July 1, 1915.J 



THE INDIA RUBBER WORLD 



545 



THE VAN NOTE INNER TUBE MACHINE. 



A novel machine used in splicing inner tubes has recently been 

 placed on the markei lo n rhropp's Sons Co. which is of 

 interest to tire manufacturers and repair men. Ri 

 illustration, il consists of a base and a pedestal that supports the 

 expanding mandrel and the tube turning bead. The mandril is 

 formed by six segments thai are expanded and 



toggle joint operated by a foot treadle. Leather bands are- 

 fastened to the end of each segment and their opposite end- are 

 attached to the drawing bead wheel. 



The skived tube is placed over the mandrel, which expands 

 automatically, holding the tube firmly in place. The drawing 

 bead is pulled forward by the band wheel and the bands turn the 

 male end of the tube. The reverse turn is made by compressed 

 air and a simple motion of the operator's fingers. 



MOTOR-GENERATOR SETS. 



Bulletin No. 42.552, entitled "Motor-Generator Sets," has just 



een issued by the General Electric Co., and is an attractive 



publication of 28 pages, containing numerous illustrations of 



ating current to direct cun ni el .ice versa, varying 



in capacity from 0.2 kw. to 1,500 k\v., and. third, alternating 

 current to all. i, between two periodicities. 



commonly called "frequencj changers." For this work machines 

 are supplied which are pure motor generators; that is, all the 



' is converted into the mechanical form in the motor and 

 electrical power in the generator. 



equency changers are necessary wherever power of a dif- 

 ferent frequency from that of the supply is 



i i has become practically standard in America for lighting 

 oses and also for a large number of power applications, since 



mits the operation of incandescent lamps of all sizes and of 

 multiple arc lamps, and it also gives a much larger number of 



Is for induction motors. The most common use of fre- 

 quency changers, therefore, is to furnish 60-cycle service from a 

 25-cycle hydro-electric tra n line or steam system. For 



instan largi water power development brings cheap 25-cycle 



I "Mr a lung transmission line to a rubber mill having a 



cle system. The steam plant is shut down and power ob- 

 ■ in the hydro-electric system through frequency changers, 

 the steam plant being maintained as a reserve in case of low 

 water or transmission line trouble. 



NEW TRADE PUBLICATIONS. 



""THE latest issue of "Foot-Prints," a periodical publication is- 

 sued by the Canadian Coi solidated Ruber Co., Limited, of 

 Montreal, for distribution among the retail trade of the Cana- 

 dian provinces, contains numerous suggestions for increasing 

 sales not only of the many footwear styles being manufactured 

 by the company, but also of its rubberized garments. This latest 

 issue has 47 pages, illustrated with reproductions of photographs 

 of company officials and with latest footwear and raincoat styles. 

 The company maintains 28 service branches throughout the 

 Dominion from which dealers may draw their stocks. 



"South American Hand-Book" is the title of a 55-page paper- 

 bound book recently published by the National Foreign Trade 

 Council, 64 Stone -treet. New- York, an organization composed 

 of merchants, manufacturers, railroad and steamship men and 

 bankers representing all sections of the United States, and 

 interested in promoting foreign trade. The "South American 

 Hand-Book" is a very complete compilation of information con- 

 cerning the public indebtedness, foreign commerce and railway 

 development of South American countries. It covers the whole 

 South American field and is of special interest now when agi- 

 tation is so strong in favor of foreign trade expansion. 



A LOOSE LEAF SUGGESTION BINDER. 



A novel form of publicity promotion and one likely to 

 meet with more than usual appreciation by the dealer has 

 been adopted by the Firestone Tire & Rubber Co., of Akron. 

 Ohio, in the form of a window display suggestion binder 

 which has been sent to Firestone pneumatic tire dealers 

 throughout the country. As distributed, the binder con- 

 tained two sheets showing two attractive window displays. 

 At regular intervals throughout the year additional sheets 

 containing other display ideas will be sent to these dealers, 

 to be bound in their suggestion books; so that in time these 

 will become volumes of valuable suggestions for sales 

 promi 



various types of motor-generator sets designed and manu- 

 factured by that company. They are divided into three general 

 classes. First, direct current to direct current sets; -econd. 



•WHITENEN" FOR GOLF BALLS 



Whitenen" is a new preparation for whitening golf balls and 



making them visible at almost any distance. It is put up in 25- 



i nt cans supposed to contain enough material for 35 applica- 



and it can be applied, by the aid of a string and a pin. 



without ever, soiling the hands. [Brauer Bros, St. Louis, 



Missouri.] 



