Improvements in Railway Signal Posts.
Year: 1892

page_text: Date of Application, 20th Oct., 1892
Complete Specification Left, 20th May, 1893-Accepted, 24th June, 1893
PROVISIONAL SPECIFICATION.
Improvements in Railway Signal Posts.
I, LEICESTER BRADNEY STEVENS, of Darlington Works, Southwark Bridge
Road, in the County of Surrey, Engineer, do hereby declare the nature of this
invention to be as follows:-
This invention for improvements in the construction of railway signal posts has
for its object to render such posts more easily distinguishable by the drivers of
trains or others from a distance than is the case with the ordinary iron lattice or
braced posts at present in use; and consists essentially in covering one or more
sides or faces with light metal plate so as to present a continuous surface instead
of the open lattice work to the view, the said surface being preferably painted in
any suitable colour to render it more conspicuous.
In covering a side of a post as above described, I preferably place the said
plates between the corner angle irons and the panel braces, and secure them by
means of the rivets which secure the said panel braces and angle irons together.
By this arrangement less resistance is offered to the action of the wind than
is the case with solid wooden posts while presenting an equal visible surface.
When preferred the bracing on the side to which the plating is affixed may be
dispensed with.
Dated this 20th day of October 1892.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.
4
COMPLETE SPECIFICATION.
Improvements in Railway Signal Posts.
I, LEICESTER BRADNEY STEVENS of Darlington Works, Southwark Bridge
Road, in the County of Surrey, 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 :-
This invention for improvements in the construction of railway signal posts has
for its object to render such posts more easily distinguishable by the drivers of
trains or others from a distance than is the case with the ordinary. iron lattice or
braced posts at present in use; and consists essentially in covering one or more
sides or faces with light metal plate so as to present a continuous surface, instead of
the open lattice work to the view, the said surface being preferably painted in any
suitable colour to render it more conspicuous.
In the accompanying four sheets of drawings:
Figure 1 represents a front elevation of a lattice or braced signal post constructed
according to this invention and
Figure 2 is a side elevation of the same in which the front side or face of the
post is covered by a sight plate a to render it inore easily distinguishable by the
driver.
Figures 3 and 4 represent front elevation and horizontal section of a signal post.
The sight platea has slots or openings & cut in it, while to the post are secured
pins or studs c carrying buttons d. The sight plate is fixed by passing the
buttons d through the corresponding openings in the plate and then turning
them at right angles as will be clearly understood.

page_text: Figures 5 and 6 represent views similar to Figures 3 and 4, the sight plate a
being provided with holes through which pass studs or pins c secured to the post
by the bracing rivets, the plate being secured by split pins e.
Figures 7 and 8 represent side elevation and horizontal section respectively of a
part of a signal post. The sight plate a is attached to the post by means of
hooks rivetted to it and engaging with the bracing or lattice bars f.
Figures 9 to 35 inclusive represent horizontal sections of signal posts with sight
plates a of various cross sections.
Figure 9 represents a sight plate a of wood on one face of the post and secured
to the bracing by hooked bolts c.
Figure 10 represents a flat sight plate a placed diagonally and secured by angle
iron bars g rivetted to the corner iron bars h.
Figure 11 represents sight plates a covering two faces of the post and secured to
the corner angle irons by the bracing or other rivets.
Figure 12 represents a metal sight plate a secured to the bracing bars by
hooked bolts c.
Figure 13 represents a sight plate a secured by the bracing rivets between the
bracing bars and corner angle irons 4, the bracing next to the said plate being
dispensed with.
Figure 14 represents a similar arrangement to Figure 13 the bracing next to
the sight plate a being retained.
Figures 15 and 16 represent a sight plate a substituted for the bracing on one
side of the post and secured to the corner angle bars h by rivets.
Figure 17 represents a sight plate a placed in the centre of the post and secured
between the bracing bars f by rivets.
Figures 18 and 19 represent a sight plate a on one face of the post and secured
thereto by nuts and screwed lugs or clips c rivetted to the corner bars h or
bracing f
Figure 20 represents the bracing on one face of the post replaced by a sight
plate a secured to the corner bars by rivets.
Figure 21 represents a sight plate a outside the bracing on one face of the post
secured to the corner bars by bolts c.
Figure 22 represents a sight plate similar to that shown in Figure 21 but secured
by bolts c passing through clamping plates i.
Figure 23 represents a sight plate a on one face of the post bent at the edges
and secured by screws c.
Figures 24 and 25 represent bent sight plates a secured to the corner angle bars h
by rivets.
Figure 26 represents a post in which the flat sight plate is replaced by a
cylinder a.
Figure 27 represents a diagonal sight plate a secured to opposite corner angle
bars h.
Figures 28 and 29 represent signal posts with sight plates a extending across two
faces of the post.
Figures 30 and 31 represent signal posts with diagonal corrugated sight plates a
secured to opposite corner angle bars h.
Figures 32 and 33 represent signal posts in which the lattice bars on one face are
replaced by corrugated sight plates a secured to the corner angle bars.
Figure 34 represents a sight plate on one face of the signal post and secured to
the corner angle bar and
Figure 35 represents a similar arrangement to Figure 34 with the bracing bars
next to the sight plate removed.
It will be obvious that the form of the sight plates and the mode of connecting
them may be considerably modified without departing from the nature of this
invention.

page_text: 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. Rendering railway signal posts more visible by means of sight plates
substantially as described.
2. The method of and devices for attaching sight plates to lattice railway signal
posts substantially as described.
3. The combination of lattice and plate signal posts for railways substantially as
described.
4. The arrangement and combination of lattice railway signal posts and sight
plates substantially as described in the foregoing Specification and illustrated in
the accompanying drawings.
Dated this 20th day of May 1893.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.