US732033A - Wear-protecting means for heddle-bars. - Google Patents

Description

No; 732,033. r PATENTED JUNE30,1903.

R W. BARBER. R WEAR-PROTECTING MEANS FOR HEDDLE BARS.

APPLICATION FILED APR. 14, 1903.

N0 MODEL.

UNITED STATES Patented June 30, 1903.

PATENT OFFICE;

\(VILLIAM BARBER, OF LONSDALE, RHODE ISLAND, ASSIGNOR 'lO DRAPER COMPANY, OF HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

WEAR-PROTECTING MEANS FOR HEDDLE-BARS.

SPECIFICATION forming part of Letters Patent No. 732,033, dated June 30, 1903.

Application filed April 14, 1903.

To all whom it may concern.-

Be it known that I, WILLIAM BARBER, a citizen of the United States, and a resident of Lonsdale, county of Providence, State of Rhode Island, have invented an Improvement in Wear-Protecting Means for Heddle-Bars, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention relates particularly to the so-called steel-harness type of loom-harnesses, wherein a series of steel heddles, serving also as warpstop-motion detectors, are mounted upon a transverse supporting'bar forming a part of the harness-frame. A loomharness of this type is shown in United States Patent No. 536,969. The detector-heddles, formed of thin flat metallic strips,are provided with elongated slots, through which the supporting-bar, also metallic, is passed, the beddles having a limited movement longitudinally relatively to the bar. In actual practice the heddle motion very frequently wears the supporting-bar to such an extent that it must be discarded and a new one substituted, involving expense, as well as loss of time. On account of the contraction in width of the warp from the warp-beam to the fell the greatest wearing motion of the heddles is manifest at the end portions of the heddle-bar, and ordinarily the wear is at the lower edge of the bar. In weaving some goods the wear is more apparent on the upper edge or top of the bar, due to certain conditions of tension. In either case, however, the edge of the bar is subjected to the wear and it is the object of my present invention to provide simple and removable means for protecting the heddlebar from such wear, so that such means can be renewed whenever necessary without necessitating any change in the heddle-bar. By thus providing protection for the latter its life is lengthened indefinitely and the wear which results from the heddle motion is taken up by cheap and easily-renewed protecting means.

Figure 1 is a front elevation, centrally broken out to economize space, of a sufficient portion of a steel harness-frame to be understood, with one embodiment of my invention Serial No. 152,597. (No model.)

applied thereto. Fig. 2 is a transverse sectional View thereof on the line 2 2,Fig. 1, looking toward the left; and Fig. 3 is a perspective View of the clamping members detached illustrated in Figs. 1 and 2.

The side bars a of the harness-frame, having at their upper ends heads a provided with seats for the heddle-supporting bars I) b, and having extensions a, to which are se- 0 cured the usual overhead connections o may be and are of substantially well-known construction, the heddle-bars being held in place by bolts b I have shown a frame arranged for a dou- 6 ble bank or series of detectors, one bar I) for each bank, the bars being made of rather thin flat metal set on edge. (See Fig. 2.) The bars pass through elongated slots d in the detectors d, made usually as thin flat 7o strips of steel, substantially as in the patent referred to, and having a limited longitudinal movement relatively to the bars.

In the drawings I have shown a piece of wire 10, located below and adjacent the lower edge of each heddle-bar and at each end thereof, the length of each piece depending upon the extent of the bar which-requires protection. To removably secure each wire in place,

I have devised a simple and effective clamp, and herein each clamp holds the wires which constitute wear-receiving means at one end of the two heddle-bars. Each clamp consists of two like and preferably rectangular metal blocks f and g, grooved, respectively, on one face to present two parallel channels f 9', Fig. 3, and holes f and g are made in the blocks between the channels. The block f is placed on top of the two bars I), the upper edges thereof entering the channels f, and 0 the block 9 is brought up below the bars, so that the lower edges thereof enter the grooves g, as shown best in Fig. 2, and a headed bolt his passed through the holes in the two blocks between the heddle-bars. Anut h and washer 5 h are applied to the threaded end of the bolt, and bysetting up the nut the blocks f and g are drawn toward each other. Before so doing, however, the outer ends of the two wearreceiving members p are insertedin the chan- I00 nels or seats g, between the bottoms of said channels and the edges of the bars, and then the nut is set up, tightly clamping the said members 1) in position against the edges of the heddle-bars.

Referring ,to Fig. 1, it will be seen that the clamps are located adjacent the heads a and the wear-receiving membersp extend inward as far as desired, usually only a few inches. Preferably the membersp are made of straight pieces of cheap wire of proper diameter, and they take up all the wear due to the heddlemotion and the action of the ends of the heddle-slots d effectually protecting the bar b. When a wire becomes worn, it is removed by loosening the nut 72, and a new one is inserted. Ma'nifestly such wires could be placed over and adjacent the top edges of the heddlebars, if desired, or they could be used at both top and bottom if the wear required such use.

Herein I have shown the channels 9 as deeper than the channels f, as the wear-receiving members are seated in the channels g; but it is within the spirit and scope of my invention to deepen the channels f it top protection is needed or to reverse the location of the blocks, placing blockfbelow and block 9 above the heddle-bars. j

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

In a harness-frame, a transverse heddlesupporting bar, metallic heddles slotted to receive said bar and having longitudinal movement relatively thereto, a clamp on the bar at each end thereof, and an elongated wear member removably held by each clamp and extended inward along the edge of the bar, to protect the same from wear due to heddlemotion.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WILLIAM BARBER.

Witnesses:

LEANDER, G. BowERs, CHARLES A. ENGLAND.-

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