I claim, 1st, The arrangement of the hinged tongue, E, upon the plate,
A, so as to cover the ring, substantially in the manner herein set
forth.

2d, Constructing the hook or projection, D, upon the inside of the
plate, by forming an opening, d, through the plate, substantially as and
for the purpose herein set forth.


71,902.--SNOW PLOW.--Abel Nutting, Quincy, Mass

I claim the rotary plow, arranged to operate substantially as set forth.

Also, in combination with such a plow, inclines, or shares, fixed, with
respect to the frame by which they are supported, substantially as
described.


71,903.--STEAM GENERATOR.--Isaac R. Oakford, Philadelphia. Pa.

I claim a steam generator, composed of a series of cylindrical boilers,
of round ends, provided with openings for steam and water, and arranged
in a vertical and inclined position, in the manner and for the purpose
above set forth and described.


71,904.--CASTER FOR FURNITURE.--P.B. O'Brien and Wm. E. Sparks, New
Haven, Conn., assignors to P.B. O'Brien.