US271033A - Shedding mechanism for looms - Google Patents

Description

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H. BNZLI.

r SHEDDING MEGHANISM FOR LOOMS. No. 271,033. Patented @11.23, M383.v

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SHBDDING MEGHANISM FOR LOOMS. No. 271,033. Patente Ja,11.28,l883.

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SHEDDING MECHANIVSIVI'FOR LOOlVlS.v

SPECIFICATION forming part of Letters Patent No. 271,033, dated January 23, 1883.

- l Application filed May 8,1882. `(No modell) To all whom it may concern:

Beit known that l, HENRI BNZLI, a citizen of the United States, residing at Paterson, New Jersey, have invented new and useful Improvements in Shedding Mechanisms for Looms, of which the following is a specification.

This invention, which relates to the shedding mechanism of looms, consists in certain novel combinations of parts, that will be hereinafter more fully described, and specifically set forth in the claims.

ln the annexed drawings, Figure l is a rear View of a portion of my improved mechanism; Fig. 2, a side view of the same. Fig. 3 is an elevation of one of the heddle-frames, showing the manner of suspending the saine; and Fig. et is a sectional plan view on the dotted line shown in Fig. 3.

In the said drawingsA designates part of theframe-work of an ordinary loom,upon which is mounted the frame B of my improved shedding mechanism. A lever, c, fulcrumed at c to the frame B, operates the shedding` mechanism, said lever being vibratcd upon its fulcrum by a link, b, which receives motion from a crank or other means. This lever c performs three distinct functions, namely: first, effect ingthe movement of the heddles, which are to be raised; second, effecting the movement of the heddles which are to be lowered, and, third, effecting the movement of the pattern or jacquard cylinder.

The heddle-frames H, Fig. 3,are suspended by cords d from the strips tl and hooks cl2. lhese `hooks d2 pass through eyes e ofthe needles a, and their upper ends are fitted to cngage with the levers j when the needles are permitted to enter holes in thejacquard-cylinder. The leversj'are pivoted at g to brackets x of the frame B, and their ends h are joined or secured to thearms of a forked link, l,fthe lower end of which is slotted and connected by a pin or otherwise to the lever a, from which it receives an up-and-down motion as the lever is vibrated by the link b.

J is a pattern or jacquard cylinder of the ordinary construction, such as is usually employed in looms of this class, and as its construction and operation are well known, and as it forms no part of my present invention, it is not deemed necessary to herein describe itin detail, it sumcing to say that the cylinder is capable of revolution on its axis, and that it may be swung away from the needles, nio- `tion being imparted to it from the lever' a and arms q and s, whereby when lever a is operated so as to swing the arms s outward the cylinder carried b v said arms will strike against hook q', which will turn it one-quarter of a revolution; but as the mechanism for thus operating the pattern or jacquard cylinder will he found in numerous patents, and as its operation, in connection with the hooks and heddie-frames, is similar to the ordinary and wellknown jacquard mechanism, further description is not deemed necessary. The needles n are operated by the cards ofthe jacquard-cylinder, and such of the hooks d2 as are carried by the needles which enter the perl'orations in the cards will remain in the path of the levers f, and when the latter ascend they will engage.

with the hooked ends of said hooks and cause the same and their respective heddle-frames to he raised and the warp-threads shifted.

To the brackets y of the frame B are pivoted at j the levers i. These levers are actuated by the lever c through the connection consisting of the liukslt 7c and m m and intermediate pivoted levers, o o. Thelinks lo are connected respectively at their opposite ends to the levers a and o, while the links m are connected to the le'- vers o and It will be seen that by this connection theleversi will be depressed by the upward movement of the lever ct, for as the lower ends of the pivoted levers 0 are raised by the lever a, and links 7s their upper ends will be depressed and-thus cause the depression of the levers When the movement of the lever a is reversed and it is caused to descend, the movement of said connecting links and levers is reversed, and the levers t' accordingly raised. It will thus be seen that the levers fand work inversely to each other-that is, as one ascends the other descends, and vice versa.

The strips al', by which the heddle-frames are suspended, (see Figs. 2 and 3,) pass through openings in the lever t, and are provided with shoulders or enlargements p at their upper ends. These shoulders or enlargementsrest upon the levers t', and when the latter ascend the strips are also raised. I

W is a weight attached to each of the hedtile-frames by the Vcords to, by the gravity of which the heddle-frames will be carried down IOO When'they are permitted to descend by the levers t.

When the apparatus is to be 'operated by hand, alever, r', (shown in dotted lines,) may be pivoted at 1', and connected by rods or other suitable means to the forked bar or link l. The lever r can be connected by a cord, r2, with a suitable treadle, said cord being also shown in dotted lines.

The operation of my'improved mechanism is as follows: The parts being in the position shown in Fig. 1,the lever a is caused to ascend, carrying with it the forked link Z, which raises the levers f. These levers Will engage With the hooks 12,Wliich havc'not been pushed aside by the cards of the jacq u ard-cylinder, and raise them, and consequently the hedd-le-frames to which they are respectively connected. At the same time levers t' will descend, and such otl the hooks as have been moved out ot engagement with levers f by theA card-cylinder and needles will descend with said levers. When the lever aI has reached the end ot' its stroke its movement Will be reversed, causing a reversal ot the movement of the leversj' and i, which Will now approach each other, and when the-enlargements l) meet the levers the hooks Will become disengaged from the levers f, and the succeeding card of the jacquardcyliuder may make a new selection through the needles n.

What I' claim isl. The combination of the levers f, forked link l, lever a, hooks d2, the needles n, a jacquard-cylinder, means for operating said cylinder, the lieddle-frames H, Weights W, and means for connecting said frames with said hooks, substantially as described.

2. The combination of the levers z', links 7c m, intermediate levers, o, the lever a, suspension-strips d', having enlargements p, the hedf dle-frames H, and Weigh ts W, substantially as described.

3. The vcombination ot' the leversf and forked link l, links 7cm, intermediate leversm', and the lever c, substantially as described.

4. The combination ofthe leversj'and z', the forked link l, links 7c m, intermediate levers, o, lever a, hooks d2, strips d', having enlargements 29, cords d, heddle-frames H, and Weights W, substantially as described.

In testimony whereofl I have hereunto set my hand in the presence of two subscribing witnesses.

- HENRI BUNZL'I. Witnesses: A

JOHN Scannen, JAooB WIEsNER.

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