US957546A - Loom. - Google Patents

Description

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LOOM.

APPLICATION FILED MAR. 9, 1908.

2 SHEETS-SHEET 2.

Patented May 10, 1910.

HENRY COTE, OF WEST WARREN, MASSACHUSETTS, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO WARE MACHINE & LOOM COMPANY, OF WARE, MASSACHUSETTS,

A CORPORATION OF MASSACHUSETTS.

LOOM.

To all whom it may concern:

Be it known that I, HENRY Gem, a citi- Zen of the United States, and a resident of l/Vest Warren, in the county of Worcester and State of Massachusetts, have invented an Improvement in Looms, of which the following description, in connection with the accompanying drawing, is a specification, like numerals on the drawing representing like parts.

This invention relates to looms and especially to the picking mechanism therefor.

The features wherein the invention resides will be first hereinafter described and then pointed out in the appended claims.

Referring to the drawiiigs Figure 1 is a vertical section through a loom embodying my invention; Fig. 2 is a fragmentary view showing the lay and the rocker mechanism for operating the pickers; Fig. 3 is an en larged sectional view through one end of the lay and one picker; Fig. 4: is a view in perspective of one end of the lay showing my improved picker thereon, the reed being omitted.

The loom herein shown has the usual lay 3 which sustains the raceway 4: and the reed 5, and which is operated by a crank or eccentric from the crank shaft 6 ournaled in the frame 7. These parts are or may be all as commonly found in looms and form no part of my present invention.

In looms as now commonly made the shuttle 8 is thrown across the lay by means of a picker which is operated by pivoted picker sticks that extend up through slots in the lay.

As stated above one of the objects of my invention is to do away with the use of the picker sticks as now commonly employed.

In my improved device the shuttle is thrown across the lay by means of two pickers 9 which are connected by a slide 10. Said slide is preferably situated beneath the lay and may move back and forth in suit able guides 11 carried by the lay. The movement of the slide will obviously give movement to the pickers 9 and thus throw the shuttle across the lay. For moving the slide I have herein shown an actuating lever which is connected thereto and which is actuated by a rocker that in turn is actuated by the cams on a cam shaft 12. This actu- Specification of Letters Patent.

Application filed March 9, 1908.

Patented May 10, 1919.

Serial No. 419,869.

' ating lever is shown at 13 and its upper end is forked as at 61 to pivo-tally engage a pin 62 carried by a bracket 63 secured to the slide 10, while its lower end is pivoted at 28 to a fulcrum member 1 1 supported in any suitable way. I find it convenient to support this fulcrum member on the rock shaft 15 from which the lay swords 16 eX- tend because such a construction permits the actuating lever 13 to move back and forth with the lay and yet maintain its operative position. 7

The rocker which actuates the lever 13 is designated by 17 and it is shown as mounted on a rock shaft 18 journaled in a suitable bearing which may be sustained by an arch or other support 19 secured to the frame of the loom. This rocker is provided with an arm 20 which is pivotally connected to the lever 13 and with other arms 21 and 22 that are adapted to be engaged by cams 23 and 24 mounted on the cam shaft 12. The pivotal connection between the arms 20 and the lever 13 is secured by providing said arm 20 with a pin 26 that extends through a slot 27 formed in the lever 13. The lever 13 swings back and forth with the lay, and I propose to make the pin 26 long enough so that it will not be withdrawn from the slot 27 when the lay is in its forward position.

The cam shaft 12 may be rotated in any approved way, and is geared to the crank shaft 6 in such a way that said crank shaft will make two rotations to each single rotation of the cam shaft. With this arrangement it will be obvious that the rocker 17 will be rocked first in one direction and then in another by the cams 23 and 24, said rocker having a single rocking movement at each beat of the lay. The shifting movement of the rocker 17 will obviously swing the lever 13 about its pivot 28 with the fulcrum mem ber 14, and since the upper end of the lever is connected to the slide such movement of the lever will shift the slide. The cams 23 and 24: are so timed that each cam will actuate the rocker thereby to shift the slide 10 and throw the shuttle at the proper time in the cycle of operations of the loom.

The use of the usual picker sticks, lug straps and their connecting parts are entirely avoided by the use of my invention.

The pickers 9 are preferably adjustably mounted on the slide so that said pickers can be adjusted to suit the conditions under which the weaving is done. The pickers I prefer to employ comprise a hollow body 30 of metal which is filled with a cushion material 31 of leather or its equivalent, said cushion material being situated to engage the shuttle, as plainly seen in Fig. 3.

here the slide 10 is situated beneath the lay, as shown in Figs. 2 and 3, said slide will be provided at each end with a head 32 to which the picker is secured and which plays back and forth in a slot 33 formed in the lay.

It is desirable that the picker should be arranged so that the point of the shuttle will strike the center of the cushion material 31, and as shuttles are apt to vary in size somewhat I have provided means for vertically adjusting the picker on the lay so as to bring the picker at the proper elevation with reference to the shuttle on which it is acting. Vhile it is within my invention to provide for this vertical adjustment of the picker in any suitable way I have herein shown for this purpose an adjusting wedge 40 which is received between the body 30 of the picker and the head 32, said head having the inclined face 41 on which the wedge rests. The picker is held to the head 32 by means of a screw 42 which extends through a slot 48 formed in the wedge. Said wedge is backed by an adjusting screw as which controls the position of the wedge. If it is desired to raise the picker the screw 42 will be loosened and the wedge 40 shifted to the right Fig. 3, and when the picker is in the desired vertical position the screw may be again tightened thereby securely holding the picker in position. Other means than this for attaching the picker to the head and for securing the adjustment of the picker may be used however without departing from my invention.

IVhile I have illustrated herein one em bodiment of my invention I do not wish to be limited thereto as other mechanical arrangements for shifting the pickers without the use of picker sticks might be adopted without departing from my invention.

The mechanism herein illustrated can readily be applied to the loom so that it will not interfere in any way with the operation of the usual harness mechanism.

Having described my invention what I claim as new and desire to secure by Letters Patent is 1. In a loom, the combination with a lay, of a slide carried thereby and provided at each end with a head having an inclined face and a vertical shoulder, a picker sustained by each head and resting against said shoulder, a wedge interposed between each picker and the inclined face of the head, each wedge having a slot, a screw extending through the base of the picker and into the head and passing through the said slot, and means to adjust the we-dge thereby to change the vertical position of the picker.

2. In a loom, the combination with a lay, of a slide situated beneath the lay, means to actuate the slide, said slide having at each end a head having an inclined face and a shoulder, a wedge resting on each inclined face, a picker resting on each wedge and in engagement with said shoulder, and means to adjust the wedges for varying the vertical position of the pickers.

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

HENRY COTE.

Vitnesses:

BERTHA F. HEUSER, LOUIS C. SMITH.

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