US741170A - Picker-stick motion for looms. - Google Patents

Description

No. 741,170. PATENTED 001*. 13, 1903.

' 0. A. SAW-YER.

PIGKER STICK MOTION FOR LOOMS.

APPLICATION FILED MAY 18. 1903p N0 MODEL.

i: 5 i 1! ii mm; nrh i AM -i NITED STATES Patented October 13, 1903.

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ORREN A. SAWYER, OF LOWELL, MASSACHUSETTS, ASSIGNOR TO DRAPER COMPANY, OF I-IOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

PICKER -STICK MOTION FOR LOOWIS.

SEEGIFICATION forming part of Letters Patent No. 741,170, dated October 13, 1903.

Application filed May 18, 1903. Serial No. 157,615. (No model.)

To @U whom it may concern:

Be it known that I, ORREN A. SAWYER, a citizen of the United States, and a resident of Lowell, county of Middlesex, State of Massachusetts, have invented an Improvement in Picker-Stick Motions for Looms, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

My present invention relates more particularly to that portion of the picker-stick motion of a loom which is sometimes termed the parallel motion. This term is usually applied to the rigid flat stand or support and the segmental shoe which rocks thereupon and which is secured to the lower end of the picker-stick, a strap connecting a spring with the latter near its bottom and tending to hold the stick down and toward the end of the lay. This strap is liable to break in the operation of the loom, and when it does the pickerstick is very apt to rise up through the slot in the lay under the impulse of the lug-strap. Then as the stick has no longer anything to hold it in place it may be thrown into the shuttle or into various parts of the hopper mechanism in an automatic filling-replenishing loom by the action of the lay, resulting in a smash.

One of the objects of my invention is the provision of means to prevent the pickerstick from rising as described, and this is attained by the use of a simple and, effective guard on the picker-stick.

Another object of my invention is the improvement of the construction of the shoesupporting stand whereby the usually nonmetallic plug therein (which serves as a hearing for the picker-stick against the pull of the lug-strap) can be readily removed and a new one quickly inserted when necessary. As is well known to those skilled in the art, such a plug is employed to reduce wear on the picker-stick at the part thereof in engagement with the plug.

The various novel features of my invention will be fully described in the subjoined specification and particularly pointed out in the following claims.

Figure 1 is a front elevation of the righthand side of a loom provided with automatic filling-replenishing mechanism with one embodiment of my present invention applied thereto. Fig. 2 is an enlarged detail, in front elevation and partly broken out, of the par-v allel motion illustrated in Fig. 1 and showing more clearly the guard and downhold for the picker-stick. Fig. 3 is a right-hand end elevation of the parts shown in Fig. 2;, and Fig. 4 is a top or plan View of the shoe-supporting stand, to be referred to.

I have illustrated my invention as applied to a loom provided with automatic filling-replenishing mechanism, as it is particularly useful in such connection; but it is to be understood and will be manifest hereinafter that my invention is not restricted in its use to automatic looms.

Referring to Fig. 1, the loom side A, lay A the picker-stick P, movable in the usual slot in the lay, and the lug-strap L, connecting the stick with the pick-motion, (partly shown at P may be and are all of well-known or usual construction, and I have shown a filling feeder or hopper F for the filling-carriers b mounted on the breast-beam at one side of the loom, substantially as in United States Patent No. 529,940.

The picker-stick near its lower end is at tached by a bolt 2 to a shoe 0, having a curved sole 0, the stick extending down below the bottom of the shoe, which latter rests upon and rocks on the flat top of a stand D, rigidly secured outside the loom side to the lay rockershaft A Fig. 1. Referring to Fig. 4, this stand is shown as bifurcated or forked at its outer end, the inner end of the open slot D, formed between the sides d, being recessed or having a pocket at 01 Figs. 2 and 4, to receive a plug (1, usually of wood, the outer end of the plug acting as a bearing for the pickerstick against the pull of the lug-strap, theloottom 19 of the picker-stick extending below the shoe and passing down through the slot D. A spring S of usual construction is mounted on the stand D, the free end-of the spring being attached by a strap 3 to a hook p on the depending part 19 of the picker-stick, the strap passing over the curved outer face of such part, as shown. The outer end of the sole of the shoe 0 rests on the separated ends (1 of the stand D. Beneath these ends (1 I have mounted a guard or downhold on the part];

of the picker-stick, such downhold being conveniently made of two sufficiently thick blocks g of leather or other suitable material on opposite sides of the part and held securely thereon by a headed bolt 3 and nut 4, Fig. 3. Should the strap sbreak or the connection between the picker-stick and spring S be ruptured in any way, it will be manifest that the downhold acting against the under side of the part d of the stand D will effectually prevent the picker-stick from rising and doing any damage either to the shuttle or to the hopper F or the filling-carriers therein on the forward beat of the lay.

Usually the picker-stick depends below the shoe and enters a hole in the stand or shoesupport, the strap from the spring passing up through the hole and being held by the bolt which connects the stick and shoe.

When it is necessary or desirable to renew the wooden bearing-plug, it is necessary to remove this bolt, disconnecting the stick and shoe, and withdraw the stick and strap from the hole in the stand, after which a new plug isinserted and the parts reassembled. With the construction herein described, however, it is only necessary to remove the strap 8 from the hook p and then to pull the connectedstick and shoe bodily outward along the slot D, leaving a free space for the renewal of the bearing-plug d. The labor and time of the loom fixer is greatly reduced thereby, and the loom is put out of operation a correspondingly shorter time.

In order to facilitate the removal of the plug, I have provided the stand D with a small hole 6, Figs. 2 and 4, opening into the recess (V, by means of which an awl or other pointed tool may be inserted to assist in loosening the plug. The stand has an upturned guide-lug (1 which enters an opening 0 in the shoe, and the latter is shown as provided with a downturned extension 0 which passes through the slot D and bears against the plug d, substantially as usual.

Having fully described my invention, what I claimas new,and desire to secure by Letters Patent, is-

1. In a device of the class described, a picker-stick and its attached shoe, a stand on which the latter rocks, a spring connection between the stand and picker-stick, and a downhold secured on the latter independently of the shoe to cooperate with the bottom of the stand near its outer end upon rupture of such connection and prevent lifting of the picker-stick.

2. In a device of the class described, a picker-stick and its attached shoe, a stand on which the latter rocks, the stand having an opening through which the lower end of the picker-stick extends,a bearing for the pickerstick at the inner end of said opening, a spring connection between the stand and pickerstick, and a downhold on the lower end of the latter beneath the stand, to cooperate with the latter independently of the bearing and prevent lifting of the picker-stick upon breakage of the spring connection.

3. In a device of the class described, a picker-stick and its attached shoe, a stand on which the latter rocks, the stand having an opening through which the lower end of the picker-stick extends, a spring connection between the stand and picker-stick, and nonmetallic downhold members rigidly secured to the end of the picker-stick on opposite sides thereof beneath the stand,to cooperate therewith and prevent lifting of the picker-stick upon rupture of the spring connection.

4:. In a device of the class described, a picker-stick and its attached shoe, a stand on which the latter rocks, said stand having a longitudinal slot in its outer end, the inner end of the slot being recessed and its outer end open, and a removable bearing-plug inserted in the recessed end of the slot.

5. In a device of the class described, a stand having an elongated, longitudinal slot open at one end and recessed at the opposite end, a picker-stick and its attached shoe, the latter rocking on the stand and said stick having its lower end extended into the slot, a bearing-plug removably held in the recessed end of the latter, and a spring connection between the stand and picker-stick, disengagement of said connection enabling the shoe and attached stick to be drawn outward on the stand for renewal of the plug.

6. In a device of the class described, a picker-stick and an attached shoe, a stand on which the latter rocks, said stand being bifurcated at its outer end, a downturned extension below the shoe entering the bifurcated part of the stand, a spring on the latter, a strap detachably connecting the free end of the spring and the picker-stick independently of the shoe, a removable bearingplug in the stand, to support the pickerstick against the pull of the lug-strap, and a downhold or guard on the downturned extension beneath the stand, to prevent lifting of the picker-stick upon breakage of the spring-strap, the bifurcation of the stand permitting bodily removal of the pickerstick and shoe while secured together when renewal of the plug is necessary.

In testimony whereof I have signed 111 name to this specification in the presence of two subscribing witnesses.

ORREN A. SAWYER.

Witnesses:

WILLIAM C. TROMBLY, ANNA T. HALLORAN.

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