4 Report on Miscellaneous Implements at Shrewsbury, 8fc. 
height (of which class Mons. Albaret's machine was the most 
typical), or merely delivered it on to the apron of the elevator. 
The second system dispensed with the fan-blast, and trusted 
either to the position of the travelling elevator to pick up the 
cut fodder, or the machine was provided with a horizontal 
travelling apron, upon which the cut material fell ; and which 
delivered it on to the elevator. Messrs. Richmond and 
Chandler's machine was of this latter class. 
Although the greater number of machines were provided 
with paddles cn the rim of the knife-wheel, the result of the 
trials showed that such machines take very much more power 
to drive than those without such blades. This is only what 
might have been expected when one considers the power which 
may be absorbed by working a fan for creating a current of 
air for ventilating purposes, or for stack-drying, as was shown at 
recent trials, and which would be considerably more than the 
power necessary to drive an ordinary elevator. In M. Albaret's 
machine the work absorbed by creating such a current of air 
as escaped from the top of his elevating-tube, in addition to 
lifting the cut material, was evidently very considerable. 
There is also the increased liability of the paddles carrying round 
the cut material at starting, and causing it to choke between 
the case of the machines and the paddles. This, in the trials 
of the machines, proved a most fruitful source of failure. 
The machines were driven by means of one of Messrs. Aveling 
and Porter's 8-horse power traction engines, which was kindly 
lent for the purpose. Between the engine and the machine under 
trial one of the Society's rotary dynamometers was interposed, sa 
that the power necessary to work each machine might be tested. 
This, however, was not found to be so easy as might have been 
expected in the first instance, as many of the machines, when 
they began to choke, not only absorbed more power than the 
dynamometer would indicate, but at times pulled up the engine. 
As a consequence the readings are very variable. Takings the 
general performance of the machines, Messrs. Richmond and 
Chandler's certainly proved itself the best. At starting in the 
first trial they met with an accident to their elevator ; but as 
this accident arose from a cause outside of the machine, it was 
decided by the Judges to allow it to compete after repairs had 
been effected. 
The details of the gearing, feed, and knives of the machine. 
No. 1630, were generally the same as in the chaff-cutter entered 
by the same makers for the trials at Oxford, which there was 
awarded the first prize, and which is fully described and illustrated 
in the Society's 'Journal,' vol. ri. pt. 2, pages 480, 481, and 482, 
and the present machine fully maintained the repute gained at 
