US349794A

US349794A - James hinchliffe

Info

Publication number: US349794A
Authority: US
Publication date: 1886-09-28
Anticipated expiration: 1903-09-28

Description

(No Model.) I I J. HINOHLIPPE.

SHEDDING MECHANISM FOR. LOOMS. No. 349,794. Patented Sept. 28, 1886. v

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UNITED STATES PATENT OFFICE,

JAMES HINOHLIFFE, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO JOHN DOBSON AND JAMES DOBSON.

S HEDDING MECHANISM FOR LOOMS.

SPECIFICATION forming part of Letters Patent No, 349,794, dated September 28, 1886,

4 LApplication filed November 10, 1884. Serial No. 147,499. (No model.)

To all 'whom it may concern;

Be it known that 1, JAMES Hrnenmnrn, a subject of the Queen of Great Britain, residing in the city of Philadelphia, in the State .of Pennsylvania, have invented certain new and useful Improvements in Shedding Mechanism for Looms, of which the following is a full, clear, and exact description, reference being had to the accompanying drawing, forming a part of this specification.

My invention relates to jack levers for looms; and it has for its object the production of auniform and steady motion of the jack, in order that the hook thereof will engage with certainty of action in the lifting and depressing bars to produce the rocking movement of the vertical jack-lever for actuating the heddleframe. This result is accomplished by the mechanism hereinafter described,

It is unnecessary to an understanding of my invention to describe the construction and operation of a loom, as the general mechanism thereof is well known in the art and found described in numerous Letters Patentfor example United States Letters Patent No.

162,904, granted to George Orompton, dated May 4, 1875. 1n the accompanying drawing, B represents a vertical heddle-operating lever pivoted at K, and connected at both ends by cords hooked jack to act with precision,I fix a horizontal post, 0, permanently to the vertical leverBand at right angles therewith, and drill out a long slot in such post to admit of the free rise and fall in such slot of a guide-rod, D, which at one end is securely fastened to the end of the hooked jack A by being screwed into the same, the upper end of said rod passing through the slot of the horizontal post and capped with a nut to prevent the rod from falling through said slot, the latter being long enough to allow the rod to have free play therein in the direction of the length of the hooked jack, and around the said rod,bet\veen the hooked jack A and the post 0, is wound a spiral spring, E, pressing outwardly between the lower side of the horizontal post 0 and the upper side of the hooked jack, A. The result of this arrangement is, that each movement of the hooked jack is full, precise, and certain, the guide-rod causing it to move always in the same plane, and the spring E by its reflex action after each rising movement of the rod therein causes the saidhooked jack A to move freely on the pivot F, and brings it into such position that its hook catches with certainty. I

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

The combination, with the lever-bar B, having a fixed arm, G, and ahooked jack, A, pivoted thereto, of a slotted horizontal post,O,secu red to said lever-bar, anda vertical guide-rod, D, secured to said jack A, and reciprocated thereby in the slot of the post 0, and a spring, E, encircling said rod D between said post (3 and jack A, said parts being constructed, combined, and arranged substantially as described. In testimony whereof Ihave hereunto aflixed my signature this 6th day of November, A. D.