Journal of the Franklin Institute, Volume 80; Volume 110Franklin Institute, 1880 Vols. 1-69 include more or less complete patent reports of the U. S. Patent Office for years 1825-1859. cf. Index to v. 1-120 of the Journal, p. [415] |
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Results 1-5 of 62
Page 1
... machine , has been prepared by the writer of this article , to meet the demand for a more quiet and equally reliable ... machine , using the general details of shafting and pulleys of American practice , and the only improvement or ...
... machine , has been prepared by the writer of this article , to meet the demand for a more quiet and equally reliable ... machine , using the general details of shafting and pulleys of American practice , and the only improvement or ...
Page 5
... machine itself consists of a bed framing of wood , joint - bolted ' together , upon which is mounted a high table , also joint - bolted through- out . The bed frame carries two pairs of inverted hangers , 24 - inch shaft , 20 - inch ...
... machine itself consists of a bed framing of wood , joint - bolted ' together , upon which is mounted a high table , also joint - bolted through- out . The bed frame carries two pairs of inverted hangers , 24 - inch shaft , 20 - inch ...
Page 21
... machine it was found impossible , even with the greatest care , to keep the arbors clean , so as to prevent the injury of the goods by grease - spots from the lubricating oil . The difficulty was entirely obviated by the use of metaline ...
... machine it was found impossible , even with the greatest care , to keep the arbors clean , so as to prevent the injury of the goods by grease - spots from the lubricating oil . The difficulty was entirely obviated by the use of metaline ...
Page 50
... machine was ever used I do not know , but it is of interest as showing that most of subsequent improvements are not new in principle . Coming to more recent times , we have the Richardson process of blowing air into the molten bath ...
... machine was ever used I do not know , but it is of interest as showing that most of subsequent improvements are not new in principle . Coming to more recent times , we have the Richardson process of blowing air into the molten bath ...
Page 51
... machines were brought out differing in details . The one of most novel con- struction was the Godfrey - Howson furnace , which had but one -opening into which the heat enters and the products of combustion escape , a blowpipe on a large ...
... machines were brought out differing in details . The one of most novel con- struction was the Godfrey - Howson furnace , which had but one -opening into which the heat enters and the products of combustion escape , a blowpipe on a large ...
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acid Anthracite apparatus battery bobbin boiler bone oil carbon carbonic acid cent chamber coal gas combustion compression constructed containing cubic cylinder diameter dimensions drawing-roller dy dz dynamo-electric effect elastic elastic limit electric light employed experiments feet fibres Franklin Institute furnace gases gills give heating surface horizontal horse-power hour increase ingot iron jute length locomotive machine magnet manganese matter means mechanical ment metal metric metric system miles miles per hour millimetre minute motion nuts obtained ordinary oxide oxygen paraffine Patents Perkins Engine phosphorus pins piston placed plate pound of coal pounds per square practical pressure produced proportion quantity Rendus resistance revolutions per minute rollers screws selenium shaft shell side silica slag sliver speed square inch steam dome steam engine steel strain Sulphur temperature tion tons tubes valve vaporized velocity vertical vessel weight wheels wire