The Preparation of Plantation RubberMorgan, Sidney
Science
The Preparation of Plantation Rubber
Morgan, Sidney
Rubber
SINGLE CUT ON HALF CIRCUMFERENCE (HALF-SPIRAL) 35
A [V]-CUT ON HALF THE CIRCUMFERENCE 37
SINGLE CUT ON TWO-FIFTHS OF CIRCUMFERENCE 41
EFFECTS UPON RENEWED BARK OF PREVIOUS TAPPING 44
ANOTHER EXAMPLE SHOWING THE EFFECTS OF PREVIOUS TAPPING 45
1. SHOWING EFFECT OF "WINTERING" 48
2. NEW GROWTH OF YOUNG LEAF ON SAME TREE 49
EFFECTS OF DISEASE--"MOULDY ROT" 50
EFFECTS OF DISEASE--"MOULDY ROT" 51
EFFECTS OF DISEASE--"MOULDY ROT" 52
EFFECTS OF DISEASE--"MOULDY ROT" 53
RAISED VERANDAH FOR RECEPTION OF LATEX; LIKEWISE EQUIPPED WITH
FACILITIES FOR CALCULATING INDIVIDUAL DAILY "YIELD PER
COOLIE" BY SAMPLING OF LATEX 66
END-SECTION SKETCH OF VERANDAH, ETC., SHOWING A GOOD METHOD
FOR RECEIVING LATEX AND FILLING TANK 70
RAISED VERANDAH FOR RECEPTION AND HANDLING OF LATEX 71
ANOTHER SET OF DILUTION TANKS ON RAISED VERANDAH 72
TWO VIEWS OF DILUTION AND MIXING TANKS 81
UNIT MODERN COAGULATING TANK (TWO VIEWS) 91
ANOTHER BATTERY OF TANKS, WITH DILUTION TANKS, RAISED, ON THE
RIGHT 92
CLOSER VIEW OF FOREGOING 93
ANOTHER BATTERY OF TANKS, WITHOUT DILUTION TANKS OR MEANS OF
GRAVITATING LATEX 95
A SHEETING TANK CONTAINING COAGULUM FOR CREPE PREPARATION 96
A "BATTERY" OF SHEETING TANKS (PATALING ESTATE). DILUTION
TANKS, RAISED, ON THE LEFT 97
THE OLD METHOD OF "DRIPPING" FRESHLY ROLLED SHEETS WITHIN THE
FACTORY 108
THE NEWER METHOD OF HANGING IN THE OPEN AIR 109
THREE GRADES OF CREPE RUBBER 111
A WASHING SHED 112
DRYING GRAPH. PALE CREPE (THIN) 140
A SHIPMENT OF RUBBER, PACKED AND READY FOR TRANSPORT 155
ON ITS ROAD TO THE RAILWAY: BULLOCK-CART TRANSPORT 157
A BATTERY OF MACHINES 165
"THIRD MILE" TYPE; HORIZONTAL DRUM 190
"THIRD MILE" TYPE OF FURNACE, USED IN CONJUNCTION WITH "THIRD
MILE" SMOKE-HOUSE 190
SIDE SECTIONAL ELEVATION (PATALING TYPE OF FURNACE) 193
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