Monaural stethoscope, wood, min-nineteenth century. Mechanic's stethoscope used for listening for wear in engine bearings. Monaural stethoscope
Magnesia section wrapped with canvas, with two black lacquered steel bands Magnesia section wrapped with canvas
Drawing associated with the Model Pelton Wheel drawn and used by the model maker Peter Kock Modewerk, Coln, Nippes 1912 Drawing associated with the Model Pelton Wheel drawn and used by the maker Peter Kock Modewerk
Various high speed gas and diesel engine indicators, and pressure indicators in boxes and otherwise. Nickel plated, look similar to steam engine indicators but with smaller drums. engine indication
Two glossy prints, 9" x 7", Ruths steam accumulator Installation at Charlottenburg Power Station:- (a) Installation under construction, (b) Closer view of Accumulator Shells ( Model see 1929-253) Two glossy prints, 9" x 7", Ruths steam accumulator
Short piece of pipe covered with fossil meal non-conducting composition Short piece of pipe covered with fossil meal non-conducting composition