Improvements in or relating to Velocipede-Parts.
Year: 1894

page_text: Date of Application, 16th June, 1894
Complete Specification Left, 13th Apr., 1895-Accepted, 18th May, 1895
PROVISIONAL SPECIFICATION.
Improvements in or relating to Velocipede-Parts.
1, FREDERICK WESTWOOD, of 1 Lombard Street, in the City of Birmingham,
Cycle Fittings Manufacturer, do hereby declare the nature of this invention to be
as follows:-
My invention relates to fork sides for cycles, to, tubing for cycle frames, and to
valves for pneumatic tyres, and my object is to improve the manufacture of fork
sides and tubing and to produce a better valve.
In constructing fork sides according to present methods from sheet metal, a
taper blank is used thin at the edge, which blank is wrapped over and the edges
brazed together at the lap or scam: The redundant metal is removed by filing.
This process is disadvantageous as the tapered fork does not fit well into the plate
crown now so much in use, and the mode of dealing with excess metal is very
tedious and laborious.
In constructing a fork in accordance with my invention, I make a blank which
is parallel for a certain distance and afterwards taper. On the edge of the
blank I construct a trough shaped channel on the side which will be within when
the blank is folded. I lap the other edge into this trough and braze it in. The
side is thus quite flush and so makes a neat finish. The fork is also parallel at
the upper part and readily fits the plate crown.
In constructing brazed tube for the frame in accordance with my inventio:>
I take a brazed strip of metal and turn it up into tubular shape and prepare a
small flute or channel at each edge so that one edge may lay into the other and so
hold firmly together while brazing.
After brazing the tube so formed I twist it so that the brazed joint lies
spirally round its circumference.
In constructing my improved valve according to one modification I arrange a
rubber tubular projection from the inner inflatable tube of the tyre, and in this
I insert a metal tube having a broad head within the inner tube, but not too
broad to be passed into the interior by expanding the rubber tubular projection.
Outside the rubber nipple or projection I fit a metal sleeve with a flange at its
inner edge corresponding to the inetal head within, and I fit the metal tube with a
screw and screw nut. The aperture in the metal tube does not pass straight
through the head but stops short within the rubber nipple, and has a hole bored
through the side within the nipple.
So long as the nut is screwed down the stem and against the metal sleeve, the
internal head is drawn down firmly against the rubber of the inflatable tube, and
clips a ring surface between the head and the flange at the end of the sleeve.
The valve is then closed air tight. When the nut is loosened however and the
inflating pump applied, the air is forced through the side hole and passes into
the tyre by expanding the rubber nipple and then passing under the head into the
inflatable tube.
In another modification carrying my invention into effect 1 preserve the air tube
with the head within the inner tube, and I fasten it firmly by nut and suitable
washers, but I pass the air hole through the head, and I form a flap within the
rubber inflatable-tube which flap lies upon the head and covers the aperture, su

page_text: forming a valve held down by the pressure from within and raised by the pressure
from the pump when air is to be forced in.
Dated this 15th day of June 1894.
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents for the Applicant.
.
Improvements in or relating to Velocipede Parts.
I, FREDERICK WESTWOOD, of 1 Lombard Street, in the City of Birmingham,
Cycle Fittings 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:-
My invention relates to fork sides for cycles, to tubing for cycle frames and to
valves for pneumatic tyres, and my object is to improve the manufacture of fork
sides and tubing and to produce a better valve.
Referring to the accompanying drawings in which the application of my invention
is illustrated :-
Figure 1 shows on a reduced scale a blank cut out from which to prepare a
fork side.
Figure 2 shows in section en a larger scale a fork side.
Figure 3 shows in section my method of making brazed tube.
Figure 4 shows the tube twisted after brazing.
Figure 5 is a section of my improved valve.
In constructing fork sides according to present methods from sheet metal, a taper
blank is used thin at the edge, which blank is wrapped over and the edges brazed
together at the lap or seam. The redundant metal is removed by filing. This
process is disadvantageous as the tapered fork does not fit well into the plate
crown now so much in use, and the mode of dealing with excess metal is very
tedious and laborious.
In constructing a fork in accordance with my invention, see Figures 1 and 2,
I make a blank A Figure 1 which is parallel for a certain distance as at B and
afterwards taper. On the edge of the blank I construct a trough shaped channel
on the side which will be within, when the blank is folded. I lap the other edge
into this trough and braze it in. The outside is thus quite flush and so makes a
neat finish. The fork is also parallel at the upper part and readily fits the plate
crown.
Figure 2 shows this in section, the trough is shown at Cand the edge D is laid
into it and brazed leaving a flush surface outside and no surplus brass to file
away.
In constructing brazed tube for the frame in accordance with my invention
I take a brazed strip of metal and turn it up into tubular shape and prepare a
small flute or channel at each edge so that one edge may lay into the other and
so hold firmly together while brazing.
Such flutes or channels are shown at E, F, Figure 3 laid into each other and
brazed.
After brazing the tube so formed I twist it so that the brazed joint lies spirally
round its circumference.
A tube so twisted is shown at Figure 4.
In constructing my improved valve see Figure 5 according to one modification
I arrange a rubber tubular projection G from the inner inflatable tube H of the
tyre and in this I insert a metal tube I having a broad head K within the inner
tube H but not too broad to be passed into the interior by expanding the rubber
: .

page_text: tubular projection G. I fit a metal sleeve L with a flange M at its inner edge
corresponding to the metal head within, and I fit the metal tube with a screw and
screw nut N. The aperture O in the metal tube does not pass straight through
the head but stops short within the rubber nipple, and has a hole P bored through
the side within the nipple.
So long as the nut N is screwed down the stem and against the metal sleeve L,
the internal head K is drawn down firmly against the rubber of the inflatable
tube H and clips a ring surface between the head K and the flange M at the end
of the sleeve. The valve is then closed air tight. When the nut is loosened
however and the inflating pump applied, the air is forced through the side hole P
and passes into the tyre by expanding the rubber nipple and then passing under
the head of the inflatable tube. To allow of this the rubber projection G fits
easily into the metal sleeve L near the hole P.
Having now particularly described and ascertained the nature of my said inven-
tiou and in what manner the same is to be performed, I declare that what I
claim is :-
:-
1. A fork side for a velocipede constructed from a blank with a trough edge
into which the other edge fits so as to leave a flush surface outside after brazing
substantially as hereinbefore described with reference to Figure 2 of the drawings.
2. A fork side for a velocipede constructed from a blank, part tapered, part
parallel, so as to leave a parallel part to fit the plate crown substantially as
herein before described with reference to Figure 1 of the drawings.
3. A tube for a velocipede frame, the blank having fluted or channeled edges
which are folded into each other to form the tube and then brazed together
substantially as hereinbefore described with reference to Figure 3 of the drawings.
4. In tubes of the kind claimed in the preceding claim twisting the tube after
formation to carry the join round the tube substantially as hereinbefore described
with reference to Figure 4 of the drawings.
5. A valve for a pneumatic tyre comprising a rubber projection from the inner
tube, a metal tube with a head inside and a nut outside, a sleeve outside the rubber
projection acted on by the nut and an aperture in the side of the metal tube
closed by the rubber sleeve to form an air valve substantially as herein before
described and illustrated at Figure 5 of the accompanying drawings.
Dated this 11th dow of April 1895
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents for the Applicant.