May 1. 1919.- 



THE INDIA RUBBER WORLD 



427 



New Machines and Appliances. 



A NEW CRUDE-RUBBER WASHER. 



FROM the Far East comes a mechanical development in 

 washing-machine construction that owes its origin to the 

 needs of rubber planters for an efficient rubber-scrap 

 washer. For several years this machine has given satisfactory 

 results in washing the various grades of plantation scrap and now 



The U. E. Rubber Washer. 



it is bwuig used in rubber factories in England fur washing 

 Paras, Africans, Centrals, Manigobas, and in fact all kinds of 

 material containing crude rubber. 



The mechanical principle involved is that of pressing the rub- 

 ber across a closely perforated steel grating during the milling 

 operation, the design of the grating permitting the ejection of 

 impurities while the rubber is retained. The arrangement of the 

 disks, division plates, and steel cutters that cut and disintegrate 

 the rubber is shown in the illustration. The rotar shaft, disks, 

 and coUors, A, B, and C, respectively, are made in one solid cast- 

 ing, the removable steel cutters D being attached to the 'back- 

 plate. Other principal parts comprise the division plates E, that 

 are cast solid with the back-plate, a three-sectioned grating F, 

 hopper G, water seal bearings H, outer bearings /, gear wheel 

 and pinion .' and K, friction clutch L, driving shaft M, and water 

 spray fitting .V. (.United Engineers, Limited, Singapore, Straits 

 Settlements.) 



THE ALLEN TWELVE-INCH TUBING MACHINE. 



Insistent demands from rubber manufacturers for larger pro- 

 duction and greater efficiency in forcing machines have resulted 

 in marked development in the American tubing machine. The 

 accompanying illustration shows an example of the large size 

 and improved construction that are necessary to meet the re- 

 quirements of modern rubber mills. 



It is a 12-inch machine, driven by a three-bearing motor with 

 a raw-hide pinion and wide-gear faces, insuring quiet operation. 



and the top of the feed box, 13j4 inches higher. The importance 

 of this point can be realized when it is known that a 10-inch 

 machine running on double tread solid tires has a capacity of 

 165,000 pounds per day.- The rubber when entering this machine 

 has a temperature of about 80 degrees C. and tests have shown 

 an increase of only 5 degrees C. in the finished product. This 

 efficiency is due to the improved method of regulating the tem- 

 perature of the cylinder and worm. 



The machine is also built for use as a strainer, having a double 

 strainer I3yi inches in diameter by 17 inches long. 



The 12-inch machine weighs 27,000 pounds and occupies a 

 floor space of 6 feet 3 inches by 12 feet 8 inches. Motor of 

 from 75 horse-power to 100 horse-power is required, depending 

 on the speed of the machine and the class of work to be produced. 

 (Allen Macliine Co., Erie, Pennsylvania.) 



A ROTARY HAND-PUMP. 

 The manufacturer who has liquids in bulk will appreciate 

 the convenience of this rotary pump for emptying barrels or 

 transferring from one container to another. 

 Discharge may be taken at the pump 

 for filling oil cans or vessels or may be 

 carried through hose to vats or tanks. 

 When the pump is intended for use with 

 steel drums having threaded bungs, a special 

 bung-holder is furnished to order, this 

 lolder being conical and with a taper thread 

 suitable for any usual bung tapping. 



Each outfit is furnished complete with 

 suction pipe, adjustable bung-holder, hose 

 couplin- anil lank hook as illustrated. Hose 



The Rumsey Plmc, 



is not regularly included 

 but can be supplied to or- 

 der in any length desired. 

 (Rumsey Pump Co., Ltd., 

 Seneca Falls, New York. ) 



PERFECTED NEW MODEL 

 STEAM VULCANIZER. 



Retreading casings an-' 

 pro\iding for plain, rib- 

 bed and non-skid treads, 

 by the use of specially de- 

 signed molds, is the prov- 

 ince of the vulcanizer here 

 pictured. 



This machine is 

 equipped with an alum- 

 inum non-skid or ribbed- 

 tread matrix and a radiat- 

 ing insulated flange to 

 protect the tire from over- 

 curing at the laps. It has 



A Non-Skid Retreading Vulcanizer. 



Vertical gearing has been eliminated and the shafts are carried 

 in ring-oiled bearings. The low type of design facilitates feed- 

 ing, the center of the machine being 33j<t inches above the floor 



If-contained boiler and is also 

 equipped w'ith steam safety valve and gage. There are three 

 models, H, K, and L. W'ith its use, it is claimed, the tire man 

 is able to rebuild an old casing into an apparently new tire, 

 adding from 2,000 to 5,000 additional miles at a very nominal 

 cost. (Wilkinson Vulcanizer Manufacturing Co., San Bernar- 

 dino, California.) 



