US550088A - gordon - Google Patents

Description

'N Mod I 6 H. WYMAN 8; A. A. GORDON.

HARNESS, FRAME MOVING DEVICE FOR LOOMS.

No 550088. Patented NOV. 19, 1895.

ANDREW BYGRAHANLPQOTOUTNQWASHINGI'OMDE UNITED STATES PATENT OFFIC HORACE WYMAN AND ALBERT A. GORDON, OF WORCESTER, MASSACHUSETTS, ASSIGNORS TO THE OROMPTON LOOM WORKS, OF SAME PLACE.

HARNESS-FRAME-MOVING DEVICE FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 550,088, dated November 19, 1895.

Application filed February 29, 1892- Serial No. 23,229r (N0 model.)

To all whom it may concern.-

Be it known that we, HORACE WYMAN and ALBERT A. GORDON, of Worcester, county of WVorcester, State of Massachusetts, have invented an Improvement in Harness-Frame- Moving Devices for Looms, of which the following description, in connection with the accompanying drawings, is a specification, like letters and figures on the drawings representing like parts.

This invention has for its object to simplify and improve that class of looms in which the harness-frames are moved by a positive motion in but one direction.

Our invention consists in novel means devised by us for moving the harness-frames in a direction opposite that in which they are moved positively. Mechanism for this purpose as heretofore constructed has been defective in that the connections interposed between the harnessframes and the spring-controlled levers have been so made and attached to the levers in such manner that the connections wear so rapidly when joined to the levers as to entail expense in repairs, besides loss of time, this excessive and rapid wear being due chiefly to the fact that the connectiontips on the lever at the point of their junction, owing to the particular lines of their movement.

lngmr invention the spring-controlled levers are shown as provided with sectors, against which the connections, prefer bly fiat strips, bear, one end of each spring being connected to the end of the lever farthest from the sector and also to the frame-piece. In this way we overcome all sidewise or swaying movements of the connections and also reduce the wear on the connections to the minimum.

Heretofore spring-controlled levers have been arranged side by side on the same fulcrum-rod; but by separating the levers into two sets and mounting them on two fulcrumrods, so that the strap-attaching end of one lever points to the right and the other to the left of a vertical plane at a right angle to the series of harness-frames, we are enabled to get two rows of levers in the line occupied by the connections leading to the harness-frames, and we are enabled by having two rows of levers to make the harness connections broader than if we used but one row, and by providing one end of each lever with a sector the connections may be sustained on a flat surface during the movements of the levers. The levers have notches at their outer ends at different distances from their fulcra to receive the 'buckles or loops to which is attached one end of the springs used, the adjustment of a buckle or loop into one or the other of said notches providing for greater or less tension of the springs. The ends of the springs most remote from the notched ends of the levers are connected to a springholding bar, and the frame where this bar is located has a series of notches whereby the bar may be quickly adjusted in its position to at one operation vary the tension simul taneously of all the springs. The back-stop for the levers is made as a bar or rod, which occupies a position at an angle to'the fulcrumrod for the levers, so that the said levers may occupy different positions in order that the front and back harness-frames may occupy different horizontal planes, the back harness-frame or the one farthest from the breast-beam of the loom having the greater movement. The levers have their hubs slotted to be applied to or removed from the fulcrum-rod without disturbing the latter, and the strain of the spring is such as to keep the levers seated on their fulcrum-rod.

Figure 1 in side elevation represents a sufficient portion of a loom to illustrate our invention; Fig. 2, a section thereof in the line 413, Fig. 1.

The supporting frame or head A, of any suitable shape to support the working parts, has two fulcra B B, on which are mounted the slotted hubs of the two series of levers O D, having preferably, as shown, sector-shaped ends 0 D, the said ends being sufficiently wide to receive against their faces the straps or connections 0 D one end of each of said straps being suitably attached, respectively, to one of said levers O D, the means employed being in this instance of our invention the projections c (1, over which the straps are hooked. The ends of the two series of levers are made to face each other, just enough space being left to permit the straps C D to come between them, as in Fig. 1, the straps attached to the levers being attached in alternation to the successive harness-frames. Parts of the sides of the levers may touch, or substantially so, and thus obviate twisting strains.

The outer ends of the lovers C D are notched, as at 2 3, to receive the loops 4. 5, attached by springs (l 7 (fully shown at the left in Fig. 1) to hooks 8 9 of rods or bars 10 12, mounted in notches of the frame A,'and, as shown in Fig. 1, there are a series of bar-holding notches 13 ll, in either of which the said bars maybe placed when it is desired to alter at one operation the tension of all the springs. The open slots in the hubs of the levers to fit the rods B are in such direction that the springs 6 7 act normally to keep the levers on the said rods, and to enable the levers of the series to be moved over different distances by the springs when acting to move the harnessframes the stop-rods G G are set at an inclination, as represented, to the fulcru1n-rods B B.

By the employment of the sectors 0 D the straps C D will last for a very long time, as the wear is hardly appreciable, whereas when a folded loop of the strap at right angles to its thickness the strap will soon be cut or worn. through by the unequal strains and the tendency of the strap to rock at its point of connection with the lever, this rocking being necessary, owing to the arcs of movement of the levers and straps.

By arranging the lovers in sets of two, one to the right and one to the left, as described, with the connections from the levers and the harnesses in the middle between the ends, we obtain more room with a given number of harnesses than heretofore obtained.

The provision of notches for the ends of the lovers and slotting their hubs and providing for them inclined backstops are of advantage not only with sector-ended levers, but also with any well-known levers arranged either all on one side or part on one side and part on the other side of a center line, as shown in the accompanying drawings.

It will be noticed in this ourinvention that the broad sector-like strap-supporting faces of each pair of levers occupying the same vertical plane have their straps arranged face to face and are led directly to one harness-frame, each harness-frame having two straps connected to it, and the strain on the straps is a straight strain, which would not be the case if the ends of the levers passed one end beyond the other, for then the straps would have to be led diagonally upwardly to the harnessframes.

lVe claim 1. In a loom, a series of harness frames, and

two straps connected to each of said frames,

combined with two levers for each frame, each lever being provided with a sector-like strap supporting end, the ends of the two levers connected to the same harness frame being directly opposed to and separated one from the other for a distance sufficient to receive freely between them both of said straps, the described construction and location of the levers of each pair of levers avoiding lateral strains between the harness frames and the said levers, substantially as described. a part or arm of the lever is extended through 2. I11 a loom, a series of harness frames, and two straps connected to each of said frames, combined with two levers for each frame, each lever being provided with a sector-like strap supporting end, the ends of the two levers connected to the same harness frame being directly opposed to and separated one from the otherfor a distance sufficient to receive freely between them both of said straps, said levers being pivoted each between its ends and each being notched at its outer end, and a series of actuating springs, one for each of said levers, said springs being adj ustabl yconneeted to said levers, to operate, substantially as described.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

HORACE \VYMAN. ALBERT A. GORDON.

\Vitnesscs:

Jus'rnv .A. WARE, JoHN l Svnn.

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