B - Operations – Transporting – 21 – C
Patent
B - Operations, Transporting
21
C
29/51
B21C 43/00 (2006.01) B08B 7/02 (2006.01) B25D 11/06 (2006.01) B25D 17/02 (2006.01)
Patent
CA 1188497
ABSTRACT An impact device, more particularly a needle gun is disclosed. The gun comprises a housing which may be cylindrical and which contains a comparably shaped rotatable member mounted for rotation about an axis parallel to but ec- centric with respect to the axis of symmetry of the cylindrical housing. One or more radially disposed holes in the rotatable member contain balls which are forced outwardly by centrifugal force as the rotatable member is rotated by, for example, an electric motor. Because of the eccentric arrangement there is one angular position at which there is present a relatively large space between the rotatable member and the housing and when a particular one of the holes reaches this angular position the ball screwed in the hole is permitted to move out further from the rotatable member. By arranging elongate impact members or needles with their ends at this angular position the balls are caused to impart energy to the needles and move them longitudinally.
382953
Fetherstonhaugh & Co.
Isenring Fritz
LandOfFree
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