We exhibit herewith a view of a special modification of a
hoisting engine from the well-known manufactory of J. S. Mundy, of
Newark, N. J., which, as will appear from the appended description,
should be found particularly serviceable in many situations.
As will become apparent from an inspection of the
illustration, the locomotive is complete in itself, and both it and the
hoisting gear can be operated independently and alternately. The simple
throwing over of a lever having a steel clutch attachment, detaches the
locomotive gearing and applies the hoisting gear, and vise versa.
The engines are made with reverse - link motion, and geared up to the
driving wheels 4˝ to 1. these are connected together by rods on all four
wheels, causing them to act as drivers.
The boiler is of steel and amply strong. The water tank is
carried on top of the boiler, and a coal bunker is at the back,
supported by the frame The driving wheels are 30 inches in diameter, and
are of regulation gauge, so that by extending the frame at the hoisting
end and supporting the extension on a pair of pony trucks, the machine
can be made to carry a derrick or crane to be run by the engine as a
regular steam hoisting and swinging crane. The friction drum by which
the hoisting is done, can be made double as well as single, if required.
The boiler is provided with a circulating water bottom ashpit, so that
no fire can escape.
The machine here described will be seen to be specially
adapted for moving freight cars, loading and unloading the same, as well
as for any other hoisting work that may be required of it. The machines
complete, with coal bunker and water tank, are built of four sizes,
giving respectively 20, 30, 40, and 50 horse-power._