An Improvement in Chair Sleepers for Railways.
Year: 1896

page_text: Date of Application, 5th Dec., 1896
Complete Specification Left, 6th Sept., 1897-Accepted, 9th Oct., 1897
PROVISIONAL SPECIFICATION.
An Improvement in Chair Sleepers for Railways.
I, ALFRED RICHARD JONES, of 38 Inverness Terrace, Hyde Park, in the County
of London, Civil Engineer, do hereby declare the nature of this invention to be as
follows:--
My invention relates to chair sleepers for railways of the kind in which the rail
is held between a pair of jaws the one fixed and integral with the sleeper plate,
the other separate and strained into position by a key."
I make the separate jaw somewhat of L form, the base of the L resting on
the sleeper plate with its angle, which is rounded, bearing against a correspondingly
rounded shoulder projecting up from the plate. The upright limb of the Lis
curved so as to form at its upper end a jaw on one side of the rail corresponding
with the fixed jaw on the other side.
I provide through the upright sides of the sleeper plate and through side ribs of
the movable jaw, ways for a key, which on being driven, presses the base of the
jaw downwards thereby causing its upper end to clamp the rail firmly.
Dated this 5th day of December 1896.
ABEL & IMRAY,
Agents for the Applicant.
An Improvement in Chair Sleepers for Railways.
I, ALFRED RICHARD JONES, of 38 Inverness Terrace, Hyde Park, in the County
of London, Civil 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:-
My invention relates to chair sleepers for railways of the kind in which the rail
is held between a pair of jaws the one fixed and integral with the sleeper plate,
the other separate and strained into position by a key.
In the accompanying drawings Fig. 1 is a vertical longitudinal section and
Fig. 2 a sectional plan of a chair sleeper constructed according to my invention.
Fig. 3 is an end view of the moveable jaw and Fig. 4 is a cross section at X X
Fig. 1 shewing how the moveable jaw is strained into position. Fig. 5 is an
elevation of the gauge or tie bar for securing the chairs of a pair of rails together.
The sleeper plate A is constructed with a jaw B fixed and integral therewith
and with upright sides or brackets C extending on each side along that part
where the moveable jaw D is placed in position. The said moveable iaw Dis

page_text: constructed somewhat of L form, is provided with side ribs E and its base rests
on the sleeper plate A with its angle F which is rounded bearing against a corres-
pondingly rounded shoulder G projecting up from the sleeper plate. The upright
limb of this jaw is curved so as to fit at its upper end against one side of the rail R
corresponding with the fixed jaw B on the other side.
In the upright sides C of the sleeper plate A and through the side ribs E of
the moveable jaw D ways H are provided for a key K, which on being driven
in presses the base of the jaw D downwards thereby causing its upper end to
clamp the rail R firmly. Suitable holes L are provided through the two jaws for
the passage of the gauge or tie bar T which is secured in position on each chair
sleeper by a suitable key M.
Having now particularly described and ascertained the nature of this in-
vention and in what manner the same is to be performed, I declare that what I
claim is :-
A chair sleeper for railways consisting of a sleeper plate with the one jaw
integral therewith and having the second jaw moveable and capable of being
Etrained into position by a key so as to bear at the upper end against the rail and
at the lower end against an abutment on the bed plate, substantially as herein
described.
Dated this 6th day of September 1897