Journal of the Franklin Institute, 80. sējums;110. sējumsFranklin 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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1.–5. rezultāts no 27.
9. lappuse
... limit of space afforded . The ordinary locomotive boilers do not exceed 1100 feet of heating surface and 20 square feet of fire grate . In this new locomotive the boiler has about 1400 square feet of heating surface and about 56 square ...
... limit of space afforded . The ordinary locomotive boilers do not exceed 1100 feet of heating surface and 20 square feet of fire grate . In this new locomotive the boiler has about 1400 square feet of heating surface and about 56 square ...
13. lappuse
... limit of speed which a railway train may attain . Speed is a question of power and resistance , and velocities greater than 80 miles an hour , which is about 7000 feet per minute , are in use in various kinds of machinery ,. to wit ...
... limit of speed which a railway train may attain . Speed is a question of power and resistance , and velocities greater than 80 miles an hour , which is about 7000 feet per minute , are in use in various kinds of machinery ,. to wit ...
32. lappuse
... limits of ordinary practice . During the many experiments on boiler vaporization made or inves- tigated by the writer an inferior result was always found with boilers of the same type , having the same proportions of heating to grate ...
... limits of ordinary practice . During the many experiments on boiler vaporization made or inves- tigated by the writer an inferior result was always found with boilers of the same type , having the same proportions of heating to grate ...
66. lappuse
... limit ; but , on the contrary , that they often prove a valuable aid to digestion , making the wheels of life to run more smoothly without in any way injuring its machinery , an opinion in which temperance people will be sure to differ ...
... limit ; but , on the contrary , that they often prove a valuable aid to digestion , making the wheels of life to run more smoothly without in any way injuring its machinery , an opinion in which temperance people will be sure to differ ...
69. lappuse
... limits ) to any desired depth . The motor may also be adapted for ditching , grinding , threshing , sawing , etc. The President inquired whether the machine described had ever been built . Mr. Woodruff replied that it had not , but he ...
... limits ) to any desired depth . The motor may also be adapted for ditching , grinding , threshing , sawing , etc. The President inquired whether the machine described had ever been built . Mr. Woodruff replied that it had not , but he ...
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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