GB984996A - Improvements in and relating to calculating apparatus - Google Patents

Improvements in and relating to calculating apparatus

Info

Publication number
GB984996A
GB984996A GB1346063A GB1346063A GB984996A GB 984996 A GB984996 A GB 984996A GB 1346063 A GB1346063 A GB 1346063A GB 1346063 A GB1346063 A GB 1346063A GB 984996 A GB984996 A GB 984996A
Authority
GB
United Kingdom
Prior art keywords
relating
april
base plate
time taken
calculating apparatus
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
GB1346063A
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.)
CYRILLE ROBERT PHILIPPELAZARE
Original Assignee
CYRILLE ROBERT PHILIPPELAZARE
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 CYRILLE ROBERT PHILIPPELAZARE filed Critical CYRILLE ROBERT PHILIPPELAZARE
Publication of GB984996A publication Critical patent/GB984996A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G1/00—Hand manipulated computing devices
    • G06G1/14—Hand manipulated computing devices in which a straight or curved line has to be drawn from given points on one or more input scales to one or more points on a result scale

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Distances Traversed On The Ground (AREA)
  • Time Recorders, Dirve Recorders, Access Control (AREA)
  • Eye Examination Apparatus (AREA)

Abstract

984,996. Calculating instruments. C.R.P. LAZARE. April 4, 1963 [April 5, 1962], No. 13460/63. Heading G4B. A base plate 1 and transparent arm 4 are pivoted together at 2. By placing the points 3, 5 over map positions and noting the time taken for an aeroplane to travel between these positions the ground speed can be read off on the arm 4 against the time taken as represented by the longitudinal curves on base plate 1.
GB1346063A 1962-04-05 1963-04-04 Improvements in and relating to calculating apparatus Expired GB984996A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR893444A FR82105E (en) 1962-04-05 1962-04-05 Aircraft ground speed calculator

Publications (1)

Publication Number Publication Date
GB984996A true GB984996A (en) 1965-03-03

Family

ID=8776163

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1346063A Expired GB984996A (en) 1962-04-05 1963-04-04 Improvements in and relating to calculating apparatus

Country Status (2)

Country Link
FR (1) FR82105E (en)
GB (1) GB984996A (en)

Also Published As

Publication number Publication date
FR82105E (en) 1963-12-27

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