72,054.--CONDENSING ENGINE.--William A. Lighthall, New York city.
I claim the arrangement of the ordinary jet condenser, B, air pump, D,
and hot well, E, with the surface condenser, F, and the valves, H K, and
L, as shown and described, so that the change from the use of the jet
condenser can be made at will, and _vice versa_,
73,055.--MACHINE FOR FORMING AND TEMPERING ELLIPTIC SPRINGS.--Geo. S.
Long, Bridgeport, Ct.
I claim, 1st, A steel spring former, substantially as shown and
described, and for the purposes set forth.
2d, The vibrating rod, B, and shoe, f', and any former, F, in
combination with the slotted wheel, W, and roller, W', substantially as
shown and described, and for the purpose set forth.
3d, The hollow shaft, s', and roller, W, in combination with the binder
or presser, D, substantially as shown and described, and for the
purposes set forth.
4th, The sliding crank pin, p, in combination with the slotted wheel, W,
and slotted vibrating rod, B, substantially as shown and described, and
for the purposes set forth.
72,056.--FURNACE FOR HOT AIR BLAST.
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