826 



THE INDIA RUBBER WORLD 



August 1, 1921 



While originally designed for use solely in rublK-r maiinfac- 

 ture, the truck has Iiecn foniul i>r;K-ticaI)lc in handlini; wire in 



The Baker Truck 



coils, for transporting rims, or any other material of this descrip- 

 tion.— The Baker R. & L. Co.. 2180 West 25th street, Cleveland, 

 Ohio. 



INNER-TUBE WRAPPING MACHINE 



A simple lathe for wrapping inner tubes is shown in the ac- 

 companying illustration. The base consists of two channel irons 

 carrying the head and tail stock centers. The machine is in- 



TuBE Wr.xppixg L.\the 



tended for belt-driven operation under control of a foot-treadle. 

 This type of machine is inexpensive but effective for its purpose. — 

 The Banner Machine Co., Columbiana, Ohio. 



A NEW TIRE-REPAIR AIR-EAG 



An inflatable air-bag containing an internal device for steam- 

 heating the compressed air is shown in the illustration. This 

 arrangement makes it possible to use a full head of air for 

 pressure and to immediately heat this air with the inside heating 

 coil to the temperature best suited to the job. 



Fredd's Heating Air-Bag 



This method results in a better and speedier cure on sectional 

 jobs by curing from both sides during the entire process. The 

 steam circulates in the heating device inside the bag raising 

 the temperature of the compressed air which in turn transmits 

 the heat to the tire.— Fredd's Vulcanizing Flant, Hancock, 

 Michigan. 



MACHINE FOR SCIENTIFIC TIRE INSPECTION 



Repair men should be sure that every tiny nail head and small' 

 break or cut have been located and that the tire is perfectly re- 

 paired before leaving the shop. Also does the factory manufac- 

 turing tires desire unc|uestionable inspection which will strengthen 



the output record of "flaw- 

 less tires." 



The tiie-inspection ma- 

 chine here shown is stur- 

 dily built of metal, weighs 

 about 125 pounds, and oc- 

 cupies a floor space of 15 

 by 24 inches. For inside 

 inspection the tire is placed 

 upon the two rollers and 

 supported in an upright 

 position by two braces. 

 The tire is spread by pres- 

 sure on the foot-lever, and 

 a slight movement will 

 swing the tire around in 

 either direction upon the 

 rollers. For tread inspec- 

 tion the bead rests on the 

 two rollers and is easily 

 revolved. 



In addition to making inspection scientifically accurate, tubes, 

 reliners and patches can be quickly placed when the tire is on the 

 machine. — The Russ Manufacturing Co., Cleveland, Ohio. 



Ramsdell Tire Inspectio.v Machine 



PORTABLE ELECTRIC GRINDER 



While the new portable electric grinder shown herewith is. 

 of special interest to the tire-repair man and vulcanizer for 

 roughening tires, it may be used either for a hand or a bench 

 grinder. For the latter 

 purpose a quick detach-, 

 able base and an adjust- 

 able tool-rest are fur- 

 nished. Besides the base 

 the equipment comprises 

 two live-inch by one- 

 inch grinding wheels, a 

 wire-brush wheel and a 

 rag-buffing wheel. 



The tool has pistol- 

 grip and trigger switch 

 which gives the operator 

 full control over it at 

 all times, making it un- 

 necessary to shift either 

 band to start or stop it. 



This grinder has sev- 

 eral new and distinctive 

 features and is designed 



after the most approved grinder practice. It has grease lubrica-. 

 tion throughout, forced air-cooling, chrome nickel-steel gears and 

 shafts, and aluminum alloy housing. The entire mechanism is 

 protected from dust and other foreign matter. — Black & Decker 

 Manufacturing Co., Towson Heights, Baltimore, Maryland. 



Portable TiRE-FtoucHENiNC Grinder 



HERMETIC AIR-BAGS— A CORRECTION 



The uniform and equal expansion of tlie Hermetic air-bag is 

 due to a patented method of construction whereby the air-bag is 

 built upon an air-tight container of ring form similar to an inflated 

 inner tube. Ordinarily, air-bags are built on straiglit mandrels, as 

 are inner tul)es. The result is a thick heavy splice where the ends . 



