An Improved Coping or Edging for Railway Platforms and the like.
Year: 1895

page_text: Date of Application, 26th Mar.. 1895
Complete Specification Left, 14th Dec., 1895-Accepted, 18th Jan., 1896
PROVISIONAL SPECIFICATION.
An Improved Coping or Edging for Railway Platforms and
the like.
I, EDWIN BREADNER, of 134 Deansgate, Manchester, in the County of
Lancaster, Engineer, do hereby declare the nature of this invention to be as
follows:-
The object of my invention is to form a coping for railway platforms and the
like, with a permanent white edge, which will conduce to the safety of passengers
alighting thereon.
I accomplish this by forming the coping of flags of concrete with a white edge
of the requisite width.
okh 1... of Manch 1905
OUMI DVIE
An Improved Coping or Edging for Railway Platforms and
the like.
1, EDWIN BREADNER, of 134 Deansgate, Manchester, in the County of
Lancaster, Engineer, 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 :-
The cbject of my invention is to form a coping for railway platforms and the
like with a permanent white edge, which will conduce to the safety of passengers
alighting thereon.
I accomplish this by forming the coping of flags of concrete with a white edge
of the requisite width.
For this purpose I preferably use cases or moulds of sufficient size to cast one
slab of concrete on edge, the bottom of each mould being suitably shaped to form
the edge of the slab.
Into this mould is first placed the white concrete in sufficient quantity to form
the edge, the lower side of the edge being kept open by means of a suitable
moulding projection or tool, which is removed before the rest of the mould is
filled up with any suitable ordinary concrete, so that the ordinary concrete fills
the interior of the white edge, thus economizing the more expensive white concrete,
and leaving the white concrete in the form of a layer of about an inch in
thickness round the front edge and the requisite width of the top of the
coping slab.
Referring to the drawing sent herewith, which gives an end perspective view of
one of my improved slabs, a indicates the white edging and the ordinary suitable
concrete.
For the white concrete, although I do not bind myself to any particular
mposition, I find a good proportion for an almost perfectly white edge, consists

page_text: a
of equal parts of Portland cement, and white limestone, or marble chippings,
proportion of white granite chippings being added in either case to give hardness,
in accordance with the amount of wear expected.
Another proportion, not perfectly white, but sufficiently so for all practical
purposes, consists of three parts of Portland cement to one part of the whiter
ingredients.
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 :-
An improved slab of concrete, with a white edge of suitable width, formed and
composed, substantially as described and shown herein before and in the
accompanying drawings, for the purposes set forth.
Dated this 11th day of December 1895.
JOHN HENRY TOPHAM,
7 South Corridor, Royal Exchange, Manchester, Agent to Applicant.