Improvements in or relating to Velocipede Steering Heads and Adjacent Parts.
Year: 1896

page_text: Date of Application, 10th Jan., 1895-Accepted, 10th Feb., 1897
COMPLETE SPECIFICATION.
Improvements in or relating to Velocipede Steering Heads and
Adjacent Parts.
1, REGINALD HADDAN of the Firm of Herbert Haddan and Co. of
18, Buckingham Street, Strand, London, W.C. Patent Agent do hereby
declare the nature of this invention a communication to me from abroad by
Félix Chaligné of 15, Rue Crespin, Paris, in the Republic of France, Manufacturer,
and in what manner the same is to be performed to be particularly described
and ascertained in and by the following statement :-
This invention relates to a steering head and adjacent parts for velocipedes
made exclusively in steel without any castings.
The annexed drawings illustrate this invention the advantages of which are :-
1. Greater lightness. 2. Greater solidity. 3. Greater elegance.
Fig. 1 is an elevation of the improved steering head the front fork and the
frame being.shown broken away.
Fig. 2 is a section without the head of the front fork.
Figs. 3 and 4 show two views of one of the sockets.
Fig. 5 shows in section the parts of the upper ball bearing.
Fig. 6 shows the front fork head from the front and from above.
Fig. 7 shows the collar for handle bar adjustment in plan and in section.
The remaining figures show detail views."
a is the tube of the framework forming the sleeve in which turns the steering
head,
c are the sockets joining the tube a to the frame tubes d, e is the upper ball
bearing, the lower ball bearing which differ only, that the neck of the upper
bearing is lengthened and provided in its interior with a screw thread connecting
it to and adjusting it on the tube 6 and provided with slits allowing of its
compression under the pressure of the collar g. h are the balls, i is the head of
the front fork of which jj are the branches.
I obtain the connecting sockets Figs. III and IV by cutting out a sheet metal
plate Fig. VIIIA, the width of which corresponds to the circumference of the collar
before it is reduced. I then pass the plate under a stamping press where a die
swages up the neck 1 leaving the part 2 flat see, Fig. VIII b c and d. A further
pressure curves the part 2 and closes it by joining the dovetail 3. A further
pressure finishes the collar by compressing the part 2 which is larger than necessary
and reducing it to the diameter required.
The head i of the fork is in two pieces 7 and 8, joined by rivets 11; they are
obtained from blanks, Fig. IX by stamping each with a single pressure, which
arches the plates see, Fig. IX, and cuts the hole 9 pushing back the heads 10 for
the upper piece 7 and cutting them out for the under piece 8.
I obtain the collar g from blanks XIA by two pressures the first pressing down
the part 12, see Fig. 1B, the second bending the collar. I could also strike up
upon the collar in one pressure a tubular socket similar to that marked 1 of the
collar c to take a pressure screw and so form an annular collar with pressure screw
or the like. I can also make the collar in two pieces and make at each end of the
semicircle shoulders 12 similar to those indicated in Fig. 7.
I also press or swage out the ball races from a blank see Fig. X^ in appropriate

page_text: dimensions by two pressures or three at most see Figs. XB, X and XP, in which
4 are the sockets and 4 the ball races.
The methods of pressing out the parts are given as examples and may be
varied.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
-claim is :-
In the construction of the steering head and adjacent parts of velocipedes,
1. A collar c cut out of a blank or plate of sheet steel and swaged up or pressed
into form as described.
2. A fork head i made in two pieces cut from steel plates and swaged up or
pressed into form as described.
3. An expanding and contracting collar g or an annular collar with pressure
-screw cut and pressed up from a steel plate as described.
4. A ball race e cut out and pressed up from a steel plate.
5. The combination of above parts substantially as described and shown in the
annexed drawings.
D. 10
1900
R. HADDAN.