Felt and Tarrant Comptometer, 1887.

Mathematics

circa 1900

Comptometer, early form (wooden box), 72 keys numbered, plate on top of box engraved " Trade Comptometer mark, Patd. July 19th 1887, Oct 11th 1887, Jan 8th 1889, June 11th 1889, Nov 25th 1890, Dec 15th 1891, Felt & Tarrant Manufacturing Co., Chicago"

Square signed "J.Ramsden, 1757"

Mathematics

1757

Square signed ‘J. Ramsden, 1757’. This square belonged to, and was probably made by, Jesse Ramsden. The brass section of the instrument is scored with letters, figures and other marks.

Compendium rule signed Humfrey Cole

Mathematics

1574

Compendium rule made by Humfrey Cole in 1574, London. It is signed 'Humfrey Cole 1574'. The instrument consists of two folding arms, each of which are engraved with scales for measuring and making calculations.

Ready reckoner

Mathematics

1990

`MONEYWISE' calculator converting metric to imperial, Celsius to Farenheit and mortgage interest rates using interference, 1990

Drawing instruments by Charles Whitwell

Mathematics

1593-1610

Case of drawing instruments in leather sling case made by Charles Whitwell between 1593-1610 near St. Clement's Church (without Temple Bar), London. The set contains a pair of 8-inch brass-and-steel dividers with pencil attachment, an 8-inch brass sector, 41/2-inch brass three-legged dividers (probably not original to the set and made at a later date) , a pair of 41/2-inch brass dividers and a brass scribing tool used to mark a surface on which a line is to be drawn. The sector is engraved with the initials 'C.W' for Charles Whitwell.

Sector signed John Allen

Mathematics

1630-1642

Gunter sector made by John Allen in 1623, Strand, London. It is signed 'John Allen fecit'.

Geometrical Groin Vault, string surface model

Mathematics

1872

Groin; oblique intersection of two splayed vaults of the same spring

Stanhope square demonstrator, c.1805.

Mathematics

circa 1805

Stanhope Demonstrator, an instrument for performing logical operations designed by Charles Stanhope.

Samuel Morland's calculating machine

Mathematics

1666-1695

Calculating machine designed by Sir Samuel Morland in 1666 with leather case, made between 1666-1695.. Inscribed: 'Samuel Morland Inventor 1666'. Probably made by Humphrey Adamson in Holborn, London, but not signed.

Sector by Charles Whitwell

Mathematics

1600-11

Brass sector signed "C.W' made by Charles Whitwell between 1600-11, near St. Clement's Church (without Temple Bar), London.

Burroughs hand operated adding and listing machine

Mathematics

1913

Burroughs hand operated adding and listing machine, serial no. 5029, by Burroughs Adding Machine Company, Detroit, dated 1913.

Gunter sector signed Elias Allen

Mathematics

1623

Brass Gunter sector made by Elias Allen in 1623, near St Clement's Church (without Temple Bar), London. It is signed 'Elias Allen fecit 1623.'

Morland's calculating machine

Mathematics

1666-1680

Morland's calculating machine, engraved "Samuel Morland, Inventor, 1666"; in leather box Humphrey Adamson, mathemtical instrument maker active 1668-1676, made the calculating machine invented by Samuel Morland.

Calculating machine (arithmometer), Paris, France, 1880-1900

Mathematics

1880-1900

Arithmometer by Thomas de Colmar, no.2034

Ready reckoner for ship's cargoes

Mathematics

1807

Ready reckoner or calculating scale, boxwood weighted with brass, for gross and tare weights of ship's cargoes, engraved "Robert Ludgate, Custom House, London, 1807"

A Stchety, Russian Abacus.

Mathematics

1901-1930

stchety (Russian form of Abacus), early 20th century.

Pair of seventeenth-century dividers

Mathematics

1600-1699

Pair of 121/2 inch dividers made during the seventeenth century, maker and place of production unknown.

Silver sector signed by Culpeper

Mathematics

1700-1737

Silver sector made by Edmund Culpeper and signed 'Culpeper Fecit" between 1700-37, Moorfields, London.

Napier's Bones

Mathematics

1690

Set of Napier's rods in boxwood case, made in England by an unknown maker, about 1690.

Slide rule for exchange of weights and measures

Mathematics

1815

Slide rule by William Cary, 1815, for calculations in exchange of monies weights and measures

Slide rule by Robert Bissaker

Mathematics

1654

Slide rule made by Robert Bissaker in 1654, Radcliffe (now Wapping), London. Signed 'Robert Bissaker 1654 For T W'. It is the earliest-known dated straight slide rule.

Burroughs hand operated adding and listing machine

Mathematics

1917

Burroughs hand operated adding and listing machine, with keyboard for sterling currency, serial no. 1-349838.

Burroughs Class 4 1000 hand operated adding and listing machine with keyboard for Sterling currency

Mathematics

1925-1935

Burroughs Class 4 1000 hand operated adding and listing machine with keyboard for Sterling currency, serial number 4-1282626 with bag

Comptometer, manual operation

Mathematics

1930-1940

Comptometer, manual operation, sterling keyboard with 13 digit display, ser. no. 303421, by Felt and Tarrant

Calculating rule by Lenoir in centimetres with conversions

Mathematics

1800-1825

Calculating rule by Lenoir in centimetres with conversions. Early 19th century

Muldivo 'Mentor' calculator model WSR, 160 c1955.

Mathematics

circa 1955

Muldivo 'Mentor' calculator model WSR, 160 c1955.

Burroughs Class 5 hand operated mechanical adding machine with ten registers

Mathematics

1920-1925

Burroughs Class 5 hand operated mechanical adding machine with ten registers, serial number 464495.

Drawing instrument set

Mathematics

circa 1890

Set of drawing instruments, made by A. G. Thornton, Manchester, around 1890.

Washington calculator for problems of reinforced concrete

Mathematics

Washington calculator for problems of reinforced concrete, made in Italy, with French instruction booklet by E. Reybaud, Marseille

Multo Brunsviga type barrel calculating machine

Mathematics

1950-1960

Multo Brunsviga type barrel calculating machine, model 115, serial no. 76240, by A.B.Addo.

`Polygraphic papers' coder/de-coder

Mathematics

`Polygraphic papers' coder/de-coder by D'Montfort. Late 18th century

Addac adding machine

Mathematics

1926

Addac adding machine, marked for American currency, finger-operated wheels, serial no. 00516

Comptometer by Felt and Tarrant Mfg. Co. Chicago

Mathematics

1915-1920

Comptometer by Felt and Tarrant Mfg. Co. Chicago, c. 1915

Revolution of constant negative curvature

Mathematics

1910

Single surface of revolution of constant negative curvature

Early model wooden-case comptometer by Felt and Tarrant Manufacturing Co.

Mathematics

1887-1903

Early model wooden-case comptometer by Felt and Tarrant Manufacturing Co., Chicago, USA.

Navigational Computor Mark III

Mathematics

Navigational Computor Mark III, calculating device for aerial navigation

Architect's drawing instruments

Mathematics

Set of architect's drawing instruments by various makers contained in 4 trays in fitted wooden box 19 1/2 x 13 1/2 inches

Special metal protractor for machine for finding the roots of cubic equations

Mathematics

Special metal protractor for machine for finding the roots of cubic equations both real and impossible

12 inch architectonic sector in ivory and silver

Mathematics

1733-1795

12 inch architectonic sector in ivory and silver, made by G. Adams (2 small clamps screws missing)

Double surface of revolution of constant negative curvature

Mathematics

1910

Double surface of revolution of constant negative curvature

Thales manual barrel calculating machine

Mathematics

1950-1960

Thales manual barrel calculating machine, model DER, serial no. 160527 , capacity 12x10x18, made in Germany and sold in Britain under the name of Muldivo

Multo calculating machine made by Addo

Mathematics

1955-1965

Multo calculating machine made by Addo, Malmo, Sweden, model 113, serial no. 29212

Slide rule, "System Rietz", by Sun Hemmi, Japan

Mathematics

Slide rule, "System Rietz", by Sun Hemmi, Japan

Klein bottle, 1995.

Mathematics

1995

Klein bottle cut to form two interlinked three-twist mobius strips.

AviatJet 647 Aristo Air Navigation Computer.

Mathematics

1970-1975

AviatJet 647 Aristo Air Navigation Computer.

Poincare Plane mathematical quilt made by Elaine Krajenke Ellison

Mathematics

1994

Poincare Plane mathematical quilt made by Elaine Krajenke Ellison, 1994.

Klein bottle, 1995

Mathematics

1995-1996

Klein bottle cut along line 1 to form one single-twist mobius strip.

McFarlane calculating cylinder, c.1835.

Mathematics

circa 1835

McFarlane calculating cylinder

Klein bottle, 1995-1996.

Mathematics

1995-1996

Triple Klein bottle, as item 3), two slices, each 1/6, cut away to form single-twist strips.

Model illustrating the Surface of Luminous Waves

Mathematics

1876

Plaster model, after Fresnel, to illustrate the surface of luminous waves - in 3 parts