October I, r?I8.] 



THE INDIA RUBBER WORLD 



New Machines and Appliances. 



ENGLISH TYPE SINGLE-GEARED MIXER. 



SEVERAL ao\el features in heavy mill construction are 

 embodied in the single-gear mixer shown in the accompany- 

 ing illustration. The rolls, 22 inches front and 26 inches back, 

 by 84 inches wide, are of chilled cast iron, the working faces 

 being ground and polished. The necks of the rolls are 10 

 inches in diameter and journaled in heavy boxes, lined with 

 the best phosphor bronze. Sight-feed lubricators supply oil t' 

 the bearings and large steam inlets and outlets of an improved 

 type are provided. The massive cast-iron side-frames that sup- 

 port the rolls are titted with strong steel caps and the frames 

 are bolted to a heavy cast-iron bed plate, six inches deep. The 

 rubber compound guides are of an improved adjustable type, 

 provided with a steel stay-bar that takes up the thrust on the 

 guides during milling operations. The roll-adjusting screws are 

 of large diameter with square threads and equipped with capstan 

 heads for large roll-adjusting bars. The cast-iron safety nuts 

 are designed to fracture when the strain on the machine is 

 excessive. 



The main driving-gear, which is a cast-iron machine-cut 

 spur-gear with 14-inch face and 3j4-inch circular pitch, is keyed 

 to the back roll and driven by a machine-cut steel pinion on 

 the floor-sliaft and operated liy a dog or claw-clutch. The 



Tliese machines are furnished with motor-drive in three 

 sizes, operated by direct or alternating current or by hand, 

 No. 1 taking labels up to live inches wide, No. 2 up to eight 



pinion can be made to slide on the shaft if two or more mills 

 are arranged on one line. The front roll is driven from the 

 back roll and the herring-bone gears are cast-steel, machine- 

 molded with long teeth to allow for roll adjustment. They are 

 14 inches wide and three-inch circular pitch. (David Bridge & 

 Co., Limited. Lastlcton. Manchester, England.) 



UNIVERSAL LABEL-PASTING MACHINES. 



These machines atford a quick and efficient means for applying 

 paste to labels or, in fact, to any surface, thereby doing away 

 with the unsanitary paste pot and brush. One type of machine 

 is designed to apply paste to the edges of surfaces, and another 

 is used to moisten gummed labels up to 5 inches in width. This 

 machine is also adapted for moistening stamps where large 

 quantities are used. 



The operation is quite simple and requires only ordinary in- 

 telligence to produce satisfactory work in quantity. All that is 

 required is to remove the front cover, fill the paste box about 

 one-half full, and replace the cover. The label is then laid on 

 the front plate and fed between the rolls that are operated by 

 a motor-drive, ir by hand power if so desired. The amount ul" 

 paste is regulated by adjusting the feed-roll scraper located in 

 the paste box. 



mclies wide, and No. 3 up to twelve inches wide. Tlie No. 4 

 machine applies paste to the edge of a sheet or wrapper over a 

 space from J^-inch to 3yi inches wide. The No. S machine is 

 used for applying water to gummed labels or stamps and the 

 No. 6 machine is an improved model with the same dimensions 

 as machine No. 1. (A. G. Prior, 665-671 Broad street, Newark, 

 New Jersey.) 



BRAKE-LINING TESTING MACHINE. 



The production of brake lining has become a firmly estab- 

 lished branch of the rubber industry and manufacturers are 

 supplying the automobile trade and makers of machinery requir- 

 ing clutch facings with a material that will withstand severe 

 usage under varying conditions. 



A special testing machine that has been designed to determine 

 the wearing resistance of brake linings, subjects the material to 

 a wearing pressure of 50 pounds to the square inch for a period 

 of 20 hours, and at a temperature of 212 degrees. The percentage 

 of wear shown in this test indicates the heat-resisting quality 

 of the fabric and the absence of combustible material in the 



brake linings. Furthermore, the maclnne is arranged so that 

 the lining can be subjected to any pressure and immersed in oil 

 nr water, or covered with dirt, and by a system of weights it is 

 possible to determine exactly the amount of pressure required to 

 bring a car of any weight to rest in any space. (Standard Woven 

 Fabric Co., Walpole. Massachusetts.) 



