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 1-5 of 61
Page 1
... known geared or tooth - wheel dynamometer in common use in this country . The principle involved in the construction of this dynamometer ,. that is , the weighing of the resulting stress from a deflected cord or band , and thus ...
... known geared or tooth - wheel dynamometer in common use in this country . The principle involved in the construction of this dynamometer ,. that is , the weighing of the resulting stress from a deflected cord or band , and thus ...
Page 18
... known to have worked up to quite 1000 indicated horse - power . At 60 miles an hour , 1000 horse - power would corres- pond to a mean effective pressure of 77.16 pounds per square inch upon the pistons ( 1851 ) . The difficulties so far ...
... known to have worked up to quite 1000 indicated horse - power . At 60 miles an hour , 1000 horse - power would corres- pond to a mean effective pressure of 77.16 pounds per square inch upon the pistons ( 1851 ) . The difficulties so far ...
Page 32
... known done ; and he has always observed that , after a short period of use , the masonry was more or less warped by heat , and cracked , the inleakage of air becom- ing correspondingly increased . When a boiler set in brick - work is ...
... known done ; and he has always observed that , after a short period of use , the masonry was more or less warped by heat , and cracked , the inleakage of air becom- ing correspondingly increased . When a boiler set in brick - work is ...
Page 42
... known in advance , the operation can be governed by the length of time after the disappearance of the spectrum and the cessa- tion of the flame . A small ingot is then taken by means of a ladle which is plunged into the converter . This ...
... known in advance , the operation can be governed by the length of time after the disappearance of the spectrum and the cessa- tion of the flame . A small ingot is then taken by means of a ladle which is plunged into the converter . This ...
Page 47
... known wabbling side motions which so greatly interfere with its cor- rectness . Pendulums have been suspended on one as well as on two springs , the latter of which is almost entirely abandoned . None of the sus- pensions so far had a ...
... known wabbling side motions which so greatly interfere with its cor- rectness . Pendulums have been suspended on one as well as on two springs , the latter of which is almost entirely abandoned . None of the sus- pensions so far had a ...
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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