An Improved Brick or Tile Die.
Year: 1896

page_text: Date of Application, 2nd Apr., 1896
Complete Specification Left, 21st July, 1896-Accepted, 22nd Aug., 1896
PROVISIONAL SPECIFICATION.
An Improved Brick or Tile Die.
GEORGE VIGGARS Wholesale Beer Dealer, 1 North Street Newcastle Staffs,
do hereby declare the nature of this invention to be as follows:-
This invention consists of an improved method in the manufacture of bricks or
tiles by forming under-cut recesses in the same.
These recesses are formed by means of a cam or excentric fixed in the bottom
die which cam when the tile is being pressed rests upon the bed-plate and
projects above top face of bottom die thus forming one or more recesses in back
of tile. Upon lifting the bottom die from bed-plate after the tile is made the cam
or cams withdraw themselves from out of tile leaving the tile free.
The top die is worked in the usual manner.
Dated this First day of April 1896.
GEORGE VIGGARS.
I, GEORGE VIGGARS, of 1, North Street, Newcastle, Staffordshire, Wholesale
Beer Dealer, 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:-
This invention relates to improved means of forming undercut recesses in
the undersides of bricks, tiles and the like (hereinafter referred to as "tiles")
during the manufacture thereof in presses or dies, for facilitating their fixation;
the object of the invention being to simplify the devices necessary for the purpose,
and to ensure the production of clean and sharp undercuts in the tile while being
pressed between the dies, and the automatic withdrawal of the recess-formers,
without liability of injuring the overhanging edges of the undercuts, as the formed
tile is being raised to a position euabling it to be removed from the die.
On the accompanying drawings.
Fig. 1, represents an end elevation of a tile-die adapted in accordance with the
present invention, the die-box being shown in section, and the die being shown in
operation in the act of forming an undercut tile.
Fig. 2, represents a sectional elevation on the plane 1-1, Fig. 1, with the top
die removed.
Fig. 3, represents a like view to Fig. 2, showing the bottom die raised to allow
of the removal of the formed tile.
To the end aforesaid, the invention consists, essentially, in the application to the
brick or tile die wherein the brick or tile is pressed into shape, of one or a series of
tumblers a, each of which is fitted in a recess b1, made in the bottom die b, and is
pivotally mounted on a pin 62, screwed into such die, and is formed with a
projecting undercut-former a 1, and a tail-piece a 2, the former being adapted to
project above the surface of the die b, when in its lowest position (vide Figs. 1
and 2) and to form the undercut recess c 1, in the under surface of the tile c, when

page_text: the pressure of the top die d, is exerted on the tile material, (vide Fig. 1) and the
tail-piece being adapted to engage with a slot e 1, in an auxiliary plate e, applied to
the bed plate f, of the die, whereby the former a 1, is caused to maintain its recess-
forming position while the pressure of the top die is exerted on the tile-material
(vide Figs. 1 and 2) and is caused to be withdrawn from the formed recess c 1, by
the tumbler turning about its pivotal support 62, while the bottom die is being
raised (vide Fig. 3) to elevate the formed tile above the die box g, to enable it to
be removed and another tile formed by a succeeding operation of the press.
Having now particularly 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:
The application to a brick or tile-die of one or a series of undercut tumblers a,
fitted, mounted, formed, operated and adapted to operate in manner aforesaid.
Dated this 18th day of July 1896.
DAY, DAVIES & HUNT,
Chartered Patent Agents,
321, High Holborn, London, W.C., Agents for the Applicant.