Year: 1898

page_text: I, HERBERT EDWARD ROOKE, Mining Engineer, residing at Raneegunge, in
the Province of Bengal, British India, do hereby declare the nature of this
invention to be as follows;
-
This invention relates to an improved cast iron combined sleeper and chair
for use in the system of permanent way in which the rail is suspended in the
jaws of the chair.
•
!
In the cast iron combined sleeper and chair at present in use, the moveable
jaw of the chair is dropped vertically into place and rests between two pro-
jecting ribs on the upper surface of the base-plate of the sleeper and is secured
in its place by a single cotter passed through the two ribs, the moveable jaw
and the gauge tie which holds the two sleepers together laterally. The defect
in this arrangement is that if the cotter (tapering key) works loose from vibra-
tion which it is liable to do or if it is maliciously removed the derailment of
a train is certain to occur as the gauge tie and moveable jaw being set free,
the sleeper is thrust outward, the moveable jaw slips back and the rail drops
down out of place. Further an excessive per centage of breakages occur owing
to insufficiency of stiffness in the base plate. This improved sleeper is designed
to remedy these defects (a) by stiffening the plate with extra ribs (b) by the
use of double cotters (c) by 'lifting the loose jaw from the side of the sleeper,
and (d), by using fish plates and belts for securing it in its place.
In the drawings hereunto annexed and which are to be read as part of this
specification the same letters or numerals are used to indicate like parts in
each figure.
Fig. 1 shows a plan of top of sleeper and chair complete with everything.
fitted and in place.
Fig. 2 shows a side view of same on the ribbed side with section of rail sus-
pended in jaws.
Fig. 3 shows a longitudinal section of same on line a, z.
Fig. 4 shows a cross section through centre of jaws, of combined sleeper and
chair.
!
Fig. 5 shows a plan of combined sleeper and chair with a wrought iron fish
plate closing in the open side, where the moveable jaw is inserted.
Fig. 6 shows a cross section of same through centre of jaws.
In this improved combined sleeper and chair (Figs. 1, 2, 3 and 4) A is the base
017

page_text: plate which is stiffened on the underside by a central longitudinal rib B and
a slight beading or flange C all round the edges and on the top by sloping
diagonal ribs 1 central projections E through which the gauge tie passes,
and rib G on one side of the plate only and its central part G¹ is projected
outwards to strengthen it at that point. The fixed jaw of the chair H is cast
on the plate A and the moveable jaw J is slid into place from the open side of
the sleeper and is held in position by gauge tie F and cotters K and K¹ and
to prevent it tilting its sloping toe L is held down by a corresponding slope L'
in the casting in contact with it. The rail M is shown suspended in the
jaws of the chair. In all cases the moveable jaw is set on the inside between
the rails, and on a straight run the wide cotter is placed outside the rail and
the narrow cotter on the inside but on a curve their positions are reversed so
as to allow a certain amount of looseness to gauge.
In Figs. 5 and 6 a modification of the above is shown by the addition of a
wrought iron fish plate N bolted to side ribs D) by short bolts P which completely
shuts in the moveable jaw J. At the same time as fish plate N considerably
stiffens the base plate A the under rib B may be dispensed with.
Other modifications that may be adopted are, (a) where traffic is light rib B
may be dispensed with without using the fish plate N (b) ribs G and G¹ may
be dispensed with and two (a pair) wrought fish plates used and (c) the
cotters K and K¹ may be dispensed with and bolts and nuts substituted therefor.
Dated this 11th day of November 1898.
Combined Sleeper and Chair for always.
I, HERBERT EDWARD ROOKE, of Raneegunge, in the Province of Bengal,
British India, Mining 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 relates to an improved cast iron combined sleeper and chair
for use in the system of permanent way in which the rail is suspended in the
jaws of the chair.
!
In the cast iron combined sleeper and chair at present in use, the movable
jaw of the chair is dropped vertically into place and rests between two pro-
jecting ribs on the upper surface of the base-plate of the sleeper and is secured
in its place by a single cotter passed through the two side ribs, the movable jaw
and the gauge tie which holds the two sleepers together laterally. The defect
in this arrangement is that if the cotter (tapering key) works loose from vibra-
tion which it is liable to do, or if it is maliciously removed, the derailment of
a train is certain to occur as the gauge tie and movable jaw being set free,
the sleeper is thrust outward, the movable jaw slips back, and the rail drops
down out of place. Further an excessive per centage of breakages occur owing
to insufficiency of stiffness in the base plate. This improved sleeper is designed
to remedy these defects (a) by stiffening the plate with extra ribs (b) by the
use of double cotters (c) by lifting the loose jaw from the side of the sleepers
and (d), by using fish plates and bolts for securing it in its place.
In the drawings hereunto annexed and which are to be read as part of this
specification the same letters or numerals are used to indicate like parts in
each figure.

page_text: Fig. 11s a central vertical transverse section of one form of my device.
Fig. 2 is a section on line 2, 2 of Figs. 1 and 4.
Fig. 3 is a side view from the left of Fig. 1, except that a rail is shewn in
position in the chair. Fig. 4 is a plan of Fig. 3. Fig. 5 is a plan of a modifi-
cation, and Fig. 6 is a central vertical transverse section of said modification.
In this improved combined sleeper and chair (Figs. 1, 2, 3 and 4) A is the base
plate which is stiffened on the underside by a central longitudinal rib B and
a slight beading C all round the edges and on the top by sloping diagonal
ribs D, central projections E integral with the base plate through which the
gauge tie passes, rib G being continuous on one side of the plate only, its
central part G¹ is projected outwards to strengthen it at that point. The oppo-
site side G2 which forms the sloping footings of the diagonal ribs D is formed
with a movable portion G this part being cast integrally with J. This allows
of the insertion of the movable jaw from one side. The fixed jaw H of the
chair is cast on the plate A and the movable jaw J is slid into place from the
open side of the sleeper and is held in position by gauge tie F and cotters K,
and K and to prevent it tilting its sloping foe L is held down by a correspond-
ing slope L' in the casing, in contact with it. The rail M is shewn suspended
in the jaws of the chair. In all cases the movable jaw is set on the inside
between the rails, and on a straight run the wide cotter is placed outside the
rail and the narrow cotter on the inside but on a curve their positions are
reversed so as to allow a certain amount of looseness to gauge.
In Figs. 5 and 6 a modification of the above is shewn by the addition of a
wrought iron fish plate N bolted to side ribs D by short bolts P which com-
pletely shuts in the movable jaw J. At the same time as the fish plate N
considerably stiffens the base plate A the under rib B may be dispensed with.
Other modifications that may be adopted are, firstly, where traffic is light
the rib B may be dispensed with without using the fish plate N, secondly,
ribs G and G may be dispensed with and two (a pair) wrought iron fish plates
used, and thirdly, the cotter keys K and K' may be dispensed with and bolts
and nuts substituted therefor.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
1. In a combined sleeper and chair, the combination of a base plate A having
beaded edges C, a central longitudinal rib Bon its underside, and on top,
diagonal ribs D, central projections E through which gauge tie passes, side
ribs G and G and fixed jaw" H all cast in one piece; and having an opening
on one side for insertion of movable jaw J, cotters K and K which secures gauge
tie F and said movable jaw J in position, both jaws holding rail M suspended
by its head, substantially as set forth.
2. In a combined sleeper and chair, the combination of a base plate A with
beaded edges C, diagonal ribs D on top, central projections E through which
gauge tie F passes, side ribs G and G and fixed jaw H all cast in one piece,
with an opening on one side for insertion of movable jaw J, cotters K and K¹
for securing gauge tie F and movable jaw in position for suspending rail M
in the chair jaws, substantially as set forth.
3. In a combined sleeper and chair, the combination of a base plate A,
diagonal ribs D, central projections E through which gauge tie F passes, ribs G
and G and fixed jaw H all cast in one piece, and having an opening on one
side for insertion of loose jaw J, cotters K and K for securing gauge tie F,
and loose jaw J, and a fish plate N bolted to ribs D, substantially as described
and illustrated.
4. In a combined sleeper and chair, the combination of a base plate, a central
jaw II and projections E said parts being connected with the base plate, a detach-
able jaw J, the base plate and movable jaw being so formed that the jaw can

page_text: be inserted from the side and inside of the projection E, parts E, H and J
being perforated transversely, gauge tie F passing there-through, said parts H, J
and having also perforations at right angles to the perforations first men-
tioned, and fastening devices therein.
5. In a combined sleeper and chair, the combination of a base plate, a central
jaw H, and projections E, said parts being integral with the base plate a detach-
able jaw J, the base plate and movable jaw being so formed that the jaw can
be inserted from the side, and inside of the projection E, the fixed under cut
edge L', and the movable jaw having an edge L fitting the same, parts E, H
and J being perforated transversely, gauge tie F passing there-through, said
parts H&J having also perforations at right angles to the perforations first
mentioned and F being also transversely perforated, and cotters K, K¹ engaging
with the perforations in said parts H, J, and F, substantially as described and
illustrated.
This 11th or of Aust 1800
S. S. BROMHEAD,
Agent for Applicant, 33, Cannon Street, E.C.