US357712A - Assigatoe to - Google Patents

Description

(No Model.)

G. F. HUTOHINS.

STOP MOTION FOR LOOMS.

No. 357,712. Patented Feb. 15., 1887.

UNITED S'ra'rns Parent FFICEo GEORGE E. HUTOHINS, OF \VORCESTER, MASSACHUSETTS, ASSIGNOR TO THE KNOWLES LOOM VORKS, OE SAME PLACE.

STOPHVIOTEON roe toot/is.

SPECIFICATION forming part of Letters Patent No. 357,712, dated February 15, 1887.

Application filed hiay 24, 1886. Serial No. 203,059. (No model.)

To aZZ whom it may concern:

Be it known that I, GEORGE F. HUrcHINs, a citizen of the United States, residing at iVorcester, in the county of Worcester and State of Massachusetts, have invented a certain new and Improved Stop-Motion for Looms; and I do hereby declare that the following is a full, clear, and exact description thereof, which, in connection with the drawings making a part of this specification; will enable others skilled in the art to which my invention belongs to make and use the same.

My invention relates to looms and to an attachment or mechanism to be applied thereto, which is designed to act upon the Shipping mechanism and stop the loom when it would not be stopped by the usual protecting mechanism of well-known construction and operation, and by means of which usual protecting mechanism the loom is stopped in case a shuttle fails to enter its receiving-box a sufficient distance to throw off said protecting mechanism. In case the shuttle enters the box asufficient distance to throw off the usual protecting mechanism and prevent the loom from being stopped as the lay beats up, but not a suiiicient distance to prevent its end from project ing over the race-plate, so as to prevent the loom from operating in a proper manner, then the loom will be stopped by means of my attachment or mechanism, connected with the shipping mechanism, in the manner to be hereinafter described.

In the operation of looms it frequently hap pens that ashuttle stops in such aposition that while it has entered the box far enough to throw the ordinary protecting mechanism out of action, so that the loom will continue to run, it still projects over the race-plate and under the hand-rail of the lay, so that it prevents the box from being dropped at all, and also prevents the box from being raised any higher than the point at which the projecting end of the shuttle will strike the hand-rail. Therefore, if it be attempted to lower the box in order to present an empty compartment to receive a second shuttle following the one above referred to, the said projecting shuttle will prevent the box from being lowered, as previously stated, the projecting end extending over the end of the race-plate, and the sec ond shuttle will smash into the first one and be stopped on the race-plate, where it will eventually canse a breakage of the warpthreads in spite of the ordinary protecting mechanism. This same thing is also liable to occur in case of the box being raised instead of lowered with a shuttle projecting out, as above described, for if the box is stopped by the projecting shuttle striking the hand-rail while the compartment in line with the lay has a shuttle in it, this shuttle will stop the second shuttle on the race-plate, with the same result above mentioned.

My invention consists of an attachment to be applied to looms, and located at each end of the loom, just inside of the shuttle-boxes, with its end projecting out so that it will extend over the race-plate as the lay beats up and come in contact with a shuttle, which, though having entered its receivingbox a sufficient distance to throw off the usual protecting mechanism and prevent the loom from being stopped, still has its end projecting out so far as to prevent the loom from being properly operated.

My device is connected, either directly or through intermediate mechanism, with any usual and wellknown form of shipping mechanism for stopping the loom. The projecting end of the shuttle striking against my device as the lay heats up operates the same and causes the shipping mechanism to be operated and the loom to be stopped, in the manner to be hereinafter described.

I have shown in the drawings a detached portion of a well-known form of drop-box loom with my invention applied thereto, and suliiciently illustrated to enable those skilled in the art to which my invention belongs to understand the construction and operation thereof.

Figure 1 is a vertical cross-section of a portion of a drop-box loom, taken on line X X, Fig. 2, looking in the direction of arrow a, same figure, showing my attachment or device applied thereto and one way of connecting the same with the usual shipping mechanism employed for stopping the loom. The full lines represent the position of the several parts of the mechanism when the loom is in operation, and the dotted lines their position when the loom is stopped. Fig. 2 is a plan view of the end of the loom shown in section in Fig. 1; and Fig. 3 is a front view of one end of the breast-beam detached, looking in the direction of arrow 6, Figs. 1 and 2.

As the manner of construction and mode of operation of the ordinary protecting mechanism (shown in the drawings) for stopping the loom is well known and forms no part of my present invention, it is not necessary to describe the same.

My attachment consists of a slide, A, supported and adapted to move back and forth in a guide-piece, B, which is in this instance secured upon the top side of the breast-beam 1?, near the end thereof. The slide A is located at each end, ofwthe, loom, having its inner end, A, projecting out from the breast-beam, so that it will extend over the race-plate W as the lay T heats up just inside of the shuttlebox It, or at the mouth of said shuttle-box. (See Fig. 2.) The end A of the slide A is in this instance bent upward and backward, to allow the end of shuttle Q to strike against it as the lay beats up in case said shuttle extends out from its receiving box a sufficient distance to prevent the loom from operating in a proper manner. The upward-projecting end A also prevents the filling from catching.

on said slide A.

I have shown in the drawings the outer end, A, of the slide A connected with the upper end of a lever, O, in this instance by having a hole in the end thereof, through which the upper end of said lever projects. The lever G is supported and swings upon a stud, D, held in a stand, E, which is secured upon the front side of the breast-beam 1?. (See Fig. 3.) Said lever O has a short arm, 0, which projects out at its lower end, and is adapted to engage the arm F,secured upon the shipper-shaft G, when the loom is in operation. The end of the arm F, pressing upon the arm 0 of the lever 0, holds the lever O in an upright position, and also the slide A in its forward position, as shown by full lines, Fig. 1.

When the loom is not in operation, the driving mechanism being shipped, the arm F will not be in contact with the arm 0, but will be in the position shown by dotted lines, Fig. -1, and a spiral spring, S, in this instance secured at one end to the lever O and at the other to the stud D, will hold the lever back in the position shown by dotted lines, Fig. 1, and also the slide A, so that the end A of the slide will be away from the shuttle-boxes and not interfere with the free access to the same when the loom is not in operation.

Any equivalent means for retaining or holding the slide Ain its backward position when the loom is not in operation may be made use of in lieu of the spring S.

It is not essential for the proper operation of my device that there should be any means for holding the slide A in its backward position, for this can be done by the attendant when necessary; and in case the slide is connected directly with the shipping mechanism it will serve to hold the slide in its backward position when the loom is not in operation and in its forward position when the loom is in operation.

It will be understood that when the handle V is drawn back to start up the loom the shipper-shaft G, upon which the arm F is secured, will be revolved in the usual Way, causing the arm F to be drawn down and to press against the lower arm, 0, of the lever G, drawing said lever into the position shown by full lines, Fig. 1, and also moving forward the slide A against the action of the spring S,

and holding it with its end A projecting out over the race-plate as the lay heats up until it is forced back by the projecting end of the shuttle coming in contact with it, or the loom is otherwise stopped.

The shipper-shaft G, located under the breast-beam and connected with mechanism for shipping the driving-power and stopping the loom, may be of any usual and well-known construction, as the same forms no part of my invention, which relates only to the device or attachment to be applied to the loom at each end of the breast-beam and to be acted upon by the shuttle, as above specified, and connected with any wellknown form of mechanism for stopping the loom.

D The operation of my attachment or device will be readily understood by those skilled in the art from the above description, in connection with the drawings, and is as follows:

\Vhen a shuttle, Q, stops in a position similar to that shown in Fig. 2, having entered the shuttle-box R far enough to throw off the ordinary protecting mechanism, as shown in Fig. 1, and prevent the loom from being stopped, said shuttle will, when the lay beats up, strike the end A of the slide Aand push said slide backward, causing the lever O to swing on the stud D and the arm 0 to turn or revolve the shipper-arm G by raising the arm F, secured thereon, and the loom to be stopped by means of the shipping mechanism shown in the drawings, which is of the usual construction, to be operated by the ordinary protecting mechanism.

The shipper-arm H, secured on the shippershaft G, being turned a short distance in the direction of the arrow I, (see Fig. 1,) will cease to hold the lock-lever J in its position, and the spring K on the shipper-rod L, being allowed to act, will, by means of the shipper M, throw the belt from the tight pulley N onto the loose pulley In lieu of the mechanism above described for shipping the belt and stopping the loom, any other equivalent mechanism or means may be employed, operated by my attachment or mechanism.

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

1. The combination, with the loom-frame and lay, of a slide having its end projecting IIO out to extend over the race-plate at the inner end of a shuttlebox as the lay beats up,abe1tshipping mechanism, a lever arranged to be operated by said slide, arock-shaft having an arm to engage said lever, and connections between said rock-shaft and the belt-shipping mechanism, substantially as set forth.

2. The combination, with the breastbeam, the belt-shipping devices, and the lay, of the slide A, supported by said beam and having the extension A, the lever O, the shipper rock-shaft G, having arm F to engage the said lever, and also the arm H, and the lock-lever shaft G, shipper-arm H, lock-lever J, shipperrod L, spring K, and shipper M, substantially 20 as shown and described.

GEORGE F. HUTCHINS.

-Witnesses:

JOHN G. DEWEY, FRED. W. SMITH.

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