Improved Combined Treadle and Hand Driving Mechanism.
Year: 1891

page_text: Date of Application, 25th May, 1891
Complete Specification Left, 25th Feb., 1892-1ccepted. 26th Mar., 1892
PROVISIONAL SPECIFICATION.
Improved Combined Treadle and Hand Driving Mechanism.
I, FREDERICK WILLIAM ZIMER, of Mortimer Road, Dalston, Gentleman, do
hereby declare the nature of the said invention to be as follows:-
This invention relates to a development of the invention described in the Specifi-
cation of the Letter's Patent No. 7427 of 1889, granted to me and bearing date the
3rd day of May, 1889.
The special objects of the present improvements are;-to enable the leverage of
the connections between the double handle bar and the clutch upon which it
operates to be readily varied according to the requirements of the cyclist ;-to
enable the raising of the double handle-bar to be, if required, continued beyond a
single depression of each pedal lever and during the depression of both pedal
levers; and to enable the clutch mechanism to be thrown out of action or rendered
inoperative when required so as to permit of the axle on which the clutch is mounted
being turned backwards without being gripped by the clutch.
In accordance with the present improvements, I connect the double-handle bar
(which can be lifted and lowered about its horizontal axis and also turned about the
vertical or inclined axis of the fork) with the clutch to be operated, by means of a.
lever, which is adjustable in length and leverage relatively to the double handle-
bar, and is so mounted relatively thereto as to be actuated by the vertical
reciprocations thereof but not by the said turning movements thereof, so that in all its
movements it will remain in or in about the plane of the clutch and by connecting
such lever to a rod, to the other end of which is attached a chain or the like, which
is passed around and secured to the periphery of the clutch. Or the lever may be
connected to the clutch by separate rods and chains respectively connected as
aforesaid. The clutch is made of a stepped-formation with parts of different
diameters, and the end of the chain may be connected to any one of such stepped
surfaces as required. I thus have a facility of adjustment both at the connection
of the lever with the double handle-bar and of the connecting rod with the clutch.
In order to reverse the clutch at the lowering of the double handle-bar for its next
actuation by the raising of the latter, I apply a suitable operating spring thereto,
or I pass a chain around a suitably supported pulley and fasten its ends respectively
to the clutch and to the said rod. In lieu of separate chains for such purposes I
can use but one chain for both purposes; and, if necessary, in any of such cases, I
can apply a spring so as to keep the connecting rod and connecting chain sufficiently
rigid and so as to cause the reciprocating movements to immediately turn the
clutch either so as to operate the same or to reverse it according to the movement
of the double handle bar. Or I construct the rod with a racked lower part and
cause it to gear with a wheel attached to the clutch, or I otherwise cause such parts
to have the required motion.
I also apply to the clutch a device formed with extensions projecting between the
adjacent rollers of the clutch and with outer projecting extensions by which it can
be pushed pulled or otherwise operated as required so as to cause its inner pro-
jections to engage with the adjacent rollers and remove them from engagement.
with the inner excentric surfaces of the clutch casing, so that they may be kept out
of action as long as required, which will permit of the axle (on which the inner
collar or hub of the clutch is keyed) being turned backwards without the clutch
gripping the same.
Dated this 22nd low of Max 1801
DAY, DAVIES & HUNT.
321, High Holborn, London, W.C., Agents for the Applicant.

page_text: improved comorded Ireadre ада папа Driving меспапиеш.
I, FREDERICK WILLIAM ZIMER, of Mortimer Road, Dalston, 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:-
This invention relates to a development of the invention described in the Specifi-
cation of Letters Patent No. 7427 of 1889, granted to me on the 3rd day of
May, 1889.
The special objects of the present improvements are.. to enable the leverage of
the connections between the double handle-bar and the clutch upon which it operates
to be readily varied according to the requirements of the cyclist; and to enable
the raising of the double handle-bar to be, if required, continued beyond a single
depression of each pedal-lever and during the depression of both pedal-levers.
On the accompanying drawings;—
Figure 1, represents, in sectional elevation, part of a bicycle adapted with the
present improvements.
Figures 2, to 7, are detail views, on a larger scale.
Figure 2, represents, in sectional elevation, the connection of the double handle-
bar with the adjustable lever by means of which the clutch on the pedal-shaft is
actuated.
Figure 3, represents part of such devices, in front elevation.
Figure 4, represents part of such devices, in plan.
Figures 5, represent, in sectional clevation, details of the connections by means of
which the adjustable lever actuates the clutch.
Figure 6, represents a front view of the clutch with the cover plate removed, and
Figure 7, represents a sectional elevation of the clutch.
8, represents the double handle-bar which is mounted in forked bearings 9, rising
from the steering-stem or rod 10, so that it can be used for steering purposes, but is
free to be reciprocated about its horizontal axis in such bearings by hand as
described in the Specification of my said former Letters Patent.
According to the present improvements, the double handle-bar 8, is connected to
the clutch 11, (which reciprocates about the pedal-shaft 12.) by an adjustable
lever 13, and adjustable connections 14, and 27, to 41.
At a part above the steering-stem, the axis of the handle-bar is fitted with a
collar 15, fast thereon, and on the, front of the collar is formed a. nose-piece 16.
To the underside of the nose-piece there is pivoted by a screw-pin 17, a lever arm 18,
which is formed with a projecting stay part 19, and is connected to an ordinary
spring or finger-pull carried by one of the arms of the handle-bar, by a connecting
rod 20, pivoted to the lever 18, by a screw-pin 21.
The upper part of the steering-stem, immediately below the nose-piece 16, is
made with a stay or bearing-piece 22, which is fitted to the head of the screw-
pin 17, and to the face of the stay part 19.
Such parts 15, to 22, permit of the handle-bar, when in its highest position,, as
represented in Figure 2, being rigidly locked and used as an ordinary handle-bar
without operating the clutch.
The aft-side of the collar 15, is pivotally connected by a screw-pin 23, to the
fore-end of the lever 13, the, aft-part of which is made telescopic, the outer part
being fitted with a collar 24, carrying a pivoted cam-piece 25, adapted,, when turned
into the position represented in Fig. 2, to engage in slots 26, spaced apart in the
inner telescopic part of the lever, and so to secure the parts of the lever together
in any position in which they may have been adjusted by slipping the one part
within the other.

page_text: Such means 15, and 23, to 26, permit of the lever 13, being adjusted in length
and leverage relatively to the double handle-bar as may be most convenient to the
rider, and of the handle-bar being laterally turned for steering purposes without
correspondingly affecting the lever 13, which will remain in or in about the plane
of the clutch 11.
The lever 13, is connected to the clutch 11, by the following adjustable devices.
A rod 14, (formed with a ball 27, which is retained by a screwing-piece 28, in a
slotted socket 29, formed at the end of the lever 13,) screws into a cross-bar 30, and
is provided with set nuts 31. From the cross-bar 30, depend two rods 32, which
pass one on each side of the frame 33, (which latter aids in preventing the lever 13,
from being shifted by the lateral movements of the handle-bar,) and are connected
at their lower ends to a flexible chain 34. The chain 34, may be connected to the
periphery of a plain or stepped clutch, with a continuing part connected to a helical
spring depending from the frame 33; but the chain preferably engages with a
clutch 11, formed with teeth 41, (vide Figures 1, 6 and 7,) and is continued or
connected by a rod or wire 35, to a chain 36, which passes over a guiding pulley 37,
secured to the frame 33, and is connected by a rod 38, to a pivoted cross-bar 39,
connecting the rods 32. The rod 38, is screwed at its connection with the cross
bar 39, and provided with set nuts 40.
Such means 14, and 27, to 41, permit of the connections between the lever 13,
and clutch 11, being adjusted according to the alteration of length of the lever 13,
and to the wear of the parts; and of the raising of the double handle-bar, being
continued during the depression of both pedals, and of the power being applied at
a tangent to the periphery of the clutch; and cause the clutch to be automatically
reversed at each lowering of the double handle-bar for its next actuation by the
raising of the latter.
42, represents a chain-connection from the clutch to a driving axle. The clutch
may, however, be applied to the driving axle or to the steering axle.
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:
(1.) The hereinbefore described means of adjusting the leverage of the con-
nections between the double handle-bar and the clutch upon which it operates, and
of enabling the raising of the handle-bar to be continued during the depression
of both pedal-levers.
(2.) The means herein before described, consisting of the parts 15, and 23, to 26,
for adjusting the lever 13, in length and leverage relatively to the double handle-
bar, and enabling the latter to be used for steering purposes without correspondingly
affecting the lever 13.
(3.) The means hereinbefore described, consisting of the parts 14, and 27, to 41,
for adjusting the connections between the lever 13, and clutch 11, according to the
alteration of length of the lever 13, and to the wear of the parts between the lever
and clutch, and for enabling the raising of the double handle-bar being continued
during the depression of both pedals, and for enabling the power to be applied at a
tangent to the periphery of the clutch, and for automatically reversing the clutch
at each lowering of the double handle-bar for its next actuation by the raising of
the latter.
(4.) In combination, a lever operating with the double handle-bar, and a recipro-
cating clutch connected with or loosely mounted on the axle to be rotated, with
adjustable flexible connections so arranged as to apply the power at a tangent to the
periphery of the clutch, and as to automatically reverse the clutch at the lowering
of the lever.
(5.) The means hereinbefore described, consisting of the parts 15, to 22, for
rigidly locking the double handle-bar in its highest position when desired to be
used as an ordinary handle-bar.

page_text: (6.) The construction of a reciprocating clutch with interior excentric roller
surfaces and with exterior teeth adapted to engage with chain gearing.
Dated this 24th day of February 1892.
DAY, DAVIES & HUNT,
321, High Holborn, London, W.C., Agents for the Applicant.