| 摘要 |
1307773 Telescopic stands STERLING FOUNDRY SPECIALITIES Ltd 2 Sept 1971 [26 Nov 1970] 56330/70 Heading E1A In a seating arrangement comprising a series of mobile platforms or frames of different heights which are arranged for horizontal movement relative to one another for stacking or erection purposes each frame 3 is provided with a load-spreading member 12 arranged in the extended condition to receive the wheel of an adjacent frame. The member 12 may consist of an angle-iron mounted for slight vertical adjustment on the frame 3 and having its surface 13 in contact with the floor in the form of a skid. Each frame has a forward stop 19 and in the stacked condition has a hook 17 which engages a lateral projection 18 on the next lower frame. |
