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 6-10 of 42
Page 70
... apparatus is quite simple , and adds very little to the cost of the boxes . Weston's differential pulley blocks , both direct and geared , were shown . By their use a man can lift from 70 [ Jour . Frank . Inst . , Proceedings , etc.
... apparatus is quite simple , and adds very little to the cost of the boxes . Weston's differential pulley blocks , both direct and geared , were shown . By their use a man can lift from 70 [ Jour . Frank . Inst . , Proceedings , etc.
Page 75
... - tion far below the 3 to 5 per cent . formerly stated by Morin as a mini- mum , provided a continuous lubricating apparatus is used with good * sperm oil , and it will be found that Aug. , 1880. ] 75 Limitations of the Steam Engine .
... - tion far below the 3 to 5 per cent . formerly stated by Morin as a mini- mum , provided a continuous lubricating apparatus is used with good * sperm oil , and it will be found that Aug. , 1880. ] 75 Limitations of the Steam Engine .
Page 112
... apparatus the current was supplied by a battery , a fact which , to- gether with the imperfect state of electric science at the time , doubtless caused its failure . Another claimant for priority of invention of the electric railway is ...
... apparatus the current was supplied by a battery , a fact which , to- gether with the imperfect state of electric science at the time , doubtless caused its failure . Another claimant for priority of invention of the electric railway is ...
Page 121
... apparatus SCUP & WEST . PHILA . Fig . 1 . differs from all other compressors in being so arranged that the mica cover is fixed and immovable , while the lower , thicker plate of glass is moved up and down by means of a screw nut and ...
... apparatus SCUP & WEST . PHILA . Fig . 1 . differs from all other compressors in being so arranged that the mica cover is fixed and immovable , while the lower , thicker plate of glass is moved up and down by means of a screw nut and ...
Page 122
... apparatus , the student will have acquired a mental image or epitome of the morphology and physiology of that great group of jointed animals , the articulates of the naturalist . Equally good results were got by its use in studying the ...
... apparatus , the student will have acquired a mental image or epitome of the morphology and physiology of that great group of jointed animals , the articulates of the naturalist . Equally good results were got by its use in studying the ...
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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