Improvements in or connected with Naves and Spokes for Carriage Wheels.
Year: 1896

page_text: Date of Application, 11th Apr., 1896-Accepted, 16th May, 1896
COMPLETE SPECIFICATION.
Improvements in or connected with Naves and Spokes for Carriage
Wheels.
I, AUGUST REICHWALD, of 9 New Broad Street, in the City of London, Steel,
Iron, Metal and Mineral Merchant, do hereby declare the nature of this invention
(a communication to me from abroad by Adolf Resow of Essen, in the Empire of
Germany, Engineer) and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement :-
The object of this invention for improvements in or connected with carriage
wheels is to provide a metal nave especially adapted to form a reliable and durable
connection for wood spokes of carriage wheels all as hereafter described.
According to this invention and as shewn in the accompanying drawing by the
horizontal section Fig. 1 and elevation Fig. 2, the nave consists of two circular
steel or metal discs a and a', each provided with a short collar b, b'; both of these
flanged discs are located at a certain distance from each other, upon a tube c, which
is intended for the reception of the axle-journal.
The collar 6 of the disc a takes against a shoulder d of the tube c and is secured
to the latter by means of rivets e. The other disc a' can be adjusted longitudinally
on the tube c by tightening the nuts f of the screw-bolts g connecting the two discs,
and thus the disc a¹ can be forced upon the wedge-shaped ends of the spokes h
which are placed between the said discs.
Radial ribs i on the inner surfaces of the discs divide the space between them
into a number of compartments, each of which is intended for the reception of one
or more spoke-heads. The heads of the spokes, where they meet the ribs i, are
formed with grooves for the latter, so that they are securely held between the
discs, and also the spoke heads h are further secured by the screw-bolts g passing
through the said spoke-heads h.
As shewn by the detached cross-sectional view, Fig. 3, the ribs i taper slightly
towards the interior of the nave, with the object of diminishing any possible
openings or spaces, which may be caused by the shrinking of the spoke-heads, and
moreover, the ribs i prevent the addition or summing up of single openings or
spaces.
The spokes, however, may be placed in such a manner that the shriuking in the
circumferential direction is less than in the axial direction, (i.e. between the
surfaces touching the discs of the nave), and then any axial play can be entirely
done away with by tightening the nuts f. By this means also, any openings or
spaces in a circumferential direction are diminished, because the tapered ribs i,
penetrating like wedges between the spoke-heads, force them together.
A nave of this construction is far superior to any other nave by reason of its
extraordinary strength and especially by its perfect durability.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is:
1. A steel or metal nave for carriage-wheels with wooden spokes consisting of
two circular discs with radial ribs on their interior sides, mounted on a tube for the
axle-journal, and holding together, by means of screw-bolts, the wedge-shaped
heads of the spokes, substantially as described.

page_text: 2. The general arrangement and combination of parts composing the improve-
ments in or connected with carriage wheels substantially as and for the purposes
described and illustrated with reference to the accompanying drawings.
Dated this 11th day of Annil 1906
BREWER & SON,
London and Leeds, Agents for the Applicant.