Year: 1887

page_text: We RICHARD MORRIS of Beechfield Doncaster in the County of York Engineer and
JAMES WOOD of West Stockwith in the County of Nottingham Engineer do hereby
declare the nature of this invention to be as follows:-
11
The object of this Invention is to provide a simple and efficient brake which can be
readily applied by movement in either direction of an operating lever or device and
which when applied or taken off is automatically locked in the one or the other
position. There are brake blocks one on each side of the wheel so that the wheel is
grasped between the two and there is not the strain on the axle that occurs when a
brake block on one side only of the wheel is used.
According to this Invention (which we will describe as applied to a railway truck)
we suspend the blocks by hangers from the truck framing. A shaft runs transversely
under the truck being mounted in bearings and provided with an operating handle on
each side of the truck. This shaft has two opposite cranks in it to each of which
cranks is connected by a long slotted connection one end of a rod both these rods
being connected by a link with the centre pin by which the adjacent brake block is
connected to its hanger. The long slots are for allowing either rod to be raised by
movement of the shaft in either direction as although such movement will cause one
or other of the cranks to carry the rod attached to it upwards it will allow the other
crank to move downwards in the long slot in its rod.
Thus the link which is common to both the rods operates the brake to put it on
whichever way the operating handle may be moved. In the mid-position of the
handles the cranks are in such a position that there is no tendency to move in one or
the other direction so that the brakes are locked off. When the brakes are on they
are locked in that position by reason of the cranks being moved to the opposite side
of the central vertical plane of the shaft.

page_text: The aforesaid rods also operate the brake block on the other side of the wheel by
means of connecting rods passing preferably on each side of the wheel and attached to
the said rods at one end and at the other end connected to a projection from the
banger of the said opposite block.
COMPLETE SPECIFICATION.
Improvements in Brakes, Especially Applicable to Railway
Trucks.
We RICHARD MORRIS of Beechfield, Doncaster, in the County of York, Engineer,
and JAMES WOOD, of West Stock with in the County of Nottingham, 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 :-
The object of this Invention is to provide a simple and efficient brake which can be
readily applied by movement in either direction of an operating lever or device and
which when applied or taken off is automatically locked in the one or the other
position. The brake blocks which are preferably of metal may be made to act one on
each side the wheel so that the wheel is grasped between the two blocks or two blocks
may be caused to act individually on the opposite sides of two separate wheels arranged
between the said two blocks.
The accompanying drawing illustrates in side elevation the last named arrangement
as applied to a railway truck from which its application to other vehicles will also be
readily understood. The brake blocks A A are suspended by hangers B from the
truck framing in the usual manner. Extending across the truck is a shaft D mounted
in bearings and provided with an operating handle F on each side of the truck.
This shaft has two cranks or arms G G2 arranged in opposite directions and working
in a slot or opening in a rod H which is connected at its lower end by a link or
links to the hanger B carrying the adjacent brake block A. Or instead of both
cranks working in one and the same slotted rod each crank may work in a separate
slotted rod or link, both rods or links being connected to the block A. The sloth in
which the cranks or arms G G² work is sufficiently long to admit of the movement
therein of either arm when the shaft D is turned in either direction to cause one
or other of the said cranks or arms to carry the rod H upwards to apply the
brake.

page_text: It will be seen that the rod H may be raised by turning the shaft D in either
direction and thereby cause either one or other of the cranks or arms G or G² to comme
into operation so as to raise the rod H and apply the brake. When the handle F is
in the mid position shown by full lines in the drawing the brake is off and the cranks
or arms G G have no tendency to move in either direction so that the brakes are
locked off. When the brakes are on, they are locked in that position by reason of the
cranks or arms being moved to the opposite side of the central vertical plane of the
shaft as shewn by dotted lines in the drawing.
The rod H is connected by a rod or rods K, preferably arranged on each side of the
wheel, to a projection from the hanger of the brake block A* which acts on the
opposite side of the wheel, or on the other wheel as shewn, so that when the rod H is
moved in either direction by means of the handle F both of the brake blocks A A²
are simultaneously operated.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is --
1. In brakes for railway trucks and other vehicles a shaft having two cranks or
arms and capable of being partially rotated in either direction so as to cause either one
or other of the cranks or arms to act on mechanism to apply the brakes substantially
as hereinbefore described with reference to the accompanying drawing.
2. In brakes for railway trucks and other vehicles the combination with a shaft
having two cranks or arms and capable of being partially rotated in either direction
of a slotted rod or link or slotted rods or links connected with the brake blocks and
operating substantially in the manner hereinbefore described with roference to the
accompanying drawing.
3. The general combination and arrangement of parts constituting the brake for
railway trucks and other vehicles as herein before described and illustrated by the
accompanying drawing.