7S 



THE INDIA RUBBER WORLD 



[November 1. 1910. 



is adjusted vertically. The following are the particulars: Diam- 

 eter of disk, 9 inches : l)asc. 9 inches square liy 8 inches high ; 

 height over all, 15 inclies ; talilc. V/^ hy 11 Vi inches; vertical 



adjustment, 4Va inches; angle adjustment, 15 degrees upward, 45 

 degrees downwards ; single phase, 60 cycle, 220 volt motor. 

 [The H. .\. Smith Machiuerv Co.. Syracuse. New York.l 



M. & W. RATCHET WRENCH AND ROLL ADJUSTING SCREWS. 



.\djustment of the rolls of heavy washers, mills and refiners 

 is a matter that requires force and considerable skill. The 

 powerful screws ■^ "" 



controlling the 

 roll adjustments 



are usually operated by hand wheels 

 or bar levers attached to the screw 

 heads and, moreover, power is 

 sometimes used to aid in coarse adjustments. 



In the accompanying illustration is shown a com- 

 bination ratchet wrench and adjusting screw of 

 standard size and thread that readily recommends 

 itself to mill users. It is undoulitedly a time saver 

 as well as a powerful tool for conveniently obtaining, 

 both coarse and fine adjustments of the rolls. 



Carefully selected materials are used in construc- 

 tion of this device, the lever being cast steel, the, 

 cover plate, steel, the screw, vanadium steel, and the pawls and 

 shifter levers, drop forgings. [Morgan & Wright. Detroit Rub- 

 ber works, Detroit, Michigan.] 



MACHINERY PATENTS. 



GAKMETER'S INTERNAL PRESSURE VULCANIZING APPARATUS. 



Hollow rubber articles are cured while subjected to internal 

 fluid pressure, according to this invention, w'hich is here illus- 



trated and described, as applied to the making of tire casings. • 

 The drawing is a cross-section of a two-part tire mold A, show- 

 ing casing B, core C, and the round flask D, containing carbon 

 dioxid. 



The flask is charged in a separate apparatus and a fusible plug 

 1£, inserted. One end of the flask is cimnected to the pipe F 

 that conveys the gas under pressure to the space between the 

 core and the casing. The other end of the flask is supported by 

 a stud G. 



The heat of the steam immediately melts the plug and releases 

 the gas, which applies pressure to the inner part of the casing 

 during vulcanization. [John R. Gammeter, Akron, Ohio, assignor 

 to The B. F. Goodrich Co., a corporation of Xew York. United 

 States patent No. 1,200,603.] 



ULTRA-VIOLET RAY VULCANIZEH. 



Solutions of india' rubl)er are vulcanized by ultra-violet rays, 

 care being taken that the operation is not continued sufliciently 

 long to injure the rubber. The sulphur employed may be replaced 



by any sul])hide which is 

 decomposed by the rays ; 

 for example, carbon, 

 allyl, or antimony sul- 

 phide. Very dilute solu- 

 tions of tKe -.vulcanized 

 rul)1)er tluis obtained ; for 

 example. 0iy4).6 per cent, 

 may be used for cement- 

 ing, and only a very thin 

 cementing layer is re- 

 quired. A maximum of 1.25 per cent is claimed. The illustra- 

 tion is a sectional side elevation of the apparatus, which may be 

 employed for treating any liquid or solid product in thin layers 

 with ultra-violet rays. 



It is an enclosed machine supported by suitable standards, and 

 underdriven by a longitudinal shaft located on one side of the 

 casing. Keyed to the shaft is a worm that engages a worm 

 wheel driving the drum A, which also drives the opposite drum 

 B by sprocket gearing. The endless belt carrier C passes around 

 these drums and is driven by them. The product to be treated 

 being introduced through the hopper D, is carried by the endless 

 belt over the adjustable guide roller E, down and all around the 

 quartz mercury vapor lamp F, then over the adjustable guide 

 roller G and around the drum B. The material is removed from 

 the belt by a scraper H and delivered to a receptacle /. [H. P. 

 M. A. OHvier, Paris, France. British patent No. 7,823 (1915). 

 Not yet accepted.] 



APPARATUS FOR EXHAUSTING THE INTERIOR OF RUBBER ARTICLES. 



In many processes of pressure cure, as applied to the manufac- 

 ture of boots and shoes, hollow perforated forms of special con- 

 struction are used. The present invention, however, provides a 

 device that permits the use of solid forms 

 or lasts such as are commonly used in foot- 

 wear manufacture. The accompanying 

 drawing is a side elevation partb' in sec- 

 tion, showing this device applied to a solid 

 boot form. 



The metal cap A is adapted to fit over 

 the l)oot form B. and comprises a vacuum 

 chamber C and a tapered, wedge-shaped 

 conduit D ivhich separates the boot from 

 the form and establishes communication be- 

 tween the inner surface of the boot and the 

 vacuum chamber. 



The metal cap is provided with a tapered nozzle E tliat fits 

 over a tapered nipple F and low pressure or a vacuum is sup- 

 plied from the pipe G. A seal H laps the edge of the boot to 

 insure a tight joint during application of the preponderating 

 outside pressure. [Chester J. -Randall, assignor to The Good- 

 year's Metallic Rubber Shoe Co., both of Naugatuck, Connecticut. 

 United States patent No. 1.199.420.] 



