Improvements in the Manufacture of Metal Stair Treads, or Protectors for like purposes.
Year: 1893

page_text: Date of Application, 18th Apr., 1893
Complete Specification Left, 15th Jan., 1894-Accepted, 17th Feb., 1894
TROVITURA 13
Improvements in the Manufacture of Metal Stair Treads, or Protectors
for like purposes.
I, WILLIAM HENRY BAGLEY of Viaduct Works, Aston, in the County of
Warwick, Manufacturer, do hereby declare the nature of this invention to be as
follows:-
This invention, relates to the manner in which I construct and arrange metal
treads or protectors for attaching to stairs and for like purposes, whereby I am
enabled to obtain a durable surface and at the same time to obviate the tendency to
slip, caused by the employment of many forms of metal treads, or protectors now in
ordinary use.
In carrying my invention into effect I construct a metal frame preferably by
means of rolling sheet metal with a number of corrugations or depressions formed
within it, these corrugations or longitudinal or other grooves being arranged in such
a manner that the grooves upon the upper side are represented by corresponding
projections upon the lower or under side.
The form and shape of these grooves or channels I vary to suit any particular
requirement and I fill the grooves with lead or other suitable metal to provide a
smooth and continuous tread surface and to prevent the slippery tendency which
ordinary brass or like metal induces.
To prevent the lead from working out of the grooves or corrugations I provide
holes within the metal frame or bars of the brass tread plate so that when being
poured in, it may run from one side to the other forming as it were metal rivets
or connecting pieces securing the lead or metal in one groove to that in the
others.
I prefer to mount or fill my brass or main metal tread in a frame similar to an
ordinary strip ingot mould having a cover or lid, the whole of the lid fitting within
the frame so as to keep the brass tread securely within it while the molten lead or
other metal is poured into the open end or feeding opening provided upon the outer
portion of the lid.
When constructing very strong and large treads I sometimes place iron or other
material bars or wires within or across the framework of the tread so that when the
molten metal is run into the frame these bars may be secured thereto and thus
while strengthening the tread I also economise the amount of molten metal necessary
for the purpose.
I do not limit the application of my invention to any particular form of tread, or
to treads formed from sheet or rolled metal but I sometimes make my main frame
or metal case out of cast metal with a series of bars, bridges or holes provided upon,
and within them for permitting the lead or like molten metal. when poured in to be
rigidly tied or connected one portion with the other.
I arrange my improved treads with lips, or with nose projections to cover edges
of steps or stairs, or I provide my treads with lugs or fittings for the purpose of
allowing loose or separate front or other bars or plates to be readily attached
thereto.
Dated this 19th do of Amil 1002
MARKS & CLERK,
13, Temple Street, Birmingham, Agents for Applicant.

page_text: Improvements in the Manufacture of Metal Stair Treads, or Protectors
for like purposes.
I, WILLIAM HENRY BAGLEY, of Viaduct Works, Aston, in the County of
Warwick, Manufacturer, 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 the manner in which I construct and arrange metal
treads or protectors for attaching to stairs and for like purposes, whereby I am
enabled to obtain a durable surface and at the same time to obviate the tendency to
slip caused by the employment of many forms of metal treads or protectors now in
ordinary use.
In the accompanying sheet of explanatory drawings-
Figure 1 is a plan and Figure 2 à sectional elevation of one form of my improved
combination tread.
Figure 3 is a plan and Figure 4 a sectional elevation of a plain V shaped groove
tread I sometimes construct.
Figure 5 is a plan and Figure 6 a sectional elevation of a curved groove plate
which I employ for some purposes, and
Figure 7 is a sectional elevation of the curved plate tread applied to a nosing or
step corner or edge.
Figure 8 is a sectional plan of one method of filling the grooves which I employ
in connection with my improved combination tread.
In carrying my invention into effect I construct a metal frame preferably by
means of rolling sheet metal with a number of corrugations or depressions A A¹
Figures 1, 2, 3 and 4 formed within it, these corrugations or longitudinal or other
grooves being arranged in such a manner that the grooves upon the upper side A
are represented by corresponding projections upon the lower or underside A'. The
form and shape of the grooves and channels I vary to suit any particular require-
ment and I fill the grooves with lead or other suitable metal to provide a smooth
and continuous tread surface and to prevent the slipping tendency which ordinary
brass or like metal induces. To prevent the lead B B from working out of the
grooves or corrugations, I provide holes a within the metal frame or bars of the
brass or other metal tread plate so that when the lead is being poured in it may run
from one side to the other, forming as it were metal rivets b, or connecting pieces
securing the lead or metal in one groove to that in the others.
I prefer to mount or fill my brass or main metal tread when in a frame C some-
what similar to an ordinary strip ingot mould, having a cover or lid D, the whole
of the lid fitting within the frame so as to keep the brass tread A securely within
while the molten metal B is poured into the open end or feeding opening,
provided upon the outer portion of the lid.
When constructing very strong and large treads, I sometimes place iron or other
material bars or wires within or across the framework of the tread, so that when the
molten metal is run into the frame, these bars may be secured thereto, and thus
while strengthening the tread I also economise the amount of molten metal necessary
for the purpose.
I do not limit the application of my invention to any particular form of tread or
to treads formed from sheet or rolled metal, but I sometimes make my main frame
or metal case out of cast metal with a series of bars, bridges or holes, provided upon
and within them for permitting the lead or like molten metal when poured in to be
rigidly tied or connected one portion with the other.

page_text: I make my anti-slipping plates in suitable shape and form to serve as covers for
manholes, or coal filling holes, and I combine the metal tied ribs in frames for
pavement lights when so desired.
I arrange my improved treads with lips or with nose projections as shown in
Figure 8 to cover edges of steps or stairs or I provide my treads with lugs or
fittings for the purpose of allowing loose or separate front or other bars or plates to
be readily attached thereto.
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 :-
1. The construction of anti-slipping metal tread plates or coverings for steps,
pavements and the like having alternating ribs or projections and recesses or corru-
gations formed upon the surface, with holes or connecting passages between the
upper and lower recesses or projections for permitting the anti-slipping metal to run
or flow in its molten state from one division to the other and thus to rigidly
connect the anti-slipping metal to the recessed or grooved metal plate or frame,
substantially as herein before described and as illustrated in the accompanying
drawings.
2. In a stair tread plate, the arrangement of grooves with holes for tying the
metal together, substantially as hereinbefore described and as illustrated in the
accompanying drawings.
Dated this 13th day of January 1894.
MARKS & CLERK,
13, Temple Street, Birmingham, Agents for the Applicant.