IMPROVEMENTS IN LIQUID METERS
Year: 1874

page_text: LETTERS PATENT to George Alonzo Everett, of the City, County, and
State of New York, in the United States of America, but at present
of 23, Southampton Buildings, in the County of Middlesex, for the
Invention of "IMPROVEMENTS IN LIQUID METERS."-A communication
from abroad by Franklin Wisner Brooks, of the City, County,
and State of New York, in the United States of America.
Sealed the 2nd April 1874, and dated the 7th February 1874.
PROVISIONAL SPECIFICATION left by the said George Alonzo Everett
at the Office of the Commissioners of Patents, with his Petition,
on the 7th February 1874.
I, GEORGE ALONZO EVERETT, of the City, County, and State of New
York, in the United States of America, but at present of 23, South-
ampton Buildings, in the County of Middlesex, do hereby declare the
nature of the said Invention for "IMPROVEMENTS IN LIQUID METERS,"
a communication to me from abroad by Franklin Wisner Brooks, of tho
City, County, and State of New York, in the United States of America,
to be as follows:
-

page_text: small cost, whilst but little resistance is offered to the passage of liquid
therethrough. For this purpose a case or chamber is employed having
suitable inlet and outlet orifices which are capable of being readily con-
nected by union joint or otherwise with the service and supply pipes. In
this case or chamber is mounted a frame which is preferably formed of
a central portion or boss having four ribs connected therewith, standing
at or about right angles to each other. At one end these ribs are con-
nected to a circular plate accurately fitting the interior of the case or
chamber, and the four ribs are also formed to fit the interior of such case
or chamber so as to support the frame firmly in position. On the cir-
cular plate is mounted a suitable counting apparatus to which motion is
given from the measuring apparatus by means of a worm acting upon
suitable gearing carried by the cross frame and giving motion to the first

page_text: and the holes in the circular plate are covered with very fine wire gauze
or other suitable material.
The measuring screw is formed with a solid central portion, around
which are arranged a number of blades or threads, and the boss of the
cross frame is spread out at the end near the measuring screw, so that it
shall direct the water towards the blades or threads and prevent it
impinging against the end of the solid portion of the measuring screw.
A grating is applied to the inlet orifice to prevent any solid matter
passing into the meter large enough to interfere with its correct action.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said George Alonzo Everett in the Great Seal Patent
Office on the 7th August 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
ALONZO EVERETT, of the City, County, and State of New York, in the
United States of America, but at present of 23, Southampton Buildings,
in the County of Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Seventh day of Febauary, in the
year of our Lord One thousand eight hundred and seventy-four, in the
thirty-seventh year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said George Alonzo Everett, Her
special license that I, the said George Alonzo Everett, my executors,
administrators, and assigns, or such others as I, the said George Alonzo
Everett, 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 LIQUID METERS," a communication to me from abroad
by Franklin Wisner Brooks, of the City, County, and State of New York,
in the United States of America, upon the condition (amongst others)
that I, the said George Alonzo Everett, my executors or administrators,
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

page_text: 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 George Alonzo Everett, 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 :-
The Invention has for its object improvements in liquid meters
whereby a simple and efficient meter is produced at a comparatively
small cost, whilst but little resistance is offered to the passage of liquid
therethrough, and the Invention relates to that class of liquid meters in
which a measuring screw is employed. For this purpose a case or
chamber is employed having suitable inlet and outlet orifices which are
capable of being readily connected by union joint or otherwise with the
service and supply pipes. In this case or chamber is mounted a frame
which is preferably formed of a central portion or boss having four
ribs or wings connected therewith standing at or about right angles to
each other. At one end of these ribs or wings are connected to a cir-
cular plate accurately fitting the interior of the case or chamber, and
the four ribs are also formed to fit the interior of such case or chamber
so as to support the frame firmly in position. On the circular plate is
mounted a suitable counting apparatus to which motion is given from
the measuring apparatus by means of a worm acting upon suitable
gearing carried by the cross frame and giving motion to the first
counting spindle.
The measuring apparatus consists of a screw formed by preference of
vulcanite or hard rubber, and mounted on a shaft or spindle having a
worm fixed thereon, which worm actuates the counting mechanism as
before described.
The measuring screw is made to fit the interior of the case or chamber
as closely as possible without touching it. One end of the spindle of
the measuring screw is received into a bearing formed for it in the boss
or centre of the cross frame, and the other end of the measuring screw
is by preference formed with a hole to receive a spindle which is capable
of adjustment by being screwed through a central portion or boss
carried by an open framework or support fixed at or near the outlet end
of the interior of the case or chamber, a lock nut being employed to
retain such spindle in the desired position when once adjusted,

page_text: Some of the ribs of the cross frame carrying the counting apparatus
are perforated to admit a free flow of water therethrough so as to
equalize the distribution thereof. The counting apparatus and dial are
enclosed by a cover screwed on to the case or chamber, and the liquid
has free access thereto, thereby obviating the necessity for the use of a
stuffing box for the first counting spindle to pass through, and in order
that the water may be enabled to freely pass in amongst the counting
appartus and yet that no dirt or grit shall pass with it, the circular plate of
the cross frame is perforated with a number of holes corresponding with
other holes in the back plate of the counting apparatus, and the holes
in the circular plate are covered with very fine wire gauze or other
suitable material.
The measuring screw is formed with a solid central portion around
which are arranged a number of blades or threads, and the boss of the
cross frame is spread out at the end near the measuring screw so that it
shall direct the water towards the blades or threads and prevent it
impinging against the end of the solid portion of the measuring screw.
A grating is applied to the inlet orifice to prevent any solid matter
passing into the meter large enough to interfere with its correct action.
And in order that the said Invention may be more clearly understood
and readily carried into effect, I will proceed aided by the accompanying
Drawings more fully to describe the same.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is an external view; Figure 2 is a longitudinal section;
Figure 3 is a cross section on the line 1, 1, of Figure 2; Figure 4 is a
separate view of the frame on which the counting apparatus is mounted ;
Figure 5 is a cross section on the line 2, 2, of Figure 2; Figures 6
and 7 are side and end views of measuring screw; Figure 8 is a face
view of the counting dial; and Figure 9 is an end view of the inlet orifice
of a meter constructed according to the present Invention.
a is the case or chamber into which the liquid to be measured is
admitted by the pipe b, and from which it passes away measured by the
pipe c. In passing into the meter the liquid passes through a grating d
in order that any solid matter may be prevented passing into the meter
large enough to interfere with its correct action, it thence passes through
a passage or opening a³. In the case or chamber a is mounted a separate
gearing frame formed of a central portion or boss e having four ribs e¹
connected therewith, standing at or about right angles to each other. At

page_text: one end these ribs e¹ are connected to a circular plate e accurately
fitting the interior of the case or chamber a, and the four ribs e¹ are also
formed to fit the interior of such case or chamber a so as to support the
frame e, e¹, es, firmly in position. On the circular plate e³ is mounted a
counting apparatus of which fand f¹ are the top and bottom plates which
are connected together by pillars fs, and thus form a separate frame.
The measuring apparatus consists of a vulcanite or hard rubber screw g
fixed on a shaft or spindle g³, having a worm g³ fixed thereon, which
worm g³ gives motion to a worm wheel h¹ fixed on the shaft or axis h,
on which is also fixed a worm h². This worm h³ takes into a worm wheel 1
h³ mounted on the first counting spindle i, and this spindle i passes
through openings in the top plate e³ and back plate f¹ of the gearing
and dial or counting frames, and to seal this joint against the free flow
of water therethrough a sleeve or tube f³ projects from the back plate f¹
into the opening in the plate e³ and fits closely therein; the first 1
counting spindle i fitting closely within such sleeve or tube f³; by these
means the water is caused to work its way but slowly into the compart-
ment for the dial or counting apparatus, which is thereby kept free from
dirt and grit.
I would here remark that I have not thought it necessary to show the
details of the counting apparatus, as such will be readily understood by
a competent mechanic.
The measuring screw 9 is as will be seen made to fit the interior of
the case or chamber a as closely as possible without touching it, and it
is mounted in the following manner:-One end of the measuring
screw 9 is supported by the spindle g¹ which is received into a hard
rubber bearing et formed for it in the boss or centre e of the frame e,
e¹, e³, and the other end of the measuring screw 9 is by preference formed
with a hole to receive a spindle ; which is capable of adjustment by
being screwed through a central portion or boss k³ carried by an open
framework or support / fixed at or near the outlet end of the case or
chamber a, a lock nut k³ being employed to retain such spindle in the
desired position when once adjusted.
The measuring screw 9 is formed with a central portion or boss g*
conical at one end, around which boss are arranged a number of blades
or threads I, and the boss e of the cross frame is spread out at the end es
so as to cover or shield the conical part of the boss g* and to direct the

page_text: water towards the blades or threads g and prevent it impinging against
the end of the boss or central portion g*.
Two of the ribs or wings e¹ of the cross frame e, e¹, e³, are perforated,
as shown, in order to admit a free flow of water therethrough and
thereby equalize the distribution of the water or liquid to be measured
around the measuring screw 9, but the other ribs or wings e¹ are left
solid and are enclosed as shewn at their lower part so as to form an
enclosed chamber for the gearing, and thereby prevent the liquid
entering the meter from exerting its direct action on the gearing.
The counting apparatus and dial are enclosed by a cover 7 provided
with a glass disc l' which cover is screwed on to the case or chamber a,
and the liquid to be measured has free access thereto, thereby obviating
the necessity for the use of a stuffing box for the first counting spindle i
to pass through.
And in order that the water or liquid to be measured may be enabled
to pass freely in amongst the counting apparatus and yet that no dirt or
grit shall pass with it the circular plate e' is perforated with a number
of holes, as shown at e', corresponding with other holes in the back
plate f¹ of the counting apparatus, and the holes in the circular plate e²
are covered with very fine wire gauze or other suitable material which
serves as a filter for the water to pass through before reaching the
counting apparatus.
The cover and the union joints m, n, are provided with suitable
packing in order to obtain water-tight joints, whilst the packing of the
cover serves to retain the counting apparatus and cross frame e, e¹, e³,
in proper position; and the open framework or support k is kept in
position by the union joint m. Thus should it be desired the counting
apparatus and frame f, f¹, f, separate gearing frame e, e¹, e², and
vulcanite or hard rubber screw 9 and frame k can be readily introduced
into and removed from the case or frame a.
Having thus described the nature of the said Invention, and the
mode in which the same is carried into effect, I would have it under-
stood that what I claim is,-
First. The combination in a liquid meter of a separate gearing frame
e, e', e², separate dial or counting frame f, f¹, f2, a vulcanite or hard
rubber screw g with a conical boss 9* and the shield e³ enclosed in a case

page_text: or chamber a having inlet and outlet openings all arranged and working
together by means of enclosed gearing, in manner substantially as herein
shown and described.
Secondly. The separate frame e, e¹, e², having the enclosed gearing
compartment, upper bearing of hard rubber e for the axis g¹ of the 5
screw, and the deflecting shield e³, in manner and for the purpose sub-
stantially as herein shown and described.
Thirdly. The separate gearing frame e, e¹, e³, as a scat and support for
the frame ff, f, of the dial or counting apparatus when the same are
arranged and combined in manner substantially as herein shown and 1
described.
Fourthly. The employment of a vulcanite or hard rubber screw for
liquid meters, constructed in manner substantially as herein shown and
described.
Fifthly. The combination of the deflecting shield es of the frame e,
1
e¹, e, with the conical boss 9* of the screw 9, in manner and for the
purpose substantially as herein shown and described.
Sixthly. The filter applied to the holes et in the plates e², f³, in
manner and for the purpose substantially as herein shown and described.
In witness whereof, I, the said George Alonzo Everett, havo 2
hereunto set my hand and seal, this Sixth day of August in
the year of our Lord One thousand eight hundred and seventy-
four.