CERTAIN IMPROVEMENTS ON NAVES OF WHEELS FOR CARRIAGES, AND FOR CENTRES OF WHEELS FOR MACHINERY FOR VARIOUS PURPOSES
Year: 1813

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
WILKS, of Ballincollig,. in the County of Cork, Esquire, send greeting.
WHEREAS His present Majesty George the Third, in and by His Letters
Patent under the Great Seal of the United Kingdom of Great Britain' and
Ireland, bearing-date. at Westminster, the Twenty-ninth day of June now last
past, for Himself, His heirs and successors, did give and grant unto me, the
said Charles Wilks, my executors, administrators, and assigns, His special
licence, full power, sole privilege and authority, that I, the said Charles Wilks,
my executors, administrators, and assigns, and every of them, by myself and
themselves, or by my and their deputy or deputies, servants or agents, or such
others as I, the said Charles Wilks, my executors, administrators, or assigns,
should at any time agree with, and no others, from time to time and at all
times thereafter, during the term of years, therein expressed, should and
lawfully might make, use, exercise, and vend, within England, Wales, and
the-Town of Berwick-upon-Tweed, my Invention of "CERTAIN IMPROVEMENTS
ON NAVES OF WHEELS FOR CARRIAGES, AND FOR CENTRES OF WHEELS FOR MACHINERY
FOR VARIOUS PURPOSES;" in which said Letters Patent there is contained a
proviso obliging me, the said Charles Wilks, by an instrument in writing
under my hand and seal, particularly to describe and ascertain the nature of
my said Invention, and in what manner the same is to be performed, and to
cause the same, to be inrolled in. His Majesty's High Court of Chancery
within two calendar months next and immediately after the date of the said

page_text: recited Letters Patent, as in and by the same (relation being thereunto had)
may more fully and at large appear, otherwise the sail Letters utterly to cease,
and determine, and become void.
NOW KNOW YE, that in compliance with the said proviso, I, the said
Charles Wilks, do hereby declare that my said Invention is fully described and
ascertained by the Drawing in the margin hereof, and the following description
thereof (that is to say):
The Drawing or Figure in the margin hereof shews the nave of a wheel
of cast iron or brass, or any other cast or wrought metal, or wood or other
material applicable to the purpose. A is a collar of similar metal or other
material made separate from the the nave. B, B, wrought iron or other metal
or other material screwed bolts, of which there are six, as shewn in the
section C, C, and D, D, (or any other number that may be deemed necessary)
to draw the collar tight to the edge of the spokes. The nave may be either
with or without separate boxes, but as the bearing will be equally distributed
the boxes were not considered necessary, the friction (by the equal distribu-
tion herein-after shewn) not being partial as at present. In making the
wheel, the collar being taken off, the spokes are put in edgewise from the outer
end of the nave, the mortices or grooves in the nave being cut wider towards
the outer end, and narrower towards the inner end (see Plan), which gives
what workmen call a good drift for tightening the spokes on the flat sides, and
can best be performed by having six long bolts to draw the collar into its place,
and then substituting the bolts that are to remain by one at a time as soon as
the spokes are sufficiently tight on their edges. In section E, E, is shewn two
spokes with dovetailed ends to prevent their drawing out of the nave; the
extent of the dovetails is shewn beyond the dotted lines, those dotted lines
being a continuation of the lines marking the edges of the spokes outside the
nave; the substance of the spoke may be varied to any extent necessary.
cases where more or less dovetail or more or less dish or splay of the spokes
may be required, I perform the same by varying the angles or bevels F, F,
and by forming the collar either convex or concave on the inner and outer sides,
as the case may require, and thereby, in whatever direction the spoke may be
required to stand, obtain an equal dovetail on each side.
In
This Invention is applicable to spokes or arms to wheels of machinery for
various purposes. In naves for mail coaches or gentlemen's carriages, where
neatness is requisite, I recommend that a circular moulding be cast round
the inner end of the nave, in which moulding the heads of the bolts may be
countersunk and turned in by the head, and that a similar moulding be cast on