GB555830A - Improvements in and relating to devices for measuring effective diameter of externalscrew threads - Google Patents

Improvements in and relating to devices for measuring effective diameter of externalscrew threads

Info

Publication number
GB555830A
GB555830A GB1574741A GB1574741A GB555830A GB 555830 A GB555830 A GB 555830A GB 1574741 A GB1574741 A GB 1574741A GB 1574741 A GB1574741 A GB 1574741A GB 555830 A GB555830 A GB 555830A
Authority
GB
United Kingdom
Prior art keywords
threads
members
effective diameter
externalscrew
relating
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
GB1574741A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1574741A priority Critical patent/GB555830A/en
Publication of GB555830A publication Critical patent/GB555830A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/38—Gauges with an open yoke and opposed faces, i.e. calipers, in which the internal distance between the faces is fixed, although it may be preadjustable
    • G01B3/40—Gauges with an open yoke and opposed faces, i.e. calipers, in which the internal distance between the faces is fixed, although it may be preadjustable for external screw-threads

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

555,830. Gauging screw threads. ATKINSON, J. Dec. 6, 1941, No. 15747. [Class 106 (ii)] A device for enabling ordinary micrometer callipers to measure effective diameter comprises two parallels 1, 2, each formed of an oblong block of metal or other material, one of which is provided with two truncated thread form ridges 1a and the other with a single ridge 2a whereby the members are placed over the threads to be checked with the ridges engaging them as shown, the device being located between the anvils of the micrometer. The ends of the members 1, 2 may be provided with slots 1b, 2b in which rubber bands or threads 3 may be engaged to hold the members in position, the slots being narrower than the bands. In a modification the parallels are held by spring clips to the anvils and their distance apart adjusted by screws.
GB1574741A 1941-12-06 1941-12-06 Improvements in and relating to devices for measuring effective diameter of externalscrew threads Expired GB555830A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1574741A GB555830A (en) 1941-12-06 1941-12-06 Improvements in and relating to devices for measuring effective diameter of externalscrew threads

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1574741A GB555830A (en) 1941-12-06 1941-12-06 Improvements in and relating to devices for measuring effective diameter of externalscrew threads

Publications (1)

Publication Number Publication Date
GB555830A true GB555830A (en) 1943-09-09

Family

ID=10064763

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1574741A Expired GB555830A (en) 1941-12-06 1941-12-06 Improvements in and relating to devices for measuring effective diameter of externalscrew threads

Country Status (1)

Country Link
GB (1) GB555830A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2554024A (en) * 1948-05-03 1951-05-22 Govoni Enrico Gauge wire holder
WO1994010531A1 (en) * 1992-11-05 1994-05-11 Hyman Jack Kipnes Apparatus for measuring screw threads by 3-wire method
US5317809A (en) * 1992-11-05 1994-06-07 Kipnes Hyman J Apparatus for measuring screw threads by 3-wire method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2554024A (en) * 1948-05-03 1951-05-22 Govoni Enrico Gauge wire holder
WO1994010531A1 (en) * 1992-11-05 1994-05-11 Hyman Jack Kipnes Apparatus for measuring screw threads by 3-wire method
US5317809A (en) * 1992-11-05 1994-06-07 Kipnes Hyman J Apparatus for measuring screw threads by 3-wire method
US5383286A (en) * 1992-11-05 1995-01-24 Kipnes; Hyman J. Hand held device for measuring screw threads by the three-wire method

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