Improvements in Brakes for Railway Wagons.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in Brakes for Railway Wagons.
I, LLEWELLYN WYNN WILLIAMS, Bachelor of Science, of the Railway
Appliances Works, Cathcart, Renfrewshire, Engineer do hereby declare the nature
of this invention to be as follows:-
This invention relates to railway wagon brakes and provides means whereby an
operator can apply one, two, three, or four brake blocks, from either side of a
wagon by ordinary right hand levers each of which works independently of the
other. I place on each side of a wagon a right hand lever suitably fulcrumed, its
one end being by a pin and slot connection attached to one end of a loop
link whose other end is loosely attached to a lever or arm rigidly fixed
to a transverse rocking shaft which runs from one side of the wagon to the other.
To this rocking shaft is rigidly fixed, at or near its centre a lever, the arms of
which are connected to the thrust rods which move the brake blocks in the usual
manner. The two armed lever which is fixed at its centre and the lever which is
fixed at its one end to the shaft may be substituted by one piece with three arms,
at the junction of which it is fixed to the shaft. Instead of the aforementioned
slotted loop link I can substitute an ordinary chain or two shackles to connect the
one end of the hand lever to the arm which is fixed to the rocking shaft. A spring
or springs or counter weight can be used when required to ensure the withdrawal
of the brake blocks from the wheels.
Dated this Tenth day of March 1896
LLEWELLYN WYNN WILLIAMS
I, LLEWELLYN WYNN WILLIAMS, Bachelor of Science, of the Railway
Appliances Works, Cathcart, Renfrewshire, 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 railway wagon brakes and provides means whereby an
operator can apply one two three or four brake blocks, from either side of a
wagon, by ordinary hand levers each of which works independently of the
other.
I append hereto one sheet of explanatory drawings in which the same reference
letters refer to the same or similar parts in the respective figures. As shown in
Figure 1 which is a perspective view of the brake fixed to a wagon, I place on
each side of the wagon a hand lever A suitably fulcrumed at A', its one end A*
being by an ordinary chain B two views of which with shackles B' are given in
Figure 2, or by two shackles only, attached to one end C¹ of an arm C of which

page_text: the other end C³ is rigidly fixed to a transverse rocking shaft D which runs from
one side to the other of the wagon. To this rocking shaft D is rigidly fixed at or
near its centre a lever E the arms of which are connected to the thrust rods F
which move the brake blocks G in the usual manner. A spring or counter weight H
is used when required to ensure the withdrawal of the brake blocks G from the
wheels.
The two-arm lever E which is fixed at its centre, and the lever C which is fixed
at its one end C' to the rocking shaft D, may be substituted by one piece shown
in Figure 4 with three arms, at the junction C2 of which it is fixed to the
shaft D. Figure 3 is a section of the shackle B₁ and pin B2 connection to
the lever C.
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 :-
The arrangement and combination of appliances for operating the brake blocks
of railway wagons substantially as herein described in reference to and shown in
the accompanying drawings.
Dated this Ninth day of December 1896.
LLEWELLYN WYNN WILLIAMS.