US1837926A - Multiple-roller drawing frame with tilting lever weight - Google Patents

Description

Dec. 22, 1931; TQENMESSEA; 1,837,926

MULTIPLE ROLLER DRAWING FRAME WITH TILTING LEVER WEIGHT Filed June 1, 1927 Patented Dec. 22, 1931 STATES ERNST TOENNIESSEN, OF TUBINGEN, GERMALI Y MULTIPLE-ROLLER DRAWING FRAME WITH TILTING LEVER WEIGHT Application filed June 1, 1927, Serial No. 195,862, and in Germany October 9, 1926.

This invention relates to drawing frames for textile fibres and has for its chief object a simplified means for applying even and regular pressure to all the top rollers of the roller pairs including the front top roller,

and for relieving the weight from the second and any succeeding top roller, whilst leaving the weight on the front top roller or alternately for relieving all the top rollers of the weight, one weight and weight hook being sufficient for weighting purposes.

According to the invention a weighting saddle pivots on the front top roller to weight such roller and a middle top roller. The saddle is capable of moving to a point forwardly of the said front top roller and has a weight hook articulated to it, and when the saddle is moved forwardly of such roller the weight hook comes upon a rest, remain- 2;) ing there without lateral movement, the weight thus being taken from the front top roller on which the saddle is pivoted. Weight relief may therefore be effected in two stages, firstly the saddle may he lifted from the middle top roller, and then if desired the saddle may be swung forwardly on its pivot point until the weight hook rests.

The invention as applied to a drawing frame having four roller pairs will now be 9 described with reference to the accompanying drawing.

In the drawing, a weight hook B is provided of curve form as shown having a weight w suspended therefrom. The hook is formed with a nose or stop a and the said weight hook is prolonged at B and by means of the pin 8 is loosely articulated to a saddle 8 one end of which is of arcuate form to rest upon the shaft of the front top roller a.

The saddle s is formed with the hand hold or projection 3 In this saddle 8 there is formed a slot 6 in which slidably fits a pin u which is secured in a further saddle s which is at one end also of arcuate form as described with reference to saddle s, the saddle s pivoting upon the shaft of the second top roller 6. The saddle s is again formed similarly to the saddle s that is to say with a slot 11 in which slidably fits the pin u of a further saddle s which in its turn pivots '(Z' byresting upon theshaft of the said roller of as shown.

As a result of the pin and slot connections described the weight applied to the weight hook B is applied to the saddle s and is transmitted to all the saddles of the series, thus effecting simultaneous weighting of all the top rollers. Moreover this form of connection of the saddles allows easy adjustment of the saddle series to the rollers and theprojecting portion of the saddle ends forming To relieve the weight from the top rollers I b, cand d it is suflicient for "the attendant to grasp the saddle s by the hand hold 8 and lift it forwardlyjoff the frame, that is to say to the left of the drawing. The weight hook B moves also due to the articulation of the said hook and the saddle 8 at 8 and the weight m, which has exerted its pull in the direction of the broken line 3 moves downwardly in proportion to the motion of the weight hook at, until the saddle 8 makes contact with the stop a, when the whole saddle series and the weight hook B are supported on the shaft of the top roller a. A push upon the saddle restores the Weight to the top rollers b, 0 and d.

If it is desired to remove the weight from all the top rollers a, b, 0 and d the stop a is moved to one side or the other. The forward pull of the saddle s will thus allow the weight w and the hook B to descend without interruption until an eye H rests upon a fixed part C of the framework of the apparatus in which the drawing frame is mounted, thus nullifying the pull of the weight a; and relieving the roller 0; aswell as the other rollers 7), 0 and (Z. The upper end of the Weight hook may for this purpose be bifurcatedthe base of the bifurcation being indicated in dotted lines in the drawing-and when the hook finally comes to rest the sadstruction the stop 1 is formed on one of the forks of the bifurcated weight hook and the latter may be laterally movable on its pin .9 so that the stop 7 may not be interposed in the backward or weight-relieving path of the saddle s, or be maintained in position in that path, according to whether the top roller a is to be relieved or not, in conjunction with the Weight relief of the other top rollers.

The application of the invention to a drawing frame having three pairs of rollers will be understood from the foregoing without special illustration. It will be understood that in such a drawing frame, top rollers a, b and 0 only being'present, one saddle flexibly connected as described to the first saddle s, V

will serve to weight the rollers Z) andc, and the provision of such a saddle is deemed to be included in the expression succeeding saddles and further weighting saddles-employed for convenience in the appended claim. 7

' The bottom rollers 1,11, III and Iv shown in the drawing are as usual and are per se not affected by this invention.

I claim V V In a multiple roller drawing frame for textile fibres, a weighting saddle pivoted upon the front top roller to weightsuch roller and a middle top roller, and being capable of movement to a point forwardly of the said front top-roller a weight hook articulated to the saddle, and a fixed part of the apparatus framework constituting a stop upon which stop the said weight hook rests without lateral movement at a determined point of the pivotal-movement of the saddle forwardly pf tllie front top roller, for the purpose'set ort In testimony. whereof I aflix my signature.

ERNST TOENNIESSEN.

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