US1842714A - Loom check - Google Patents

Description

Jan. 26, 1932. w. F. CLAYTON oom clrpx 2 Sheets-Sheet 1 Filed July 24. 1951 William} Cl a ylan amlwywmp W. F. CLAYTON LOOM CHECK Jan. 26, 1932.

Filed July 24, 1931 2 Sheets-Sheet 2 I @W%MW Patented Jan. 26, 1932 UNITED STATES WILLIAM F. CLAYTON, F HUNTSVILLE, ALABAMA, ASSIGNOR 0F ONE-THIRD TO WILLIAM E. JAMES, 013 GUL'LMAN, ALABAMA, AND ONE-THIRD TO NEPI-IANUS E.

JAMES, 013 BIRMINGHAM, ALABAMA LOOM CHECK Application filed July 24, 1931 Serial No. 552,967.

This invention relates to loom checks. It is an improvement over the inventions described and claimed in my Patents No. 1,494,992 granted May 20, 1924, and No. 1,6493% granted November 15, 1927.

One of the objects of the invention isto provide a retarder of that type compr sing a sliding block carrying a flexible brake strap against which the picker stick impinges and by which its motion is dampened and quickly inhibited. The present invention provides a construction by which the brake strap is adapted to move slightly against an erzisting lug on the loom, and without necess1tating, to substitute for saidlug, a special brackct having a guiding socket for the sliding block such as is found in my patented constructions.

Another object of the invention is to provide a resilient bracket for yieldingly limiting the deformation of the brake strap in the final movement of the picker stick and thus bringing the latter quickly but without shock to a standstill.

Other objects of the invention relate to specific improvements in the details of construction as described in the accompanying specification and illustrated in the accompanying drawings in which the same reference characters have been employed through out the several figures to designate identical parts, and in which:

Figure l is a plan view of my improved loom check parts being shown in section;

Figure 2 is a vertical section taken along the line 2-2 of Figure 1;

Figure 3 is a section taken along the line 8-3 of Figure 1;

Figure 4; is a section taken ll of Figure 1;

Figure 5 is a perspective view of the resil- ,ient bracket;

Figure 6 is a perspective view of the fiber block;

Figure 7 is a perspective view of the guiding yoke which embraces the sliding block and holds it to the loom lug;

Figure 8 is a side elevation of the loom lug part being broken away to show the sweep stick, the parts being in assembled relation along the line with respect to the sliding block of the retarder; and

Figure 9 is a vertical section taken along the line 9-9 of Figure 8.

Referring nowin detail to the several figures, the numerall, Figure 8, represents the lug ordinarily existing on looms which as shown in Figure 9, is formed with an aperture 2 by means of which it is bolted to a suitable member 3 of the loom. In order to prevent-its moving pivotally, the lug is usually provided with a pairv of offset portions 4 adapted to underlie and closely engage the loom element to which the lug is attached. Thelu g is arranged in proximity to the picker stick, not shown, and affords a convenient support or mounting for any device which may be provided for checking the movement of the picker stick.

In the devices described and illustrated in my patents aforementioned, the ordinary lug was removed and a lug substituted therefor having asocket portion forming a guide for the loom check. A certain item of expense as Well as trouble in installing was involved in the substitution of this special fitting for the old lug, which the present invention seeks to avoid.

A fiber block 5 is arranged against the face of the lug 1, a shim 6 preferably of soft metal intervening. The fiber block 5 is provided intermediately with slot 7 running longitudinally in which is slidably arranged a spacer 8. The spacer is formed with a bolt hole. The block 5 is retained between the shim 6 and a plate 9, the latter preferably being rectangular in shape, and having one of its sides abutting against the loom me1nber3 so as to prevent its rotating. A bolt passes through the plate 9, spacer 8, shim 6 and the depending portion of thelug 1, holding the parts in clamped relation with the fiber block 5 slidable therebetween, the block sliding upon the surface of the spacer.

Figure 7 shows an alternative form of plate 10 corresponding in function to the plate 9. It is however, shorter than the plate 9 so that it does not abut the loom member 3. It is formed. with upper and lower flanges 11 and p 12 embracing theupper and lower faces of the fiber block and having small lugs 13 and 14 which extend beyond the edge of the lug 1 preventing the plate 10 from becoming displaced angularly about the axis of the single bolt by which it is secured. It is obvious that by means of this construction the ordinary lug itself in cooperation with the simple and cheaply constructed plate 9 and spacer 8, with or without the shim 6, constitutes a guide for the sliding-block 5 fully as efficient as the more complicated and expensive device proposed in my prior patents. V j

Figure 6 shows that the fiber block 5 is provided near its ends with apertures 14 forming the points at which the brake strap 15 is secured to said block. The brake strap is preferably formed of heavy although flexible woven fabric bent to form a loop extending into the path of a fixed element of the mechanism, having its ends apertured to receive the bolts 18 and 19 which secure it to the fiber block. A retainer comprising an apertured metal strip 21 having side flanges 22 and 23 is arranged on the bolts 18 and 19 beneath the nuts and embraces 'the'sides of the brake strap adjacent their ends. Y

The brake strap does not differ-essentially from that shown in my Patent No. 1,649,446. It isdistended at one end by a flexible leather reinforcing element 16 secured to one of the bolts which holds the brake strap inplace, and extending outwardly within the loop, against the inner surface of said brake strap.

In the operation of the device, it will be understood that'as the picker stick oscillates back and forth, the larger end of the loop of the brake strap first engages a fixed part of the loom not shown causing the entire retarder to slide along the spacer 8. Then as the fixed element of the loom depresses the looped brake strap, the latter glides with an increasing friction againstsaid fixed element finally coming to a rest. The inertia of the loom check on the return stroke of the picker stick'causes the entire loom check to slide in the opposite direction upon the spacer 8.

A resilient bracket 17, see Figure '1, is provided for receiving the large end of the loop 15, there being a limit to its endwise travel under the action of the fixed loom part which the brake strap engages.

ing

an offset perforated lug 18 clamped beneath the nut of the bolt which'passes through c the spacer 8.

V Saidbracket 17 is preferably formed of a fiat piece of steel havby way of example and not to be construed as limiting the comprehensiveness of the appended claims.

WVhat I claim is: Y

1. Loom check adapted to be secured to a lug on the loom comprising a sliding fiber block having a looped brake strap secured thereto, said fiber block being provided with a longitudinal slot, a spacer slid-ably fitting said slot and being of slightly greaterwidth than the thickness of said sliding block, and means for clamping said spacer to said lug with the sliding block in sliding relation upon saids'pacer.

2. Loom check as claimed in claim 1, including apla'te on the side of said spacer'o'pposite'saidlug, said lug spacer and plate be ing perforated and clampably held together by a bolt .passingthrough the perforations of said members;

3. Loom check as claimed in claim 1,.ineluding a plate engaging said spacer on the side opposite said lug, a wear piece between said lug and slidingblock and a bolt passing through perforations in said lug, spacer and l plate, holding said parts in'clamped relation with said block freely slidable between said plate andwear piece.

4. Loom check as claimed? in claim-1,=in cluclinga plate on the side 'ofsa-id wear piece opposite said lug, said ,plate having 'flanges embracing the upper and lower faces of said sliding block and lugs on said flanges en-v gaging the side faces of said loom lug for preventing angular displacement of said plate.

5. Loom lug comprising a sliding fiber block having a looped brake strap-secured to it adjacent its ends, means for slidably supporting said fiber block, a resilient reinforcer within said looped brake strap for wideningone end of said loop, and a resilient bracket adjacent the widened end of said loop forlimiting the endwise movement of saidloop-and thereby imparting to it substantial rigidity. I

6. Loom check as claimed in claim 5, the resilient 'bracket'being supported upon a bolt passing through the slide articulation between said sliding block" and its support. In testimony wher'eof I afiix my signature. i WILLIAM F. 'GLAYTON.

The effect of the bracket 17 is to progres- -sively increase the resistance of the loop 15 to deflection and eventually to bring it to a state of substantial rigidity adjacent the end of the stroke of the-picker stick.

It is apparent that various structural changes and modifications of the construction.

shown may be made without violating the spirit or scope of the invention and that the illustrated form of the invention is merely

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