INDEX

Advantages of system, 5

Aerograph, 101

Air compressors, 67, 70, 71

—— filters, 10, 21-27

—— induction, 63

—— lift, advantages, 97

—— ——, air required, 97

—— —— “depression,” 96

—— —— pumping, 95-100

—— —— submergence, 96, 100

—— receivers, 69

—— reheating, 68, 69

—— velocity, 36

“Aquadag,” 20

Ash handling, 58, 74-77

Bag filters, 22-24

Bends and elbows, 34, 35, 67

Bibliography, 105

“Blowing” system, 4

Breaking of materials, 34, 35, 67

Buffer boxes, 78

Capacity of pipe lines, 36

Cement handling plants, 101

Cleaning with air blast, 94

Coal-handling plants, 54-58, 60, 61

Comparative costs, 53

Conveying above atmospheric pressure, 6

—— below atmospheric pressure, 6

—— above and below atmospheric pressure, 6, 64-66

Cyclone separators, 21

Design, factors influencing, 8

Despatch tubes, 80, 81

Dischargers design, 10, 28-32, 56, 57

—— difficulties, 9

—— valves, 28, 31, 32, 56, 58

Exhausters, 10, 14

Factors influencing design, 8

Flexibility, 5

Flexible suction pipes, 36

Floating plants, 3, 46, 51, 59-61

Flue cleaning, 59

Foot power pumps, 86

Fundamental principles, 3

Grain-handling, 45, 47

Heavy commercial systems, 7

High pressure systems, 6, 39

Historical, 1, 2

“Induction” system, 4, 6, 62-66

“Intermittent” tube system, 81, 83

Junctions in pipe lines, 33

King’s exhauster, 10-14

—— three-way valve, 37

“Kinking” to be avoided, 92

Large pipe systems, 7

Lime washing, 101

Low pressure systems, 6

Lubrication, 20

Materials, breaking of, 34, 35, 67

Mollers’ air filter, 24

Nash hydro-turbine, 18, 19

Nozzles (suction), 10, 40-43

Oil contamination, 11

Pipe lines, 10, 33, 36, 39

—— ——, capacity of, 36

Pneumatic tube carriers, 81, 82

—— ——, “continuous,” 81, 83

—— —— foot power, 86

—— ——, “intermittent,” 81, 83

—— ——, power required, 84, 85

—— —— pressure system, 81, 85

—— —— vacuum system, 84

Portable quay-side plant, 5

—— railway plant, 49-51

—— vacuum cleaners, 92

Power required, 44

Pressure systems, 4, 6

Pumping by compressed air, 94, 95

Quayside plants, 51

Reheating compressed air, 68, 69

Rotary blowers, 14, 15

Sand-blasting, 102

Stationary plants, vacuum, 92

Steam consumption, 72-74

—— jet conveyors, 72, 74, 76

—— jets, 77

—— jets, economy of, 72, 73

Sturtevant blowers, 16, 17

“Suction” nozzles, 10, 40-43

—— systems, 4-7

Systems, advantages of, 5

Telescopic pipes, 38

Turbo-blowers, 11

Vacuum cleaners, 89

—— ——, tests, 92

—— required, 3

Valves in pipe line, 37

Velocity of air in pipes, 36

Water pumping, 95-100

Waterside plants, 45, 47, 48, 59

Wear of pipes and bends, 34, 35

Wet air filters, 25-27

Printed by Sir Isaac Pitman & Sons, Ltd., Bath, England