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While working on the sandblasting process, he was also engaged in the working of stone, which caused him to invent a production method for iron shot - pouring a stream of molten metal onto a revolving surface, from which the globules would be propelled into cold water (US patent 187,239, 1872). This
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process and filed a patent for it in the US (US patent 108,408.), detailing many of the applications for which this technique is uniquely suited, such as sharpening files, engraving bottles, cleaning boilers or bringing out the grain in wood. Later that year a patent was issued in the UK.
218:, where he was graduated with a degree in law in 1839, though he never practiced this profession. With his brother, Richard, he spent much time before the war journeying through Europe, visiting laboratories, chemical works and mills. He was elected as a member to the
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334:, which became the hub of the sand blasting industry in Great Britain. This lastly formed company, later called Wheelabrator Tilghman, and since 2005, Wheelabrator Group, still trades.
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His first company was formed with his brother in
Philadelphia—B. C. & R. A. Tilghman—for the production of chilled iron shot for the stone industry. Around 1879, Benjamin moved to
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Legend has it that
Tilghman had seen the effect of wind-blown sand on windows in the desert while a general in the army, and that this was the basis of his sandblasting invention.
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Around 1880, he invented the sulfite method of fiber reduction for paper production; this was a critical part of the production of paper from wood pulp, competing with the
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He refined the technique for various purposes, and in 1877 took out a patent (US patent 252,279) for sharpening files, which he marketed as "Liquid
Grindstone".
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to be propelled "rocket fashion" by a slow burning powder. It was not successful. He was assisted in this venture by his nephew, Benjamin C. Tilghman III.
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forming a new company, Tilghman's Patent Sand Blast Co. at Gray's Inn Road. This company used one of his patent methods for sharpening
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199:, on October 26, 1821, the third child of Benjamin and Anne Marie (McMurtie). His father was descended from Richard Tilghman, a
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179:(October 26, 1821 — July 3, 1901) was an American soldier and inventor. He is best known as the inventor of the process of
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277:, he was awarded the institute's Great Medal of Honor for his invention; shortly after, he was also awarded the
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in 1863 and sent home to recover. Upon his recovery, he accepted the role of
Colonel and commander of the 3rd
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386:, "Improvement in cutting in stone and other hard substances" (1872) - cutting stone by means of steel shot
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564:"Studies in the Land: The Northeast Corner" by David C Smith (Routlegde 2002) - quoted from Google Books
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327:, being resident there around 1885, having invested in the machine tool company George Richards Ltd.
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U.S. Patent no. 702,040, "Sand-blast tumbling barrel" (attributed to "Benjamin C. Tilghman Jr.")
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Brigadier
General, US Volunteers on April 13, 1865 for "meritorious services".
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539:"A tribute", citing the National Cyclopedia of American Biography
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482:"Inventors" page 374. Find-A-Grave claims he commanded the 29th.
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U.S. patent No. 416,873 "Cutting metal by electricity" (1889)
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UK Patent no. 13,510 (1885) - roughening iron and steel rolls
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He died on July 3, 1901, and is buried in the churchyard of
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U.S. Patent No. 187,239 - production of iron shot (1872)
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material was in great demand for the cutting of stone.
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U.S. Patent no. 252,279 - sharpening of files (1877)
330:In 1879, he opened the gates of his new works in
686:People of Pennsylvania in the American Civil War
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242:. He was severely wounded in the thigh at the
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661:University of Pennsylvania Law School alumni
500:Find-A-Grave biography, "Inventors" page 374
681:Burials at the Church of St. James the Less
291:Further patents and developments followed.
275:American Institute of the City of New York
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491:"A tribute", page 1; "Inventors" page 374
238:, rising to Colonel and commander of the
417:UK Patent no. 2147 (1870) - sandblasting
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420:UK Patent no. 2900 (1870) - blast wheel
273:In 1871, at the 40th Exhibition of the
203:in the British Navy; he was related to
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172:Coat of Arms of Benjamin Chew Tilghman
572:"A Tribute to Benjamin Chew Tilghman"
258:Invention of the sandblasting process
234:, he volunteered as a Captain in the
696:19th-century American businesspeople
691:Military personnel from Philadelphia
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315:, the centre of steel production in
240:29th Pennsylvania Volunteer Infantry
603:. New York: Henry Holt and Company.
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236:26th Pennsylvania Infantry Regiment
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207:, Chief Justice of Philadelphia.
656:Businesspeople from Philadelphia
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353:He also patented a design for a
319:at the time, and later moved to
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671:19th-century American inventors
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530:"Studies in the Land", page 83
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220:American Philosophical Society
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265:Around 1870, he invented the
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16:American soldier and inventor
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362:Church of St. James the Less
248:United States Colored Troops
86:Church of St. James the Less
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676:Engineers from Pennsylvania
125:Inventor of the process of
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631:Wheelabrator Group website
600:Leading American Inventors
311:. From London he moved to
244:Battle of Chancellorsville
216:University of Pennsylvania
104:University of Pennsylvania
74:Philadelphia, Pennsylvania
51:Philadelphia, Pennsylvania
210:Tilghman was educated at
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510:U.S. Patent No. 108,408
407:U.S. Patent No. RE7,499
402:U.S. Patent No. 446,988
390:U.S. Patent No. 174,167
384:U.S. Patent No. 133,501
378:U.S. Patent No. 108,408
230:At the outbreak of the
570:H. J. Plaster (1993).
332:Broadheath, Altrincham
177:Benjamin Chew Tilghman
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23:Benjamin Chew Tilghman
597:Iles, George (1912).
578:: 2–9. Archived from
548:"Inventors", page 391
440:"Inventors", page 370
380:- sandblasting (1870)
279:Elliott Cresson Medal
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147:Elliott Cresson Medal
35:Photo of Tilghman by
464:search.amphilsoc.org
460:"APS Member History"
666:Union Army colonels
521:"A tribute", page 3
295:Commercial ventures
37:Frederick Gutekunst
283:Franklin Institute
232:American Civil War
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576:Conf Proc: ICSP-5
214:and later at the
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338:Other inventions
226:Civil War career
205:William Tilghman
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47:October 26, 1821
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267:Sandblasting
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197:Pennsylvania
193:Philadelphia
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181:sandblasting
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127:sandblasting
82:Burial place
62:July 3, 1901
706:Chew family
651:1901 deaths
646:1821 births
449:"A tribute"
640:Categories
589:2006-10-09
559:References
469:2021-04-28
321:Altrincham
187:Early life
114:Occupation
66:1901-07-04
428:Footnotes
313:Sheffield
252:brevetted
250:. He was
222:in 1871.
153:Signature
133:Relatives
92:Education
325:Cheshire
117:Inventor
355:torpedo
317:England
281:by the
201:surgeon
64: (
301:London
143:Awards
106:(1839)
76:, U.S.
53:, U.S.
583:(PDF)
309:rasps
305:files
307:and
59:Died
44:Born
364:in
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