734 Report on the Exhibition of Implements, 
apparatus is so constructed that the operation of raising or 
lowering the trough, or of adjusting it laterally, can proceed 
whilst the elevator is in motion. It will be seen bv reference to 
Fig. 28, that a table or platform is attached to the main frame of 
the threshing-machine. The upper portion of this table is 
mounted, so as to be capable of rotation, or partial rotation, on 
a pivot. The lower end of the elevating trough is hinged to 
the upper portion of the platform in such a manner that the 
trough can be raised or lowered, the means of actuating the 
trough being a crane or winch fixed to the upper frame of the 
threshing-machine, with suitable pulleys, over which a rope or 
chain, wound at one end on the drum of the crane, and attached 
at its other end to other ropes or chains attached to the de- 
livery-end of the trough. The rotation of the elevator is effected 
by means of a worm and worm-wheel. The endless web and 
chain of the elevator are driven by a pair of spur-wheels on the 
end of an upright shaft, to which motion is communicated by 
pulleys and belts from the threshing-machine, the arrangement 
being well shown in Fig. 28. In order to ensure stability in any- 
required position, adjustable props may be used, one of which is 
shown in Fig. 28. In order to facilitate the packing up of the 
elevatinsr trough the sides are detachable. The reg-ulations of 
the Society preclude the awarding of medals without an ade- 
quate trial, for which there was no opportunity at Kilburn, 
otherwise I think the merits of this invention or combination 
might have justified such a distinction. The advantages claimed 
bv the patentees are: — 1. Saving of labour, inasmuch as the 
straw can be delivered in any position, or waggons may be loaded 
without stopping the machine. 2. Saving of time in starting 
machinery, as there is no time spent in fixing and setting the 
elevator. 3. Saving of power, owing to a peculiar arrange- 
ment of the prongs or tines, which are separately attached to 
each belt. 4. Saving of horse-power in removing from place to 
place, and of an extra attendant. The additional weight of the 
attached elevator is under half a ton, whereas an ordinary, ele- 
vator weighs from 25 to 30 cwt. 5. Equal advantage when the 
implement is drawn by a traction-engine. G. Greater facilities 
for workinjf in a barn. 7. Saving: of shed-room when stored. 
The price of the elevator varies from 40Z. to 45/., according 
as it is attached to medium or large-sized machines. Its addi- 
tion to old machines of Messrs. Xaldcrs' make involves an 
additional charge of 5/. 
Messrs. Christy and Co.'s incubator has been already noticed. 
