586 



THE INDIA RUBBER WORLD 



[July 1, 1917. 



New Machines and Appliances. 



THE ALLISCHALKERS STEAM TURBINE AND ALTERNATOR UNIT. 



THL widest applicaiion oi tlic steam tiirliiiie is witliout doubt 

 in turbo-gencrators for electric drive. The use of electric 

 power in rubber mills has increased proportionately with the 

 steady growth of the industry that ranks among the foremost con- 

 sumers of electric energy. In all sizes of units above 200 kilo- 

 watts, the first cost, reliability and ease of operation place the 

 steam turbine in the van of all prime movers. Tlic large sized 

 units that are now necessary in the principal rubber mills of 

 this country arc made possible by the steam turliine that is 



establishing records of economical operation heretofore thought 

 impossible. Rubber manufacturers have been prompt in 

 recognizing the advantages of electrical power and all of the 

 larger plants and many of tlie smaller ones are equipped witli 

 electrical drives. 



-A recent installation in the plant of the Federal Kubbcr Alanu- 

 facturing Co.. Cudahy, Wisconsin, is here shown. It consists 

 of a 3200-kilowatt high pressure condensing steam turbine and 

 alternator unit of the standard Parsons type and will be used 

 for generating alternating current for general use in the rubber 

 mill. The characteristics of the electrical end are CO cycle, 3 

 phase. 2300-volt. 80 per cent power factor. Tlie steam end takes 

 high pressure steam direct from boilers and exhausts into a high 

 vacuum condenser. [The AUis-Chalmers Manufacturing Co.. 

 Milwaukee. \\'isconsin.] 



LINEAL MEASURE PRODUCTIMETEH. 



In the manufacture of rubber goods an accurate record of the 

 product of each machine is essential in computing the cost of 

 manufactured articles. A measuring device that is particularly 



serviceable in 

 recording the 

 number of lin- 

 eal feet pro- 

 duced by tub- 

 ing machines is 

 shown in the 

 illustration. An 

 a d j u s t a b 1 e 

 bracket affords 

 easy attach- 

 m e n t to the 

 front of the 

 machine so that 

 the measuring 

 wheel rests 

 lightly on the 

 stock as it 

 emerges from 



the head. The figures record actual feet, although the measur- 

 ing wheel is 16 inches in circumference, which has been found 

 the most practical size for all kinds of work. A leather-faced 

 brake prevents the wheel from spinning w-hen the end of the 



stock is reached. IJirt-prool oil cups are provided and the work- 

 ing parts enclosed in a dust-proof case that may be locked to pre- 

 vent it being tampered with. The coinitcr weighs 15 pounds and 

 is made in three sizes, the smallest counting up to 999, the 

 medium size counting up to 9,999, and the largest will count 

 999,999. [Durant Manufacturing Co., Milwaukee. Wisconsin.] 



STOCK CUTTING MACHINES. 

 Machines for cultin.a tubin.n machine stock arc used in every 

 mill where molded rubber goods arc made and are therefore not 

 liartirularly novel, IIhwcmt, the machine here shown, while 



suitable for a 

 variety of 

 work, is-, spe- 

 cially designed 

 for cutting rub- 

 ber heel stock. 

 The machine is 

 bolted to a hol- 

 low pedestal of 

 substantial de- 

 sign that sup- 

 liorts the brack- 

 et in which is 

 journaled the 

 cutter shaft 

 driven by a 

 two-step cone 

 pulley. This 

 shaft is provid- 

 ed with a fly 

 wheel on the 

 uuter end, and 

 the cutting 



knife is mounted on the inner end in shearing clearance with the 

 stock head. This head is adapted to hold the different bushings 

 necessary in cutting stocks of various shapes and diameters and 

 an adjustable stop is provided that regulates the length of stock 

 to be cut. 



This machine precludes the usual method .of slabbing and die- 

 ing-out heel stock and, moreover, it may be used to Cut stock 

 for smaller articles, such as basin-plugs, fuller-balls, bumpers and 

 many other forms of molded rubber goods. [Holmes Brothers, 

 500 South Peoria street, Chicago, Illinois.] 



THE AUTOCALL SIGNAL SYSTEM. 



Electrically operated signals for locating and calling to the tele- 

 phone or the ofiice, heads of departments who are employed 

 somewhere in the factory have been in use for some time in 

 the larger rubber mills. The advantages of the system are obvious 

 and in the larger manufacturing establishments it is considered 

 indispensable, .-^s a natural result the system has been improved 

 and its scope enlarged so that the .Autocall system is now a rec- 

 ognized aid in modern rubber mills. 



The Autocall central is a small, compact device that is placed 

 within reach of the telephone operator. Where space is limited 

 the central may be located in any convenient place and connected 

 by cable with a plug board placed so that it is accessible to one or 

 more operators. 



The Autocall central and the remote call are both operated 

 by a plug board similar to a telephone switchboard, with which 

 all operators are familiar. To locate anyone, the operator inserts 

 the plug in the hole corresponding to that person's signal, and 

 by giving the motor a quarter tu^n the call is sounded at all 



