Model of a trunk engine, Model of a Trunk Engine, Model of a 150 hp trunk machine or tubular machine placed in a cross section of a ship. No boiler, the propeller shaft is shortened and provided with a two-blade parabolic propeller, the machine can be turned with a crank. The model shows: two horizontal cylinders with tubes, condenser cabinet with four air pumps, two steam valves with double eccentric on the crankshaft and regulator on top of the condenser, steam supply controller on extra eccentric. In this directly working machine, designed by John Penn, the piston was provided with a round pipe, called the trunk, which protrudes through the cylinder and moves in it: the trunk replaces the piston rod and closes the cylinder. The crank is directly attached to the piston in the trunk with a pin and can move up and down with the crankshaft while moving back and forth with the trunk. The whole made the transmission much more compact, so that the machine could be placed in the width of the ship., Petrus van der Loo, Netherlands, 1855, wood (plant material), brass (alloy), iron (metal), h 84.5 cm × w 82.5 cm × d 37 cm
Keywords:
Model, trunk engine, Trunk Engine, 150 hp trunk machine, tubular machine placed, cross section, ship, No boiler, propeller shaft, shortened, provided, two-blade parabolic propeller, machine, turned, crank, model, two horizontal cylinders, tubes, condenser cabinet, four air pumps, two steam valves, double eccentric, crankshaft, regulator, top, condenser, steam supply controller, extra eccentric, directly working machine, designed, John Penn, piston, round pipe, trunk, protrudes, cylinder, moves, trunk replaces, piston rod, closes, directly attached, pin, move up, down, moving back, forth, whole, transmission, compact, placed, width, Petrus van der Loo, Netherlands, 1855, wood, plant material, brass, alloy, iron, metal
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