An Improved Block for Constructing and Lining Sewers, Conduits, Wells, Arches, and the like.
Year: 1899

page_text: Date of Application, 2nd Oct.. 1899
Complete Specification Left, 27th June, 1900-Accepted, 4th Aug.. 1900
TMWVIDIONAL DIECIFICATION.
An Improved Block for Constructing and Lining Sewers, Conduits,
Wells, Arches, and the like.
We, DAVID THOMAS CLEGG, of 44, Tonman Street, Manchester, in the County
of Lancaster, Traveller, and HENRY NORMAN BROOKE, of Fieldhouse Works,
Huddersfield, in the County of York, Brick Manufacturer, do hereby declare the
nature of this invention to be as follows:-
-
Our invention relates to an improved block for constructing and lining sewers,
conduits, wells, arches and the like, our objects being to form a strong and water-
tight joint between the blocks and to economise time in making sewers, conduits,
wells, arches and the like.
We prefer to make our improved blocks hollow, of vitrefied or other stone
ware, or other suitable material, and in place of using, say, two or three courses
of bricks to form a sewer or conduit &c. we propose to employ a single course
of blocks occupying less space and consequently requiring a narrower trench.
We form each block with a spigot at one end which when the blocks are laid
in position, fits into the hollow part of the adjoining block and so forms a key
and secures the proper linage of the blocks, and on the side of each block we
form a dovetail groove or grooves lengthwise of the blocks and a similar dovetail
groove or grooves may be made on the outside of each block.
If desired, the blocks may be formed solid, a spigot and recess being formed
at opposite ends of each block so that a continuous key would be formed along
each course of blocks.
In constructing a sewer, conduit, well arch or the like, the blocks would be
laid and locked by the spigot joints and have cement or other suitable material
placed in the joints: the exposed side of each block would be then covered with
cement or other suitable material so as to fill the dovetail groove ready to receive
a block which has had its side also covered with the cement so that when laid
in position the cement in the grooves would adhere together and form a lock or
key in addition to the joint made between the plain surfaces of each side.
Where the sewer or the like is to be covered with cement outside, we employ
blocks with dovetail grooves on the outside so that the cement can be forced into
these grooves to key the blocks to the outside cement.
Dated this 30th day of September 1899.
H. B. BARLOW & GILLETT,
Agents for Applicants.
COMPLETE SPECIFICATION.
An Improved Block for Constructing and Lining Sewers, Conduits,
Wells, Arches, and the like.
We. DAVID THOMAS CLEGG, of 44, Tonman Street, Manchester, in the County
of Lancaster, Traveller, and HENRY NORMAN BROOKE, of Fieldhouse Works,
Huddersfield, in the County of York, Brick Manufacturer, do hereby declare the
[Price 8d.l

page_text: 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:-
Our invention relates to an improved block for constructing and lining sewers,
conduits, wells, arches and the like, our objects being to form a strong and water-
tight joint between the blocks and to economise time in making sewers, conduits,
wells, arches and the like.
We prefer to make our improved blocks hollow, of vitrefied or other stone
ware, or other suitable material, and in place of using, say, two or three courses
of bricks to form a sewer or conduit &c. we propose to employ a single course
of blocks occupying less space and consequently requiring a narrower trench.
We form each block with a spigot at one end which when the blocks are laid
in position, fits into the hollow part of the adjoining block and so forms a key
and secures the proper linage of the blocks and on the side of each block we
form a dovetail groove or grooves lengthwise of the blocks and a similar dovetail
groove or grooves may be made on the outside of each block.
In the accompanying drawings―
Fig. 1 is an end view of a sewer or culvert constructed of blocks made accord-
ing to our invention. Fig. 2 is a vertical section, taken through the centre line
of Fig. 1. Fig. 3 is a side elevation and end view of a detached block and Fig. 4
is a sectional view, on an enlarged scale, of a special form of recess made on the
sides of the blocks to contain cement and form a watertight joint.
In the drawings, represents the blocks of vitrefied or other stone ware, or
other suitable material, which may be hollow, as shown, or solid if required; on
one end of each block is a spigot which, when the blocks are laid in position,
fits into the hollow part of the adjoining block, see Fig. 2, and so forms a key
and secures the proper linage of the blocks. On the side of each block we form
an undercut recess or recesses c lengthwise of the blocks and preferably of the
shape shown in Fig. 4, and similar recesses may be formed lengthwise on the
outside of the blocks, as shown in Figs. 1 and 3.
In building a sewer or culvert with our improved blocks the trench is first
prepared to receive the blocks and as each longitudinal layer is laid, the blocks
are locked by the spigot joints which are preferably cemented; the exposed side
of each block would be then covered with cement or other suitable material so
as to fill the under cut recess ready to receive a block which has had its side
also covered with cement so that when laid in position, the cement in the recesses
or the excess of cement projecting slightly from each face of the adjoining blocks
would cause the cement to be thoroughly forced into intimate contact with all
the surfaces of the recesses and thereby, when set form a key, in addition to the
joint made between the plain surfaces of the sides of the blocks.
Where the sewer, or the like, is to be covered with cement outside, the blocks
have grooves or recesses outside as represented in the drawings, so that the cement
can be forced into the grooves to key the blocks to the outside cement.
Although we have only described a sewer or culvert made according to our
invention it is obvious that wells, arches and the like can be constructed with
the improved blocks.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is-
The improved block provided with a spigot at one end and one, two or more,
undercut recesses formed on the sides so arranged that when the blocks are laid
in position with cement they will be locked both longitudinally and radially
substantially as and for the purposes described.
H. B. BARLOW & GILLETT,
Agents for Applicants, 17, St. Ann's Square, Manchester.