US1844010A - Tension device - Google Patents

Description

Feb. 9, 1932.

L. B. HAsBRoUcK TENSION DEVICE Enea Feb. 1a. 192s jgcj INVENTOR Patented Feb. 9, 1,932h

UNITED STATES PATENT' oFFicE LOUIS B. HASBROUCK, F ELMIRA, NEW YOK, ASSGNORJTO ECLIPSE-TEXTILE l:DE- VICES, INC., 0F ELMIRA, NEW YORK, A` CORPORATION OF NEW YORK TENSION nnvIcEf'Y Application led February 18,11928. Serial No. 255,239.

This invention relates to tension devices, and aims to provide a simple device of this character in which the tension may be varied.

A tension device embodying the invention in the form which I consider most desirable includes two separate tensioning elements, one of which applies pressure to a traveling yarn, and the other ofwhich changes the diiz rection of travel of the yarn.V The two elements of the device are so connected that the tension of the yarn is varied by simultaneously varying the pressure applied byone element, and the angle of the change in di- 13 `rection produced by the other element.

In order that the invention may clearly bc understood, I will describe in detail a specific tension device embodying it, which is shown in the accompanying drawings in which:

F ig. 1 is a side elevation of the tension device showing it adjusted for maximum tension; j

Fig. 2 is a similar view showing an adj ustment for reduced tension; Y

Fig. 3 is a side elevation taken from the opposite side from Figs. 1 and 2; and

Fig. 4 is a plan view showing the supporting frame sectioned on the line 4-4 of Fig. 3. The tension device illustrated includes, in 3i" addition to its Supporting plate60, a horizontal bed 61 having a. vertical arm 62 attached to the plate 60 by means of a horizontal pivot 68, a rotatable tension disc 64 resting on the bed 61 and pivoted on a rod or pin 74 xed to the bed 61, and a tension bar 65 carried by a projection 66 extending laterally from the arm 62. The bed 61 contains slots 61a to permit the escape of any dirt removed fromV the yarn as it passes be- 4"" tween the bed and the tension disc.

To facilitate the threading of the tension device, the bed 61 is provided with ears 67 which guide the yarn into a slot 69 extending under the tension disc 64, and the tension rod 65 is providedwith a bent end portion 70, which extends over the tension disc and beyond the slot 69.v In threading the tension device, the yarn is dropped between the r two ears 67, drawn Vagainst the extension 70 'J0 until it slips under the tension rod 65, and

is then passed over a threadfguide 23. `The lower surface of the tensionv rod 65 lies in substantiallyl the ysame plane as the upper surface of the bed 61, so that, as the yarn slips under the rod .65, italso slips'under the disc 64; Yand afterv the tension deviceis threaded, theyarn-is 'drawn evenly across they upper surface of the bed6l, and then around tension rod 65,.` Y Y j The vtension placed 'on the yarn -is adjusted by varying the angle through whichgthe yarn changers its direction in passingacross the tension rod To reduce thetension, the arm 621is turned -a'boutvthe pivot 63 so as tov increase. the` angle vB betweenv the reach of the yarn traveling toward the tension rod 65 andthe reach of the yarn traveling away from this rod',1 andv at thesame timeto decrease the pressureof the disc 64 by inclining the disc Ipivot rod 7 4 from thevertical. (See Figs. 1 vand 2.) The'arm 62 may be held in any` adjusted position by meansv of a screw 72 passing through a `slot73 inthe arm and entering the supporting; plate 60.- It should benoted-thatvsuch adjustment of thetension does not interfere with the alignment between the upper' ,surfacel ofthe plate 61 and the lower surface of the'tension bar 65.

What Ivclaim is: 1',A l; .f l. An adjustable tension device, comprising cooperating members providing opposed surfaces between which the yarn is drawn,

a rod positioned with one of its sides in ap- Y proximately the same plane withone of said surfaces, a thread guide positioned to guide the yarn from the opposed surfaces across the rod, and means whereby the cooperating members and the rod may tilt to change the angle at which the yarn passes around the rod while maintaining the alignment between one side of the rod and one of the opposed surfaces.

2. An adjustable tension device, comprising a'bed over which the thread passes, a pivot pin fixed on the bed, a tension disc rotatably mounted about the pivot pin, a tension rod positioned with one of its sides in approximately the same plane as the bed, a thread guide beyond the rod and out of said' plane, and mounting means wherebythe bed and the rod may be tilted about an axis in Xed relation to said thread guide to change the pressure of the tension disc and the angle at Which the yarn passes around the rod.

3. A tension device, comprising a frame, a bed secured to said frame over which the thread passes, a pair 'of ears projecting from one side of said bed, a pivot pin rising from the centerof said bed,a tension disc rotatably mounted about Vsaid pivotV pin, a 'rod project;

ing from the frame at the side of the bed opposite to the ears and having its lot\1e r s.urw-A face in the same plane as that of the upper surface of the bed, andfanextension Jromthe' outer end of said rod inclined inwardly toward Vthe ra'n'e fand upwardly to a point directly above the 'tension Vdiscan'd as near the fraffie the'lopenig between 'the `said ears.

2l. A tension device, 'comprising 5a i'xed member, a rne'r'nber piyoted to said fixed member, a gravity press'ur'ela'pplying element mounted 'on said pivoted inenhber,i a :directionchanging element 1nountedf=on-said piyoted member, and -a thread guide fHXed `on said fixed member, `-whereby 'the ti-msio'n on -a thread passing through 'said/gravity pressureapplying'elementla-cross said directionchangingelementand over said thread Vgui-de may be'yaried by pivotal "adjusti'nent ofsa'i'd lpiyoted member with 'respect jto vsaid 'fxed member. f

f5. 'tension device, comprising "pressure- 'applying elements mounted `to pivot /abutfan axis, a directioncha-nging element following said pressureelements in the path "of the thre'ad'andmountd to pivot on jthelisa-me'axis as the pressure elements, -'dageni-"de '-iolrlY "i7- ing "saidV direction-changing element A*and mounted 'in ffxedrclation tothe piyotA-o'f said pressure vand direction-'changing elernnt.

"In testimony 'Whereot'l haie .hereunto set Louis B. HirsBRoUcK.

my hand.

Images