MICROFICHE REFERENCE LIBFUUW - Cd3wd.com
MICROFICHE REFERENCE LIBFUUW - Cd3wd.com MICROFICHE REFERENCE LIBFUUW - Cd3wd.com
A- ARCHIMEDES’h- LOGARlTHMlCHEAD (cm1r = 2.5 e”-432 eFATHI LOGARITHMIC ARCHiMEDES HRES D, HRES D,Figure 3.24 Comparison of various tympanum designs (HRES, 1965)
84Table 3.6Tympanum performanceDiametermlLiftet1DischargeNW Remarks Reference16.4 s.9 1274 1 animal Molenaar, 195613.1 4.3 1805 1 animal Molenaar, 19569.8 3.0 2655 1 animal Molenaar, 19566.6 1.0 4036 1 animal Molenaar, 19569.8 4.9 708 1 animal;tablia13.2 8.2 425 1 animal;tabliaMolenaar, 1956Molenaar, 19563.3.2 ScrewThe basic screw or auger is merely an incline surface rotating arounda central axis and when used as a water lift, it in effect pushes thewater up the incline-- see Weisback and Herrmann, 1897.One of the earliest designs for a water-lifting screw utilized aflexible tube wrapped around and secured to an inclined axle, as in Figure3.25a. This design if often referred to as a water snail, Egyptian screw,or cochleon, however it is rarely used today. Instead, the commonlyreferred to Archimedean screw, which has been in use for centuries (seeSection 1.2), is the more popular screw-device presently in use. Severalother names are applied to this water lifter:screw pumpwater-screwRoman-screwscrew milltambourAs illustrated in Figure 3,25b, this device can be easily constructedprimarily of wood with a few basic tools. This type construction is
- Page 40: animal is returning to the top, the
- Page 43 and 44: 363.2.1-S Counterpoise LiftThe coun
- Page 45 and 46: 38to return the lever. Combinations
- Page 47 and 48: 40Table 3.1Shadouf performanceLift
- Page 49 and 50: (b)Figure 3.5 Scoop (a) used as sho
- Page 51 and 52: ‘PIVOT-r- ----hFigure 3.6 Wzcer b
- Page 53 and 54: 46water. The capacity of this devic
- Page 55 and 56: - =7?=PIVOTCOUNTER WEIGHT\FLAP- VAL
- Page 57 and 58: 50(a)ROLLER 7- HAND RAIL/SIDE - BY-
- Page 59 and 60: 52flow in through a check-valve (e.
- Page 61 and 62: 54exhaust valves for the steam (or
- Page 63 and 64: 56Another significant difference be
- Page 65 and 66: 58shaft), two other forms of these
- Page 67 and 68: 60Among the simplest designs for a
- Page 69 and 70: 62/HANDLEBARDISCHARGEHOSEfFOOTRE$TD
- Page 71 and 72: HANDLE/CONNECTINGARMDISCHARGEFLAP V
- Page 73 and 74: 663.3.1 WheelAfter many of the earl
- Page 75 and 76: 68Table 3.2 Manually-operated paddl
- Page 77 and 78: 70engine (2-3 hp) as the prime move
- Page 79 and 80: 72Table 3.3 records some of the per
- Page 81 and 82: 74Several names which are also appl
- Page 83 and 84: 76Table 3.5Zawafa performanceLiftDi
- Page 85 and 86: 78noria and the discharge and head
- Page 87 and 88: 80enclosed circumference can also b
- Page 89: 82Most early tympanums were of the
- Page 93 and 94: 86sufficiently compact and lightwei
- Page 95 and 96: 88of 3000 gpm or 5000 psig. Dependi
- Page 97 and 98: SE;vlI - ROTARYBUCKET VANEU’C)Fig
- Page 99 and 100: 92(a)AIRCHAMBERAIR FEEDERVALVEWASTE
- Page 101 and 102: 94Table 3.8Ram performanceA. Typica
- Page 103 and 104: COMPRESSEDAIRDEAofpctI5LT1EDUCTC II
- Page 105 and 106: 98FLASHTANK .iJI 10 -NON-RETURNVALV
- Page 107 and 108: Because the components are not yet
- Page 109 and 110: 102air-lift pumps. The oscillation
- Page 111 and 112: 104and from the impeller and confin
- Page 113 and 114: 106making this type pump useful for
- Page 115 and 116: 90s; 80iTi!g 700E 60W50SPECIFIC SPE
- Page 117 and 118: 110to lubricate all or some of thei
- Page 119 and 120: 112such variables as impeller size,
- Page 121 and 122: 114GEAR HEADOR IVE SHAFTTO PRIME MO
- Page 123 and 124: 116W(clFigure 4.6 (a) Thai-style ou
- Page 125 and 126: 118DRIVINGSUCTIONDIFFUSERa- - =tQ,E
- Page 127 and 128: DISCHARGELINE OISCHARGE RETURNLINEL
- Page 129 and 130: -122which at $.20/kg, cost $6.00. H
- Page 131 and 132: Table 5.1Manual power appl icat i a
- Page 133 and 134: 126water lifting device. Animals ar
- Page 135 and 136: 1285.4.1 WindWindmills are currentl
- Page 137 and 138: 130even saw use on the windy plains
- Page 139 and 140: 172HAL F CYLINDERSt------TO WATER L
84Table 3.6Tympanum performanceDiametermlLiftet1DischargeNW Remarks Reference16.4 s.9 1274 1 animal Molenaar, 195613.1 4.3 1805 1 animal Molenaar, 19569.8 3.0 2655 1 animal Molenaar, 19566.6 1.0 4036 1 animal Molenaar, 19569.8 4.9 708 1 animal;tablia13.2 8.2 425 1 animal;tabliaMolenaar, 1956Molenaar, 19563.3.2 ScrewThe basic screw or auger is merely an incline surface rotating arounda central axis and when used as a water lift, it in effect pushes thewater up the incline-- see Weisback and Herrmann, 1897.One of the earliest designs for a water-lifting screw utilized aflexible tube wrapped around and secured to an inclined axle, as in Figure3.25a. This design if often referred to as a water snail, Egyptian screw,or cochleon, however it is rarely used today. Instead, the <strong>com</strong>monlyreferred to Archimedean screw, which has been in use for centuries (seeSection 1.2), is the more popular screw-device presently in use. Severalother names are applied to this water lifter:screw pumpwater-screwRoman-screwscrew milltambourAs illustrated in Figure 3,25b, this device can be easily constructedprimarily of wood with a few basic tools. This type construction is
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