Cambridge and Paul Instrument Co
of Cambridge and Muswell Hill, London
1920 Cambridge Scientific Instrument Co took over R. W. Paul Instrument Co to form Cambridge and Paul Instrument Co
1920 Jan. Physical and Optical Societies Exhibition. Exhibitor of electrical instruments.
1920 September. Exhibited at the Machine Tool and Engineering Exhibition at Olympia with CO2 recorders
1921 Supplied a recorder to J. and A. D. Grimond to monitor the reliability of 50 textile looms in their mills[1]
1922 The 'Collins Micro-Indicator for High Speed Engines' was patented in 1922 by W. G. Collins, director of the Cambridge & Paul Instrument Co. A very small piston moved a stylus to engrave diagrams on a small celluloid disc. An solenoid acted to press the stylus against the disc. The diagrams were only about 3mm long, with a maximum height of about 2.5mm, so a magnified image was projected onto a screen using a projector in a readily portable case. [2].
1924 Change of name to Cambridge Instrument Co when it became a public limited company status.
See Also
Sources of Information
- The Engineer of 16th Jan 1920 p62
- The Engineer of 1st October 1920 p333