Improved Adjustable Handle Bar for Cycles.
Year: 1898

page_text: Date of Application, 12th Aug., 1898-Accepted, 12th Nov., 1898
COMPLETE SPECIFICATION.
Improved Adjustable Handle Bar for Cycles.
I, GEORG THANNER, of Kempten-in-Suabia, in the German Empire, Manu-
facturer, 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:
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The present application relates to a cycle handle bar which can be adjusted by
the rider so that the handles can be set at varying heights.
The invention is illustrated by way of example in various modifications in the
accompanying drawing, in which,
Figures 1 to 3 shew the simplest construction, whilst
Figures 4 and 5 shew an alternative construction.
Fig. 6 shews another modification.
The handle bar consists of two equal halves L L', which by means of their
flattened ends engage between the projecting ends g g of the guide pillar G
of the front fork, and are retained therein by means of the screw bolt S inserted
through them.
In the simplest construction shewn in Figures 1 to 3, the projections ¹ of
the two bars L L' are provided close to their under edge with a roll of cylindrical
perforations a a', which are intended to receive a conical pin F, provided with the
handle F and which has at its other end a screw w which engages in a correspond-
ing matrix in the pillar G. Any falling out of the pin F is thereby prevented.
This construction permits of lowering or raising one handle bar more than the
other, if desired, but on the other hand the amount of displacement is limited by
the arc over which the holes a a¹ are distributed.
Figures 4 and 5 illustrate an alternative construction in which the independent
adjustment of each half of the handle bar is also possible, but which is neverthe-
less limited by the extent of the notches all a¹. The ends L L' are provided as
shewn with the notches all a¹, in which, when the same have been adjusted, an
eccentric e engages, which eccentric is fixed upon the shaft T. The latter is
securely fixed in the guide pillar and can also be revolved by means of a handle F.
The spring C applies itself to the eccentric e, in such manner as to hold it fast in
the engaged position and thus prevent the handle from turning round.
11
Figure 6 shews a modification in which the bars are coupled. The ends
have semi-circular slots r r of which one is provided with a rack at the one side
(inner) of the slot, and the other on the other side (outer) of the same as shewn
in the drawing. The pin bearing the pinion passes through these slots, and the
said pinion engages with the curved racks and thereby the two bars L L'
can be turned in opposite directions. A clamp of any suitable construction fixed
to the edges of serves to hold the arrangement fast.
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:-
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1. Improved adjustable handle bars for cycles consisting essentially of two
norts (LL) provided with a series of perforations (a a¹) in their flattened

page_text: ends (), which ends engage between the ends (9 9¹) of the guide pillar G
through which passes a conical pin T adapted to secure the two halves of the
handle bar in the desired position, substantially as illustrated and described.
2. In the construction set forth in Claim 1 the modification consisting in the
arrangement of the notches (a" a¹) in which the eccentric e placed upon the pin T
can engage, which eccentric is held in the working position by means of a
spring (C) substantially as illustrated and described.
3. In a handle bar such as set forth in Claim 1 the provision of curved or semi-
circular slots (r ) in the ends (1), which slots possess a rack fixed respectively
to the inner and to the outer edge thereof, and in which there engages a pinion (R)
fixed upon a pin passing through the said slots, by means of which pinion the
two halves of the handle bar can be moved into the required position and be
secured therein by a clamp of any convenient construction, substantially as
described.
..
T
1 11
101 1
1000
W. P. THOMPSON & Co.,
322, High Holborn, London, W.C., Patent Agents for the Applicant.