1803. ] 
MR. RICHARD POTTINGER’S, (EALING, 
MIDDLESEX,) for a2 ENGINE and AP- 
PARATUS by which Perfons riding in 
Carriages may, on Occafions of Danger, 
liberate themfelves, and efcape impends 
ing Mifchief, by FREEING the HORSE 
or HORSES inftanlly fromthe CARRIAGE} 
and in cafe of two-wheel Carriages, 
by caufing them to ftand in the fame ho- 
rizontal Pofition as they were before the 
Horfe or Horfes were freed from them, 
by the Carriages flopping in the Space of 
a few Yards, without any violent Con- 
euffion, or Danger of overturning the 
Perfon in the Carriage, who may fit the 
whole Time with perfed Eafe and Safe- 
ty. 
This invention is thus defcribed :— 
Fora curricle, the iplinter-bar to be made 
of the beft-feafoned afh, with an holiow 
funk in the back of it to receive an iron 
fhaft, or fpindle, of about haif.an inch in 
diameter, in two lengths, to which muft 
be fixed four iron hooks, one at thé end of 
each fhaft, to move ina circular pofition ; 
alfo an iron lever, with two flanches, one 
of which is fixed to each fhaft by nuts and ° 
fcrews. That part of the engine which 
fails to the ground, in order to affift in 
fupporting and flopping the carriage, is 
calied the anchor, and is fixed to the axle- 
tree by two couplings fcrewed to it, at 
about eighteen inches afunder, or nine 
inches from the centre of the axletree, pro- 
jecting about one inch from it, with a 
fmall hole in it fufficient to admit an iron 
‘pin, which, pafling through the two iron 
flanches attached to the anchor, as well 
as through the couplings, the anchor by 
that means moves from the centre of the 
pinat the axletree, the Jever refting on the 
anchor, as it may be inclofed in a groove 
made to receive iton the upper fide of the 
faid anchor, or the lever may be fo ton- 
ftru&ted as to lie on each fide of the an- 
chor, and be fupported by fimall boits, or 
rollers, toreftonit. In either cafe, when 
the engine is raifed up as high as the car- 
riage will admit of, itis fixed in that po- 
fition by a fpring-bolt, from which there 
muft be a fmall leather-frap conveyed in- 
to the carriage. By a flight puil of the 
faid ftrap, on the approach of danger, the 
anchor falls, and, together wih the lever, 
ftop and fupport the carriage. This 
movement of the lever turns the hooks 
~which are annexed to the iron-fhaft in the 
fplinter-bar, and frees them from the 
fhackles, or rollers, to which the traces are 
joined. The anchor may be provided with 
a roller, or two rollers, one on each fide of 
it in the front end, that as it falls te the 
Monrurix Mac, No. 105. 
New Patents lately enrolled. 
15S 
ground it will not flop the carriage too 
fuddenly. The horfes are.thus capable - 
of being freed from the carriage, excepting, 
as to the conneétion with the pole, it be- 
comes neceffary that in the fame infant 
they fhall be free from the pole allo ; for 
which purpofe there muft be provided a 
leather ‘or iron focket to receive the end 
of the pole, to which the fraps mult be 
fixed ; and likewifea thin iron plate to go 
from the faid focket on the under-hde of 
the pole, to which the bar is fixed, by 
other leather-work, for fupporting the 
carriage. At that end of the plate mut 
be a mortife to admit the trigger 3 whicis 
trigger is acted upon by means of a {mall 
iror-rod paffing from it in a groove on the 
under-fide of the pole, and connected with 
‘the lever ; the movement of which either 
fixes the horfes to the pole, or occaficns 
their being liberated at the moment the 
traces are freed from the fplinter-bar. 
For a one-horfe-chaife the principle and 
apparatus will be the fame as the curricle, 
with the exception of the iron-fhaft, which 
may work in boxes in front of the bar, or 
at the back of it, as defcvibed with regard 
to the curricle. | 
For four-wheel carriages the apparatus 
muft be the fame as that for the curricle, 
except the fixing the anchor, which muft 
be fixed to the hind axletree or perch ; by 
which means the moment it falls to the 
ground it fteadies the carriage, and pre- 
vents its turning out of the road. It like- 
wife, by means of the two iron flukes at- 
tached tothe anchor, will infure the car- 
riage to ftop in afew yards. 
MR. JOSEPH JACoB’s, (sOHO,) for aucw 
METAL BOX for the AXLETREES of 
WHEEL-CARRIAGES,MILLS, ENGINES, 
and other Machines. 
The metal of which this box is made 
confifts of a bar, or plate, of feel, half an 
inch thick, more or lefs, which is welded 
cna fimilar bar, or plate of iron, an inch 
thick: the ironand fleel being fo united, 
is then paffed between the rollers of a flat- 
ting-mill and reduced to the thicknefs re- 
guued. The metal, thus prepared, is 
made into boxes of all defcriptions for the 
above-mentioned purpofe, with the fieel 
fide inwards. The form or fhape of axle- 
tree boxes vary, but the ends of all are 
alike, except in their dimenfions. , 
The box may be wholly made of feel, - 
though the inner-furface only, which is 
the wearing part of the box, being fteel, 
is fufficient for every purpof:, and, upon 
the whole, the beit. 
D4 MRe 
