Twentieth century hand-book for steam engineers and electricians with questions and answers; a practical non-technical treatise .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 874
R WITH AUTOMATIC DISCHARGE ^ALLIS-CHALMERS AIR COMPRESSOR so timed as to positively bring.the valves to their seats justas the piston reaches the end of its stroke, thus avoidingany slip of air back by the valves and also to avoid slam-ming when the piston commences to return. As soon asthe valves… … Fig. 355aib cylinder with mechanical discharge valve—allis-chal-mers air compressor 848 Steam Engineering ihe pressure in the cylinder equals the discharge pressure,when the valves are free to open automatically. In closing,the air between the plunger and valve forms a cushionwhich is so adjusted,…
