Report on Miscelldneoiis Implemenis at Newcastle. 209 
adjustable and self-cleaning corn 
screens of the flat type, a plan 
which was tried and highly spoken 
of by the Judges at that show. 
Only two years later, Messrs. 
Penney and Company appear with 
an entirely different but, appa- 
rently, equally effective method 
of obtaining the same results, ap- 
plicable whether to flat or rotary 
corn screens. 
The screening wires are of rect- 
angular section, and are laced on to 
cross rods by spiral springs, which not 
only hold the wires down but also tend 
to push them apart. The sides of the 
screen (or the ends if it be the cylin- 
drical form) can be moved nearer to- 
gether or farther apart by screws, and 
when this is done the wires accommo- 
date themselves to the change, crowd- 
ing together or spreading, as the case 
may be, the spaces between them being 
uniform over the entire riddle. In a 
shaking screen the spiral springs clear 
out, at each reciprocation, all the grain 
which has been caught between the bars. 
Tlie Anti-Friction Conveyor 
Company^ of Mark Lane, London, 
exhibited a new " Conveyor " 
(Art. 2847) for moving grain, 
meal, &c., in any desired direction, 
whether vertical, horizontal, or 
otherwise. The woodcut (fig. 10) 
clearly illustrates this somewhat 
remarkable invention. 
Screw conveyors for com and 
meal have long been employed in 
mills, but the thread of the screw 
has always been of a disc-like 
character. In the present inven- 
tion the place of this disc-like 
screw is taken by a mere spiral 
of wire, which is quite as efiicient 
as its heavier and more expensive 
forerunner for the transport of 
grain and meal, whether through 
vertical, inclined, or horizontal 
VOL. XXIV. — S, S. 
