TRICYC OR OTHER SIMILAR VEHICLES
Year: 1882

page_text: PROVISIONAL SPECIFICATION left by the said John Peter Dalby at the
Office of the Commissioners of Patents on the 14th October 1882.
JOHN PETER DALBY of Leeds in the County of York
TRICYCLES OR OTHER SIMILAR VEHICLES
"
"
IMPROVEMENTS IN.
My improvements have reference to steering the vehicle by a hand or moving
lever, the required motion being transmitted through a pinion on the lever working
into a rack in connection with the steering apparatus; the lever and rack by
preference moving as near as possible in one common centre or plane, but at the
same time the rack may be caused to travel for steering purposes in a longitudinal
direction.
Instead of the rack and pinion, a worm and worm wheel, or bevel gearing or a
lever or chain attachment may be employed.
The brake is actuated in a similar manner to the above. In order to increase
the power or effect of the brake I apply a roller to one of the wheel tyres such
roller being mounted on a horizontal shaft carried on the framework of the machine,
at the other end of the shaft and adjacent to the tyre of the other wheel is mounted
a spoon or arm which is brought in contact therewith by the rotary movement
imparted to the roller by the other tyre and is also retained in contact therewith by
the same medium.
Instead of the above when preferred I dispense with the roller and employ two
spoons actuated by means of a friction or other clutch brought into operation by
the rotary movement of the axle.
Either of the above methods can be applied to a brake drum and strap or to a
trailing brake.
My improvements have reference to vehicles on which revolving handles are
used either separately or in combination with the treadle movement and consists
Prins G71

page_text: in transmitting through such handles the required movements to the steering and
brake gear.
I transmit the required movement to the driving axle of the tricycles by a ratchet
or frictional movement operated through a strap, chain or cord from a hand rod or
lever or pedal.
I also provide means for reducing or increasing the length of the hand levers or
rods whilst the tricycle is in motion and the handles or levers are being worked.
When the machine is required to be compressed or folded into less space for
stowage, I so hinge the framework together that the wheels can be moved round to
within it.
By such an arrangement the vehicle can be made, to take up much less space than
folding tricycles of ordinary construction.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said John Peter Dalby in the Great Seal Patent Office on the 14th April
1883.
JOHN PETER DALBY of Leeds in the County of York "IMPROVEMENTS IN
TRICYCLES OR OTHER SIMILAR VEHICLES
"
My Improvements have reference to steering the vehicle by a hand or moving
lever the required motion being transmitted through a pinion on the lever working
into a rack in connection with the steering apparatus; the lever and rack by
preference moving as near as possible in one common centre or plane, but at the
same time the rack may be caused to travel for steering purposes in a longitudinal
direction
Instead of the rack and pinion a worm and worm wheel or bevil gearing or a
lever or chain attachment may be employed.
The brake is actuated in a similar manner to the above In order to increase
the power or effect of the brake I apply a roller to one of the wheel tyres such
roller being mounted on a horizontal shaft carried on the framework of the machine
at the other end of the shaft and adjacent to the tyre of the other wheel is mounted
a spoon or arm which is brought in contact therewith by the rotary movement
imparted to the roller by the other tyre and is also retained in contact there with by
the same medium
Instead of the above when preferred I dispense with the roller and employ two
spoons actuated by means of a friction or other clutch brought into operation by the
rotary movement of the axle.
Either of the above methods can be applied to a brake drum and strap or to a
trailing brake.
My Improvements have reference to vehicles on which revolving handles are
used either separately or in combination with the treadle movement and consists in
transmitting through such handles the required movements to the steering and.
brake gear.
I transmit the required movement to the driving axle of the tricycles by a ratchet
or frictional movement operated through a strap chain or chord from a hand rod or
lever or pedal.
I also provide means for reducing or increasing the length of the hand levers or
rods whilst the tricycle is in motion and the handles or levers are being worked
When the machine is required to be compressed or folded into less space for
stowage I so hinge the framework together that the wheels can be moved round to
within it
By such an arrangement the vehicle can be made to take up much less space than
folding tricycles of ordinary construction.
And in order that my Invention may be the more completely understood
reference is given to the accompanying drawings and to the letters and marks
thereon
DESCRIPTION OF DRAWINGS

page_text: I steer the vehicle by means of the handle d (or lever) and through a vertical rod e
on which is provided a pinion f, the pinion being in gear with tho rack g provided
on the rod attached to the steering lever i. But instead of this arrangement of
rack and pinion a worm and worm wheel or bevil gearing or a lever or chain
attachment may be employed.
The brake is actuated in a similar manner to the above. In order to increase
the power or effect of the brake I employ a roller k mounted on the free end of the
brake shaft. This end of the brake shaft is carried in a swing bearing n hinged
to the cross-piece a of the framework, and thus allows of the roller k being moved
to and from and kept in contact with the tyre of one of the driving wheels; by the.
rod h actuated through a rack and pinion or other arrangement. The opposite end
of the brake shaft 7 which passes through a fixed bearing o carries a spoon or arm m
which is brought in contact with the tyre of the other wheel by the rotary
movement imparted to the brake shaft and the roller by the tyre of the first
mentioned driving wheel.
The rotary movement of the roller may be applied to operate a brake drum and
strap or a trailing brake of ordinary construction
My Improvements have further reference to vehicles on which revolving arms or
handles are used either separately or in combination with the treadle driving
arrangement, and consists in transmitting through such handles the required
movements to the steering or break gear. This arrangement is shown in Fig 3 in
which 1, 1, are the hand wheels mounted on the axle 2 carrying the chain wheel 3.
4, 4 are friction discs the bosses of which pass through the supports 55 in the
top of the framework of the vehicle. At the inner ends of and attached to the
bosses of the friction discs are applied the coiled or scrolled springs 6 6 fastened at
their other ends to the supports 5 5. The steering chains 77 are attached to the
bosses of the friction discs 44 and outside the supports 55. In a slot way in thie
handles of the hand wheels are provided the springs 8.8 which pass through the
rim of the hand wheels and having on their ends the projections or friction
pieces 9. 9. By depressing one of the springs 8 whilst the hand wheels 1, 1, are
revolving the corresponding friction piece 9 is forced against the friction disc 4
causing it to revolve also winding the steering chain on boss of the friction
disc 4 and so actuates the steering lever. When the finger pressure is released from
the spring 8 the coiled or scroll spring 6 brings the friction disc back to its original
position. The handles 1, 1, revolve loose in their bearings in the hand wheels.
The above arrangement may be used for actuating the brake gear.
Figs 4, 5, and 6 shew my Improvements by which the length of the hand levers
or rods of the steering and brake gear may be reduced or increased whilst the
tricycle is in motion and whilst the handles or levers are being worked. d is the
handle or lever to which is attached the vertical rode having notches in the lower
part as shewn in Fig 4 and provided also with a groove oxtending its whole length.
The lower part of the groove is inclined as indicated by the dotted line in Fig 4.
10 is a draw rod which is enlarged wedged shaped at its lower end, the taper of
which corresponds to tlie incline in the bottom of the lower end of the groove in the
vertical rod e. This draw rod 10 fits in the groove in the vertical rod e and is
provided at its upper end with a cross handle. To a segmental projection on the
upper side of the pinion fis attached a flat spring 11 which engages in the notches
in the vertical rod e when the draw rod 10 is in its lowest position. This is shown
in plan in fig 5. By drawing up the rod 10 the spring 11 is pushed back clear of
the notches and the vertical rode may be raised or lowered at pleasure. This is
shewn in plan in Fig 6, and is applicable to fixed or purchase handles.
When the machine is required to be compressed or folded into less space for
stowage, I provide hinges in the framework at t. The bridge 9 carrying the seat
or saddle fits with two spring claws 8 onto the side pieces of the framework a.
When this bridge q is removed or swung back and the pedal shaft loosened, the two
sides carrying the wheels b can be rotated outwards, and bringing the driving
wheels b side by side with the steering wheel c

page_text: Having now described the nature of my said Invention, and shewn by the aid of
drawings how the same may be carried into practice I would have it understood
that I do not limit myself to the precise details and configuration of the parts I
have described and shewn as the saine may be varied or modified without departing
from the nature of my said Invention, what I do. claim is
The general arrangement construction and application of break apparatus and
the means employed for operating the same substantially as herein set forth.
The means employed for imparting the required movements to the steering and
brake apparatus on vehicles with revolving handles and with or without pedal.
movement substantially as herein described.
.
The means employed for adjusting the height of the handles of tricycles
substantially as shewn at Figs 4, 5, and 6 and herein set forth.
The arrangement construction and application of frame a so constructed that it
may be folded up substantially as herein set forth.
In Witness whereof I the said John Peter Dalby have hereunto set my
hand and seal this thirteenth day of April in the year of Our Lord one
thousand eight hundred and eighty three
J. P. DALBY (L.S.)