"QUAKER" WHITING 



. VAIMDERBII 



so EAST 42nd STREET 

 NEW YORK 



MINERAL RUBBER 



REAL SERVICE 



ivh^t you want when something goes 

 ng in your plant. 



IS WHAT I GIVE YOU. 



EDERICK J. MAYWALD, F. C. S. 



Rubber Chemist 

 [»ARK PLACE NEWARK, N. J. 



ALFRED HALE, RUBBER CO 



Incorporated 1900 ATLANTIC, MASS. Founded 183 



Reliable Rubber Goods 



MOLDED GOODS 



CRUDE RUBBER STANDARDIZED 



RUBBERIZING OF FABRICS 



MTi^ 



!;Gim-Pu*^ 



I'. S. Pat. Off. 



Reg. United Kingdom 



Edited by HENRY C. PEARSON 



Vol. LXIII. No. 5 



FEBRUARY 1, 1921 



35 CENTS 



$3.00 Per Year. 

 $3.50 Abroad. 



^ 



Avoid Oxidation and Overheating by Using ''Bufiovak" 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. 



f- --...L 



We build a com- 

 plete line of Va- 

 cuum Dryers, 

 " Siiri^ Evaporators and 

 Chemical Appa- 

 ratus. 



U 



^'vy^^SS^ 



"Buflovak" Vacuum Shelf Dryer 



"Buflovak" Rotary Dryer 



Buffalo Foundry & Machme Co. 



1577 Fillmore Ave., Buffalo, N. Y. 



New York Office: 17 BATTERY PLACE 



5„vs!? 



LAMPBLACKS ESPECIALLY FOR RUBBER MANUFACTURE 



SAMUEL CABOT, INC., BOSTON. MASS. 



Entered as second-class matter Ortober 4. 1899. at the post office at New York. N. V.. under tiie Act of March 3, 1879. 



PiihlitihcH mnnrhlv at 2S W^t 4Sth Street. .New_ York. 



