t is retained securely in the device is easily and firmly secured to the edge of a ta- back through two constantly sealed traps, especially when the required position. A stop pin, C, placed on the sash, ble. At the heel of the blade are formed short projecting the convenient outlet offered by the… … brush handle by its centrally per- latter, so that it clears the pin on being released without be- forated yoke part, B, until it is ing thrown back too far and thus impairing the efficiency of seated at the base of the same on its spring. the brisi e ferrule. The yoke, B, Patented through the…
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