Improvements in Apparatus for Tipping Coal and other Waggons.
Year: 1892

page_text: Date of Application, 29th Feb., 1892-Accepted, 2nd Apr., 1892
COMPLETE SPECIFICATION.
Improvements in Apparatus for Tipping Coal and other Waggons.
We, JOHN HEATH, Colliery Manager, of Sneyd Colliery, Burslem, Stafford-
shire, and BENJAMIN WOODWORTH, of No. 34, Grove Road, Fenton, North
Staffordshire, 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 :-
-
Our invention relates to automatic apparatus for tipping coal and other waggons,
as we shall describe referring to the accompanying drawings, Figs. 1 and 2 which
are sections partly in elevation shewing the apparatus in two conditions of its
parts, Fig. 1. representing these while the platform is stationary allowing one
waggon to be run off and another to be run on, and Fig. 2 representing the parts
when a loaded waggon is locked on the platform and the tipping frame is put in
gear with the driving mechanism ready to revolve in the direction of the arrow,
thus not only tipping but also completely inverting the waggon and bringing it
back empty to the position ready to be run off the platform. It is to be
understood that the locking gear shewn on the platform P is substantially the
same as that described in Woodworth's Specification No. 20,458 of 1890, and is
not intended to be claimed herein except in combination with the other parts of
the apparatus now about to be described.
The framing consists of two wheels F between which is fixed the platform P
having on it suitable rails to receive the trucks. On the same axis as that on
which the wheels F are mounted free to turn, a toothed wheel W is kept
continuously revolving by any suitable motor. In a casing C fixed on one of the
wheels F is fitted a slide S having several teeth which are urged into gear with
those of the wheel W as shewn in Fig. 2 by a spring acting on a three armed lever A
and thereby moving a lever B passing through a slot in the slide S. Fixed on the
ground by the side of the wheel F is a frame having mounted in it a lever Land
sliding stop M which is urged forwards by a spring acting on the lever L.
When
the frame F turns so far round as to bring one arm of the lever A on to the
stop M the slide S is drawn out of gear with W and the frame is stopped the
platform P being then in its level position so that a waggon can be run off from
it and another waggon can be run on to it. At the same time one arm D of a bell
crank lever having just passed a fixed stud or projection E, the slide II on the
platform P has been pushed into the position shewn in Fig. 1 raising the lower end
and consequently lowering the upper end of the catch lever H and so allowing the
waggon axle a and afterwards a² to pass it as the one waggon is run off the
platform and the other run on. But by the running on of the second waggon its
fore axle, before attaining the position a', passes the star wheel K and turns it one
tooth round thus causing a cam tooth on K to act on the lip of the slide H
drawing it to the position shewn in Fig. 2 whereupon the lower end of the catch
lever H being the heavier descends into the slot of H and its upper end presents
itself as a stop to the axle holding it in the position a'. Instead of loading the end
of H it may be urged down by a spring. The other stop lever H is held up as
a pawl by a spring h, which yields to allow the axle of the entering waggon to
pass it and then springs up as a stop behind it. The star wheel K has four teeth
acted on by the axles but only two teeth to act on the slide H so that the axle
which is the last of the passing off waggon, though it turns it one tooth does not
cause movement of the slide H.
A waggon having been brought on to the platform P with its axles a' a' held
between the stops ' H2 and its wheels held under the flange of a girder N fixed
on each of the frames Findicated bv dotted lines, the lever L is pulled back as

page_text: shewn in Fig. 2, whereupon the slide S is caused by the spring acting on the
lever A to advance into gear with the teeth of W. The frame F and platform I'
with the waggon on it are thus caused to revolve in the direction of the arrow,
the waggon being thus: tipped and inverted, until the parts return to the condition
shewn in Fig. 1 when the exchange of waggons can be made as above described.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. In apparatus for tipping waggons the combination of a continuously rotating
wheel with a tipping frame and platform provided with apparatus for engaging
with or disengaging from the rotating wheel, the disengagement being effected at
each revolution by a spring lever stop, substantially as described..
2. In combination with the tipping frame above referred to, the platform
provided with. catch and stop levers arranged and operating, substantially as
described.
Dated this 29th day of February 1899
ABEL & IMRAY,
Agents for the Applicants.