ance till the lever headed bolts, which, y?e are informed, cannot be made on wheel, A,of four or more paddles and a screw are attached, B. floats clear of the valve spindle; the number of pounds in- machines where the bolt is turned to receive the action of The screw, driven by the wind wheel,… … right, downward if to the left. PNEUMATIC SCREW VENTILATOR FOR PASSENGER CARS. adjusting the end screw. The inventor states that actu- The driving wheel is in op- that the lever adds to the load on the valve.' al trials on a running train have proved that the screw will This seems to eration all…
Patents · Improved · Consists · Bolt · Scientific American · Water · Absolute temperature · Swing bar · Cubic foot · Rotary blower · Lower side · Cubic feet · Horse power · Latent heat · Steam engine
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