November 1, 1912.] 



THE INDIA RUBBER WORLD 



81 



for the dryiiiR of rubber and rubber compounding material, 

 which consisted of a vacuum drying chamber made of cast iron, 

 very strongly reinforced with bridged ribs on the outside to re- 

 sist external pressure and prevent the chamber from collapsing 

 when under very high vacuum. Inside of the dryer there is a 

 series of w-elded heating shelves connected with expansion bands 

 to steam headers for inlet and outlet of the steam. The chamber 

 is connected to a condenser, tlie inside of which consisted of a 

 number of copper tubes encased in a cast iron water jacket for 

 condensing the vapors carried over from the vacuum drying 

 chamber; the bottom of the condenser is a receiver, with two ob- 

 servation glasses, in front of which on the inside, is a copper 

 drain pipe, permitting an ocular demonstration of the condensed 

 vapor coming from condenser tubes to the receiver. 



The condenser is connected to a dry vacuum pump, wdiich ob- 

 tains and maintains the vacuum on both condenser and dryer. 

 The pump — an innovatiim in dry vacuum pump construction, as 

 it has one rotary valve for both suction and discharge, attracted 

 a great deal of interest at the exhibition, on account of its sim- 

 plicity and etTectiveness. A mercury column was attached to 



washing, masticating and rubber solution machine. If any fac- 

 tory man went to the show and missed this exhibit, he was un- 



The John Rovle Tubing M.^chines. 



show the efficiency of the pump. This exhibit was in charge of 

 Messrs. Chas. Devine and Howard Mason. 



THE ROYLE TUBING MACHINES. 



John Royle & Sons, of Paterson, New Jersey, exhibited five 

 different tubing machines, making tubing of various sizes ; the 

 smallest machine making a tubing only 3/32 of an inch in diam- 

 eter, used chiefly to hold artificial flowers on the feminine 

 bonnet. The second-size tubing (machine made tubing) of a little 

 larger size, but still of a small diameter, such as is used on 

 children's toys — the jumping frogs, for instance, which one sees 

 offered by venders on city sidewalks — to the great delight of the 

 children, and to the equal distress of their elders who would like 

 to get along about the more serious affairs of life. There were 

 larger machines that made the rubber lining for garden hose. 

 Where the hose is made particularly strong, as in some instances 

 with three layers of rubber and two layers of fabric hose, it 

 has to go through the machine three times — each layer rep- 

 resenting a distinct operation. These machines make the famous 

 garden hose that comes in 500 foot lengths. The largest machine 

 displayed there turned out tubing of 2>4 and 3 inches in diam- 

 eter, for fire hose; and also for the making of jar rings. 



INTERESTING WASHING AND COMPOUNDING MACHINES. 



Werner & Pfleiderer, of Saginaw, Michigan, and four or five 

 places on the continent, had a fine working exhibit of their 



J. P. Devine V.\cuum Dryers. 



fortunate ; because all of these machines were exceedingly inter- 

 esting. The washing machine does its work rapidly and with 

 wonderful thoroughness. The same can be said of the other 

 two machines. Incidentally, the Michelin Rubber Co. has just or- 

 dered 30 more of these rubber solution machines for its works in 

 brance— in addition to the 60 that it is using now. which seems 

 to indicate that this machine has at least the unqualified Michelin 

 approval. 



In fact their masticator and solution mixer have long been 

 used by rubber mills throughout the world. The booth was in 

 char,a;e of C. Fletcher, W. J. Ennis and M. L. Johnson. Dur- 

 ing the Exposition the booth was visited by Mr. Emil Staehle, of 

 Saginaw, manager of the company in this country. 



THE CURTIS & .MARBLE BRUSHING MACHINE. 

 The Curtis & Marble Machine Co., of Worcester, Massachu- 

 setts, made a convincing demonstration of their various ma- 

 chines, emphasizing particularly their brushing machine, which 

 takes in a piece of fabric of any sort — from the thin fabrics 

 used in dress shields to the heaviest tire fabrics and turns them 



Werner & Pfleiderer Co. 



out with smooth surfaces — all the lint and other undesirable mat- 

 ter being entirely removed, so that the fabric can receive a rub- 

 ber coat to the best advantage. This brushing machine also 

 takes fabric that has been coated with rubber and covers the 



