| 摘要 |
385,028. Trollies for electric vehicles. ALEXANDER, R. W., 5, Rafel's Buildings, Kerk Street, Johannesburg, South Africa. Sept. 7, 1931, No. 25080. [Class 104 (iii).] The pulley 2 of an electric trolley is pressed against the conductor 6 by a spring 13 arranged between the pulley holder 1c and the bottom of a sleeve 3 on a bracket fixed to the pole. The holder 1c swivels in the sleeve and its vertical and swivelling movements are limited by a setscrew 11 engaging a slot 10 therein. A cushioning spring 12 is arranged between the end of the holder 1c and the bottom of the sleeve 3. |
