US346912A - Island - Google Patents

Description

(No Model.)

E. F. HAZARD & F. W. GREENHALGH. TENSION REGULATING DEVICE FOR LOOM SHUTTLEES. No. 346,912. Patented Aug. 10, 1886.

B A /A UNITED STATES EUGENE F. HAZARD AND FREDRIGK W. GREENHALGH, OF PEACE DALE, RHODE ISLAND.

TENSION-REGULATING DEVICE FOR LOOM-SHUTTLES.

SPECIFICATION forming part of Letters Patent No. 346,912, dated August 10, 1886.

Application tiled October 25, 1885. Serial No. 180,936. (No model.)

To all whom it may concern:

Be it known that we, EUGENE F. HAZARD and FREDRIOK W. GREENHALGH, both of Peace Dale, WVashington county, Rhode Island, haveinvented certain new and useful Improvements in Tension Regulating Devices for Loom-Shuttles, of which the following is a specification, reierencebeinghad to the accompanying drawings, making part thereof.

The object of this improvement is to-provide a loom-shuttle with an elastic and adjustable tension-regulating device which, acting constantly and uniformly, shall serve to keep the filling-yarns from paying out too freely in weaving, and thereby becoming kinked and forming imperfections in thegoods.

Our invention consists in the devices and combination of devices set forth in the appended claim.

In the drawings, Figure 1 is a top plan of one end of a shuttle; and Fig. 2, a transverse section on line was of Fig. 1, looking away from the spindle.

A is the shuttle-body, and B the bobbin on the spindle O.

D' is a spring-holder, preferably a metal casting, fitted into the concavity at one end of the shuttle, between the tip of the spindle and the lateral aperture through which the yarn Y is drawn. This casting is shown as secured in place by a screw, E.. In the sides of this casting D two steel springs, F, are mounted, and held adj ustabl y by screws G G. The free ends of these springs approach eachv other and bear on the opposite sides of the yarn with such degree of pressure as is desired, regulated by the screws G, or by bending the springs more or less,without removal from the shuttle-body.

We prefer to broaden the springs at the tip .l

' cylindrical weight loosely held in a framecarried in the shuttle; but this arrangement gives no uniform and constant pressure while in use, nor is the device at all adjustable. It also causes an objectionable rattling.

Our device is perfectly noiseless, bears with a uniform pressure both while the shuttle is moving and when it is suddenly stopped, and the springs can be adjusted to the yarn before the spring-holder is secured to the shuttlebody, and changed afterward as desired.

' This advantage has not been attained by any springtension device heretofore used in shut tles.

Having thus described ourimprovement in loomshuttles, we claim as our invention In combination, theshuttlebody,the springholder, the screw E, whereby it is removably secured therein, the plate springs, and the screws G, whereby they are adj ustabl y secured to the spring-holder, as set forth. EUGENE F. HAZARD. FREDRIOK -W. GREENHALGH. WVitnesses:

HOWARD B. PERRY, JOHN G. PERRY.

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