Abstract: A radial, fluid pressure actuated motor having sets of opposed axially aligned cylinders arranged in a spaced relation about a crankshaft, each set of cylinders having a common push rod extending between them. Each push rod has a central Scotch yoke with an elongated slot, the yokes being arranged in overlying spaced relation, the slots being arranged in right angular intersecting relation. A primary or main crankpin extending from the crankshaft extends in journaled but slidable relation through the slots of the Scotch yokes. Fluid pressure is fed into, and exhausted from, each of the cylinders in a predetermined cyclic order, the fluid pressure operating to power, in both directions of travel, axial movement of the push rods thereby imparting continuous rotating motion to the crankshaft via the main crankpin.

Abstract: A radial, fluid pressure actuated motor having sets of opposed axially aligned cylinders arranged in a spaced relation about a crankshaft, each set of cylinders having a common push rod extending between them. Each push rod has a central Scotch yoke with an elongated slot, the yokes being arranged in overlying spaced relation, the slots being arranged in right angular intersecting relation. A primary or main crankpin extending from the crankshaft extends in journaled but slidable relation through the slots of the Scotch yokes. Fluid pressure is fed into, and exhausted from, each of the cylinders in a predetermined cyclic order, the fluid pressure operating to power, in both directions of travel, axial movement of the push rods thereby imparting continuous rotating motion to the crankshaft via the main crankpin.

Abstract: A radial type, fluid pressure actuated (as distinguished from internal combustion) motor comprised of sets of opposed cylinders spaced in alinement and having double-acting pistons reciprocable therein, there being a crankshaft axially centered between the sets of opposed cylinders with the pistons of each set of said cylinders having a common connecting rod extending therebetween, each connecting rod being formed centrally of its ends with a Scotch yoke including a transverse, elongated slot, the yokes being disposed in adjacent side-by-side but right-angular intersecting relation, and the crankpin of the crankshaft extending in journaled but slidable relation through the slots of both yokes, and valves mechanically actuated from the yokes operative to feed fluid pressure to and exhaust the same from the cylinders in a predetermined cyclic order wherein the pistons of each set are simultaneously powered, in both directions of travel, and produce--by means of said connecting rods and yokes--continuous rotativ