Improvements in and relating to Velocipedes.
Year: 1889

page_text: Date of Application, 16th July, 1889
Complete Specification Left. 3rd Apr.. 1890-Accepted, 10th May. 1890
PROVISIONAL SPECIFICATION.
Improvements in and relating to Velocipedes.
We, LOUIS BARROW and CHARLES HENRY GUEST, trading as Guest and Barrow,
of Tower Works, Tower Road, Birmingham, in the County of Warwickshire, Cyclo
Manufacturers, do hereby declare the nature of this invention to be as follows:-
Our invention relates to a novel form of frame for velocipedes having a single rear-
driving wheel, and it has for its objects increased rigidity and lightness.
+
Our new frame is constructed in the following manner;-The members of the said
frame are preferably made of rim steel such as is used for the wheels of velocipodes.
The frame consists of sixteen members arranged as follows:-
1. The neck or socket for the steering joint.
2. The axle of the driving wheel.
3. A transverso tube or bar to carry the bearings for the pedal crank axle.
4 and 5. Two members running from the lower end of the neck or socket to the
transverse tube or bar to carry the pedal crank axle.
6 and 7. Two members running from the top end of the neck and socket to the
transverse tube or bar carrying the pedal crank axle.
8.and 9. Two members running close together from the top of the neck or socket
to a bracket for carrying the seat pillar.
10 and 11. Two members running from the bracket for seat pillar to the transverse
tube or bar carrying the pedal crank axle.
12 and 13. Two members running from the bracket for the seat pillar to the axle
of the driving wheel.
14. 15 and 16. Three members running from the axle of the driving wheel to the
transverse tubo or bar carrying the pedal crank axle. Two of these members run
from opposite ends of the axle of the driving wheel to points on the transverse tube or
bar equidistant from the centre thereof, and the other member runs from one end of
the axle of the driving wheel to an extension of the transverse tube or bar on the
opposite side of the machine to that on which the driving wheel is placed, thus taking
up the equivalent space on the opposite side of the machine, and staying the trans-
verse tube or bar against the pull of the chain.
The several members of the frame are preferably bolted together those running to
the transverse tube or bar being adapted to fit on the said bar and to be locked
together by nuts on the ends of the said bar.
Dated this 16th day of July 1889.
ROBT. ED. PHILLIPS; M.I.M.E.,
Consulting Engineer and Patent Agent,
Royal Courts Chambers, 70, 71 &.72, Chancery Lane, London, W.C.,
Agent for the Applicants.
COMPLETE SPECIFICATION.
Improvements in and relating to Velocipedes.
We LOUIS BARROW and CHARLES HENRY GUEST trading as Guest and Barrow of
Tower Works, Tower Road, Birmingham, in the county of Warwickshire, Cyclo
Manufacturers, 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 :-
Our invention relates to improvements in the frames of those velocipedes, having
two wheels, one in front of the other, the front one being operated to steer, and the
rear one to drive the machine, (commonly known as rear-driving safety bicycles) and

page_text: it consists in forming that part of the frame carrying the driving wheel, pedal crank
axle, and seat for the rider, of iron or steel bars of a crescent or other suitable section,
and in bolting or rivetting the several parts together. The objects of our improve-
ments are first, to provide a frame which can be constructed without skilled labour,
secondly, to provide a strong and rigid frame out of bar iron or steel, or its equivalent,
and thirdly to reduce the cost of manufacture.
We attain these ends in the manner illustrated in the accompanying drawings in
which :-
Figure 1. Sheet No. 1. is a view in side elevation of a rear-driving safety bicycle,
the frame of which is constructed according to our invention. Figure 2. Sheet No. 2
is a view in sectional elevation, on an enlarged scale, of our improved frame.
Figure 3. Sheet No. 2. is a view in sectional plan on an enlarged scale, on line z. z.
Figure 2. Sheet No. 2. and Figure 4. Sheet No. 2 is a view in front elevation on an
enlarged scale of the frame.
Throughout the several views similar parts are marked with like letters of
reference.
The frame carrying the driving wheel, pedal crank axle, and seat for the rider
consists of sixteen members, thirteen of which are formed of lengths of bar iron or
steel of a crescent or other suitable section and numbered in the drawings 1 to 13
inclusive. The other three parts consist of a central spindle 14 forming part of the
steering joint or head, the axle 15 for the rear driving wheel, and a cross bar 16
carrying the bearings for the pedal crank axle. These form the essential parts of our
improved frame. The part of the frame carrying the steering wheel presents no novel
features and may be of the well-known type.
The several parts of the frame are arranged and connected together in the following
manner: The cross bar 16 is preferably formed of increased diameter at or about
the centre of its length to receive a swinging bracket 17 carrying the bearings 18
for the pedal crank axle. Onto the reduced ends of the cross bar are placed the ends
of nine of the members of the frame, one on each side thereof and preferably in the
following order :-Members 1 and 2 forming the horizontal fork carrying the driving
wheel, 3 and 4 running vertically to support the seat pillar socket 18, 5 and 6 running
to the top of the centre spindle 14, 7 and 8 running to the bottom of the centre
spindle 14, and member 9 running to the axle of the driving wheel, forming an
additional prong or stay on the opposite side of the horizontal fork to that on which
the chain gearing is placed. In order to splay out the additional prong or stay !),
a washer 19 is placed on the cross bar between it and the other members.
The ends of these members are then locked firmly on to the cross bar, by means
of nuts threaded or its ends. The free ends of the members 7 and 8 are fixed to the
lower end of the centre spindle 14 by a transverse bolt and nut 20. The free ends
of the members 5 and 6 are fixed to the top or the centre spindle 14 together with
two other members 10 and 11, by a transverse bolt and nut 21. The free ends of
the members 10 and 11 and 3 and 4 are fixed to the socket 18* together with the
ends of two other members 12 and 13, by a transverse bolt and nut 22.
The free
ends of the members 12, 13 are adapted with those of the members 1, 2 and 9 to
receive the axle 15 of the driving wheel, and be locked thereto by the nuts on the
ends thereof.
Instead of the bolts and nuts 20, 21 and 22 rivets may be used if desired.
The members and 4, 5 and 6, 7 and 8, and 12 and 13 converge at their points
of connection to the centre spindle 14 and seat pillar 18 respectively, and they are
widest apart at their points of connection with the cross bar 16, and axle 15 of the
driving wheel, respectively. The members 1, 2 and 9 also converge slightly at their
points of connection to the cross bar 16, but the members 10 and 11 run parallel to
one another, as close together as possible. The centre spindle 14 and the socket 18
are provided with suitable lugs as illustrated, adapted to project between the
respective members fixed thereto to stiffen the frame.
It will be seen that as all the members of the frame are bolted or rivetted together
and not brazed, the members 5 and 6 are necessary to the stability thereof and ac

page_text: as stays to the respective parts of the frame, and also that the member 9 acts
as a truss to the fork 1 and 2 and so stiffens it against the pull of the driving
chain.
To prepare the ends of the several members to be bolted up, or rivetted, to the
respective parts hereinbefore set forth, they are stamped or pressed out flat, and a
hole of the required size is punched or drilled therein.
The mudguard 23 presents no novel features and may be fixed to the members 3, 4
and 12, 13 as illustrated, or in any other convenient and suitable manner.
The mechanism we prefer to use to adjust the driving chain consists of a tension
rod 24 screwed or otherwise fixed to the lower lug on the centre spindle 14, and
adapted to pass through an eye or arm on the swinging bracket 17 carrying the
bearings 18 for the pedal crank axle, and be capable of rocking the swinging
bracket on the cross bar 16, by means of suitable nuts threaded on the end thereof.
The swinging bracket is locked to the cross bar 16 after adjustment by the set
screw 25. This device forms no part of our invention as any other equivalent or
suitable mechanism may be used. Those other parts of the machine to which no
specific reference has been made, and which are not illustrated in the drawings,
present no novel features and may be of the usual type and construction.
We wish it to be understood that we do not limit ourselves to the use of bar iron
or steel of a crescent section for the members of our improved frame, as bars of any
other section, or even tubes of a flattened section may be used, and also that we do
not limit ourselves to the precise shape, or the exact details of construction of our
improved frame as hereinhefore described and shown, but hold ourselves at liberty
to make such changes and alterations as fairly fall within the spirit and scope of
our invention.
We are aware that prior to the date of our invention the frames of velocipedes
have been constructed out of rim steel. We therefore do not claim the use of such
broadly; but having now particularly described and ascertained the nature of our
said invention and in what manner the same is to be performed, we declare that
what we claim is :-
1st. The improvements in and relating to velocipedes, substantially as hereinbefore
described and shown.
2nd. The combination in the frame of a velocipede, of the fork 1, 2 for carrying
the driving wheel, and the additional prong or stay 9, adapted to truss the said fork
as set forth.
3rd. In the frame of a velocipede, the combination with the members 1, 2; 3, 4;
7, 8; 10, 11, 12, 13; the centre spindle 14; the seat pillar socket 18*; and the
cross bar 16, bolted or rivetted together by transverse bolts or rivets; of the
members 5 and 6 acting as braces to the said frame and preventing movement at
the joints, as set forth.
4th. In a velocipede, forming the frame of double members of bar iron, steel or
its equivalent, fixed together and to the several parts by means of transverse bolts
or rivets, and trussing the frame by means of diagonal or equivalent braces, as and
for the purpose set forth.
5th. In a frame for a velocipede, the combination of the fork 1, 2, with additional
prong or stay 9; the fork 12, 13 carrying the driving wheel; the vertical
members 3, 4; the members 7, 8; the members 10, 11; the centre spindle 14; the
seat pillar socket 18*; the cross har 16; the diagonal braces 5, 6; all combined
arranged and operating as and for the purpose set forth.
Dated this 3rd day of April 1890
ROBT. ED. PHILLIPS, M.I.M.E.,
Consulting Engineer and Patent Agent, 70, Chancery Lane, W.C.,
Agent for the Applicants.