A MACHINE OR APPARATUS WHICH IS INTENDED AS A SUBSTITUTE FOR DRAGS FOR CARRIAGE WHEELS.AND.OTHER PURPOSES
Year: 1830

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
FREDERICK JOHNSON, of Canterbury, in the County of Kent, Tunbridge Ware
Manufacturer, send greeting.
WHEREAS His late most Excellent Majesty King George the Fourth did,
by His Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Twenty-sixth day of January, One thousand eight hundred
and thirty, in the-tenth year of His reign, give and grant unto me, the said
George Frederick Johnson, His special licence that I, the said George
Frederick Johnson, my.exors, admors, and assigns, and such others as I, the
said George. Erederick Johnson, my exors, admors, and assigns, should at any
time agree with, and no others, from time to time and at all times during the
term of years therein mentioned, should and lawfully might make, use, exercise,
and vend, within England, Wales; and Town, of Berwick-upon-Tweed, my
Invention of "A MACHINE OR APPARATUS WHICH IS INTENDED AS A SUBSTITUTE
FOR DRAGS FOR CARRIAGE WHEELS.AND.OTHER PURPOSES;" in which said Letters
Patent there is contained a proviso that I, the said George Frederick Johnson,
shall cause a particular description.of the nature of my said Invention, and in
what manner the..same is to be performed, to be inrolled in His Majesty's
High Court of Chancery within six calendar months next and immediately
after the date of the said .in part recited Letters Patent, as in and by the
same, reference being thereunto ihad, will more:fully and at large appear.
NOW KNOW YE, that. in compliance with the said proviso, I the said
George Frederick Johnson; do hereby declare the nature of my said Invention,

page_text: and the manner in which the same are to be performed, are described
and ascertained by the following description thereof, reference being had to
the Drawing annexed, and the figures and letters marked thereon, that is
to say :-
•
My Invention consists in the application of a break to the naves of the
wheels of stage coaches and other wheel carriages, in such manner that the
friction caused by such break, when brought in contact with the naves of the
wheels, shall prevent their turning on the axles at a greater rate than is
desirable for the safe conveyance of persons. and luggage placed in such
carriages; and such break may also be beneficially brought into action to
prevent the running away of horses, in consequence of the weight becoming
more difficult to draw, by the wheels being prevented turning by the contact
of the break to the naves. But in order that my Invention may be more
readily understood, I will proceed to describe the Drawing hereunto annexed,
which represents the description of break which I prefer, in consequence of its
presenting a large surface for the production of friction.
Figure 1 represents the break; and Figure 2 shews it combined with the
ring of metal, which is placed on the nave. Figure 3 represents the nave of
a wheel, with the break A and the ring B applied. The ring B is made fast
to the nave by the screws a, a, a, or by other means. C is a projection made
fast to the bed of the carriage or to the back of the axle, so as to project over
the nave of the wheel, and is for the purpose of carrying the break, which is
hinged to it at b, therefore it will be evident that when the end c of the break
is pressed upon or caused to bind on to the ring. B, as represented by Fig. 3,
the friction caused by the rubbing of the surfaces of the break A and the
ring B will prevent the wheel turning on its axle; but when the break is
raised from off the ring B, the wheel will be at liberty and turn as usual on
its axle: Fig. 4 represents my Invention as applied to the two hind wheels of
a stage coach, A being the break, B the rings, and C a lever for the purpose
of depressing or raising the breaks. This lever C has its fulcrum at D. E is
a horizontal lever connected to the two brakes at d, d, by the links e, e. The
horizontal lever E is pressed upon by the lever C at f. It will therefore be
evident that if the lever C'be brought to the position of the dotted lines,. that
it will depress the lever E, and with it the breaks, and thus will friction be
produced, and have a tendency to stop the wheels; and by turning the lever C
to its present position the wheels will be relieved and permitted to revolve.
From the above description the nature of my Invention will be readily
understood, and it will be evident, that although I have only described a brake
having angular surfaces for the production of friction, still it is evident that.a

page_text: variety of forms may be resorted to to produce a similar effect; and in
applying my Invention to wheels which have iron naves, it will not be
necessary to affix the ring B to such nave, but a surface to fit the form of
break should be cast on the nave.
In witness whereof, I, the said George Frederick Johnson, have hereunto
set my hand and seal, this Twenty-third day of July, in the year of
our Lord One thousand eight hundred and thirty.
GEORGE FREDERICK (L.S.) JOHNSON.
AND BE IT REMEMBERED, that on the Twenty-third day of July, in the
year of our Lord 1830, the aforesaid George Frederick Johnson came before
our said Lord the King in His Chancery, and acknowledged the Specification
aforesaid, and all and every thing therein contained and specified, in form
above written. And also the Specification aforesaid was stamped according to
the tenor of the Statute made for that purpose.
Inrolled the Twenty-sixth day of July, in the year of our Lord One
thousand eight hundred and thirty.