Improvements in or relating to Bicycles.
Year: 1896

page_text: Date of Application, 28th Feb., 1898
Complete Specification Left. 16th Mar., 1896-Accepted. 23rd May 1896
GOLI
7030
Complete Specification Left. 16th Mar., 1896-Accepted. 23rd May 1896
PROVISIONAL SPECIFICATION.
Improvements in or relating to Bicycles.
ROMEO GRILLI of 15 Sumscaia, Charkoff, Russia, Cycle Manufacturer do
hereby declare the nature of this invention to be as follows:-
This invention has for its object a particular construction and arrangement of
the framing and other parts of a bicycle, either as a complete machine, or
preferably as separate parts for attachment to a safety bicycle of ordinary
construction to form same into what may be termed a double breasted machine for
carrying two persons, one on each side of the main frame.
Moreover to so construct and adapt the separate parts to a bicycle that each
person has a separate set of cranks by which to propel the machine, the additional
cranks and pedals being so arranged in connection with the usual cranks, pedals and
chain gear of a safety bicycle that it can be converted and used either as a
single or a double breasted machine without interfering or altering its working
parts.
In carrying my invention into practice as applied to a safety bicycle, I provide
side bars which are half clipped to the neck of the front fork by suitable nuts and
bolts, and by a reverse curve backwardly and downwardly support a bracket which
carries the extra cranks co-axially with the bottom bracket of the main frame of
the machine.
The said additional side bars are prolonged backwardly from the extra pedal
bracket and slightly upwardly and inwardly to the axle of the chain wheel to which
it is secured by a nut.
Additional saddle posts upstand from the side bars parallel with the main saddle
post to which a telescopic horizontal tic bar is half clipped in the same manner as
to the front fork neck.
The saddle tees are so arranged as to be capable of two adjustments vertically to
suit the length of leg of the rider and laterally from or to the main saddle post to
accurately balance the weight of the respective riders with respect to the centre
line of the machine.
The outside crank on each side bar carries a pedal, but the inside crank which
may be of lighter construction is connected to the pedal of the machine to be
converted and may be so slotted that should the extra pedal brackets not be
co-axial with the main pedal bracket the consequent eccentric motion will be taken
up in the said slot and prevent any binding or jumming of the working parts.
The side bars are a sufficient distance from the main frame of the bicycle to allow
of the free movement of the riders leg and rotation of the double cranked inside
pedal.
Tie rods from the top of the main saddle post to the back end of the side bars
may be provided to impart extra rigidity to the machine if required and I may also
provide adjustable and removable hand grips to the front fork neck for convenience
of pose when riding in double breasted order.
Inasmuch as the front of the side saddles are unhampered by tie rods, the
machine is so open, that persons of either or both sexes can ride the machine and
by the great range of adjustability as regards height and weight children can also
be accomodated without upsetting its balance.

page_text: When the machine is made as a whole the half clips are of course dispensed with,
the side bars are brazed or otherwise secured in their respective positions.
Dated this 28th day of Wohmuan 100
H. GARDNER,
Patent Agent, 166 Fleet Street, London,
Agent for the said Romeo Grilli.
Improvements in or relating to Bicycles.
1, ROMEO GRILLI, of 15 Sumsenin, Charkoff, Russia, Cycle Manufacturer, do
hereby declare the nature of this invention and in what manuer the same
is to be performed to be particularly described and ascertained in and by the
following statement:-
This invention has for its object, a particular construction and arrangement of
framing as separate parts for attachment to a safety bicycle of ordinary construction
to form same into what may be termed a double breasted machine for carrying two
persons one on each side of the main frume.
Moreover to so construct and adapt the separate parts to a bicycle that each
person has a separate set of cranks by which to propel the machine, the additional
cranks and pedals being an arranged in connection with the usual cranks, pedals,
and single chain gear of a safety Licycle that it can be converted and used either
as a single or a double breasted machine without interfering or altering its working
parts.
In carrying my invention into practice as applied to u safety bicycle, I provide
side bars which are half clipped to the neck of the front fork by suitable nuts and
bolts and by a reverse curve backwardly and downwardly support a bracket which
carries the extra cranks co-axially with the bottom bracket of the main frame of
the machine.
The said additional side bars are prolonged backwardly from the extra pedal
bracket and slightly upwardly and inwardly to the axle of the chain wheel to
which it is secured by a nut.
Additional saddle posts upstand from the side bars parallel with the nmin saddle
post to which a telescopic borizontal tie bar is half clipped in the same manner as
to the front fork neck.
The saddle ties aro so arranged as to be capable of two adjustments vertically to
suit the length of leg of the rider and laterally from or to the main saddle post to
accurately balance the weight of the respective riders with respect to the centre
line of the machine.
The outside crank on each side bar carries a pedal but the inside crank which may
be of lighter construction is connected to the pedal of the machine to be converted
and may be so slotted that should the extra pedal brackets not be co-axial with the
main pedal bracket the consequent eccentric motion will be taken up in the snid
slot and prevent any binding or jamming of the working parts.
The side bars are of sufficient distance from the main frame of the bicycle to
allow of the free movement of the riders legs and rotation of the double cranked
inside pedal.
Tie rods from the top of the main enddle post to the back end of the side bars
may be provided to impart extra rigidity to the machine if required and I may also
provide adjustable and removable band grips to the front fork neck for convenience
of pose when riding in double breasted order.
funsmuch as the front of the side saddles are unhampered by the rods the
machine is so open that persons of either or both sexes can ride the machine and
by the great range of adjustability as regards height and weight children can also
be accommodated without upsetting its balance.

page_text: When the additional frame is made as a whole the half clips are of course
dispensed with, the side bars are brazed or otherwise secured in their respective
positions.
My invention is clearly represented by the annexed drawings.
Figure 1, a plan of a safety bicycle to which my invention is applied.
Figure 2 a perspective elevation from the rear side showing the new or added.
parts to a safety bicycle which I show by dotted lines.
A, A, are two multiple sockets as bottom brackets to the front of which the
forwardly and inwardly curved bars B, B, are affixed, said bars terminating in
other sockets C, C, forming part of half clip plates D, D, embracing the front
frame tube E and secured rigidly by bolts and nuts F, F, passed through the flanges
thereof.
G, G, are rearwardly arranged bars from the sockets A, A, and terminating in
collars H, H, having bars I, 1, at or about right angles for attachment by the
lugs J, J, to the rear axle K outside the ordinary back fork which is part of the
bicycle proper.
L, L, are upright rods affixed to the sockets A, A, these rods are rearwardly
inclined and are united by a cross bar M and clips N, N, to enable the rods N', N₁,
to be fixed at the desired height. This cross bar has a central collar P with a
web projecting forwardly and terminating in a half round clip which together
with a face plate R forms the attachinent to the centre stay of the bicycle.
The two uprights N1, N1, at the upper ends have clip flanges S, S, within which
the longer legs of the Ĺ pins T, T, can be set horizontally for carrying the saddles
on which the riders sit, the saddles occupying a position indicated by dotted lines
at Figure 1.
The sockets A, A, for the purpose of supporting the additional crank axles
constitute brackets in the line or co-axially with the ordinary crank bracket of
the machine and to the cranks U, U, pedals V, V, are mounted in the usual
manner for transmitting motion by the chain gear W to the rear drive wheel X.
I fasten two struts Y, Y, to the extremites H, H, of the bars G, G, these being
connected to a clip Z secured to the centre stay, and to enable the two riders
to have handles for steadying themselves on the machine 1 attach to the stem of
the front fork a couple of short rod handles a, a, the inner hands of the two riders
being crossed to give the necessary balance to their arms when mounted.
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 :-
Affixing side bars B, B, G, G, reaching from the axial line of rear driving
wheel to the front frame tube E with intervening sockets A, A, uprights L, L, N',N',
for carrying L pins and connected by a cross bar M, these being so arranged and
applied to an ordinary safety rear driving bicycle in two distinct sections affixable
to the main frame that the two riders sitting abreast on either side of the bicycle
main frame may operate separate pedals for separate or conjoint propulsion of the
ordinary chain gear as and in the manner specified with reference to the annexed
drawings.
The 16th day of March 1896
H. GARDNER,
Patent Agent, 166 Fleet Street, London,
Agent for the said Romeo Grilli.