US439725A - Picker-stick check for looms - Google Patents

Description

(No Model.)

V.'DUPRE & J. E. DUPR. PICKER STICK CHECK PCR LCCMS.

No. 439,725. Patented Nov. 4, 1890.

www @Hom/req UNITED STATES PATENT OFFICE.

VICTOR DUPRE AND JOSEPH E. DUPR, OF TAFTVILLE, CONNECTICUT.

PICKERrSTICK CHECK FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 439 ,725, dated November 4, 1890.

Application tiled April 21, 1890. Serial No. 348,890. (No model.)

To all whom it may concern:

Be it known that we, VICTOR DUPRE and JOSEPH E. DUPR, both citizens of the United States, and residents of Taftville, in the county of New London and State of Connecticut, have invented a certain new and useful Improvement in Picker Stick Checks for Looms, which improvement is fully set forth and described in the following specification, reference being had to the accompanying sheet of drawings, in which- Figure lis a front side elevation of portions of a loom frame and batten having attached thereto our said picker-stick check; and Figs. 2 and 3 are front, face, and side views, considerably enlarged, of the said picker-stick checks.

This invention is designed for use in the class of looms in which the shuttle that carries the filling is thrown back and forth in the hatten byso-called picker-sticks, located one at each end of said batten; and the immediate object of our invention is to provide a yielding stop to cheek the picker-stick in its outward movement and to cushion said stick, and thus relieve the shock at the sudden'stopping of the shuttle as it shoots through the shuttle-race and comes in contact with said stick.

Referring to the drawings, a denotes a portion of a loom-frame; b, the batten or lathe, and c the picker-sticks arranged to throw the shuttle in the usual or ordinary manner. Secured to the batten at each end, in the path of the picker-stick, is a yielding stop or check, formed of a coil-spring d, having a depending arm that is bent to form a loop d to inclose and support a strip of leather e, which latter, when the device is in use, receives the impact of the picker-stick. The lower end of the depending wire is bent forward at an angle, so'that the loop d is located in front of the wire and extends to both sides of it. In this manner the leather strip which extends upwardly from the loop is forced back against the wire by the advancing stick and forms a cushion between the stick and the wire, the strip extending equally upon both sides of the wire. By placing the depending portion of the wire directly in the path of the stick, with its lower end projecting toward the stick, the stick strikes the lower end of the wire first, which is the farthest from the spring or the fulcrum, and consequently it meet-s with the least resistance; but as it continues to advance the lower end of the wire is forced back and the portion nearer Ythe spring is brought into contact with the stick, which offers a correspondingly-increased resistance to the stick, whose power is correspondingly .decreased by its point of contact being farther from its pivotal point or fulcrum. In this manner the power of the check is gradually increased and the power of the stick decreased until the stick has been gradually stopped. Owing, to the peculiar sliding movement caused by this changing position of the point of contact between the check and the stick, the leather strip is liable to be drawn up out of the loop, so we prefer to make the lower end of the strip wider than the remaining portion, and then by introducing the strip from below the wider end prevent its being drawn through the loop. The coil d may be supported in any practical way. As here shown, it encircles a wooden core f, through which a bolt h passes, and by means of which the complete check may be attached to the batten or to a plate k, that may be screwed to said batten. The leather pad e, which we have shown and described, serves to materially reduce the noise and wear which would result if the picker-stick were allowed to come in direct contact with the spring d.

Our check is extremely simple and cheap to make, and may be easily applied to either new or old looms without the aid of special tools or great experience.

1. A picker-stick check for looms, consisting of a depending wire placed directly in the path of the stick, and a long cushion secured to the lower end of the wire and having its free end projecting upwardly in front of the wire and extending equally upon both sides of it.

2. A picker-stick check for looms, consisting of a depending wire, the lower end of which is bent forward at an angle to forni a loop extending upon both sides of the wire, and a leather strip in said loop, the lower end of which is wider than the main portion of it.

VICTOR DUPRE. JOSEPH E. DUPRE. Witnesses:

. FRANK H. ALLEN,

ALoNzo M. LUTHER.

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