Improvements in Three Cylinder Engines and the Application thereof to Velocipedes, Motor-bicycles and Tricycles, and Self- propelled Road Vehicles.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in Three Cylinder Engines and the Application
thereof to Velocipedes, Motor-bicycles and Tricycles, and Self-
propelled Road Vehicles.
We, ALBERT JORDAN, Cycle Manufacturer, and JOHN GEORGE HILLYARD BROWNE,
Cycle Manufacturer, both of 194, Goswell Road, St. Luke's, in the County of
London, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in three cylinder engines having the
three pistous connected, and acting on a single crank, being propelled in turn by
steam, gas, or fluid under pressure, or by explosions admitted into the cylinders;
and the application thereof to velocipedes and self-propelled vehicles, several points
have consequently to be dealt with, these principally consisting of:
(1st) As to the frame and extensions or arms thereof to support the three
cylinders which frame and extensions are made of steel or other suitable metal in
such forin that each cylinder shall be supported in the centre of each extension,
the said extensions shall be grooved or dovetailed to allow each cylinder to be
removed by sliding out of the extension for cleaning or other purposes.
(2nd) The crank shaft of engine shall preferably be supported on ball bearings,
fitted with lateral adjustments, though we do not bind ourselves in this respect.
(3rd) The frame of the engine may be affixed to the back chain stays of a bicycle
or tricycle or other road vehicle, about midway between the sprocket and back
axle by eye-bolts or other well known mechanical fixings.
(4th) The end of the engine shaft is fitted with a pinion geared internally to a
bicycle sprocket chain wheel (which may or may not be fitted with cranks and
pedals) through which power shall be transmitted by means of a chain or other
well known mechanical medium to the driving wheel or wheels.
Dated this with 1.
1002
COMPLETE SPECIFICATION.
Improvements in Three Cylinder Engines and the Application
thereof to Velocipedes, Motor-bicycles and Tricycles, and Self-
propelled Road Vehicles.
We, ALBERT JORDAN, Cycle Manufacturer, and JOHN GEORGE HILLYARD BROWNE,
Cycle Manufacturer, both of 194, Goswell Road, St. Luke's, in the County of
London, do hereby declare the nature of our said invention, and in what manner
[Price 8d.]

page_text: the same is to be performed, to be particularly described and ascertained in and
by the following statement :-
This invention relates to improvements in single-acting three-cylinder engines,
having the three pistons connected with and acting upon a single crank; such
engines being actuated by steam, gas, or fluid under pressure, or by explosions in
the cylinders; and in the application thereof to velocipedes and self-propelled
vehicles.
And in order that our said invention may be particularly described and ascertained,
reference is hereby made to the accompanying drawings, in which similar figures of
reference indicate corresponding parts.
Fig. 1 is a sectional elevation showing the method of fitting our invention to a
velocipede.
Fig. 2 is a back view of the plate to which the cylinders are attached.
Fig. 3 is a transverse view of a cylinder, showing the method of dovetailing the
cylinder to the frame plate.
4 is the frame plate which is firmly attached to the frame of the cycle or other
road vehicle. The crank axle 5 is fitted with a toothed pinion 6, which gears into
the internal teeth of the sprocket wheel 7, as shown, whereby the latter is driven.
The axle of the sprocket wheel may be fitted with pedals if required.
The
axle of the sproket wheel is fitted with ball bearings, as shown at 7 and we
prefer to fit the crank axle 5 in a similar manner. 4, 4, 4, are the extensions to
the frame plate for carrying the cylinders 8. The extensions 4 and the blocks
on the cylinders 8 are (preferably) dovetailed together as shown in Fig. 3, and
secured longitudinally by screws as shown in Figs. 2 and 3. On withdrawing the
screws the cylinders may be readily withdrawn endwise, for cleaning or other
purposes.
The engine is fitted with the usual connections for generating the motive power,
the pipes and other connections being formed to suit the nature of the expansive
force to be employed; valve boxes, as shown at 9 in Fig. 3 being employed when
steam is used. For the purpose of reducing weight our engine is principally
formed of steel, 10, 10, 10, are the pistons; 11, 11, 11, the connecting rods, and 12
is the crank pin.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1. In velocipedes, motor bicycles and tricycles, and self propelled road vehicles, the
improved arrangement of a three cylinder engine, the cylinders of which are
detachably supported by a plate 4 suitably attached to the frame of the vehicle,
the plate 4 having extensions 4, with or without dovetail projections or analogous
appliances, whereby, with the addition of bolts or screws, the cylinders are secured
in position, substantially as and for the purposes herein before described and
illustrated by the drawings.
2. In an engine as aforesaid the application and use of ball bearings to the crank
axle, substantially as described.
3. In an engine as aforesaid, the combination of a toothed pinion 6 fast on the
crank shaft 5, gearing into an inwardly toothed sprocket wheel 7, substantially as
and for the purposes described and illustrated by drawings.
T
100 . T
1000
GEORGE DOWNING & SONS,
8, Quality Court, London, W.C., Agents.