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 30
Page 59
... electric current through the body , or in the luminous organ , thus producing a brilliant phosphorescence . When the insect thus prepared was plunged into carbonic acid , or into either of the inert gases nitrogen and hydrogen , the ...
... electric current through the body , or in the luminous organ , thus producing a brilliant phosphorescence . When the insect thus prepared was plunged into carbonic acid , or into either of the inert gases nitrogen and hydrogen , the ...
Page 115
... electric locomotive will compete with the steam locomotive on long lines of railway , any more than the electric light will at present rival gas for general use , but it may prove very serviceable under special circumstances , and on ...
... electric locomotive will compete with the steam locomotive on long lines of railway , any more than the electric light will at present rival gas for general use , but it may prove very serviceable under special circumstances , and on ...
Page 138
... light equal t sunlight . Even in a room , lit up in an unusually brilliant ... electric and magnesium lights , contain much fewer chemical rays that ... light being poorer in chemical rays than sunlight , should be preferred by workers ...
... light equal t sunlight . Even in a room , lit up in an unusually brilliant ... electric and magnesium lights , contain much fewer chemical rays that ... light being poorer in chemical rays than sunlight , should be preferred by workers ...
Page 142
... Electric Sun. Lontin has been exhibiting in the building of the Industrial Exhibition in the Champs Elysées , Paris , a circular electric light , formed by four voltaic arches . He uses four carbons placed radially , the two which are ...
... Electric Sun. Lontin has been exhibiting in the building of the Industrial Exhibition in the Champs Elysées , Paris , a circular electric light , formed by four voltaic arches . He uses four carbons placed radially , the two which are ...
Page 144
... Electric Lighting . By Robert Briggs , C.E .......... Direct Action of Water ... Light , Copse and Mould on Forest Growth , 213. Bronzing Liquid , 214 ... Light on Size of Leaves , 215. New Welding Process , 216. Accuracy of Glass Gauge ...
... Electric Lighting . By Robert Briggs , C.E .......... Direct Action of Water ... Light , Copse and Mould on Forest Growth , 213. Bronzing Liquid , 214 ... Light on Size of Leaves , 215. New Welding Process , 216. Accuracy of Glass Gauge ...
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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