From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Product data sheet for the Burgess Micro Switch, detailing its applications, operation, and specifications.
| Identifier | ExFiles\Box 168a\2\ img246 | |
| Date | 1st July 1936 | |
| Four typical Micro Switch applications: (1) Auto-call warning signal; (2) G-M Laboratories Type E relay; (3) United American Bosch humidistat; and (4) electrical temperature control. BURGESS MICRO SWITCH The Switch of Many Uses The Burgess Micro Switch may be used to advantage wherever the actuating element has small movement, small force, or small total power, and in all cases where accuracy of control is important. It is also highly successful where the switching mechanism must operate in any position, and where vibration is encountered. These characteristics, combined with extreme compactness, light weight, and ruggedness, account for its wide adaption in equipment ranging from sensitive instruments to heavy machine tools. Operating Principle of the Micro Switch The operation of the Burgess Micro Switch depends upon producing an over-center action in the relative forces of two opposing spring systems and causing contacting silver plates to separate or come together with a positive snap action. This occurs when the operating plunger is depressed approximately .001 inch. The pressure necessary is approximately 14 ounces. CONTACTS NORMALLY CLOSED CONTACTS OPEN Typical Micro Switch Applications Thermostats Pressure Controls Water Level Controls Governors Pyrometers Oil Burner Controls Burglar and Fire Alarms Motor Overload Releases Recycling Thermal Contactors Circuit Breakers Limit Switches Relays Production Meters Operation Sequence Controls Stroke Counter Controls Time Delay Mechanisms Vibrators Gauging Devices Tachometers Direction Indicators Five Standard Types The Burgess Micro Switch is furnished in the following five standard types. Red Top — Single Throw, Normally Closed Green Top — Single Throw, Normally Open Blue Top — Double Throw Reset Type (Red Top) — Single Throw, Normally Closed Reset Type (Blue Top) — Double Throw Where it is necessary to have slightly modified characteristics, other Micro Switches can be furnished. Burgess engineers will gladly analyze your problem and make recommendations. Write for price schedule. Mounting Dimensions Printed in U.S.A.—July, 1936. 10M C. F.{Mr Friese} BURGESS LABORATORIES, INC. ELECTRONIC DIVISION, FREEPORT, ILL. New York Office—202 East 44th St.{Capt. P. R. Strong} Chicago Office—111 W. Monroe St.{Capt. P. R. Strong} | ||