An Antivibration Device for the Handle or Steering Bar or other Parts of a Velocipede, Autocar, or other Vehicle or Machine.
Year: 1896

page_text: Date of Application, 1st June, 1896
Complete Specification Left, 1st Apr., 1897-Accepted, 15th May, 1897
ISIONAL SPECIF
An Antivibration Device for the Handle or Steering Bar or
other Parts of a Velocipede, Autocar, or other Vehicle or
Machine.
I GEORGE CHAPPELL of 5 Great Stanhope Street Mayfair, W. London,
Mechanical Engineer do hereby declare the nature of this invention to be as
follows:-
This invention is intended to provide a simple device which may be fitted to or
within the steering or handle bar of a velocipede autocar or other vehicle or
machine or in general in such places where vibration is to be overcome or reduced
such device being adapted to cushion the said handle bar or equivalent part both
upwardly and downward, that is to say in both directions in the line of its
extension.
Such device presents the advantages of being enclosed and of being fitted to
single double or triple steering heads or other parts without altering in any noticeable
manner the exterior form and appearance of said parts.
Such handle bars or parts being already made with a downwardly directed
tubulur extension, or in the case of triple steering heads, made with two parallel
downward extensions, I provide for such extension or each of them a rod which
projects axially into the extension from the fork crown or other base plate, but is
not connected to the said extension. This rod is screw threaded for the whole or
the greater part of its length and having first loosely slid thereon an annular cap
intended to close the lower end of the extension, I place successively on the rod
a coiled spring, a threaded disk or washer, a second threaded disk or washer, and
a further coiled spring. Having adjusted the disks to the requisite height on the
rod to serve respectively for the abutment of the ends of the springs, the one
above the upper disk, the other below the lower disk, the handle bar or equivalent
device is slid over the whole and forced down to bring the upper spring
into compression, and the before mentioned annular cap is brought up by force if
necessary and screwed into or on the lower end of the extension of the handle bar
or other part, screw threaded to receive it, or otherwise fastened adjustably if
desired thereto. Such device is inclosed in the outer tube on each side of the
triple steering head or in the equivalent hollow spindle of the single head in which
latter case suitable means are provided to prevent the handle turning in the said
spindle.
There may be placed above the upper spring an air chamber.
HERBERT HADDAN & Co.,
Agents to Applicant.

page_text: An Antivibration Device for the Handle or Steering Bar or
other Parts of a Velocipede, Autocar, or other Vehicle or
Machine.
I, GEORGE CHAPPELL, of 5 Great Stanhope Street, Mayfair, W. London,
Mechanical Engineer, 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:-
This invention is intended to provide a simple device which may be fitted to or
within the steering or handle bar of a velocipede auto-car or other vehicle or
machine or in general in such places where vibration is to be overcome or reduced,
such device being adapted to cushion the said handle bar or equivalent part both
upwardly and downward, that is to say in both directions in the line of its
extension
Such device presents the advantages of being enclosed and of being such that it
can be fitted to single, double or triple steering heads or other parts without
altering in any noticeable manner the exterior form and appearance of said
parts.
In the annexed drawing,
Fig. 1 is a front elevation partly in section of a triple head provided with the
improvements.
Fig. 2 is a similar view of a modification applied to a single head in place of the
ordinary handle bar.
Such handle bars or parts being already made with downwardly directed
tubular extensions A, I provide for such extension or each of them a rod B which
projects axially into the extension A from the fork crown C or base plate C
but is not connected to the said extension A. This rod B is screw threaded for
the whole or the greater part of its length and having first loosely slid thereon an
annular cap D intended to close the lower end of the extension A, I place
successively on the rod a coiled spring E, a threaded disk or washer F, a second
threaded disk or washer G and a further coiled spring H. Having adjusted the
disks F and G to the requisite height on the rod B to serve respectively for the
abutment of the ends of the springs E and I the one above the upper disk
the other below the lower disk, the handle bar extension A or equivalent device
is slid over the whole and forced down to bring the upper spring H into
compression and the before mentioned annular cap D is brought up by force if
necessary and screwed into or on the lower end of the extension A. of the handle
bar or other part screw threaded to receive it, or otherwise fastened adjustably
if desired thereto. Such device is enclosed in the outer tube J on each side of the
triple steering head. or in the equivalent hollow spindle of the single head in which
latter case suitable means are provided to prevent the handle turning in the said
spindle.
In Fig. 1 the tubes J are screw threaded to be fastened on screw threaded
bosses Jformed on or with the fork crown K, and these tubes are loose above in
the collar L which may be caused to grip them tightly (after they are screwed on
the bosses J¹) by setting up the bolts M.
In Fig. 2 the tubes J may be solidly fastened in the collar or cross head L
which may also be solidly connected with the central pillar N which is adjustable
in the steering head socket and may be secured at a higher or lower position by
the cap in exactly the same manner as an ordinary handle bar. Instead of

page_text: the tubes J being removable from fixed bosses, the end plags C¹ are removable
from the tubes J.
This construction could also be varied by making the tubes J long enough to
extend down to the fork crown C and attaching them by a suitable clip fitting to
the crown C or about the neck C 2 or otherwise, thus having the appearance and to
some extent the effect of a triple head. Adjustment is then obtained as in Fig. 1
by screwing up or down the nuts F G. By screwing these nuts both in the same
direction the handle bar will be raised or lowered for an equivalent distance while
the amount of spring action remains the same, by screwing the nuts apart the
spring action is made stiffer and by screwing them together it is made more
elastic.
There may be placed above the upper spring H an air chamber.
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 :-
1. In a cycle, autocar or the like an antivibration device in which spring action
is obtained in both directions in telescopically sliding tubes, consisting in a rod or
central holder connected to one member and carrying nuts F G with springs E
and H interposed between said nuts and the two ends of the other member the
said springs having bearing in opposite directions in the latter, the said device
being constructed so that the tension of each spring is adjustable.
2. The above construction in a handle bar for a triple head or to be fitted in
replacement of an ordinary handle bar substantially as set forth.
Dated this 1st day of April 1897
HERBERT HADDAN & Co.,
18, Buckingham Street, Strand, London, Agents to Applicant.