GB190823238A - Improved Scale for Draughtsmen and for use with a Surface-gauge. - Google Patents

Improved Scale for Draughtsmen and for use with a Surface-gauge.

Info

Publication number
GB190823238A
GB190823238A GB190823238DA GB190823238A GB 190823238 A GB190823238 A GB 190823238A GB 190823238D A GB190823238D A GB 190823238DA GB 190823238 A GB190823238 A GB 190823238A
Authority
GB
United Kingdom
Prior art keywords
inch
scale
divided
helix
slide
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
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.)
WHITE AND POPPE Ltd
Original Assignee
WHITE AND POPPE 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 WHITE AND POPPE Ltd filed Critical WHITE AND POPPE Ltd
Application granted granted Critical
Publication of GB190823238A publication Critical patent/GB190823238A/en
Expired legal-status Critical Current

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  • Length-Measuring Instruments Using Mechanical Means (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

23,238. White & Poppe, and Buswell, E. Oct. 31. Scales.-A measuring-scale is made cylindrical in shape and is divided longitudinally into fractions of an inch say twentieths, B; these divisions are connected by a helical cut D with a pitch of onetwentieth of an inch. The cylinder is divided circumferentially by a number of lines E, drawn parallel to the axis, which intersect the helix D. If there are fifty of these lines E, then starting from the line F at the zero line C, thousandths of an inch may be marked off with dividers. To facilitate reading, a slide G may be mounted over the scale ; this slide, which is rotated by the milled head J, engages a screw-thread H of the same pitch as the helix D and is divided as shown into lengths of an inch adapted when in the normal position to coincide with similar divisions on the zero line C. The scale may be built up of a number of inch units K adapted to telescope into one another so that the scale may be used with a surface gauge.
GB190823238D 1908-10-31 1908-10-31 Improved Scale for Draughtsmen and for use with a Surface-gauge. Expired GB190823238A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190823238T 1908-10-31

Publications (1)

Publication Number Publication Date
GB190823238A true GB190823238A (en) 1909-08-12

Family

ID=32210293

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190823238D Expired GB190823238A (en) 1908-10-31 1908-10-31 Improved Scale for Draughtsmen and for use with a Surface-gauge.

Country Status (1)

Country Link
GB (1) GB190823238A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2585631A (en) * 1946-01-16 1952-02-12 Joseph W Crownover Vernier measuring device
US3140547A (en) * 1961-10-18 1964-07-14 Blommel William Heel jacks

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2585631A (en) * 1946-01-16 1952-02-12 Joseph W Crownover Vernier measuring device
US3140547A (en) * 1961-10-18 1964-07-14 Blommel William Heel jacks

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