US1502556A - Cloth-feed interrupter for automatic looms - Google Patents

Description

July 22., 1924. 1,502,556

G. A FRANKLIN CLOTH FEED INTERRUPTER FOR AUTOMATIC LOOMS Filed Sept. 21. 1921 Patented July 22, 1924.

enonen AVERY raanKLIN, or. aueusra, enonerafl oto'rn-rnnn nvrnnaurrnaron euros/te rific LOOMS.

Application filed September 21, 1921. Serial No. 502,287.

terrupters for Automatic Looms, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to cloth feed interrupters, and more particularly to an interrupter used on an automatic loom for arresting the take-up motion so that a filling strip of reinforcing or ornamenting material may be conveniently inserted.

It is one of the essential objects of this invention to provide a simple and efficient device of this character, which may be readily applied to a loom in such manner that th pick wheel pawl is thrown out of engagement with the pick wheel so that the take-up motion is interrupted for a predetermined number of picks, in accordance with the desire of the operator.

Further objects of the invention will ap pear as the following specific description is read in connection with the accompanying drawing, wherein The figure shows an elevation of the preferred embodiment of my invention and while the present structure is more particularly adapted for a standard Northrop loom, I wish it understood that the same principle or broad idea, which is herein involved, may be applied with slight changes to other types of automatic looms, and I do not wish to be, in any sense, restricted by the particular construction shown, or in any other manner except as limited in the subjoined claims.

In order that the invention may be better understood, I have shown several parts of the Northrop loom, 1 indicating the cloth roller stand; 2 the pick wheel which is journaled thereon; 3 the pick wheel pawl which is operated in the usual manner by parts not shown, and 4 and 5 the cam shaft and the filling cam follower respectively.

Bolted to the cloth roller stand or otherwise secured thereto is an arm 6 having j ournaled upon a stub shaft 7 in its outer end, a ratchet wheel 8, which is actuated, as will be hereinafter described, by a pawl 9 pivoted upon the filling cam follower 5. This r h h el is heldagainst re r g e movement by. means of a pawl 10, normally held in engagement with the teeth of the wheel by a spring 11, connected to the arm 6, and to the pawl 10, as shown. The ratchet wheel 8 carriesa stud 12 which in practice preferably carries an anti-friction roller, and is adjustable toward and away from the axis of the ratchet wheel for a purpose to be hereinafter described. This stud, at certain periods, wipes over an arm 13 pivotally and adjustably mounted at its opposite end upon the frame of the loom, as shown at 14. The arm is connected to the engaging end of the pawl 3 by a link 15, as shown.

In the operation of the device the filling cam follower, which is pivoted to the frame of the loom, as is usual, rises and falls with the rotation of the cam 16" on the shaft 4. As the follower rises the pawl 9 rides idly over the teeth and as the follower is lowered the pawl positively engages the teeth and rotates the wheel 8 a predetermined distance. I/Vhen the stud 12 engages the arm 13 it depresses the same, carrying with it through the instrumentality of the link 15, the engaging end of the pawl 3 thus withdrawing said pawl from engagement with the pick wheel and thereby interrupting the take-up motion for a required number of picks until the arm 13 is released by the stud 12, at which time the pawl 3 will re-engage the pick wheel and actuate the same by the usual mechanism as before. During the interruption of the take-up motion a filling strip may be inserted in the usual manner. This filling strip may be for the purpose of reinforcing the fabric or it may be for ornamenting the same, as will be readily understood, the bodyof the fabric between the filling strips being thin and loosely beaten By adjusting the stud 12 toward and away from the axis of the wheel 8 a longer or shorter engagement of the stud with the arm 13 may be obtained, thus, shortening or lengthening the interruption to the cloth feed, as is found desirable, and making it possible to insert one or more filling strips to obtain the type of cloth desired.

I claim 1. In a take up interrupting attachment for looms, the combination with a pick wheel and an actuating pawl therefor, a rotating member, means actuated in the operation of the 100m for intermittently rotating said member, an arm pivoted to the loom, a stud radially adjustable on the rotating member for displacing the from it's normal "position, and an operative connectlonbetween 2. In a take up interrupting attachment for looms, the combination with arpick wheel and an actuating pawl therefor, a"ro,,t-ating member, cam actuated means operated in the operation of the loom for intermittently i170 tating said membel'g a:studfradiallyjidjlistable upon said rotating member; a ,alf'inpivoted to the loom and lying within the path of the stud so as; to be intermittently actuated thereby and a link connecting an intermediate part of the arm and an intermediate part of the pi'clnwheelpawl whereby when the 20 arm isdepressed the pawl Will beheld out of operative engagement with the pick Wheel for a predetermined period. 7

In testimony whereof I aifix my signature in the presenceoit' two witnesses.

. G ORGE AVERYFRANKLIN.

)7 i. H, it L BBENNE a -l-HLeRRIETr iSiIeNEIn D.

Images