674 



THE INDIA RUBBER WORLD 



[September 1, 1914. 



and E. W. W'cscott and assigned to the Walpole Shoe Supply Co., 

 of Boston, Massachusetts. This invention relates to an apparatus 

 for heating strips of cement-coated fabrics used in the manu- 

 facture of "Gem" insoles. The machine eliminates overheating 

 of the coated fabric and makes it easier for the operator to move 

 the strip out of contact with the heating plate than to leave it 

 on the plate too long and then dispose of the spoiled length. 



British Patent No. 6.810 (1913). Granted to the Dunlop Rub- 

 ber Co. Birmingham, England. This is a machine for automatic- 

 all)- applying the anti-skid studs to tire treads. The tire is 

 mounted on an annular mandrel having holes in the position for 

 the rivets. The mandrel is rotated by a ratchet to bring the holes 

 successively into register with a riveting device for applying the 

 studs and washers. 



French Patent No. 454,444 (1913). Granted to -M. R. P. C. 

 Buzat. In the specifications of this patent a spreading machine 

 is described by which unvulcanized sheets for use in surgical and 

 other rubber goods are treated in such a manner as to preserve 

 the nerve of the rubber. The solution is spread in thin layers on 

 a smooth endless band running over two drums. .'Vt each turn of 

 the band it receives a thin coating of rubber, which dries during 

 its passage over a heated table. The operation is continued until 

 the layers of rubber are built up to the required thickness, when 

 talc is applied and the sheet is detached. The spreading table is 

 covered with a sheet-iron hood having a suction outlet, through 

 which the solvent vapors are drawn off and recovered. 



MAGNETIC CLUTCH AND BRAKE WITH FLEXIBLE 

 COUPLING. 



AUTOMATIC WEIGHING OF COMPOUNDING IN- 

 GREDIENTS. 



■ I 'HE possiljle use of the machine shown in tlie illustration is 



•^ the reason for its appearance here. In a word, it is a swift. 



accurate and secretive weighing mechanism which works faster 



THii'i.t: G.\.\G M.\i:hine. 



than any e.xpcrt human weigher. It is used in a variety of in- 

 dustries where dry ingredients arc weighed and assembled. The 

 suggestion is that a gang of these machines could handle the in- 

 gredients that go to make up a compound, one for whiting, 

 another for litharge, still another for sulphur and so on. The 

 machine takes the material from a bin, weighs it and dumps it 

 in a pan. The pans would pass in front of the machines and 

 receive the various ingredients in rotation. Of course it would 

 only be practical where single products like tires or shoes are 

 made on a large scale. 



'T'HE Cutler-Hammer Clutch Co. has in course of construction 

 '■ a combination magnetic clutch, brake and flexible coupling 

 which, when tinished, is to be installed in the plant of the Midge- 

 ley Tire & Rubber Co., of Lancaster, Ohio. The coupling is to be 

 placed between the 

 line shaft, which 

 operates the plant, 

 and the main mill 

 shaft, tcj provide a 

 means for shutting 

 down the entire 

 equipment in case 

 of emergency. The 

 accompany ing 

 drawing shows a 

 cross section of 

 the device, through 

 the center of the 

 clutch and brake. 

 The clutch and 

 brake to be used 

 are of the same 

 type as that illus- 

 t r a t e d and de- 

 scribed in the June 

 issue of The In- 

 [II .\ Rubber World. 

 The equipment 

 differs, however, 

 from anything 

 previously supplied 

 to rubber mills, in 

 that the armature 

 member, A, of the 

 clutch is carried 

 by a roller bear- 

 ing, B, on an ex- 

 tension, C, of the 



power shaft, and connection is made between the armature and 

 the brake wheel, D, which is carried by the mill line shaft, E, 

 through a flexible coupling made integral with the brake wheel. 

 This flexible coupling, which forms the feature of the equip- 

 ment, consists of cylindrical extension, f, on the flange carry- 

 ing the brake wheel. These extensions are slotted and encir- 

 cled by a rawhide band. G. A flange, H, carried by the ar- 

 mature member of the clutch, projects into the annular slots 

 encircled by rawhide bands and serves to transmit the torque. 

 This coupling is sufiiciently flexible to permit the driving and 

 driven shafts to be out of level as well as out of alignment. 

 The clutch is to have a normal rating of 450 horsepower at a 

 speed of 90 revolutions per minute. 



H 



CrTLER-H.\M.MER M.\GNETIC ClUTCH 



WITH Flexible Coupling. 



An order for 2,000.000 bales of cotton has been received from 

 Japan by southern planters, to take care of the Chinese demand 

 for finished cotton goods heretofore largely supplied by Ger- 

 many. 



Contracts have been let for the erection at Toronto, Ontario, 

 of a chewing gum factory for the William Wrigley, Jr., Co., 

 Ltd. — the largest factory of its kind in the British Empire. 



The Russian Government, according to the press of that 

 country, proposes to order 336 aeroplanes for the use of the 

 War Department, all of which are to be completed by the autumn 

 of the present year. Orders have already been placed for three 

 large dirigibles, two of wdiich are to be constructed in France 

 and one in Russia. 



Replete with information for rubber manufacturers — Mr. 

 Pearson's "Crude Rubber and Compounding Ingredients." 



