US1654122A - Tube-frame bracket - Google Patents

Description

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Patented Dec. 27, 1927.

LGS-'M222 UNITED STATES PATENT oFFicE.

.ALBERT A. GORDON, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO CROMITON L KNOWLES LOOM WORKS, OF WORCESTER, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

Application filed December 30, 1926.

This invention relates to brackets form ing the ents oi the yarn, tube trainee used in Amninster carpet looms. Such brackets provide bearings for the outer ends of the yarn spools and also support the chain engaging elem-ents by which the tube traine is attached to the transporting pattern chains.

1t is the object ot :my invention to improve the general construction ot such tube trame brackets, and particularly to improve the provision for positioning a spring hook therein. A further object is to provide an iinproved arrangement `tor securing the spring hoolr to the bracket and ior prcventing lateral displacement thereof.

My invention further relates to arrangements and combinations ot parts which will be hereinafter described and lnore particularly pointed ont in the appended clain'is.

A preferred torna of the invention is shown in the drawings in which Fig. 1 is a front elevation ot a portion of a tube traine, partly in section, and having iny improved bracket attached thereto;

Fig. 2 is an end elevation, looking in the direction of the arrow 2 in Fig. 1;

Fig. 3 is a liront elevation, partly in sec tion, and illustrating the manner of asseniblin g the spring and bracket;

' Fig. 4- is an enlarged sectional view, taken along the line 4.11 of Fig. 1; .and

Fig. 5 is a view .similar to Fig. 17 but showing the parte in a ditterent position.

Roter-ring to the drawings, I have indicated a portion ot a rectangular tulnilar member which :onstitutes a suppfn't for the yarn tubes l1.

ltty iinprmfed tube 'frame bracket cornprises portions '12 and 153 secured within the tubular member 1() by screws '1 /1. The ineniber 12 is substantially L-shaped and the member 13 has an. olliset lower end portion, as indicated at 15. The upright portion of the inenlber 12 is provided with outwardlydisplaced bearing port-ions 16 (Fig. 4c), engaging the member 13 and holding the 1nenibers 12 and 13 in definitely spaced relation. The parts 12 and 18 are permanently se cured together, however, either by rivets as indicated at 17 in. Fig. 4t. or by welding or otherwise securing the parts together.

lthe member 13 is projected upwardly and has a portion 18 :forming a spool bearing and Serial N0. 156,066.

an offset portion 19 adapted to extend be tween the links of a transporting pattern chain C. The member 13 is also provided with. a slot 20 and the oilset portion 19 is provided with a slot 21.

A spring hook 9.2, prehn'abl)T ot double thickness, is so termed that its lower end portion 23 1n ay be passed downward tl'n'ough the slot 21 and rearward through the slot 20 and may be received in the recess E24; (Fig. il), termed between the projections 1o. rThe lower end 23 oit the spring 22 is provided. with an opening 25, and the depending portion of the member 12 is provided with a similar opening 2G. A tapped hole 9.7 is formed inthe nieinber 13 and is aligned with the hole 2G.

ln assembling the parts, the spring 22 inserted in the recess 2st, and a screw 30, having a reduced cylindrical or stud 31, is insel-ted in the tapped hole 27. The portion 31 extends through the opening 9.5 in the spring and into the opening QG in the inernu ber 12. A spring washer 3Q .may be placed on the reduced portion 31 and will be 'forced against the spring 22 to prevent displacenient of the screw 30.

The lower portion 9.3 et the sliring E22 is formed of the exact width ott the slot 20 so that the spring tits snugly therein and is thus held troni lateral displacement while the screw at the saine time prevents longiu tudinal displacement. The upper slot 21 is wider than the spring hook, which is thus free to swing in its upper portion.

The screw 2:30 :is also toifinod ot extra length and projects outward, as imlicnted in liig. 5, to such a position that it nuiv be engaged by a spring stud lli and prevent downward. movement oi." a clutch arlu 3G, it for any reasoii. the spring hook 2?, is 'not detaehml from the chain C.

A stud or stop `37 on the clntch arm 'li normally engages the s infing 22 and pushes the spring back to inoperative position, as indicated in Fig. 5, whenever it is intended to disengage the tube traine from the chain.

I have thus provided a construction in which the hook 22 is very firmly retained in the tube 'frame bracliiet.` and with this construction, accidental displacement ot the hook is rendered practically impossible. ln case et breakage, however, the hoolt is veijv lili? easily replaced by simply removing the screw 30. The spring hook is also held from lateral displacement by the sides of the slot 20, and is free to swing at its upper port-ion in the slot 21.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the' details herein disclosed otherwise than as set forth in the claims, but what I claim is l. A tube frame bracket comprising two rigid frame members, one o't said members having portions up-set thereon effective to space said members apart and to provide a recess between said members and defined at the sides by said up-set portions, a spring hook having its lower end seated in said recess, and means to secure said hook in position.

2. A tube frame bracket comprising a rigid frame having a slot and a recess formed therein, a chain engaging hook extending through said slotand into said recess and means to secure said' hook in position, p0rtions ofsaid hook closely engaging the sides of said slot, and said hook being held from lateral displacement by such engagement.

3. A tube frame bracket comprising two rigid frame members secured together in spaced relation and having a recess formed therein and open at the top only.` and one of said members having a slotabove said recess, a spring hook extending through said slot and into said recess, and means to secure said hook in said recess, a portion of said spring engaging the sides of said slot and said hook'being thereby held from lateraldisplacement.

4. A tube frame bracket comprising a rigid frame portion having upper and lower slots formed therein, and a spring hook extending through both slots and having its lower end portion firmly secured to `said frame portion, said hook iilting eloseliv against the sides ol said lower slot but having substantial side clearance in said upper slot.

A tube frame bracket comprising a. rigid frame portion having a recess` formed therein and open at the top only. a spring hook seated in said recess, and a screw threaded in said frame portion and having a rearward stud projection extending llirongh an opening in said spring hook and into an opening in said iranic portion aligned (herewith and firmly-securing said spring hook in position.

6. A tube frame bracket comprising a rigid frame portion having a recess 'formed therein and open at the top only` a springl hook seated in said recess. and a screw threaded in said frame portion and having a rearward stud projection extending through an opening in said spring hoolrV and into an opening in said frame portion aligned therewith and fir-ml)v securing said saring hook in position. said screw having an elongated threaded head portion extending outwardly to provide a lug for engagement with a portion ot a clutch arm. il the tube frame does not movey downward with said arm.

In testimony whereof I have hereunto al` fixed my signature.

ALBERT A. GORDON.

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