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 26
Page 76
... pounds per square inch , that a cast iron ring can be revolved safely at a maximum lineal speed of 8000 feet per min- ute , or thereabouts , which at once places a limitation upon the rotative speed of the fly - wheel , and demands ...
... pounds per square inch , that a cast iron ring can be revolved safely at a maximum lineal speed of 8000 feet per min- ute , or thereabouts , which at once places a limitation upon the rotative speed of the fly - wheel , and demands ...
Page 77
... Of course , as the tensile strength of the material of which the fly- wheel is made is increased , the lineal speed at which it can be driven is increased . If we take 5000 pounds per square inch as the safe tensile strength of the steel ...
... Of course , as the tensile strength of the material of which the fly- wheel is made is increased , the lineal speed at which it can be driven is increased . If we take 5000 pounds per square inch as the safe tensile strength of the steel ...
Page 78
... pounds per square- inch . Let P inch . - Let B = inch . off . Let e = Let V = the initial absolute pressure of steam in pounds per square the back absolute pressure on piston in pounds per square the fractional part of the stroke at ...
... pounds per square- inch . Let P inch . - Let B = inch . off . Let e = Let V = the initial absolute pressure of steam in pounds per square the back absolute pressure on piston in pounds per square the fractional part of the stroke at ...
Page 86
... of being absolutely sharp ; and what breadth it should have is a matter not easily determined . To illus- trate , take an example of a non - condensing engine working under 90 pounds absolute pressure of admission per square inch ...
... of being absolutely sharp ; and what breadth it should have is a matter not easily determined . To illus- trate , take an example of a non - condensing engine working under 90 pounds absolute pressure of admission per square inch ...
Page 110
... pounds per square inch , and is delivered thence into the first and smallest cylinder at that pressure . After use ... per square inch in the air reservoir , and at stopping this had become reduced to 820 pounds , showing that only 180 ...
... pounds per square inch , and is delivered thence into the first and smallest cylinder at that pressure . After use ... per square inch in the air reservoir , and at stopping this had become reduced to 820 pounds , showing that only 180 ...
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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