Improvements in the Manufacture of Roofing Tiles and Apparatus therefor.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Roofing Tiles and Apparatus
therefor.
I, ROBERT WALKER, of Birkenhall, Stifford, in the County of Essex, Engineer,
do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in the manufacture of roofing tiles
and apparatus therefor, but more especially to roofing tiles made from materials
of a cementitious or self hardening nature, and consists of a moulding machine
to which fits a further moulding apparatus for pressing into the upper surface
of the moulded tile, near to its upper edges where it will be overlapped, and there
form a channel to stop the water from being driven through between or under
the tiles.
This moulding apparatus when in its normal position with the edges of the
moulding box which are bevelled; forms a space which in the manufacture is
filled with materials and a tool drawn along parallel to the bevel on the mouth
of the moulding box, thus forming a raised moulding or projection on the face
of the tile a short distance from its overlapped edges. The object of this raised
moulding or projection is to have the place of contact with the overlapping tiles
some distance back from the edge so that moisture on the underside of the roof
from steam or other cause may be conducted to the outside of the roof instead of
dripping into the interior of the building.
I also strengthen the roofing tiles by inserting suitable pieces of metal more
especially at the hanging nib necks and around the nail holes and further I make
a loop or eye on the underside of the tile near its centre so that it may be fastened
by a suitable hook to the lath supporting the row immediately underneath.
Dated this 11th day of October 1897.
ROBERT WALKER.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Roofing Tiles and Apparatus
therefor.
I, ROBERT WALKER, of Birkenhall, Stifford, in the County of Essex, Engineer,
do hereby declare the nature of this invention, and in what manner the same is to
DQ11

page_text: be performed, to be particularly described and ascertained in and by the follow-
ing statement --
This invention relates to improvements in the manufacture of roofing tiles
and apparatus therefor, but more especially to roofing tiles made from materials
of a cementitious or self hardening nature, and consists of a moulding machine
to which fits a further moulding apparatus for pressing into the face of the
moulded tile near to its upper edges where it will be overlapped by the next tile
or tiles above it, and there form a channel and upset bevelled edge to stop the
water from being driven through, between, or under the tiles.
In the accompanying sheet of illustrative drawings:
Fig. 1 is an elevation of a complete apparatus for moulding one pattern or
roofing tile constructed according to this invention and Fig. 2 is a plan of the
same. Fig. 3 is a front elevation of a few üles secured in position on their latis
and Fig. is a vertical section of the same. Fig. 5 is a perspective sectional
elevation of a small portion of a roof also showing the method of securing the
tiles in position and Fig. 6 is a section of the central part of a tile showing means
for securing it to a lathi.
A bevelled frame a surmounting a table supported by a framework a forms
the sides of a mould provided with a movable bottom capable of sliding vertically
within it and which is connected by the rods e cross-plate f pillar rod y and
connecting rod to a treadle lever as shown. Normally the bottom d is in its
lowered position, resting on the table b, but by depressing the said treadle lever it
is raised and lifts the moulded tile a clear of the side frame a thereby permitting
of its ready removal. A channel mould is hinged fo lugs m on the table for
a purpose hereinafter specified.
In manufacturing a tile according to this invention niray is placed in the
mould and filled with the material which is struck level by any suitable tool such
as a metal blade: the hinged channel mould is then lowered on to the surface of
the tile and pressed therein to form a channel a and a trowel or other suitable
tool is drawn round parallel with the bevelled edges of the sides a of the mould
thus forming a raised moulding or projection o with bevelled edge on the face of
the tile. The channel mould is next lifted off the tile and the treadle lever
operated to raise the finished tile and its truy clear of the moulding box whence it
is removed by hand.
The object of the beforementioned bevelled edge is to have the line of contact
with the overlapping tiles some distance back from the edge, and so that moisture
on the underside of the roof from steam or other cause may be conducted to the
outside of the roof instead of dripping into the interior of the building. In some
cases also strengthen the rooling tiles by inserting suitable pieces of metal
more especially at the hanging nib necks and around the nail holes, and
further make a loop or eye g on the underside of the tile near its centre so that
it may be fastened by a suitable hook to the laih s supporting the row immedi-
ately underneath.
Ilaving now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
1. A roofing tile formed with a channel and bevelled upsel edge substantially
as described and for the purpose specified.
2. A roofing tile such as having a loop or eye adapted to be secured to a
laths by means of a hook r substantially as described and shown.
3. In an apparatus for moulding roofing tiles the combination with a mould
having bevelled sides and a movable bottom capable of being raised and lowered,
of a hinged channel mould adapted to be pressed into the surface of the tile
forming the channel, and while in that position acting as a gauge for striking
the bevelled apset edge, substantially as described and for the purpose set forth.

page_text: 4. In an apparatus for moulding roofing tiles the combination with a mould
having a movable bottom capable of being raised or lowered, of means, com-
prising a treadle and connections, for raising and lowering the said bottom and
a hinged channel mould, the whole substantially as described and shown.
5. The improvement in the manufacture of roofing tiles and apparatus therefor
substantially as described with reference to the drawings.
Dated this 10th day of May 1898.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.