THE INDIA RUBBER WORLD 



[September 1, 1916. 



less so convenient a machine could be made useful in many rubber 

 plants that do not reclaim rubber scrap. In fact it is now used 

 in a large tire factory for cutting scrap tires to facilitate packing, 

 prior to shipping to the reclaimer. 



In the No. 1 machine the 

 axles at both front and rear 

 are so arranged that the 

 tongue may be attached to 

 either axle. Thus the ma- 

 chine is drawn to 

 the scrap pile and 

 when the cutting 

 is over the tongue 

 is attached to the 

 rear axle and the shear drawn away. A special cranio .-.hafl and 

 pitman permit a 7>4 inch opening at the widest point of the jaws. 



This machine is made in both stationary and motor-driven 

 types and requires only one man to operate it, making 50 cuts 

 per minute with the expenditure of three horse-power. Thus 

 it will be seen that considerable scrap can be cut in a day at 

 very small cost. [The Canton Foundry & Machine Co., Canton, 

 Ohio] 



NEW DRY COMPOUNDING MACHINE. 



A new type of masticator for dry compounding has been 

 recently designed as the result of experiments tending to prove 

 the theoretical superiority of a masticating blade over the ordi- 

 nary compounding roll. Sufficient power, the chief requisite, 

 especially for the higher grade compounds, has been considered 

 in the construction, resulting in a much larger and stronger built 

 machine. Another factor that makes for an enclosed machine 

 is the increasing use of various forms of lamp black and other 

 light substances for compounding, which have a strong tendency 

 to fly about and cause considerable dirt and annoyance. 



thoroughly and uniformly incorporated into the compound, 

 eliminating the personal equation in manipulation, a most im- 

 portant cause for lack of uniformity in the compound. 



Better Temperature Control. The outer shell or trough is 

 jacketed, and the blades made hollow, if desired, so that the 

 effect of steam, cold water or even brine can be applied to a 

 \ ery large surface of the material. 



Flying Dust Controlled. The inconvenience of flying dust, 

 so troublesome in the lighter compounds, can be controlled to a 

 large extent, as the active blades are inclosed in a chamber or 

 trough. 



The size of the machine is considerably larger than the ordi- 

 nary type, but it is claimed that it takes up considerably less 

 space than mills of corresponding capacity. 



The working capacity of this machine is figured at approxi- 

 mately 10 cubic feet per charge against 5^ cubic feet, the charge 

 of the regular masticator. 



The power required will, of course, vary with the compound. 

 The machine is designed to carry 125 horse-power without over- 

 loading, although it is estimated that the average demand will be 

 from 65 to 80 horse-power. 



The time of masticating must naturally be determined by ex- 

 periment for each compound, but in experiments held up to the 

 present time it has varied from half an hour to an hour. 



A small machine having a capacity of about one cubic foot, 

 on which this company has been conducting experiments at their 

 Saginaw factory, will be exhibited at the Second International 

 Exposition of Chemical Industries to be held at the Grand Cen- 

 tral Palace the week of September 25. [Werner & Pfleiderer Co., 

 Saginaw, Michigan.] 



THE FREEMAN IMPROVED BLOCK PLANER. 



All manufacturers of rubber goods, using power cutting 



machines and 

 find a planer 



The following advantages are claimed by the manufacturers: 



.\uT0MATic. The proper time for breaking down various gums 

 can be determined by experiment and also the proper sequence 

 for adding the ingredients and the time required to incorporate 

 them completely into the compound. 



Labor Saving. Owing to the fact that personal attention is 

 not necessary to each machine between the various loadings, it is 

 estimated that one man of ordinary intelligence can handle four 

 machines. 



More Uniform Compound. As the compounding of the mate- 

 rial is automatic in the machine, which not only has a compress- 

 ing action but a kneading and mixing action, the ingredients are 



wood cutting boards or die blocks, will 

 )r resurfacer a valuable and needed addition 

 to their factory equipment. 



The operation of the machine 

 is simple. The board or block 

 to be planed is clamped on a 

 platen and fed automatically. 

 The cutter head is covered 

 with a guard, making it per- 

 fectly safe, and also acts 

 as a part of dust 

 collector and can be 

 connected with the 

 dust collecting sys- 

 :em if that is avail- 

 able; if not, almost 

 all the chips are 

 collected and drop- 

 ped at the side of 

 the machine into a 

 receptacle placed 

 there for that pur- 

 P'lsc. By using this 

 machine, blocks can 

 be kept in good con- 

 dition, effecting a 

 saving in blocks and practically eliminating sprung or broken dies. 

 The machine is self contained, having its own counter shaft 

 with friction pulley. It has a locking lever to start and stop, 

 automatic feed in either direction and a knife grinding attach- 

 ment. 



It is built in the following sizes for the rubber trade : No. 

 will plane boards or blocks 4 feet long, 24 inches wide and 24 

 inches high, while Nos. 1 and 2 will plane boards or blocks 6 



