Uxhibited at Windsor. 
511 
also coiTespoiuling witli its divisions, is moved until the beam 
attains a true balance. The ticket being inserted in a small slot 
in the larger slide, a handle underneath is pulled, and the card 
pressed against the figures, which mark upon it the weight, 
thus : — 
Tons 
Cwts. 
Qrs. 
Lbs. 
PATENT SELF-REGISTERING 'ft'EIGHBRIDGK 
(Chamerov's Patent, Paris). W. i T. AVERl', 
BIRJIINGHAM, Sole Makers. 
17 
13 
2 
14 ' 
Gross 
Tare 
Net ; 
3 
5 
1 
14 
One of the principal advantages of this is, that as the 
machine itself records the weight wpon the ticket, all mistakes 
Fig. 6. — Avery's Step! yard. 
in reading the weight are entirely prevented, and duplicate or 
triplicate records can be taken of the weight at the time of weigh- 
ing. The cattle weighbridge to which this steelyard was fitted 
(Art. 3348) was one of Messrs. Avery's well-known self-contained 
machines, suitable for markets and fairs, with a cast-iron frame, 
with platform 12 feet by 9 feet, fitted with strong wrought-iron 
pen for weighing cattle, which is removable for weighing wag- 
gons, &c. 
Messrs. Henry Poole;/ (£• Son. of Liverpool, received a Silver 
Medal for their Patent Self-contained Weighbridge (Art. 3362), 
the chief features of which are that it is a self-contained road 
waggon weighbridge,- having the main underneath levers sus- 
pended from a structure composed of girders united at the angles 
in a novel way, so as to guard against irregular settlements even 
in defective foundations. The walls of the pit are virtually of 
cast-iron. The under levers are two only, having their knife- 
edged centres aiTanged in parallel planes. ' They are freely sus- 
pended in links which are " dirt guarded,"' to prevent mud and 
