IMPROVEMENTS IN COMBINED ENGINES AND BOILERS FOR WINDING, HAULING, PUMPING, AIR COMPRESSING, AMWER PURPOSES.
Year: 1874

page_text: LETTERS PATENT to David Greig, of the Steam Plough Works, Leeds,
in the County of York, Engineer, and William Daniel, of the same
Place, Engineer, for the Invention of "IMPROVEMENTS IN COMBINED
ENGINES AND BOILERS FOR WINDING, HAULING, PUMPING, AIR COMPRESSING,
AMWER PURPOSES.
"
Sealed the 16th March 1875, and dated the 14th October 1874.
PROVISIONAL SPECIFICATION left by the said David Greig and
William Daniel at the Office of the Commissioners of Patents,
with their Petition, on the 14th October 1874.
We, DAVID GREIG, of the Steam Plough Works, Leeds, in the County
of York, Engineer, and WILLIAM DANIEL, of the same Place, Engineer,
do hereby declare the nature of the said Invention for “IMPROVEMENTS
IN COMBINED ENGINES AND BOILERS FOR WINDING, HAULIN PUMPING, AIR COM-
PRESSING, AND OTHER PURPOSES," to be as follows:-
These improvements consist partly in so constructing and combining
engines and multitubular boilers that the part of the boiler most liable

page_text: to wear or failure can be renewed without disturbing the other part of the
boiler or the engine, or any machinery driven by the engine. To
accomplish this the engine is placed under the boiler barrel and the
barrel is carried at each end on brackets or pillars secured to the engine
bed plate. The fire-box shell is bolted to the barrel, and can be removed
without in any way disturbing the boiler barrel and engine. To facilitate
the drawing of the tubes they have ferrules welded or brazed on their
ends and turned slightly taper.
For compressing air the air pumps are mounted either vertically or
horizontally on the same bed as the engine, and are worked from a
countershaft driven by spur gearing from the engine shaft. One or two
air pumps can be used. In the case of two being employed they are
placed one on either side of the bed plate, and the cranks on the counter-
shaft for working them are at right angles to one another. By this
arrangement a semi-portable engine is adapted to work an air compresser
in such manner that high-pressure steam can be used, the steam pistons
can be run at a high speed, and the steam can be used expansively with
a moderate speed for the air pistons.
When the engine is to be used for winding or hauling the engine shaft
similarly gives motion by spur gear to the winding or hauling drum. In
both the winding and compressing engine the arrangement can be altered,
the engine being placed on the top of the boiler barrel, but with the
fire-box and shell still constructed so that they can be removed without
disturbing the engine.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said David Greig and William Daniel in the Great
Seal Patent Office on the 13th April 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, DAVID
GREIG, of the Steam Plough Works, Leeds, in the County of York,
Engineer, and WILLIAM DANIEL, of the same Place, Engineer, send
greeting.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said David Greig and William Daniel in the Great
Seal Patent Office on the 13th April 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, DAVID
GREIG, of the Steam Plough Works, Leeds, in the County of York,
Engineer, and WILLIAM DANIEL, of the same Place, Engineer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fourteenth day of October, in the

page_text: year of our Lord One thousand eight hundred and seventy-four, in
the thirty-eighth year of Her reign, did, for Herself, Her heirs and
successors, give and grant unto us, the said David Greig and William
Daniel, Her special license that we, the said David Greig and William
Daniel, our executors, administrators, and assigns, or such others as we,.
the said David Greig and William Daniel, our 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 COMBINED
ENGINES AND BOILERS FOR WINDING, HAULING, PUMPING, AIR COMPRESSING, AND
OTHER PURPOSES," upon the condition (amongst others) that we, the
said David Greig and William Daniel, our executors or administrators,
by an instrument in writing under our or their hands and seals, or
under the hand and seal of one of us or them, 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 six calendar months next and
immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said William Daniel, on behalf of
myself and the said David Greig, 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 :-
These improvements consist partly in so constructing and combining
engines and multitubular boilers that the part of the boiler most liable
to wear or failure can be renewed without disturbing the other part of
the boiler or the engine, or any machinery driven by the engine. To
accomplish this the engine is placed under the boiler barrel and the
barrel is carried at each end on brackets or pillars secured to the engine
bed plate. The fire-box shell is bolted to the barrel, and can be removed
without in any way disturbing the boiler barrel and engine. To facilitate
the drawing of the tubes they have ferrules welded or brazed on their
ends and turned slightly taper.

page_text: countershaft driven by spur gearing from the engine shaft.
By this
One or two
air pumps can be used. In the case of two being employed they are
placed one on either side of the bed plate, and the cranks on the counter-
shaft for working them are at right angles to one another.
arrangement a semi-portable engine is adapted to work an air compresser
in such manner that high-pressure steam can be used, the steam pistons
can be run at a high speed, and the steam can be used expansively
with a moderate speed for the air pistons.
When the engine is to be used for winding or hauling the engine shaft
similarly gives motion by spur gear to the winding or hauling drum. In
both the winding and compressing engine the arrangement can be altered,
the engine being placed on the top of the boiler barrel, but with the
fire-box and shell still constructed so that they can be removed without
disturbing the engine.
In order that our Invention may be fully understood and readily carried
into effect we have shewn in the Drawings hereunto annexed an example
of a winding engine and also an air compresser constructed according to
our Invention.
Figure 1 shews a side view partly in section and Figure 2 an end view
of the winding engine.
a is the barrel of the boiler carried at each end by brackets or
pillars b, b, secured to the bed plate c; on this bed plate is also mounted
the engine d. e is the fire-box shell secured by bolts and nuts to the
end of the barrel a, as shewn at f, Figure 1. The outer end of the fire-
box shell may rest on adjustable supports as at g. As before stated the
boiler tubes have ferrules welded or brazed on to their ends and turned
slightly taper to facilitate their withdrawal, or other arrangements may
be adopted to allow of the tubes being readily withdrawn. By these
means when the tubes have been withdrawn and the screw bolts ƒ have
been removed the fire-box may be taken away without interfering with
the boiler barrel or the engine. To give motion to the winding barrel
the crank shaft of the engine has upon it a pinion h, gearing with a
toothed wheel k upon the axis of the barrel, as shewn. Combined
engines and boilers arranged in the manner above described may also as
before stated be employed for pumping and for other purposes.
At Figures 3, 4, and 5 we have shewn the engine and boiler combined
with air compressors. Figure 3 is a side view; Figure 4, a plan partly

page_text: in section; and Figure 5, an end view partly in section. The crank
shaft of the engine has upon it pinions a, a, gearing with toothed
wheels b, b, on the ends of a shaft c. The toothed wheels carry crank
pins d, which by connecting rods give motion to the pistons of the air-
compressing cylinders e, e, and the air as it is compressed in the cylinders
is delivered into the cylindrical compressed air reservoir g, which is
placed between the air-compressing cylinders, as shewn.
It will be seen that the steam pistons are required to make several
strokes for each stroke of the pistons of the air-compressing cylinders,
and that consequently high-pressure steam can be used expansively and
the steam pistons run at a high speed with a moderate speed for the air
pistons.
The general arrangement of the apparatus is sufficiently indicated by
the Drawings, so that it is unnecessary to give any further description
of it.
Having thus described the nature of our Invention and the manner of
performing the same, we would have it understood that we claim,-
First. The arrangement of engine and boiler substantially as herein-
before described, whereby the part of the boiler most liable to failure can
be renewed readily without having to remove or disarrange the engine
or the machinery driven by the engine.
Second. The combined arrangement of semi-portable engine and air
compressor substantially as herein-before described, whereby high-
pressure steam worked expansively can be combined with a slow piston
speed in the air compressor.
In witness whereof, I, the said William Daniel, have hereunto
set
my hand and seal, this Twelfth day of April, in the year of
our Lord One thousand eight hundred and seventy-five.