Improved Automatic Brake for Railway and other Vehicles.
Year: 1898

page_text: Date of Application, 5th Aug., 1898-Accepted, 24th Sept., 1898
COMPLETE SPECIFICATION.
Improved Automatic Brake for Railway and other Vehicles.
I, ADOLF HEINRICH MARWEDE, 17, Linden Strasse, Steglitz, in the German
Empire, Merchant, 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 the present invention consists of an automatic brake for railway
and other waggons, and also for other vehicles.
This brake distinguishes itself from others in that it does not require to be
actuated by the driver, but comes into operation automatically through the back-
ward motion or push of the horse or other motive power.
By means of this device many accidents can be avoided because the brake is
no longer dependent on the co-operation and attentiveness of the driver or other
person.
Referring to the accompanying drawings:-
Figure 1 shews a side elevation of the automatic brake, and
Figure 2 a plan of the same from which the bottom of the waggon has been
removed.
The pole 1 of the waggon is arranged movably in a slot or other convenient
device attached to the waggon frame 2, so that the pole or the like when the
motive force is applied is drawn forward a certain amount, and presses against
a projection, whilst on the stoppage of the waggon it re-takes its original position.
By means of the drawbars 4, the length whereof can be adjusted by means of
the matrices 3, the tractive force is transmitted to a two armed lever 5, pivotally
connected with the draw bar, which lever is connected at the other end with the
bar 6. This latter transmits the motion-to the two double-armed levers 7 and 8,
which levers are connected at their other ends with the brake blocks 9 and 10.
The motion of the bar 6 shewn in Figure 1 is consequently reversed by means
of the levers 7 and 8 so that when the motive force presses the bar 6 forwards,
the brake blocks are pressed fast against the wheel. It will be seen that the
braking becomes stronger the quicker the motion of the car, and the more
suddenly the horses are held back by means of the reins. Moreover, the brake
comes immediately into play if the horses shy at an obstacle, and also if the
vehicle rushes forwards, as for instance in going down hill, and in these instances
also a perfectly automatic and powerful braking of the waggon takes place, so
that accidents become almost impossible.
The application of the brake according to the present invention can obviously
be made with adaptation of the requisite constructional arrangements for all
vehicles, and especially for railway cars.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is:-
Improved automatic brake for waggons and other vehicles characterized by
having the waggon pole or drawbar arranged movable with regard to the waggon

page_text: frame, so that its motion, by aid of suitable intermediate parts (levers and bars)
is transmitted to brake blocks placed near the wheel tyres in such a manner
that the said brake blocks apply themselves firmly against the wheels, when the
horse or other motive power pushes back, or the vehicle rushes forwards, and
thus effect the braking of the vehicle.
Dated the 5th day of Av 1900
W. P. THOMPSON & Co.,
322, High Holborn, London, W.C., Patent Agents for the Applicant.