GB279996A - A proportional ruler for measuring distances in given proportion to each other from a fixed point - Google Patents

A proportional ruler for measuring distances in given proportion to each other from a fixed point

Info

Publication number
GB279996A
GB279996A GB2399026A GB2399026A GB279996A GB 279996 A GB279996 A GB 279996A GB 2399026 A GB2399026 A GB 2399026A GB 2399026 A GB2399026 A GB 2399026A GB 279996 A GB279996 A GB 279996A
Authority
GB
United Kingdom
Prior art keywords
disc
proportional
fixed point
measuring distances
given proportion
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
GB2399026A
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.)
DAVID HENRY MILLWARD
Original Assignee
DAVID HENRY MILLWARD
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 DAVID HENRY MILLWARD filed Critical DAVID HENRY MILLWARD
Priority to GB2399026A priority Critical patent/GB279996A/en
Publication of GB279996A publication Critical patent/GB279996A/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
    • G01B3/02—Rulers with scales or marks for direct reading
    • G01B3/04—Rulers with scales or marks for direct reading rigid

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Measuring Volume Flow (AREA)

Abstract

279,996. Millward, D. H. Sept. 29, 1926. No Patent granted (Sealing fee not paid). Proportional calculators.-A proportional instrument comprises a frame A with a graduated base over which are disposed two pointers B, C adapted to be traversed over the base by the rotations of the shafts D, E on which they are mounted. The shafts are provided with discs F, M, frictionally engaging a disc G, the disc F being at a fixed distance from the centre of the disc G while the distance of the disc M can be adjusted and set to determine the relative speeds at which the pointers B, C are displaced when the disc G is rotated by the knob H.
GB2399026A 1926-09-29 1926-09-29 A proportional ruler for measuring distances in given proportion to each other from a fixed point Expired GB279996A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2399026A GB279996A (en) 1926-09-29 1926-09-29 A proportional ruler for measuring distances in given proportion to each other from a fixed point

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2399026A GB279996A (en) 1926-09-29 1926-09-29 A proportional ruler for measuring distances in given proportion to each other from a fixed point

Publications (1)

Publication Number Publication Date
GB279996A true GB279996A (en) 1927-11-10

Family

ID=10204619

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2399026A Expired GB279996A (en) 1926-09-29 1926-09-29 A proportional ruler for measuring distances in given proportion to each other from a fixed point

Country Status (1)

Country Link
GB (1) GB279996A (en)

Similar Documents

Publication Publication Date Title
GB279996A (en) A proportional ruler for measuring distances in given proportion to each other from a fixed point
GB253249A (en) Apparatus for calculating and scale drawing
SU28352A1 (en) Counting disc for calculating steam distribution values
GB317903A (en) Improvements in line drawing or ruling appliances
GB598167A (en) Improvements in or relating to computing instruments
GB513488A (en) Improvements in or relating to map holders
GB581787A (en) Improvements in combination mathematical instruments
GB448217A (en) Improvements in and relating to devices for measuring the area of plane surfaces
GB298323A (en) An adjustable rule or level for builders' and like work
GB557895A (en) Improvements relating to computers of the slide rule type
GB301314A (en) Improvements in or relating to apparatus for continuously indicating the quctient oftwo variables
GB584532A (en) Improvements in instruments for calculating variations in the altitude of the sun
GB278933A (en) Improvements in vector computing apparatus for aerial navigation and like purposes
GB510220A (en) Combined protractor and calculating device for use in navigational problems
GB170417A (en) Improved triangulation plotter
GB275445A (en) Improvements in drawing apparatus
GB357925A (en) Improvements in drawing and like squares
GB326720A (en) An improved navigational plotting instrument
GB516987A (en) An indicating instrument for use in aircraft
GB345296A (en) Improvements in speed indicating and recording apparatus
GB551072A (en) Improvements connected with parallel rules
GB257119A (en) Improvements in geared indicating mechanism for counting and other metering instruments and apparatus
GB342099A (en) Improvements in apparatus to facilitate instruction in mathematics or the like
FR870801A (en) Measuring instrument for representing measured quantities on a surface graduation
GB268183A (en) An improved instrument for determining and plotting bearings and courses on a chart or the like