George G. Lafayette and Pitt W. Strong, Brockville, Ontario,
Canada.--This is an improved device to act as a substitute for the
link motion on a reversible engine, or for adjusting the stroke of
a boiler-feed pump, while in motion, so as to regulate the amount of
feed water supplied to the boiler, without the use of an overflow pipe
and cock, and keeping thereby the pump constantly in motion, which
will save the annoyance frequently experienced in pumps by their
refusing to prime after having been stopped for a short time. It may
be further used to control the speed of all kinds of engines, whether
with plain slide valve or with a cut-off valve working on top of the
other by connecting directly to the device a suitable governor, so
as to automatically shorten and lengthen the stroke of the valve, and
give a uniform motion to the engine under different loads.