Handbook on Engineering: The Practical Care and Management of Dynamos, Motors, Boilers, Engines, Pumps, Inspirators and Injectors, Refrigerating Machinery, Hydraulic Elevators ... Air Compressors ... and All Branches of Steam Engineering

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H.C. Tulley & Company, 1902 - 906 páginas
 

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Contenido

CHAPTER VI
64
Motors and their connections
73
Directions for running dynamos and motors
80
If the commutated coil etc
86
to
92
The effect of the displacement of the armature 91 to
98
General data on bipolar Brush arc generators
106
PAGE
111
Connections of Brush controller
118
regulator for multipolar Brush arc generators
124
Table showing relative resistance of metals at temperature of 70
130
Testing arc light dynamos
137
Some troubles which may be met and their causes reversal
142
View of the back of switchboard
148
Table of magnetizing force in ampere turns required per inch
159
INCANDESCENT WIRING TABLES
168
Approximate weight of 0 K triple braided weatherproof copper
174
The gain by expansion
183
Lubrication of an engine
186
Eccentric straps
192
View of tandem compound engine and its foundation
198
CHAPTER
205
Adjustment with two eccentrics
215
The compound engine
222
Horse power of compound engine
232
Setting the piston type of valve
238
How to set a slide valve in a hurry
239
Flat valve riding cutoff
245
Table of cutoff in parts of the stroke
251
Rules for weights of flywheels
253
Specifications for centrally balanced Centrifugal Inertia Governor 273
273
The McIntosh and Seymour High Speed engine
281
Instructions for indicating Ideal engines
291
Instructions for starting and operating a Westinghouse Compound
307
Setting a plain slide valve with link motion
313
The flywheel
315
View of a slide valve engine showing the point of taking steam
321
Economy in steam power plants
330
Slide valve engines
337
CHAPTER XIV
345
Calculating mean effective pressure
351
A card from a Corliss engine
357
How to take an indicator diagram
365
Cards from Eclipse ice machine plant 371
371
CHAPTER XV
380
How to line the engine with a shaft to which it is to be coupled
387
CHAPTER XVI
398
The rating of boilers
404
Code of rules for making boiler tests
415
Selection of a boiler
422
The care and management of a boiler
433
Zigzag riveting and chain riveting 468
468
Boiler stays 474
474
Thickness of material required for tubes 481
481
Pulsation in steam boilers 487
487
Table of the rise of safety valves
494
Miscellaneous pump questions and answers 559 and 603
567
Pumps refusing to lift water
577
Table of decimal equivalents of 16ths 32nds and 64ths of an inch
583
How water may be wasted
589
THE INJECTOR AND INSPIRATOR
591
Care and management of injectors 599
597
Care and management of a steam engine
602
Steam pump problems
603
CHAPTER XXI
619
Insulation of buildings
626
To charge the system with ammonia
632
Diagram of the De La Vergne system
638
CHAPTER XXII
646
What is valve lead 653 666 668
653
Direct and indirect valve motion
668
Simplicity in steam piping
674
Table showing gain in use of feed water heaters and percentage
680
Pure water
681
Melting point of metals
687
to
694
To find the chordal pitch 699 to
700
Construction of gearing
706
Table of weight of a square foot of siieet iron
712
ELECTRIC ELEVATORS
716
View of connections of gravity motor controller to elevator
722
Direct connected electric elevators
730
The switch lever
736
How to start the car
743
The slack cable switch
749
The Sprague Electric Co s elevators
756
View of operative circuits for Sprague screw elevator
762
HYDRAULIC ELEVATORS
769
Automatic stop valve
776
CHAPTER XXVII
788
Transmitting power of belts
795
Contents of a cylinder in cubic feet for each foot in length
801
The Pohle air lift system
807
The metric system
809
CHAPTER XXIX
815
Diagrams showing the relations between alternating currents
821
Polyphase currents
832
By the use of condensers etc
840
The action in a transformer
846
Alternating current generators
852
What is work 251
856
An inductor alternator
858
Compensating and compounding alternators
864
Field magnetizing currents
865
Induction and other types of motors
871
Induction motors if very small
877
Parallel running of alternators
887
Horse power of an engine 252
898
Rules and problems anent steam boilers 536
903
Table of transmission of power by wire ropes 715 and 814
905
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Página 395 - CALORIE is the amount of heat required to raise the temperature of one kilogram of water one degree centigrade.
Página 402 - The ash pits should be thoroughly cleaned at once after starting. Before the end of the test the fires should be burned low, just as before the start, and the fires cleaned in such a manner as to leave the same amount of fire, and in the same condition, on the grates as at the start.
Página 322 - ... to be Used in the computation. All surfaces below the mean water level which have water on one side and products of combustion on the other are to be considered as water-heating surface, and all surfaces above the mean water level which have steam on one side and products of combustion on the other are to be considered as superheating surface.
Página 403 - The coal should be weighed and delivered to the fireman in equal proportions, each sufficient for not more than one hour's run, and a fresh portion should not be delivered until the previous one has all been fired. The time required to consume each portion should be noted, the time being recorded at the instant of firing the last of each portion.
Página 404 - ... corrected according to the average results of the calorimeter tests. On account of the difficulty of securing accuracy in these tests the greatest care should be taken in the measurements of weights and temperatures. The thermometers should be accurate...
Página 404 - The analysis of the flue gases is an especially valuable method of determining the relative value of different methods of firing, or of different kinds of furnaces. In making these analyses great care should be taken to procure average samples, since the composition is apt to vary at different points of the flue...
Página 401 - ... while the water is in a quiescent state, just before lighting the fire. At the end of the test remove the whole fire...
Página 777 - Divide the number of square inches of belt in contact with the pulley by two, multiply this quotient by velocity of the belt in feet per minute and divide the product by 33,000; the quotient is the number of horse-power.
Página 86 - If the break is in the coil itself, rewinding is generally the only cure. But this may be remedied temporarily by connecting together by wire or solder the two commutator-bars or coil terminals between which the break exists.
Página 403 - ... other boilers, so that in case of a rise in pressure the other boilers may blow off, and the pressure be reduced by closing their dampers, allowing the damper of the boiler being tested to remain

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