(See _Overheating_)
on burners,
evolution of, in flames,
expansion of gaseous acetylene by,
liquid acetylene by,
from acetylene, production of,
latent. See _Latent heat_
loss of, from flames,
of chemical reactions,
of combustion of acetylene,
carbon,
carbon monoxide,
ethylene,
of formation of acetylene,
calcium carbide,
hydroxide,
oxide,
carbon dioxide,
monoxide,
ethylene,
water,
of hydration of calcium oxide,
of reaction between carbide and calcium hydroxide,
between carbide and water,
of solution of calcium hydroxide,
of vaporisation of carbon,
water,
radiant,
specific. See _Specific heat_
Heating apparatus for generator sheds,
Hefner unit,
Heil, atmospheric acetylene flame,
carburetted acetylene,
Heise, acetylene flame,
Hempel, enrichment of coal-gas,
Heratol,
Hess. See _Claude_
Hexachlorethane, production of,
High houses, supply of acetylene to,
Holder-bells, for testing mains,
supplying water to automatic generators,
weighting of,
Holder-seals, freezing of,
level of liquid in,
liquids in,
and pressure,
solubility of acetylene in,
use of floats in,
liquids in, for decomposing carbide,
oil in,
water in, for washing the gas,
Holders (gas) and generators, isolation of,
and pressure, relationship between,
and purifiers, relative position of,
exposed, roofs over,
false interiors for,
freezing of,
gauge of sheet-metal for,
loss of pressure in,
moistening of gas in,
of automatic generators,
preservation of, from corrosion,
situation of,
size of,
vent-pipes for,
value of,
Holders (displacement),
action of,
pressure given by,
(rising),
guides and counterpoises for,
pressure thrown by,
equalisation of,
tanks for,
Home Office, maximum pressure permitted by,
prohibition of air in acetylene by,
Committee, 1901, recommendations,
report,
Home Secretary's Orders.
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