US128772A - Improvement in loom-stop-actuating mechanisms - Google Patents

Description

3 Sheets--Sheet 2.

.1.wo0nMAN. Improvement in Loom-Stop Actuating Mechanisms. 910.128,77?. Patentedjuly 9,1872.

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3 Sheets--Sheet 3A A. J. WOODMAN.

ctuating Mechanisms.m

Patentedluly 9,1872.

improvement in Loom-Stop A No. 128,772.

UNITED STATES ANDREW J. wooDMAN, oF INDIAN ORCHARD, (SPRINGFIELD) MAss.

IMPROVEMENT IN LOOM-STOP-ACTUATING MECHANISMS. t

Specification forming part of Letters Patent No. 128,772, dated J ulhy 9, 1872.

To allpersons to whom these presents may come:

Be it known that I, ANDREW J. WooDMAN,

of Indian Orchard, of the city of Springfield,

ofthe Stateof Massachusetts, have invented a new and useful Improvement in Jacquard or Fancy Looms; and do hereby declare the same to be fully described in the following specication and represented in the accompanyin g drawing, of Which- Figure 1 is a top view, Fig. 2 an end elevation, and Fig. 3 ya rear elevation, of a loomframe with the ordinary stop-motion, harnessmotion or operative mechanism, and the harness stop-motion or mechanism, to be hereinafter described.

Under ordinary circumstances, when the iilling-thread of a shuttle breaks and the loom stop-motion is putin operation, the lay, owing to momentum generated in the working parts, will continue to make one or more` beats before it will stop. j The harnesses will change ,every time a beat of the lay takes place, thereby producing one or more extra movements of them, which, before the loom can be again started, require av proper adjustment of the harness mechanism in order that the pattern may not be irregularly woven. My invention saves all such extra movements of the harnesses, and also all the labor and time required toeffect the due readjustment of the parts.

I have combined with the fancy loom or its ordinary stop-motion and harness-operative mechanism, ,a mechanism by which the drawpawl of the pattern-prism of the harness mchanism is raised and held out of action upon the ratchet or gear of the prism simultaneously with or immediately after either a breakage or a running out of the filling.

In the drawing, A denotes the loom-frame; S, the stop-motion; and B, a harness-operative mechanism of the usual kind, the patternprism of the latter being shown at a, as provided with its operative gear b and draw-pawl c. The prism is supported by, so as to be capable of revolving in, a vibratory frame, d,

' and the draw-pawl is held down upon the prism-gear by a spring shown at e, all being common and well understood by weavers. In carrying out my invention, I arrange over the draw-pawl and connect with it in manner as shown a bent lever, C, to turn on a rod, f, as a fulcrum, the shorter arm of such lever being connected with the longer arm of another lever, D, by a rod, g, pivoted to the two. The lever D, arranged on one end of the loomframe in manner as shown, turns freely on a fulcrum, h, extended from such frame. rIhe shorter arm of the lever D is over a stud, i,

making part of or projecting from an arm, E,

fixed on one end of the rocker-shaft 7c of the operative lever, by which the take-up mechanism is stopped by Athe stop-motion. The other arm of the said operative lever is shown at n. The arm 'n is that immediately in rear of the filling-fork slide or carrier m (of the stop-motion) which, when driven backward, produces a rearward movement of the arm n, and consequently causes the shaft 7c to turn in its bearings. When such takes place, the arm It" will actuate the lever D, whereby the lever C will be operated so as to raise the drawpawl o and hold it up in a manner to prevent it from acting upon the pattern-prism gear While it may be in movement with its carrier or frame. y

In connection with the parts above described, I employ a slide, o, arranged at the back of the breast-beam a', and between it and the aforesaid arm fn., all being as shown. From the said slide an arm, p, is projected between the shipper and the next adjacent end of the. loom-frame; and there is on the slide and in front of the arm n an inclined plane or cam, q, all beingas represented. A helical spring, r, enveloping the slide, serves to move it in a direction toward that end of the loom at which the' shipper is placed. On the shipper being forced out of its holding-notch and moved so as to effect the stoppage of the loom, the slide o will be advanced by its spring, and, as a consequence, the inclined plane or cam q will be moved against the arm a, and will hold it back, thereby causing the draw-pawl of the pattern-prism to be held up during such time as may be necessary. When the shipper is next moved back to its holding-notch the draw-pawl will fall back to place ready to operate the pattern-former.

I claiml. The combination, with the stop-motion-7 and the harness-operative mechanism,7 of a fancy loom mechanism, substantially as described, for raisin g' the draW-pawl of the pattern-prism and retaining it out of action with the operative gear of such prism under circumstances as set forth, such mechanism consisting of the levers C D, arm E, rock-shaft k, arm n, and slide o, with its operative spring 1^, inclined plane or cam q, and bent arm lo, all being arranged and applied substantially in manner, and to operateas explained and represented.

2. I also cla-im the combination of the said levers C D, arm E, rock-shaft le, arm u, slide o, spring r, cam q, and arm p, all being an ranged and connected, substantially as dcscribed, and for application to the stop-motion77 and harness-operative mechanisms of a fancy loom, as and being for the object as set forth.

ANDREW J. WOODMAN.

Witnesses:

R. H. EDDY, S. N. PIPER.

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