Improvements in Securing Flanged Rails to Metal Sleepers or Bearing Plates.
Year: 1892

page_text: Date of Application, 2nd Sept., 1892-Accepted, 1st Apr., 1893
COME LUID DIEVITTUATION.
[Communicated from abroad by EDWARD HERBERT STONE, Assistant Director,
General State Railways, Simla, India.]
Improvements in Securing Flanged Rails to Metal Sleepers or
Bearing Plates.
I, OLIVER IMRAY, of No. 28 Southampton Buildings, in the County of
Middlesex, Chartered Patent Agent, 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:-
According to this invention the flange of the rail is held between two jaws or clips
formed by punching up portions of a metal sleeper or of a bearing plate which can
be fixed on wooden or other sleepers, the securing of the rail between these jaws or
clips being effected in such a manner that a rail can be readily fixed or removed,
and that the gauge can be eased at curves.
Figure of the accompanying drawings is a transverse section and Figure 2 is a
plan shewing the fixing of a rail to a bearing plate according to this invention.
The special feature of the invention is the use of a key A. and a distance piece B
in combination with the bearing plate or sleeper so that the jaws C, D can be placed
sufficiently wide apart to allow of a rail being readily put in place or removed.
The distance piece B determines the definite gauge and the key A tightens up and
keeps the rail firmly secured. For normal gauge the distance piece B is applied
outside each rail, for the widest gauge it is applied on the inside of each; an
intermediate gauge between the normal and the widest can be obtained by applying
a distance piece inside the one rail and outside the other. A gradation of gauge
from normal to intermediate or from intermediate to widest is obtained by the
substitution of a second key for one of the distance pieces, the adjustment of the two
keys (one on each side of the rail) allowing the gradation to be effected over such
length as may be desired, instead of making a sudden change in gauge between one
sleeper and the next.
The distance piece B is by preference formed as a gib with two cars or lugs to
give it greater security against being tipped backwards, and with a taper
corresponding with the taper of the key. The jaws CD being similarly inclined
the rail is then fixed at right angles to the bearing plate.
The jaws or clips CD are shewn as being punched up from the body of the
bearing plate. They might obviously be fixed on the plate by rivetting or other-
wise, or the plate itself might be cast with these. Also the mode shewn of fixing
the rail to a bearing plate is obviously applicable in the case of a metallic sleeper,
having clips or jaws punched up or otherwise formed on or fixed to the sleeper.
Having now particularly described and ascertained the nature of my said
invention and in what mauner the same is to be performed, I wish it to he
understood that I do not claim the use of metallic sleepers or bearing plates,
having jaws for the purpose of securing flanged rails, nor do I claim the use of
taper keys for fastening rails on such sleepers or bearing plates, but what I
claim is
The use of a key and distance piece for securing flanged rails to bearing plates or
metallic sleepers substantially as described.
ABEL & IMRAY,
Agents for the Applicant.