Improvements in, or relating to, percussive tools
Реферат: 354,807. Percussive tools. RAYNER, G. H. T., 14, Broomhall Road, and RAYNER, P., 37, Ashland Road, both in Sheffield. April 16, 1930, No. 12084. [Class 124.] In a percussive tool in which air supply to the forward end of the cylinder is interrupted if the tool is withdrawn, the end of the valve spring j<1> is made solid to function as the valve j<2>. A piece k, the head of which engages a recess in the face of the valve, has guide arms shaped to allow a free air passage through the space k<2>.
Improvements in or relating to percussion tools
Номер патента: GB632495A. Автор: . Владелец: Individual. Дата публикации: 1949-11-28.