Year: 1896

page_text: Date of Application, 19th Nov., 1896-Accepted, 27th Mar., 1897
Figure 4 shows the movement of the device;
Figure 5 shows a modified form of construction of the arrangement shown in
Figures 1-4;
Figure 6 shows a completion of the hand lever by means of a orank for moving
the starting and braking device.
The wheel axle or the vehicle wheels n are provided with a ratchet wheel m, and
by the side of this wheel thore is mounted a segment piece i for guiding a pawl k
by means of a roller k normally connected with the pawl, which lattor engages
in the wheel m, the said segment resting on the axle o and being held by the
wagon body b', Figure 2, by means of a rod 1. The segment piece i may if desired
be provided with a projection i' to act as a point of support for the roller in
order to prevent the pawl rubbing on the ratchet wheel m. The pawl k is mounted
on a link or rod f passed through a bracket h, which bar is connected by means of
a bolt e, Figure 4, with a lever a a' pivoted at d. By the side of or parallel with
the wheel axle o is mounted a shaft r carried by the wagon body and having
levers and g (Figure 3) of which the first two carry a brake blook p whilst
the third or lover g which is connected at its upper euda, Figure 4, with the
rod f, serves for revolving the shaft r, that is for moving the brake blocks. The
bolt of the lever t¹ which movably carries in the ordinary manner the brake
block p is provided with a projections on the end facing the brake block, against
which projection the brake block must rest when it is drawn off the wheel. By
this means the desired action is obtained, enabling tho brake block to be held
entirely away from the wheel, and no longer allowed to rub with its upper or under
edge on the wheel when the brake ia drawn off.
The improvement hereinbefore described and shown in Figures 1-4 may be
replaced by a modified form of construction (Figure 5), the bar f carrying the
pawl being connected not directly with the levor a a', as in Figure 4, but (for
instance) at the point to with the lever t¹ mounted on the shaft r, Figure 5, and the
movement of the shaft r be effected by means of a lever g, also fixed on the same,

page_text: by means of a second link or rod f', which is connected at the point z with the
lever g and at the point e with the lever a a'. Instead of the bar f, a bar f',
Figure 6, carried horizontally may also be employed. This is toothed at its outer
end and engages here a pinion which is mounted on a vertical shaft j, which
carries at its upper end a crank handle j¹.
The mode of operation can be seen from Figures 2-4. In Figure 2, the vehicle
wheel is braked and the pawl at the outer end of its course stands ready for
engagement with the ratchet wheel m. If the lever a be drawn in the direction
indicated by the arrow, the part a' of the same will move outward (Figure 4) and
by means of the rod f first lift the brake block p, and then by means of the
pawl k draw round the ratchet wheel m or in other words start the carriage b'.
At the same time the brake block p is entirely removed from the wheel n, and is
tipped up and rests against the projections, and is thus held so removed from the
wheel n that it comes at no point in contact with the same. After the completion
of this movement, the lever a may be fixed by means of a suitable catch device
for instance such as c in Figure 2, it being immaterial whether the catch device be
arranged at the top on the protective sheet metal front b or on the bottom plato b',
and thereby the lever arin a a', according to the actual position of the brake, may
be held fast. In Figure 5, the rod and the brake are moved by the lever a a¹
the link or rod f' and the lever g, and in Figure 6 the movement of the rod / takes
place by means of the toothed bar connected at with the lever g (Figure 5)
in which toothed rod f' engages a píniou revoluble by means of a crank j'.
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 :-
1. An improved combined starting device and brake for omnibuses, tramcars,
goods wagons and the liko characterized by a double armed lever (a a¹) on the
lower end of which is pivotally attached a rod (f) which at its inner eud carries
a roller () (or a pin) adapted to move on a segment (i) held by means of the wheel
axle (o) and a stay or rod (1) said segment (i) in the case of carriages with fixed
axles being attached to the carriages or in the case of tramcars and the like loosely
mounted on the axle, substantially as described.
2. A form of construction of the herein described combined starting device and
brake, characterized by the actuating rod (f) being connected with a double
armed lever (a a') or with another pulling and pushing device (for instance such as
shown in Figure 6) by means of a second rod (f, Figure 6) and levers (t t¹ and g)
mounted on a shaft (r) substantially as described.
3. In the herein described combined starting device and brake, a shaft (r)
revoluble by means of a lever (g, Figures 2 and 5) aud rod (ff or f³) and
bearing levers (¹) which each carry by means of a bolt (4) provided with a
projection (a) a brake block (p) adapted to rest against said projection (s) when it
is drawn off the wheel, substantially as described.
Dated this 18th day of November 1896.
WM. P. THOMPSON & Co.,
Of 6 Lord Street, Liverpool, Agents for the Applicaut.