IMPROVEMENTS IN SEWER 'INVERTS,' AND IN APPLIANCES USED IN THE SETTING AND LAYING INVERTS AND DRAINAGE PIPES
Year: 1880

page_text: LETTERS PATENT to Waddington Brierley, of Blackburn, in the County of
Lancaster, Civil Engineer, for an Invention of "IMPROVEMENTS IN SEWER
'INVERTS,' AND IN APPLIANCES USED IN THE SETTING AND LAYING INVERTS
AND DRAINAGE PIPES."
PROVISIONAL SPECIFICATION left by the said Waddington Brierley at
the Office of the Commissioners of Patents on the 9th January 1880.
WADDINGTON BRIERLEY, of Blackburn, in the County of Lancaster, Civil
Engineer. "IMPROVEMENTS IN SEWER 'INVERTS,' AND IN APPLIANCES USED IN
THE SETTING AND LAYING INVERTS AND DRAINAGE PIPES."
The object of this Invention is,―
"
Firstly. The construction of sewer inverts" in such manner as to ensure con-
tinuity, and to facilitate laying or setting same.
Secondly. The construction of improved appliance to be used in the setting or
laying inverts and drainage pipes.
In the construction of inverts according to this my Invention one end of each
invert is provided with a projecting lip or part, which is received in a corresponding
recess formed in the abutting end of the next invert.
Another construction comprises recesses formed in one or both the angle edges or
faces of the inverts, within which recesses is placed an iron key, crossing the joint
of the two inverts and enclosed by the brickwork.
The sides of the invert are recessed for purpose hereinafter referred to, and the
under side or bed of the invert is likewise recessed.
In the setting or laying inverts I employ a clip or spanner (having screw
adjustment). Its gripping ends or jaws are received within the side recesses
of the invert, when by a single turn of the screw a secure hold of the invert is
obtained, and the latter may, during the setting or laying, be raised or lowered as
necessary.
In the laying drainage pipes the jaws are faced with india rubber, so as to grip
and hold on the glazed surface.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Waddington Brierley in the Great Seal Patent Office on the 7th July
1980.
WADDINGTON BRIERLEY, of Blackburn, in the County of Lancaster, Civil
Engineer. "IMPROVEMENTS IN SEWER 'INVERTS,' AND IN APPLIANCES USED IN
THE SETTING AND LAYING 'INVERTS' AND DRAINAGE PIPES."
The object of this Invention is,―
Firstly. The construction of sewer "inverts" in such manner as to ensure con-
tinuity, and to facilitate laying or setting same.
Secondly. The construction of improved appliance to be used in the setting or
laying "inverts" and drainage pipes.
In the construction of "inverts" according to this my Invention one end of each
invert is provided with a projecting lip or part, which is received in a corresponding
recess formed in the abutting end of the next invert.
Another construction comprises recesses formed in one or both the angle edges or
faces of the inverts, within which recesses is placed an iron key, crossing the joint
of the two inverts and enclosed by the brick work.
The sides of the inverts are recessed for purpose hereinafter referred to, and the
under side or bed of the invert is likewise recessed.
In the setting or laying inverts I employ a clip or spanner having adjusting
screw. The gripping ends or jaws are received within the side recesses of the
invert, when by a single turn of the screw a secure bold of the invert is obtained,
and the latter may, during the setting or laying, be raised or lowered as necessary.
In the laying drainage pipes the jaws are faced with india-rubber, so as to grip
and hold on the glazed surface.
Such being the nature and object of this my said Invention, I have hereunto
annexed a Sheet of Drawings illustrative thereof, and have marked the several
views with Figures of reference.
Figure 1 is a plan view of two invert blocks constructed according to this my
Invention; Figure 2 is an end elevation.
Figures 3 and 4 are also plan and end view of invert.
Figures 5 and 6 are front and edge views of improved clip or spanner.
In the construction of "inverts "1 according to this my Invention one end of each
invert is provided with a projecting lip or part 2, which is received in a corre-
sponding recess 3 formed in the abutting end of the next invert 4.
Another construction comprises recesses 5 formed in the angle edges or faces of
the inverts, within which recesses is placed an iron key 6, crossing the joint of the
two inverts 7, 8, and enclosed by the brick work. The sides of the inverts are
recessed at 9, 9, for purpose hereinafter referred to, and the under side or bed of
the invert is likewise recessed, as at 10.
In the setting or laying inverts I employ a clip or spanner 11, 11, having
adjusting screw 12. The gripping ends or jaws 13, 13, are received within the side
recesses 9, 9, of the invert, when by a single turn of the screw wheel 14 a secure
hold of the invert is obtained by the ends of the jaws 13, 13, entering the recesses
9, 9, so that the invert may, during the setting or laying, be raised or lowered as
necessary.
In the laying drainage pipes the ends of the jaws 13, 13, are faced with india
rubber 15, so as to securely grip and hold on the glazed surface.
Having thus fully described the nature and particulars of this my said Invention,
together with the manner in which the same is to be or may be performed or
carried into practical effect, I would have it understood that what I claim as my
Invention is,-
Firstly. The construction and use of inverts, as illustrated by Figures 1 and 2.

page_text: Secondly. The construction and use of inverts, as
and 3.
illustrated by Figures 2
Thirdly. The construction and use of inverts, in which the parts 2 and 6 are
employed in combination.
Lastly. I claim the construction and use of clip or spanner having screw adjust-
ment, in manner and for purpose herein described and as illustrated by Drawings,
or any mere modification thereof.
In witness whereof, I, the said Waddington Brierley, have hereunto set my
hand and seal, this Fifth day of July, in the year of our Lord One
thousand eight hundred and eighty.
Witness,
JOSEPH BRIERLEY,
Civil Engineer,
Blackburn.
WADDINGTON BRIERLEY. (L.S.)