History-Computer

Covering computing, gaming, all of tech

William Macnider — Complete Biography, History, & Inventions

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Who Was William Macnider? In 1884, John Macnider of Greensborough, Georgia, applied for a patent for a keyboard adding machine. Unfortunately, very little else is known about this machine and its inventor. Only his U.S. patent and details about his keyboard adding machine are known. Early Life It’s believed that William John Macnider was a […]

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Clarence Locke

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Locke Adder Clarence E. Locke (1866-1945) from Kensett, Iowa, USA, was a holder of 2 US and 2 German patents for a calculating device—slide bar adder, which became popular as Locke Adder. The first patent is №689680 from December, 1901, the second is №779088 from January, 1905 (see the lower patent drawing). Locke was a […]

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Ernest-Narcisse Lobbé

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History of Computers and Computing, Calculating tools, Gadgets, Ernest-Narcisse Lobbé Ernest-Narcisse Lobbé In early 1850s Ernest-Narcisse Lobbé, a Parisian watchmaker and mechanic, created one of the first keyboard calculating machines in the world (after the machines of James White, Luigi Torchi, Jean-Baptiste Schwilgué and Du Bois D. Parmelee). The machine (so called Additionneur mécanique à […]

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Melvin Lovell's first patent for cash register and indicator

Melvin Lovell – Complete Biography, History, and Inventions

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Who Was Melvin Lovell? Born in Pennsylvania in August 1844, Melvin Lovell was a successful businessman and woodenware manufacturer who also held several patents for multiple devices during his lifetime. A few of the patents he held included the patent for cash registers, otherwise regarded as adding machines. Early Life Melvin Newton Lovell was born […]

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Gustavus Linderoos

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Gustavus Linderoos On August 11, 1871, Captain Gustavus Linderoos (1818-1885) from Point Arena, Mendocino, California, filed a patent application for an adding machine. The patent (US patent 140146) was granted on June 24, 1873. The adding machine of Linderoos is similar to the ciclografo from 1650s, attributed to Tito Livio Burattini. The patent model of […]

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Peter Lindholm adding machine

Peter Lindholm – Complete Biography, History, and Inventions

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Who was Peter Lindholm? Peter Trulson Lindholm was born on April 4th, 1850, in Ysone, Blekinge, Sweden. Lindholm emigrated to the United States around 1874 when he was just 24 years old. By 1883, he had settled in Lindsborg, a small town in the Smoky Valley region of north-central Kansas. While this rural location seems […]

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Leonard Nutz lived in St. Louis between 1847 and 1858

Leonard Nutz – Complete Biography, History, and Inventions

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Who Was Leonard Nutz? Born Leonard Nice Nutz, he was an inventor and machinist born in October 1810 in Germantown. From Alton, Illinois, Leonard held the patent for USA’s fourth keyboard adder, the single-column adding device. He received this patent on August 17, 1858, when he was 48 years old. Leonard died on November 16, […]

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Otto Lilienthal

Otto Lilienthal – Complete Biography, History, and Inventions

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Who was Otto Lilienthal? No mistake, yet another celebrity should be mentioned as an inventor of calculating device, after Leonardo Da Vinci, Blaise Pascal, Gottfried Leibniz, and other not so illustrious men. This time it’s about Karl Wilhelm Otto Lilienthal, the German pioneer of aviation, known as the Glider King Karl Wilhelm Otto Lilienthal, also […]

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Judah Levin's adding machine

Judah Levin Adding Machine Explained — Everything You Need To Know

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Judah Levin’s Adding Machine History Yehuda Leib Levin was born on March 26, 1863. He was the son of Nachum Pinchas and was born in Traby, Vilna Province, Russian Empire (now a small town in Belarus). Levin’s father died when he was eight years old and his uncle, rabbi Abraham Abramowitz, was an esteemed Talmud […]

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The adding machine of Oskar Leuner.

Oskar Leuner – Complete Biography, History, and Inventions

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Before the calculating device became what it is today, the idea of an adding device was front and center on the minds of many of the world’s most intelligent thinkers. With so many different people running through so many different ideas, it goes without saying that not everything stuck. Still, these innovations — whether failed […]

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The patent drawing of Niels Larsen calculating machine

Niels Larsen – Complete Biography, History, and Inventions

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Who Was Niels Larsen? Niels Larsen was a surveyor, accountant, mine-seeker, inventor, and a citizen of West Point, Cuming County, Nebraska. Born in 1830, The inventor was popular because of his patent for calculating machines for taxes and interest. He applied for the patent in June 1876 when he was 46 years old and was […]

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Samuel Kelso – Complete Biography, History, and Inventions

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Who was Samuel Kelso? Samuel Kelso was an inventor from Scotland who immigrated to Canada and later to the USA. He is known to be a holder of different patents, like the ciphering machine. This was a calculating machine for solving different equations like addition, multiplication, and subtraction. He was also a holder of the […]

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The patent drawing of adding machine of William Lang.

William Lang Biography: History, Inventions, and Tragedy

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Who is William Lang? William Lang was a leading noise control engineer at IBM and a fellow of the American Association for the Advancement of Science. He worked with the Senate staff in the early 1970s on the Noise Control Act of 1972. The Act led to the creation of the Institute of Noise Control […]

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Georges Lafond

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History of Computers and Computing, Calculating tools, Gadgets, Georges Lafond Georges Lafond In 1899 the french engineer Georges Lafond from Paris patented (German patent DE148810, US patent US653250 and Swiss patent CH19395) an interesting watch-like circular adding machine (see the photo below). In fact, the patents described several different types adding devices, and only one […]

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Charles Labofish

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Charles Labofish In the late 19th and early 20th century Charles Schachan Labofish, a Jewish immigrant from Odessa, Russian Empire, who came to America in 1888 (see biography of Charles Labofish), devised various machines (calculating machines, typewriters, log-sawing machine, cyclometers, indicating device for bicycles, etc.) and received some 15 US, Canada and Great Britain patents […]

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Landin's Computing Machine

Landin’s Computing Machine Explained – Everything You Need To Know

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3 Facts about Landin’s Computing Machine The Landin’s Computing Machine is a slide-chain adder with seven digital settings that you may manipulate with a pin or pencil. Landin’s Computing Machine is a well-designed and well-constructed gadget with a solid and sturdy build. It was invented in1890 by Peter J. Landin (Mar. 9, 1858–Jan. 24, 1940) […]

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Jehu Hatfield – Complete Biography, History, and Inventions

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Who was Jehu Hatfield? Jehu Hatfield was an American inventor known for producing an incredible calculator used in money calculations. On May 6, 1844, he took out a US patent №3574 for a machine for computing interest, measuring lumber, and for other purposes. It is unknown how many devices were produced, but at least one […]

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The patent drawing of adding machine of Milton Jeffers.

Milton Jeffers – Complete Biography, History, and Inventions

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While the 20th century saw inventors and mathematicians get closer and closer to the modern calculators and computers we know and use today, the 19th century saw them experimenting on wild, unique designs that — despite not looking anything like the devices we’re familiar with in the modern-day — helped to pave the way to […]

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Henry House

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History of Computers and Computing, Calculating tools, Gadgets, Henry House Henry Alonzo House Henry Alonzo House (1840-1930) (see biography of Henry Alonzo House) was an extremely prolific American inventor, who secured over 300 US and foreign patents. Interestingly, one of his early patents (US Patent No. 109619) from 1870 is for a calculating device. The […]

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Lewis Hosea and William Beardsley

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History of Computers and Computing, Calculating tools, Gadgets, Lewis Hosea and William Beardsley Lewis Hosea and William Beardsley On 3 March, 1891, Lewis Hosea (see biography of Lewis Hosea), a lawyer and amateur mechanic, and William Beardsley (see biography of William Beardsley), a businessman, both from Cincinnati, Ohio, obtained a patent for keyboard adding machine […]

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Johan Hellström

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History of Computers and Computing, Calculating tools, Gadgets, Johan Hellström Hellström’s Räknemaskin (calculating machine) Johan Fredrik Hellström was a Swedish machinist, born on 5 March, 1838, in Stockholm. In 1857 he moved to Nyköping, and lived either there or in Stockholm until his death. In 1870s, Hellström devised an interesting adding device, which was announced […]

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Christian Hergenroeder

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History of Computers and Computing, Calculating tools, Gadgets, Christian Hergenroeder Christian Hergenroeder On October 10, 1882, a patent for a simple adding device (US patent 263904) was granted to Christian W. Hergenroeder of Baltimore (see the image below). Hergenroeder’s adding machine (© National Museum of American History, Washington, D.C.) The information for Christian William Hergenroeder […]

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Milton's Adding Machine Patent Model

Milton Hinkle  – Complete Biography, History, and Inventions

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Who Was Milton Hinkle? Milton Hinkle was an inventor born in 1848 in Carrollton, Carroll County, Kentucky. Milton was popular for his invention of the simple adding device, a device patented on March 5, 1878. Milton’s simple adding device was somewhat similar to the earlier devices of Jabez Burns and John Ballou, with its patent […]

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De Kerniea James Thomas Hiett

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History of Computers and Computing, Calculating tools, Gadgets, De Kerniea James Thomas Hiett De Kerniea James Thomas Hiett On 20 April, 1897, De Kerniea James Thomas Hiett (1854-1930), an inveterate calculator designer of St. Louis, obtained his first patent for calculating machine (US580863)—a multi column keyboard adding and printing calculator. Hiett will obtain quite a […]

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Calvin Holman

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History of Computers and Computing, Calculating tools, Gadgets, Calvin Holman Calvin Holman Calvin James Holman (1827-1900) was a prolific inventor, a holder of numerous (at least 12) US patents for various devices, like sawing machine, vehicle spring, hand truck, sad iron, vehicle wheel, folding umbrella, etc. One of his patents (US153826) from 1874 is for […]

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William Hart

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History of Computers and Computing, Calculating tools, Gadgets, William Hart Hart’s Mercantile Computing Machine The William Hart’s story had many twists and turns (see biography of William Henry Hart). He was a watchmaker, jeweler, businessman and prolific inventor. Hart had quite a few patents for various instruments and devices, like second-hand holder and screw-end finisher […]

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Ferdinand Hebentanz

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History of Computers and Computing, Calculating tools, Gadgets, Ferdinand Hebentanz Ferdinand Hebentanz On 23 April, 1873, Ferdinand Hebentanz, a watchmaker from Budapest, obtained an patent (Privileg) in Austria-Hungary for adding machines. In the patent are described several different devices: keyboard adding machine without engine, keyboard adding machine with engine (spring motor), and pointer (pen-setting) adding […]

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Joseph Harris

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History of Computers and Computing, Calculating tools, Gadgets, Joseph Harris Joseph Harris Joseph Harris Jr. from Boston, Mass., was a prolific inventor from the middle of XIX century. In 1861 he patented (US patent 31016) a simple adding device, somewhat similar to the earlier devices of Jabez Burns and John Ballou, and an inspiration for […]

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Eduard Hammenstede

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History of Computers and Computing, Calculating tools, Gadgets, Eduard Hammenstede Eduard Hammenstede On 31 March, 1882, Eduard Hammenstede of Cologne, Germany, received German patent No. 20443 on Schnell-Addirmaschine (Quick Adding Machine). The device was a column adder with a large numeral drum and keys, arranged in two rows and as whole looks very much alike […]

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Groesbeck

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Groesbeck’s Adding Machine John Groesbeck (1834-1884), was a consulting accountant, born in New York, who lived in Philadelphia and was many years (from 1858) a teacher and a principal of Crittenden’s Philadelphia Commercial College. He is also known as the author of several books, for instance The Crittenden Commercial Arithmetic and Business Manual, published for […]

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William S. Gubelmann – Complete Biography, History, and Inventions

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Who Was William S. Gubelmann? William Samuel Gubelmann was an American businessman and inventor. Mr. Gubelmann was born in mid-1865 and died in 1959. He is known to be among the handful of Americans to hold hundreds of accredited patents. Most of William’s patents are in the fields of cash registers, accounting machines, adding and […]

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George Phineas Gordon

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History of Computers and Computing, Calculating tools, Gadgets, George Phineas Gordon George Phineas Gordon George Phineas Gordon (see biography of George Phineas Gordon) was a famous American inventor (with more than 50 patents on his name), printer and businessman, who developed the basic design of the most common printing press ever, the Gordon Letterpress. At […]

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Solomon Pool

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History of Computers and Computing, Calculating tools, Gadgets, Solomon Pool Emery Hamilton Emery Manville Hamilton (see biography of Emery Hamilton) was an impressive engineer and inventor from New York, with more than 20 patents in his name in various fields like telegraph, typewriter, time recording device, etc. His first invention, an adding machine, he patented […]

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William Haines – Complete Biography, History, and Inventions

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Who Was William Haines William Haines was an American who invented a remarkable mechanical calculator in the 19th century. Unlike other great inventors such as Gottfried Leibniz, who invented the stepped reckoner, and  Blaise Pascal, a famous French mathematician who created Pascaline, William Haines Calculator was not very popular. Although William’s invention lacked global attention, […]

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Jean-Paul Garnier – Complete Biography, History, and Inventions

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Who was Jean-Paul Garnier? Jean-Paul Garnier was a brilliant French mechanic and watchmaker from the 19th century. He was best known for station clocks to railway stations in France and Romania. His passion, competence, and skill saw him rise to be among the famous watchmakers of the time and earned him multiple awards in watchmaking. […]

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The Golden Gem Adding Machine

Golden Gem Adding Machine Explained – Everything You Need To Know

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3 Facts about Golden Gem Adding Machine Although specialized in addition, the machine can also subtract using a dedicated method. The Golden Gem Adding Machine was designed by Abraham Isaac Gancher but introduced in 1907 by the Automatic Adding Machine Co., New York. The machine was originally sold for $10 per unit. Golden Gem Adding […]

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Fowler’s Tools

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History of Computers and Computing, Calculating tools, Gadgets, Fowler Fowler’s Adding Machine On 14th July, 1863, George B. Fowler of Chicago, Illinois, was granted his first patent (US39222) for an adding machine. In 1890 Fowler received a second patent (US432266) for improved version of his device. George B. Fowler was born in Long Island in […]

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Carlo Fossa-Mancini's adding machine

Carlo Fossa-Mancini – Complete Biography, History, and Inventions

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Who Was Carlo Fossa-Mancini Born in Castelplanio, Italy, Carlo Fossa-Mancini is best known for two things: designing and building an aqueduct in the valley dell’Esino and inventing the Indispensable adding machine. Explore the history of this hydro engineer, inventor, and mayor and how he contributed another key component in the history of the modern calculator. […]

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Frederick Lincoln Fuller

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Frederick Lincoln Fuller In the spring of 1888 the young inventor and self-taught engineer Frederick Fuller (see biography of Frederick Fuller) of Waterbury, Connecticut, saw a model of cash register, while working in the shop of the Specialty Manufacturing Company, a firm engaged in a special brass work, models of inventions, clock movements, etc., owned […]

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Juri Diakov

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History of Computers and Computing, Calculating tools, Gadgets, Juri Diakov Juri Diakov Around 1874, the Russian military engineer from S. Petersburg, captain Juri I. Diakov (Юрiй И. Дьяковъ), devised a simple row adder, one of many adding devices based on Abaque Rhabdologique of Claude Perrault This simple and cheap device went in production in the […]

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George Dudley

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History of Computers and Computing, Calculating tools, Gadgets, George Dudley George Dudley From 1896 to 1912 George Wilson Dudley from Virginia was granted numerous (at least 15) patents in USA, Canada and Great Britain mainly for adding and printing machines, but also for attachments for adding and tabulating for typewriters, and for a vehicle wheel. […]

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Peter Forrester's adding machine

Peter Forrester – Complete Biography, History, and Inventions

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Who was Peter Forrester? Peter C. Forrester was the inventor of many important tools and devices including (but not limited to) the keyboard adding machine, the drill, the scroll former, a new tool to bind metal strips together, a novel method of mining coal, a new kind of filtering device, and many other game-changing creations […]

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Herschell Filipowski

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Herschell Filipowski About 1860 the English mathematician, linguist, and editor Herschell Filipowski designed and published his Calculating Machine for Multiplication and Division, similar to the Napier’s Bones, but actually based on the Slonimsky’s theorem. It seems only 2 contrivances survived to our time (see the photos below), one at the Science Museum, London, and another […]

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George Farmer

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History of Computers and Computing, Calculating tools, Gadgets, George Farmer George Farmer In 1867, George Farmer of Flint, Michigan, patented a tallying instrument (US patent 69647). The patent model of the device (up to 1880, the US Patent Office required inventors to submit a model with their patent application) is still preserved in the National […]

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Marshall Cram

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History of Computers and Computing, Calculating tools, Gadgets, Marshall Cram Marshall Cram On 7 August, 1877, Marshall Moses Cram (1851-1938) of Mankato, Minnesota, received a U.S. Patent 193853 for an adding machine, similar to the later Centigrpah of Arthur Shattuck. In contrast with Centigrpah however, the device of Cram remained only on paper. Marshall Cram […]

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Charles Cotterell

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History of Computers and Computing, Calculating tools, Gadgets, Charles Cotterell Charles Cotterell’s Arithmetical Compendium In 1667, Sir Charles Cotterell (1615–1701), an English courtier and translator, suggested a calculating instrument, called Arithmetical Compendium (Instrument for Arithmetick). It was a combination of Napier’s rods with a bead abacus, used to avoid writing down the partial products of […]

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Alexander Davies

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History of Computers and Computing, Calculating tools, Gadgets, Alexander Davies Alexander Davies On 18 June, 1867, Alexander Davies from Cleveland, Ohio, received a U.S. Patent 65883 for a slide bar adder, similar to the adding device of George Fowler, patented in 1863. The patent model of the device (see the lower photo) survived to our […]

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Claude Dechales

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Claude Dechales The French Jesuit mathematician Claude Dechales (1621–1678) was best remembered for his book Cursus seu mundus mathematicus, a complete course of mathematics, published in Lyons in 1674. Dechales published also several other books, and in one of them—L’ art de naviger demontré par principes & confirmé par plusiers observations tirées de l’experience, published […]

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Charles Corliss

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Charles Corliss In 1868, Charles Corliss, a farmer and landowner from Haverhill, Massachusetts, received two patents (one of the patents is granted to him and Nelson Spofford, another inventor from Haverhill, who was a holder of quite a few US patents for various devices) for instruments for adding and registering numbers (US patents US79209 and […]

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Cathrinus Nikolay Arbo Collett

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History of Computers and Computing, Calculating tools, Gadgets, Cathrinus Nikolay Arbo Collett Cathrinus Nikolay Arbo Collett In late 1860s, Cathrinus Nikolay Arbo Collett (see biography of Cathrinus Collett), a young Norwegian civil (railway) engineer, at that time working as an assistant and later a chief of the investigations department of Norwegian State Railways in Kristiania […]

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