An Improvement in Adjustable Handle Bars for Oycles.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
An Improvement in Adjustable Handle Bars for Oycles.
I, WILLIAM FREDERICK WILLIAMS of 32, Shaftesbury Avenue, London, W.
Gentleman, do heroby declare the naturo of this invention to be as follows:-
My invention relates to improved means of adjusting the handles of a bicycle so
as to regulate both their rearward extension and height, the improvement being of
general application but particularly intended for use in conjunction with the
shoulder abutment or support which forms the subject of previous Applications for
Letters Patent dated the 24th day of April 1894 No. 8143 and the 12th day of
June 1896 No. 12,997 it being essential when the said shoulder support is adjusted
in the fore and aft direction to vary the more or less erect position of the rider's
body that the position of the handles should be varied to correspond in order that
the proper relation between the handles and the shoulder supports should be
maintained so as to enable the rider to derive tho full benefit as regards increased
propulsive power which the shoulder supports are intended to afford. For the
purpose of this adjustment the handle bar is made of the usual curved form with
rearwardly directed handles and is inouuted to turn about its own horizontal axis
in a socket carried by the handle bar pillar so as by turning the handle bar in its
socket to vary both the elevation and rearward extension of the handles, and the
improvement consists essentially in the means of securely locking the handle bar
in whatever position it may be set and of enabling it to resist the strain which
comes upon it. For this purpose the handle bar has affixed to it one or a pair of
notched or other quadrants placed centrally or one at either sido of the socket in
which the handle bar turns and in a suitable casing upon the handle bar pillar is
mounted to slide a locking bolt adapted to engage two or more notches or projeo-
tious of said notched quadraut or quadrants, the bolt moving in a direction
parallel to the handle bar and being forced into position of locking engagement by
a bolt or bolts acted on by a spring or otherwise, the bolt or bolts having notches
or projections adapted when brought by sliding the bolt or bolts into line with the
quadrants to give passage or otherwise as required to the latter and so permit the
free rotation of the handle bar in its socket.
Dated this 10th dow of A vanet 1908
An Improvement in Adjustable Handle Bars for Oyoles.
I, WILLIAM FREDERICK WILLIAMS of 32, Shaftesbury Avenue, London, W.
Gentleman, 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 relatos to the adjustment of the handle bar of a bicycle so as to

page_text: enable both the rearward extension and height of the handles to be readily varied
as required.
The invention is illustrated in the accompanying drawings forming part of this
specification wherein
Figures 12 and 3 shew a front elevation, plan, and sectional elevation of one
form of adjustment and
Figure 4 shews a front elevation of a modification.
For the purpose of this adjustment the handle bar A, which may be made either
of the cranked form shewn or of the usual curved form, is mounted to turn about
a horizontal axis in a socket B carried by the handle bar pillar C so as to vary
both the elevation and rearward projection of the handles.
The improvement consists essentially in the means of securely locking the handle
bar in whatever position it may be set and of enabling it to resist the strain to
which it is subjected. For this purpose the handle bar has affixed to it a notched
apertured or toothed quadrant D' placed centrally, as in Figures 1 2 3, the
socket B being slotted to give passage to the said quadrant or two such quadrants
may be provided placed one at either side of the socket B, as shewn in Figure 4.
In a suitable casing E carried by the handle bar pillar C is fitted to slide a locking
bolt having a lug or lugs fadapted to engage a notch d of said quadrant or of
each of such quadrants. The bolt slides in a direction parallel to the handle bar
and is forced into locking engagement with the quadrant or quadrants by a spring g
or otherwise.
The bolt is provided with a knob handle e by means of which it may be pushed
or forced out of engagement with the quadrant to permit the handle bar to be
turned in its socket.
It will be obvious that the quadrants instead of being notched might have
through apertures for L-shaped fugs f, carried by the bolt, to enter or the quadrant
might have laterally projecting teeth engaged by the lugs of the bolt.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
The combination, with a cycle handle bar adjustable on a horizontal axis as
described, of a quadrant or quadrants and locking bolt adapted to engage there-
with as described for securing the handle bar firmly in whatever position it may
be set.
Dated this
A. M. & WM. CLARK,
53, Chancery Lane, London, Chartered Patent Agents.