GB575995A - Improvements relating to screw gauges - Google Patents

Improvements relating to screw gauges

Info

Publication number
GB575995A
GB575995A GB1655643A GB1655643A GB575995A GB 575995 A GB575995 A GB 575995A GB 1655643 A GB1655643 A GB 1655643A GB 1655643 A GB1655643 A GB 1655643A GB 575995 A GB575995 A GB 575995A
Authority
GB
United Kingdom
Prior art keywords
elements
gauging
heads
balls
screws
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
GB1655643A
Original Assignee
Dudley Ernest Stainton
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 Dudley Ernest Stainton filed Critical Dudley Ernest Stainton
Priority to GB1655643A priority Critical patent/GB575995A/en
Publication of GB575995A publication Critical patent/GB575995A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00Instruments as specified in the subgroups and characterised by the use of mechanical measuring means
    • G01B3/46Plug gauges for internal dimensions with engaging surfaces which are at a fixed distance, although they may be preadjustable
    • G01B3/48Plug gauges for internal dimensions with engaging surfaces which are at a fixed distance, although they may be preadjustable for internal screw-threads

Abstract

575,995. Screw gauges. STAINTON, D. E. Oct. 9, 1943, No. 16556. [Class 106 (ii)] A screw gauge comprises a body portion with an axial aperture and radially displaceable elements mounted in the body portion and adapted to be moved into the aperture against .the action of springs, one set of elements constituting a " go " gauge and the other a " not go " gauge. In Fig. 1, a ring 1 is provided with " go " elements 12, 13 and " not go " elements 14, 15 located in radial slots 2. Peripheral grooves 8 are provided for receiving heads 16 attached to the gauging elements. Movement of the elements to the gauging position is effected manually by pressing opposed heads 16 inwards against the action of springs 23 until balls 30 located in the heads abut face cam washers 28 adjustably secured to the body by screws 27. Sighting apertures 31 in the cover-plate enable the contact points of balls and washers to be viewed. A cover-plate, Fig. 4, with a chamfered aperture 20, is secured to the body by screws, and carries pins 21 adapted to abut edges of the gauging elements to limit their outward movements. In a modification, the gauging members are controlled by a cam ring with " go," " not go," and " neutral " positions. The cam ring surrounds the ring 1 and co-operates internally with balls on the exterior of the heads 16. For checking small screws, the elements 12 are tapered and provided with threads of external form for making line contact with the work-piece. Three or more such elements are required per set. A mounting in which elements 12 may be threaded is described.
GB1655643A 1943-10-09 1943-10-09 Improvements relating to screw gauges Expired GB575995A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1655643A GB575995A (en) 1943-10-09 1943-10-09 Improvements relating to screw gauges

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1655643A GB575995A (en) 1943-10-09 1943-10-09 Improvements relating to screw gauges

Publications (1)

Publication Number Publication Date
GB575995A true GB575995A (en) 1946-03-14

Family

ID=10079434

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1655643A Expired GB575995A (en) 1943-10-09 1943-10-09 Improvements relating to screw gauges

Country Status (1)

Country Link
GB (1) GB575995A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2634508A (en) * 1943-10-09 1953-04-14 Harold George Carmichael Wilso Screw gauge
GB2199663A (en) * 1987-01-07 1988-07-13 Vnii Metrologi Sluzby Standard gauge sets
WO2001057470A1 (en) * 2000-02-04 2001-08-09 National Research Council Of Canada Roundness standard

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2634508A (en) * 1943-10-09 1953-04-14 Harold George Carmichael Wilso Screw gauge
GB2199663A (en) * 1987-01-07 1988-07-13 Vnii Metrologi Sluzby Standard gauge sets
WO2001057470A1 (en) * 2000-02-04 2001-08-09 National Research Council Of Canada Roundness standard

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