A NEW OR IMPROVED COMBINED VENTILATOR AND FLUSHING BOX AND LAMP HOLE FOR SEWERS
Year: 1874

page_text: LETTERS PATENT to William Batten, of Aston, near Birmingham,
in the County of Warwick, Surveyor, for the Invention of "A NEW
OR IMPROVED COMBINED VENTILATOR AND FLUSHING BOX AND LAMP HOLE FOR
SEWERS."
Sealed the 25th March 1875, and dated the 20th November 1874.
PROVISIONAL SPECIFICATION left by the said William Batten at the
Office of the Commissioners of Patents, with his Petition, on the
20th November 1874.
I, WILLIAM BATTEN, of Aston, near Birmingham, in the County of
Warwick, Surveyor, do hereby declare the nature of the said Inven-
tion for "A NEW OR IMPROVED COMBINED VENTILATOR AND FLUSHING BOX AND
LAMP HOLE FOR SEWERS," to be as follows:-
I make the flushing box which constitutes the body of the apparatus
of an oblong rectangular figure in plan and slightly pyramidal, the open
base being furnished with an external flange by which the apparatus is
supported on a foundation of brickwork at the top of the ventilating
shaft of the sewer. The top of the flushing box has an opening at its

page_text: middle, the said opening being provided with a cover as herein-after
explained, and on each side of the said middle opening are other smaller
openings in the fixed portions of the top of the flushing box, which said
smaller openings serve for the egress of air. Immediately under the
middle opening in the top of the flushing box are vertical divisions
which divide the lower part of the flushing box into three compartments,
having the sizes respectively of the middle open part and the side parts
of the top of the flushing box. The middle opening in the top of the
flushing box is provided with a cover which may be readily fixed down
and removed. A snug or projection is made on the lower edge of the
cover at one side, and a bolt sliding in a staple or case is situated at the
opposite edge.
In putting the cover in its place the snug described is engaged under
the flange constituting the seat of the cover, and when the cover is in
its place a rod inserted through a key hole in the middle of the cover
may be made to shoot the bolt described, and make it engage under the
seat at a point opposite to that at which the snug described engages.
By the action of the rod described the bolt may be withdrawn when
it is wished to remove the cover. The cover may be connected to the
flushing box by means of a chain. Any mud or debris passing through
the ventilating openings in the top of the flushing box falls into the two
outer compartments of the lower part of the flushing box and is deposited
in the said compartments.
By removal of the cover free access is afforded to the ventilating shaft
for the introduction of a lamp, or for flushing, or for other
any purpose.
Access is at the same time obtained to the compartments in the lower
part of the flushing box, by means of which access the contents of the
said compartments may be readily removed.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Batten in the Great Seal Patent Office 30
on the 12th May 1875.

page_text: "
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twentieth day of November, in the
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 me, the said William Batten, Her
special license that I, the said William Batten, my executors,
administrators, and assigns, or such others as I, the said William
Batten, 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 Inven-
tion for "A NEW OR IMPROVED COMBINED VENTILATOR AND FLUSHING BOX
AND LAMP HOLE FOR SEWERS," upon the condition (amongst others)
that I, the said William Batten, 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 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 Batten, 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 :-
I make the flushing box which constitutes the body of the apparatus
of an oblong rectangular figure in plan and slightly pyramidal, the open
base being provided with an external flange by which the apparatus is
supported on a foundation of brickwork at the top of the ventilating
shaft of the sewer. The top of the flushing box has an opening at its
herein-after
middle, the said opening being provided with a cover, as.
explained, and on each side of the said middle opening are other smaller
openings in the fixed portions of the top of the flushing box, which said
smaller openings serve for the egress or ingress of air. Immediately
under the middle opening in the top of the flushing box are vertical
divisions which divide the lower part of the flushing box into three
compartments, having the sizes respectively of the middle open part
and the side parts of the top of the flushing box. The middle opening

page_text: be
in the top of the flushing box is provided with a cover which may
readily fixed down and removed. A snug or projection is made on the
-lower edge of the cover at one side, and a bolt sliding in a staple or case
is situated at the opposite edge.
In putting the cover in its place the snug described is engaged under
the flange constituting the seat of the cover, and when the cover is in
its place a rod inserted through a keyhole in the middle of the cover
may be made to shoot the bolt described, and make it engage under the
seat at a point opposite to that at which the snug described engages.
By the action of the rod described the bolt may be withdrawn when
it is wished to remove the cover. The cover may be connected to the
flushing box by means of a chain. Any mud or debris passing through
the ventilating openings in the top of the flushing box falls into the two
outer compartments of the lower part of the flushing box and is deposited
in the said compartments.
By removal of the cover free access is afforded to the ventilating shaft
for the introduction of a lamp, or for flushing, or for any other purpose.
Access is at the same time obtained to the compartments in the lower
part of the flushing box, by means of which access the contents of the
said compartments may be readily removed. The contents of the said
compartments may however be removed without removal of the cover.
Having explained the nature of my Invention, I will proceed to
describe, with reference to the accompanying Drawing, the manner in
which the same may be performed.
Figure 1 represents in plan a combined ventilator, flushing box, and
lamp hole for sewers constructed according to my Invention; Figure 2
represents a vertical section of the same taken on the line A, B, of
Figure 1; Figure 3 represents a vertical section of the same taken on
the line E, F, of Figure 1; Figure 4 is a vertical section of the same
taken on the line C, D, of Figure 1; Figure 5 represents the same in
vertical section, together with the foundation of brickwork on which
it is supported, and its junction with the ventilating shaft of the sewer;
Figure 6 represents a plan of the foundation of brickwork and venti-
lating shaft. The section, Figure 5, is taken on the line A, B, of
Figure 6. The same letters of reference indicate the samo parts in
Figures 1 to 6.

page_text: .
a is the flushing box having at its top a middle opening b; c is the
cover of the said middle opening b; d, d, are smaller openings on each
side of the middle opening b. The said openings d, d, serve for the
egress or ingress of air from or to the ventilating shaft; e, e, are vertical
divisions which divide the lower part of the flushing box into three
compartments marked respectively a', a², a³. The central compartment a*
is in communication with the ventilating shaft m (see Figure 5), and
the outer compartments a¹, a³, are closed at bottom by the founda-
tion n, n.
The cover c of the middle opening 6 in the flushing box a is provided
with the following arrangements for permitting it to be readily fixed
down and removed at pleasure:-A snug or projection f is made on the
lower edge of the cover c at one side, and a sliding bolt g is situated on
the side opposite to that at which the snug f is situated. The bolt g.
slides in a staple or case h. In Figure 3 the cover c is represented fixed
in its place by the fore end of the bolt 9 taking or engaging under the
flange i, the opposite edge of the cover c being fixed down by the snug f
engaging under the flange k.
In order to remove the cover c a pointed or hooked rod is passed
down through the hole c² in the cover c, and the said rod, by acting
on the head g² of the bolt g, is made to withdraw the bolt g. The edge
of the cover c at which the bolt g. is situated can now be raised, and, as
the cover takes an inclined position the snug f is withdrawn from
under the flange k; and the cover may now be lifted from the
opening b; is a chain by which the cover c is connected to the
flushing box a.
.
.
In replacing the cover c the snug f is engaged under the flange k by
first lowering that side of the cover carrying the snug on to the flange k,
and then depressing that edge of the cover carrying the bolt g. The
bolt g is then shot by means of a rod inserted through the hole c. Any
mud or debris passing through the ventilating openings d, d, in the top.
of the flushing box a falls into the two outer compartments a¹, a², and
may be removed therefrom when necessary.
The contents of the compartments a¹, a³, may be removed without
lifting off the cover by means of a flat pointed hook or scoop passed

page_text: Instead of making the flushing box rectangular it may be made
hexagonal, as represented in Figures 7, 8, 9, 10, and 11, Figure 7
representing a plan; Figure 8, a vertical section taken on the line A, B,
of Figure 7; Figure 9, a vertical section taken on the line C, D,
Figure 7; Figure 10, a vertical section on the line E, F, Figure 7;
and Figure 11 is a half plan at G, G, Figure 8, showing the under side
of the flushing haz

page_text: which are constructed and combined substantially as and for the purposes
described and illustrated.
In witness whereof, I, the said William Batten, have hereunto set
my hand and seal, this Eighth day of May, in the year of our
Lord One thousand eight hundred and seventy-five.
Witness,
RICHARD SKERRETT,
Clerk to George Shaw,
Birmingham.
WILLIAM BATTEN. (L.S.)