Hand Book of Corliss Steam Engines |
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90 degrees adjust anchor bolts box pattern caliper cap stones center line CHAPTER clearance connecting rod CORLISS ENGINE CORLISS STEAM ENGINE Corliss valve crab-claw crank end crank shaft crank-pin cross cross-compound cross-head cubic cut-off cylinder head dash pot dead center diagram Diam diameter distance eccentric edges engine room equal exhaust valves fasten feet fitted fly wheel frame gine governor haust head end heat holes horse power INDICATOR DIAGRAMS justment length line A B line shaft load locate lower guide main bearing marks ment moved opening outboard bearing oval arm gear piston rod plumb line position pounds of coal pressure reach rod release revolution REYNOLDS-CORLISS ENGINE rocker-arm side slide-valve sole plate speed Square Inches steam port steam valve steel strap tandem compound targets template tion usual valve chamber valve gear vertical wrist plate wrist-pin
Popular passages
Page 135 - factor of equivalent evaporation " shows the proportionate cost in heat or fuel of producing steam at the given pressure as compared with atmospheric pressure. To ascertain the equivalent evaporation at any pressure, multiply the given evaporation by the factor of its pressure, and divide the product by the factor of the desired pressure. Each degree of difference in temperature of feed-water makes a difference of .00104 in the amount of evaporation. Hence, to ascertain the equivalent evaporation...
Page 5 - PREFACE. THE demand for an elementary treatise on the Corliss Engine has induced me to undertake the preparation of this volume. It is presented with no journalistic pretensions and with no ambition save the advancement and welfare of the younger members of our chosen calling. It has been the aim of the author to set forth the principles governing the subject matter in language free from unnecessary technicalities and as concisely as possible. While a few indicator diagrams have been introduced from...
Page 135 - total heat" being greater as the pressure increases, it will take more heat, and consequently more fuel, to make a pound of steam the higher the pressure. The table given on the following page shows the properties of steam at different pressures, from 1 Ib.
Page 136 - ... of difference in temperature of feed-water makes a difference of .00104 in the amount of evaporation. Hence, to ascertain the equivalent evaporation from any other temperature of feed than 212°, add to the factor given as many times .00104 as the temperature of feed-water is degrees below 212°. For other pressures than those given in the table, it will be practically correct to take the proportion of the difference between the nearest pressures given in the table.
Page 137 - ... by the height in feet and divide the product by 33,000 (an allowance of 25 per cent, should be added for water friction, and a further allowance of 25 per cent, for loss in steam cylinder).
Page 136 - ... by the factor of the desired pressure. Each degree of difference in temperature of feed-water makes a difference of .00104 in the amount of evaporation. Hence, to ascertain the equivalent evaporation from any other temperature of feed than 212°, add to the factor given as many times .00104 as the temperature of feed-water is degrees below 212°. For other pressures than those given...
Page 12 - ... two parts of clean, sharp sand, and one part of Portland cement, adding water in proper quantity and thoroughly mixing the material to give it the required consistency.
Page 135 - The following table gives the properties of steam at different pressures — from 1 Ib. to 400 Ibs. "total pressure," ie, above vacuum. The gauge pressure is about 15 .pounds less than the total pressure, so that in using this table, 15 must be added to the pressure as given by the steam gauge. The column of Temperatures gives the thermometric temperature of steam and boiling point at each pressure. The "factor of equivalent evaporation...
Page 43 - Mistakes are often made in constructing flues through not carrying them fast enough to the right or left, as the case may be, so as to...
Page 34 - ... efficiency will depend very largely on the accuracy with which this operation is performed. 62. Requirements. — An engine, in order to be in line, must fulfil the following requirements: 1. The center line of the shaft must be at right angles to the center line of the cylinder. 2. The wearing surfaces of the guides must be parallel to the center line of the cylinder. When two guides are used, they must be parallel to each other, and, at least in most designs, equidistant from the center line...