United Kingdom
British Slide Rules
England was the home of John Napier (1550-1617), Edmund Gunter (1581-1626), William Oughtred (1575-1660), and many others, giving the British the credit for kicking off the development of the wide use of slide rules and calculators based on logarithims. This gallery shows British based manufacturers and distributors in the United Kingdom that do not have their own gallery
KEEP ISRM FREE!
More British slide rules may be found in: Blundell-Harling (BRL);Pocket Watches; Rarities; PIC/Thornton; Unique.
Albert John Anido


The Anido Slide Rule (1923)

ISRM 13.02.20.02


British Patent GB195286 Figure 1 & 2

The Anido Slide Rule (1923)
Designed by Albert John Anido (1883-1949), of 69 Earls Court, London, England
Patent: GB 195,286 March 29, 1923
Note: Railroad track type divisions. Has Special Plus and Minus Log scales used for Constants Conversions.
Note: 2: Peter M. Hopp has a reference in his book that eludes to Albert Nestler making slide rules for Anido c1938.
Front Scale: 10in (10ths) // +L, A [ B, C ] D, -L \\ 25cm
Back Scale: [ Constants Conversions, LE, T ]
Well (using beveled end of slide as indicator): [ Sines, Cos ]
Gift of Dick Rose, owner of Rose Vintage Instruments, Ohio

Albert John Anido (ca1890)


Albert John & Ernestine Regina Anido (ca1900)

Known history: Albert John Anido was Born in Montevideo, Uruguay (1883). He had a sister, Ernestine Regina Anido (1879-1948) and brother William Nicholas Anido (1881-1914). Mentioned as an elected student in the Journal of the Institution of Electrical Engineers, Volume 40 (1907-1908) page 411. Graduated B.SC.(Eng) at the University of London in 1909. Married to Nellie Helen Blanch Forsdyke. They had a son, John David Forsdyke Anido (1916-2001). The 1914-1919 Jerseymen roll of service includes an Albert John Anido of military age who fought in the First World War and the 21 March 1916 London Gazette lists the London Electrical Engineers: Corporal Albert John Anido to be Second Lieutenant (on probation) working with the anti-aircraft corps. A later record in the London Times shows an Albert John Anido (sn 73845) as being a pilot in training in 1941, but he would have been 58 by then, so this must be some other relation. The 1939 London Gazette shows that he died atFlat 6, Eaton Hall, 15, Eaton Gardens, Hove, Sussex, 22nd January, 1949 and his last profesion as being an Engineering Tutor. Besides his slide rule patent, Albert Anido obtained GB 260,497 Indicating ringing of bells to operators in 1926.

Boots Ringplan


S349 Boots Ringplan (Mannhiem)
Boots Ringplan (Mannhiem)
Made in Japan for Boots Ringplan Pharmacy Chain
Front Scale
25cm, A [ B, CI, C ] D, K
Back Scale: [ S, L, T ]
Original Owner/Location: Unk/England
Manual 8.48Mb


S432 Boots Ringplan Precision Log Log
Boots Ringplan Precision Log Log
Made in Japan for Boots Ringplan Pharmacy Chain
Front Scale
LL3, LL2, LL1, A [ B, BI, CI, C ] D, DI, K, LL0
Back Scale: [ T2, T1, L, S ]
Original Owner/Location: Unk/England


S294 Boots Ringplan Standard
Boots Ringplan Standard
Made in Japan for Boots Ringplan Pharmacy Chain
Front Scale
25cm // A [ B, CI, C ] D, K \\ 10in
Back Scale: [ S, L, T ]
Original Owner/Location: Unk/England


P165 Boots Ringplan Standard pocket
Boots Ringplan Standard pocket
Made in Japan for Boots Ringplan Pharmacy Chain
Front Scale
13cm // A [ B, CI, C ] D, K \\ 5in
Back Scale: [ S, L, T ]
Original Owner/Location: Unk/England


P235 Boots Ringplan Standard pocket
Boots Ringplan Standard pocket
Made in Germany for Boots Ringplan Pharmacy Chain
Front Scale
13cm // K, A [ B, CI, C ] D, L \\ 5in
Back Scale: [ S, ST, T ]
Original Owner/Location: Unk/England

British Slide Rule Co

The British Slide Rule Co, was a subsidiary of Marine & Overseas and also made slide rules for Technical Standard.



REF British Slide Rule Co - The Supreme
British Slide Rule Co - The Supreme
Made in England
Front Scale
10 in // M, S, A [ B, CR, C ] D, T, N \\ 27 cm
Back Scale
Equivalents Tables
Note: CR is usually shown as C1 or R. M & N are usually denoted LU & LL or LL2 & LL3.
Photo contributed by Dave Riches Collection





P217 Classic Series 1 Pocket
Classic Series 1 Pocket
Made in England
Front Scale
5inch // A [ B, C ] D || 13cm
Back: Conversions
Original Owner/Location:Unk/England


S270 Classic Series 1
Classic Series 1
Made in England
Front Scale
10inch // A [ B, C ] D || 26cm
Back: Conversions
Original Owner/Location:Unk/England


P012 Classic Series II
Classic Series II
Made in England
Front Scale
5inch // UL, A [ B, C ] D, L || 13cm
Back: Conversions
Original Owner/Location: G. McVittie/England


S425 Classic Log-Log
Classic Log-Log
Made in England
Front Scale
10inch // UL, A [ B, S, T, C ] D, L || 26cm
Back: Conversions
Original Location: England

Theodore Farmar
100 Station Approach Road, Ramsgate, Kent, England



Farmar's Profit-Calculating Rule
Farmar's Profit-Calculating Rule
Made in England - Business Slide rule
Roller:
Slide:
Archive - Scan by Nathan Zeldes, Israel.



Regal series
Model Numbers



ISRM Helix Regal A102S
Helix Regal A102S
Made in Japan for Helix Works, Stourbridge, Worcestershire, England.
Front Scale
S, K, A [ B, CI, C ] D, L, T
Back: Blank
Acquired out of England
Note: Both the Regal and Hellerman slide rules use the same cursor and may be swapped with each other.
Helix Regal series Instructions (2.1MB pdf).


Hellerman Slide Rules Ltd.


1989 London Gazette Liquidation Notice
HELLERMAN SLIDE RULES LIMITED
P.O BOX 810, FRIARY COURT
65 CRUTCHED FRIARS,LONDON
EC3N 2NP,UNITED KINGDOM
Incorporated: 19 Jan 1960 by Esmond Hellerman
Dissolved: 1989
Esmond Hellerman imported and distributed slide rules from Japan, Denmark (UTO) and Czechoslovakia (Logarex) as well as numerous other drafting and engineering instruments. The business lasted 29 years.


ISRM Hellerman No. 51
Hellerman No. 51
Made in Japan
Front Scale
S, K, A [ B, CI, C ] D, L, T
Back: Blank
Acquired out of England
Note: Both the Regal and Hellerman slide rules use the same cursor and may be swapped with each other.

Norton & Gregory Ltd



S537 Norton & Gregory Ltd
Simplon Primary
Made in Japan for N&G (by ?)
25cm divided scales, extruded aluminum cursor
10in // A [ B, CI, C ] D || 28cm
Well: Extended 60cm scale
Back scale: S, L, T
Back: Equivalents
Original Owner/Location: Unk/ England

Carbic Ltd., London

Cylindrical Pocket Slide Rule with Helical Scales
Scale effective length 66 in (168 cm) with 4 significant figures.

Otis Carter Formby King biography by Susan Richards

Known addresses of Carbic Ltd. (1921-1972):
0: 44 & 66 Bray's Lane, Coventry (1921)
A: "Ashdene," Emscote Road, Stoke, Coventry (1922)
1: 51 Holborn Viaduct, London, EC1 (c1940)
2: 137 Conway Road, London, N14
3: 171 Seymour Place, London, W1
4: 54 Dundonald Rd, London, SW19
(Addresses 0, 1, 3, and 4 are found
on instruction sheets or rules)
Patents
UK patent GB 183,723 (1921)
UK patent GB 207,762 (1922)
UK patent GB 207,856 (1922)
US patent US 1,645,009 (1923)
Canadian patent CA 241986
Canadian patent CA 241076
French patent FR569985
French patent FR576616
German patent DE 418814


Otis King Classification Types

According to Peter Hopp, there are 3 principle types,
A, B and C and a B/C Hybrid. See Richard Lyon's Website

Sketch from Colin Barnes article in JOS Vol 4 No 2

Patent UK183723 Issued Aug 3, 1922

Manual 8 Pages
(524Kb PDF)

Known Scale Sets: 409/410, 414/423, 416/417, 422/424, 429/430
Known Models: K, L, N.



REF Otis King Model K Cylindrical (Type A 1921-1923)
Otis King Model K Cylindrical (Type A)
Made in England - 66 inch scales for multiplication and division
Patents: UK 183723
Serial number:
Scales: 424 and 422
Archive - Ebay Photo
Leather Case


Otis King Model K Cylindrical (Type A 1940)

ISRM 14.01.03.03
Otis King Model K Cylindrical
Made in England - 24mm Dia. x 260mm Long, 66 inch scales
Patents: UK 183723
Serial number: 5673
Scales: 423 and 414
Snap Case


ISRM Otis King Model K Cylindrical (Type C 1960)

11.12.29.01
Otis King Model K Cylindrical
Made in England - 24mm Dia. x 260mm Long, 66 inch scales
Patents: UK 183723
Serial number: V7554
Scales: 423 and 414
Leather Case


Otis King Model L Cylindrical (Type B 1960)

ISRM 11.12.29.02
Otis King Model L Cylindrical
Made in England - 24mm Dia. x 260mm Long, 66 inch scales
Patents: UK 183723
Serial number: Z2275
Scales: 429 and 430
Note: Came in Green cardboard box (missing top)

Otis King Type C Model K and L Instructions


F. S. Ratcliffe
Crawford Spring Works, Rochdale, England



ISRM Ratcliffe's Spring Calculating Slide Rule
Ratcliffe's Spring Calculating Slide Rule
Made in England (Possibly by Unique) - For designing coil springs
Designed by F.S. Ratcliffe for Crawford Spring Works, Rochdale, England
Front Scale: D [d, dc, w ] f, D1 [ d1, R ] N
Note: scales references on this slide rule are not the same as generic scales
Scale explanation: Mean Dia [ Wire dia, Wire dia index, Load ] Stress, Mean Dia [ Wire dia, Spring Rate ] No. of Coils
Cursor Scale: C (spring index)
Back: Instructions (part one)
Well (top): Instructions (part two)
Well (bottom): English equivalents of metric spring wire
2 Page Instructions 2.75Mb

"SIMPLON"



S491 Simplon Primary
Simplon Primary
Made in England
Front Scale: LU, A [ B, CI, C ] D, LL
Back: Equivalents
Original Owner/Location: Unk/Chinoor, England


P208 Simplon Bilateral S-B-5
Simplon Bilateral S-B-5
Made in England - Pat Pending
Front Scale: A [ B, C ] D
Back: Scales: A, Sine(S), Log(L), Tan(T), D
Reversible bilateral cursor


S107 Simplon Bilateral (Log Log
)
Simplon Bilateral (Log Log)
Made in England - Pat 413308
Front Scale
LU, A [ B, CI, C ] D, LL
Back: Slide Blank
A, Sine, Log, Tan, D
Reversible (bilateral cursor)
Original Owner/Location: Unk/England


S390 Simplon SR-10 Bilateral (Rietz System)
Simplon SR-10 Bilateral (Rietz System)
Made in England - Pat 413308
Front Scale (extended)
D3, A [ B, C ] D, L
Back Scale A, Sine(S), Log(L), Tan(T), D
Reversible (bilateral) cursor
Original Owner: E.C. Evans/ England


S390 Simplon SR-10 Bilateral (Rietz System)
Simplon SR-10 Bilateral (Rietz System)
Made in England - Pat 413308
Front Scale (extended)
D3, A [ B, C ] D, L
Back Scale A, Sine(S), Log(L), Tan(T), D
Reversible (bilateral) cursor


REF Simplon XL-10 (Log Log) Bilateral
Simplon XL-10 (Log Log) Bilateral
Made in England - Pat 413308
Front Scale (extended)
LU, A [ B, CI, C ] D, LL
Back Scale A, Sine(S), Log(L), Tan(T), D
Reversible (bilateral) cursor
Archive - Rod Lovett Collection, UK


REF Simplon Electro Log Log
Simplon Electro Log Log
Made in England - Pat 413308
Front Scale (extended): LU, A(Kw) [ B(Hp), CI, C ] D, LL
Well: Dynamo (Motor), Volt
Back Scale: Log, D
Back of Slide: A, Sine(S), Tan(T), D
Reversible (bilateral) cursor
Archive - Cyril Catt Collection, Australia


Simplon "Primary", "Bilateral", "Major" Slide rule Instructions (1.6MB PDF)


Simplon Special Marks on Slide rule

W.F. Stanley & Company - Holborn, London, England

W. F. Stanley and Company, manufacturers of mathematical, drafting and scientific instruments, was founded in 1854 by William Ford Robinson Stanley (1829-1909); it became a limited company (corporation) in 1900. In 1861 Stanley invented a prize-winning straight-line dividing machine that was used to make accurate scales for slide rules and other mathematical instruments. Among the slide rules manufactured and distributed by the Stanley company were the C.T. Cooper slide rule and the Fuller spiral slide rule, designed by George Fuller in 1878.


L09 Stanley London 20inch
Made in England
Front Scale: 20inch // A [ B, CI, C ] D || 50cm
Back Slider: [ S, L, T ] Back: Equivalents



REF Cooper 100 Inch Slide Rule
Cooper 100 Inch Slide Rule
Made by Stanley, London for C.T. Cooper & Son. Circa 1920
Dimensions: Height 19.5cm Width 24.5 cm Depth 3cm
Material: Polished hardwood fixed with brass screws and with white celluloid (early plastic) calculating scale. The cursor is metal.
Scales: C [D ] 20 segments
Photo from March 2009 Philip Weiss Auction and the National Museum Of American History

Technical Sales Ltd., London

Emblem Series Instructions (19MB)


ISRM Technical Sales 1051 Tutor Emblem Series
Technical Sales 1051 Tutor Emblem Series
Made in Japan for British Company T.S. (by Uchida Yoko, Co)
Front Scale:
K, DF [ CF, CIF, CI,, C ] D, A
Back: Blank
Cursor: Multiple Hairlines
Donated by Richard Davis, Las Vegas, Nevada

Need Technical Sales 1052 Olympic Emblem Series
Technical Sales 1052 Olympic Emblem Series
Made in Japan for British Company T.S. (by Uchida Yoko, Co)
Front Scale
L, K, A [ B, CI,, C ] D, S Cos, ST Cos, T Cot,
Back Scale
25 cm [ Blank ] 8 in
Cursor: Multiple Hairlines


ISRM Technical Sales 1053 Olympic LL Emblem Series
Technical Sales 1053 Olympic LL Emblem Series
Made in Japan for British Company T.S. (by Uchida Yoko, Co)
Front Scale
L, K, A [ B, CI,, C ] D, S Cos, ST Cos, T Cot,
Back Scale
25 cm [ S, LL2, LL3 ] 8 in
Cursor: Multiple Hairlines
Donated by Richard Davis, Las Vegas, Nevada


ISRM Technical Sales 1071 Commercial Emblem Series
Technical Sales 1071 Commercial Emblem Series
Made in Japan for British Company T.S. (by Uchida Yoko, Co)
Front Scale
F1 [ F2, 1/C, C ] D, Units Conversions
Back Scale: £, s./d.
Cursor: Multiple Hairlines
Donated by Richard Davis, Las Vegas, Nevada TS Emblem 1071 Commercial Instructions (7.46MB pdf).


ISRM Technical Sales 1081 TechLog Emblem Series
Technical Sales 1081 TechLog Emblem Series
Made in Japan for British Company T.S. (by Uchida Yoko, Co)
Front Scale
LL01, LL02, LL03, A [ B, L, K, C ] D, LL3, LL2, LL1
Back Scale
T2, T1, ST, DF [ CF, CIF, CI, C ] D, P, S Cos
Cursor: Multiple Hairlines
Donated by Richard Davis, Las Vegas, Nevada


ISRM Technical Sales 1091 Executive Emblem Series
Technical Sales 1091 Executive Emblem Series
Made in Japan for British Company T.S. (by Uchida Yoko, Co)
Front Scale
T1, T2, A [ B, BI, CI, C ] D, P, S Cos, ST
Back Scale
LL3, LL2, LL1, DF [ CF, CIF, CI, C ] D, L, K
Cursor: Multiple Hairlines
Donated by Richard Davis, Las Vegas, Nevada

Technical Standards



S500 The Technical Standard Slide Rule
The Technical Standard Slide Rule
British Made - solid celluloid cursor frame
Front Scale (extended)
10inch // M, A [ B, C ] D, N \\ 27cm
Back Scale: [ S, ST, T ]
Back side windows
Original Owner/Location: Unk/England


S240 The Technical Standard Slide Rule
The Technical Standard Slide Rule
British Made - all glass cursor
Front Scale (extended)
10inch // M, A [ B,  C ] D, N \\ 27cm
Back Scale: [ S, ST, T ]
Back side windows
Original Owner/Location: Unk/England

W. H. Smith & Son

> >


P207 W.H. Smith Simplified Reitz
W.H. Smith & Son Simplified Reitz
Made in England (by BRL?)
Front Scale
K, A [ B, CI, C ] D, L
Original Owner/Location: Unk/England


W.H. Smith & Son - Log Log Trig

REF
W.H. Smith & Son - Log Log Trig
Made in England by Blundell Harling for WH Smith
Front Scale:
L, LL2, LL3, A [ B, CI, C ] D, S, T, ST
Back Scale: Blank
Scan provided by the Steve Seale Collection, Nashville, Tennessee


W.H. Smith - Jakar 29 Student Log/Log

ISRM 09.01.12.98
Jakar 29 Student Log/Log
Made in Japan by Fuji for British Market
Front Scale
L, K, A [ B, CI, C ] D, S Cos, ST, T Cot
Back Scale: 25cm [ S, LL2, LL3 ] 10in
Note: WH Smith sleeve and instructions
Donated by David Hecht, Alexandria, VA
Instructions 2.73MB PDF


W.H. Smith A505 Master Duplex

REF
W.H. Smith A505 Master Duplex
Made in England by Blundell Harling for WH Smith
Front Scale:
LL01, LL02, LL03, A [ B, L, CI, C ] D, LL3, LL2, LL1
Back Scale:
K, P, ST, ST, DF [ CF,CIF, CI, C ] D, T, Cot, S, Cos
Scan provided by the Steve Seale Collection, Nashville, Tennessee

Westechno Ltd. Exmouth, Devon, England



Westec Electronics Slide Rule

ISRM 13.04.26.02
Westec Electronics Slide Rule
Made in England by B.R.L. (ref P2361) for Westechno. Ltd., Exmouth, Devon, England
Patents: Provisional No.49828
Front Scale
(Lr)H, K, (fx)2π, A [ (Cr)B, S Cos, T Cot, (Lx or Cx)CI, XL or fr) C ] D (XC), L, Ln, ST
Back: Design aids for Reactance, Resonance, Temperature, Ohm's Law, Frequency and Wavelength, Equivalents, etc.
Note: This is the only slide rule, besides those made by Pickett, to have an 'Ln' scale
Gift of Phillip Rodley, Upper Hutt, NZ
Phillip Rodley

Wiljon Technik-Art



Wiljon Technik-Art Log Log Trig

ISRM 09.01.12.99
Wiljon Technik-Art Log Log Trig
Made in England by Blundell Harling
Front Scale
K, LL2, LL3, A [ B, L, CI, C ] D, S, T, ST
Back: Blank
Donated by David Hecht,Alexandria, VA

Wollaston, William



REF Wollaston Chemical Slide Rule

Wollaston Chemical Slide Rule
Made in England by William Hyde Jackson Wollaston_
Front Scale: Chemical Equivalents
William Hyde Jackson Wollaston - (1766-1828) United Kingdom. Chemist. Physicist. Physiologist. Practised medicine from 1789-1801. Wollaston became wealthy by developing the first physico-chemical method for processing platinum ore in practical quantities, and in the process of testing the device he discovered the elements palladium (symbol Pd) in 1803 and rhodium (symbol Rh) in 1803. Also known for Camera lucida and Dark lines in the solar spectrum. Developed the Wollaston Slide Rule of Chemical Equivalents in 1814. Made discovery of absorption lines in solar spectrum; 1793 - elected a fellow of the Royal Society (FRS); 1795 - elected a fellow of the Royal College of Physicians; 1802 - The Royal Society awarded him the Copley medal;

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