528 Report on the Trials of Implements at Oxford. 
ridging plough, which was highly commended. Shown by Southwell and Co., 
of Rugelcy. The mechanism by which the angle of the breasts is altered is 
simple — consisting of a shaft fixed on two uprights between the sole and beam, 
furnished with two arms, and working from a central rod by a universal joint. 
The ploughman acts by a handle and catch on the cross-bar, by which he caa 
fix the position of the mould-boards, rendering them rigid. 
Barrows and Stewart, of Banbury, was highly commended for a 4-wheeled 
windlass for steam cultivation, with one leverage for reversing the drums ; the 
same action that raises one drum lowers the other. This is effected by having 
the axles in two planes, connected by a crank. On the central frame, aud im- 
mediately below this crank, is a half circular rest, on which the crank travels. 
The shaft out of gear rests on the lower part of the circle, the shaft in gear 
occupies the u^iper portion, the lever handle being kept in position by a bolt. 
The windlass is carried on a strong oak frame ; the centre bearing having 
to sustain great weight, is braced by a T shaped iron girder, placed under 
the woodwork. The drums are supported by a double set of curved wrought- 
iron spokes. The spm- wheel, wliich is very strong, is bolted to the drum, and 
can be readily detached. Several of these windlasses are at work. The price, 
without ropes, is 75?. The merit of this arrangement consists in the saving 
of manual labour, one man being able to work both the windlass and engine. 
Thomas Baker, of Compton, Newbmy, showed a useful tumbler or tip- 
cart, suitable for removal of uightsoil, liquid manure, &c. The barrel is 
hung on the frame, Z\ inches behind the centre of the wheels. The frame 
is of H iron. The plates 5 inches deep, and rib IJ. The axle is turned and 
driven into a socket below the frame ; keyed through by a steel pin f thick, 
with a turned collar in front. The advantage of placing the barrel behind 
the wheels is, that the load on the horses back is reduced, the barrel acting 
as a counterbalance to the shafts. The arrangement for tipj^ing is simple 
and efBcieut. The wheels are fitted with iron naves and strong tires. 
Price 111. Highly commended. 
The Beverley Iron and Waggon Company were highly commended for a 
manual delivery reaping-machine, fitted with Norfolk's patent self-acting 
tipping platform. The dehvery is behind, by means of an ordinary hinged open 
platform ; but instead of being held up and let down by the workman's foot, 
Fig. 21. — NorfolFs Self-acting Apparatus for tipping platform of 
Manual Delivery Heaping Machine, No. 1513. 
A B 
A — Position of Cam when the platform is elevated. 
B. — Position of Cam when the platform is down. 
this is automatic by the following simple arrangement : — A crescent-shaped 
cam is driven direct from the driving-wheel, being alterable as to speed by 
change of cog-wheel ; this acts upon an iron half-circular upright attached 
to the platorm ; when the circurofereuce of the cam is in contact with the 
