US123094A - Improvement in loom-picking mechanisms - Google Patents

Description

J. C. FISHER, Improvement in Loom Picking Mechanism.

Patented Jan. so, 1872.

Wain 496. @70/4 [yha's 066 602726 .Nrrnn STATES PATENT QFFIGE.

IMPROVEMENT IN LOOM-PICKING MECHANISMS.

Specification forming part of Letters Patent No. 123,094, dated January 30, 1872.

To allpcrsons to whom thescpresents may come:

Be it known that I, J OHN G. FISHER, of the city and county of Providence, of the State of Rhode Island, have invented a new and useful Improvement in Looms for Weaving Cloth; and do hereby declare the same to be fully described in the following specification and represented in the accompanying drawing, of which Figures 1 and 2 are side elevations, and Fig. 3 an end view of the picker-staff and part of the lay of a loom with my invention applied thereto. Fig. 4 is a horizontal section taken through the picker-staff and sword of the lay, showing the parts below the plane of the section.

The object of my invention is to efiect the proper adjustment of the picker-staff to the shuttle-box of the lay, my invention consisting in devices, as hereinafter described, for accomplishing such, also, the combination of such devices with the rock-shaft and pickerstaff, or the supporting and guiding mechanism of the latter.

In such drawing, A denotes the shuttle-box; B, the race-beam; C, the sword and D, the rock-shaft of the lay of a loom. The pickerstafl' is shown at E as supported by mechanism substantially like that described in the United States Patent No. 116,251, granted June 20, 1871, on an invention made by myself. The standard or base-plate of the said mechanism is shown at F.

In carrying out my improvement, I combine the said standard or its equivalent with the rock-shaft by devices whereby I am enabled to impart to the pieker-stafi' the requisite adjustment to bring it at any time to work freely in the slot of the shuttlebox. These devices consist of two slotted "T-bars, H I, connected together by screws and nuts, and made as represented. The T-bar H is socketed to receive the end of the rock-shaft, and is provided with a clamp-screw, a, to fasten the socketed shank to such rock-shaft.

Fig. 5 is a horizontal section, taken through the rock-shaft and the two T-bars. The heads or parts b c of these two T-bars are placed alongside of each other, one bar being provided with horizontal slots, at d, and the other with curved slots, 0 6, these latter being arranged on it as shown in Fig. 6, which is a side view of it. Perspective views of the two T-bars are given in Figs. 7 and 8.

It frequently happens that the race-beam of a loom is not directly over the rock-shaft, or the picker-staff may become crooked or warped. WVhen such takes place, my two T-bars, applied together and to the rock-shaft and standard, as set forth, afi'ord a ready means of properly adjusting the picker-stafl' to the shuttlebox slot. They also admit of its vertical adjustment, as may be necessary to effect the proper throw of the shuttle. The outermost T-bar is fastened to the standard F by screws ff, going through slots 9 g in the T-bar, as shown.

I claim as my invention- The two T-bars H I, constructed and connected together as set forth, combined with and applied to the rockershaft, the pickerstalf, and its supporting mechanism, as explained.

JOHN G. FISHER.

Witnesses:

It. H. EDDY, J. R. Snow.

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