Ceilings, and Appliances for Making the same. THE CON- STRUCTION OF FIREPROOF
Year: 1885

page_text: Ceilings, and Appliances for Making the same.
JAMES DAVY DENNY Newbridge, Ruabon, N. Wales Manager at Mr. J. C. Edwards,
Encaustic Tile Dept. Penybont Brick & Tile Works near Ruabon, North Wales,
do hereby declare the nature of my invention for Lock BLOCKS, FOR THE CON-
STRUCTION OF FIREPROOF, VENTILATING CEILINGS AND APPLIANCES FOR MAKING
THE SAME to be as follows:-
The Lock Blocks are for the construction of fireproof and Ventilation of Ceilings,
they do not require any girders or pillars as they lock one in the other and thereby
self supporting, the bottom of the Blocks form the Ceiling, and the top of Blocks
the Floors; the openings or flues for Ventilation &c can be adapted as may be
required to suit any building.
The bottom of the Blocks which form the Ceiling may be ornamented or plain,
they can be glazed or otherwise the top of the Blocks, forming the floor, may have
an indented pattern on them, to prevent them being "slippery." The Blocks are
easily fixed with Cement and Plaster of Paris mixed, (which is fireproof), put at
the joints and then slipped in "one another."
DESCRIPTION OF BOXES OR MOULDS.
The Boxes or Moulds can be made of Iron, Steel or Brass as may be wanted,
they are different to the Tile and Brick Boxes now in use, which are in one piece,
my Boxes or Moulds have openings in the sides and ends, for the side and end
Dies, lifting and sliding Plates.
The top Die have a sliding Pattern Plate let into it unlike the ordinary top Dies,
which are in one piece and plain.
The side and end Dies are pulled out so as to be flush with the inside of the
Boxes or Moulds, before the Clay is put in the Box, and then pushed in by the aid
of the screws &c to form the Patterns of the Blocks as described further on.
See Drawing
How the Blocks are made. Pull out all the Dies and Plate N flush with the
inside of the Box so as to leave the Box free, then raise the lifting Plate K, to
the thickness required for the tongue of Lock Block No. 1. at the same time
pushing Finger Plate M. into the hole of the lifting Plate K to hold (Plate K) in
The Boxes or Moulds can be made of Iron, Steel or Brass as may be wanted,
they are different to the Tile and Brick Boxes now in use, which are in one piece,
my Boxes or Moulds have openings in the sides and ends, for the side and end
Dies, lifting and sliding Plates.
The top Die have a sliding Pattern Plate let into it unlike the ordinary top Dies,
which are in one piece and plain.
The side and end Dies are pulled out so as to be flush with the inside of the
Boxes or Moulds, before the Clay is put in the Box, and then pushed in by the aid
of the. screws &c to form the Patterns of the Blocks as described further on.
See Drawing.
How the Blocks are made. Pull out all the Dies and Plate N flush with the
inside of the Box so as to leave the Box free, then raise the lifting Plate K, to
the thickness required for the tongue of Lock Block No. 1. at the same time
pushing Finger Plate M. into the hole of the lifting Plate K to hold (Plate K) in

page_text: position after which take a piece of Plastic Clay sufficiently large to fill in the
space, or groove, of the bottom Plate, and to be level with the bottom of end Dies
marked G on Drawing, see longitudinal section of Box, then push in the end Dies
marked G as shown, by longitudinal section of Box, on Drawing, then put your
foot on the treadle or lifting Rod, to raise the bottom Plate, in order to press the
Clay a little to make it solid, after which put another piece of Plastic Clay large
enough to fill the Box or within an inch or so of the top of the Box, then lower
the top Die gently down, after doing that pull out the Finger Plate M, then send
the top Die down level with the top of the Box, see longitudinal and transverse
sections, on Drawing, then push in Plate N. and the side Dies E and F so that
they are flush with the outside of the Box (in fact push them in as far as they
will go) the Block is then made. Pull all the side Dies and Plates out, (taking
lifting Plate K out altogether) so as to allow the Block to pass free in the Box,
afterwards raising the bottom Plate sufficiently to take the Block out. The Lock
Blocks are made top downwards.
No. 2 Key Lock Block is made by the same process as No. 1 Lock Block as
shown on Drawing.
The Blocks are to be made in an ordinary Brick, or Tile Press, my Invention for
making the Blocks being in the Box and the side Dies, Plates & lifting Plates, and
especially in the slanting side Dies, by using the slanting side Dies, an impression
can be put on Terra Cotta, or any Clay, on a slanting face so as to deliver from
the impression free.
The Box Plates &c to be of Iron Steel or Brass &c. The Facing Plate is slipped
on the top Die, any Pattern Plate can be put on the top Die as may be required
that are made now, they only being dipped on the face with slip.
Terra Cotta (Blocks) or Brackets &c. may be made out of the Box by having
Ornamental Facing Plates slipped on Plates C.

page_text: DESCRIPTION OF BOXES OR MOULDS.
The Boxes or Moulds can be made of Iron, Steel, or Brass, as may be wanted,
they are different to the Tile & Brick Boxes now in use, which are in one piece,
my Boxes or Moulds, have openings in the sides and ends, for the side and end
Dies, lifting and sliding plates.
The top Dies have a sliding pattern plate let into it, unlike the ordinary top
Dies, which are in one piece and plain.
The side and end Dies are pulled out so as to be flush with the inside of the
Boxes or Moulds; before the Clay is put in the Box, and then pushed in by the
aid of the screws &c to form the Patterns of the Blocks, as described further on―
See Drawing.
How the Blocks are made. Pull out all the Dies and Plate N. flush with the
inside of the Box, so as to leave the Box free, then raise the lifting Plate K to the
thickness required for the tongue of Lock Block No. 1. at the same time pushing
Finger Plate M. into the hole of the lifting plate K. to hold plate K in position,
after which take a piece of Plastic Clay, sufficiently large to fill the space, or
groove of the bottom Plate, and to be level with the bottom of the end Dies
marked G on Drawing, see longitudinal section of Box, then push in the end Dies
marked G as shown by longitudinal section of Box, on Drawing, then put your
foot on the treadle or lifting Rod to raise the bottom plate, in order to press the
Clay, a little to make it solid, after which put another piece of Plastic Clay large
enough to fill the Box, or within an inch or so of the top of the Box, as may be
required, then lower the top Die gently down, after doing that pull out the finger
plate M, then send the top Die down until it finds its level with the top of the
Box, see longitudinal and transverse sections on Drawing then push in plate N.
and the side Dies E & F so that they are flush with the outside of the Box (in fact
push them in as far as they will go) the Block is then made, pull all the side Dies
and plates out (taking lifting plate K out altogether) so as to allow the Block to
pass free in the Box, afterwards raising the bottom Plate sufficiently to take the
Block out of the Box, the No. 1 Lock Blocks are made "top downwards."
"
No. 2 Key Lock Blocks are made by the same process as No. 1 Lock Block, but
with "top upwards," as shown on Drawing.
The Blocks can be made in the ordinary Brick or Tile Presses, by altering the
Bed of the Press" to suit my Boxes or Moulds.
Having now described and ascertained the nature of my said Invention,' and
in what manner the same is to be performed; I declare that what I claim is as
follows,
Of having invented the Lock and Key Block Nos. 1 & 2 (as shown on Drawing)
making a Fireproof Ventilating Ceiling and Floor combined, also of having
invented the Boxes or Moulds by which the blocks are made, also the side
& slanting Dies, Plates, sliding and lifting Plates, especially in the slanting Dies,
for this Patent, by the use of these slanting Dies, an impression can be put on
Terra Cotta or any Clay on a slanting face or cove, so as to deliver from the
impression free.