AN IMPROVED MEANS OF SECURING WHEELS UPON AXLES
Year: 1855

page_text: LETTERS PATENT to Richard Archibald Brooman, of 166, Fleet Street, in
the City of London, Patent Agent, for the Invention of "AN IMPROVED
MEANS OF SECURING WHEELS UPON AXLES."-A communication.
PROVISIONAL SPECIFICATION left by the said Richard Archibald
Brooman at the Office of the Commissioners of Patents, with his
Petition, on the 10th July 1855.
I, RICHARD ARCHIBALD BROOMAN, of 166, Fleet Street, in the City of
London, Patent Agent, do hereby declare the nature of the said Invention for
"AN IMPROVED MEANS OF SECURING WHEELS UPON AXLES," (communicated to me
by a foreigner residing abroad,) to be as follows:-
Figure 1 of the Drawings annexed is a longitudinal section of the nave of
a wheel attached to an axle according to my improved mode; Figure 2 is a
back view of the nave; Figure 3 is a view of the inner side of the cap;
Figure 4 is a section on the line a, a, of Figure 1. Similar letters indicate
corresponding parts in the several Figures.
The nature of this Invention consists in the peculiar means employed for
securing the nave to the axle. A represents a nave or hub of usual construc-
tion, and having its front end covered permanently by a plate B, and a band C
attached to the back end of its periphery; D represents the arm of the axle E,

page_text: and Frepresents a circular cap, which is fitted loosely on the arm D adjoining
the shoulder of the axle, this cap being secured in its proper place upon the
arm by a collar G, as shown in Figure 1. Upon the back end of the hub A
are attached two, three, or more segmental projections, the edges of which are
creased or grooved, as shewn in Figure 1, and also inclined or beville longi-
tudinally, as shewn in Figures 2 and 4. There is also inserted a pin II in the
back end of the nave, the inner end of which bears against a spiral spring c.
The inner surface of the cap F is provided at its edge with curved keys d, the
number of these corresponding with the number of projections b. These keys
project inward or towards the centre of the plate F, and their inner sides are
bevilled to correspond inversely with the creases or grooves in the outer edges
of the projections b, see Figure 1. The edges of the keys are also inclined to
correspond with the outer edges of the projections b, see Figure 3. Through
the cap F there is made a liole e to receive the pin H. To attach the nave to
the axle, the cap F is placed against the back end of the hub A, the keys d
entering between the projections b, sec Figure 4. The cap is then turned
from left to right, and the keys pass over the outer edges of the projections b,
while the pin H will pass into the hole e. The pin H prevents the keys d from
returning off from the projections when the vehicle is moved backward.
To detach the wheel from the axle, the pin II is forced back free from the
cap F by means of a suitable key to enter the hole, when the cap can then
be turned back, and the keys will no longer hold in the recessed parts of the
projections on the nave.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Richard Archibald Brooman in the Great Seal Patent Office 2
on the 10th January 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RICHARD
ARCHIBALD BROOMAN, of 166, Fleet Street, in the City of London, Patent
Agent, send greeting.
WHEREAS IIer most Excellent Majesty Queen Victoria, by-Her-Letters-30
Patent, bearing date the Tenth day of July, in the year of our Lord One
thousand eight hundred and fifty-five, in the nineteenth year of Iler reign,
did, for Ilerself. Her heirs and successors, give and grant unto me, the
said Richard Archibald Brooman, Her special licence that I, the said Richard
Archibald Brooman, my executors, administrators, and assigns, or such others 35

page_text: as I, the said Richard Archibald Brooman, my executors, administrators,
and assigns, should at any time agree with, and no others, from time to time
and at all times thereafter 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 "AN IMPROVED MEANS OF SECURING WHEELS UPON AXLES," (com-
municated to me by a foreigner residing abroad,) upon the condition (amongst
others) that I, the said Richard Archibald Brooman, by an instrument in
writing under my hand and seal, should particularly describe and ascertain
the nature of the said Invention, 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 I, the said Richard Archibald Brooman, do hereby
declare the nature of the said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the
following statement, reference being had to the Drawings hereunto annexed,
that is to say:
This Invention consists of the following arrangement for securing wheels
upon axles-A circular cap is fitted loosely on the arm of an axle adjoining
the shoulder, and is secured in its place by a collar, the inner surface of the
cap being provided at its edge with a number of curved keys projecting inwards
or towards the centre. A corresponding number of segmental projections is
attached on the back end of the nave or hub. The edges of these projections
are "creased" or grooved, and also bevilled longitudinally, and the inner sides
of the keys on the cap are bevilled to correspond inversely with the grooves in
the outer edges of the projections on the nave, and the edges of the keys are
inclined to correspond with the outer edges of the projections. A pin is
inserted in the back end of the nave, the inner end of which bears against a
spiral spring, a hole being made through the cap to receive the pin. The front
end of the nave or hub is covered permanently by a plate, and a band is
attached to the back end of its periphery.
To attach the hub or nave to the axle, the cap is placed against the back
end of the hub, the keys on the cap entering hetween the projections on the
nave. The cap is then turned from left to right, and the keys pass over the
outer edges of the projections, while the pin will pass into the hole made to
receive it in the cap, and so prevent the keys from returning off from the
projections when the vehicle is moved backward. To detach the wheel from

page_text: the axle, the pin is forced back free from the cap by means of a suitable key,
when the cap can then be turned back, and the keys will no longer hold in the
recessed parts of the projections on the nave.
Figure 1 of the Drawings annexed is a longitudinal section of the nave of a
wheel attached to an axle according to my improved mode; Figure 2 is a back
view of the nave; and Figure 3, a view of the inner side of the cap; Figure 4
is a section on the line a, a, of Figure 1. Similar letters indicate correspond-
ing parts in the several Figures. A is a nave or hub of the usual construc-
tion, having its front end covered permanently by a plate B; C is a band
attached to the back end of its periphery; E is the axle; D, its arm; F is a
circular сар, which is fitted loosely on the arm D, adjoining the shoulder a of
the axle. The cap is secured in its proper place upon the arm by a collar G,
as shewn in Figure 1. b, b, b, are segmental projections (of which there may
be two, three, or more), attached on the back end of the hub or nave. The
edges of these projections are "creased" or grooved, as shewn in Figure 1, and
also inclined or bevelled longitudinally, as shewn in Figures 2 and 4. H is a
pin inserted in the back end of the nave, the inner end bearing against a spiral
spring c; d, d, d, are curved keys on the inner surface of the cap F at its edge.
The number of these keys, as before stated, corresponds with the number of
projections b. These keys project inwards or towards the centre of F, and their
inner sides are bevelled to correspond inversely with the "creases or grooves
in the outer edges of the projections b, Figure 1. The edges of the keys are also
inclined to correspond with the outer edges of the projections b, see Figure 3.
e is a hole in the cap F to receive the pin II. Figure 4 shews the position
of the keys d between the projections when the cap is placed against the
back end of the nave to attach the nave to the axle.
יי
And having now described the nature of the said Invention, and the
manner in which the same is to be performed, I declare that I claim the im-
proved means of attaching or securing wheels upon axles, as herein-before
described, and represented in the Drawings hereunto annexed.
In witness whereof, 1, the said Richard Archibald Brooman, have here-
unto set my hand and seal, this Ninth day of January, One thousand
eight hundred and fifty-six.