Year: 1888

page_text: I, ALEXANDER MCGLASHAN of Albany Works, Stirling Road, Glasgow, in the
County of Lanark, North Britain, Engineer do hereby declare the nature of this
invention to be as follows:-
This Invention, which relates to an improved valve to be used in engines for
raising and forcing fluids, is specially adapted for that class of such engines whereby air
is forced into casks containing beer and other liquors and is a further development of
the valve described in the Provisional Specification of the said Alexander McGlashan
No. 7955 and dated 31st May 1888.
The object of the improved valve is, whilst allowing air to pass freely into the cask
or other vessel at all times, also to cause the valve through which the air passes to
instantaneously close in the event of water or other liquid coming into contact with
the said valve by rising to an undue height in the air forcing engine.
The foregoing object is effected by forming the valve with a float on its upper side,
the said float being contained within a close vessel above the valve sent. In the event
of water rising in the engine so as to reach the float, the float is caused to rise and, in
doing so lifts the valve at its underside close against its seat, thereby preventing the
passage of any more water through the valve and at the same time making it
impossible for the water under pressure to act upon the float to cause its collapse.
Dated this 11th day of September 1888.
ST. JOHN V. DAY,
115, St. Vincent Street, Glasgow,
Petitioner's Agent.

page_text: I, ALEXANDER MCGLASHAN of Albany Works, Stirling Road, Glasgow, in the
County of Lanark, North Britain, Engineer do hereby declare the nature of this
invention and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:-
My Invention, which relates to an improved valve to be used in engines for raising
and forcing fluids, is especially adapted for that class of such engines whereby air or
gas is forced into casks containing beer and other liquors for the purpose of raising or
forcing the liquors from or out of the casks to the taps or cocks by which the liquor
is taken off.
The object of the present valve is, whilst allowing air to pass freely into the cask or
other vessel at all times, also to cause the said valve to instantaneously close in the
event of water or other liquid coming into contact with the said valve by rising to an
undue height in the air or gas forcing engine.
The foregoing object is effected by forming the valve with a float, the said float
being contained within a close vessel connected with the valve seat. In the event of
water rising in the engine so as to reach the float, the float is caused to rise and in
doing so lifts the valve close against its seat, thereby preventing the passage of any.
more water through the valve.
In order that my Invention may be properly understood and readily carried into
effect, I have hereunto appended an explanatory sheet of drawings in the several
Figures of which corresponding parts are indicated by similar letters of reference, that
is to say Figure 1, is a vertical section of the casing containing the float and valverin
the position which the relative parts occupy when air or gas is passing up through
it into the cask or other vessel to which air is to be supplied under pressure.
Figure 2, is another transverse section of the casing in which the float also is shown
upraised by water having got into the casing and thereby raising the float and valve.
Figure 3, is a plan of the valve casing.
In these Figures the bottom and sides of the valve casing are marked A, and the
top thereof consists of a cover B, screwed into the top of the casing as more particularly
shewn at Figures 1 and 2. At the centre of the lower part of the casing A, there is

page_text: the screwed projecting piece C, by means of which the valve casing is attached to the
air compressing engine, which may be an engine or apparatus like that set forth in my
previous specification No. 12102 A.D. 1887 or it may be an analogous apparatus.
The bottom part of the projecting piece C, constitutes the seat against which the valve D,
rests when the said valve is lifted up against the seat by water rising from the engine
and lifting the float E, as shewn at Figure 2. When air only passes through the
valve casing A, into the cask or other receptacle out of or from which heer or other
liquid is to be raised or forced, the valve D, and float E, occupy the position shewn at
Figure 1. The advantage of this particular arrangement over that hereinafter
described with reference to Figures 4, 5 and 6 of the annexed-drawings, of the valve !)
as shewn in the drawings is that the pressure on the float is never greater than the air
and thus preventing the collapse of the float which might happen in the arrangement
shewn in Figures 4, 5 and 6, by if the great pressure of the water coming came in
direct contact with the float.
A modification of my improved valve for the purposes-hereinbefore described is
shewn on sheet 2 of the annexed drawings of which Figure 1, is a vertical-section of
the-easing containing the float-and-valve in the position which-the-relative-parts
occupy when air only is passing-up through it into the eask or other vessel to which
the apparatus is connected.
Figure 5, is another transverse section of the easing in which the-float is shewn-in
vertical section and upraised by water having passed into the cusing thereby lifting
the float and valve until the valve has closed against its sent.
Figure 6, is a plan of the valve casing.
In these Figures the bottom and sides of the valve easing are marked A, and the top
thereof is constituted by a cover B, screwed into the top of the easing as more
particularly shown in Figures 4 and 5. In the lower part of the casing is n bridge
piece a through which holes b, are-formed and in the centre of the bridge there-is
fixed a vertical tube or solid body C. which nets as a central guide for the flout D, to
rise and fall upon. The serew E, at the lower part of the easing is for fixing this
apparatus to the air exit of the nir-compressing apparatus.
As the air rises from the air compressing or foreing-apparatus-up through the
passage E. it passes up through the openings b, in the bridge a, and thence underneath
the bottom of the flent, up the sides thereof and to the holes C, in the upper tubular
part F, of the float. The upper-projecting purt G, of the cover B, is formed with a
serew-thread in it for connecting it to the pipe-leading to the cask or other vessel into
which compressed air has to be driven for raising or forcing the beer or other liquid
up from the cellars-or other place where-beer-may be stored-to-the-tups-or-cocks
through which it is drawn off as required. In the pipe-or-passage between the
part-6,-and-the-ensk or equivalent vessel-there-may be placed-n-check valve to
prevent-the-return from the cask of the air-which-has-been-forced-past the valve
thereinto.
So long as air only nets upon the font D, it passes around the font--and
valve into the cask in the manner hereinbefore described but in the event of the
water used in the compressing engine or forcing apparatus-rising-up-therein-to
such an extent as to come in contact with the flont D, the font D, is immediately
lifted by the water and the India rubber ring H, enrried upon the tubular or solid
guide part F is by the rising of the float compressed up against the valve seat I;
on cover B, as shewn at Figure 2, and in this manner the presence of water by
Fuising the float D, and the valve H, so as to close communication with the
openings C in the upper tubular-part F, prevents the passage of water into the
eusk-or other vessel to which the apparatus is attached. It therefore follows that
the greater the pressure of water present by just so much more effectively-is-its
passage beyond the float D prevented.
It is to be understood that the float D, may be of any suitable construction or
inaterial but a float such as I have shewn on the annexed drawings, I have found
to answer well, consisting as it does of a hollow circular metallic chamber soldered
at all its jointing edges so as to render it air and watertight.

page_text: Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
The arrangement and construction of apparatus for allowing free passage of
compressed air or gases at all times from an air or gas compressing engine to the
cask or other vessel into which the compressed air or gas is forced and wherein when
water rises the passage of such water and compressed air are prevented by the said
water raising a float and closing a valve, necording to either modification, and wherein
the collapse of the float is prevented, substantially as hereinbefore described as and
shewn upon in Figures 1, 2 and 3 of the annexed sheets of drawings.
Dated this 5th day of Fah 1000
ST. JOHN V. DAY,
115, St. Vincent Street, Glasgow,
Applicant's Agent.

page_text: Date of Application, 12th Sept., 1888
Complete Specification Left, 11th Feb., 1889
Complete Specification Accepted, 16th Mar., 1889
An Improved Valve for Engines Used for Raising and Forcing Fluids.
I, ALEXANDER MCGLASHAN of Albany Works, Stirling Road, Glasgow, in the
County of Lanark, North Britain, Engineer do hereby declare the nature of this
invention to be as follows:-
This Invention, which relates to an improved valve to be used in engines for
raising and forcing fluids, is specially adapted for that class of such engines whereby air
is forced into casks containing beer and other liquors and is a further development of
the valve described in the Provisional Specification of the said Alexander McGlashan
No. 7955 and dated 31st May 1888.
The object of the improved valve is, whilst allowing air to pass freely into the cask
or other vessel at all times, also to cause the valve through which the air passes to
instantaneously close in the event of water or other liquid coming into contact with
the said valve by rising to an undue height in the air forcing engine.
The foregoing object is effected by forming the valve with a float on its upper side,
the said float being contained within a close vessel above the valve seat. In the event
of water rising in the engine so as to reach the float, the float is caused to rise and in
doing so lifts the valve at its underside close against its seat, thereby preventing the
passage of any more water through the valve and at the same time making it
impossible for the water under pressure to act upon the float to cause its collapse.
Dated this 11th day of September 1888
ST. JOHN V. DAY,
115, St. Vincent Street, Glasgow,
Petitioner's Agent.

page_text: An Improved Valve for Engines Used for Raising and Forcing Fluids.
I, ALEXANDER MCGLASHAN of Albany Works, Stirling Road, Glasgow, in the
County of Lanark, North Britain, Engineer do hereby declare the nature of this
invention and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement :-
My Invention, which relates to an improved valve to be used in engines for raising
and forcing fluids, is especially adapted for that class of such engines whereby air or
gas is forced into casks containing beer and other liquors for the purpose of raising or
forcing the liquors from or out of the casks to the taps or cocks by which the liquor
is taken off.
The object of the present valve is, whilst allowing air to pass freely into the cask or
other vessel at all times, also to cause the said valve to instantaneously close in the
event of water or other liquid coming into contact with the said valve by rising to an
undue height in the air or gas forcing engine.
The foregoing object is effected by forming the valve with a float, the said float
being contained within a close vessel connected with the valve seat. In the event of
water rising in the engine so as to reach the float, the float is caused to rise and in
doing so lifts the valve close against its seat, thereby preventing the passage of any
more water through the valve.
In order that my Invention may be properly understood and readily carried into
effect, I have hereunto appended an explanatory sheet of drawings in the several
Figures of which corresponding parts are indicated by similar letters of reference, that
is to say Figure 1, is a vertical section of the casing containing the float and valve in
the position which the relative parts occupy when air or gas passing up through
it into the cask or other vessel to which air is to be supplied under pressure.
Figure 2, is another transverse section of the casing in which the float is shewn
upraised by water having got into the casing and thereby raising the float and valve.
Figure 3, is a plan of the valve casing.
In these Figures the bottom and sides of the valve casing are marked A, and the
top thereof consists of a cover B, screwed into the top of the casing as more particularly
shewn at Figures 1 and 2. At the centre of the lower part of the casing A, there is

page_text: the screwed projecting piece C, by means of which the valve casing is attached to the
air compressing engine, which may be an engine or apparatus like that set forth in my
previous specification No. 12102 A. D. 1887 or it may be an analogous apparatus.
The bottom part of the projecting piece C, constitutes the seat against which the valve D,
rests when the said valve is lifted up against the seat by water rising from the engine
and lifting the float E, as shewn at Figure 2. When air only passes through the
valve casing A, into the cask or other receptacle out of or from which beer or other
liquid is to be raised or forced, the valve D, and float E, occupy the position shewn at
Figure 1. The advantage of this arrangement over that hereinafter described with
reference to Figures 4, 5 and 6 of the annexed drawings, is that the pressure on the
float is never greater than the air and thus preventing the collapse of the float which
might happen in the arrangement shewn in Figures 4, 5 and 6, by the great pressure
of the water coming in direct contact with the float.
A modification of my improved valve for the purposes hereinbefore described is
shewn on sheet 2, of the annexed drawings of which Figure 4, is a vertical section of
the casing containing the float and valve in the position which the. relative parts
occupy when air only is passing up through it into the cask or other vessel to which
the apparatus is connected.
Figure 5, is another transverse section of the casing in which the float is shewn in
vertical section and upraised by water having passed into the casing thereby lifting
the float and valve until the valve has closed against its seat.
Figure 6, is a plan of the valve casing.
In these Figures the bottom and sides of the valve casing are marked A, and the top
thereof is constituted by a cover B, screwed into the top of the casing as more
particularly shewn in Figures 4 and 5. In the lower part of the casing is a bridge
piece a, through which holes b, are formed and in the centre of the bridge there is
fixed a vertical tube or solid body C, which acts as a central guide for the float D, to
rise and fall upon. The screw E, at the lower part of the casing is for fixing this
apparatus to the air exit of the air compressing apparatus.
As the air rises from the air compressing or forcing apparatus up through the
passage E, it passes up through the openings b, in the bridge a, and thence underneath
the bottom of the float, up the sides thereof and to the holes C, in the upper tubular
part F, of the float. The upper projecting part G, of the cover B, is formed with a
Screw-thread in it for connecting it to the pipe leading to the cask or other vessel into
which compressed air has to be driven for raising or forcing the beer or other liquid
up from the cellars or other place where beer inay be stored to the taps or cocks
through which it is drawn off as required. In the pipe or passage between the
part &, and the cask or equivalent vessel there may be placed a check valve to
prevent the return from the cask of the air which has been forced past the valve
thereinto.
So long as air only acts upon the float D, it passes around the float and
valve into the cask in the manner herein before described but in the event of the
water used in the compressing engine or forcing apparatus rising up therein to
such an extent as to come in contact with the float D, the float D, is immediately
lifted by the water and the India-rubber ring H, carried upon the tubular or solid
guide part F, is by the rising of the float compressed up against the valve seat 1,
on cover B, as shewn at Figure 2, and in this manner the presence of water by
raising the float D, and the valve H, so as to close cominunication with the
openings C, in the upper tubular part F, prevents the passage of water into the
cask or other vessel to which the apparatus is attached. It therefore follows that
the greater the pressure of water present by just so much more effectively is its
passage beyond the float D prevented.
It is to be understood that the float D, may be of any suitable construction or
material but a float such as I have shewn on the annexed drawings, I have found
to answer well, consisting as it does of a hollow circular metallic chamber soldered
at all its jointing edges so as to render it air and watertight.

page_text: Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
The apparatus for allowing free passage of compressed air or gases at all times
from an air or gas compressing engine to the cask or other vessel into which
the compressed air or gas is forced and wherein when water rises the passage of
such water and compressd air are prevented by the said water raising a float and
closing a valve according to either modification, substantially as hereinbefore
described as shewn upon the annexed sheets of drawings.
Dated this 5th ..
1000
ST. JOHN V. DAY,
115, St. Vincent Street, Glasgow,
Applicant's Agent.