INDEX
Reading edition
A
Absorbent, acetone as an, 26, 31
— asbestos as an, 31
— charcoal as an, 31
— mineral wool as, 81
Acetone as an absorbent, 26, 31
Acetylene cylinders, construction of, 31
Acetylene gas, temperature of flame of, 1
Adapter, types of, 46
Aluminum, backing up in welding, 114
— charcoal in welding, 116
— contraction and expansion in welding, 116
— clamps, use of in welding, 115
— crank cases, welding, 118
— filler-rods in welding, 112, 115
— flux method of welding, 109, 111
— oxidation of bright surfaces in welding, 113
— preheating in welding, 116, 117
— preheating, method of, 52
— puddle and flux systems of welding compared, 111
— puddle method of welding, 109, 111
— strains, avoiding internal, 118
— suspension arm of crank case, repairing, 118
— tip used in welding, 109
— welding, 109-117
— welding from one side, 114
Apparatus, classes of welding, 19
— desirability of securing the best, 144
— emery wheel, need of, 41
— high-pressure welding, 20
— low-pressure welding, 19
— medium-pressure welding, 19
— metal top table, disadvantages of, 39
— mixing chambers, 21
— oils and grease to be avoided, 37
— oxy-acetylene, for cutting, 125
— regulator, 22
— — types of, 24
— required in welding, 19-26
— — replacing lost cross-bar, 46
— setting up, manner of, 31, 32
— shop equipment, 39, 43
— shutting off, procedure in, 35
Apparatus repairs, 44-50
— — adapters, types of, 46
— — gauges, operation of, 49
— — gauges, safety, 47, 48
— — hose clamps, 45
— — hose, repairing leaky, 45
— — leaks, method of locating, 44
— — leaky threads, repairing, 44
Asbestos as an absorbent, 31
— in aluminum welding, 116
— paper cover protection, 55
Automobile frame, welding, 91
Automobile, propeller shafts, welding, 95
Axles, automobile, welding, 95
B
Blow holes, causes of, 65
Boiler flues retipping, 98, 99
Boiler, “corrugated” patches, 102, 103
— “dished” patches in repairs to, 101
— “L” patches in repairing, 103
— repairing, 99-101
Borax as a brass flux, 107
Brass, alloy of, 106
— filler-rod in welding, 106
— flux in welding, 107
— fumes in welding, 108
— melting-point, 106
Brass welding, 106-108
Bronze for welding purposes, 123
— welding malleable iron with, 121
C
Carbon burning, 135-144
— — in gasoline engine, 136-139
— — theory of, 139
Carbonizing flame, 34
Cast iron, welding of, 58-80
— — — — blow holes, causes of, 65
— — — — charcoal as preheating agent, 76
— — — — combustion head of cylinder, repairing, 78, 79
— — — — contraction of metals in, prevention of, 71
— — — — expansion and contraction of metals, 65-67
— — — — filler rod, 61
— — — — flux a cleansing agent, 61
— — — — flux, manner of application of, 62
— — — — flux, simple substitute for, 61
— — — — gasoline engine cylinder block, repairing, 75, 76
— — — — gear wheel teeth, three ways of restoring, broken, 71-74
— — — — hardening parts by use of carbonizing flame, 74
— — — — lugs, welding on cylinder block, 80
— — — — methods of distinguishing metals, 60
— — — — preparations for, 67
— — — — procedure in, 63, 64, 67-70
— — — — successful weld, criterion of, 75
— — — — tip, size of, 63
Cast steel, procedure in welding of, 88
Charcoal as an absorbent, 31
— as preheating agent, 76
— in aluminum welding, 116
Clamps, inadvisable in welding aluminum, 115
Contraction and expansion in aluminum welding, 116
— — — in preheating, 53
— — — in welding steel, 87
Contraction of metal in welding, prevention of, 71
“Corrugated” patch, method of making, 102, 103
Crank cases, aluminum, repairing, 118
Crank shafts, welding methods, 93, 94
Crater, development and removal of, 88
Cross-bar, replacing lost, 46
Cutting by oxy-acetylene process, 6
Cutting with oxy-acetylene, 125-134
Cutting torch, welding torch and, compared, 127
Cylinder block, repairing cast-iron gasoline engine, 75, 76
Cylinder bore, device for polishing, 79, 80
Cylinders, acetone as absorbent in, 26
D
Decarbonization of automobile engines, 136, 139
Demand for oxy-acetylene operators, 17
“Dished” patch in boiler repairs, 101
E
Emery wheel, value of in welding shop, 41
Expansion and contraction of metals, 65-67
— — — in welding, 87
Explosions, precautions against, 37
F
Feather flame, 33, 35
Filler rod, 89
— — in brass welding, 106
— — in welding malleable iron, 122
— — metal in, 61
— — used in aluminum welding, 112
— — used in welding steel, 82, 91
Fire brick, in aluminum welding, 116
— — preheating oven of, 54
— — table, 39
Flame, carbonizing, 34
— feather, 33, 35
— neutral 33, 35
— oxidizing, 34
— torch, cutting under water with, 133
— varieties of, adjustment of, 32, 33
Flashbacks, causes of, 21, 22
— prevention of, 22
Flux, application, manner of, 62
— container, 42
— in brass welding, 107
— office of, 61
— substitute, a simple and effective, 61
G
Gasoline engine, carbon, how to remove from, 136-139
Gasoline tanks, necessity for caution in repairing, 103
Gauges, operation of, 49
— safety, 47, 48
Gear wheel teeth, three ways of restoring broken, 71-74
Glossary, 145-148
Goggles, eye, 35
H
Hardening parts through use of carbonizing flames, 74
Heat in welding malleable iron, 123
High-pressure regulated, 24
Hose, armored, used on oxygen line, 133
— clamps in repairing, 45
— leaky, 45
L
“L” patches, 103
Leaks, method of discovering, 44
— repairing threads, 44
Lectures, 149-166
Low-pressure regulator, 24
Lugs, welding on cylinder block, 80
M
“Maine,” battleship, wreck cut up with oxy-acetylene gas, 6
Malleable iron, bronze, welding with, 121, 123
— — clean surface, necessity of in welding, 122
— — heat in welding, 123
— — melting to be avoided, 121
— — preheating unusual, 123
— — steel strips in welding, 123
— — welding, 120-124
Metals, methods of distinguishing, 60, 87
Mineral wool as an absorbent, 31
Mixing chamber, 21
N
Needle valve, regrinding leaky, 26
Neutral flame, 33, 35
O
Oils and grease, importance of avoiding use of, 37
Operation in oxy-acetylene welding, 27-38
Operator, standing position of, relative to work, 32
Overhead welding, 105
Oxidation of bright surfaces in aluminum, 113
Oxidizing flame, 34
Oxy-acetylene, cutting metals with, 6
— flame, varieties of adjustment of, 32, 33
— in airplane construction, 9
— in automobile manufacture, 10
— in boiler shops, 10
— in brass and copper work, 10
— in commercial welding, 11
— in electric railways, 11
— in foundries, 11
— in lead burning, 12
— in lumber mills, 12
— in machine shops, 12
— in manufacturing, 12
— in mines, 13
— in pipe work, 13
— in plate welding, 13
— in power plants, 13
— in railroad work, 13
— in rolling mills, 14
— in sheet metal manufacture, 15
— in shipyards, 15
— in the forge shop, 11
— in tractor industry, 16
— lake boats cut apart by, 8
— operators, demand for, 17
— scrap cut up by, 6
— scrap yards, 15
— structural steel, 15
— torch as fire department tool, 7
— torch can be used under water, 8
— varied uses of, 9
Oxy-acetylene cutting, 125-134
— — apparatus for, 125
— — arrangement of oxygen line, 125
— — cutting torch, extemporizing a, 132
— — flame, cutting under water with, 133
— — flickering of oxygen jet, 127
— — high-pressure and low-pressure regulators compared, 127
— — hose, armored, in, 133
— — pressure of acetylene and oxygen, 129
— — steel and cast-iron, 131
— — torch in preparing steel, 131
— — torch, cutting and welding compared, 127
— — torch, using cutting, for welding purposes, 133
Oxy-acetylene welding, apparatus required in, 19-26
— — a fusing process, 62
— — auto-frame repairs, 4
— — classes of apparatus, 19
— — containers, seamless, made through use of, 3
— — definition of, 1
— — fire-brick table, 39
— — future of, 17
— — growth of process, 8
— — locomotive frames, 4
— — metal-top table, disadvantages of, 39
— — mixing chambers, 21
— — operation in, 27-38
— — principle of, 125
— — repairs through, 3, 5
— — shop equipment, 39-43
— — variety of applications of, 3
Oxygen, cylinders, 27
— gas, result of too much, 35
— office of in combustion, 27
— table of different pressures of, at various temperatures, 29
P
Preheating, aluminum, 117
— asbestos paper for oven, 55
— charcoal in, 53
— extraction and expansion in, 53
— drafts, protecting work from, in, 54
— fuels used in, 53
— in aluminum work, 116
— ovens, 56
— reasons for, 51
— setting up work, 56
— torch for, burning city gas, 54
— varied heats for different metals, 52
Preheating agencies, 51-57
— — fire-brick oven, 54
— — ovens, 55, 56
— — torch, burning city gas, 54
Propeller shafts, welding automobile, 95
Puddle method of welding aluminum, 109, 111
R
Regulator, care of, 25
— construction and action of, 22, 23
— types of, 24
Ring gears, building teeth on case-hardened, 96
Retort cement, 42
S
Sheet steel and iron, welding, 89
Ships, repairs to seized German by acetylene process, 5
Shop equipment, 39-43
— — blacksmith forge, 42
— — carbon rods and blocks, 43
— — emery wheel, 41
— — fire-brick table, 39
— — flux container, 42
— — retort cement, 42
— — ventilation, 43
Sparks, characteristic thrown off by emery wheel, 59
Spring’s, welding, futility of, 92, 93
Steel, automobile frame, welding, 91
— automobile axles, welding of, 95
— automobile propeller shafts, welding, 95
— boiler flues, retipping, 98, 99
— boiler repairs, 99-101
— cast, procedure in welding, 88
— construction and expansion in welding, 87
— “corrugated” patch, 102, 103
— crank-shafts, welding of, 93, 94
— craters, formation of, in welding, 88
— definition, 81
— “dished” patch in boiler repairs, 101
— filler-rod used in welding, 82
— filler-rod to be used in welding, 97
— flame control in welding, 81, 82
— hard spots, formation of in welding, 89
— heat treatment in welding unequal sized pieces, 97
— internal strains in welding, 100
— “L” patches, 103
— metals, methods of distinguishing in welding, 87
— methods of welding, 82-86
— outside appearances in welding, 87
— overhead welding, 105
— sheet, welding, 89
— speed required in welding, 97
— springs, inadvisability of welding, 92, 93
— susceptibility of when molten, 97
— teeth, building up of, 96
— vertical welding of, 104
— weld, broken, method of repairing, 96
— welding, difficulties of, 81, 92
Steel welding, 81-105
T
Table of different pressures of oxygen at various temperatures, 29
Tanks inflammable gases, caution to be used in welding, 103
Teeth, building up of, 96
Temperature of acetylene gas flame, 1
Tip, size of in welding, 63
V
Ventilation, 56, 108
— importance of in welding shop, 43
Vertical welding, 104
“V-ing” metal in welding, 63
W
Welding, aluminum, 109-117
— brass, 106-108
— cast iron, procedure, 67-70
— malleable iron, 120-124
— methods of distinguishing between metals, 58
— sparks in determining kind of metals in, 58
Welding of steel, 81-105
— — — broken weld, manner of repairing, 96
— — — cast, procedure in, 88
— — — contraction and expansion in, 87
— — — crank shafts, 93, 94
— — — craters, formation of in, 88
— — — filler-rod in, 91
— — — hard spots, formation of in, 89
— — — heat treatment in unequal sized pieces, 97
— — — methods of, 82-86
— — — overhead welding, 105
— — — springs, futility of welding, 93
— — — teeth, building up of, 96
— — — vertical welding, 104
