Improvements in "Handle Bars" of the kind employed in the Steering or Controlling of Cycles.
Year: 1894

page_text: Date of Application, 28th May, 1894
Complete Specification Left, 21st Sept., 1894-Accepted, 27th Oct., 1894
PROVISIONAL SPECIFICATION.
Improvements in "Handle Bars" of the kind employed in the
Steering or Controlling of Cycles.
We, WILLIAM PILKINGTON, CHARLES THOMAS BISHOP and ANDERSON
BROWNSWORD, trading as "The Birmingham Climax Steel Tube Company" of
Catherine Street, Aston, Birmingham do hereby declare the nature of our said
invention to be as follows:-
"
The object of our invention is the construction of "handle bars," such as are
used to cycles in the steering or controlling the same. These handle bars are
made from tube of metal, of a required guaze, each end having a suitable handle
fitted thereon, they are centrally fixed to the pillar, the position is such that when
pressure is given by the rider to the handles the strain is conveyed near to the
centre that is near to where the handle bar is connected to the pillar, and the result
is that a fracture or breakage frequently occurs. To remedy this is the object of
our invention, which we will now describe.
°
We employ a tube of metal of a required diameter, and of a thickness in gauze
above that usually employed.
We take two tapered mandrils and insert one in each end of the tube, and by
the process of drawing or rolling separate or combined we reduce the guaze of
metal only, at each end while the original thickness or strength remains in the
centre. By this mode it will be perceived that we increase the strength where it
is most required and reduce where lightness is required.
$5
Handle bars" so constructed are more durable, and lighter than those hitherto
made which is essential.
Dated 29th May 1901
THOS. KENDRICK,
3, Cherry Street, Birmingham, Agent.
COMPLETE SPECIFICATION.
Improvements in "Handle Bars" of the kind employed in the
Steering or Controlling of Cycles.
We, WILLIAM PILKINGTON, CHARLES THOMAS BISHOP, and ANDERSON
BROWNSWORD, trading as "The Birmingham Climax Steel Tube Company," of
Catherine Street, Aston, Birmingham, do hereby declare the nature of our said
invention and in what manner the same is to be performed, to be particularly.
described and ascertained in and by the following statement:-
"
"
The object of our invention is the construction of "handle bars" such as are
used to cycles, in the steering or controlling the same. These handle-bars are
made from tube of metal of a required gauge, cach end having a suitable handle
fitted thereon they are centrally fixed to the pillar, the position is such that when
pressure is given by the rider to the handles the strain is conveyed near to the
centre that is near to where the handle-bar is connected to the pillar, and the result
is that a fracture or breakage frequently occurs. To remedy this is the object of
our invention which we will now describe.
We employ a tube of metal, of a required diameter, and of a thickness in gauge,
above that usually employed. We take two tapered mandrils and insert one in each
end of the tube, and by the process of drawing, or rolling, separate or combined,

page_text: we reduce the gauge of metal only, at each end while the original thickness or
strength remains in the centre. By this mode it will be perceived that we increase
the strength where it is most required and reduce where lightness is required.
And in order that this our said invention may be more fully understood, we shall
now proceed more particularly to describe the same, and for that purpose we shall
refer to the several figures on the sheet of drawings hereunto annexed, the same
letters of reference indicating corresponding parts throughout all the figures.
Fig. 1 is a longitudinal view in section of a tube approaching in diameter to the
tubes (but increased in gauge) as usually employed for "handle-bars" of cycles,
for the purpose of our invention.
Fig. 2 is a view in cross section of Fig. 1.
Fig. 3 is a longitudinal view in section of the said tube, the central portion being
the same gauge as Fig. 1, while the ends are reduced in gauge but not in diameter,
but elongated.
Fig. 4 is a longitudinal view in section, as Fig. 3, but bent or curved at each end
to receive the handles, and affixed to the socket on the handle pillar.
Fig. 5 is a view in section shewing the gauge taken at the line C. D.
Fig. 6 is a view in section showing the gauge taken at the line A. B.
a in Fig. 1 is the metallic, cylindrical tube of a required gauge, and equal its
whole length, but by the inserting of two tapered mandrils one at each end b, b,
and the employment of the process of rolling, or drawing, separate or combined
thereto, the gauge is gradually diminished at each end, but elongated as shown
at c, c, Fig. 3.
but bent
In Fig. 4 we show the ends gradually diminished in gauge as Fig. 3, c, c,
to form and receive the handles, of the kind used, a, being connected to the
socket d, by brazing, or secured in any other way.
Although by preference we form the "handle-bar" for cycles from one length
of tube as above set forth and shown on the drawings, we may if so desired form
the said "handle-bar," from two pieces of tube, the end of each being gradually
diminished as above set forth, the joining or uniting of the two parts into one, being
effected at the centre as A. B. Fig. 4, either at the time of the connecting to the
socket of the pillar, by brazing, or other suitable means.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is
In "Improvements in handle-bars' of the kind employed in the steering or
controlling of cycles
"
1st. From one metallic cylindrical tube of a required length and gauge the
gradual diminishing of the said gauge to each end, substantially as and for the
purpose as herein before described in the foregoing Specification and shown on
the sheet of drawings.
2nd. From two metallic cylindrical tubes, of a required length and gauge the
gradual diminishing of the said gauge to one end of each said tubes, substantially
as and for the purpose as herein before described in the foregoing Specification.
Dated 21st September 1894.
THOS. KENDRICK,
3, Cherry Street, Birmingham, Agent.