| 摘要 |
The present invention relates to actuating systems using a sealed liquefied gas container in which the gas is typically carbon dioxide. Means are provided for releasing the gas in response to various signals and using it to power a jack for moving a load. The jack shown is supplied with gas from a liquefied gas container having a piercing member for releasing the gas into a pipe (34). The gas enters an annular chamber 37 and causes relative movement between a piston (32) and a cylinder (30). This movement causes links (26), which are pivoted to the cylinder (30) and to the piston rod (33), to lift a load- engaging bridge piece (24) away from a base (25). <IMAGE> |
