| 摘要 |
A pneumatic gun for forcibly inserting fixing elements, such as nails, metal staples and the like. The gun has an operating piston, carrying an arm for firing the fixing elements. The arm slides in a cylinder open at one extremity towards a compressed air tank provided in the stock of the gun. The operating piston is moved by a control piston located above the open extremity which, in turn, is operated by a valve, which is actuated by the trigger of the gun and is movable between two extreme positions. The gun is equipped with an efficient safety device and is so constructed that no torsional stress is applied to the compressed air infeed duct; and so that it can be easily locked onto a suitable support.
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