668 



THE INDIA RUBBER WORLD 



June 1, 1921 



90-dcgr(;e intervals in cither lialf of the couphng.- 

 Gillespie & Co., Edinburgh, Scotland. 



-K. Fauset 



TIRE-SKIVING MACHINE 

 Worn out or cut tires that can no longer be used, represent an 

 enormous outlay of money that apparently is lost. However, the 

 advent of a tire-skiving machine of the type shown in the accom- 

 panying illustration, offers a means 

 of utilizinsj old automobile or mo- 

 torcycle tiros, as relincrs, retreads, 

 inner liners, side-wall support molds, 

 vulcanizing and blow-out patches. 



The machine has a heavy cast- 

 iron cylindrical pedestal that is bolt- 

 ed permanently in place. Power for 

 operation is derived from a belt 

 pulley connected with the main 

 shaft. The revolving rollers, which 

 carry the tire, are adjustable for the 

 different sizes and styles of tires. 

 The skiving knife is also adjusta- 

 ble to slice off the bead to a feather 

 edge, or to skive any distance from 

 the toe of the bead. The cutting 

 operation is facilitated by water 

 dropped at regular intervals on the 

 knife from the little water tank 

 mounted on the protective guard of 

 the knife. The tire is placed on 

 rollers, the knife set, then the power 

 The Maxwell Tire Skiver turned on. The tire will be skived 



with a clean cut, completely through 

 the material.— Maxwell Manufacturing Co., Wichita, Kansas. 



AIR COMPRESSOR FOR GARAGES AND VULCANIZING SHOPS 



In this compressor the air is forced from the larger cylinder 

 through the cooler into the smaller cylinder, giving a relative 



Gasco Two-Stage Air Compressor 



capacity of the two cylinders of 4 to 1, which is claimed to be 

 greater than a single-cylinder compressor of its size. 



Both cylinders and crank cases are cast in one and machined 

 in one operation, insuring perfect alinement. The crank shaft is 

 drop- forged l^g-inch diameter, machined and ground. The main 

 bearing is of phosphor bronze, Z'A by 2 inches, and is inter- 

 changeable. The compressor is so designed that the hole through 

 which the piston enters may be opened at any time without re- 



moving the belts. The cylinders are 3 inches and i'A inches, cast 

 in block, with 3-inch piston stroke— speed 200 to 250 r. p. m. 

 The maximum pressure is 200 pounds. The ^-h.p. motor is 

 cither for direct or alternating current. The air tank is guar- 

 anteed ISO pounds working pressure. All the fittings are of the 

 best material. The height of the compressor over all is 43 inches 

 and the floor space 19 by 40 inches.— Gasco Manufacturing Co., 

 Lancaster, Pennsylvania. 



RECORDING THERMOMETER 



.\ new recording tlierniomctcr is here illustrated, combining 

 many new features and constructional a'lvantages. For instance, 

 a rubber gasket fits tightly in the door and is squeezed together 

 when the door is fastened down, making the instrument dust and 



The Brown Thermometer 



moisture proof. An automatic pen release lifts the pen from the 

 paper automatically when the chart is being changed, and replaces 

 it when the door is closed. A special designed chart knob with 

 a few turns grips the chart tightly. The chart clips are mounted 

 on the door and swing aside automatically when the door is 

 opened, without the necessity of slipping the chart under each 

 clip. — The Brown Instrument Co., Philadelphia, Pennsylvania. 



SMALL EXXCTRIC TOOLS FOR RUBBER FACTORIES 



Both the portable electric drill and electric grinder shown in 

 the picture herewith are motor driven, using direct or alternating 

 current, and automatically stop when not in use. This is due to 

 the fact that the current 

 contact functions through 

 a spring lever in the 

 handle which is released 

 as soon as the pressure 

 of the operator's grip is 

 removed, much on the 

 same order as the valve 

 on a pneumatic hammer. 

 The switch is a quick 

 make and break, located 

 in the top handle and 

 operated by the palm of 

 the hand. The casings of 

 the motors are of high-grade aluminum. Self-oiling ball bearings 

 are used throughout. Motor windings are protected from any 

 possible injury by the liquid tight grease compartments for the 

 gears. The motors will stand severe usage and overloading. 

 Ten feet of extra heavy flexible cord is furnished with each 

 equipment. 



WoDACK Electric Drill and Grinder 



