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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Page 50
... mechanical agency upon a stationary hearth , or by giving motion to the whole body of the furnace . One of the first attempts for lessening the labor of the puddler is recorded in a drawing at Dowlais which has been traced back to the ...
... mechanical agency upon a stationary hearth , or by giving motion to the whole body of the furnace . One of the first attempts for lessening the labor of the puddler is recorded in a drawing at Dowlais which has been traced back to the ...
Page 51
... mechanical details . Their object is to give an oscillating movement to a rabble of the ordinary shape by means of machinery , the puddler or helper merely guiding the rabble . The balling is accomplished in all cases by hand labor ...
... mechanical details . Their object is to give an oscillating movement to a rabble of the ordinary shape by means of machinery , the puddler or helper merely guiding the rabble . The balling is accomplished in all cases by hand labor ...
Page 52
... mechanical devices for accomplish- ing this object are found in the Frisbie & Sweet furnaces . The system has not come into general use . An objection in the case of coal forming clinkers is , that the clinkers are forced to the top of ...
... mechanical devices for accomplish- ing this object are found in the Frisbie & Sweet furnaces . The system has not come into general use . An objection in the case of coal forming clinkers is , that the clinkers are forced to the top of ...
Page 54
... mechanical tests . Material thus obtained is compared with wrought iron made from anything and everything . No chemist mixes the- charge or analyzes the product , but a puddler is left to guard the interests at the most vital stage of ...
... mechanical tests . Material thus obtained is compared with wrought iron made from anything and everything . No chemist mixes the- charge or analyzes the product , but a puddler is left to guard the interests at the most vital stage of ...
Page 85
ECONOMICAL CUT - OFF IN STEAM ENGINES . BY S. W. ROBINSON Of Department of Mechanical Engineering , Ohio State University . Theoretically the most economical cut - off is readily seen to be that by which the steam at the instant of ...
ECONOMICAL CUT - OFF IN STEAM ENGINES . BY S. W. ROBINSON Of Department of Mechanical Engineering , Ohio State University . Theoretically the most economical cut - off is readily seen to be that by which the steam at the instant of ...
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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