Lever Spring Safety-valve

| View Cart ⇗ | Info

A form of spring safety-valve, in which a series of bent springs h h h are placed alternately in opposite directions, their extremities sliding upon the rod i, and the springs being kept down by the crossbar k; a being the valve, c the valve-seat, and b b part of the boiler.




Logan Marshall, Ed. International Self-Pronouncing Reference Library (five vols.) (Philadelphia, PA: International Press, 1911)


TIFF (full resolution)

2400×2075, 455.2 KiB

Large GIF

1024×885, 86.7 KiB

Medium GIF

640×553, 45.1 KiB

Small GIF

320×276, 17.5 KiB