Year: 1888

page_text: Date of Application, 24th Jan., 1888
Complete Specification Left, 27th Sept., 1888
Complete Specification Accepted, 16th Nov., 1888
I RUDOLPH DOLBERG of Rostock, Grand-Duchy of Mecklenburg, German Empire
manufacturer, do hereby declare the nature of this invention to be as follows :-
My invention relates to improvements in switches and crossings for field-railways,
as substantially described in the following specification.
The switch consists of the two rails 66, and the two moveable pieces or tongues c c³,
which are fastened on the sleepers & d¹ and d².
The switch is laid on a straight track the shaped plate ff¹ fits over the rail a²,
and these are fastened to the
fig. 3 and 4; to the flanges of ff¹ are riveted plates g
wooden sleepers d d¹ and d³ by bolts. The tongues c c are provided at one end with
pins e e¹ which fit into holes provided for them in the sleepers d¹ and d², fig. 1 and 3.
The other ends of the tongues c c¹ are fastened to the tapering pieces h h¹ which rest
on the rails a a¹ by the pieces ii. In order to prevent the tapering pieces from
moving the plates p p¹ are fastened to the other side of them, which fasten on to the
rail heads a a¹. A car coming in the direction of the arrow, fig. 3, is lifted by means
of the inclined pieces h¹ sufficiently high enough so that the tire of the wheels can
pass over the rails a a' and passing over the rails c c & bb', of the crossing on to
the side track q q¹. When the wheel leaves the rail b the tire runs on the plate f till
it reaches the rail q.
It is not necessary to remove the switches from the main rails when cars are
passing over the same, only the inclined pieces with the tongues c c¹ are lifted
and brought into the position as shown in the drawing (fig. 3) by the dotted lines
by means of the handles r¹, and so the main rail left quite clear, whilst the wheels
will only have to pass over the formed plates and are only lifted the thickness of
the metal.
To give the wheel a better base when crossing the rails a the crossing can be
arranged as shown in figs. 5, 6 and 7. In order that the tire of the wheels in passing
from the rail ỗ to the rail q may be uninterrupted there are three cornered iron
;

page_text: plates riveted to the crossing, sufficiently thick, to be level with the top of the
plate. In coming on to the main track from a side track, the wheel must be lifted
the height of the tire, which is done by the inclined pieces ll riveted on f see fig. 6.
In order that the wheels may run as little as possible on the tire edges, there can be
a piece of iron m riveted on the crossing point on f, level with top of the inclined
pieces and top of rail.
With rails with a rim, there can be a guard rail s fastened on the sleeper d.
Figs. 8, 9, 10, 11 and 12 show a form of hinge for laying over the main tract line
when using the branch line this hinge can be turned back (as shown by the dotted
lines in fig. 9) when it is required to leave the main track free.
It is used in the following manner; the
formed piece. fig. 12, which is
fastened to a plate, this plate being binged at and when laid over the rail a¹, fills
up the space between the rails 6 & g of the branch line.
Dated this 20th day of January 1888.
RUDOLPH DOLBERG.
By A. Kuhnt & R. Deissler,
38, Alexander Str., Berlin, Germany,
His Attorneys.

page_text: I, RUDOLPH DOLBERG of Rostock, Grand Duchy of Mecklenbeurg German Empire,
manufacturer, 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:-
My invention relates to improvements in switches for field-railways, as substantially
described in the following specification.
In order to make my invention more clear, I refer to the drawings which were left
with the provisional specification and in which similar letters denote similar parts
throughout the different figures.
The switch consists of the two rails 6 6 and the two moveable pieces or tongues e c¹³,
which are fastened on the sleepers d d¹ and d².
The switch is laid on a straight track; the shaped plates ff¹ fit over the rail a¹,
fig. 3 and 4; to the flanges of ff are riveted plates g g₁ and these are fastened to
the wooden sleepers d d and d by bolts. The tongues e e¹ are provided at one end
with pins e e, which fit into holes provided for them in the sleepers d¹ and d²,
figs. 1 and 3.
P
C
The other ends of the tongues e c¹ are fastened to the tapering pieces h h¹ which
rest on the rails a a¹ by the pieces i¹. In order to prevent the tapering pieces from
moving, the plates ppl are fastened to the other side of them, which fasten on to
the rail heads a a¹. A car coming in the direction of the arrow, fig. 3, is lifted by
means of the inclined pieces h h sufficiently high enough, so that the tire of the
wheels can pass over the rails a a¹ and passing over the rails c c¹ and b b₁, of the
crossing on to the side track 7 q'. When the wheel leaves the rail b, the tire runs
on the plate ftill it reaches the rail
It is not necessary, to remove the switches from the main rails when cars are
passing over the same, only the inclined pieces with the tongues c c are lifted
and brought into the position, as shown in the drawing fig. 3, by the dotted lines,
by means of the handles, and so the main rail left quite clear whilst the wheels
will only have to pass over the formed plates and are only lifted the thickness
of the metal.
To give the wheel a better base when crossing the rails a the crossing can be
arranged as shown in figs. 5, 6 & 7. In order that the tire of the wheels in passing
from the rail b to the rail g may be uninterrupted, there are three cornered iron-
plates kkriveted to the crossing, sufficiently thick to be level with the top of the
plate. In coming on to the main track from a side track, the wheel must be lifted
the height of the tire, which is done by the inclined pieces riveted on f, see fig. 6.
In order that the wheels may run as little as possible on the tire edges there can be
a piece of iron m riveted on the crossing point on f, level with top of the inclined
pieces and top of rail.
With rails with a rim there can be a guard rail s fastened on the sleeper d.

page_text: Figs. 8-9-10-11 & 12 sheet 2 show a form of hinge for laying over the main
track line, when the branch is being used; this hinge can be turned back (as shown
by the dotted lines in fig. 9) when it is required to leave the main line free.
The formed piece fig. 12, which is fastened to a plate which is hinged at a,
and when the piece 2 is laid over the rail a' it fills up the space between the rails b
and of the branch line.
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) A switch & crossing for field railways, consisting of the plates ff', which rest
on the sleepers d d¹ d² and lie over the main line and the hinged rails c c¹ h h¹ and
rails 6 6, substantially and for the purpose as described.
2) In crossings for field railways the hinged formed block, substantially and
for the purpose as described.
D 1: 1h 5th day of Santambar 1888