UUnllLll Tiiiiiiiiu 



R e: e: T 



mmtllAL KUDDtIf 



'j Vigilance is the price ol 

 ,nanu(acturing. I am helping 

 acturers every day to correct 

 in their processes. Can I help 



EDERICK J. MAYWALD 



K PLACE NEWARK, N 



ALFRED HALE RUBBER CO. 



Founded 1837 ATLANTIC, MASS. Inc. 1900 



Reliable Rubber Goods 



MOLDED GOODS 



CRUDE RUBBER STANDARDIZED 



RUBBERIZING OF FABRICS 



Edited by HENRY C. PEARSON 



Vol. LXII. No. 4. 



JULY 1, 1920 



$3.00 Per Year. 

 $3.50 Abroad. 



STRENGTH and RESILIENCY 



In Vacuum Dried Rubber 



Overheating and oxidation, — a constant danger to rubber when exposed to 

 high temperature and oxygen vs^hile drying, — are entirely avoided in "Buflovak" 

 Vacuum Dryers, with the result that Strength and Resiliency are preserved in the 

 highest degree. 



The high vacuum and low temperature of "Buflovak" Dryers absolutely pre- 

 vent overheating and oxidation. Other advantages are economy of time and re- 

 duced labor cost. 



. "Buflovak" Dryers dry all 



I _ _.!-,rf^5?^^f| kinds of sheet rubber, reclaimed 



rubber, rubber compounds, etc. 



Profit by the experience of 

 others and let us give you all the 

 facts before deciding on your 

 drying equipment. 



Headquarters for 



Vacuum Dryers, 



Evaporators, 



Chemical Apparatus 



#1 



"Bunovak" Vacuum Shelf Dryer with 

 Condenser eind Vacuum Pump 



Buffalo Foundry S Machine Co. 



1577 Fillmore Ave., Buffalo, N. Y. 



New York Office: 17 BATTERY PLACE 



LAMPBLACKS ESPECIALLY FOR RUBBER MANUFACTURE 



SAMUEL CABOT, INC., BOSTON. MASS. 



