US1691148A - Tube-frame bracket - Google Patents

Description

Nov. 13,1928. 1,691,148

E. E. CLARK TUBE FRAME BRACKET Filed March 26, 1927 b e/72W I fl/m fzff/ a V%;E?KY

Patented Nov. 13, 192 8.

UNITED STATES "PATENT OFFI E-i EVERETT E. CLARK, or 'woEeEsTEn, uAssAcHus TTs, As srenon To cnomgToN e KNOWLES LOOM wonxs, 0F -WORCESTER, massAc UsETTs, A' conronA Ion or c MASSACHUSETTS.

TUBE-FRAME BRACKET.

.Applicationfiled mar 26, 1927. Serial No. 175 185.

This invention. relates to a tube frame bra cket, such as is commonly usedin Axmlnster carpet looms. These brackets are used for supporting the yarn tubes and spools and for attacl the same to the transport ng pattern chains. v y v v It is the object of my lIlVGlltlOILtO improve the construction of suchtube frame brackets and 'i'particularly to provide an improved form of spring whiehpwill be :morerehable and efiective in use-and less subject to accidental breakage.

My invention further relates to arrangements and combinations of parts which yvill be hereinafter describedandmore PHItlClk larly pointedoutintheappended claims.

Two forms ofithe invention areshown 1n the drawings in which Fig. 1 'is a sectional front elevation ofa portion of atube :t'rame and bracket embodying my improvements;

Fig. 2 is, an end elevation of the bracket,

.looking in the direction of the arrow,,2 ;.1n

Figv V Fig.- 3 is asectionalplanview, takelralong the line 33 in Fig. 1; 1 I

Fig. 4: is a sectional Trent elevation of a modification; and i y Fig. 5 is a sectional plan view, takenalong the line 5--5 in Fig. 4. i v

Be'lerring particularly-to Figs. :1 to 3, I have indicated a portion-etarectangularnnetallic tube frame 10 having .a series of yarn tubes ll secured thereto. Z'Ilnbeiliramebrackets are mounted in eachend of the, tube frame 10 [and each bracketucomprises an'L-shaped bearing member 12 having, an .opening 13 .111 itsiupper end for: the gudgeon ofayarnspool S. A'second or outer. portion 14.01? the bracket is permanently. secured to :the' portion 12 by Welding orother suitablegneans, and has an offset p0rtio1i15 adapted toex:

tend upward between the links 16 ofia transporting patternchain. The lower :end pormember 20 .is displaced inwardly asindt tions 17 and 18 of the members 12 and.lxlar ev offset laterally and extend in parallel relation within the tube frame 10. I

A U-shaped member20 isfitted betweenthe offset portions 17 andi18 .and at its outer ena'd abuts. the inner face of thememberll. The

cated :at 22,. to provide a -bearing for a :cross pin-23 and the upperleg of the member 20 has a reversely.curvedportion 2a to provide a recess 24. for a a purpose to be described.

The member 14 is slotted at 25 and 26 to re ceive asprin-ghook 30 and the member 20 is :slottedat 81 for the same purpose. 1 The hook 30has areverse bend at its lower end and is also olf set laterally .so-that itflpresents :a sub stantially L-shaped-outline when in operative position.- i i The U-shaped memberQO is preferablyper-f manently secured betWeenthemembers 12 and 14$ in some convenient manner as by weldingthereto. .SCIG'WSI33 areprovided to se- 9 cure. the bracket to i the tube frame and these e screws. are preferably.extended intoithe nenn ber QOandgform-an additional-securing means i therefor. i; L

The parts; are assembled :by inserting one end of the spring 3Q-tl1rougl1theslot 2'5 and the. other end of the spring through the slots 26 21114131, pushing the spring inward until the extreme" end of its lateral projection is received in the recess 1 258-. formed byt-he reverse bend vE24. Thecross pin Q3 isithen inserted, retaining the spring sfi-rmly in position.v The; abrupt upward turn of the. spring 3O at the Ipoint 35 provides-a shoulder which engages the cross pin 23 andprevents outward displacement of; the spring.

When-a tube frame is attached to or detached from a;t-ransporting chain, the spring hook 3O'is pushed .awayzfronnthe chain 16 over a substantial range of movement. This repeated bending movement has frequently caused breakage in the springs heretofore.

end ofaspring hook 46. The hook ,46 exe tends'through theslotsAlQ and 43 and is retained .in position by v cross pin 4T inserted tion 49 engaging the upper end of the slot- I chain engaging spring" hook of through the side walls of the tube frame 48, after assembly of the bracket therein. I

The spring 46 has a laterally curved por- 43 and preventing upward displacement of the hook. The spring l6 also has adownwardly curved portionO abutting the cross pin 47 a'ncl'preve iting outward displacement of the spring,after'the pin 47 is inserted. This form of my invention is somewhat simpler than that previously described and retains many of the advantages thereof.

' L-sh'ape formation mounted in said bracket and havlng'lts offset'lower end extending freely a substantial distance within said tube frame .andsecured at-itsinner end in sub'stan' tiaily fixed relation to said tube frame bracket, said spring being free to flex throughout substantially its entire length.

2. In a 10011 a rectangular yarn tube frame, and a tube frame bracket comprising an L-shaped spool-supporting member, an L-shaped chain-engaging member having'upper andlower. slots therein, said members being permanently secured together and having their parallel offset lower end portions ex tending within said tube frame, and a sub stantially L-shaped angularly movable chainengaging hook extending through saidupper' and lower slots and having its lower end extending freely a substantial distance within said tube frame and'positively held from outward displacement.therein, said spring being free to flex througl'iout'substantiallyits entire length. I n

3. In a loom, a rectangular yarn, tube frame. and atube frame bracketcompri'sing an L-shaped spool-supporting member, an

, L-shaped chain-engaging member havingup- )er and lower slots therein said members being permanently secured togetherandhaving their'p'arallel offset lower end portions'ex- (ill tending within said tube frame,'and a chainengagingspring hook of general L-shape formation extending throughthe upper and lower slotsin said chain-engaging member and havingits offset lower portion extended freely a substantialdistance Within said tube frame, andmeans to preventoutward displacement of said springhook, the inner end of said springhook being also held 1n engage 'ment with said bracket within said tube frame, said spring being free to flex'throughout substantially its entire length.

' 4. In a loom, a rectangular yarn tube frame,

and a tube frame bracket comprisingan L- shaped spool-supporting member, an L- shaped chain-engaging member having upper and-lower slotstherein, said members being permanently secured together and having .theirjparallel oii'set lower end portions exshaped spool-supporting member, ;an L- shaped chain-engaging member having upper and lower slots there1n,"sa1d members be ng permanently secured together and having their parallel offset lower end portions extending within said tube frame, and a'substantially L-shaped chain-engaging spring hook extending through said upper andlo'wer slotsand pivotally' mounted at the end of said tube frame'and having its offset lower end extending freely a substantial distance within said tube frame and positively held from vertical displacement therein, said spring 'throughoutits length comprising a single continuous yielding member, and being free tofie'x throughout substantially its entire length. I

' 6. In a loom, a rectangular yarn tube frame, and a tube frame bracket comprising an L- shaped spoolssupporting member,.' an L- shaped chain-engaging member having upper and lower slots therein, said members being permanently secured together and having their parallel offset lower end portions extendingwithin said tube frame, a chain-engaging" spring hook of general L-shape formation'extending through the upper and lowerslots in said chain-engaging member and having its oflsetlower portion extended freely a substantial distance withinsaid tube, I

frame, and means to prevent-outward displacement of said spring hook, the inner end of said spring hookbeingpositioned'inza recess atthe inner endof said "bracket and, being held-undertension'thereby, and said spring being free to flexthroughout substantially its entire length. g

'7. In a loom, a rectangularyarn tube frame, and a tube frame bracket comprising an L- shaped spool-supporting member, an .L- shaped chain-engagingmember having upper and lower'slotsthereimsaid members being permanently secured together and having their parallel oflset'lower end portions ex' tending within said tube frame, a U-shaped spring-retaining member secured between said parallel oii'set portions and having a reversely bent inner end portion, and a chainengaging spring hook having an offset lower end said hook extending through the upper and lower slots in said chain-engaging member and within said tube frame and being retained from outward displacement therein and said spring hook being held under tension by engagement of the inner end of its offset portion with the reversely bent portion of said spring-retaining member, and said spring being free to flex throughout substan'- tially its entire length.

8. In a loom having a rectangular hollow 7 tube frame, a tube frame bracket comprising arigid structure having upper and lower portions extending Within said tube frame, one of said portions having a recess substantially within said hollow tube frame and on the side of said portion toward the center line of said tube frame, said recess facing the open end of said tube frame, and a spring hook mountedin said bracket and having a portion extending substantially within said tube frame and having its inner end seated in said recess, said "spring being thereby held under tension and held from vertical displacement and said spring being free to flex throughout substantially its entire length.

In testimony whereof I have hereunto affixed my signature.

EVERETT E. CLARK.

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