has a tracks have been arranged, so that the heavy pieces ^ 4 » > » three inch objective with focal length of 40 inches. EQUATORIAL STAND FOR SMALL TELESCOPES. may be readily carried to any part of the yard. The The tube, which is of brass, is re-enforced by an inter- Cramps own three small steam… … to operate these acres of machinery, is also one of the To the end of the plug, D. is fitted a cap. F, which Fig. 1.-EQUAT0RIAL STAND FOR A SMALL TELESCOPE. best equipped plants of is held in place, and its kind. It includes made to exert more or extensive hydraulic, less pressure on the pneumatic…
Patents · Torpedo · Munn · Scientific American · Color · Torpedo boats · Ship yard · War ship · Torpedo boat · Perspective elevations · Fly wheel · Water power · Brick dust · Patent office
Internet Archive · Public domain (published before 1931). Free to use for anything.
