Improvements in Combined Sleepers and Chairs for Railways.
Year: 1889

page_text: Date of Application, 19th Nov., 1889
Complete Specification Left. 25th Jan. 1890-Accepted, 1st Mar., 1890
PROVISIONAI. SPECIFICATION.
Improvements in Combined Sleepers and Chairs for Railways.
I, ROBERT HUDSON, of Gildersome in the County of York, Engineer and Iron-
founder, do hereby declare the nature of this invention to be as follows:-
My invention of improvements in the construction or formation of railways relates
to the construction or formation of combined sleepers and chairs which comprise
metallic bars of suitable cross-section placed crosswise to the rails. Upon these bars
and between the rails I cast shoulders suiting the section of rails to be used, so as
to form the inner jaws of the chairs, or if preferred loose castings or washers suiting
the section of rails to be used, may be put on the metallic bars which would in that
case be fitted with shoulders screws, pins nuts or cotters between the rails to receive
the thrust of the outside cotters or screws.
The said metallic bars extend sufficiently beyond the outside of the rails for the
reception thereon of the outer jaws of the chairs each of which comprise a disc or
other suitably formed plane of metal for taking a bearing upon the ballast of the
line and is caused to grip the rail by means of cotters which may take into transverse
grooves formed on the aforesaid metallic bars, or if preferred the cotters may
pass bodily through the said bars, or screws and nuts may be substituted for the
cotters..
1000
COMPLETE SPECIFICATION.
Improvements in Combined Sleepers and Chairs for Railways.
I, ROBERT HUDSON, of Gildersome in the County of York, Engineer and Iron-
founder, 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 :-
My invention has reference to improvements in the construction of combined
sleepers and chairs for railways.
According to this invention each sleeper comprises a transversely arranged metallic
bar (or two or more bars placed together) of any suitable cross section and upon
which at a suitable distance apart are cast two shoulders that form the inner jaws
of two chairs, the shape of the jaws conforming to the section of rails with which
they are to be used. Provision is made for preventing end wise movement of the jaws
on the sleeper. Or instead of casting the inner jaws on the sleeper they may be cast
separately and be afterwards placed upon the sleeper which in that case is fitted with
shoulders, nuts, screws, pins or cotters to serve as abutments to receive or resist the
lateral thrust of the rails due to the securing in position of the outer jaws of the
chairs by other cotters, screws or nuts as hereinafter referred to.
The ends of each of the metallic bars constituting a sleeper, extend sufficiently
beyond the outside of the rails for the reception thereon of the outer jaws of the
chairs each of which comprises a metal plate of disc or other suitable form for taking
a bearing upon the ballast of the line. These outer jaws are caused to grip the
rails at the two sides of the track by means of cotters which may take into transverse
grooves formed on the metallic bar or sleeper, or if preferred the cotters may
pass bodily through the said bar, or screws and nuts may be substituted for the
cotters.

page_text: In the annexed drawings similar letters refer to like parts wherever they occur in
the several figures.
Fig. 1. is a vertical section partly in elevation.
a, is
Fig. 2. a plan, and Fig. 3, a side elevation of a combined sleeper and chair
according to this invention and suitable for supporting a double headed rail.
part of one end of a sleeper for carrying a double headed rail b,-c, is the inner jaw
of a chair cast on the sleeper, and c¹, is the outer jaw cast in one with a circular
or other shaped plate d, of inetal for bearing upon the ballast. The casting forming
the jaw c¹, and plate d, is formed with a hole through which the end of the sleeper
can pass as shewn.
The outer jaw is caused to move endwise on the sleeper and grip the rail by
means of a cotter e, that passes through a groove in the sleeper and through holes in
the said outer jaw as shewn, d', d', are ribs to strengthen the plate d. The other
end of the sleeper is provided with a similar chair.
Fig. 4, is a transverse section partly in elevation, and Fig. 5, is a side elevation
illustrating a modified arrangement in which the inner jaw c, of the chair is made
in one with the plate d, and placed upon one end of the sleeper a, so as to bear
against a shoulder f, thereon. The outer jaw c¹ is placed upon the outer end of
the sleeper, and is forced against the rail b, by the cotter e which passes through the
sleeper and bears against the outer jaw as shown.
Fig. 6, is a similar view to Fig. 1, showing the inner jaw c, of the chair cast on
the sleeper a, as in Figs. 1. and 2. or the said jaw may be forged thereon, and the
outer jaw c', and the plate d, cast in one piece and placed upon the sleeper, but in
this arrangement the outer jaw is caused to grip the rail 6, by means of a screw g,
that takes into the end of the sleeper a, and acts against a plate h', that bears against
the said jaw.
Fig. 7, is a vertical section partly in elevation illustrating a similar arrangement of
combined
sleeper and chair to that shown in Fig. 4, but the outer jaw c¹, in this case
is caused to grip the rail b, by a nut h, taking on the screw threaded end of the sleeper
and bearing against a plate ', bebind the jaw as shewn, or it may be by a screw g,
arranged to take into the end of the sleeper as in Fig. 6.
Figs. 8 to 15 both inclusive shew an arrangement of sleeper and chairs adapted
for the reception of flat bottomed or contractors rails 6-The inner jaws or
shoulders c, c, are shown upon the sleeper a, in sectional elevation in Fig. 8,-in
plan in Fig. 9. and in Fig. 10. in transverse sectional elevation at the line i. i. Fig. 8.
When the same are cast on the sleeper, one or more corners of the sleeper is or are
removed at these parts to form shoulders for the jaws.
Or these jaws may be pinned or otherwise fixed to the sleepers as shewn at ;,
Fig. 8.
Fig. 11. is a side elevation of the outer jaw c¹, and disc d.-If preferred the aforesaid
inner jaws c, may be forged on the sleepers a, as shewn in Figs. 13 and 14. The
disc or plane of metal d, for bearing upon the ballast of the line together with the outer
jaw c¹, may of cast metal (iron or steel) as shewn in Figs. 8, 9. and 11. or of wrought
iron or steel as shewn in Figs. 12. 13, 14, and 15.
Fig. 12, being a disc or other suitable form of plate into which I make two
slits k, k. Then I heat the said plate and cause the part 1, to be pressed in suitable
dies to the bridge form c¹, shewn in Figs. 13, 14. and 15. so as to admit the
sleeper a, and also to form the outer jaw and by notches c², to grip the rail 6¹.
These outer jaws c¹ are caused to grip the rails by means of the cotters e, at each
end of a sleeper, passing through it as shewn, or any of the before mentioned devices
may be used for the purpose.
Having now particularly described and ascertained the nature of this inven
tion, and in what manner the same is to be performed, I declare that what I
claim is
A combined sleener and chairs for mail…......

page_text: pairs of jaws, one of the jaws of each pair being made in one with a bearing plate
and the said jaws being mounted upon and secured to the bar in either of the
several ways hereinbefore described with reference to and shown in the drawings
annexed.
1000
David Was day of van
Witness,
THOS. E. CRAVEN, F.I.P.A.,
24, Victoria Chambers,
Leeds.
ROBERT HUDSON.