GB603650A - Improvements in electrical contact devices for use in pressure operated instruments - Google Patents

Improvements in electrical contact devices for use in pressure operated instruments

Info

Publication number
GB603650A
GB603650A GB2828845A GB2828845A GB603650A GB 603650 A GB603650 A GB 603650A GB 2828845 A GB2828845 A GB 2828845A GB 2828845 A GB2828845 A GB 2828845A GB 603650 A GB603650 A GB 603650A
Authority
GB
United Kingdom
Prior art keywords
contact
secured
spindle
lever
carried
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2828845A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ALAN FRANCIS
COLEY ELECTRICAL INSTR Ltd
COLIN SIDNEY GODDEN
Original Assignee
ALAN FRANCIS
COLEY ELECTRICAL INSTR Ltd
COLIN SIDNEY GODDEN
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ALAN FRANCIS, COLEY ELECTRICAL INSTR Ltd, COLIN SIDNEY GODDEN filed Critical ALAN FRANCIS
Priority to GB2828845A priority Critical patent/GB603650A/en
Publication of GB603650A publication Critical patent/GB603650A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/36—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by curled flexible tube, e.g. Bourdon tube
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/08—Means for indicating or recording, e.g. for remote indication

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

603,650. Actuation of switches. FRANCIS, A., GODDEN, C. S., and COLEY ELECTRICAL INSTRUMENTS, Ltd. Oct. 26, 1945, No. 28288. [Class 38 (v)] [Also in Group XIX] A Bourdon gauge type of pressure-operated instrument comprises a pair of electrical switch contacts of which one contact is secured directly to the Bourdon tube and the other contact is mounted for adjustment by a control member which is operatively coupled to this second contact. A flat plate 28, Fig. 1, forms one contact of the switch and is mounted on a resilient arm 29, which is secured to the free end of the Bourdon tube 13 by an electrically insulating glue or, if the tube is suitably insulated, the arm 29 may be brazed thereto. The second contact 32 is of domed form and is adjustably mounted in a support 33 carried by an arcuate spring 34, the other end of which is secured to an insulated support mounted on an arcuate lever 36. The support 33 abuts against an insulating block 38 carried by the lever 36 which has a pivotal mounting 37 and may be moved to adjust the domed contact 32 by rotating a spindle 44 connected to the end of the lever 36 by a pin-and-slot mechanism. The spindle 44 carries a knob and pointer with which is associated a setting scale (not shown) which is separate from the main scale of the instrument, the latter being associated with a pointer on a spindle 19 driven by the end of the Bourdon tube through a toothed quadrant mechanism. In a modification, Fig. 3, the contact 32 is secured to a slidable mounting 58 which is loaded by a light spring and carried on an insulated base 54 having a pivot 37, adjustment being effected by a system of levers interconnected by pin-and-slot mechanisms. The gauge may be used to effect a control of the pressure or temperature which it indicates.
GB2828845A 1945-10-26 1945-10-26 Improvements in electrical contact devices for use in pressure operated instruments Expired GB603650A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2828845A GB603650A (en) 1945-10-26 1945-10-26 Improvements in electrical contact devices for use in pressure operated instruments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2828845A GB603650A (en) 1945-10-26 1945-10-26 Improvements in electrical contact devices for use in pressure operated instruments

Publications (1)

Publication Number Publication Date
GB603650A true GB603650A (en) 1948-06-21

Family

ID=10273263

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2828845A Expired GB603650A (en) 1945-10-26 1945-10-26 Improvements in electrical contact devices for use in pressure operated instruments

Country Status (1)

Country Link
GB (1) GB603650A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2191635A (en) * 1986-06-13 1987-12-16 Veglia Borletti Srl A manometer with a device for indicating insufficient pressure
GB2276453A (en) * 1993-03-23 1994-09-28 Graco Inc Pressure gauge with indicator switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2191635A (en) * 1986-06-13 1987-12-16 Veglia Borletti Srl A manometer with a device for indicating insufficient pressure
GB2276453A (en) * 1993-03-23 1994-09-28 Graco Inc Pressure gauge with indicator switch

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