. The bar is While the general design of the cotton picker allows to prevent hulls, leaves, and twigs from being drawn of a concavo-convex form, and the springs . secured three rows of plants to be harvested at one time, it into the picker, but, as already stated, any small par- can be readily… … a s required. tor. When the instrument is used as a com- The screw is RETAINING DEVICE FOR BARRELS. pass, it is arranged to turn on a pin as a so adjusted pivot. This pin is held in a notch in the A CONVENIENT DRAFTING INSTRUMENT. that the bar lies wholly above the liquid, so as to pre- instrument…
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