J-92 



THE RUBBER TREE BOOK 



One of the latest types of machine is the " Angle " roller 

 creping machine, belt-driven, a type popular in Ceylon. One of 

 the objects in making the machine on the angle is to bring 

 the front roller nearer the ground and allow of larger rollers 

 being used. We would here mention that there is a tendency 

 to increase the diameters of rollers on these machines, In the 

 early days 9" x 18" was the standard in the Federated Malay 

 States; then came the 12" * 15", and recently orders have been 

 placed for machines with rollers 14" x 24". The larger machines 

 naturally take more power to drive, but they do more work and 



FIG. 51. Bridge's Patent "Angle 5 ' Roller Mill. 



thejrollers last much longer. It may strike the reader that the 

 idea of increasing the diameter of the roll is to increase the 

 peripheral speed, but this is not so ; there is a limit to the peri- 

 pheral speed of rollers in washing, sheeting and creping. The 

 end wheels are of the usual friction speed which varies with the 

 method of treating the rubber. These belt-driven machines 

 are principally used in Ceylon, and here we may remark that 

 there they are not quite up to the Federated Malay States level 

 in engineering ideas. 



The machine type J.A. is a standard type of machine for 

 the Federated Malay States driven by machine-cut gearing and 

 friction-clutch driven direct from the main-line shafting at the 

 back of the machine. This machine is self-contained, all the 



