. Factory and industrial management. IXTERIOR OF THE HOLLAXO SUBMARINE BOAT. into the compression space with the piston on the upper center. Theflywheel is then turned until the pressure of the charge just starts tomove the piston, when the charge is ignited and the resulting explosiongives sufficient momentum to start the engine on its first cycle. Reversing mechanisms, or as they are more generally known, re-versing gears, are usually a combination of two bevel gears and pinionssimilar to the differential gear on automobiles and traction the engine is driving the boat ahead a cl
. Factory and industrial management. IXTERIOR OF THE HOLLAXO SUBMARINE BOAT. into the compression space with the piston on the upper center. Theflywheel is then turned until the pressure of the charge just starts tomove the piston, when the charge is ignited and the resulting explosiongives sufficient momentum to start the engine on its first cycle. Reversing mechanisms, or as they are more generally known, re-versing gears, are usually a combination of two bevel gears and pinionssimilar to the differential gear on automobiles and traction the engine is driving the boat ahead a clutch fastens both thelarge bevel gears together and the driving is direct and reversing, the pinions between the two large bevel gears turnon their own axes onl\-. being held by a clutch from rotating with the 356 THE OTTO TWO-CVLIXDER FOUR-CYCLE ENGINES, REVERSED BYBEVEL GEARING. engine, and the propeller shaft rotates in direction the reverse of that ofthe engine. Other bnilders use a combination of spur gears, while stillothers employ paper friction cones. Further improvements are the use of universal joints in the pro-peller shaft, thus permitting the engine to be placed with the crank-shaft horizontal and not inclined toward the stern. The use of jump-spark ignition, as on automobile engines, was adopted by one manufac-turer last season, giving greater flexibility in regard to speed. Theproblem of lubrication has been satisfactorily solved by the combinedefiforts of the manufacturer and the oil refiner, and the many minordifficulties have been surmounted until now the gasoline engine is inevery way an ideal motive power.
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Keywords: ., bookcentury1800, bookdecade1890, booksubj, booksubjectengineering
