Average breaking and crush-
ing strains of iron and
steel, 379.
Babcock & Wilcox water tube
sectional boiler, illus-
trated and described,
224-226.
Balanced valves, 98.
Ball and socket bearing, 308,
economy, practical
measurement of, 87, 88.
economy, scientific meas
urement of, 86.
expansion of parts by
heat, 71, 72.
felting or covering, 345-
hogging of a, 72.
holes, illustrated and 12.
scribed, 83, 84.
inspectors, duties of, 227,
iron, standard of compar-
ison between different
brands, 77.
plate, legal gauge for
thickness of, 230.
legal test of, 230, 231.
stamping of, 227.
strength of, 69, 70.
table of width of
one-quarter of one
square inch of, 230.
tensile strength of,
227, 228.
pressure, rule for ascer-
taining, 232.
proportion, 174-178.
showing the best results,
93.
Boilers, cylindrical, 68–71.
experiments on, 72.
externally heated, U. S.
regulations for, 242.
foaming in, 390-393-
internally heated, U. S.
regulations for, 242.
position of cleaning
doors, 177.
settings for, 174-178.
steam, forms of, 68 85.
steam pressure allowed
on, table of, 250.
strength of, 76–85.
thickness of end plates
of, 72, 73.
vertical tubular, U. S. re-
striction in use of, 242.
with internal tubes, 70.
yacht, 329.
Bolts for boiler fronts, anchor-
Carbon and hydrogen, heat
given out in burning,
60.
evaporating power of, 61.
heating power of, 61.
Carbonate of magnesia cover-
ing, 350, 351.
Cast steel, to harden and tem-
per, 396, 397.
Caulking, 201, 202.
Chalmers-Spence patent cov-
ering, 351, 352.
Changes in steamboat rules,
Chemical combination, 59.
Chemical decomposition, 59.
Chimney, area of the, com-
pared with that of the
fire-grate, 65.
formula for computing
the height of, 66.
rule to insure the best pos-
sible draught in, 66.
value of a, in promoting
the draught of fire, 64,
65.
Chimneys, 370-374.
land, rule for proportion-
ing the dimensions of,
65.
Clyde or Scotch boiler, illus-
trated and described,
Chef Eve Calendar 201
Combustion, 59. 60.
chamber, 176.
Compositions in common use,
proportions of, 379, 380.
Compound condensing en-
gine, tandem, illus-
trated and described,
317-325.
engine, 101-105. - 255
calculation of work
done in an, illus-
trated and de-
scribed, 104-106.
tandem engines, result of
a four days' trial, 323.
Compressibility of matter,
xxxix.
Compression, advantages of,
158-160.
Condensation in differently
covered pipes, 354, 355.
of matter, xxxiii.
Condensing engines, 101-103.
action of, 375.
Connecting rod, 311, 32,
boxes, proper adjust-
ments of, 143.
proper weight of, 143.
Connery's concave system of
caulking, 201, 202.
Copper and tin, combinations
of, xxxvii.
Copper, characteristics
Crank pins, errors in cou-
struction of, 141, 142.
Crank shaft, strength of, com-
pared with the line
shaft, 161.
to calculate the diameter
of a, 160.170
Cross head, 311, 312.
pin, making of a, 141.
securing of piston rod to,
144-147.
Cylinder, admission of steam
to, 96.
emptying steam from,
116, 117.
exhausted steam in, 96.
filling of a, with steam,
116.
its jacket, ports, etc.,
151-153.
to find the mean pressure
on a, 258-262.
Cylinders for compound en-
gines, to find the diam-
eter of, 255-257.
Cylindrical boilers, 68–71.
Dash pot, illustrated and de-
scribed, 305-308.
Density, xxxix.
Diamonds, hardness of,
xxxvii.
Disengaging valve motions,
and their adjustment,
164-167.
Divisions of degrees of heat,
378.
Double slide valve, 155.
Drilling machine, Hoffman's,
described, 205, 206.
Driving belts, best results ob
tained from, 163. 177,
Felting or covering, boiler,
345-363.
Fire grate, required area of,
for each horse power,
65.
requisite chimney area
for a, 65.
temperature of, 384, 385.
Fixing the number of tubes,
217-221.
Flanged seam, first use of, 74.
Flanging by hand, 202.
by machinery, 203.
Flat surfaces, staying of, 84.
Flow of steam from a given
orifice, 366.
of steam through pipes,
368-370.
Fossil meal pipe covering,
352-353.
Flue boilers, 195, 196.
Flues and tubes, locating of,
corrugated furnace, U. S.
regulations for, 240-
242.
lap welded, U. S. regula-
tions for, 236–240.
riveted, U. S. rules for,
233-236.
vs. tubes, 194–196.
Fluids, porosity of, xxx.
Foaming in boilers, 390-393.
Forms of steam boilers, 68-85.
Foundation, 100, 101.
Fuel, economical improve
ment in use of, 52, 53.
waste of, modes of, 63, 64.
Furnace boiler, burning of
fuel in a, 59-67.
flues, collapsing of, 73.
corrugated, U. S. reg-
ulations for, 240-
etc., 200-202.
Harden and temper
steel, 396, 397.
Hardness of substances, table
of, xlviii, xlix.
Heat, absorption of, in enter-
ing a body, 56, 57.
causes of the loss of, in
Loilers, 90-95.
consumption of, in effect-
ing mechanical work,
54.
divisions of degrees of,
378.
dynamical theory of, 53-
58.
effect of, 71-76.
engine, function of, 51.
evolution of, proportion-
ate to the mechanical
force expended, 53, 54.
generated by percussion
of bodies, 56.
given out in the burning
of hydrogen and car-
bon, 60.
influence of, on matter,
xxxii, xxxiii.
latent, definition of, 57.
loss of, lessened by heat-
ing the feed water, 66.
mechanical equivalent of,
54, 55.
produced by falling bod
ies, 56.
utilization of, 89,90.
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