US949579A - Rack adjustment for looms. - Google Patents

Description

S. KBNDR-ICK.

RACK ADJUSTMENT P0P. LooMs.

APPLICATION FILD MAY 13, 1909.

Patented Feb. 15, 1910.

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UNITE SOLOMON KENDRICK, OF ROCHESTER, NEW YORK.

RACK ADJUSTMENT FOR LOOMS.

Specification of Letters Patent.

Patented Feb. 15, 1910.

Application filed May 13, 1909. Serial No. 495,699.

To all whom it may concern:

Be it known that I, SOLOMON KENDRICK, a citizen of the United States, residing at Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Rack Adjustment for Looms; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

This invention relates to improvements in rack adjustment for looms.

The object of the invention is to provide means whereby the rack bed of narrow fabric looms may be adjusted to compensate for the wearing of the parts, thereby keeping the rack bed up in proper position with the relation to the shuttle block.

`With this and other objects in view, the invention consists of certain novel features of construction, combination and arrangement of parts, as will be more fully described and particularly pointed out in the appended claims.

In the accompanying drawings: Figure. 1 is a vertical sectional View through a portion of a loom showing the application of the invention thereto. Fig. 2 is a. rear view of the same parts. Fig. 3 is a detail view of one of the adjusting plates.

Referring more particularly to the drawings, 1 denotes the batten of a loom, 2 denotes the shuttle block, 3 the pinion, 4 the rack, 5 the rack bed, 6 the false bottom arranged below the rack bed, and 7 denotes the shuttle. These parts may be of the usual or any desired construction and do not form a part of the present invention.

In carrying out the invention, I provide the hatten 1 with a series of vertically disposed passages 8, which communicate at their lower ends with right-angularly formed rearwardly extending passages 9, which open through the rear side of the batten, as shown. In the right-angularly formed portions 9 of the passages are arranged interiorly threaded sockets 10, having enlarged outer portions 11, and attaching flanges 12, which engage the rear sides of the batten and are screwed or otherwise secured thereto. In the threaded sockets 10 are adjusting screws 13, having pointed or conical shape inner ends 14, and heads 14 which lie in the enlarged portions 11 of the sockets.

The upper portions 8 of the passages in the hatten communicate at their upper ends with the channel 15, in the upper side of the hatten which forms the seat for the rack bed and false bottom. In the channel 15, below the false bottom 6 is arranged a series of adjusting plates 16, which are provided on their under side and midway between their ends with outwardly extending shanks 17, the lower ends of which are beveled at an incline as shown at 1S. `When the adjusting plates are in operative position, the beveled lower ends 18 of the shanks 17 are in position to be engaged by the conical inner ends of the adjusting screws 13, whereby when said screws are turned inwardly the conical ends thereof will raise the adjusting plates 16, thereby elevating that portion of the false bottom engaged by the plate and through the same elevating or holding the rack bed up in proper position, thus compensating for the wear of the false bottom or other working parts engaged thereby.

In the form of looms now in use, when the rack bed drops below the shuttle block by reason of the wearing away of the false bottom the pinion will strike the top of the rack teeth which will sooner or later cause the breaking of these parts. As now constructed, when the rack bar has thus lowered to a dangerous position, it is necessary to remove the shuttle and blocks from the batten and replace the worn false bottom by a new one, after which the shuttles and blocks have to again be put in place, and it is only a short time before this operation has to be performed again. By means of my improved adjusted mechanism, this labor and expense is overcome and the parts properly adjusted without removing any of the same.

In wearing away, the false bottom, almost invariably wears first in one place more than another so that the rack bar is thrown out of alinement at one end or the other, or intermediate its ends. By providing a plurality of adjusting plates arranged as herein shown and described, the false bottom may be adjusted at such points where the same has become worn, thus elevating the rack bed at this point and keeping the same in perfect alinement.

From the foregoing description, taken in connection with the accompanying drawings, the construction and operation of the invention will be readily understood without requiring a more extended explanation.

Various changes in the form, proportion and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention as defined in the appended claims.

Having thus described my invention what I claim is:

l. In combination with the false bottom, a shuttle operating mechanism of a loom, a series of adjusting plates arranged below said bottom, shanks formed on said plates, said shanks having beveled lower ends, a series of adjusting screws arranged at right angles with the shanks of the adjusting plates and having conically shaped inner ends adapted to engage the beveled ends ot' said shanks, whereby the latter and said adjusting plates are elevated to adjust said false bottom.

2. In a loom ot' the character described, a batten having formed therein a channel and a series of right-angular passages communicating with said channel, a false bottom arranged in said channel below the shuttle operating mechanism of the loom, a series oitl adjusting plates arranged below said false bottom, shanks arranged on said plates and projecting into one portion of the apertures in said batten, said shanks having beveled lower ends, threaded sockets arranged in the other portions of said right angular passages, and adjusting screws Vin said. sockets, said screws having conical inner ends to engage the beveled lower ends of said shanks, whereby said adjusting plates are actuated to adjust said false bottom.

3. In a loom of the class described, a batten having formed therein a channel and a series of right angular passages connected with said channel, a false bottom arranged below the shuttle operating mechanism of the loom, a series of adjusting plates arranged on said false bottom, shanks extending' from said plates into the vertical portions of said passages in said batten, said shanks having beveled lower ends and adjusting screws screwing through the lateral portions of said passages against the beveled ends of said shanks to adjust the adjusting plates.

in testimony whereof I have hereunto set my hand in presence ot two subscribing witnesses.

SOLOMON KENDRICK.

Vlitnesses J. A'. OURTIN, HERBERT MCDONALD.

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