IMPROVEMENTS IN RAILWAY WAGONS, PIT CORVES, AND OTHER SIMILAR VEHICLES
Year: 1876

page_text: LETTERS PATENT to George Ellis Chapman and Joseph Orgill Carr, both of
Barnsley, in the County of York, for the Invention of "IMPROVEMENTS IN
RAILWAY WAGONS, PIT CORVES, AND OTHER SIMILAR VEHICLES.”
aled the 27th April 1877, and dated the 1st November 1876.
PROVISIONAL SPECIFICATION left by the said George Ellis Chapman and
Joseph Orgill Carr at the Office of the Commissioners of Patents on the
1st November 1876.
GEORGE ELLIS CHAPMAN and JOSEPH ORGILL CARR, both of Barnsley, in the
County of York. IMPROVEMENTS IN RAILWAY WAGONS, PIT CORVES, AND OTHER
SIMILAR VEHICLES."
Our Invention relates to improvements in the construction of or capable of being.
adapted to railway wagons, trucks employed in pits, and other like vehicles, whereby
the discharge of their contents is greatly facilitated, and it consists in forming the
bottom of the vehicle in two parts, each mounted so as to be capable of turning
upon a separate swivel or shaft, but arranged in such a manner that by the aid of
cranks connected to segmental racks operated by pinions both parts or semi-bottoms
simultaneously shall be caused to diverge from the centre downwards for the
discharge of the contents of the vehicle or to converge upwards in order to close the
bottom for the reception of another charge. The semi-bottoms are provided with
hinged extension pieces at their outer ends which turn up when the bottom is
brought into its normal horizontal position.
Wagons of the ordinary description which are constructed with a bean across the
centre may also be readily modified in accordance with our Invention, so that when
the ordinary side doors are opened and, say, a considerable portion of the load is
discharged, the semi-bottoms will tip and shoot the remainder.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said George Ellis Chapman and Joseph Orgill Carr in the Great Seal
Patent Office on the 1st May 1877.
GEORGE ELLIS CHAPMAN, of Barnsley, in the County of York.
IN RAILWAY WAGONS, PIT CORVES, AND OTHER SIMILAR VEHICLES."
[Price 4d.]
"IMPROVEMENTS

page_text: The said Invention relates to improvements in the construction of or capable of
being adapted to railway wagons, trucks employed in pits, and other like vehicles,
and has for its object combining the advantages of the increased capacity of
rectangular vehicles with the facilities for the discharge of their contents obtained
in what are known as hopper wagons.
In carrying out the said Invention in order to effect this object the vehicle is con-
structed and arranged in the manner herein-after described, reference being had to
the accompanying Drawing, which represents a half side elevation and half longitu-
dinal section of a railway wagon with the improvements which form the subject of
the said Invention applied thereto.
The body of the wagon is composed of sides A, ends B, B, and a bottom C, which
latter is fitted with binged flaps D which may be of any usual or suitable construc-
tion, or the wagon may be provided with any other ordinary doors or flaps for the
discharge of its contents.
The Invention consists in the addition thereto of the following parts whereby the
operation of discharging the contents of the vehicle is facilitated.
To the upper extremities of the ends B there are hinged or jointed at a extension
pieces or flaps E, E, each formed in two parts b, b¹, connected together by pins c
extending through slots d in the sides A of the vehicle. These extension pieces or
flaps are also connected at the point of junction c of their two parts b, b¹, to links F, F,
carried by wheels or rollers G, G, which are fitted so as to be free to travel along
tracks or guide bars H, H, attached to the side frames I of the vehicle. This
travelling motion is obtained by means of screws K operated by worms and worm
wheels L which screws transmit motion to nuts M, M, connected by links N, N, to
the wheels or rollers G, G, whereby the extension pieces or flaps E, E, are moved
from the position shewn with reference to one of the extension pieces or flaps viz.,
that on the right hand side of the Figure by dotted lines into the position indicated
with reference to the same extension piece or flap by full lines on the same side of
the Figure. For example, when the wagon is loaded the extension pieces or
flaps E, E, occupy the said dotted position and the hinged flaps D are closed; when
however, it is required to empty the vehicle the hinged flaps D are opened so as to
discharge as much of its contents as can find egress through the opening thus formed,
after which the extension pieces or flaps E, E, are moved by the means herein-before
described into their extended position as indicated with reference to one of them by
the full lines on the right hand side of the Figure whereby the remaining contents
are ejected from the vehicle.
If desired the ordinary wagon ends B, B, may be dispensed with, the portions b, b,
of the hinged extension pieces or flaps D, E, forming movable ends thereto. The
extension pieces or flaps E, E, may also be arranged to open or extend outwards
when the construction of the vehicle renders this arrangement necessary.
Having now described and particularly ascertained the nature of the said
Invention, and the manner in which the same is or may be used or carried into
effect, I would observe in conclusion that what I consider to be novel and original,
and therefore claim as the Invention secured by the herein-before in part recited
Letters Patent is the employment of hinged or jointed extension pieces or flaps
arranged and operating substantially as and for the purposes herein-before
described.
In witness whereof, I, the said George Ellis Chapman have to this my
Specification, set my hand and seal this Thirtieth day of April, One
GEORGE ELLIS CHAPMAN. (L.S.)