THE INDIA RUBBER WORLD 



[Septeme 



wliich form a part of the adjusting meclianism. A motor for 

 raising or lowering the rolls can be placed on the calender 

 frame. 



A friction-driven wind-up and friction-controlled let-off are 

 mounted on tlie frame. This wind-up is driven through a train 

 of cut spur-gears from the end of the rolls to the adjustable 

 friction-clutch on the spindle. AH of the gears are protected 

 by cast-iron guards. The wind-up can be run in either direc- 

 tion by changing one of the spur-gears from one stud to another. 



The calender is equipped with an adjustable knife holder 

 with sufficient number of collars to perform all ordinary opera- 

 tions. 



In the reducing gear cut hcrringbonc-gears are used. The 

 pinion is of forged high-carbon steel and is made in one piece 

 with the shaft. The gear is a steel casting. The shafts are 

 mounted on heavy-duty steel mill-type roller bearings and the 

 gears are encased in a cast-iron oil-tight housing. The lower 

 half of the housing carries the bearing. — (The Wellman-Seaver- 

 Morgan Co., Cleveland. Ohio.) 



THE BRADLEY STENCIL MACHINE. 



The stencil machine here pictured is a device for the shipping 

 department to save time and labor in the addressing of freight 

 and e.xpress shipments. 



On this machine, a consignee's name and address can be cut 

 into a paper stencil in about 30 seconds. With this stencil, the 

 average shipment can be marked in one-fifth the time consumed 



lliat through a direct-action diaphragm valve, an increasing flow 

 of water will be admitted to the line going to the mill-roll, thus 



M.\cHiNE FOR Cutting Stencils. 



by the average marker with a hand-brush. By laying the stencil 

 on the box or carton, and then rubbing the brush over it, the 

 name and address are left imprinted neatly and legibly on the 

 surface of the package. 



On account of its neatness, stenciling is considered an im- 

 provement over tagging or labeling. Because it is always legible 

 and secure, the e.xpress and railroad companies recommend 

 stenciling to obviate lost and delayed shipments. (Bradley Sten- 

 cil Machine Co., St. Louis, Missouri.) 



MILL ROLL TEMPERATURE CONTROL. 



It is a well-known fact that rubber stock while being mixed 

 on the rolls constantly builds up frictional heat, and if not con- 

 trolled it will start vulcanization and result in burning the stock, 

 making it unfit for use. 



The regulator shown in the accompanying illustration auto- 

 matically controls the temperature in mill rolls, and operates 

 in the following manner: 



The thermostatic element of the regulator is placed in the 

 discharge line from the mill-roll, the diaphragm valve being 

 placed on the inlet water line of the mill-roll. The regulator 

 is of the type known as a reverse action regulator— that is, it 

 functions when the temperature reaches a certain height, so 



MILL tfOLLJS. 



7/coj-rype p tempcpatvpe: 



REGULATOR, COrVTROLLINS 

 TEMPCRATURE I F^ MILL-ROLLS 

 Br MEAhJS OF- COOL//WG WATER. 

 /\/OTrrB)^ f^SS MUST BT CHACHCO OPCAI TO 

 WSURE CmCULj<T/OIV .^ROUA/D /REGULATOR STEr-? 



Mii.i. Rou. Temperature Regul.\tdr, 



bringing the temperature down. (Taylor Instrument Co., 

 Rochester, New York. 



RUBBER-DUST COLLECTOR. 



A new application of a well-known principle may be seen in 

 the accompanying illustration that shows a blower being used 

 for removing rubber dust from a tire-buffing machine. 



The installation 

 consists of a direct- 

 connected volume 

 blower set on a 

 platform on tlie side 

 wall. .A. duct runs 

 from the inlet or 

 exhaust side of the 

 blower to two emery 

 buffing wheels. 

 These emery wheels 

 are partly covered 

 by a crescent- 

 shaped hood, which 

 catches the dust 

 from the tire cas- 

 ing, draws it up into 

 the blower, and dis- 

 charges it into the 

 cyclone dust col- 

 lector. The rubber 

 particles and grind- 

 ings after entering 

 the collector drop 



to the bottom through a pipe into a receptacle. (Ilg Electric 

 \'cntilating Co., Whiting and Wells streets, Chicago, Illinois.) 



Removing Dust from Tire Buffer. 



MACHINERY PATENTS. 

 CORD-FABRIC-FORMING MACHINE. 



■"Phe F-\bric-Forminc ;\Iachixe here illustrated produces rub- 

 berized cord fabric for tire building by a method which 

 eliminates the losses of economy inherent in the usual methods 

 of cord-tire construction. 



The machine is of such character that a spool of cord is 

 placed at one point in the machine and in its course through the 

 machine is impregnated with rubber, wound on a mandrel and 

 receives a skim coating of rubber, applied over the cords formed 

 upon the mandrel ; then, this covering of rubberized and coated 

 cords is cut on the bias into plies of width required for building 

 a tire carcass. 



