324 Description of a Carriage-W heel Guard. 
done me the honour to affix their names in testimony of its 
utility. 
JosEPH ANDREWs, Cuarves Dunpas, 
WiiiramM Hatvert, Joun Disney, Jun. 
James Crort, ANTHONY Bacon, 
JoHNn WELLs, Francis 8. 8TEap. 
RicHarD BoucHeEr, 
Reference to the Engraving of Mr. Joun Papsury’s Guard for 
a Carriage-Wheel, by which the Wheel is retained safe upon 
the Axle, in case of the Linch-pin coming out. Plate V.fig. 4,5. 
This contrivance can be applied to any carriage, as it does not 
require any part of the carriage, or axle-tree, to be altered, - 
further than the addition of an extra iron hoop upon the inner 
end of the nave of the wheel. 
This is fully explained by figs. 4 and 5, Plate V, the former 
being a section, lengthways, of the axletree, and the latter a 
transverse section; AA represents the iron axletree of a carriage, 
bolted beneath the wooden bed BB, or frame, of the carriage ; 
CC is the wheel ; DD its nave, the axletree box dd being fitted 
through the centre of it as usual; a is the linch-pin, passing 
through a mortice in the end of the axletree; EE is a circular 
’ box, fastened to the bed BB of the carriage, and surrounding the 
inner end of the nave of the wheel, to prevent dirt from getting 
into the axlétree; the extra hoop, before mentioned, which is 
fixed on the end of the nave, is contained within this box, and 
runs round without touehing it; it consists of a strong hoop ld, 
fixed fast upon the have, and having a fiat circular ring, formed 
out of the same piece with it: the latter, when fixed, makes a 
circular projecting rim, upon the end of the nave, as the figure 
plainly shows. 
The same clasp band F, which, by means of two nuts beneath, 
fastens the axletree AA to the bed of the carriage, also fastens 
down a piece of iron G, upon the bed B; in the extremity of 
this piece of iron is a hole for the reception of a screw e, the 
point of which enters within the box EE, and comes before the 
projecting ring 0), so as to effectually prevent the wheel from 
coming-off its axle, even if the lincli-pim should by accident drop 
out: the point of the pin e is so situated as not to come in con- 
tact with the plate )4, when the linch-pin is in its place; there- 
fore it occasions no friction to retardthe motion of the carriage. 
When it is required to take off the wheel, for the purpose of | 
repairs, or for greasing the axletree, the screw e is taken out, 
and the linch-pin being removed, the wheel can be taken off. 
In the xxviith volume of the Society’s Transactions, at p. 147, 
will be found a description of an invetition, by Mr. J. Varty, of 
mat Liverpool, 
