GB337487A - An improved logarithmic calculator of the cylindrical type - Google Patents

An improved logarithmic calculator of the cylindrical type

Info

Publication number
GB337487A
GB337487A GB2434429A GB2434429A GB337487A GB 337487 A GB337487 A GB 337487A GB 2434429 A GB2434429 A GB 2434429A GB 2434429 A GB2434429 A GB 2434429A GB 337487 A GB337487 A GB 337487A
Authority
GB
United Kingdom
Prior art keywords
sleeve
stock
cylindrical type
scale
log
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
GB2434429A
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 GB2434429A priority Critical patent/GB337487A/en
Publication of GB337487A publication Critical patent/GB337487A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G1/00—Hand manipulated computing devices
    • G06G1/02—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales
    • G06G1/04—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales characterised by construction

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)

Abstract

337,487. Garwood, G. T. Aug. 9, 1929. Slide-rules. -A cylindrical sliderule consists of a stock a provided on its mid-portion with a six-sectioned logarithmic scale' f for co-operation with a cage-like sleeve b carrying a similar scale. At one end of the stock are also scales g, h, i for giving respectively the squares, cubes and anti-logarithms of the values inscribed on the sleeve. At the other end of the stock are two sectional scales j, k graduated in terms of log. sines and log. tangents for similar co-operation with the sleeve. To overcome the difficulty of partial graduations the scale sections are extended at their ends as can be seen in Fig. 2. A cursor l may be mounted on the sleeve.
GB2434429A 1929-08-09 1929-08-09 An improved logarithmic calculator of the cylindrical type Expired GB337487A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2434429A GB337487A (en) 1929-08-09 1929-08-09 An improved logarithmic calculator of the cylindrical type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2434429A GB337487A (en) 1929-08-09 1929-08-09 An improved logarithmic calculator of the cylindrical type

Publications (1)

Publication Number Publication Date
GB337487A true GB337487A (en) 1930-11-06

Family

ID=10210239

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2434429A Expired GB337487A (en) 1929-08-09 1929-08-09 An improved logarithmic calculator of the cylindrical type

Country Status (1)

Country Link
GB (1) GB337487A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2526408A (en) * 1947-02-08 1950-10-17 Chester A Posson Cylindrical slide rule
US2792992A (en) * 1950-05-09 1957-05-21 Arnold B Ellison Computers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2526408A (en) * 1947-02-08 1950-10-17 Chester A Posson Cylindrical slide rule
US2792992A (en) * 1950-05-09 1957-05-21 Arnold B Ellison Computers

Similar Documents

Publication Publication Date Title
GB337487A (en) An improved logarithmic calculator of the cylindrical type
GB316929A (en) Improvements in and relating to drawing apparatus
Hare Description and evaluation
GB561817A (en) Improvements in compasses and the like
GB484852A (en) Improvements in and relating to combined logarithmic calculating and linear measurement scales or scales having equi-distant graduations
CH154664A (en) Installation to transmit speeches, readings, etc. in several languages.
GB342893A (en) Instrument for drawing curves especially conic sections
GB319161A (en) Improvements in protractors
SU28352A1 (en) Counting disc for calculating steam distribution values
GB273601A (en) Improvements in set squares
GB576534A (en) Improvements in or relating to slide rule calculators
GB225621A (en) Improvements in dividers or compasses
GB357925A (en) Improvements in drawing and like squares
GB259112A (en) Improvements in or relating to logarithmic calculating apparatus combined with writing implements
GB243434A (en) Improvements in or relating to rulers
GB278502A (en) An improved parallel ruler
GB314609A (en) Cylindrical slide rule
GB485097A (en) Draughtsman's combination drawing board, tee-square and set-square
GB328455A (en) Improvements in or relating to calculating devices
GB1024425A (en) Improvements in calculating devices
HJG A half-silvered mirror tangentimeter
ES63683U (en) Articulated rule for multiple applications (Machine-translation by Google Translate, not legally binding)
GB178657A (en) Improved device for facilitating nautical calculations
GB456415A (en) Improvements relating to dial-and-pointer indicating means
ES46978U (en) One meter with direct indication of certain surfaces (Machine-translation by Google Translate, not legally binding)