Improvements relating to Bicycles.
Year: 1891

page_text: Date of Application, 8th Apr., 1891
Complete Specification Left. 6th Jan., 1892-Accepted, 27th Feb., 1892
PROVISIONAL SPECIFICATION.
Improvements relating to Bicycles.
I JEAN AUGUST JACOBS of 15 Seymour Street Euston Square in the County
of Middlesex, Locksmith and Metal Worker do hereby declare the nature of this
invention to be as follows:-
safety
This invention relates to bicycles in which the two wheels are normally in the
same plane and principally to the types of bicycles generally known as
bicycles" and it consists in a construction capable of being brought into action
either when riding or at any time with the object of supporting the bicycle in an
upright position when arrived at rest.
For this purpose preferably near the bearings of one of the wheels are pivoted
on the fork, one on each side, two arms having small wheels journalled in their
outer ends, preferably with elastic tyres on the said wheels or the said arms may
be in some cases pivoted on the body. The method of pivoting is such that when
the arms are raised out of action to a suitable height from the ground they lie
snugly together and do not project but when they are lowered they spread one
from another so that the wheels thereon come in contact with the ground at a
suitable distance one on each side of the general centre plane of the bicycle and
serve to hold the latter upright when it comes to rest.
To enable a rider to bring the arms into their downward and supporting position
when he is about to stop or by reason of traffic on the road believes that it will be
necessary to stop for a period the arms are moved by toggle jointed or other
levers worked from or by the handle bar or otherwise so that by straightening the
levers the arms are brought into action and are also locked by the straight position
of the toggle against the tendency of their passage over the ground to throw them
back.
They may be held out of action by springs or by reversing the lever when the
toggle is released.
Deted this 8th day of Anvil 1801
HERBERT & Co.,
Agents to Applicant.
COMPLETE SPECIFICATION.
Improvements relating to Bicycles.
1, JEAN AUGUST JACOBS of 15 Seymour Street Euston Square in the County
of Middlesex Locksmith and Metal Worker 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 bicycles in which the two wheels are normally in the same
plane and principally to the types of bicycle generally known as safety bicycles,
and it consists in a construction capable of being brought into position when riding
or at any time with a view to supporting the bicycle in an upright position when
arrived at rest.
Besides affording a means for supporting the bicycle when the rider is not upon
it, it allows a rider to stop at any time without dismounting from the bicycle and
does not interfere in any way with the riding of the bicycle. A bicycle fitted with
this construction or attachment is very suitable for use in crowded traffic where a
rider has frequently to stop for a period, also for military cyclist purposes.

page_text: The invention consists in pivoting on a suitable part of the framework of any
bicycle two arms, one on each side these arms carrying journalled in their ends small
wheels and adapted to be moved on their pivots by suitable lever gear within reach
of the rider seated on the bicycle so that by a simple movement the aforesaid arms
may be swung down so that the wheels almost or quite touch the ground on each
side of the machine respectively and so support the machine, or on the other hand
may be swung upward out of action when the rider has started forward again.
The accompanying drawing illustrates this invention as applied to a bicycle of an
ordinary safety type.
Fig. 1 is a side elevation Fig. 2 a plan and Fig. 3 a rear elevation of this
bicycle.
Figs. 4 to 7 are detail views of parts.
On a suitable part of the frame A preferably near the bearings of the rear
wheel B are pivoted one on each side the two arms C C. This may be done by
means of the plates a shown in Fig. 6 provided with the slot for attaching it to
the frame by a screw or screws and with the pin c to act as pivot to the arm C.
The head of this arm is shown in Fig. 4, the lower end of the arm which
carries the wheel D is shown in the same figure. The parts a dd' are preferably
of cast metal. The arm C is composed of the head the end bearing socket d
and the two rods or tubes d² d² preferably bent as shown in Fig. 1 to give strength
to the arm in the plane of the movement of the bicycle. In the head d is the
circular recess d³ with the cross wall d. On the plate a is the lug a¹, this lug lies
in the recess d³ and serves as a stop against which the wall d* rests when the arm
is in its lower position as shown in the drawing.
The plane of the bearing surfaces of the plate a and head d to which the pivot c
is perpendicular, is not parallel to be general plane of the bicycle, being inclined
thereto so that the arms C spread from the wheel B when lowered, but lie as close
to the frame A as possible when raised.
For the sake of lightness and strength I prefer to make the wheels D as shown
in Fig. 5 in section. A rubber tyre e circular in cross section is supported between
the flanges of two circular steel plates e e¹ bent to shape and rivetted together
over a sleeve of gun metal e2 which forms the bearing of the wheel on the fixed
shaft e³.
On a socket in the frame A near the handles of the bicycle or otherwise
within convenient reach of the rider is pivoted a lever G one end of which forms
a handle and the other is connected by two rods J to the arms CC respectively.
The lever G has an arm toggle jointed with a spring bearing on the lower member
so as to bend the toggle and throw the lever G into the one or other of its extreme
positions as in Fig. 7.
I do not confine myself to the exact construction here shown, it is obvious that
the frame may be varied in shape and the arms C made longer or shorter accordingly,
also that any form of wheel D may be employed and other mechanism for moving
the arms C. Thus for ladies' use, where the lever G and rods would be in their
present position inconvenient, the rods J may be in two sets connected to respectively
bell crank levers pivoted on or near the treddle shaft.
The lever G may be made with a stop or crochet but the spring and toggle g is
a more convenient construction.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed I declare that what I claim is.
1. The combination of two pivoting supporting arms C C one on each side with
wheels in the ends of said arms and adapted to be folded downward and outward in
a rearward direction into their lower position for supporting the bicycle and to be
folded inward and upward in a forward direction when out of use substantially as
described.
2. The combination of two arms CC pivoted in oblique pivots, wheels D in the

page_text: outer ends of said arms, the lever G with spring toggle g and rods the whole
substantially as and for the purpose set forth.
Dated this 6th day of January 1891.
HERBERT & Co.,
18, Buckingham Street, Strand, London, W.C., Agems to Applicant.