THE INDIA RUBBER WORLD 



[October 1, 1919. 



New Machines and Appliances. 



PORTABLE TANK FOR RUBBER CEMENT. 



HE ECONOMICAL DISTRIBUTION of rubber ccmciit to the various 

 departments is a question of interest to all manufacturers 

 that use this material. 

 The cement tank shown in the accompanying illustration is 

 mounted on rub- 



T 



ber-tired 



and m 



easily 



one 



keeps 



dual 



tilled 



wheels 

 may be 

 moved by 

 nan who 

 tlie indivi- 

 containers 

 throughout 

 the entire factory. 

 The pump meas- 

 ures one quart 

 with a full stroke 

 of the plunger, or 

 any intermediate 

 quantities may be 

 drawn by adjust- 

 ing the quantity 

 stops, and a dis- 

 charge register 

 tells the quantity 

 of cement dis- 

 charged from the 

 pump. A hollow- 

 ball expansion 

 chamber, permits 

 expansion of the 

 iquid in the pump 

 cylinder due to 

 changes in tem- 

 perature. 

 The galvanized steel tank is heavily reinforced, all seams 

 teing riveted and soldered from the inside and outside to insure 

 against leaking, and all openings are practically air-tight. The 

 top is flanged and bolted to the shell and may easily be removed 

 for cleaning and a hand-operated agitator insures uniform con- 

 sistency of the rubber solution. ( S. F. Bowser Co., Inc., Fort 

 Wayne, Indiana.) 



RUBBER MILL EQUIPPED WITH INDIVIDUAL MOTOR. 



Electric drives for mill lines are common in large rubber plants, 

 but this method of drive is not always possible or practical in 

 the smaller rublier mills. Even in the large plants individual 



Bowser Rubber Ce.mext T. 



For such installations and the small rubber manufacturer, the 

 individual motor driven mill shown in the accompanying illus- 

 tration has been designed. 



It is substantially constructed with a rigid one-piece bed- 

 plate that supports the mill, drive and motor. The jack-shaft 

 bearing is contained in the housing frame and is of the ring- 

 oiling type. The outboard bearing is also ring-oiled and the 

 reducing gears are machine cut. This type of mill is built with 

 two sizes of rolls ; 16 by 42 inches and 18 by SO inches. (Wm. R. 

 Thropp & Sons Co., Trenton, New Jersey.) 



STACKING TOTE BOXES. 



A new form of stacking steel boxes adapted for use with 

 rubber compounding ingredients is here illustrated. It is stiff 

 in construction, has spot-welded embossed runners which pre- 

 sent the only line of fric- 



CoM POUND Boxes 



liquid tight if desired. It 

 bines maximum strength 

 Britain Machine Co., New Britain, Connecticut.) 



tion and remove wear 

 from the bottom in drag- 

 ging over the floor. Spot- 

 welded guides on the 

 ends guide the boxes in- 

 to stacking position when 

 they are allowed to drop 

 one into another. These 

 guides in conjunction 

 with the runners also 

 serve to prevent any 

 sidewise shifting of 

 boxes while being 

 trucked. 



Box weights do not 

 vary more than two per 

 cent and are furnished 

 s claimed for this box that it com- 

 vith minimum weight. (The New 



DU.\L Motor-Driven Mill. 



ills are required for special work far from the mill-line, for 

 stance, the warming mills in the calender room. 



BALL-BEARING GRINDER AND POLISHING LATHE. 



Improvements are constantly being made in the machinery 

 employed in tire making, for example, the refinement of the 

 bufKng stand. The rough-looking, carelessly-built contrivances of 

 cast iron and steel of 

 former years have been 

 replaced by well-de- 

 signed machines, built of 

 the best inaterials and 

 according to modern 

 methods of constructioiL 



The type here pictured 

 is mounted on a rigid 

 base measuring 20 by 28 

 inches. The steel spin- 

 dle revolves in ball-bear- 

 ings, and measures 1.77 

 inches in diameter at the 

 bearings and 1.2S inches 

 between the flange, while 

 the length is 45.25 inches 

 over all. It is belt 

 driven from a counter- 

 shaft and weighs 550 

 pounds net. (The Webster & Perk Tool Co., Springfield, Ohio.) 



Tire-Buffing Stand. 



