NEW YORK 



uiinkii iiiiiiinu 



Vnalytical work in general for 

 riber manufacturers. The only in- 

 3)endent laboratory equipped with 

 r)ber machinery for experimental 

 i^rk. 

 FEDERICK J. MAYWALD, F. C. S. 



86 Park Place, Newark, N. J. 

 lephone, Market 4541. See also page 70. 



ALFRED HALE RUBBER C 



Founded 1837 ATLANTIC. MASS. Inc. 1 



Reliable Rubber Good: 



MOLDED GOODS 



STANDARDIZES 



KUBBERIZING 



Edited by HENRY C. PEARSON 



Vol. LX. No. 4. 



JULY 1, 1919 



35 CENTS. 



$3.00 Per Year. 

 $3.50 Abroad. 



IS 



"BUFLOVAK" 



Apparatus has won its commanding position in the 

 Vacuum-Drying of sheet and reclaimed rubber, com- 

 pounds and other materials through 

 exclusive features in design 

 and construction. 



"Buflovak" Vacuum Shelf Dryer 



Let us tell you about them. 



'Buflovak" Apparatus Includes 



Vacuum Shelf, Rotary and Drum Dryers 

 Vacuum Drying and Impregnating Apparatus / JHBI 

 Dry Vacuum Pumps — Condensers j^^i 

 Reclaiming and Deresinizing Apparatus 



Rotary Dryar 



Buffalo Foundry & Machine Co 



NEW YORK OFFICE 



52 Winchester Ave 

 BUFFA1X>, N.Y. 



1432 Whitehall Bmlding, 17 Battery Place 



LAMPBLACKS ESPECIALLY FOR RUBBER MANUFACTURE 



SAMUEL CABOT. INC., BOSTON. MASS. 



Enured as »*cond-clas8 matter October 4, 1«99, at the post office at New York, N. Y., under the Ac* of March .1, W7J. 

 PubMshed montUy at 2S West 4Sth Street, Now York. 



