GB1036408A - Improvements relating to slide calculating devices - Google Patents

Improvements relating to slide calculating devices

Info

Publication number
GB1036408A
GB1036408A GB3794663A GB3794663A GB1036408A GB 1036408 A GB1036408 A GB 1036408A GB 3794663 A GB3794663 A GB 3794663A GB 3794663 A GB3794663 A GB 3794663A GB 1036408 A GB1036408 A GB 1036408A
Authority
GB
United Kingdom
Prior art keywords
tide
slide
lines
feet
dial
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
GB3794663A
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.)
VINCENT JOHN COCHRAN COOPER
Original Assignee
VINCENT JOHN COCHRAN COOPER
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 VINCENT JOHN COCHRAN COOPER filed Critical VINCENT JOHN COCHRAN COOPER
Priority to GB3794663A priority Critical patent/GB1036408A/en
Publication of GB1036408A publication Critical patent/GB1036408A/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

Abstract

1,036,408. Mechanical calculating apparatus. V. J. C. COOPER. Sept. 24, 1964 [Sept. 26, 1963], No. 37946/63. Heading G4B. A slide calculator, particularly for tides comprises a frame having two perpendicularly moving slides 6, 7 one of which carries a rotational index 8. The upper slide 6 is transparent and has a " mean level " line 13 marked on it together with other lines 14 representing the state of the tide. These lines 14 radiate from a point on the " mean level " line 13 and are extended to and under the rotatable dial 8 which is transparent and marked with hours. Lines 15 and 16 represent high and low water respectively. The slide 7 is provided with a linear scale 11 representing the height of the tide. As shown, the calculator is set for a time and place at which high tide occurs at 4 o'clock, local high water is 20 feet and the mean tide level is 11 feet. From this it can be seen that at 6 o'clock the tide will be falling and the depth of water will be just over 15 feet. The dial 8 may be movable horizontally to allow for variations in ebb and flow times of the lines 14 are suitably shaped. An opaque backing may be provided behind the dial to prevent distraction by matter on the slide 7.
GB3794663A 1963-09-26 1963-09-26 Improvements relating to slide calculating devices Expired GB1036408A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3794663A GB1036408A (en) 1963-09-26 1963-09-26 Improvements relating to slide calculating devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3794663A GB1036408A (en) 1963-09-26 1963-09-26 Improvements relating to slide calculating devices

Publications (1)

Publication Number Publication Date
GB1036408A true GB1036408A (en) 1966-07-20

Family

ID=10400137

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3794663A Expired GB1036408A (en) 1963-09-26 1963-09-26 Improvements relating to slide calculating devices

Country Status (1)

Country Link
GB (1) GB1036408A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2144893A (en) * 1983-07-07 1985-03-13 Pal Bjorn Olsen A device for combination of data
GB2329496A (en) * 1997-09-10 1999-03-24 Victor Sadler Cornes Tidal calculator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2144893A (en) * 1983-07-07 1985-03-13 Pal Bjorn Olsen A device for combination of data
GB2329496A (en) * 1997-09-10 1999-03-24 Victor Sadler Cornes Tidal calculator
GB2329496B (en) * 1997-09-10 2002-02-06 Victor Sadler Cornes Tidal calculator

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