648 



THE INDIA RUBBER WORLD 



June 1. 1921 



stretched with forceps over the neck of the cylinder, and is then 

 engaged with the lower one of the rings. By depressing a treadle 

 the air in the cylinder can be partly exhausted and the undamped 

 part of the glove is drawn inward and intlatcxl. The treadle at 

 the same time brings down an 

 arm carrying the second ring, 

 which snaps upon the tirst. When 

 the treadle is released the arm 

 carries up with it the rings hold- 

 ing the fully opcned-up glove 

 ready for the surgeon's hand. 

 Often the glove is made easier to 

 put on by being dusted while 

 distended in the cvliiuk-r neck. 



STERILIZING RUBBER GLOVES 



Oversterilization by prolonged 

 boiling is the commonest cause 

 of damage to surgeons' gloves. 

 The makers suggest limiting the 

 boiling to two or three minutes, 

 after removing powder and sticky 

 material, but often hospital at- 

 tendants think that because in- 

 fected fabrics should be exposed to 

 20 pounds of steam for 20 min- 

 utes, surgeons' gloves should re- 

 ceive equally drastic treatment. Bacteriologists say that tlie e.x- 

 posure of rubber goods to live steam for disinfection is rarely 

 needed, and suggest that steeping surgical rubber articles in a 2 

 per cent formaldehyde solution be substituted lor the destructive 

 sterilization by steaminp. 



A GERMAN INVENTION 



A German inventor has patented a device for sterilizing rub- 

 ber surgical goods in hot glycerine. The articles and the glycer- 



m.\chixe for 

 Applying Gloves 



Ger.man Glove Sterilizer 



ine are placed in a wire tray contained in a small metal trough 

 that is then covered and heated. After 10 to 15 minutes when 

 the temperature of the glycerine has been raised to 110 or 115 

 degrees C, one of the two gas burners is shut off, leaving the 

 other to maintain an even sterilizing tempcr.iture for a further 

 fifteen minutes. The case inclosing the trough has double walls 

 with several layers of wire netting between theiu to distribute 

 the heat evenly and prevent decomposition of the glycerine wliich 

 occurs at 300 C. by excess of heat in any one spot. 



In a subsequent article the methods used in repairing the various 

 types of rubber gloves will be described. 



INTERESTING LETTERS FROM OUR READERS 



THE TIRE MERCHANT CONCENTRATES 



To THE Editor: 



DiAR .sir: The i)rogress made in liusincss methods by the great 

 majority of tire dealers in the past few years has been a 

 source of a great deal of satisfaction to the tire manufacturer, and 

 especially so just at the beginning of his new year which has all 

 the indications of being one of the largest years that the tire in- 

 dustry has experienced. 



The tendency of the live, energetic tire dealer to concentrate his 

 efforts on one or two makes of tires was impressed on my mind 

 very forcibly during a recent trip through this territory. It has 

 not been so very long since the tire dealer felt that, to be a 

 success, it was necessary for him to stock almost all makes of 

 tires, so that he would be in position to give to the motorist the 

 tire that he asked for. The dealer of that day did not practice 

 salesmanship, but followed the line of least resistance and filled 

 the orders of his customers. Today, the energetic tire dealer is 

 picking out one or two of the quality tires on the market, and 

 concentrating his effort on those lines, and his success in following 

 this procedure has been most remarkable, not only from the sales 

 standpoint, but from the standpoint of raising his business in the 

 eyes of the ultimate consumer, the motorist. 



When the motorist goes into a dealer's store and finds that the 

 dealer has a great variety of different makes of tires, he becomes 

 confused and invariably loses confidence in that dealer, whereas, 

 if the dealer is carrying one or two high-class tires, and con- 

 centrates his sales talk on these particular lines, the motorist is 

 immediately impressed with the apparent sincerity of that dealer. 



It is certainly false economy for a dealer to have a variety of 

 makes of tires, for he has his money tied up in duplicate stock, 

 and is wasting both money and space in his establishment. There 

 was a time when the dealer thought that the heavy and wasteful 

 stock was a matter of demand and supply, and to meet the demand 

 it was necessary to have some of all the various makes of tires, 

 until he finally found out that he could not aflford it, that it was 

 needless duplication of stock, was very poor practice from an in- 

 vestment standpoint, and also cut down his efficiency as far as 

 service was concerned, and naturally the pulilic suffered. 



Today, we find the wise tire dealers selecting the line that will 

 give the most service, at least cash. He is concentrating effort and 

 using salesmanship with much better results. The dealers recog- 

 nize the fact that the motorist has ceased to be interested in the 

 so-called cheap tires and is now interested only in a quality tire at 

 a fair price — a product that will give him value for the money 

 expended. In other words, the motorist is interested in tire 

 mileage. 



N. E. West. 



Los .Angeles, California. 



A NEW FIRM FOR FOREIGN BUSINESS C.\LLED THE NiSSHIN 



Trading Co. has been established in Osaka, Japan. The rubber 

 department will handle boots, overshoes, toys and brushes. 



THE QUESTION OF TUBING OR CALENDERING HEEL STOCK 



To THE Kmitor : 



DK.\R sir: The quality of the product of a rubber article 

 would not be different molded from the same stock whether 

 run on the tubing machine or slabbed on the calender. Tech- 

 nically, each method of stock preparation has its advantages 

 dependent on the ultimate form of the object mo'.ded. The con- 

 trollini; consideration is most frequently that of cost. For ex- 

 ample, a perfectly good heel may be prepared by tubing machine 

 or calender, but a large producer would naturally employ the 

 method of slabbing the stock on the calender and dicing out the 

 heel shapes to fit the mold cavities, because this method admits 

 of greatly increased weight of output and lowers cost. The cal- 

 ender method, too, affords an opportunity for uniting different 

 grades of stock in the same slab if desired. 



SUPERI.VTENDENT. 



