GB477023A - Thermially-sensitive measuring or control apparatus - Google Patents

Thermially-sensitive measuring or control apparatus

Info

Publication number
GB477023A
GB477023A GB7734/36A GB773436A GB477023A GB 477023 A GB477023 A GB 477023A GB 7734/36 A GB7734/36 A GB 7734/36A GB 773436 A GB773436 A GB 773436A GB 477023 A GB477023 A GB 477023A
Authority
GB
United Kingdom
Prior art keywords
chain
disc
contact
glycerine
length
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
GB7734/36A
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.)
AUGUSTE JEAN ETIENNE THILL
Original Assignee
AUGUSTE JEAN ETIENNE THILL
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 AUGUSTE JEAN ETIENNE THILL filed Critical AUGUSTE JEAN ETIENNE THILL
Publication of GB477023A publication Critical patent/GB477023A/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
    • G01K5/00—Measuring temperature based on the expansion or contraction of a material
    • G01K5/48—Measuring temperature based on the expansion or contraction of a material the material being a solid
    • G01K5/56—Measuring temperature based on the expansion or contraction of a material the material being a solid constrained so that expansion or contraction causes a deformation of the solid
    • G01K5/62—Measuring temperature based on the expansion or contraction of a material the material being a solid constrained so that expansion or contraction causes a deformation of the solid the solid body being formed of compounded strips or plates, e.g. bimetallic strip
    • G01K5/64—Details of the compounds system
    • G01K5/68—Shape of the system

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

477,023. Thermal switches. THILL, A. J. E. March 14, 1936, No. 7734. Void. Convention date, March 14, 1935. [Class 38 (v)] [Also in Groups XX, XIII, and XXIX] A number of bimetallic elements of U-shape are together to form a chain sc that the individual deformations are added together. The length of the chain may increase or decrease with increasing temperature. The Figure shows a chain 11 protected by an apertured tube 5 and arranged to operate the electric switch of a fire alarm only on sudden in. creases of temperature. The free end of the chain is attached to a conducting rod 12 carrying one contact 13 and an insulating bush 14 on which slides with a friction fit a conducting disc 15 forming the other contact member. The disc 15 is mounted with slight clearance in a cylinder 16 filled with glycerine so that when the chain 11 alters its length slowly the disc 15 is moved with the bush 14 and contact 13, the glycerine passing round the edge of the disc. Upon sudden changes of the chain's length, the disc is held by the glycerine and slips on the bush 14 so that contact 13 and disc 15 come into engagement.
GB7734/36A 1935-03-14 1936-03-14 Thermially-sensitive measuring or control apparatus Expired GB477023A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR799445T 1935-03-14

Publications (1)

Publication Number Publication Date
GB477023A true GB477023A (en) 1937-12-20

Family

ID=9236786

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7734/36A Expired GB477023A (en) 1935-03-14 1936-03-14 Thermially-sensitive measuring or control apparatus

Country Status (2)

Country Link
FR (1) FR799445A (en)
GB (1) GB477023A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2746293A (en) * 1952-06-05 1956-05-22 Sun Oil Co Apparatus for determination of average temperature of fluids in storage

Also Published As

Publication number Publication date
FR799445A (en) 1936-06-12

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