Chatham Historic Dockyard Railway
Four Wheeled Coal Wagon

This type of four-wheeled wagon was designed for the carriage of coal and was made mainly of wrought iron.

As with other the other four-wheeled wagons, diagonally opposite wheels were loose on the axle and the wheels 2ft 6 l/2in wheelbase and axles were the same as for the turntable. wagon pre"iousJy described.

The capacity of these wagons was approximately 1 ton and their overall length was 7ft lOin, width 3ft 8in and height 4ft 4in.

These wagons were of the dropside variety and their main frames consisted of O.375in thick, 3in angle iron with a downward 90 degree mitre at each end, these end portions were strengthened with triangular gussets, once again of 0.375in thick wrought iron and the buffer plates were of the same material, these last mentioned items were continued at each end beyond the basic chassis width to finish with ends in the form of circular arcs.

Two O.625in bolts at each end secured a single buffer to each buffer plate, this single buffer was made of English elm in the form of a segment, 3ft 8in wide and 4.112in long in the middle. When required, the towbar was passed though the aperture in the buffer and buffer plate and its end engaged in a suitable bole in an angle iron section projecting 4in towards the middle of the wagon and 2.1/2in deep.

When required, the towbar was passed though the aperture in the buffer and buffer plate and its end engaged in a suitable bole in an angle iron s('di.on, projecting 4in towards the middle of the wagon and 2.112in deep.

The towbars for inter-wagon coupling of this type of wagon was merely 1.1/2in diameter iron bars approximately 1ft 4.1I2in long with their ends bent downwards at 90 degrees, these simply rested in place under their own weight.

The axle boxes were of cast iron and were affixed to the main frames by means of three 3/4in diameter bolts per bearing.

The main frame rivets were 1I2in diameter and other rivets were O.375in diameter.

Regarding the body of this type of wagon, the bottom plate was 1/4in thick and the sides and ends were O.125in thick, with the uppermost outside edges bordered by arc section beading 1.1/4in deep and 3/4in maximum thickness .

.Further support was given to the ends of the body by means of two angle irons at each end secured to the end sheet and to the bottom plate, these angle irons were of the same material as the main frames, but with their longitudinal faces tapering down towards the top.

.Each body side plate was fitted with three hinges, these were also secured to underside of the bottom plate, which overhung the bottom of the body at both the sides and the ends,the hinges tapered towards the top [from 3in to 2in] and were 1/4in thick, each being secured by five rivets O.375in diameter.

The hinge bolts were 0.625in diameter and each was secured to the bottom plate by means of two l/2in diameter rivets, the diameter of the main locking studs at the four uppermost cornel'S was 1.1!4in and the sides were normally held in place by pins passing through these studs.

The tare weight of this design of coal wagon was 1,631 Lbs.

In addition, there was another design of iron coal wagon with similar chassis arrangements to the one which has just been described, but with a smaller body which was 6ft 3in long, 3ft wide and 1ft 8.l/2in deep.

Images



©
Website Design & Hosting by MANS Data Services Ltd | © CHDR 2011