Year: 1897

page_text: (The personal pronouns "I" and "my" throughout the text are
accordingly altered to " we" and "our" respectively.)

page_text: Date of Application, 3rd Feb., 1897
Complete Specification Left, 3rd Nov., 1897-Accepted, 3rd Feb., 1898
An Improved Means of Transmitting Fower in venicies.
JOHN PILKINGTON, Ironmonger & General Dealer, 904, Rochdale Road, Man-
chester, County Lancashire, do hereby declare the nature of this invention to be'
as follows:-
My improvement consists of a band of spring steel or other suitable metal, con-
tinuous, bandsaw like, as being lighter and stronger than the chain. To prevent
sliping, may be pierced for projections on the wheels or may have a notched cr
wavy edge.
An Improved Means of Transmitting Power in Vehicles.
I, JOHN PILKINGTON, Ironmonger and General Dealer, of 904, Rochdale Road,
Manchester, in the County of Lancaster, 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 and accompanying
drawings:-
My invention relates to improvements in driving gear for transmitting motion
or power in vehicles. The gear is particularly applicable for transmitting rotary
motion for cycle or motor-car driving purposes.
According to my invention instead of using the ordinary pitch chain, and sprocket
wheels, I employ a thin steel band or riband, or other strong and flexible strip to
convey power from the driving wheel to the driven wheel.
This steel band carries studs, pins or buttons which engage holes, notches, ur
recesses formed in the driving and driven wheel, or as an alternative, the thin
steel driving band is perforated at intervals projections formed on the driving and
driven wheel engaging such perforations.
My invention will be more clearly understood and followed by a reference to the
annexed sheet of illustrative drawings in which:-
Fig. 1 represents a cycle gear constructed according to my invention
Fig. 2 is a plan view of a portion of the thin steel driving band.
Fig. 3 is a plan view of the driving wheel partly in section.
Figs. 4 and 5 are detail views.
alternative amaruman

page_text: In carrying my invention into effect I employ a flexible steel band a to transmit
the power from the driving wheel b to the driven wheel c.
The thin metal band is first coiled and tempered in its coiled form whereby it
is caused to grip the gear wheels better.
This flexible steel band a carries a line (or it might be more than one line) of
studs, pins, or buttons a' secured firmly to it and pitched at regular intervals apart.
The manner in which these studs are secured to the band will be apparent from
an inspection of Fig. 4, to which I will now refer. The stud a' is produced with
a reduced extremity which is passed through a holo of the same diameter formed
in the flexible steel band a.
A washer or disc is then slipped on to the projecting extremity, which
extremity is then finally rivetted down on the washer, and the stud firmly secured
to the steel band. The whole series of studs are so secured to the steel strip and the
complete band produced as shown in the drawings. As indicated in Fig. 5, instead
of rivetting the studs I might screw the extremities of the studs and employ nuts a
to complete the attachment.
To actuate the steel band herein described, I employ a driving wheel b, motion
being passed through the band a to the driven wheel c. These wheels b and c have
plain peripheries ', ' pierced with holes, notches, or recesses the pitch of
these holes being coincident with the pitch of the studs a' on the band a so that on
the revolution of the wheels b and c (the wheel being keyed to the crank shaft
as usual) the studs engage the holes in the wheels in regular sequence whereby the
required power is transmitted for driving purposes.
In case more than one line of studs, connected to a flexible band such as a, were
employed I might form the driving and driven wheels b, c with more than one
line or series of holes or perforations.
To prevent accumulation of dirt in the holes in the driven wheel I form holes
or outlets through the metal of the driven wheel the holes merging in the
outlets so that soil and foreign matter tending to choke the holes may readily
pass away. The holes in the driving wheel have no tendency to become choked.
To adjust the tension of and connect the band a around the gear wheels I employ
a making-up stud secured by lock nuts a the lock nuts being screwed up when
the band has been applied around the gear wheels and the required tension
obtained.
It is necessary of course to preserve the proper pitch of the making-up stud as
will be evident.
As a modification, I might as shown in Fig. 6 employ a flexible steel band d
perforated with a row of holes d, pins or projections on the driving and driven
wheels engaging such holes in the flexible steel band whereby the required motion
would be transmitted.
Gear constructed according to my invention is lighter cheaper and more flexible
than any at present in use.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is:.
1. As a means for transmitting power in vehicles a gear consisting of a thin
flexible metallic strip or riband having a series of attached and projecting studs in
combination with gear wheels formed with perforated peripheries the studs on the
flexible strip or riband engaging the holes in the gear wheels for the purposes and
substantially as described and shown.
2. As a means of transmitting power or motion for vehicle driving purposes
from a driving wheel such asb to a driven wheel such use the light flexible
metallic riband or strip a having projections a constructed and acting for the pur-
pose in the manner and substantially as described and shown.
3. A driving gear for transmitting power in vehicles comprising a light flexible
steel ribbon having perforations adapted to engage projections formed on or

page_text: carried by the gear wheels for the purpose and substantially as described with
reference to Fig. 6 of the drawings.
carried by the gear wheels for the purpose and substantially as described with
reference to Fig. 6 of the drawings.
Dated this 10th day of January 1898.
For the Applicant,
EK DUTTON