50 



THE INDIA RUBBER WORLD 



[October i, 1920. 



standards and methods ot remuneration, such as piece-work rates, 

 bonus plans, etc., (5) employment department, (6) health and 

 safety department in charge of safety campaigns and training 

 operatives in use of safety methods.— A. A. Frank, factory man- 

 ager. Federal Rubber Co., Cudahy, Wisconsin. 



Other papers presented were : Address by J. Newton Gunn, 

 vice-president. United States Rubber Co., New York City, cover- 

 ing the importance and general features of safety in modern rub- 

 ber manufacturing practice ; "Health Hazards in the Rubber In- 

 dustry," by C. F. Horan, Hood Rubber Co., Watertown, Massa- 

 chusetts; "Safe Methods of Handling Material," by P. B. Mar- 

 tens, manager. Safety Department, Firestone Tire & Rubber Co., 

 Akron, Ohio. 



OFFICERS AND COMMITTEES OF THE S. A. E. TIRE AND RIM 

 DIVISION 



The personnel of the Tire and Rim Division of the Society of 

 Automotive Engineers for the current year, of which S. P. 

 Thacher is chairman, is given herewith : 



Pneumatic Tires for P.\ssenger Cars Subdivision : S. P. 

 Thacher, chairman; W. H. Allen, C. I. Bradley, E. G. Hulse, 

 J. C. Tuttle, W. S. Wolfe. 



Pneumatic Tires for Commercial Vehicles Subdivision : 

 W. S. Wolfe, chairman; W. H. Allen, C. I. Bradley. L. R. Davis, 

 E. G. Hulse, J. C. Tuttle. 



Pneumatic Tires for Airplanes Subdivision: W. H. .Mien, 

 chairman; C. I. Bradley, A. H. Petersen, S. M. Schott, J. C. 

 Tuttle, W. S. Wolfe. 



Solid Tires Subdivision: A. Hargraves, chairman; W. H. 

 Allen, C. I. Bradley, L. R. Davis, Hugo Hoflfstaedter, A. H. 

 Petersen. 



Pneumatic Tire Rims Subdivision: C. C. Carlton, chairman; 

 W. H. Allen, E. K. Baker, W. N. Booth, Lewis Fine, J. E. 

 Hale, J. W. Holt, S. :M. Schott, J. G. Swain, J. H. Wagenhorst. 



Solid Tire Bands and Rims Subdivision : W. N. Booth, chair- 

 man ; W. H. Allen, E. K. Baker, C. C. Carlton, L. R. Davis, Lewis 

 Fine, J. E. Hale, A. Hargraves, j'. W. Holt. 



STORAGE BATTEJIIES FOR INDUSTRIAL TRACTORS AND TRUCKS 



Electric motor vehicles as applied to army use are a compara- 

 tively new development of transportation. During the war elec- 

 trically driven motor trucks were used in this country by the 

 Government for special purposes. That they survived the severe 

 tests to which they were subjected was due in great measure to 

 the rigid specifications under which all their parts were built. 



The Government specifications for storage batteries for trucks 

 and industrial tractors call for dependable storage batteries, of 

 the lead-acid type, with normal capacity or service rating of each 

 battery not less than 220 ampere-hours at the five-hour discharge 

 rate. For tractors each battery must consist of 24 lead-acid cells; 

 for trucks, one-half that number. The battery jars are made of 

 hard rubber, nominal thickness 3/16-inch (minimum, 0.175 inch), 

 of compound having a nominal tensile strength of 5,000 pounds 

 per square inch, with an elongation of 6 per cent. The minimum 

 tensile strength permitted is 4,000 pounds per square inch, with 

 an elongation of 7'A per cent. Minimum elongation 5 per cent 

 with a tensile strength of not less than 6,000 pounds per square 

 inch. (For intermediate values of tensile strength, the product 

 of the figures of tensile strength and per cent elongation shall be 

 not less than 30,000.) Covers of jars are of the same hard rub- 

 ber compound, with molded flat top, not recessed and not below 

 the top of the jar, and are provided with combination filling aper- 

 ture and gas vent. A minimum amount of scaling wa.x is u.sed 

 to make the cover gas tight. It is necessary that this wax shall 

 not be ignited easily and shall not flow when heated to 120 de- 

 grees F. 



Leads from end cells to tray terminals are of No. 0, B. & S. 

 gage, extra flexible rubber-covered cable. The connections be- 

 tween individual cells are burned onto terminals and must be 



capable of carrying continuously 125 amperes without injury. 

 Bolted intercell connections may be furnished at the option of the 

 purchaser. Tray terminals or connectors when used are of the- 

 wing nut type. 



The electrolyte is sulphuric acid of 1.275 to L290 specific gravity 

 at 80 degrees F. when fully charged. The cells are assembled in 

 trays, each of four cells arranged end to end, with a single tie 

 partition across the center. The trays are of hard wood, painted 

 with two coats of protective paint, fitted with one chest handle 

 on each end and with four lifting irons. 



Eagh battery must be capable of giving not less than either 

 250 cycles of charge and discharge, or one year of life to not less- 

 than 80 per cent of its rated ampere-hour capacity, when operated 

 under service conditions and maintained in accordance with in- 

 structions from the manufacturer. 



A PLAN TO INCREASE FREIGHT FACILITIES 



.An urgent appeal to manufacturers and business men to join 

 in making better use of existing railroad equipment as a means- 

 of providing an immediate improved transportation service has 

 been issued by the Railroad Committee of the Chamber of Com- 

 merce of the United States. The committee points out that 

 shippers can add 535,000 freight cars to the available car supply 

 by loading cars more heavily and loading and unloading thenr 

 promptly. 



As a rule the railroads allow 48 hours free time to load cars 

 and 48 hours to unload them before making any charge for 

 demurrage. If receivers of freight will use only one-half of 

 this time, thus releasing cars in one day instead of two, and in 

 addition will order according to loading capacity, restrict car 

 orders to today's program, avoid the duplication of car orders, 

 and avoid the use of cars for storage purposes, the time that 

 the average freight car spends in the hands of shippers and 

 receivers should be reduced from the present 37 per cent to 22 

 per cent of its total time, and thus add 360,000 cars to the 

 available car supply. 



In 1919 the average load per car was 27.8 tons — only 67 per 

 cent of capacity. If shippers will cooperate with the railroads- 

 to attain an average of 30 tons per car, nearly 175,000 cars will 

 be added to the available car supply. 



JOSEPH STOKES RUBBER CO. BUILDS IN CANADA 



The Joseph Stokes Rubber Co., Trenton, New Jersey, has pur- 

 chased a site at Welland, Ontario, Canada, having a frontage of 

 651 feet on the Grand Trunk Railway, upon which a new factory- 

 will be located. The contract for the building has been awarded,, 

 and the 'first building is now under roof. The first unit of the- 

 new factory will be 120 by 160 feet with a separate power house 

 and office. A spur track will be laid the entire length of the prop- 

 erty to serve additional buildings wliich will be erected as required. 

 The power plant will be 50 by 50 feet, one story brick and timber,, 

 and will contain 4 150-horsepower boilers, water heater, two 

 pumps, air compressor and iron tank. There will also he a 

 transformer room and three-story tower, 20 by 22 feet. The- 

 products of the company will be hard rubber goods, cells and 

 plates for batteries. It is expected that manufacturing operations- 

 will be started by December 1, of this year, at which time 75 

 people will be placed at work. This number will be increased 

 to 150 by February, 1921. The first unit of the factory will cost 

 SIOO.OOO and it is the intention of the company to erect a big 

 plant later. An Ontario charter has been taken out. The first 

 shipment of machinery is now en route. 



iMifiRTs into Malaga. Spain, fro.m the United States dur- 

 ing 1919 included 25 kilos of oil and rubber cloth (kiln 2.2046' 

 pounds), .\mcrican manufactured goods are favorably consid- 

 ered in Spain. The main dilficulty to their increased sale in 

 that market is the lack of proper sales agencies and delays in the- 

 ocean freight service between the United States and Scain. 



