Improvements in Railway Chairs, Fastenings, and Sleepers.
Year: 1893

page_text: Date of Application, 23rd Dec., 1893
Complete Specification Left, 24th Sept., 1894-Accepted, 27th Oct., 1894
PROVISIONAL SPECIFICATION.
Improvements in Railway Chairs, Fastenings, and Sleepers.
We, ANGUS MURRAY of The Anderston Foundry Company, 100 Cheapside
Street in the City of the County of Glasgow, Engineer and ALEXANDER
TERTIUS HARVEY of 23 Grange Road, Middlesborough, Draughtsman, do hereby
declare the nature of this invention to be as follows :-
This invention has for its object improvements in the construction of chairs and
sleepers more especially as used for switches and crossings or for fixing guard rails
and in special devices for securing the chairs upon the sleepers.
In the case of chairs for switches and crossings where jaws are formed by cutting
punching or embossing metal plates for bolting or keying the rails thereto and
which have hitherto been cut at an angle to suit the rails we propose to set or bend
the plate to suit the angle of the rails, keeping the centre line of the chair plate as
nearly as possible at right angles to the rails, the holes cuts or other preparations
for fixing the rails being thus central to the chairs and more uniform strength in
the base plate being maintained.
In the case of the slide chairs, whereas it has hitherto been the practice to raise a
piece out of the part of the plate which comes underneath the rail and to form this into
the shape of the flange of the rail and cause it to bear on the flat against the web of
the fixed or main rail we propose to bend one or more pieces from the part of plate
projecting beyond this rail, doubling over and fitting to rail or we may emboss the
chair in such a form as to fit the flange and web and to such an extent as will form
a boss holding the bolt for fastening the rail.
In the case of fastenings for carrying guard rails we propose to form a special
chair or bracket in suitable metal which may be stamped or cast for fixing
by key or otherwise to the main rail between the sleepers, or when placed on
the top of the sleeper it may be fixed to same or form part of the fastening of the
main rail.
Dated this 22nd der of December 1909
COMPLETE SPECIFICATION.
Improvements in Railway Chairs, Fastenings, and Sleepers.
We, ANGUS Murray, of The Anderston Foundry Company, 100 Cheapside
Street, in the City of the County of Glasgow, Engineer, and ALEXANDER
TERTIUS HARVEY, of 20 Grange Road, Middlesborough, Draughtsman, do hereby
declare the nature of this invention and in what manner the same is to be
[Price 8d.1

page_text: statement :-
This invention has for its object improvements in the construction of chairs and
sleepers, more especially as used for switches and crossings or for fixing guard
rails.
The invention is illustrated under several modifications by the accompanying
drawings.
Figure 1 is a vertical cross section and Figure 2 a plan of one modification in
which the invention is applied to switches and crossings.
Figure 3 is a vertical cross section, Figure 4 a plan and Figures 5 and 6 elevations
from opposite ends of a modification applied to a line of rail, while Figures 7 and 8
are vertical cross section and plan respectively and Figures 9 and 10 vertical cross
sections of several modifications to which a guard rail is secured.
In the case of chairs for switches and crossings where jaws are formed by cutting,
punching or embossing metal plates for keying or bolting the rails thereto which
have hitherto been cut at an angle to suit the rails we set or bend the plate A as
shown at Figures 1 and 2 to suit the angle of the rails, keeping the centre line of
the chair plate A as nearly as possible at right angles to the rails B, the holes, cuts
and projections a or other preparations for fixing the rails being thus central to the
chairs and more uniform strength in base plates being maintained.
In the case of the slide chairs, whereas it has hitherto been the practice to raise
a piece out of the part of the plate which comes underneath the rail and to form
this into the shape of the flange of the rail and cause it to bear on the flat against
the web of the fixed or main rail we emboss the chair as shown by Figures 3, 4, 5
and 6 in such a form as to fit the flange and web, and to such an extent as will
form a boss 6 through which the bolt c passes for fastening the rail B to the chair
plate A.
In the case of fastenings for carrying guard rails we form a special chair or
bracket A¹ of the form shown by Figures 7 and 8 in suitable metal which may be
stamped or cast for fixing by key or otherwise to the main rail B between the
sleepers or when placed on the top of the chair or sleeper it may be fixed to same
as at Figure 9; or as indicated by Figure 10 part of the bracket may be cut and
turned into a recess d formed in the sleeper and in either case the bracket form
may
part of the fastening of the main rail B.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1. The construction of railway chairs for switches or crossings from plates set or
bent to lie at right angles to the lines of the rails and having the fastenings for the
rails cut or formed normal to the set of the plate substantially as described with
reference to Figures 1 and 2 of the annexed drawings.
2. The improved construction of slide and guard chairs substantially as
described, under different modifications with reference to Figs. 3 to 10 of the
annexed drawings.
Dated this 22nd day of September 1894.
CRUIKSHANK & FAIRWEATHER,
Chartered Patent Agents,
62, St. Vincent Street, Glasgow, Agents for the Applicants.