| 摘要 |
Apparatus comprising a pump or compressor operated by a pull-cord wound around a pulley ( 9 ), in which the pulley drives a shaft ( 11 ) which drives the pump or compressor, and the pulley is recoiled by means of a retractor type spring ( 32 ), torsion bar or elastic band. The retractor spring is mounted not both co-planar and co-axial with the pulley. The principal may be applied to reciprocating or rotary pumps or compressors, with compressible or incompressible fluid.
|
