GB947191A - An improved method for the manufacture of thermometers - Google Patents

An improved method for the manufacture of thermometers

Info

Publication number
GB947191A
GB947191A GB1561A GB1561A GB947191A GB 947191 A GB947191 A GB 947191A GB 1561 A GB1561 A GB 1561A GB 1561 A GB1561 A GB 1561A GB 947191 A GB947191 A GB 947191A
Authority
GB
United Kingdom
Prior art keywords
bulb
capillary tube
glass
annealing
closing
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
GB1561A
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.)
ENRICO CEVENINI STANZANI
Original Assignee
ENRICO CEVENINI STANZANI
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 ENRICO CEVENINI STANZANI filed Critical ENRICO CEVENINI STANZANI
Publication of GB947191A publication Critical patent/GB947191A/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
    • G01K5/02—Measuring temperature based on the expansion or contraction of a material the material being a liquid
    • G01K5/025—Manufacturing of this particular type of thermometer

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

<PICT:0947191/C1/1> A method of making a glass thermometer comprises forming an open bulb 5 on one end 3 of a glass capillary tube 1 and a larger open bulb 6 on the other end 4, closing the bulb 5 and filling it with mercury or other liquid by way of the bulb 6 and capillary tube 1, closing the bulb 6, annealing the assembly, e.g. at 600 DEG C. and thereafter removing the bulb 6 whilst simultaneously sealing the end 4 of the capillary tube 1. Prior to annealing, a constriction may be formed in the end 3 to make it a clinical thermometer and the scale may be marked by a pen dipped in an ink of vitrifiable enamel, such as metallic oxides dispersed in colophony resin, so that during annealing the enamel of the scale is fused into the surface of the glass and vitrified.
GB1561A 1960-07-05 1961-01-02 An improved method for the manufacture of thermometers Expired GB947191A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4079060A 1960-07-05 1960-07-05

Publications (1)

Publication Number Publication Date
GB947191A true GB947191A (en) 1964-01-22

Family

ID=21912966

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1561A Expired GB947191A (en) 1960-07-05 1961-01-02 An improved method for the manufacture of thermometers

Country Status (1)

Country Link
GB (1) GB947191A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1284658B (en) * 1965-02-20 1968-12-05 Blackman Seymour Norman Glass thermometer
DE1498493B1 (en) * 1964-12-18 1970-12-03 Blackman Seymour Norman Process for finishing a glass thermometer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1498493B1 (en) * 1964-12-18 1970-12-03 Blackman Seymour Norman Process for finishing a glass thermometer
DE1284658B (en) * 1965-02-20 1968-12-05 Blackman Seymour Norman Glass thermometer

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