| http://www.w3.org/ns/prov#value | - My invention relates to improvements in rotary engines, and pertains to that type of engines which includes a revolving mandrel or armature carrying a plurality of pistons which through the medium of piston-rods act upon an inclined surface for revolving the mandrel or armature, all of which will be fully described hereinafter, and particularly pointed out in the claims.
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