The form, construction, or other features of the casing, frame, or bed-plate which supports the various elements necessary to form a complete internal-combustion engine and maintains them in proper operative relation with one another and includes such constructions of the cylinder as relate to the means of attachments to the bed.
SEE OR SEARCH CLASS
74, Machine Element or Mechanism,
606+,.
92, Expansible Chamber Devices,
146+, for a plurality of unitarily mounted cylinders or frame therefor for an expansible chamber device, subclass 161 for a support or frame for an expansible chamber device, and subclass 261 for a crankcase, per se, for a crank associated with an expansible chamber device.
