Ceilings and Appliances for making the same.
Year: 1886

page_text: Date of Application, 19th Aug., 1886.
Complete Left, 17th May, 1887.
Complete Accepted, 5th July, 1887,
Ceilings and Appliances for making the same.
JAMES DAVY DENNY (Manager at the Pant Glazed Brick and Terra Cotta Works
Ruabon, North Wales,) Meadow Cottage Llangollen North Wales late of Newbridge,
Ruabon, North Wales, do hereby declare the nature of this invention to be as
follows:-
The Girder Tiles are to be made of Ground moist Dust Clay, or Plastic Clay in
various Colors, and then Glazed or otherwise, and to be used for slipping on Girders
(see Drawing No. 1.) to carry the "Double Lock Tiles" in panels, in fact to carry any
panels made of Terra Cotta, Enamelled Iron or of any material.
The Box or Mould to be made of Cast Iron, Wrought Iron, Steel or Brass, the Box
or Mould is different to those now in use, for making ordinary Tiles (and can be
made of any depth or size as may be required) inasmuch as it has side, lifting and
Sliding Plates, also sliding or shifting Die or Plunger in Top Die, together with
regulating Plates.
The thickness of the Girder Lock Tiles may be regulated by raising the lifting
Plates as may be required for the bottom or soffit of the Tiles, and the Tongue formed
by aid of the lifting Plate D. and the groove by the use of the Plate P. the pressure
is put on the Groove by the Plate T screwed to the Top Die, see Drawing No. 2 which
shows how the Box or Mould is made.
Mode of making the "Girder Lock Tiles." Pull back Plate P so as to allow the
bottom Plate (and Pattern Plate) to pass up free in the Box, then lift the bottom
Plate, to within say 14 inches of the Top of the Box (or any other depth required for
the face of the Girder Tile) then fill the Box level with the Top of the Box, with
damp ground Clay Dust, then with a piece of Wood the size of the bottom of the
Sliding Die or Plunger B (on Drawing No. 2) slightly with the same, press the Dust
down to about the thickness of Flange Plate C, so as to allow the Flange Plate C to
pass through the Sliding Die B, after which lower down the bottom Plate to its
proper position, as before, as shown on Drawing No. 2 and section on line N. O. then

page_text: lift the lifting Plate D to the thickness that you require for the cavity, then push in
Plate J to hold Plate D in position, then lower the Dies A and B so that the Die A
will be about of an inch above the face of the Box, in order to allow the Dust to be
filled in, afterwards lower the Dies so that the bottom of Die B shall be level with the
Top of Flange Plate C, then push in Flange Plate C also Plate P. then press the Dies
down with a good force, and the Tile will be made and fast in the Box-Pull out
Flange Plate C. the Tile is then free and may be lifted out of the Box by raising the
bottom Plate.
The Girder Tiles may be made in an ordinary Press, by adapting the Bed of the
Press, so as to allow of the Plates &c. working.
PANELED CEILING OF "DOUBLE LOOK AND GIRDER-LOOK TILES.
The Ceiling Beams to receive the Girder Lock and other Tiles to be of a scantling
to suit the size of the Ceiling to be "Tiled "the Girder Tiles are slipped along the
Beam as shown at A on Drawing No. 1, a Brick being left out of the wall to admit of
the Girder Tiles being slipped along the Beam, when sufficient Tiles have been put
on the Beam to fill the space, all but the last one, or end Tile, the last or end Tile
is then pushed in the opening in the wall about 2 or 3 inches or more, so as to
allow the Tile to pass the Flange of Girder shown at E on Drawing No. 1. When
this is done, bring the Tile back on to the Flange shown at E on Drawing No. 1. in
order that it may lock with the preceeding Tile, put in the Brick which will support
the end of the Girder Tile, after that fix the double Lock Tile (shown by dotted lines)
underneath as shown at F, then it will be securely fixed.
The Centre Girder Tile is fixed as shown at D on Drawing No. 1. the Centre Tile
(Girder) is placed level with the other Girder Tiles (which are supported by the lock
and the flange of the Girder, then drop in the Oak Lock Flange as shown at No. 1
on Drawing No. 1, into the opening shown at G on Drawing No. 1, push the lock
forward so as to clip the groove or splay inside the Girder Tile, after which put in the
piece (with Glue) marked No. 2 on Drawing No. 1 then it will be firmly fixed, and
carry any weight.
The double Lock Tiles, for the Panels, can be slabbed with Cement at the Lock
joints, in Squares or otherwise as the case may be (or they may be fastened at the lock
joints with Glaze) and fixed in one piece, then dropped on the Girder Tiles as shown
at H on Drawing No. 1.
A Fireproof ceiling can be made by using Iron Girders instead of Wooden Beans,
fill in the spaces between the Tiles with old Plaster of Paris, that has been used, see
sketch marked X on Drawing No. 2.
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 Girder Lock Tile, the mode of Fixing the Tiles, and the
introduction of the Box. Sliding Die B, the lifting & Sliding Plates also the side
bottom Plates and mode of lifting the same.

page_text: g. No. 8 on Drawing No. 2 Transverse section of Box, Dies, Plates, Bottom
e, Bed of Press, Treadle, Plate T and side Bottom Plate V.
g. No. 8A on drawing No. 2 Elevation at W.
Perspective of Top Die or Plunger.
""
Top sliding or lifting Die or plunger.
Front Elevation of Flange Plate C.
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Back
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33
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Plan of Top of Flange Plate Ở looking down.
23
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page_text: been put on the Beam to fill the space, all but the last one, or end Tile, the
last or end Tile is then pushed in the opening in the wall about 2 or 3 inches
or more, so as to allow the Tile to pass the Flange of Girder shown at E on
Drawing No. 1 when this is done, bring the Tile back on to the Flange shown
at E on Drawing No. 1 in order that it may lock with the preceeding Tile, put in the
Brick which will support the end of the Girder Tile, after that fix the double Lock
Tile (shown by dotted lines) underneath as shown at F, then it will be securely fixed.
The centre Girder Tile is fixed as shown at D on Drawing No. 1, the centre Tile
(Girder) is placed level with the other Girder Tiles (which are supported by the lock
and the flange of the Girder, then drop in the Oak Lock Flange as shown at No. 1
on Drawing No. 1. into the opening shown at G on Drawing No. 1, push the lock
forward so as to clip the groove or splay inside the Girder Tile, after which put in the
piece (with glue) marked No. 2 on Drawing No. 1 then it will be firmly fixed and
carry any weight.
The double Lock Tiles, for the Panels, can be slabbed with cement at the Lock
joints, in Squares or otherwise as the case may be (or they may be fastened at the
lock joints with Glaze) and fixed in one piece, then dropped on the Girder Tiles as
shown at H on Drawing No. 1.
A Fireproof ceiling can be made by using Iron Girders instead of Wooden Beams,
fill in the spaces between the Tiles with old Plaster of Paris, that has been used, see
sketch marked X on Drawing No. 2.
The two drawings referred to are those filed with the Provisional Specification.
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 Girder Lock Tile and the mode of Fixing the Tiles, also the
Locks 1 & 2 to hold the centre Tile in Panel see Fig. No. 2 on Drawing No. 1. The
Box K, Top Die or Plunger A, Top Shifting Die or Plunger B, the several Plates
AA, C. D.T. P& Y all as shown on Drawing No. 2-Bottom Plate V and mode of
lifting the Bottom Plate V.