TY - JOUR
AU - Ltd., Elliott Brothers (London)
AB - New Instruments, Materials and Tools The Editor invites manufacturers of instruments and light machine tools to keep him irlformed of their new 01 +Wad products. The Institute of Physics assumes no responsibility for the statements given below, information fm these hut been taken from literature supplied. Apparatus for Calibrating and Testing Thermometers. control. According to the makers, satisfactory temperature regula- G, H. W. Cashmore and Co., Ifj Ba1ham ill, London, tion of industrial processes can be exercised, in the majority Of cases, by ' on-off ' or ' high-low ' operation, whereby the source of S.W. 12. heat is continually fluctuating between upper and lower limits, The thermometer testing bath shown in Fig. I was designed by which are sufficiently close to each other to ensure that tempera- Grace and Hall* ofthe National Physical Laboratory. It is supplied ture variation in the controlled medium or substance is extremely in four foms, for use with acetone, water, oil or molten salt as the small. liquid medium, so that temperature ranges from -60" to + 650" C. The mechanism of the 0-type regulator is operated by a small may be covered. ZOO/Z~O V. or electric synchronous motor suitable for either Each 
TI - Automatic Temperature and other Regulators
JF - Journal of Scientific Instruments
DO - 10.1088/0950-7671/23/3/409
DA - 1946-03-01
UR - https://www.deepdyve.com/lp/iop-publishing/automatic-temperature-and-other-regulators-a0PVycIwGj
SP - 61
VL - 23
IS - 3
DP - DeepDyve
ER -