| 摘要 |
<p>The invention relates to a coupling system for coaxial hoses adapted to feed fluid into hydraulic machines and apparatus and to provide an exit for same, such a system ensuring conveniently and speedily under good operative conditions, a disconnectable fitting of the ends of the input and output pipes respectively on a body such as a union connected in its turn with a supply of a compressed fluid, and with a handtool such as hydraulic shears or pruning-scissors or else a machine-tool such as an air-hammer or a hydraulic machine, to be used on the yard.</p> |
