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Company in Europe replaced a papier-mache obturating cup behind the bagged charge in early bag-loaded RBLs with a metallic gas ring and patented his invention in 1861, later perfecting it in 1864 and 1866; most countries paid royalties to
Broadwell for the design, but in Germany the Krupp company
59:, and abuts against a flat plate. When the gun is fired, the rapidly expanding gases produced by the combustion of gunpowder force the Broadwell Ring against the plate, sealing the end of the bore against escape and directing the full force of the explosion toward propelling the
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or drawn brass cases, when like all other metallic obturators it became more liable to damage after the introduction of smokeless powder. However, the
British
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103:"Reports on the Vienna Universal Exhibition of 1873: Presented to Both Houses of Parliament by Command of Her Majesty"
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In late 1870s-1880s it was superseded either by a plastic obturating ring from asbestos and grease invented by
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MODERN ORDNANCE, A paper read Feb. 8, 1882, before the
Society of Arts, London, By COLONEL MAITLAND
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The
Project Gutenberg eBook of Scientific American Supplement, March 18, 1882
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The
Broadwell ring is readily removed and replaced for maintenance purposes.
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117:"The Project Gutenberg EBook of Scientific American Supplement, No. 324"
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43:(usually in sliding wedge breechlocks). American engineer
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55:The ring sits in a recess at the rear end of the
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77:series of 120 mm tank guns as well as some
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52:copied it and used it without paying.
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200:. You can help Knowledge (XXG) by
159:s:Page:EB1911_-_Volume_20.djvu/233
47:who worked as sales agent for the
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39:in Continental Europe to ensure
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192:This article relating to
35:used in 1860s and 1870s
81:howitzers, such as the
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45:Lewis Wells Broadwell
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79:155 mm NATO
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241:Categories
127:2007-09-22
89:References
41:obturation
194:artillery
144:Archived
105:. 1874.
61:bullet
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83:FH70
57:bore
27:The
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20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
