GB539543A - Improvements in and relating to devices for indicating the faulty operation of engines and machines - Google Patents

Improvements in and relating to devices for indicating the faulty operation of engines and machines

Info

Publication number
GB539543A
GB539543A GB69340A GB69340A GB539543A GB 539543 A GB539543 A GB 539543A GB 69340 A GB69340 A GB 69340A GB 69340 A GB69340 A GB 69340A GB 539543 A GB539543 A GB 539543A
Authority
GB
United Kingdom
Prior art keywords
wire
rate
wound
faulty operation
heat
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
GB69340A
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.)
Napier Turbochargers Ltd
Original Assignee
D Napier and Son Ltd
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 D Napier and Son Ltd filed Critical D Napier and Son Ltd
Priority to GB69340A priority Critical patent/GB539543A/en
Publication of GB539543A publication Critical patent/GB539543A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K3/00—Thermometers giving results other than momentary value of temperature
    • G01K3/08—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values
    • G01K3/10—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values in respect of time, e.g. reacting only to a quick change of temperature

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Resistance Heating (AREA)

Abstract

539,543. Pyrometers. NAPIER & SON, Ltd., D., and RAMSAY, F. R. F. Jan. 12, 1940, No. 693. [Class 37] A pyrometer for indicating faulty operation in an engine or machine is arranged at a distance from the part the behaviour of which is to be indicated and is in communication with the said part by a heat-conducting liquid so that a warning indication is given when the temperature rises at a rate exceeding a predetermined value. A metal rod A carried by an insulating member B forming part of a cap C is provided with an insulated sleeve E upon which a resistance wire G is wound. Over this is placed another insulating sleeve F upon which a similar resistance wire G is wound, the wires D, G forming parts of an electric bridge as shown in Fig. 3. Wire G being in direct contact with the source of heat will respond more quickly than wire D to a change of temperature and consequently alter its resistance at a different rate to that of wire D. If the value of the difference in rate is large enough a relay Q will be operated and may operate red and green lamps R, S, the green lamp being biassed.
GB69340A 1940-01-12 1940-01-12 Improvements in and relating to devices for indicating the faulty operation of engines and machines Expired GB539543A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB69340A GB539543A (en) 1940-01-12 1940-01-12 Improvements in and relating to devices for indicating the faulty operation of engines and machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB69340A GB539543A (en) 1940-01-12 1940-01-12 Improvements in and relating to devices for indicating the faulty operation of engines and machines

Publications (1)

Publication Number Publication Date
GB539543A true GB539543A (en) 1941-09-16

Family

ID=9708867

Family Applications (1)

Application Number Title Priority Date Filing Date
GB69340A Expired GB539543A (en) 1940-01-12 1940-01-12 Improvements in and relating to devices for indicating the faulty operation of engines and machines

Country Status (1)

Country Link
GB (1) GB539543A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2420968A (en) * 1944-03-30 1947-05-20 Westinghouse Air Brake Co Hot journal alarm apparatus
US2420969A (en) * 1944-06-09 1947-05-20 Westinghouse Air Brake Co Hot journal alarm apparatus
US2477819A (en) * 1944-03-30 1949-08-02 Westinghouse Air Brake Co Temperature responsive apparatus
US2486753A (en) * 1946-03-29 1949-11-01 Union Switch & Signal Co Hot bearing detector

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2420968A (en) * 1944-03-30 1947-05-20 Westinghouse Air Brake Co Hot journal alarm apparatus
US2477819A (en) * 1944-03-30 1949-08-02 Westinghouse Air Brake Co Temperature responsive apparatus
US2420969A (en) * 1944-06-09 1947-05-20 Westinghouse Air Brake Co Hot journal alarm apparatus
US2486753A (en) * 1946-03-29 1949-11-01 Union Switch & Signal Co Hot bearing detector

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