66 Transactions of tee American Institute. 



REPORT OF THE COMMITTEE 



APPOINTED TO 



TEST STEAM BOILERS 



AMERICAN INSTITUTE EXHIBITION, 1871. 



To the Board of Managers, American Institute of the City of New 

 York : 



Gentlemen : — The undersigned, the Committee appointed by you 

 as Judges in Department V, Grouj) I, beg leave to report as follows, 

 in reference to the steam boilers entered in competition at the indus- 

 trial exhibition of the Institute, just closed : 



The boilers thus entered were five in number. Taken in the order 

 in which we tested them, they were the Root, the Allen, the Phleger, 

 the Lowe, and the Blanchard boilers. 



The Committee propose to compare these boilers, and to state what 

 they consider their relative values in the following points, viz. : 

 1st. Safety. 2d. Durability. 3d. Ecomomy in fuel. 4th. Capacity 

 for making steam. These four points are believed to cover all essen- 

 tial considerations in selecting a good steam boiler, with the single 

 exception of first cost, which can be more satisfactorily investigated 

 by the purchaser than by your committee. 



1st. Safety. — The first three boilers named above, the Root, the 

 Allen, and the Phleger, belong to a class which is rapidly and 

 deservedly coming into favor, and which is known as the " sectional 

 boiler." 



In this class, of which there are many different kinds in the mar- 

 ket, the water space, and frequently the steam space of the boiler, is 





