Trials of Implements at Carlisle. 
G63 
ing out any dirt that may have accumulated there. This is an 
important improvement, and effectually remedies a hitherto 
existing fault. Motion is communicated to the cups by means 
of the well-known Ewart's detachable drive-chain, and there 
is also an adjustment for properly balancing the machine 
when going up- or down-hill. The seed can also be dropped 
at three different distances apart by a very simple arrangement 
of chanere wheels. The machines are made either double or 
single. 
No. 2503. John Croivley and Co., Sheffield — a Silver Medal for 
their new Horse-gear, the novelty of the principle being a step 
in the right direction, viz., in having the large wheel fixed and 
forming the main base to the machine, instead of revolving as 
usually is the case. The shafting can be led off at different 
angles, or three shafts can be driven as required. The machine 
Fig. 4. — View of Messrs. Crowley and Co.'s Horse-gear. 
was tested on the dynamometer, and though only for one horse, 
stood the test of transmitting four-horse work, and gave out 
good duty. There was no proof of any more economical trans- 
mission of the power over other good horse-gears, but the pro- 
portions, principle, and workmanship were decidedly good. 
No. 2871. Barford and Perkins'' self-acting arrangement for 
lifting steam cultivators, drags, or other similar implements, 
stands next on the list, and well deserved the honour of the 
medal it gained. It is of great importance in the roundabout 
system to be able to lift the implement just before the end of 
the pull, so that when the anchor moves on, the engine shall not 
have to pull both it and the cultivator at the same time. Other 
means are used to obtain this result, which will be described in 
their place ; but none are so simple or mechanical as this one. 
On the boss of the cultivator wheels is a ratchet with 8 teeth ; 
the axle is cranked as in other lifting cultivators, and on the 
cranked part is carried, in bearings, a shaft on which are two 
double cams, each with five teeth on either part ; these, by a 
simple movement of the foot, gear into the ratchet-wheels, and 
