An Improved Mode of Moulding Wheel Naves preparatory to Casting the same on or around the Spokes, and Apparatus therefor.
Year: 1893

page_text: Date of Application, 21st Sept., 1893-Accepted, 28th Oct., 1893.
COMPLETE SPECIFICATION.
An Improved Mode of Moulding Wheel Naves preparatory to Casting
the same on or around the Spokes, and Apparatus therefor.
WILHELM JANSON of Feitz in the Empire of Germany, Manufacturer do
hereby declare the nature of this invention and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement:
This invention which is illustrated by Figs. 1 to 9 of the annexed drawings
relates to a new mode of fixing wheel spokes by moulding them in preparatory to
casting, by the aid of certain moulding arrangements whereby an exact and firm
position is given in the nave and certain indisplaceable positions imparted to the
spokes to be cast in, these latter having been previously connected with the felly
and tire, the contrivances to be used in moulding being constructed in such a way
that they may be easily separated from the wheel.
In the annexed drawings
Fig. 1 shows a sectional view of a three sectioned moulding box.
Fig. 2 a sectional view of the under part and illustrates the process of turning
out the lower half of the model after moulding therefrom.
Fig. 3 is a side view of the under box part.
Fig. 4 an upper plan view of the lower box part.
Fig. 5 is the middle box part in plan view and cross section on the line ..
Fig. 6, sectional view of the lower box part with core placed in under spokes.
Fig. 7 is a sectional view through the three sectioned moulding box after the
nave is moulded in.
Fig. 8 is an elevation of the wheel illustrating the taking out of the middle box
cramps after the upper box part has been lifted off.
Fig. 9 illustrates the taking out of the middle box part rings.
The under part A is provided with arms a to support the tire holder B, the
part d of the nave model having a screwed pine and nut or piece b which is inserted
and stamped round into the mould. This done, the middle box is put on which is
furnished with notches e, rings D D₁ and the securing band ƒ (see Figs. 1, 5
and 7).
The upper model is then put on, and thereon the top box E and the mould
stamped round.
This process being finished, the model is removed by the aid of the screw c and
the under portion d is turned out of the mould, the core of the nave i inserted, and
the spokes with their tire put in.
For this purpose the under part A is principally used which also serves to
carry, by means of the ring B, the felly and tire. The spokes are put into the
notches of the moulding box border and held fast therein by means of
hooks m.
Thereupon the middle box is put on which can easily be effected through the
upper still free spoke ends and lastly the form ready for casting is closed.
After the casting is finished the upper box E is lifted off and the separation of
the middle box D D¹ is effected and the middle box rings taken out (see Figs. 8
and 9.) so that now the wheel is entirely shaped, connected with tire and felly and
provided with a box thread.
This moulding process and casting in secures uniform production and truly
shaped wheels, the spokes and naves of which have equal tension as the tire and
fellies lie uniformly distant from the centre of the nave and are firmly and safely
connected with the latter which requires no further working upon.

page_text: Having now particularly described and ascertained the nature of this inveu-
tion and in what manner the same is to be performed I declare that what I
claim is―
The improved mode of and apparatus for moulding wheel naves preparatory to
casting same on or around the spokes, previously connected with felly and tire,
comprising the separable model or nave form, upper, middle and lower moulding
boxes with their accessory notches, bands, thread box and cores, and the
mode of employing the same all substantially as set forth and for the purpose
described.
.
Dated this 21st day of Santambon 1002
R. HADDAN,
Herbert Haddan & Co.,
18, Buckingham Street, Strand, London, Agent for Applicant.