Improvements in Coverings or Treads for Floors, Stairs, and the like.
Year: 1896

page_text: Date of Application, 28th Apr., 1898
Complete Specification Left, 25th Jan., 1897-Accepted, 28th Apr., 1897
PROVISIONAL SPECIFICATION.
Improvements in Coverings or Treads for Floors, Stairs, and
the like.
ALLAN TRACT, Mechanical Engineer, Merton House, London Road, Retford,
Notts, do hereby declare the nature of this invention to be as follows:-
An improved method of combining hard metal and soft metal or other material
to form non-slipping and non-extensible floor covering and stair nosing.
The hard metal may be brasa, copper, steel, iron &c. and the soft metal may be
lead or a soft composition, such as paper pulp, indiarubber &c.
The hard metal may be made in strips; the thickness of the finished tread
determining the width of the strip.
These strips shall be then corrugated or crimped, and the width of the finished
tread shall determine the length that the corrugated or crimped strips shall be cut
off. A sheet metal backing shall be made like a shallow tray, the size being the
same as a finished tread. This sheet metal tray shall have edges so cut as to either
admit the ends of the crimped strips being placed on them or in them and may also
have pyramids so forced up from underneath that each pyramid shall stand in the
space between each orimp.
This tray is uow filled up with the crimped strips and a sheet of lead or other
soft and suitable material is laid on top of same. The whole being now placed
under a powerful press and forced together filling all intersticea and holding all the
loose pieces together.
The same can be done by filling with a molten metal or soft pulp and allowing
same to set.
Strips may be used instead of trays for backing with similar cut edges to keep
crimped metal in place.
Dated this arch Inc. of Anvil 1904
Improvements in Coverings or Treads for Floors, Stairs, and
the like.
ALLAN TRACY Mechanical Engineer Merton House, London Road, Retford,
Notis, 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 statoment:-
An improved method of combining hard metal and soft metal or other material
to form uon-slipping and non-extensible floor covering and stair nosing. The hard
metal may be brass, copper, steel iron &c. and the soft metal may be lead or as a
substitute for the soft metal paper pulp, india rubber or other soft composition may

page_text: be used. The bard metal may be made in strips; the thickness of the finished
tread determining the width of the strips. These strips shall then be corrugated
or crimped and the width of the finished tread shall determine the length of the
corrugated or crimped strips shall be cut off. A sheet metal backing shall be made
like a shallow tray, the size being the same as a finished tread. This sheet metal
tray shall have the edges so cut as to either admit the ends of the crimped strips
being placed on them or in them and may also have pyramids so forced up from
beneath that each pyramid shall stand in the space between each crimp. This tray
is now filled up with the crimped strips and a sheet of lead or other soft and
suitable material on top of or with the same. The whole being now placed under
a powerful press and forced together filling all the interstices and holding all the
loose pieces together. The same can be done by filling with a molten metal or soft
pulp and allowing the same to set. Strips may be used instead of trays for backing
with similar cut edges to keep the crimped metal in place.
The accompanying drawings shew the various arrangements by which my
invention may be carried out in practice.
Fig. 1 shews in plan the backing or "tray" notched along the front and back
edges, the toothed projections being afterwards bent up perpendicular to the plaiu
part as shewn in plan in Fig. 2; side elevation in Fig. 3 and cross section
in Fig. 4.
Fig. 5 shews the corrugated metal strips bent up in pairs and
Fig. 6 shews how they may be made it preferred in continuous lengths.
Fig. 7 shews in plan these corrugated strips placed in position in the backing
or tray.
Fig. 8 shews the cross section A being the backing or tray; B. the lend or other
filling and C the edge view of the corrugated strips. The shaded lives shew the
form of mould used for pressing the corrugated metal into the lead or other filling
material. The pressure applied squeezes the lead into the spaces between the
corrugated metal until it is level with the top surface of the same. When, as for
stair nosings, a curved section is needed a suitably shaped mould would be used in
place of the flat one or the treads can be bent after manufacture as desired.
Having 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
The combination of corrugated metal strips and lead or other soft composition
filling, to form a tread for floor covering or stairs and a stair nosing substantially
as described.
Dated this 28th day of January 1807
ALLAN TRACY.