| 摘要 |
A fluid-operated vise having a pair of extendible pistons to which is attached a front plate and which forms a subassembly that can be easily and positively retracted by simple spring means, thus resulting in an axially compact vise. The two pistons need not be attached together at their rear ends and as a result, it is unnecessary to hold any critical tolerances between the parts or parallelism between the pistons.
|
