Year: 1887

page_text: Date of Application, 8th June, 1887
Complete Left, 7th Apr., 1888
Complete Accepted, 11th May, 1888
We, WILLIAM DEWHIRST CLIFF of Wortley near Leeds in the County of York,
Fire Brick Manufacturer and BASIL EDWARD PETO of Gillingham Street, Pimlico
in the County of Middlesex Builder, do hereby declare the nature of this invention to
be as follows :-
The invention has for its object the production of a new or improved brick which is
more especially applicable to the construction of internal or partition walls where a
light fireproof partition is required but which may also be employed in the construction
of exterior walls to which weather tiling can be nailed.
According to our invention we use any suitable brick material and mix therewith
by pugging a large per centage for example about 75% of any cheap and con-
veniently obtained carbonaceous combustible material such for instance as saw dust,
breeze, ashes, ground spent bark, peat &c. we then force such compound brick
material through a suitable die or orifice of a brick making machine so formed as to
produce a continuous length of material of the section required for the brick or block
and having any desired or suitable number of perforations formed therein; or we may
for some purposes dispense with the perforations in the brick or block.
As the compound material issues from the brick making machine it is cut
transversely into the lengths required after which it is fired in any usual manner.
A brick or building block manufactured in the manner above described will when
fired not only be very light but will be porous and therefore capable of receiving and
bolding securely nails driven therein.
WILLIAM DEWHIRST CLIFF.
BASIL EDWARD PETO.
By Harris & Mills,
23, Southampton Buildings,
Agents.

page_text: COMPLETE SPECIFICATION.
A New or Improved Brick or Building Block.
We WILLIAM DEWHIRST CLIFF of Wortley near Leeds in the County of York
Fire Brick Manufacturer, and BASIL EDWARD PETO of Gillingham Street, Pimlico
in the County of Middlesex, Builder, do hereby declare the 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 :-
-
The invention has for its object the production of a new or improved brick which is
more especially applicable to the construction of internal or partition walls where a
light fireproof partition is required but which may also be employed in the construction
of exterior walls to which weather tiling can be nailed.
According to our invention we use any suitable brick material and mix therewith
by pugging a large per centage, for example about 75% of any cheap and con-
veniently obtained carbonaceous combustible material such for. instance as saw dust,
breeze, ashes, ground spent bark, peat &c.-we then force such compound brick
material through a suitable die or orifice of a brick-making machine so formed as to
produce a continuous length of material of the section required for the brick or block
and having any desired or suitable number of perforations formed therein; or we may
for some purposes dispense with the perforations in the brick or block.
As the compound material issues from the brickmaking machine it is cut
transversely into the lengths required after which it is fired in any usual manner.
A brick or building block manufactured in the manner above described will when.
fired not only be very light but will be porous and therefore capable of receiving and
holding securely nails driven therein.
We are aware that bricks have been made containing such materials in small
quantities but the present invention is for the making of bricks in which these
materials form the largest proportion and the clay the least, and we find by experience
that the proportion of clay should be very little, not exceeding 25 % of the whole,
although we do not confine ourselves to that limit.
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 new or improved brick or building block bereinhefore described.