Improvements in Brake Mechanism for Railway Wagons, Trucks, or the like.
Year: 1897

page_text: Date of Application, 7th dept., 1997
Complete Specification Left, 7th June, 1898-Accepted, 9th July, 1898
PROVISIONAL SPECIFICATION.
Improvements in Brake Mechanism for Railway Wagons, Trucks,
or the like.
We, BENJAMIN FROGGATT, of 162, Quarry Road, Bulwell, in the City of Notting-
ham, Furniture Dealer and Ironmonger, and WALTER COOK, of 47, Bestwood
Colliery, Bestwood, in the County of Nottingham, Mechanic, do hereby declare
the nature of this invention to be as follows:
This invention relates to improvements in brake mechanism for railway
waggons, trucks or the like, and it has for its object to provide a powerful brake
which can be applied from either side of the waggon or truck, and be taken off
again from either side irrespective of the side from which it was put on.
In carrying out this invention we place a brake block on the inner side of each
of the four wheels, and suspend said blocks on the lower ends of links or shackles,
the upper ends of which are connected to brackets secured to the under-framing.
Between the brake blocks is a transverse shaft mounted in bearings secured to
the underframing this shaft is provided with preferably four arms, two above the
centre of the shaft and two below. The outer ends of the two upper arms are connected
by adjustable links or shackles to the two brake blocks on one side of the shaft
and the outer ends of the two lower arms in like manner to the two brake blocks
on the other side of the shaft. By moving this shaft angularly in one direction
the whole of the brake blocks may be applied to the wheels whilst if moved in
the reverse direction they will be removed.
On each end of the shaft is an arm and the latter are each connected by adjust-
able links to side levers on the corresponding side of the waggon or truck. The
two side levers are secured on the two extreme ends of a transverse shaft which
is mounted in bearings secured to the underframing. With this arrangement
if the lever on one side is depressed or raised the lever on the other side will be
simultaneously operated.
In order to hold the brake blocks on or off each side lever is provided with one
or more pins or studs which engage either in a combined slotted and toothed
quadrant or a slotted quadrant and a toothed quadrant placed side by side. These
quadrants are secured on the ends of a transverse shaft carried in bearings secured
to the framing and the quadrants may be thus moved angularly in order to bring
their teeth into engagement with the pins or studs on the levers and hold the latter
in the required position.
It will be understood that the two side levers are secured on one common shaft
and the toothed quadrant on a second shaft common to both, it thus follows that
when the lever on either side is adjusted relatively to the corresponding toothed
quadrant the side lever and quadrant on the other side will be correspondingly
adjusted and the brake may be thus put on or taken off on either sides of the
trucks or put on from one side and taken off from the same or from the opposite
side of the waggon or truck.

page_text: A special notch may be formed in each quadrant to receive the pin or stud on
the corresponding side lever and hold the brake out of action.
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1
1007
BOULT & WADE,
Agents for the Applicants.
Improvements in Brake Mechanism for Railway Wagons, Trucks,
or the like.
We, BENJAMIN FROGGATT, of 162, Quarry Road, Bulwell, in the City of Notting-
ham, Furniture Dealer and Ironmonger, and WALTER COOK, of 47, Bestwood
Colliery, Bestwood in the County of Nottingham, Mechanic, 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 brake mechanism for railway
wagons, trucks, or the like, and it has for its object to provide a powerful and
effective brake which can be applied from either side of the wagon or truck, and be
taken off again from either side irrespective of the side from which it was put on.
The invention will be best understood by reference to the accompanying draw-
ings, in which
Fig. 1 is a side elevation, showing brake mechanism constructed according to
our invention, applied to a railway wagon or truck, part only of the latter being
shown.
Fig. 2 is a view looking at the underside of the wagon or truck.
Fig. 3 is a side elevation, and
Fig. 4 a view looking at the underside of a wagon or truck, showing alter-
native arrangement.
Like letters indicate like parts throughout the drawings.
In carrying out this invention we place a brake block A on the inner side of
each of the two wheels B on one side of the wagon or truck C as shown, or on the
inner side of each of the four wheels as preferred, and suspend each of the said
blocks A on the lower ends of links or shackles A. The upper ends of these
links or shackles A¹ are connected to brackets A secured to the underframing
of the wagon C.
Between the brake blocks A is a short transverse shaft or axle D mounted in
bearings D¹ secured to the underframing of the wagon. This shaft D is pro-
vided with two arms E E' each of which are connected to one of the brake blocks A
by links or shackles F.
The shaft D is also provided with an arm the outer end of which is con-
nected to or engages with the end G8 of a side lever G, by means of which latter
the brake is applied or removed by the attendant.
The lever G is secured on one end of a transverse shaft H which is mounted
loosely in bearings H secured to the underframing of the wagon, and at the
opposite end of this shaft is secured an arm or duplicate side lever G¹ (see Fig. 2,)
the latter being on the opposite side of the wagon to the side lever as shown.
In order to hold the brake on or off, the free end G3 of the side lever G is pro-
vided with a pin or stud I which engages with the teeth J¹ in the slot J of the
quadrant J. The free end G3 of the side lever G (see Fig. 2) on the opposite side
of the wagon, is also held by a precisely similar arrangement, and the two quad-
rants J are secured on the ends of a transverse shaft K which is mounted loosely
in bearings K¹ secured to the framing. Both quadrants may thus be moved

page_text: angularly about the shaft K in order to bring their teeth J¹ into engagement with
the pins-or studs I on the levers.
When the brakes are off, the pins or studs I of each lever G G¹ is placed in
the notch J (see Fig. 1) of the corresponding quadrant.
It will be understood that the two side levers G G₁ being secured on one common
shaft H, and the quadrants J on a second shaft K, it thus follows that when the
side lever on either side is adjusted relatively to the corresponding quadrant, the
side lever and quadrant on the other side will be correspondingly adjusted, and
the brake may thus be put on from one side, and taken off from the same or from
the opposite side of the wagon.
In the alternative arrangement shown in Figs. 3 and 4, the shaft D is preferably
carried from one side of the wagon to the other and it is provided at both ends
with an arm E⁹.
The side levers G G¹ may in this case be identical in form, and they are cach
fulcrummed on the shaft H or on independent pivots secured to the framing; their
ends G each engage with the corresponding arm E2 on the shaft D.
The free ends G³ of each of the side levers G G¹ is in this case provided with a
pawl M pivotted at G to the lever, and said pawls each engage with the teeth of
a fixed quadrant N secured on the corresponding side of the framing.
Each pawl M is formed with a side extension or pin M¹ in order that it will
engage in the notch N¹ of the quadrant N and hold the brake off, it is also pro-
vided with a tail piece M3 which is heavier than the pawl so that when the end G³
of either side lever is depressed the pawl which is in engagement with the teeth
of its quadrant will fall out and release that lever.
The pin M¹ of either pawls M may be released from the notch № by raising
either the corresponding lever or the one on the opposite side of the wagon.
With this arrangement when the brake has been applied on one side, say by
means of the side lever G, it may be taken off or adjusted from the other side,
by first depressing the end G3 of the lever G¹ until the end G3 of the side lever (+
is moved down sufficient to release the pawl M on that lever, the brake may be
then entirely taken off or readjusted by means of the lever G¹.
Either or both of the transverse shafts H and D shown, may be employed for
connecting the side levers G to the opposite side lever G as preferred.
If preferred the side lever on one side of a wagon may be placed in the position
shown in dotted lines at 1 (see Fig. 3), with this arrangement it will be seen that
the side lever on both side of the wagon may be conveniently operated by the
right hand of the attendant.
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:-
-
1. In brake mechanism for railway wagons trucks or the like the combination
with a side lever such as G and pivotted quadrant such as J placed on one side
of the wagon of an arm or lever such as G¹ and pivotted quadrant such as J on the
opposite side and shafts H and K for connecting the two levers and two quadrant
respectively substantially as described.
2. In brake mechanism for railway wagons trucks or the like the combination
with a brake block A of a lever such as EDE fulcrummed at Da side lever such
as G and quadrant such as J on one side of the wagon an arm or lever such as G¹
and quadrant such as J on the opposite side and shafts H and K for con-
necting the two levers and two quadrants respectively substantially as described.
3. In brake mechanism for railway wagons trucks or the like the combination
with a side lever such as G quadrant such as N and pawl such as M M2 placed on
one side of the wagon of a corresponding lever G' quadrant N and pawl M M² on
the opposite side and a transverse shaft H or D for connecting the levers G G¹
substantially as described.
4. In brake mechanism for railway wagons trucks or the like the combination

page_text: with a brake block A of a transverse shaft D arms such as E E E on the shaft D
a side lever such as G quadrant such as N and pawl such as M M³ on one side of
the wagon and a corresponding lever G' quadrant N and pawl M M* on the
opposite side substantially as described.
5. The combination and arrangement of parts constituting the complete brake
mechanism for railway wagons trucks or the like substantially as described and
illustrated in the accompanying drawings.
1
5000
BENJ. FROGGATT.
WALTER COOK.
Boult & Wade,
Agents for the Applicants.