to restrict the vibration of the lowered lifters on the retraction of the needles controlling the same.

2. The combination of the upper and lower sets of needles, the lifters, and the two grifl bars of a double lift jacquard machine, with strips interposed between the rows of lifters, said strips resting upon the top row of the upper set of needles and serving to restrict the vibration of the 10-wered lifters on the retract-ion of the needles.

3. The combination of the upper and lower sets of needles, the lifters, and the two grifi bars of a double lift jacquard machine, with strips located between the rows of lifters and resting upon the top row of the upper set of needles, said strips being hooked at their opposite ends to engage with the end needles of the row and thereby provide for the lateral retention of the strips.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

THOMAS M. MORROW.

Witnesses:

JAMES VVOODHEAD, PAULINE ELLIS.

Copies of this patent may be obtained for five cents each, by addressing the Commivrioner of Patents, Washington, D. '0.

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