Controlling Swash Plate Engines

P ATENT No. 855,553 shows an engine of the swash-plate type in which both the valve porting and the compression ratio are automatically adjusted to suit the prevailing engine......

Improved Wheel Rims I N Threeand Four-piece Wheel Rims The

heavy lateral forces arising from inflation have to be resisted entirely by the retaining ring, which is heavily loaded in consequence. Patent NO. 854,837 (Steel Stamping, Ltd.,......