GB749534A - Improvements in or relating to devices for measuring areas - Google Patents

Improvements in or relating to devices for measuring areas

Info

Publication number
GB749534A
GB749534A GB2663853A GB2663853A GB749534A GB 749534 A GB749534 A GB 749534A GB 2663853 A GB2663853 A GB 2663853A GB 2663853 A GB2663853 A GB 2663853A GB 749534 A GB749534 A GB 749534A
Authority
GB
United Kingdom
Prior art keywords
triangle
curves
hypotenuse
sept
register
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
GB2663853A
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 GB2663853A priority Critical patent/GB749534A/en
Publication of GB749534A publication Critical patent/GB749534A/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
    • G01B5/26—Measuring arrangements characterised by the use of mechanical techniques for measuring areas, e.g. planimeters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Tape Measures (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)

Abstract

749,534. Area meters. HARRISON, J. T., and EUSTACE, S. A. Sept. 6, 1954 [Sept. 28, 1953], No. 26638/53. Class 106 (1). A device for the direct measurement of rectangular areas comprises a triangular sheet of transparent or opaque material marked with a series of hyperbolic curves b extending between the hypotenuse c and perpendicular d of the triangle, the origin e of the curves coinciding with the intersection of the hypotenuse and base of the triangle. The curves denote areas and are marked accordingly, e.g. in marginal portions f of the sheet. A rectangle i to be measured is placed with one corner over the point e of the device and with one side in register with the base of the triangle, whereupon its opposite corner k will register with the curve corresponding to its area.
GB2663853A 1953-09-28 1953-09-28 Improvements in or relating to devices for measuring areas Expired GB749534A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2663853A GB749534A (en) 1953-09-28 1953-09-28 Improvements in or relating to devices for measuring areas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2663853A GB749534A (en) 1953-09-28 1953-09-28 Improvements in or relating to devices for measuring areas

Publications (1)

Publication Number Publication Date
GB749534A true GB749534A (en) 1956-05-30

Family

ID=10246800

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2663853A Expired GB749534A (en) 1953-09-28 1953-09-28 Improvements in or relating to devices for measuring areas

Country Status (1)

Country Link
GB (1) GB749534A (en)

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