GB546190A - Improvements in measuring instruments - Google Patents

Improvements in measuring instruments

Info

Publication number
GB546190A
GB546190A GB281941A GB281941A GB546190A GB 546190 A GB546190 A GB 546190A GB 281941 A GB281941 A GB 281941A GB 281941 A GB281941 A GB 281941A GB 546190 A GB546190 A GB 546190A
Authority
GB
United Kingdom
Prior art keywords
base
disc
protractor
work
operating
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
GB281941A
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 GB281941A priority Critical patent/GB546190A/en
Publication of GB546190A publication Critical patent/GB546190A/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
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Drilling And Boring (AREA)

Abstract

546,190. Protractors; drilling-jigs. ATKINSON, T. H. March 3, 1941, No. 2819. [Class 97 (iii)] [Also in Group XXII] A measuring protractor instrument adapted for setting out centres for drilling, for gauging &c. comprises a base 10 adapted to be held in position on the work by means of a central bolt taking through an aperture in the work or by means of an enclosing plate clamped to the work. Within the base 10 is mounted for rotation a protractor disc 13 having vernier markings 13a co-operating with angle graduations 12 on the base 10. The protractor disc 13 is provided with a sleeve 20 within which may be adjustably clamped a bar comprising telescopic members 21, 22 both of which are graduated so that the total length can be determined by means of vernier readings 33. The ends of the bar may be provided with lugs 40, 41 having apertures 42 through which drills may be passed for drilling purposes or holders for scribers may be provided. The base 10 may be replaced by a circular housing with a wall surround having gears for operating the protractor disc and in all cases any gears for operating the disc and the relative positions of the rods 21, 22 may be provided with a quick release.
GB281941A 1941-03-03 1941-03-03 Improvements in measuring instruments Expired GB546190A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB281941A GB546190A (en) 1941-03-03 1941-03-03 Improvements in measuring instruments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB281941A GB546190A (en) 1941-03-03 1941-03-03 Improvements in measuring instruments

Publications (1)

Publication Number Publication Date
GB546190A true GB546190A (en) 1942-07-01

Family

ID=9746526

Family Applications (1)

Application Number Title Priority Date Filing Date
GB281941A Expired GB546190A (en) 1941-03-03 1941-03-03 Improvements in measuring instruments

Country Status (1)

Country Link
GB (1) GB546190A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2559966A (en) * 1949-06-13 1951-07-10 John W Joseph Layout vernier
US2607990A (en) * 1951-05-15 1952-08-26 Augustin P Payamps Universal indicator
US3173214A (en) * 1963-10-15 1965-03-16 John G Daller Instrument for laying-out tools and the like

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2559966A (en) * 1949-06-13 1951-07-10 John W Joseph Layout vernier
US2607990A (en) * 1951-05-15 1952-08-26 Augustin P Payamps Universal indicator
US3173214A (en) * 1963-10-15 1965-03-16 John G Daller Instrument for laying-out tools and the like

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