Search Results





Mine drainage. Man in centre left of picture is boring lengths of wood with borers and augers to form pipes. Man on centre ri...
Mine drainage. Man in centre left of picture is boring lengths of wood with borers and augers to form pipes. Man on centre right is working the piston rod of a suction pump to raise water from a mine. In the left foreground are lengths of pipe to be joined, and various internal pump parts. From De r





Draining mine workings by means of a battery of three pumps. The axle, B, is powered by an overshot water wheel. The cams on ...
Draining mine workings by means of a battery of three pumps. The axle, B, is powered by an overshot water wheel. The cams on the axle raise and lower the piston rods by means of tappets. C is the bottom of the pipe which is encased in the basket, D. From De re metallica, by Agricola, pseudonym of Ge





Transformation of vertical movement of the piston rod of a machine without a condenser, in a circular motion, using an articu...
Transformation of vertical movement of the piston rod of a machine without a condenser, in a circular motion, using an articulated connecting rod. . Transformation of the vertical movement of a piston rod of a machine without a condenser, in a circular motion, using an articulated connecting rod.





Draining a mine by means of a suction pump. The man in the top right of the picture is operating the piston of the pump by ra...
Draining a mine by means of a suction pump. The man in the top right of the picture is operating the piston of the pump by raising and lowering the opposite end of the beam to which the piston rod is attached. From De re metallica, by Agricola, pseudonym of Georg Bauer (Basle, 1556) Woodcut





Draining mine workings with a bank of three suction pumps. As the men turn the shaft the cams, B, connect with tappets. A, on...
Draining mine workings with a bank of three suction pumps. As the men turn the shaft the cams, B, connect with tappets. A, on the piston rods, C. From De re metallica, by Agricola, pseudonym of Georg Bauer (Basle, 1556). Woodcut.
Page 1 of 1









