1809.) 
simple ah operation the apparatus is very 
complicated : thus, in describing the 
fifth figure, which represents a_ front 
view of the lock of the cock (which, 
however, besides answering thé ordynary 
purpose of the locking, also locks it to 
, the barrel), we have a lever, a staple, a 
hook acting upon a centre, a spring, and 
@ stop acting with another spring: be- 
sides the place for the introduction of 
the key, which, we learn, is to be 
“raised on its. centre, so as to pass 
clear of the work in the lock, except 
coming in contact with the hook and stop, 
which rise a little higher than the other _ 
parts, and are opposed to thekey. Now, 
when the key is turned in the direction 
of thedotted arch, and the hook pressed 
out of the staple by it, raise the lever, and 
the staple, being a fixture, or part of it, 
will be raised also, at which time the in- 
Rer part of the staple which pressed down 
the ward, being likewise raised, the stop 
will rise out of the arch, and’ prevent 
the key from being taken out till the sta- 
ple is returned into the lock, the object of 
which is to prevent the cock from being 
left. unlocked.”—This may be regarded 
as a fair specimen of the specification, 
but the nature of the invention can only 
be understood by referring to the docu- 
ment itself, and by examining every part 
of it, with the figures attached to it. 
Sea R 
MR. EDWARD STRACEY’S (WESTMINSTER), 
Jor an Improved Method of hanging the 
Bodies, and of constructing the Perches, 
of fourswheel Carriages, by which 
such Carriages are rendered less liable 
to be overturned. 
This invention embraces four ob- 
_ \jects-—-1. The constructing of the 
perch of a four-wheeled carriage, in such 
a manner, that either of the axle-trees 
may have a vertical motion independent 
of the other; so that the axle-trees may 
bein different planes at the same time. 
2. The hanging of the body on the springs 
of such a carriage, in such a manner as 
will tend not only to diminish the liabi- 
lity of its being overturned, but add also 
to the ease of its motion. 3. The form- 
ing a_collar-brace, which shall almost 
immediately bring the body to an equili- 
brium, should the centre of gravity be 
moved. 4. The forming a perch-bolt, by 
the use of which the carriage may be 
more easily turned to the right or left, 
and the friction that now takes place, by 
‘the use of the common perch-bolts be- 
tween the wheel plates, the transom bed, 
New Patents lately enrolled, 
-quity from the plane of the horizon. 
oil 
and the fore axle-tree bed reduced als 
most to nothing. Hie 
Carriages constructed on this principle 
differ but little in appearance from other 
four-wheel carriages; the chief distinctiom 
lying in the construction of the perch, 
and its having a revolving motion, and in 
the hanging of the body on the springs. 
The perch being allowed to turn on its 
axis, the fore axle-tree bed may have 
any degree of obliquity required, pro- 
vided the body is not hung on the car- 
riage, without affecting the horizontality 
of the hind axle-tree bed, and vice 
versa; and it is by the instrumentality of 
this motion, co-operating with the mode 
of hanging the body on the springs, and. 
by the aid of collar-braces, that the 
body of the carriage may be kept nearly 
on the true level, or at least sufficieatly 
so to prevent its being overturned, ale 
though either the fore or the hind axle= 
tree may have a great degree of obli- 
A 
similar effect and security may be ob- 
tained by inverting.the construction of 
the’ perch, and by having the fixed part 
of the perch in the hind axle-tree bed, 
and the revolving part in the transom bed 
in front, or by making the perch revelve 
on an axis at each end, or by any other 
mode which will allow the hind and fore 
axle-tree beds, when connected by 
means of a perch, to be in different 
planes at one and the same time, as by 
permitting one axle tree bed, provided 
that the body is not hung on the car~ 
riage, to rémain parallel to the plane of | 
the horizon, and by making the other 
stand perpendicular to it. , 
_ The principal variation.of this inven. 
tion, from the common method of hang- 
ing the body on its springs, consists. in 
the body-loops, which must be so ex- 
tended, that the ends of them may come 
nearly underthe shackles of their respec- 
tive springs, and each of them so formed, 
as to end in acylindrical axis of one to 
two inches or more in length, and of suf- 
ficient strength to support the body ; and 
on each of these body loop-ases, a shackle, 
for the reception of one of the main 
braces, should be fitted, ending in a cy- 
jindrical box er rocket, madé so as to 
work and turn on the axis of the body 
loop, and secured to it by a nut and pu; 
and the connection between these 
shackles and: their respective, boxe 
should be by means of a strong joiat, 
working towards the front'and bind part 
of the carriage in the direction. of the 
perch, 
‘ 
