US650140A - Loom. - Google Patents

Description

Patented May 22, I900. W. TODD.

No. 650,I40.

oom. 7 (Application filed July 18, 1899.!

(No Model.)

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STATES PATENT OF I E.

WALTER TODD, OF SLOATSBURG, NEW YORK, ASSIGNOR on FIVE-EIGHTHS To NATHAN mason, on NEW YORK, N. Y.

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SPECIFICATION forming part of Letters Patent No. 650,140, dated May 22, 1900.

Application filed July 18, .1899. Serial No. 724,299. (No'modelJ To all whmn/ it may concern.-

Be it known that I, WALTER TODD, a citizen of the United States, residing in Sloatsburg, in the county of Rockland and State of New York, have invented certain new and useful Improvements in Looms; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

This invention relates to looms, and it has reference particularly to that portion of a loom which is involved in its take-up mechanism.

The object of the invention is to provide a take-up mechanism which will be very simple in construction and which at the same time will be adapted to automatically adjust some of its parts so as to constantly maintain a perfectly-uniform tension upon the warp.

The invention is fully illustrated in the accompanying drawings, wherein corresponding letters of reference indicate like parts in the several figures, and wherein- Figure l is a front View of a loom provided with my improved take-up mechanism. Fig. 2 is a vertical sectional view, somewhat enlarged, of the front portion of the loom shown in Fig. 1; and Fig. 3 is an enlarged view of a certain detail involved in the invention.

In said drawings, a designates the loomframe, in which are mounted the usual batten structure a and accessory parts, and in which is journaled beneath said batten structure a rock-shaft b, said rock-shaft carrying the picker-sticks c at its ends, in which said picker-sticks are fulcrumed.

Above the shaft 1) is journaled a revoluble shaft d. This shaft carries at one end a gear e, which meshes with a pinion J, said pinion being secured upon a short shaft 9, upon which is also secured a gear h. The gear h receives rotary movement from a pinion 1', carried on another short shaft j, said shaft also carrying a ratchet-wheel k, that is controlled by a pawl 70'. The train of gearing able.

sent to the cloth a surface against which the latter will readily take.

Above the shaft (1 and the beam which it carries is another beam Z, that is provided at its ends with trunnions m, said trunnions having bearings in a pair of uprights n, that are provided with collars 0, which receive the shaft 6 and in which said shaft is freely mo'v- Said uprights are therefore supported upon the shaft 1) and at their upper ends they are .bent outwardly and then upwardly again, projecting in front of thebreast-beam pand carrying a guard-rail q, between which and said breast-beam the cloth a is adapted to extend.

The bearings for the trunnions m of the beam Z consist of inclined slots 8 in uprights 'n, which are open at their upper or outer ends, so that the trunnions may be removed from their hearings in order to dismount said beam Z.

Each beam Z d carries a pair of friction-collarst, the friction-collars of each beam being in contact of course with those of the other beam. Said collars should by preference be composed of leather or some other similar substance which will produce an effective engagement between the two beams sufficient for the transmission of rotary movement from the one to the other. This engagement will be considerably increased, moreover, by the action of a pair of weighted levers u, said 1e- Vers being connected to the extremities of the trunnions m by means of blocks 1), each having a recess 1; for the reception of the trunnion, and'being secured at the upper threaded 0 end of a pitman w by means of a nut 10 on said pitman, the lower end of said pitman being hook-shaped and engaging the lever u. The

weight a on said lever may of course be adjustable to and from the fulcrum thereof, so as to exert greater or less power on the pitman. The cloth r extends over the breast;beam,

thence down behind and around the beam d,

and then up back of the beam Z upon which it is wound. It should be remarked that the collars t of the beam d should be larger in diameterithan those of the beam l, so that the beam I will revolve the faster of the two.

It will be seen that'by virtue of the construction above described, although the 'beam Z revolves faster than the beam d andthe tendency therefore is to constantly windlthe cloth more and more,tightly;'this'tendency is at all times being overcome and the cloth therefore maintained at a continual uniform tension, because the engagement between the two beams is such that the one, when the ac.=..

tion of the cloth upon it issufiicient, can momentarily slip upon the other.- Thus the mechanism automatically adj usts'it-self to the action of the cloth, and in order to control it, so as to increase or diminish the tension upon the cloth, it. is only necessary to alter the position ofthe weights u on the levers a orsubstitute for said weights others of difierent size.

,It should further be remarked that although the leverage in the beam Zis constantly increasing from itscenter outwardly as the 'diameterof the roll of cloth increases in size, the mechanism is still able to adjust itself to allconditions. As soon as the beam Z is filled with a roll of cloth of the desired size said beam may be readily removed after cutting out the cloth by slipping its trunnions out of their hearings in the uprights n. It will be seen that such is the capacity of the beam Z that the cloth may even be wound upon it until thethickness of 'its roll approximates the width of the space between the beams. Furtherm ore, in View of the peculiar construction of my take-up mechanism and the arrange-- ment of its various parts, particularly with reference to the collars t, it will be apparent that any objectionable contact between the cloth'and the parts of the mechanism is enentirelyobviated; in fact, the only contact which the cloth has with the mechanism, exceptingthe take-uprollfis upon the surface of the beam d, upon which it lies without friction.

I claim- In a loom, a take-up mechanism consisting of a suitably-rotated driving-beam, another revoluble beam constituting the take-up roll and disposed above and sustained by said driving-beam, contacting frictional collars WVALTER TODD.

WVitnesses JOHN 'W. STEWARD, ROBERT J. PoLLrrT.

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