.~ Hammer head constitutes or fixed to drive motor cylinder
DEFINITION
Classification: 173/125
(under subclass 90) Apparatus in which the mass of material which forms the hammer head includes an internal chamber which receives the piston of a motor, said internal chamber being adapted to receive motive material to cause the mass of material to move relative to the piston and deliver a blow.
SEE OR SEARCH CLASS
91, Motors: Expansible Chamber Type,
196+, for an expansible chamber motor in which the cylinder necessarily moves, and including a moving cylinder which may be recited as a hammer head.
92, Expansible Chamber Devices,
117+, for a moving cylinder, and including a move cylinder which may be recited as a hammer head. 123, Internal-Combustion Engines,
52.1+, for an internal combustion engine having a moving cylinder, and including a moving cylinder which may be recited as a hammer head.