1822.] 
Cornbury ; and, on his death, to his 
sister Theodosia, which she conveyed 
in marriage to John Bligh, esq. and the 
whole became the property of Edward 
Bligh, second Earl of Darnley, in con- 
sequence of the purpose of allowing 
New Patents and Mechanical Inventions. 
143 
the claim of Mary Hornsby, a servant 
of Sir Joseph’s, a liberal allowance in 
lieu thereof, and herson, John Hornsby. 
Rathmere, in the county of Meath, 
is five miles from Trim, and twenty- 
six from Dublin. 
NEW PATENTS AND MECHANICAL INVENTIONS. 
—— 
To Jutivs GrirritH, Ese. Brompton 
Crescent, for Carriages to be propelled 
by Steam on Common Roads, and capa- 
ble of conveying Goods and Pas- 
sengers. 
HE ingenuity of man has already 
effected so many important im- 
provements, and the successful ap- 
plication of mechanical power has so 
advantageously contributed to the ge- 
neral good of society, that, to excite 
or deserve attention, something of 
unusual excellence must now be pre- 
sented to public observation. 
It has been frequently remarked, 
that one of the proudest triumphs of 
mechanics, would be the construction 
of machines adapted to the transport 
of goods, without the necessity of ani- 
mal labour, and various efforts have 
been made to accomplish this object. 
Until the present moment, however, 
those carriages which have depended 
upon mechanism, or upon mechanism 
and manual labour united, like Drax’s 
velocipede, or Birch’s bivector, have 
sustained but ashort-lived place in the 
admiration of their supporters; and 
those which have been propelled by 
steam, as Mr. Blenkensop’s, near 
Leeds, and others, have been confined 
to rail-ways, where, by indented 
wheels, or contrivances of a similar 
kind, sufficient resistance has been ob- 
tained to insure the progress of certain 
loads in straight directions. 
It seems to have remained for Mr. 
Griffith to introduce to the scientific 
and the commercial world, carriages 
which can be propelled by steam upon 
common roads, and employed for the 
common purposes of conveyance. 
It is owing to his steady and pa- 
tient perseverance, during several 
years, that this long solicited result 
promises soon to become a public be- 
nefit, and that the many important ad- 
vantages, branching into an almost 
infinity of directions, will be secured 
to the United Kingdom. 
Under the immediate inspection of 
Mr. Griffith, and according to his 
plans, with the assistance of Mr. 
Francis Bramah’s unremitted atten- 
tion, a carriage has been compleated 
at the Pimlico manufactory. It is 
twenty-seven feet in length, including 
seven feet for the fire, boiler, cylinders, 
and the mechanism connected with the 
driving-wheels. 
Instead of an axle-tree passing 
through both the front or both the 
hind-wheels, as is usual in other car- 
riages, the axis merely passes through 
the nave of each wheel sufficiently to 
support on each side uprights, which 
strengthen and connect the frame of 
the waggon. From the hind part of 
this frame, or bed, proceed two 
perches, inclining inwards until they 
meet: and, being joined a few feet be- 
fore they reach the front wheels, they 
form the bed of a revolving perch; this 
revolving perch is connected with the 
bed of the fore part of the carriage, or 
front wheels, and by its rotatory mo- 
tion, when either of the wheels is more 
elevated or depressed than the other, 
preserves the horizontal position of the 
carriage. 
The direction of the carriage is ef- 
fected by the action of a bevel pinion 
connected with a spindle, which is go- 
verned by the coachman; this pmion 
acts on a wheel, whose movements 
compel those of certain iron braces 
fixed to the exterior of the front 
wheels, which turn upon the same spot 
where they touch the ground ; so much 
power is gained by this pinion, that 
little force is required from the coach- 
man to produce the necessary di- 
rection. 
Amongst a variety of new modifica- 
tions of means already known, and 
which show that the utmost attention 
has been bestowed upon the present 
combination of mechanical and physi- 
cal powers, the following may deserve 
to be particularised as peculiar to 
Mr. Griffith’s steam-carriage. 
1st. The easy method of generating 
steam without danger of explosion ; and, 
after condensation, reproducing a consi- 
derable part of it for further use. 
This is effected according to Mr, 
Griffith’s 
