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 59.
13. lappuse
... greater than 80 miles an hour , which is about 7000 feet per minute , are in use in various kinds of machinery ,. to wit : fan - blowers , circular saws , etc. The writer believes that before the expiration of five years , with the ...
... greater than 80 miles an hour , which is about 7000 feet per minute , are in use in various kinds of machinery ,. to wit : fan - blowers , circular saws , etc. The writer believes that before the expiration of five years , with the ...
21. lappuse
... greater , the time during which the apparatus is at work is diminished in the same proportion . The Pennsylvania Railway have had a number erected on their different lines , and their advantages are , that the size and weight of the ...
... greater , the time during which the apparatus is at work is diminished in the same proportion . The Pennsylvania Railway have had a number erected on their different lines , and their advantages are , that the size and weight of the ...
31. lappuse
... greater the rate of combustion in a boiler set in masonry the greater will be the absolute quantity of air inleaked , because the greater rate of combustion is necessarily associated with a less pressure inside the masonry , that of the ...
... greater the rate of combustion in a boiler set in masonry the greater will be the absolute quantity of air inleaked , because the greater rate of combustion is necessarily associated with a less pressure inside the masonry , that of the ...
32. lappuse
... greater with boilers having the least ratio of water - heating to grate surface , because in them the gases of combus- tion enter the chimney with the highest temperature , and the infiltered air carries off a correspondingly greater ...
... greater with boilers having the least ratio of water - heating to grate surface , because in them the gases of combus- tion enter the chimney with the highest temperature , and the infiltered air carries off a correspondingly greater ...
33. lappuse
... greater external surface than the second , and because the temperature of the gases of combustion are on one side of the setting , while in the case of the second the temperature in contact with the felt or other covering is only that ...
... greater external surface than the second , and because the temperature of the gases of combustion are on one side of the setting , while in the case of the second the temperature in contact with the felt or other covering is only that ...
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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