Febkuary 1, 1915.] 



THE INDIA RUBBER WORLD 



271 



New Machines and Appliances. 



KEMPTER'S MIXER. 



Till' illustration shpws an end elevation in section di a novel 

 mixer or grinder. The trough, which is suppbrted b) side 

 frames i not shown, ha- a 

 hinged section on the right for re 

 moving the charge: The two 

 kneaders are journalcd in bearings 



and are driven towards each Other 



in the direction indicated by the ar- 

 rows. These rolls mix the rubber 

 and compounding ingredients auto- 

 matically, with a grinding and 

 kneading action, the mass being 

 drawn between the kneaders and 

 the circular walls of the trough'. 

 [German patent No. 279,649.] 



A — Mixer Trough. 

 B .ind C — Kneader Rolls. 



DEE'S VULCANIZER, MOLD AND EXPANSIBLE 

 CORE. 



IN this invention mechanical pressure is applied to the inner tire 

 * casing during vulcanization. It is a combination of vulcan- 

 i/er press, mold and collapsible and expansible core. 



The casing is built up on the core and enclosed in the mold, 

 which is then transferred to the vulcanizer press. The center 

 block is located on the auxiliary piston and the four spring arms 

 inserted. A second mold, containing a tire, is then placed on top 





■■ 



. « — Cylinder. B — Ram. C— -Platen. 1 I— Auxili.-u v Cylinder. H-Aus- 



illary Piston. f_Inlet and Outlet Valves! (," — Inlet and Outlet Pi]*-. 



H— Vulcanizer Shell. /—Two-part Mold-. J— Center Blocks, A.'— Spring 

 Arms. 



..... 



of the first mold and a second' blo<rk is Incited on the first and 

 the spring- arms inserted.'' Tin's process is repeated until the 

 heater 'is full. '-The -'Heati-vS then WetterFm plac-e'^pWissW -Is 'ap- 

 plied to the molds by the main ram and live steam is airfrtirrerf to 



the heatei Pressure is then applied to the auxiliary piston which 

 raises the center blocks, spreading the spring arms radially. This 

 re, stretches the fabric and shapes the tire and 

 tread againsl the inner walls of the mold. [United States patent 

 No. 1,120,453.] 



A VACUUM VULCANIZER FOR FOOTWEAR. 



CROWLEY S apparatus for vulcanizing hollow articli 

 subjects the inner and outer surfaces to different 

 or vulcanizing media, 

 and abo to different 

 pressures. The vacuum 

 chamber shown in cross 

 sei tion i: made long 



enough to support I 

 eral hoot trees held in 

 position by pins, A 

 t r a n s v e r - e bar with 

 twisted ends fits in the 

 staggered racks and sup 

 ports the chamber and 

 trees. The hoots are 

 built up on the trees and 

 seated in position on the 

 hollow shell in the work 

 room. Then, with oth- 

 ers, it is placed in 

 racks secured in an or- 

 dinary heater. Air pres- 

 sure or vacuum is ap- 

 plied to the interior of 

 the perforated tree through the connections and openings pro- 

 vided lor that purpose. [United Stales patent No. 1,122,695:] 



MACHINE FOR CEMENTING VAMP LININGS. 



i \ acuurn Chamber. B — Transverse Bar. 

 C — Air Opening.' D — Boot. E — Boot 

 Tree. F — Tree Perforations. G — Air 

 Connection. H — Supporting Pins. / — 

 Racks. 



GILLESPIE'S machine applies rubber cement to leather shoe- 

 linings in an even and uniform manner. The base support! 

 a cement tank in which revolves a felt-covered cement-applying 

 roller. The tank is divided bj two adjustable partitions which 

 control the amount of cement fed to the applying roller. The 

 surplus is scraped off this roller and flows back into the tank. 

 The brass presscr roller is adjustable vertically. This roller also 



i 11, e I'M, /■: EeWrH Tank. (."---Applying Roller. D— Brass 



I'resser RdUer. /;— Roller Adjnsting Screws. F — Hinged Partitions. 

 ■ r.,,1, ti,,n \d;ns,„, K Sot,,,. ,/■!..„«. i Scraper, /—Upper , Scraper. 



-"'. " t ' Uv ' r - v T:,,,, . c > 



has' a scraper that 'removes the surplus, which' Is caught in a 



trough and returned to the tank. The sha* J llftirlg r is fed im<>' the 



