US1194898A - Setts - Google Patents

Description

1, @L w. sum. PICI'IING MOTION FOR LOOMS.

APPLICATION FILED OCT. Il, I9l5.

Patented Aug. 15, 41916 .UNITED STATES PATENT formen.

JOSEPH s'rorr, or woncns'rna, AND WILLIAM sToT'r, on snnnwsnunr, Massacmisnrrs. j

PICKING-MOTION EOlR,- LOOMg.

Application iled October 11, 1915. Seal ll'o. 55,152.

To all 'whom t may concern.'

Be it known that we, JOSEPH S'ro'r'r and WILLIAM STOTT, citizens of the United -States, residing at Worcester and Shrewsbury, county of Worcester, State of Massachusetts, have jointly invented a new and useful Picking-Motion for Looms, of which the following is a specification.

The principal ob'ect of this invention is to provide a simpl' ed form of picking motionv of a more durable character than-'those now in use; also to provide a'construction in which the motion which corresponds most nearly with the usual picker stick motion shall be performed by a lever which does-not have any solid means secured to it that directly engages or operates the shuttle so that the Shock of operation will met be transmitted directly to this member; also to provide improved means whereby the shuttle-is ejected positively and the lever for causing4 this operation returned to normal position yieldingly and in which the shuttle ejecting operation can be performed readily and more than once during each operation of the actuating' shaft without providing the same with any complicated cam or crank system; and to provide a practical andl durable form of flexible actuating means for 'the shuttle.

:Reference is to be had to the accompanying drawing which is a perspective view of `a preferred` form ofA this invention capable of being applied to a loom but shown without reference to any particular iziype of loom,

We are aware of the fact that exible inembers have been proposedfor useJ sary springs or complication has been. in-

ends of the loom.

troduced'f'by trying to make one actuating means control the iclcing motions -of both purpose of simplifying mechanism employthis principle and at the same time retaming lthe advantageous features thereof 10 is shown. his may be the means for engaginthe end ef a. lever 13 and actuating it. his lever 1s pivotedon i Specification-of Letters *Patent in picking motions, but so far as we are aware they have 'usually been complicated either by unnecest is veryvlargely for the Patented Aug.

a stud 14 parallel with the shaft 11 so that the lever 13 is in a plane perpendicular to the length of the shuttle box 15 and oscillates in that plane. This lever is provided with a spring 16 yieldingly holding it down and with an adjustable stop 17 which limits its downward motion, in this case being shownas resting on a plate 18 for that purpose.

For the purpose of operating the shuttle a flexible connection 20 in the form of a rope, chain or belt is shown. This passes'under a pulley`2l over two pulleys 22 and 23 and around a fourth pulley 24. These pulleys are arranged substantially in the same plane, the pulleys 22 and 23 being off-set from each 'other just enough to avoid interference of ,the different strands of the flexible connection or belt 20. This plane is perpendicular to the plane in which the lever 13 oscillates. I The two pulleys 23 and 24 are arranged at sal substantially the same height so as to cause i essential. The two ends of the belt coming down over these pulleys pass down substan tially verticallya'nd the'one of them which passes over the pulley 22 is connected directly with the operating end of the lever 13. The other oriepasses downbelow this end and up around the'pulley 20 sothat it extends upwardly to the end ofthe lever 13 to which it is secured.

Fixed on the upper strand of the belt 20 is an L-shaped plate 25 to which is fixed ya icker 26 which may bes 'of the usual raw liide construction. This plate 25 is preferably of sheet metal and guided by the picker rod 27 in the usual position. The end of the picker is adapted topengage the shuttle 30 and yeject it from the bo The operation ,of the device will'be obvious from what\has been said and it is as follows :;-If the shaft 10 `is provided with tive end of the levert- 13 will be raised positively twice during each complete rotation of this shaft 1 0. This' results 1n pulling Ithe upper strand of the belt 20 along toward they pulley 23` and causing the picker26" positively to eject the shuttle. When that moftion is completed thespring 16 yiedingly draws the parts back, except the shuttle of,

two of the rollers 12, as shown, the opera- I :Yadav course. to. the position shown, this being limited by the stop 17.

From this it \\'ill be seen that the complications which have been proposed heretofore are very largely done a\vay \vitl1. An exceedingly simple device is secured for operating the picker, eliminating the usual picker stick. power strap and certain connected parts, which are of short durability in practice l? or these are substituted dthe lever 13 which is not nearly as readily destructible as the usual picker stick and can be/made comparatively heavy and strong and consequently has a very great comparative durability. The belt or flexible connection is also added. If made of .rope it is very cheap and if made of leather or a metallic chain is more durable. In either case it involves decided advantages either in first cost or in total cost for a definite period oftime over the parts which are displaced in the ordinary loom. Furthermore, when necessary to' replace it, it can be done in a very simple manner as the removal of the old belt is done almost in an instant and the placing of the new one is a very short operation.

Although we have illustrated and described only a single embodiment of the invention we are aware 0f the fact/that many modifications can be made therein by any person skilled in the art without departing from the scope of the invention as expressed in the claims. Therefore we do not wish to be limited to all the details of construction herein shown and described, but

l. In a picking motionfor a, loom, the

combination with a shuttle'box, of a single Aflexible connection, means for guiding said.

flexible connection to move' parallel with the length of the shuttle box, an arm fixed to said iexibleA connection and `extending into the shuttle box, a picker on said arm ,for

engaging the shuttle, theI two ends of said flexible connection extending from'the shuttle box in the same general direction and one of them having a guide around which it'passes so that its extreme end projectsin y the opposite direction`from the other end,'a lever to which both ends of said iexible connection are secured, to'positively cause thev connection to reciprocate longitudinally in both directions and means for oscillating said lever.

p 2. In a picking motion for one end of a loom, the combination with a shuttle box, of a flexible connection having ay portion thereof located parallel with the length of the shuttle box, a picker connected,.with said portion of the flexible connection to move therewith and extending into the shuttle box for'the purpose of engaging the 'end ,of a

shuttle therein, said flexible connection hav` ing its two ends extending downwardly therefrom, and one of them having a guide around which it passes so that lat the extreme end it extends upwardly and vertically, a reciprocable lever to which both ends of the flexible connection are secured, means for positively moving said end'of the lever in a direction tocause the picker to eject the shuttle from the box, and yielding means for' moving the lever inA the opposite'pdirection.

3. In a picking motion for a loom, the combination of a lever mounted to oscillate, a spring, for normally holding the lever down, a rotatable shaft, means on said shaft for engaging the lever and elevating the operative end of the lever in opposition to said spring, a pulley located below the operative end of the lever on one side, two

pulleys'located above the operative end of the lever, a fourth pulley located substantially in the plane of the last two pulleys and at substantially. the same elevation as one of-them, a flexible connection having both ends secured to the lever, one end passing downwardly therefrom around the first named pulley, the connection extending upwardly on both sides and over the two pulleys and then around the last named pulley, a picker secured to the strand of the iexible connection between the lastnamed pulley and one of the two pulleys, and a shuttle box into which said picker' extends.

4. In a picking motion for one end of a loom, the combination of a lever mounted to oscillate on a horizontal transverse axis, a v

spring for normally holding the lever down, ka rotatable shaft, means 'on said shaft for engaging the leverA twice during each revolu tion and elevatingthe operative end of the v lever in opposition to said spring, an adjustable stop projecting from the bottom of said lever for limiting its downward motion caused by the spring, a pulley located below the operative end of the lever onone side, two pulleys located above the operative end of the lever, a fourth pulley located substan- "and at substantially the same elevation as one of them, all of said pulleys being mountvtially in the plane of'the last two pulleys ed to rotate on axes substantially'parallel'n secured to the strand of the flexible connection between the last named one of the two.pulleys, and a s uttle box into which said picker extends, the length ofthe shuttle box being parallel with the strands of theexible connection withwhi'ch the picker is connected.

then around the last named pulley, a pickery v plulley and, i

5. In a. picking motion for a loom the combination of a lever mounted to oscillate on a i transverse axis, a spring for normally holding the leverdown, a rotatable shaft, means on said shaft for engaging the lever a plurality of times during each revolution and moving the operative end of the lever in opposition to said spring, a flexible connection having both ends secured to said lever, one end extending therefrom in one direction, and the other in the opposite direction and both strands of the iiexible connection then extending in the same general direction, means for guidin said flexible connect-ion and holding it, a plcker secured to one strand of the flexible connection and a shuttle box into which the picker extends.

6. In a picking motion for a loom the combination of a lever mounted to oscillate, a pulley located beyond theoperative end of the lever on one side, two pulleys located on the other side of the operative end of the lever, a fourth pulley located substantially in the plane of the last two pulleys and at substantially the same distance from the lever as one of them, a flexible connection having both ends secured to the lever, one end passing beyond the same around the rst named pulley and then back by the lever to one of said two pulleys and then around the last named pulley, the other end of said flexible connection passing from the last named pulley over the other of said two pulleys and back to the lever, and a picker secured tothe flexible connection between the said last named pulley and one of said two pulleys.

ln testimony whereof we have hereunto set our hands.

JOSEPH STOTT. WILLIAM STOTT.

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