TPROVEMENTS IN RAILWAY BREAKS
Year: 1858

page_text: LETTERS PATENT to James Tatlow, of Wirksworth, in the County of
Derby, Manufacturer, and Henry Hodgkinson, of the same Place,
Tinginger for the Invention of "TPROVEMENTS IN RAILWAY BREAKS."
Sealed the 8th March 1859, and dated the 9th September 1858.
PROVISIONAL SPECIFICATION left by the said James Tatlow and Henry
Hodgkinson at the Office of the Commissioners of Patents, with their
Petition; on the 9th September 1858.
We, JAMES TATLOW, of Wirkswork, in the County of Derby, Manufacturer,
and HENRY HODGKINSON, of the same Place, Engineer, do hereby declare the
nature of the said Invention for "IMPROVEMENTS IN RAILWAY BREAKS," to be
as follows:-
The break proper, or that which comes into actual contact with the wheel,
consists of two parts, one of which is a break block attached to a jointed arm,
and extends down nearly to the rail, and the other is a break band that may be
divided, if desired, at one, two, or more places, and attached to a metallic
band correspondingly jointed. The arm which carries the break block at one
end, is jointed at the other end to the carriage frame, and the break band
is connected to it near the břeák block. The other end of the break band is
connected to one arm of a bell crank lever or to any other lever capable of
imparting to it such a motion that when the said end is pulled upon, both the
break block and the break band may be thereby drawn tightly against the

page_text: wheel. We prefer to impart the necessary motion to the bell crank or other
levers of any required number of our improved breaks by means of longitudinal
rods, arranged, connected, and worked, as described in the Specification of a
Patent granted to us on the 21st December 1857; but any other suitable
method of imparting motion may be employed. We prefer that the break
block and break band shall together be of such a length as to embrace rather
more than one-half of the circumference of the wheel.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said James Tatlow. and Henry Hodgkinson in the Great Seal
Patent Office on the 9th March 1859.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JAMES
TATLOW, of Wirksworth, in the County of Derby, Manufacturer, and HENRY
HODGKINSON, of the same Place, Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Ninth day of September, in the year of our Lord
One thousand eight hundred and fifty-eight, in the twenty-second year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
us, the said James Tatlow and Henry Hodgkinson, Her special licence that
we, the said James Tatlow and Henry Hodgkinson, our executors, adminis
trators, and assigns, or such others as we, the said James Tatlow and
Henry Hodgkinson, our executors, administrators, and assigns, should at any
time agree with, and no. others, from time to time and at all times there-
after during the term therein expressed, should and lawfully might make,
use, exercise, and vend, within the United Kingdom of Great Britain and
Ireland, the Channel Islands, and Isle of Man, an Invention for "IMPROVE-
MENTS IN RAILWAY BREAKS," upon the condition (amongst others) that we, the
said James Tatlow and Henry Hodgkinson, or one of us, our executors or
administrators, by an instrument in writing under our or their, or one of our
or their hands and seals, should particularly describe and ascertain the nature
of the said Inyention, and in what manner the same was to be performed,
and cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.
• NOW KNOW YE, that we, the said James Tatlow and Henry Hodgkinson,
do hereby declare the nature of our said Invention, and in what manner the
same is to be performed, to be particularly described and ascertained in and

page_text: by the following statement thereof, reference being had to the Drawings
hereunto annexed, that is to say :-
The break proper, or that which comes into actual contact with the wheel,
consists of two parts, one of which is a break block attached to a jointed arm,
and extends down nearly to the rail, and the other is a break band that, may be
divided, if desired, at one, two, or more places, and attached to a metallic band
correspondingly jointed. The arm which carries the break block at one end is;
jointed at the other end to the carriage frame, and the break band is connected
to it near the break block. The other end of the break band is connected to
one arm of a bell crank lever, or to any other lever capable of imparting to it.
such a motion, that when the said end is pulled upon, both the break block
and the break band may be thereby drawn tightly against the wheel. We
prefer to impart the necessary motion to the bell crank or other levers of any
required number of our improved breaks, by means of longitudinal rods,
arranged, connected, and worked, as described in the Specification of a Patent
granted to us on the Twenty-first December, One thousand eight hundred and
fifty-seven; but any other suitable method of imparting motion may be
employed. We prefer that the break block and break band shall together be
of such a length as to embrace rather more than one-half of the circumference
of the wheel.
In the Drawings hereunto annexed we have illustrated the manner in which
we carry our Invention into effect.
there is a hole
of the arm is
Figure 1 shows the break pressed down on the surface of the wheel; Fig. 2
shows the break when it is raised from the wheel. A is the framing of the
carriage to which the bracket B is fastened by screw bolts, or in any other
way. To this bracket is pinned or hinged the arm C at a. The arm C
may be of cast iron or of wrought or malleable iron. At
through which the hinge pin G is passed. The lower part
made to fit the circle of the wheel, and has bolted to it a block of wood,
o leather, iron, or any other suitable material, so that when that part is worn
away it may be easily replaced. D is a band of iron jointed at 6 to G, and to
the crank or arm E at c, and on the under side of D is bolted or riveted a
strap of leather or any other suitable material. The crank or arm E is fixed
on a transverse shaft, in which is the set screw d. This transverse shaft is
carried by a bearing or plummer block F. A detached view of the hinge pin
G, which passes through a hole in the arm C, is shown in Figure 3. When
the break is to be applied, the guard, driver, or stoker, turns a hand wheel or
handle, which imparts motion to the longitudinal shafts or rods, described in
our former Specification, which again turn the transverse shafts, on which is

page_text: fixed the crank or arm E; this crank or arm forces down the band D, and
brings it in frictional contact with the rotating periphery of the wheel, at
the same time forcing the break block b' against the running surface of the
wheel, so that by the band and block together the wheel is effectually
gripped.
And having now described the nature of the said Invention, and in what
manner the same may be performed, we declare that we do not confine
ourselves to the precise details set forth, but we claim the construction,
arrangement, and mode of working railway breaks, essentially as herein-before
described and illustrated in the Drawings hereunto annexed.
In witness whereof, we, the said James Tatlow and Henry Hodgkinson,
have hereunto set our hands and seals, this Eighth day of March,
One thousand eight hundred and fifty-nine.
JAMES TATLOW.
(L.S.)
HENRY HODGKINSON. (L.S.)