"QUAKER" WHITING 



T. VA.IMDI 



so EAST 42nd STREET 

 NEW YORK 



MINERAL RUBBER 



3 NOT KNOW IT ALL, 



I have successfully handled 

 cases in the past 20 years. 

 What are YOUR troubles? 

 )ER1CK J. MAYWALD, F.C.S. 



Rubber Chemist 

 iRK PLACE NEWARK, N. J. 



alysc-s, Tests, Experimental Work 



ALFRED hale: RUBBER CO. 



Incorporated 1900 ATLANTIC, MASS. Founded 183i 



Reliable Rubber Goods 



MOLDED GOODS 



CRUDE RUBBER STANDARDIZED 



RUBBERIZING OF FABRICS 



U. S. Pat. Off. 



Vol. LXIII. No. 3 





Rec. United Kinvdoa 



Edited by HENRY C PEARSON 



DECEMBER 1. 1920 



35 CENTS 



$3.00 Per Year. 

 $3.50 Abroad. 



J 



> 



^iiWiiii;iilliWii:iii 



'^iiisififefS'^ 



Avoid Oxidation and Overheating by Using "Buflovak" Vacuum Dryers 



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

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

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



"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. 



^-m 



We build a com- 

 plete line of Va- 

 cuum Dryers, 

 i Evaporators and 

 Chemical Appa- '■ 

 ratus. 



ml 



.,'^>»^ 

 -^*^ 



"Buflovak" Vacuum Shelf Dryer 



"Buflovak" Rotary Dryar 



Buffalo Foundry & Machine Co. 



1577 Fillmore Ave., Buffalo, N. Y. 



New York Office: 17 BATTERY PLACE 



m^tS 



LAMPBLACKS ESPECIALLY FOR RUBBER MANUFACTURE 



SAMUEL CABOT, INC.. BOSTON. MASS 



Catereii aa aocoDd-elasa matter October 4. IM*. at tka post ofiics at New Yorfc, N. Y., 



Published roonlhlr at 2S Wwt «th Stras', Nmr York. 



the Act of March X UTI. 



