IMPROVEMENTS IN STRAM & OTHER MOTIVE POWER ENGINES
Year: 1872

page_text: LETTERS PATENT to Arthur James Stevens, of the Uskside Iron
Works, Newport, in the County of Monmouth, for the Invention
of "IMPROVEMENTS IN STRAM & OTHER MOTIVE POWER ENGINES."
Sealed the 20th May 1873, and dated the 26th November 1872.
PROVISIONAL SPECIFICATION left by the said Arthur James Stevens
at the Office of the::Commissioners of Patents, with his Petition,
on the 26th November 1872.
I, ARTHUR JAMES STEVENS, of the Uskside Iron Works, Newport, in
the County of Monmouth, do hereby declare the nature of the said In-
vention for "IMPROVEMENTS IN STEAM AND OTHER MOTIVE POWER ENGINES," to
be as follows :—
This Invention relates to improvements in steam and other motive
power engines particularly applicable to winding engines for colliery and.
other purposes.

page_text: The object of this Invention is so to arrange the working parts of a
winding engine that they shall occupy the least possible space, a point
of vital importance in working minerals underground. For this purpose
the cylinder of the engine is placed immediately behind the drums, the
guides and connecting rod being placed between the drums, the shaft of
which is raised so as just to allow the connecting rod to pass underneath,
and the crank shaft is placed in front of the drums. The framing of the
engine may be of cast or wrought iron, and the drums fast or loose, with
or without brakes and with or without reversing gear. By this arrange-
ment the length of the engine may be greatly reduced.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Arthur James Stevens in the Great Seal Patent
Office on the 24th May 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ARTHUR
JAMES STEVENS, of the Uskside Iron Works, Newport, in the County
of Monmouth, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-sixth day of November, in the year of
our Lord One thousand eight hundred and seventy-two, in the thirty-
sixth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Arthur James Stevens, Her special license
that I, the said Arthur James Stevens, my executors, administrators, and
assigns, or such others as. I, the said Arthur James Stevens, my executors,
administrators, and assigns, should at any time agree with, and no
others, from time to time and at all times thereafter during the term
therein expressed, should and lawfully might make, use, exercise, and
vend, within the United Kingdom of Great Britain and. Ireland, the
Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
STEAM AND OTHER MOTIVE POWER ENGINES," upon the condition (amongst
others) that I, the said Arthur James Stevens, my executors or adminis-
trators, by an instrument in writing under my, or their, or one of their
hands and seals, should particularly describe and ascertain the nature of
the said Invention, and in what manner the same was to be performed,
and cause the same to be filed in the Great Seal Patent Office within

page_text: six calendar months next and immediately after the date of the said
Letters Patent.
NOW KNOW YE, that I, the said Arthur James Stevens, do hereby
declare the nature of the said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and by
the following statement thereof, that is to say :—
This Invention relates to improvements in steam and other motive
power engines particularly applicable to winding engines for colliery and
other purposes.
The object of this Invention is so to arrange the working parts of a
winding engine that they shall occupy the least possible space, a point
of vital importance in working minerals underground.
And in order that my Invention may be clearly understood and
readily carried into practice, I will proceed to describe the Drawing
hereunto annexed.
Figure 1 is a plan; Figure 2 a longitudinal section; and Figures. 3
and 4 are end views of a winding engine for mining purposes, arranged
and constructed in accordance with my Invention.
The cylinder A of the engine is placed immediately behind the
winding drums B, B, the guides O and connecting rod D being placed
between the drums. The centre line of the drum shaft E is raised
sufficiently high to allow the connecting rod to pass underneath and
clear the clutch F, the crank shaft G being placed in front of the
drums.
The framing of the engine may be of cast or wrought iron, and the
drums fast or loose with or without brakes, and may be worked either
with a frictional or ordinary clutch, and with or without reversing gear.
By this improved arrangement the length of steam or other motive-
power engines so constructed is or may be reduced from 20 to 40 per
cent, according to their size and power.
Having thus described the nature of my Invention, and the manner of

page_text: improved arrangement and combination of the parts of steam or other
motive-power engines, substantially as and for the purposes herein-before
described and shown in the Drawing hereunto annexed.
In witness whereof, I, the said Arthur James Stevens, have here-
unto set my hand and seal, this Nineteenth day of May, in the 5
year of our Lord One thousand eight hundred and seventy-three.