IMPROVEMENTS IN THE CON- STRUCTION AND APPLICATION OF LOCOMOTIVE ENGINES FOR HAULING AND OTHER PURPOSES IN AND ABOUT MINES AND OTHER PLACES
Year: 1877

page_text: LETTERS PATENT to William Lishman, of Bunker Hill Fence Houses, in the
County of Durham, Mining Engineer, and Janes Young, of the same Place,.
Mechanical Engineer, for the Invention of IMPROVEMENTS IN THE CON-
STRUCTION AND APPLICATION OF LOCOMOTIVE ENGINES FOR HAULING AND
OTHER PURPOSES IN AND ABOUT MINES AND OTHER PLACES."
PROVISIONAL SPECIFICATION left by the said William Lishman and James'
Young at the Office of the Commissioners of Patents on the 1st September
1877.
WILLIAM LISHMAN, of Bunker Hill Fence Houses, in the County of Durham,
Mining Engineer, and JAMES YOUNG, of the same Place, Mechanical Engineer.
"IMPROVEMENTS IN THE CONSTRUCTION AND APPLICATION OF LOCOMOTIVE ENGINES
FOR HAULING AND OTHER PURPOSES IN AND ABOUT MINES AND OTHER PLACES."
This Invention relates to the application of comparatively small locomotive
engines of novel character and construction, consisting essentially of a receiver
containing highly compressed air for actuating the engines, and which is carried on
four or more wheels, coupled or otherwise, the valves of the engine being worked
by one excentric to each cylinder, the same being loose upon the shaft, and held in
their various positions by means of a tusk or clutch keyed on the shaft, the means of
reversal being obtained by the driver moving the engine (which is of light weight)
a few inches by hand or otherwise.
These engines are to be used for hauling and other purposes in and about mines
and other places, in lieu of horses and ponies or manual labour.
The Drawings hereto annexed shew several views of a locomotive engine arranged
and constructed in accordance with our improvements.
Figure 1 is a side elevation; Figure 2 is an end elevation; and Figure 3 is a plan,
partly in section.

page_text: a is a tank or receiver containing highly compressed air; b, b, are wheels on which
it is supported; c, c, are the working cylinders and pistons; and d is the excentric
for actuating the slide valves c'; e is the starting lever.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Lishman and James Young in the Great Seal Patent Office
on the 12th February 1878.
WILLIAM LISHMAN, of Bunker Hill Fence Houses, in the County of Durham,
Mining Engineer, and JAMES YOUNG, of the same Place, Mechanical Engineer.
"IMPROVEMENTS IN THE CONSTRUCTION AND APPLICATION OF LOCOMOTIVE ENGINES
FOR HAULING AND OTHER PURPOSES IN AND ABOUT MINES AND OTHER PLACES:'
This Invention relates to the application of comparatively small locomotive
engines of novel character and construction, consisting essentially of a receiver
containing highly compressed air for actuating the engines, and which is carried on
four or more wheels, coupled or otherwise, the valves of the engine being worked
by one excentric to each cylinder, the same being loose upon the shaft and held in
their various positions by means of a tusk or clutch keyed or forged on the shaft,
the means of reversal being obtained by the driver moving the engine (which is of
light weight) a few inches by hand or otherwise.
These engines are to be used for hauling and other purposes in mines in lieu of
horses and ponies or manual labour.
The Drawings hereto annexed show several views of a locomotive engine arranged
and constructed in accordance with our improvements.
Figure 1 is a side elevation; Figure 2 is an end elevation; and Figure 3, a plan,
partly in section.
a is a tank or receiver containing highly compressed air; b, b, are wheels on which
it is supported; c, c, are the working cylinders and pistons; and d is the excentric
for actuating the slide valves c¹; e is the starting lever.
Having thus described the nature of our Invention, and the manner of performing
or carrying the same into practice, we do not claim separately any of the parts which
are well known and in common use; but what we claim is, the improved arrange-
ment and construction (more especially in the means of reversal) of locomotive
engines actuated by compressed air, and in the application thereof for hauling and
other purposes in mines, substantially in the manner herein-before described and
represented in Drawings annexed.
In witness whereof, we, the said William Lishman and James Young, have
hereunto set our hands and seals, this Seventh day of February, in the
year of our Lord One thousand eight hundred and seventy-eight.