Improvements in Brakes for Railway Waggons and the like.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in Brakes for Railway Waggons and the like.
I, REUBEN THOMAS PRESTON, of the Firm of J. Stone & Co., of Deptford, in the
County of Kent, Engineer, do hereby declare the nature of this invention to be as
follows:-
1
I operate the brakes from either side of the waggon by means of double armed
hand levers having each its fulcrum under the waggon frame and with their inner
arm loosely jointed to a link connected to the end of a lever which is fixed or formed
on a cross shaft. The hand levers are used in connection with a vertical rack fixed
under each side of the waggon frame. The aforesaid link is by preference fitted
with an elastic pad or spring for the purpose of holding the hand levers when they
are in their notches for the normal or off position. Upon the aforesaid cross shaft
is fixed the usual double armed lever for connecting with the brake block.
To operate the gear one of the hand levers is raised vertically out of its notch
(against the effort of the spring pad) and then lowered into the required tooth of
the rack. By this action the hand lever on the opposite side of the waggon is
also raised out of its notch and then also entered into its corresponding tooth in its
rack. The cross shaft may be continued quite to the other side of the waggon if it
is desired to have a double armed lever fixed to it for operating brakes on that side
also. The aforesaid gear will usually be placed in the middle of the length of the
waggon but may in case of a hopper waggon be arranged at one end.
Doted this Vistaanth day of Tuna 1807
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.
Improvements in Brakes for Railway Waggons and the like.
I, REUBEN THOMAS PRESTON, of the Firm of J. Stone & Co., of Deptford, in the
County of Kent, Engineers, 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:-
I operate the brakes from either side of the waggon by means of doubled armed
hand levers having each its fulcrum under the waggon frame and with their inner
arm loosely connected or linked preferably in conjunction with an elastic medium
to the end of a lever which is fixed or formed on a cross shaft. The hand levers are
used in connection with a vertical rack fixed under each side of the waggon frame.
The elastic medium is provided for the purpose of holding the hand levers in their
רנס" מ

page_text: notches. Upon the aforesaid cross shaft is fixed the usual double armed lever for
connecting with the brake blocks.
Fig. 1 is a side view, Fig 2 an end view and Fig. 3 a plan of brake apparatus of
this kind applied to a railway waggon and shewn in the normal or "off" position.
Fig. 4 is a detail view. AA are two double armed levers each having a fulcrum
pin B in a bracket C fixed under the waggon frame and having their inner arm
loosely jointed to the fork end of a connecting rod or link shewn separately in Fig. 4
and consisting of two parts D and D' with an intermediate rubber pad H which serves
to hold the hand levers in their notches. The-rod D' is jointed to the end of a lever E
that is formed on a cross shaft F. The hand levers A are used in connection
with a vertical rack G fixed under each side of the waggon frame. The elastic
washer H between the ends of the levers A serves to prevent jar between the hand
levers A when they are in their notches. Or the hand levers may be so fixed as to
tend to spring apart by their own elasticity. Upon the cross shaft F is formed the
usual double armed lever I for connecting with the brake blocks K by the rods L.
To operate the gear one of the hand levers A. is raised vertically out of its notch
and then lowered into the required tooth of the rack. By this action the hand lever
on the opposite side of the waggon is also raised out of its notch and both levers are
then entered into their corresponding tooth in the respective racks against the effort
of the elastic pad H. The cross shaft E may be continued quite to the other side
of the waggon if it is desired to have a double armed lever like I formed or fixed on
it for operating brakes on that side also.
The aforesaid gear will usually be placed in the middle of the length of the
waggon but may in case of a hopper waggon be arranged at one end.
It will be seen that the shunter has to make like movements of the hand levers
whichever side of the waggon he may happen to be on so that he is not apt to make
mistakes.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I claim
is:-
Apparatus for operating brakes from either side of the waggon by a like movement
consisting of a double armed hand lever on each side said levers having their inner
ends under the waggon connected to a rod or link which is jointed to a lever on a
cross shaft that carries the usual double armed lever I connected by rods L to the
brake shoes, all so arranged in connection with a rack on each side that when one
hand lever by a movement towards one end of the waggon is lifted out of its rack
and then shifted vertically in said rack the other hand lever is lifted out of its rack
by a movement towards the same end of the waggon and shifted similarly vertically
in its rack, substantially as described with reference to the accompanying drawings.
Dated this 16th day of March 1898.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.