US531390A - Jacquard apparatus for looms - Google Patents

Description

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O. W. SGHAUM. JAGQUARD APPARATUS PoR LooMs.

No. 531,390. Patented Deo. 25, 1894.-

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Of. W.l SGHAUM. JAGQUARD APPARATUS FOR L ooMs.

UNITED. S T'Afr13sLv PATENTl Ormes.

OTTO W. SOHAUM, OF PHILADELPHIA, PENNSYLVANIA.

, UACQUVARD APVFnARA-ru'sy Fon Looms.

SPECIFICATION forming part of Letters Patent No. 531,390, dated December 25, 1894. Application filed May I3, 1893. Serial No. 474,123. (No model.)

To @ZZ whom it may concern:

Be it known that I, OTTO W. ScHAUM,-a citizen of the United States, residing Vat Phila- ,c so

vJanuary 4, 1881.

delphia, inthe county of Philadelphia and State of Pennsylvania, have invented a certain new and useful Improvement in Jacquard Apparatus for Looms, of which the following is a true and exact description, reference being had to the accompanying drawings, which form a partof this specification. f

Myinvention relates to Jacquard machines and is especially adapted to be used in connection with a style of jacquard known as a rise and fall machine and of a general character similar `to that shown in the patent to Stafford n Barker, No. 236,375, and dated One of the disadvantages attendant on the use of this machine has been, that'the harness cords being constantly in motion both ways rub continuously on the holes in the compart board--through which they pass, and rapidly .wear-out, not lasting more than half the time that tho cords in single lift do. To obviate this difficulty I arrange my compart board so that it may be moved in unison with the harness cords or in union with at leastthe major part of the cor s.

My invention is best understood as de-l scribed in connection with the accompanying drawings illustrating a Jacquard machine embodying my invention, and in which- Figure 1 'is a view of a Jacquard machine and part of a loom showing a connection from the driving shaft which communicates motion to the jacquard to the compart board whereby the board moves inunison with a hook plate. Fig. 2 is a similar view showing a connection -between the upper hook plate or the griff plate and the compart board; and Fig. 3 is a similar View showing the preferred form where connection is arranged between the lower hook plate and the griff board.

A, is a beam or cross bar for supporting the pattern mechanism.

J represents a cylinder and K a series of cards operating in a lwell known manner to cause separate hooks to be raised in accordance with the pattern required.

S is a driving shaft having cranks as S S2 which serve to operate levers B B2 by means of rods or links r r2. The levers B B2 which are pivotedat c c2 respectively serve to raise and lower the upper and lower hook` plates P P2 which act on the hooks put in their path by the action of the pattern cards K and through the hooks operate the harness cords H which pass through holes as indicated at h in the com part board C. These harness cords in their rapid movement through the holes h rub and wear particularly in rise and fall machines where one part of the cords fall while the other part rises. In this sort of machine it is usual to permit the heaviest work or the greatest number of cords/to be constantly moved in one direction, and for purposes of convenience by dropping instead of raising the threads by means ofthe harness. In order to prevent this excessive wear I make the compart board C vertically movable preferably guiding it in any suitable guides as Gr placed on the loom frame and raise and lower Y as desired byx attaching carriers C or- C2 to pivots b or b2 on said hook plates as shown in Figs3 and 2, or if preferred the compart board may be raised and lowered from any suitable part of the machine as by eccentrics E placed on theshaft S.

Inasmuch as it is usual, as has been stated, to do the heaviest work by dropping the threads it would usually be more advantageous to connect the compart board to the lower hook plate so that it will move in unison with the cordsy permitted to drop by the downward movement of said plate. t

I am aware that movable compart boards with a series of slotted holes formed `therein have been employed to aid in selecting certain of the harness cords and raise the warp IOO I claim as new, and desire to secure by Letters Patent, is-

1. The combination with the hooks of a rise and fall Jacquard machine and the harness cords secured thereto, of upper and lower hook plates adapted to operate the hooks, a`

to pass and whereby they are guided, and means for moving said compart board in unison with the lower hook plate substantially as and for the purpose specified.

3. The combination with the hooks of a Jacquard machine and the harness cords operated thereby, of upper and lower hook plates adapted to operate the hooks, a compart board through which the harness cords are adapted to pass freely, a; connection between the lower book plate and the compart board whereby they are both moved together, and guides for the compari; board substantially as specified.

OTTO W. SCI-IAUM.

Witnesses:

D. STEWART, EDWARD F. AYRES.

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