US1066849A - Tension device. - Google Patents

Description

G. RYDEN. TEN 10N DEVICE. Arrmou'lo rI-isr'JULY 1s. 1910;

l 1,066,849. Patented July 8,1913.

2 SHEETS-SHEETI.

rC. R'YDEN.

TENSION DEVICE.

APPLICATION FILED JULY 13, 1910.

Patented July a, 1913.

2 SHEETS-SHEET 2.

Mr/visse@ A, @mi 4. f @mw rocosas.

` CLAES RYDLEN, PROVIDENCE, RHODE ISLAND, ASSGNOR TO UNIVERSAL WI-NDINGI PA'rENT onirica.v

CME'ANY, 0F PORTLAND, MAINE, A CORPORATION 0F MAINE.

TENSION DEVICE.

Paoli (wh-0m #may concern: l

Be it known that CLAES-RYDEN, a citizenv of the United States, residing at Provi. dence, in the county of. Providence and. State of Rhode Island, have invented certain new and useful mprovements i1 ITension Devices, of which the following*- is a specifica-- .this object in view I -make the fingers orrbars' of the members of vitreous material, such as porcelain orcglass, for instance, and my invention discloses a4 novel method of applying the Wearresisting material to the tension elements.

The invention is fully set forth in the fol- I lowingspecitication, illustrated `by the accompanying drawings, in whichi- A Figure 1 is asi-le elevation ofmy im-l proved device assembled on its bracket Fig.

'2, a plan view of the same; Fig. Lan-end elevation looking lnthe direction indicated by the arrow Fig. y1, part sectional on the line e-e; Fig. l, aplan view of one of thetension members removed from the device.

As shown in t-he drawings the tensiondevice consists essentially of twogricl-like elements or members .T and T', each constructed with. a series of parallell bars t and ft and arranged opposite each other with the .bars disposed alternately, See Fig. 3, Preferably,

the tension-member T is hinged on its 'bear-pl ings inthe bracket B Vto adapt it-to Iswing toward and away from the member T', which is fixed on itsbearings, and suitable 4Vmeans are provided to apply pressure to the swinging member to adapt'it to-bear on the' thread or'yarn y as the latterdraws between the two members.

The grid-members Tand T are formed vWith parallel -uprightsj t2, t3 and t4, t5 constructedof Sheetmetaland arranged to sup `:port the horizontal bars tand z'r. The rear Specificationiof Letters yPatent.

Application'led July 13,

uprigbts-i g and t4 have ears't, t and ts, t at the top` and bottom, preferably formed by bending back the stock at right angles to the main portions. Theseears are pierced with holes 1510 through which extends a rod 1' supported the lugs b, L' of the bracket B. The ears t and 7 serve as lhingesfor the member T, to adapt it to swing on the rod r, ,and the upper ear t lis formed with an extension or arm t, see Fig. 4, .which serves as a leverthrough which pressure is applied 'to operate the member. Any 4suitable means might be used 'to exert pressure on the member T, but I have preferred to 'show a cord c secured to the arm t,.'and led over the l Paamteeaulys, 1913. l 1910. serial N0. 571,763.

roll-or pulley p on the bracket B. Fastened to the end of this cord is a rod'd' on which are mounted Weights'w, a suitable number of the latter being applied to give the proper pressure on themember T. The ears (is and 9 of' the `member 1.'I". are also held on the rod 1', and to secure --the member T rigidly on thebracket B I provide a median support tu formed as an extension of the upright t4. The extension!12 is slotted at t and a screw s extends through said slot and into the bracket B, seeFigl.

The outer -uprights t3 and t of the mem- .bers T and T are bent or 'folded longitudinally in angle form, as shown particu'- larly'in Fig. 2,. This V-shaped section gives strength and rigidity-.tothestructure and also provides a further advantageous feature as follows: Vhen the two members are assembled on the'frame B the outer lwings .tu andi, see Fig. 2 Hare out away from each other and forni a V-shaped trough or guidevyay, which serves to assist the thread or yarn 'in entering between 4the members.

'It auxiliary guiding member g for the yarn is also provided at `the bottom ,o f'the ybracket B.l Preferably this is vlformed of wire vvith.. twoprongs g and gg driveninto holes infthelug b", see Fig. 2. The loop of the'pvwire is bent back-upon itself with a comparativebr long slot or threadway g* having diverging extensions g5 and'g" whicl'i form a flaringv opening in continuation of the Vopening between the upright sides ot the tension members. .-The movable tension- 'member T is also provided at its lower end 'with a thread-retaining finger ,t;" which extends across andadjacent the loop of the guide g, see Figs. 1, 2 andfet. This is profwillcut. into the metal and Wear. grooves across the faces of the bars. Thefcontinuf.

` ons friction of the hard fiber drawingv bars 'soon wears a groove 'deeper diameter of .the 4thread itselfg so that thereafterthe thread will* not receive.

' .fthe thread or yarn tzlieatlaring sides of the tension-members it wilkfdraw along the finger t and, acting Wedge the movable member until it passes beyondthe end of the finger. After' the yarn'. rides over the end-.of the finger t'the movable tension-member T -Swings back automatically and the v'ya'.rnlo'cates in As' the .thread or yarn: is 'drawn rapidly upward through-the tensiondevice'it will swing out in a circle or ..balloon away from the spool, bobbin or other' supply located below and the finger t1 .".pre vents it from whipping out from betweenl the 'properpressure bet-Ween the bars. Be; `sides this, these grooves will havel Sharp ledges which are apt to abi-ade and 'sin- .thei'eom serve to v i' the vmetal F35 erably formed flaring wing 1514..

itself and termin t, fthe Crotch' t adjacent-the slot T 'awa' from the fixed' member VT the crotch tls'.

the tension members. Usually the crossrounded sides to to 'the yarn. adaptable from the stock of the upright t? and extends backward' vin'line- Awith the Vthen bent back upon the crook orelbow 'icl'i crossesandfis the guide g. '.llthen :introduced between bars of the tensionmembers V are formedv of .meti il, extend'i ng from the uprights and .struck 'up .with resent a smooth` surface l iile such a structure is for use (with. soft yarns and threads it has been found that' hard threads,V like linen, silk and other similar materials,`

method of applying the wearresisting nia and readily replaced independently of the -manently in their correct relation. A still further improvement 'ofiny new device pro Sent new'bearingsurfaceto the yarn .or -thread so. that even if .wear occurs the de- 'yice may be veasily renewed `withoutapplying new parts so that .it will last almost in- -st-aunch andless liable to breakage.V or inand preventthe material chipping off Where the supporting frames are attached.` Y

InA Fig.

l. one of the bars `isjshown iiil vit betweenrthe uprights 'of the tension-mem'-A lieaded pins or studs f which project .through holes in the upriglits t2 and t* 'andpass t-J 'lheends of the studs f sci'ewl into the terial to the bars of' the tension-members so 1- that if any one bar is broken it'niay be easilyV 7 other bars; and, furthermore, the bars' can .f'

beset in proper alineinent and held per-J' vides means foradjusting the barsto pre# I Hdefinitely. Myv new device is also 'more .5to end' and the. walls are made of sufficient.

the bars vand the enlarged ends add strength` section .tofillustrate the Avmethod of fastening ber.. 'For vthis purpose I make use V of the.

through the bores of the tubular bars t and 'cies and defects I have devised a novel" .jury than other arrangements theretofore, i

The concaved forni tends to cause the'thread 1 b fjure the' finish and impair the strengtliof' upriglits t3 'and t5 and thetwo upright parts .the .thread .so as to 'render it useless forthel .of the frame are thus clamped .tightly y Satisfactory. results; Vcrack and chipfol andv inltime w through-so thatthe bars are very little,

any, more durable than those'not coated..

' fingers or bars havebeen made entirely of porcelain and .attached to' but heretofore such;

rac-tical because' v'the porcelain or. glass being brittle, and stand-the jar and strain in shipment Aor .the hard usage'l in the` .Itl is alsodiflicult to -mold .the fin retain their .proper formand relation after'the glazing or hardening process and iff-the hais :oannot be.' kept in proper alinement' the v eiiciency .of thedevice is impaired. Furthermore,

lvices when one finger or requires replacing the Whole setto repair To overcome thesev insuflicienf In .some cases the purpose yttor-which:it 'is intended.v i

Various.

terials, but these .have no The coating is ap the Vtension frames, structures have notbeen p easily broken,l would not mills.` gers and have themv the device.

attempts have been n'iade'toi'eoati 1 inv -'prevnui'sdebar is broken vit against the ends of the bars tand t. 'The indiaineter than that of the .studsso'as to provide for anyv irregularities'iiitheiu form. -l`he -bars being constructed of porcelain, glass orsir'nilarv vitreous material are vliable Atc warp out of shape in hardening, b ut by providing this'` slight. slide easily over readily 'interchangeable' without fitting.' lf

it. may be 'easily replaced by removing its stud and substituting a new bar. Furthermore, if the bars `b ecomeworn after con- -newbearing sur-face to the yarn' by 'simply loosening slightly. lt Will be observed that. such :idjustinents can be made many times `before theA barsV will be worn or scored throughout `.their entire circumferences, land eventually new bars .may bev applied so that the dei-ice -is practically indestructible.

.lt will be noted from Fig. 3 that.. when the holes in the bars are shownias slightly larger clearance they Awill the studs f and are thus' any, one of the bars vshould crack or break tinued' use they can be adjusted to present 'the studsl and turning them' .l cally resistance to its drat't.-- The rear uprigh'ts tension members arein operative position the bars t and overlap each other slightly, that is, their inner faces are not inthe sameA plan'e. vThis causes the .yarn .y to bend' slight-ly as it passesfacrossthe bars to give ita more or less tortuous courseA and-apply t2 and t* are scalloped orcut awayalong line of the bars and provide a clearance between 'the-'two members T fand T.

The amountof overhang of the bars may beregulated or adjustedby means of asetscrew li passing .through a lugv t -o'n -the 'member T and bearing. on a similarly-dis-` posedrlug-l'f21 o-ii the member T. A-checlr- `nut. 4serves to hold fthe screw against accidental displacement. Bysciewing the setscrewinft-he member' Twill be moved out .aivay'frin the member T sothat `the bars' 'will'overlap to a less extent and therefore "the path of the yarn`y-will have 'less' sinn- A osity'.v This'relieves the tension on theyarn and adjusting. the screw. in the .reverse direction anopposite ett'ectis secured that is, the tension-members will set'fcloservtq" gether 'and a greater degree of tension .is

- plaiiiedi As the thread. Whips andtbalev rqiplied' 1 to the yarn.

Itivill be noted that the bars on the`t\vo.

tension-members are set closer togethervertiattl'ie top of the members than at the bottom. This'is for a purpose ii'owxeX-- loons ott ofthe su i 'il Y it creates aA 'Jressure l l .l l

against thel opposed bars of the tivo' meni-V .bers whiclvtends to causev them. to vibrate Iand chatter.' By placing vthe bars-farther apart at the bottom of the tension members the thread is allowed to travel in a straightei 40 coiiise,'andtherefore there-will be lesstend- 1 encyfor the vwhipping actionto exertV a pressure on the bar s. After the thread passes between the first few bars its tendency to Whip and balloon out is ovei'coiiie and its course is th'en made'gradually more siniioiisV towaid'the top vof the membersto apply the maxii'num degreeof4 tension' required;

My invention provides :impractical and etlieient means for applying Wear-resisting -inaterial vto the tension4inembei's .to secure greater durability' and less liability-to daiir age or breakage.` It. also' contemplates the improvement otadjustability of the. hars' Afor `wear, and replacement of the separate bars oil fingers at slight. expense 'so that vthe device practically indestructible.

lThe. bars 1f and t tmightbefattachcd to tht: ear uprights ti and t* Without the use ot the other upright members lf3 :ind ff to form rombshiiped members vwithl the liars utting edges4 to conform vto the out-1 'the ends of: the bars.

bars. 'l 4. Iii a' tension-dcrime5 the comliiiiationof 10llv across which the' yarn draws, said* liars r spaced prof {ressivel \'Y nearer together from -oiie eiid of the grid to the other iii-a direcprojecting as teeth-. Thisis a v familiar form of tension-members and is adequate for use Where itis not required'to thread the tension device automatically. The arrangement shown in theldrawings is preferable, how

ever, because the outer upright's scrve'as guides, and -when thefthreaderg yaitn is'.I drawn up through the 4guide g ndfa'long;

the; flaring edges of the members-'it willact. l `to swing. open the movable n iemb'er .'an'd draw down on to its pro er seat on"y thelbars:

- Various other. modi cations -niight -be p made in the struct-ure and. arrangement of my device vwithut departing fiio'ir'iA the spirit andscope ofthe invention. A 75 T liereforepwithout' limiting'myselfto the precise construction showin. whatlfclaim ist l. In a tension-meinbenthe combination?? with a frame 'having upright .members t: and t?, of va plurality ofstudsf frojecting 80` .through one of -the uprights ian screwed into the other upriglit,' and hollow'. bars t.. mounted-on the studs with .their ends clamped' between the uprights.'V` 'I' 2. In a tension-device; the-combination S5. with a frame having parallel. side lpieces t2 and?, of a plurality lof bars of lvitreoiis a grid-shaped member '.lhaviiig uprights c und 153, and cross-bars t supported on Said uprigl'its :ind arranged with .the bars spaced liiogiessively neaiertogether front bottom to top of lhe'inembei. in adireciioii corre.

' spondiiig to the .direction of travel Vofthe 1 Y e I A An improved gi'id-meiiiher foi'teiision# devices havingr a series' vof'paralhd 'bars'.

tion corresponding to the dirertioii (it-travel ot' the `varii. i

'.l'n testimoni" whereof l allix'iiiy sig-nature i' iii presence ot' two \\'itiiesses.`

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