AN IMPROVEMENT IN DRAIN PIPES AND TILES
Year: 1855

page_text: LETTERS PATENT to Thomas Coëndoz Hill, of Stanton Lacy, in the County
of Salop, for the Invention of "AN IMPROVEMENT IN DRAIN PIPES AND
TILES."
Sealed the 13th July 1855, and dated the 19th January 1855.
PROVISIONAL SPECIFICATION left by the said Thomas Coëndoz Hill
at the Office of the Commissioners of Patents, with his Petition, on the
19th January 1855.
I, THOMAS COENDOZ HILL, of Stanton Lacy, in the County of Shropshire
Gentleman, do hereby declare the nature of the said Invention for "AN
IMPROVEMENT IN DRAIN PIPES AND TILES" to be as follows:-
My Invention consists in so shaping the ends of the pipes and tiles that when
two or more pipes are laid together they will form a good joint, will be rendered
more secure when together than with joints as now formed, and will admit of
any pipe or pipes being readily removed and one or more new pipes being 'laid
in its or their place. These advantages I secure by forming or cutting off
the ends of the pipe or tile at an angle, by preference, of 45°, but of any other
angle than a right angle. When two lengths of pipe so formed are laid
together they form a scarf joint.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Thomas Coëndoz Hill in the Great Seal Patent Office on
the 19th July 1855.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
COENDOZ HILL, of Stanton Lacy, in the County of Shropshire, Gentleman, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Nineteenth day of January, in the year of our Lord
One thousand eight hundred and fifty-five, in the eighteenth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
Thomas Coĉndoz Hill, Her special licence that I, the said Thomas Coëndoz
Hill, my executors, administrators, and assigns, or such others as I, the said
Thomas Coëndoz Hill, 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 "AN IM-
PROVEMENT IN DRAIN PIPES AND TILES," upon the condition (amongst others)
that I, the said Thomas Coëndoz Hill, by an instrument in writing under my
hand and seal, 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 Thomas Coëndoz Hill, do hereby declare
the nature of my 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, reference being had to the Drawings hereunto annexed,
that is to say:
My Invention consists in so shaping the ends of the pipes and tiles that
when two or more pipes are laid together they will form a good joint, will be
rendered more secure when together than with joints as now formed, and will
admit of any pipe or pipes being readily removed and one or more new pipes
being laid in its or their place. These advantages I secure by forming or
cutting off the ends of the pipe at an angle, by preference, of 45°, but at any
other angle than a right angle. When two lengths of pipe so formed are laid
together they form a scarf joint.
In the Drawings hereunto annexed I have shewn the manner in which
I carry my Invention into effect. Figure 1 represents an elevation of a

page_text: pipe; and Figure 2, a section of the same; in both of which Figures the
ends are cut off at an angle of 45°. Figure 3 shews a number of such
pipes united together, and represents the manner in which the joints a, a,
Jap over each other. Figures 4 and 5 are respectively elevation and longi-
tudinal section of a drain tile, the ends of which are formed also at an anglo,
of 45°. Figure 6 represents a series of these drain tiles united together.
Figure 7 represents a series of drain pipes, in which one end of two or more
of the pipes is cut off, or formed at an angle of inclination the reverse to
that of the opposite end; by this means one or more lengths of pipes so
formed can be lifted up vertically. Figure 8 shews a separate view of a couple
of pipes, one end of each of which is cut off, or formed at an angle at right
angles to that of their opposite ends. The purpose of these pipes is to form
an elbow or joint for leading the line of drain pipes off at an angle, as shewn
in Figure 9.
And having now described the nature of my said Invention, and in what
manner the same is to be performed, I declare that what I claim as my improve-
ment in drain pipes and tiles is, the forming or cutting off the ends thereof
at an angle, such angle being any other than a right angle, so that when two
pipes or tiles are laid together they form a scarf joint, as herein-before described,
and represented in the Drawings hereunto annexed.
In witness whereof, I, the said Thomas Coëndoz Hill, have hereunto
set my hand and seal, this Sixteenth day of July, One thousand eight
hundred and fifty-five.
Witness,
T. HILL,
Stanton Lacy, Salop.
THOMAS COËNDOZ HILL. (L.S.)