Improvements in Actuating Mechanism for the Points of Railways and the like.
Year: 1898

page_text: Date of Application, 26th Apr., 1898-Accepted, 25th June, 1898
COMPLETE SPECIFICATION.
Improvements in Actuating Mechanism for the Points of
Railways and the like.
...at
We, ERNST NOELTE, of 80, Danzigerstrasse, Gentleman, and RUDOLPT LUTY,
of 28, Kleine Alexanderstrasse, Merchant, both of Berlin, in the Germ. Empire,
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 adjustable points for street
railways, which distinguish themselves from the arrangements for this purpose
hitherto known by the great simplicity of their construction, and the certainty of
their action and their durability.
The invention is illustrated in the accompanying drawing, in which
Figure 1 shews a section through the point apparatus in the vertical direction,
the plane of section being moreover transversely across the direction of the
ails.
Figure 2 is a similar section through one of the points, but in a direction
parallel to the direction of the rails.
At the point where the branch-off takes place the rails of the line are bedded
in an iron box c. This iron box c is divided by various cross partitions into two
larger and two smaller divisions. In the partitions c¹ are placed the bearings ²
in which for the purpose of better support the bar d, constructed quadrangular in
its middle is adjusted so that it is capable of displacement sideways. This bar
is held in its normal position, that is, to the right, by means of the spring e.
At the end of the bar is attached in an enclosure the bar f3, which bar engages
with its upper end in a cavity in the tongue of the point a and carries the said
tongue with it when it moves.
The to and fro motion of the bar d and of the point is caused by the action
of the two bars f and y both of them impelled upwards by means of springs; the
said bars being placed in two perpendicular cavities and placed in the
middle of the box c. Both the parts ƒ and g when lifted project somewhat above
the lever of the ground by means of their semicircular caps f and g', and they
can consequently be raised or depressed by means of the tram car moving over
them by aid of the pressure roller actuated by a lever mechanism at the will
of the conductor.
By means of the bar f the bar g engages with the lever i pivoted on the bolt i,
which lever in turn connects with the bar d by means of the pivot d. In order to
give the lever free play on its downwards and forwards motion the two
pivots and fare necessarily arranged to work in slots. It will be obvious that
by depressing the bar g the lever shewn in the accompanying drawing in the
form of a plate, revolves around its pivot i whereby at the same time a sideways
motion of the bar is occasioned. Attached to the piece f is the bolt g¹. This
engages under the pressure of the spring in the slot d², as soon as the bar d
by the depression of g is brought into the left position.
Under the platforms of the tramcars the two pressure rollers h and h¹ are

page_text: arranged, which rollers can be actuated at will by the conductor, and by means
of which he can turn the points at will either to the right or to the left. By the
depression of one of these pressure rollers the corresponding bar which comes to
lie exactly underneath it is pressed down, and thereby the corresponding position
of the points is obtained. If the bar d is caused by the depression of g¹ to move
quite to the left it will upon the depression of fi in consequence of the spring
power of e move of itself to the right because the bolt g¹ will be raised out of the
slot d³.
As may be seen from this description there exist in this point system in com-
parison with previous inventions relating to the same purpose very few points of
friction and moving parts. Further, these parts are capable of being made very
strong owing to the constructional arrangement, and are all of them protected by
means of a massive iron box from the dirt of the street, so that any interruption
of their working is rendered unlikely. It is of course obvious that the said box c
may be constructed of other materials than of iron.
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. The improved point-adjusting device for street railways characterized by the
construction at or near the points of a suitably formed box containing two bars
held up by springs, of which the one bar by means of an angle lever can actuato
a bar which moves the points, said bar being also enclosed in the aforesaid box,
and normally pressed by a spring to the other side, whilst the other spring bar
is capable of bolting the said point-adjusting bar by means of a suitable bolt in
the position opposed to the action of the spring, in such a manner that by the
depression at will of one of the two bars from the platform of the car the points
can be moved into the desired position.
2. The improved apparatus for adjusting the points of street railways from the
moving car about to pass over them, substantially as described and shewn in the
accompanying drawing.
سمم
•
1000
W. P. THOMPSON & Co.,
322, High Holborn, London, W.C.,
Patent Agents for the Applicant.