| 摘要 |
529,281. Powder distributers. WATSON, A. V., and COOPER-STEWART ENGINEERING CO., Ltd. May 26, 1939, No. 15679. [Class 18] The handle j of a powder distributer has ends movable in guide loops or slots in brackets h and acted on by springs q, the strength of which may be adjusted by altering the position of members p provided with a series of holes s for engaging the handle ends. The handle portions within the slots may be provided with rubber sleeves, and screens f resting on flanges at the sides may be secured by screws passing through holes v.
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