US1255635A - Loom-check. - Google Patents

Description

l. T. PROSSER,

LOUM CHECK. AP'PLICATloNfILun sani. 1915.

Patented Feb, 5, 1918.

sha ed uide, the parallel members 9, 10 of which -orm ways for a relatively sliding` frictional member 1l. This frictional meinber may conveniently be made oi wood or other suitable material and may be provided with a Wear plate l2 of leather, liber board or other suitable frictionul material. A bearing member 13 of Wood or other suitable material, preferably rectangular' in form secured between the walls 9, 10 of the channel member, being prevented from longitudinal movements by sets of bolts 14, l5 extend ing across the channel and abutting against the ends ofthe bearing ineinber l'l.

In order to provide for increasing or decreasingjr the frictional engugeuient between the relatively iuoi'uhle members thel member lli desirablv is pressed against the n'iifuilur ll by u spring lll one end nl' which nuiy cou-- veuiently rest iu a recess 1T in the central portion ol' the niernlier llY und the othti i-nd thereof against the head ll ol u screw lll which may be supported in u yolze or bracket 2t) secured lo the. u'alls il, l() ol the guiding channel, the screw lll being provided with u slot 2l at its end by means of which it may be adjusted toward and from the sliding member to provide the desired compression upon the spring; 1G, a set nut 22 providing means for locking the screw 19 in the desired adjustment.

While the mechanisms above described embody a preferred form of my' invention, the details thereof may be varied and any suitable friction adjusting means may be provided as will be readily apparent,

In order that the picker stick may engage a flexible or yieldable member, a check strap 2 5 which may be of leather, canvas, or other fabric is attached to the ends of the slide il' preferably by a bolt 26 extending longitudinally through the slide 1l, the ends of the strap 25 being .secured at one end between the head2? of the bolt und the end of the slide and at the other end between a suitable nut 28 and washer 29 and the opposite end of the slide. This check strap may be of asingle piece'of material or may beef a built u-,p construction as illustrated in the drawing, comprising a continuous member extending rom one end of the slide to the other and a plurality of overlapping shorter members secured thereto. By such constructien pieces of relatively inexpensive matei-r'iial, such as scrap leather, canvas, ber, or other suitable material which will yield gradually or sluggishly without causing the picker stick to rebound may be used, thus providing a ve'ry'economical structure which may be readily replaced, when worn, at a minimum expense. As. a, matter of fact any suitable sluggishly flexible means may be sccured upon tbc slide 11 to be engaged by the picker stick within the scope of my inven tion.

The channel guide and the frictional .members desirably are arran ed in parat lelism with the plane of' osci lation of the piclier sticli and consequently in .arallelism with the path of the shuttle. y this arrangement a uniform frictional engagement is provided between the wear late 12 of the sliding member 1l and the botto :of the channel bar and between the slide )Fiend the frictional member 13 so that a uniform and etl'ective restraint is applied to the picker stick which arrests tbe latter'ifryitliout rebound or locking. Furtherm rc, as the picker stick is restrained equa ly in both directions, its coi) )eration with the shuttle is most elec'tive und the shuttle is brou bt to rest exactly at the desired point. iis is particularly advantageous when my invcntion in used upon looms provided with alitoinatic shuttle replenishing mechanism since in such case it is necessary that the shuttle shall be arrested exactly beneath the hopper or battery in such a manner that thc rings upon thc bobbins which are transferred from said battery to the shuttle will be thrust properly into the recesses in the jaws of the shuttle.

It will be obvious that by reason of the fact that thc channel guide and bracket may be constructed of stamped or drop forged metal, and the frictionul members constructed et rectangular pieces which are easily machined4 the device may be constructed at a minimum ot'eost, furthermore these parts bein.;Y of hard material wear slowly and by reason of their udjustabilityl may be con tiiiued in use indefinitely, the on y portion oi the picker stick needing repair being the clieclt strap, which. as before stated may be constructed of relatively cheap material.

1t will be understood that the embodiment of the invention disclosed herein is illustrative and not restrictive and that various changes in form, size, and proportions of the parts may be made and that other changes within vthe .provisions of a skilled mechanic are within the scope of my invention.

Ilaving thus described my invention what I claim as new and desire to secure by Letf ters Patent is: l. A picker check for looms comprising a rigid guiding member, a rigid slide bar v I mounted thereon, means for causing uniform frictional resistance to the reci procabl y movement of said slide bnr throughout the extent Y of its recprocation, whereby its movement will be gradually checked, and picker stick .engaging members ormedentirely of sluggishly flexible material connected to the slide bar at each end thereof and extending laterally therefrom into the path of the picker stick andv ada ted to bend when engaged by the picker Stic and 55nd?" l 180 ually to check its movement in each manges -of said slide bar overlying said'l'lexible members.

3. Apicker checlrfor looms comprisinga rigid guiding memberfa rigid slide bar reciprocably mounted thereon, adjustable means for causing uniform frictional resistance to the movement of said'slide Vbar throughout the extent of its rcciprocaton,

'whereby the movement of the slide barwill be gradually checked, a plurality of short pieces of flexible scrap material secured to and projecting laterally from the ends of the slide bar adapted to be engaged by the picker stick and a check strap overlying said piece of material and connected at its ends to said slide bar. v l

4. A picker check for'looms comprising ha bracket having members adaptedto er1- gage the side and bottom of the .lay and a dcpendingniember provided with a guideway extending in parallelism with the lay,

a rigid slide bar-reciprocably mounted in when en aged b the icker stick and adually togcheck ils moifement in each gili'ection without causing the picker stick to rebound. f

5. In a loom comprising a'lay, a', picker stick, and means for actuating .the same, a metal bracket secured to the 1a and hav,- ing a. channel extending in parel elism-with the 1a a. slide bar` reci rocablypmountedl' in sai channel, an exten ed bearing member resting upon said slide bar held against movement longitudinally of the channel and movable toward the bottom of the channel; a yoke secured to the walls of said channel resilient. means intermediate said yokeand said bearing member, means for adjusting Y the compression of. said resilient means to adj ustably force the bearing member against:

-the slide bar to press the slide bar against means secured tothe lay .for causing fricsaid guideway, means for causing uniform,l

frictional resistance to the `movement of said slide bar throughout its extent of re-`l ciprocation2 a bolt extending longitudinally through said slide bar, picker stick engaging 'members formed entirely of sluggish flexible material clamped by said -bolt against the ends of said slide bar and eX- tending laterally therefrom into the ath ef the picker stick and adapted to end the picker stick and acheck strap the channel bottom whereby the slide bar will be held f rictionally clamped between said bearing member and .the channel bottom, flexible members 'carried by the slide'f bar at each end thereof to be engaged byV overlying said flexible members.

6. In a -loom comprising a. lay, a. picker'y stick and means for actuatin the sama-a slide bar movable longitudinei ly of thelay,

tional resistance tothe `movement of the slide'bar uniform throughout Vthe range .of said movement, a plurality of short piecesj, of scrap material abutting and projecting' laterally from the ends of the slide bar, a. so

check strap overl ing the said pieces of material at its en s and extending parallel with the slide bar, and a bolt passin through the superimposed ends of the chec strap and lpieces of material, and longitudi- 85 nally through the slide bar, and clamping the whole together.

In testimony whereof, I have name to this specification.

ISAAC T. PROSSER.

signed my

Images