Improvements in Brakes for Railway Wagons, Trucks, and the like.
Year: 1896

page_text: Date of Application, 14th Aug., 1896
Complete Specification Loft 20th Oct. 1006.
Accented 28th Nov 1896
PROVISIONAL SPECIFICATION.
Improvements in Brakes for Railway Wagons, Trucks, and the like.
We THOMAS THOMPSON, of Green Lane House, South Featherstone, in the County
of York, Colliery Manager, and JOHN ALLINSON, of 13 John Street, South
Featherstone aforesaid, Blacksmith, do hereby declare the nature of this invention to
be as follows:-
This invention relates to improvements in brakes for railway wagons, trucks, and
the like.
Hitherto when the brake block has become so worn as to be incapable of being
operated by the hand lever, the wagon or truck has required to be sent to the shops in
order that the operating levers may be removed for alterations such as say lengthened,
in order to be made capable of imparting the requisite power to the brake.
Now the object of the present invention is to provide simple and effective means
which will obviate removing these levers and also dispense with making or forming
fresh holes for leverage purposes, and thereby to save time and expense.
According to this invention the brake blocks are formed and hung as usual. To
each of the brake blocks are jointed two levers of any suitable length, thickness, shape
The said two levers
and size, that is one on each side of each of the brake blocks.
which are connected to each of the brake blocks are also coupled together by any
suitable means. The said levers are each provided with say a longitudinal slot hole
of any suitable length arranged at a convenient distance from the end of each lever
opposite to that at which it is jointed to the brake block.
Between each pair of levers that is connected to a brake block are placed two plates
arranged to be pivoted or jointed to the levers by a bolt or its equivalent at a point
out of centre as regards the length of the plate, but at the same time in such a
position as to permit of the plates being turned on the said pivot for varying the
leverage for operating the brake blocks as they become worn. In the plates are also
provided, at each end thereof, any desired number of holes-say for example two-
at different or varying distances from the pivot bolt.
One of the ends of each of the said plates is attached by means of a bolt (passing
through one of said holes) to the ordinary double ended lever frequently termed
a tumbler" mounted on a shaft to which the operating lever is also attached. The
last named bolt also passes through the longitudinal slot holes in the first mentioned
levers.
By passing the last named bolt through any of the holes at the ends of the plates,
"tumbler" and slot holes, provision is made for readily adjusting the operating levers
to the wearing away of the brake blocks.
The other portions of the brake mechanism may be of the usual and ordinary
construction.
11
TIL
Jon of Anout 1806

page_text: Improvements in Brakes for Railway Wagons, Trucks, and the like.
We, THOMAS THOMPSON, of Green Lane House, South Featherstone, in the County
of York, Colliery Manager, and JOHN ALLINSON, of 13 John Street, South
Featherstone aforesaid, Blacksmith, 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 improvements in brakes for railway wagons, trucks, and
the like.
Hitherto when the brake block has become so worn as to be incapable of being
operated by the hand lever, the wagon or truck has required to be sent to the shops
in order that the operating levers may be removed for alterations, such as say
lengthened, in order to be made capable of imparting the requisite power to the
brake.
Now the object of the present invention is to provide simple and effective means
which will obviate removing these levers and also dispense with making or forming
fresh holes for leverage purposes, and thereby to save time and expense.
In the drawings hereunto annexed :-
Fig. 1 is an elevation of a railway wagon with this invention applied.
Fig. 2 an enlarged elevation and
Fig. 3 an enlarged plan looking at the top of the parts forming our invention.
Like parts in all the views are marked with similar letters of reference.
A is the body portion of the railway wagon of the usual construction mounted upon
wheels B in the usual manner. The brake blocks C are formed and hung from the
body portion A in the usual and ordinary manner.
To each of the brake blocks C are jointed two levers D and E of any suitable
length, thickness, shape and size, and preferably, though not necessarily so, bent as
shown at Fig. 3. That is to say, the lever D is placed one side of a brake block C,
and the lever E on the opposite side of the same brake block as shown, and retained
in position by a bolt H which also acts as a fulcrum on which the said levers turn.
The said two levers D and E are also coupled together by any suitable means such as
for example, say, by bolts F and short tubes G. The said levers D and E are each
provided with say a longitudinal slot hole I of any suitable length arranged at a
convenient distance from their ends x that is opposite to that at which it is jointed to
the brake block C, through which bolt O, to be hereafter described, passes.
Between each pair of levers D and E, that are connected as herein described to a
brake block, are placed two plates J and K arranged to be pivoted or jointed to and
between the levers D and E by a bolt L or its equivalent at a point out of centre
as regards the length of each of the plates J and K, but at the same time in such a
position as to permit of the plates being turned on the said pivot L for varying the
leverage for operating the brake blocks as they become worn. The said plates J and K
may either be mounted separately and loosely upon the pivot L, or fastened together
by any convenient means such as by rivets at say M M. In the plates J and K are also
provided, at each end thereof, any desired number of holes N-say for example two-
at each end thereof and at different and varying distances from the pivot bolt L.
Or in place of the holes N a slot hole N₁ shown in dotted lines at Fig. 2 may be
provided in the ends of each of the said plates.
In some cases it may be found advantageous to employ a pair of narrower plates J
and K, than those shown in the drawings, with any required number of holes N
arranged in a longitudinal line at varying distances from the pivot bolt L.
To one of the ends of each of the said plates J and K is attached, by means of a
bolt (passing through one of said holes N or slot hole N¹) the ordinary double

page_text: ended lever P frequently termed "a tumbler" mounted on a shaft Q, supported by
the fixing R, to which the operating lever S is also attached. The last named bolt
also passes through the longitudinal slot holes I in the first mentioned levers D
and E.
By passing the bolt O through any one of the holes N, or slot hole N', at the ends
of the plates J and K, "tumbler " P, and longitudinal slot holes, provision is made
for readily adjusting the operating levers to the wearing away of the brake blocks.
That is, to say, when the brake blocks C are new or little worn, the bolt O can be
passed through the hole N in each of the plates J and K nearest to the pivot L, and
as the brake blocks C become worn, then by moving the bolt O into one of the holes N
that is further away from the pivot L, the brake blocks and operating lever S can be
readily adjusted to their work, without removal of the parts from the wagon, and
returning them to the shops for alteration. The slot holes I in the levers D and E
are provided to permit of the bolt O being passed through the holes N at varying
distances from the pivot L.
The other portions of the brake mechanism may be of the usual and ordinary
construction.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
The combination with a railway wagon and truck brake and its operating levers, of
slotted levers such as D and E, and plates such as J and K, which are arranged to
be pivoted at a point out of centre between the levers D and E, said plates J and K
being provided at each end with one or more holes, such as N or N', arranged at
different distances from the pivot L, whereby the said plates J and K are connected
to the first named levers by a bolt passing through the slot holes I and holes N as
and for the purposes herein before described and set forth.
Dated this Twenty-third day of October 1896.
THOMAS THOMPSON.
JOHN ALLINSON.