RUTI WARP STOP MOTION
Working principle:
On ruti B loom, the reciprocating motion of the sliding serrated bar is obtained from a grooved cam a fixed on the bottom shaft B. The rod C which is moved up and down by the grooved cam A through the gliding shoe D ,fork E , connecting rod F ,device the slide G to and fro through the arm H and curved lever I fulcrummed in the stud J. The slide G is slotted in the slider K. The motion of the slider bar G is negative as the rod F is driven from the cam through a spring L which compressed whenever the motion of the sliding bar is arrested due to the falling of a drop wire. The stationary serrated bars i.e. slides are fixed to the stop motion bracket. Two round smooth rods M are placed on either side of the serrated bars and warp sheet is taken over these bars. Below these two bars, five similar bars N of smaller diameter are placed to hold the drop wires in between them and prevent undue vibration during working.
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| A=Grooved cam , B=Bottom shaft , C=Rod , D=Gliding shoe , E=Fork lever , F=Vertical rod , G= Slide , H=Arm , I=Curved lever , J=Stud , K=Slider , L=Spring ,M=Smooth rod , N=Smooth rod , O=Collar , P=Lever , G=Latch , R=Sliding lever , T=Draw rod. Fig :( a, b) Ruti B warp stop motion |
The grooved cam and knocking off arrangement consists of a gliding shoe D in the groove of the cam A and the fork E.A collar O fitted in the vertical rod F moves the lever P up and down on its fulcrum so that the latch Q at the end of this lever moves off the stop of the sliding lever R.
Sliding lever R rocks continuously to right and left by means of a nose on the grooved cam A .When the movement of the slide is blocked by a fallen drop wire, the rods C and F cut short half way in their movement. Latch Q will then come in the path of the bottom part of the sliding lever P. The bottom end being locked the upper ends is moved and the starting handle is knocked off through the draw rod T.
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