ExhiUtdd at Windsor. 587 
ttnb edged, in the same manner as on a smaller emery wheel. 
The machine appeared simple and effective. 
Fig. 22. — Cotlrell's Itn2)roved Laion Mower Grinder. 
Mr. John Gregory, of Newcastle-on-Tyne, exhibited (Art. 
4367) the Potato Raiser, which gained the first prize in the trials 
at Newcastle, in October 1887. 
In the report upon that trial (Journal, Vol. XXIV. p. 222) 
it is fully described, and the following remark appended : — " The 
best work was, of course, made where the haulm had been re- 
moved — indeed, implements of this sort are not capable of deal- 
ing with very luxuriant tops, as the latter are apt to clog between 
the bars and the underside of the beam ; but, as there is a fair 
.amount of space in this machine, it did quite as good work as 
could be expected." Mr. Gregory claims now to have overcome 
the diflSculty named. He has done away with the hind upright 
of the main frame, and thus with the danger of clogging referred 
to, and has affixed to the end of each prong of the front raiser a 
chain, which clears the potatoes of soil, and more effectually 
leaves them upon the surface. 
The Hardy Patent Pick Co., Sheffield, again exhibited their 
Disintegrator (Art. 4410), which was described in the report upon 
the implements at Nottingham (p. 110 of the present volume), 
and was then recommended for trial at the Windsor Meeting. 
Mr. J. H. Carter, of Mark Lane, London, also exhibited as a 
new implement a patent disintegrator for general grinding j)ur- 
poses (Art. 5420). 
It having been resolved by the Council of the Royal Agri- 
