US2478763A

US2478763A - Yarn clamp for warp beams

Info

Publication number: US2478763A
Application number: US670807A
Authority: US
Inventors: Kadish Karl
Original assignee: Individual
Current assignee: Individual
Priority date: 1946-05-18
Filing date: 1946-05-18
Publication date: 1949-08-09
Anticipated expiration: 1966-08-09

Description

Aug. 9, 1949. i K. KADJSH 6 YARN CLAMP FOR WARP BEAMS Filed May 18, 1946 INVENTOR.

ZTTORNEYS Patented Aug. 9, 1949 1 T'h'isinvntidn relates to beamsf-on which yarns ,are wound, to be used; for 'i 'ampl'e, asthe warp fina twavi'rig opefaticinftq be 'c arried outon a 165m. More particularly the invention is concfnd'with'abeamprovided with novel means -for' securingin place 'theiends of' theyarns that nets-be wodnd'the'rehn. The new yarn holding means frnaybe readily operated, -1nay be -used fejpeate lly 'i'zvi thoutrequiring repairs or adjust- -rnnt, and; may be installed innew or old beams V t At t e pres nt-tiine, the beams in use cornifionl'y i nclude a wooden core having flangesv at its-ends and the core may have a lengthwise raweruspmsnn in its; surface. A screw 'or ploy ed for securing the endscfthe yarn'to the core have been unsatisfactory *but their use has "continued formally years.

Ihepresent "invention is, accordingly; directed to theZprovision of 'a beam having means. for securing the ends -of yarns thereto, which are not subject to the objections "above setfcrth. The'newsecuring means operate with a clamping action and grip the yarns firmly, but without injury thereto. A'plurality of the new clamping devices are mounted on the core e f the "bain and they are so ins'talled' that, when,.-i-n operative condition, they do not project beyond the surface ofthe be'anij The devices are easily closed and released and they present n'oparts toth'e yarns on which the latter can-become caught. p s 'Fona'loettr understanding of the invention,

fiefer'efice' min "tenses to r the accompanying "arawis arrwneh Fig. 1 is a view partly in elevation and partly in vertical section of a beam embodying the invention;

Fig. 2 is a plan view lot a clamping device used on the beam shown in Fig. 1;

Fig. 3 is a sectional view on the line 3--3 of Fig. 2;

Fig. 4 is an enlarged sectional view on the line 44 of Fig. 1; and

Fig. 5 is an enlarged sectional view on the line 5-5 of Fig. 1.

is driven into the bottom of each depression reclaims. (c152 i2--1'2"5) Tli'e bam illustra'td in'Figfl includes a core .lq usu'ally of -wood, and a.-pair or -flanges. H atl 'qppcsite erl'ds ofithe .core. "The-core isprovided with'a plura ityo-f channels 52in its surface. extending from end to end of the core and tie bolts v i3 are rnounted in a-diametrical pair of thechannelsand extend through the'fianges, thebolts having nuts on theirendsexposed beyond the flanges. I

Clamping devices l 5 are mounted in --0ne of the channels and each device includes a mam- -ber l twof -U shaped cross-section andz preferably made of metal. The 'member 15 -is-seated-in the channel and secured in -place-by- -a=-plurality of screws li whichare threaded-th o r h-opem ings" through the member A I 6 into: the bottom- -of the channel. A clamping bar I 8 :is, pivotally .rnou rted at B9 withinthe;--member =ifinear-one 59nd thereof and the bar has a; rounded bottom 13% an ng-itudi-n'al recesses 42D --in its--opp'osi-te sidesj the walls of thesmember i-tsrnay be slitverticaliy at lfi f-near-their free ends to provide spring fingers il -which are-bent inwardly and enter recesses 29;00 hold--the-barin= clamping position, whenit-isswung downwardly betwee 5 the side 'walls :of member I 6.

At its free end the bari8 isnndercutto provide an overhanging end portion 22, --wh-iehvlies jaboveoneendaofa; lever 23, which is pivota-lly jmoufitdone pin -24,-theends-of *which enter openings in the side walls ofmember -16. The -other end of the-lever projects beyond the end of; n1eniber;l6 -and, when the-bar is in clamping position, the upper-surface of the exposed end of the lever lies at about -the level orf -the tep the sidewalls of; member 1 6.

The clamping devices are-mounted a-row in their channel and *ex-tend from endto end of the core between the flangeswith onlyrsmall 4o spaces betweensuccessive deviees.

A 5 fupward1y and-the ends of the yarns-forming the-first section of the warp are laid acrossthe member I601? the -deviceand-beneath-the bar. {Ijheyarns are spread out along-the member-1 6, after which the bar is swung downwardly be tween the side walls of the member [5 to clamp the yarns between the bar and member. When the bar is forced fully down, the spring fingers 2| snap into the recesses in the sides of the bar to hold the bar in clamping position. When the ends of the yarns in all the sections have thus been clamped to the core, the Winding operation may be started. When the yarns have been unwound from the beam, the clamping devices are exposed and the yarns may be quickly released by operation of the levers 23 of the devices. The beam is then ready to be wound again.

All parts of the clamping devices lie within the channel when the devices are in operative condition, so that, there are no exposed parts on which yarns may catch. In the use of the devices, there is no wear on the core and no damage done thereto, so that a beam provided with the devices may be used for indefinite periods without attention.

The beam illustrated is of fixed length but it will be apparent that the clamping devices may be installed with equal facility in the core of a beam having flanges movable lengthwise of the core to vary the effective length of the beam.

I claim:

1. In a beam having a core with a longitudinal channel, a warp yarn clamp comprising a member of U-shaped cross-section seated in the channel, a clamping member mounted adjacent one end within the first member for pivotal movement about an axis transverse to the first member, the clamping member being movable into and out of the first member, and means on one of the members engaging the other to hold the clamping member within the first member.

2. In a beam having a core with a longitudinal channel, a warp yarn clamp comprising a member of U-shaped cross-section seated in the channel, a clamping member pivotally mounted adjacent one end between the legs of the first member to swing about an axis transverse to said members, the clamping member being movable into and out of the first member, and means on the first member engageable with the clamping member to hold the latter within the first member.

3. In a beam having a core with a longitudinal channel, a warp yarn clamp comprising a member of U-shaped cross-section seated in the channel, a clamping member pivotally mounted adjacent one end between the legs of the first member to swing on an axis transverse to the members and movable into and out of the first member, and spring means on the first member engageable with the clamping member to hold the latter within the first member.

4. In a beam having a core with a longitudinal channel, a warp yarn clamp comprising a member of U-shaped cross-section seated in the channel, a clamping member mounted adjacent one end between the legs of the first member to swing about an axis transverse to the first member and movable into and out of the first member, means on one of the members engaging the other to hold the clamping member within the first member, and means mounted adjacent the free end of the clamping member for swinging said end upward- 1y.

5. In a beam having a core with a longitudinal channel, a warp yarn clamp comprising a member of U-shaped cross-section seated in the channel, a clamping member pivotally mounted within the first member to swing lengthwise thereof and movable into and out of the latter, means on one of the members engaging the other to hold the clamping member within the first member. and a lever pivotally mounted adjacent the free end of the clamping member and operable to swing said end upwardly.

6. A beam which comprises a core having a. longitudinal channel in its surface, flanges mounted at opposite ends of the core, and a plurality of separately operable clamping devices mounted within the channel in spaced relation lengthwise of the core, each device including a member seated in the channel and a second member pivoted on the first member to swing lengthwise thereof and movable to and from clamping relation with the first member.

'7. A beam which comprises a core having a longitudinal channel in its surface, flanges mounted at opposite ends of the core, and a plurality of separately operable clamping devices mounted within the channel in spaced relation lengthwise of the core, each device including a member of U-shaped cross-section seated in the channel. a clamping bar pivoted at one end within the member to swing lengthwise thereof, and means on the member engageable with the bar to hold the latter in clamping relation to the member.

8. A beam which comprises a core having a longitudinal channel in its surface, flanges mounted at opposite ends of the core, and a plurality of clamping devices mounted within the channel in spaced relation lengthwise of the core, each device including a member of U-shaped cross-section seated in the channel, a clamping bar pivoted at one end within the member, means on the member engageable with the bar to hold the latter in clamping relation to the member, and means pivotally mounted within the channel and operable to raise the free end of the bar out of the channel.

9. A warp yarn clamp for mounting within a longitudinal channel in the core of a Warp beam, which comprises a member of U-shaped crosssection adapted to be seated wholly within said channel, a clamping bar pivotally mounted at one end within the member to swing lengthwise of and into and out of the latter, and cooperating means on the member and bar lying below the level of the top of the member for holding the bar within the member.

KARL KADISH.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 223,801 Cumnock Jan. 27, 1880 1,368,415 Tanner Feb. 15, 1921 1,632,472 Gordon June 4, 1927 1,859,051 Richter May 17, 1932