Improvements in Apparatus for Working Railway Switches.
Year: 1885

page_text: Improvements in Apparatus for Working Railway Switches.
We, EDWIN WALKER and JOSEPH HALL WALKER Engineers & Ironfounders
Old Effingham Foundry Rotherham Yorkshire do hereby declare the nature of our
invention for "IMPROVEMENTS IN APPARATUS FOR WORKING RAILWAY SWITCHES
to be as follows:-
"
A running switch box for a trail point or three throw worked by means of a
weighted lever moving a bevilled geared tumbler working into a wheel with
bevilled and spur gearing which moves the switch rail from either side.
EDWIN WALKER.
JOSEPH HALL WALKER.
Improvements in Apparatus for Working Railway Switches.
"
We EDWIN WALKER, and JOSEPH HALL WALKER Old Effingham Foundry,
Rotherham Yorkshire, Engineers and Ironfounders do hereby declare the nature of
our invention for "IMPROVEMENTS IN APPARATUS FOR WORKING RAILWAY SWITCHES
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement, that is to say :—
Our invention relates to an improved construction of double or single railway
running switch box, the object being to reduce the number of movable working
parts of such apparatus, thereby reducing the wear and tear and rendering the
working reliable and easy.

page_text: It consists chiefly in actuating the horizontal bar in conjunction with the switch
rail by means of spur and bevel gearing, instead of the usual method of bell crank
levers.
And in order that our invention may be clearly understood we annex a sheet of
drawings, representing a switch box made according to our invention.
Fig. 1, shows the interior of the box with the cover removed.
Fig. 2, is the cover.
In carrying out our invention we make a suitably shaped metal case or frame A,
which may be entirely closed by the lid or cover B, with the exception of the
slot C, for the handle or lever D, to work in; so that the working parts are
protected from the weather.
The horizontal bar E, which we fix at one side of the case or frame A, and which
projects from one or both sides, has a projecting tooth F, such as is used in spur
gearing.
In the middle of the casing we fix upon a centre pin G, a casting H, having a
recess or space I, to correspond with and engage the beforementioned tooth on the
horizontal bar E.
Upon the casting H, and at right angles or thereabouts to the said tooth, there is
a vertical tooth J, such as is used in bevel gearing, corresponding and engaging
with a space K, in a vertically placed tumbler L, which can rotate upon its axis M,
fixed to the side of the case. The tumbler is made with recesses to receive the end
of the hand lever D, by which the apparatus is worked, and which is provided with
the usual weight to retain the switch in its closed or open position.
Thus the movement of the lever D, from one side to the other will cause the
toothed gearing as described to move the horizontal bar in either direction as
desired, and will retain it in an open or closed position.
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 :-
In the manufacture and construction of Switch boxes for Railways, the arrange-
ment and use of spur and bevel gearing, (consisting of one or more teeth and their
corresponding spaces) substantially as herein before described and as illustrated.
Dated the 10th day of March 1886.