Year: 1886

page_text: Date of Application, 19th July, 1886.
Complete Left, 19th Apr., 1887.
Complete Accepted, 20th May, 1887.
1 EDWARD GREENFIELD Manufacturer in Wood Willow Cottage Halloway Place
Hastings Sussex do hereby declare the nature of this invention to be as follows:-
My Invention has for its object the production of an improved form of Velocepede
having only two wheels which by its structure shall form a safety bicycle; Either
one or both wheels may be so constituted, constructed, or geared, as to form driving
wheels and shall be so connected by an axle of any angle or variety, or section of
angles so that the wheels shall revolve, in other than direct or parallel lines, and when
driven shall form seperate tracks. By this arrangement, and disposition of wheels
combined, with the position of seat so balanced and adjusted as to find the centre of
gravity or Equipoise for the rider, a vehicle is formed both casy and safe to ride and
requiring no skill or exertion on the part of the rider to balance; and easier and
lighter to propel than three wheel Velocepedes now in general use. In its construction
any kind of wheels either of equal or unequal diameters may be used and any kind
of driving arrangement such as chains, wheels, cogs, &c. with rotating or lever pedals.
The approved method and arrangement may be adopted providing always that the
arrangement of wheels and adjustment of seat and position of the rider shall be in
harmony with the principle previously described.
Further a machine constructed upon these principles will possess all the comfort and
ease for either mounting or dismounting of Velocepedes having a greater number of
wheels.

page_text: Improvements in Safety Bicycles.
1, EDWARD GREENFIELD, of Willow Cottage, Halloway Place, Hastings, 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:
My Invention relates to an improved construction of a two track velocipede having
two wheels connected by an axle of any desired shape and formation other than that
of a right line, possessing the advantage of perfect steadiness safety in mounting or
dismounting, not to be found in any two wheeled velocipede as hitherto constructed,
and having the further merit of cheapness, lightness, ease of propulsion and less
friction.
In order that my Invention and the mode of carrying out the same may be more
readily understood I have illustrated it in the accompanying drawings in which,
Figure 1. is a side elevation of one type of machine according to my Invention.
Figure 2. is a plan or framework of same.
Figure 3. is a side elevation of another type of machine according to my Invention.
Figure 4. is a front elevation of the framework of same.
Figures 5 and 6 are two types of axles to be used in connection with a velocipede
according to my Invention.
Figure 7, shews a method of lengthening or shortening the said axles, and
Figure 8, is a form of axle which I adopt for application for a description of bicycle
to carry two persons, as in the case of what is known as a "Sociable tricycle."
To each of the two different types of axles shewn in Figures 5 and 6 two wheels of equal
or different diameters may be attached so as to form in combination with the position
of the rider's seat the requisite balance commensurate with safety in driving at a high
speed. The position of the rider's seat,-which may be either fixed or adjustable as
desired, is determined in all types of machines constructed according to my Invention
at a point governed by the relative positions of the two wheels, that is to say on a line
drawn between the centres of the two cycles, which position will be controlled by the
distance apart and nearness to or remoteness from each wheel in opposite planes
respectively; in any case so adjusted or to be so adjustable as to give the requisite
equipoise.
The centre of equipoise may be so made as to be either fixed or movable as desired;
in the latter case one of the wheels will be arranged so as to allow of displacement or
adjustment (Figures 1 and 7) in which the relative position of the two wheels A B is
capable of being altered by means of the slot C which however instead of being at the
end of the bar D may be along the top of same as indicated by the dotted lines
Figure 1 or I may employ the method shewn in Figure 7, in which it will be seen
that the bar D can be moved any required distance through the head or eye E and
fixed by the set screw F; or, the head or eye E can be made as shewn to telescope
in the axle H; thus it will be seen by this method I am enabled to regulate the

page_text: distance apart of the two wheels. Or, further I may adopt the method shewn in
Figure 9 in which a grooved and slotted tube is employed.
In Figures 1 and 2 the upright tube I is either fixed or adjustable to the gear rod
or bar Jas before mentioned.
"
Figures 3 and 4 represent a modified type of what is known as "Singers automatic
front steerer tricycle, the main existing parts in which are retained, but the relative
positions of such parts are altered to meet the requirements of my Invention as
aforesaid. It will of course be understood that the break, steering and driving
apparatus and other accessories usually present in existing machines can be used as
heretofore.
In figure 8 I have shown an arrangement to allow of the velocipede according to
my Invention being used as a "Sociable," the position of the seats in such machine
being as shown by the dotted lines A. B. C. D.
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:
First. In a two wheel double track velocipede the use or adoption of wheels
centring on axles of any shape and formation other than a straight line, substantially as
herein set forth and shown in the accompanying drawing.
Second. A two wheeled velocipede to carry one or more persons in which the riders
seat or the seats of the riders is or are found or determined either by adjustment or at
a fixed point and possessing the requisite equilibrium for safe driving, substantially as
set forth.
Third. The construction and disposition of the several parts of a two wheeled
velocipede such as herein described forming a safety bicycle, possessing the merit of
stability and perfect security in mounting and dismounting substantially as herein set
forth and shown in the accompanying drawing.
Dated this 10th lov of Annil 1987
JAMES STEVENSON,
Gray's Inn Chambers,
20, High Holborn, London, W.C.,
Agent for Applicant.