See _Governors_
Protection of generators from frost,
holders from frost,
Puratylene,
Purchase of a generator,
carbide, regulations as to,
Purification by liquids and solids,
in portable lamps,
necessary extent of,
reasons for,
regulations as to,
speed of,
Purified acetylene, chlorine in,
hydrochloric acid in,
phosphorus in,
sulphur in,
Purifiers and holder, relative positions of,
construction of,
duplication of,
exhaustion of,
foul, emptying of,
loss of pressure in,
mechanical, for acetylene,
Purifying materials, density of,
efficiency of,
quantity required,
Pyralid, destruction of the,
Q
Quality of carbide, regulations as to,
Quicklime. See _Calcium oxide_
R
Radiant efficiency of acetylene,
heat,
Railway lighting by acetylene,
Ramie mantles for acetylene,
Range of explosibility, meaning of term,
of acetylene,
Rat-tail burner,
Reactions between copper and acetylene,
chemical, of acetylene,
physical, of acetylene,
Reaction grids in generators,
Read and Jacobs. See _Bradley_
Rod lead for acetylene joints,
Regulations, American (National Board of Fire Underwriters of U.
Pages:
762
763
764
765
766
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768
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