QUAKER" WHITING 



N 



5 O 



EASX 42nd STREE 

 NEW YORK 



MINERAL RUBBER 



)0 NOT KNOW IT ALL, 



I have successfully handled 

 ay cases in the past 20 years. 



What are YOIR troubles? 

 EDERICK J. MAYWALD, F.C.S. 



Rubber Chemist 

 'ARK PLACE NEWARK, N. J. 



Analyses, Tests, Experimental Work 



ALFRED HALE RUBBER CC 



Incorporated 1900 ATLANTIC, MASS. Founded 1& 



Reliable Rubber Goods 



MOLXIED GOODS 



CRUDE RUBBEJl STANDARDIZED 



RUBBERIZING OF FABRICS 



U. S. Pat. Off. 



Edited by HENRY C. PEARSON 



Reg. United Kingdon 



Vol. LXIII. No. 2 



NOVEMBER 1, 1920 



35 CENTS 



$3.00 Per Year. 

 $3.50 Abroad. 



] 



Avoid Oxidation and Overheating by Using "Buflovak" Vacunm Dryers 



perature or 

 labor cost. 



The high vacuum and lowr temperature of "Buflovak" Dryers absolutely prevent over-heat 

 ing and oxidation, which are constant dangers to rubber when exposed to high tern 

 oxygen while drying. Other advantages are economy of drying time and reduced 



"Buflovak" Vacuum Dryers dry all kinds of sheet rubber, rubber 

 compounds, etc. 



Profit by the experience of others and get all the facts before de- 

 ciding on your drying equipment. 



We build a com- 

 plete line of Va- 

 cuum Dryers, 

 Evaporators and 

 Chemical Appa- 

 ratus. 



ii.W'l- 



"Buflovak" Vacuum Shelf Dryer 



"Buflovak" Rotary Dryer 



Buffalo Foundry & Machine Co. 



1577 Fillmore Ave., Buffalo, N. Y. 



New York Office: 17 BATTERY PLACE 



yj JO 



LAMPBLACKS ESPECIALLY FOR RUBBER MANUFACTURE 



SAMUEL CABOT, INC., BOSTON. MASS. 



