A New or Improved Construction of Engine or Motor chiefly for use with Motor-driven Road Vehicles.
Year: 1899

page_text: Date of Application, 31st Aug., 1899
Complete Specification Left, 31st May, 1900-Accepted, 2nd Oct., 1900
A New or Improved Construction of Engine or Motor chiefly for use
with Motor-driven Road Vehicles.
We, WILLIAM SIMPSON, FRANCIS GODLEE, WALTER LIGHT BODMAN, and
DANIEL HARRISON SIMPSON, all of Pomona Engine Works, Lund Street, Corn-
brook, Manchester, Engineers, do hereby declare the nature of our said invention
to be as follows:-
This invention consists of a new or improved construction of steam engine
or steam motor for use chiefly with motor driven road vehicles, and the essential
features of which are a series of cylinders grouped around a crank shaft common
to all, a piston for each cylinder and all coupled to the same crank on the said
shaft, a cam wheel actuated (by preference) by a prolongation of the crank pin,
and enabled to slide on such prolongation, and having certain ridges on its
periphery adapted under the rotation of the wheel to open the steam inlet valve
of each cylinder for driving the crank shaft in one direction, and certain other
ridges adapted to open the same inlet valves; when brought into line with such
valves by a slight endwise movement, for driving the crank shaft in the reverse
direction.
The exhaust escapes through holes in the wall of each cylinder which open
into a cavity communication with an exhaust outlet pipe common to all the other
cylinders. For readily connecting and dis-connecting the inlet or steam pipe
we mount the ends in unions which are held in position by a yoke or clamp.
Further features of our invention consists in attaching gear wheels (or
pulleys) to the crank shaft, and to a lay shaft carried by the engine casing by
differential screw threads whereby the wheels may be readily substituted for
wheels of other sizes for use, say in changing the gear according to the condition
of the road being traversed by the motor car, good or bad-or the load to be
overcome.
The casing is by preference made of aluminium and the cylinders of phospher
bronze, cast iron or other suitable wearing metal with bushes or linings of
phospher bronze for the shaft bearings. Parts of the casing containing the
bearings are water-jecketed.
Other features consist in the absence of all packing, the reduction of parts
to a minimum and the connection of the connecting rods to the cranks in a
manner which renders the connection impossible to become disconnected whilst
rotating.
Although more particularly designed for motor car purposes the engine may
be used for marine or stationary purposes where a very light and steady moving
engine is required at small cost.
ليوم
2000
WILLIAM SIMPSON,
FRANCIS GODLEE.
WALTER LIGHT BODMAN,
DANIEL HARRISON SIMPSON,
By John G. Wilson & Co.

page_text: A New or Improved Construction of Engine or Motor chiefly for use
with Motor-driven Road Vehicles.
We, WILLIAM SIMPSON, FRANCIS GODLEE, WALTER LIGHT BODMAN, and
DANIEL HARRISON SIMPSON, all of Pomona Engine Works, Lund Street, Corn-
brook, Manchester, Engineers, 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:-
This invention consists of a new or improved construction of steam engine
or steam motor for use chiefly with motor driven road vehicles, and the essential
features of which are illustrated on the accompanying drawings, in which
Fig. 1 illustrates a longitudinal vertical section, and
Fig. 2 illustrates a transverse vertical section.
According to this invention we employ a series of cylinders (A) grouped
around a crank shaft (B) common to all. Each cylinder has a piston (C), and
all are coupled to a balanced crank (D) on the said shaft. Alongside the crank
is a cam wheel (E) actuated by a prolongation (F) on the crank, and capable
of sliding on such prolongation under the lateral movements of that portion
of the crank shaft on which the cam wheel is mounted.
Upon the cam are ridges (G) adapted under the rotation of the cam wheel
to open the steam inlet valve (H) of each cylinder for driving the crank shaft
in one direction, and a certain other ridge (or ridges) (I) adapted to open the
same valves when brought into line with such valves by a slight endwise move-
ment of the cam wheel for driving the crank shaft in the reverse direction.
The exhaust escapes through holes (J) in the wall of each cylinder, which
open into a cavity (K) communicating with an exhaust outlet pipe (L) common
to all the cylinders. For readily connecting and disconnecting the inlet steam
pipe (M) we mount the ends in unions (N) which are held in position by a yoke,
or clamp (0).
The engine casing is, by preference made of aluminium, and the cylinders
of phosphor bronze, cast iron or other suitable wearing metal, with bushes or
linings of phosphor bronze being used for the shaft bearings. The lubricant
supplied to the cylinders may flow after use into the chamber (P) from whence
it may be periodically withdrawn; or pumped back through pipe (Q) into
the chamber (R) for reuse. The pipe (Q) serves for supplying fresh oil.
The gear wheels (S) are so disposed that they can be readily removed and
wheels of larger or smaller size be substituted for use say in changing the gear
according to the condition of the road being traversed by the motor car, good
or bad, or the load to be overcome.
For excluding dust, etc., the gears are enclosed by casings (T). Throughout
the engine there is an entire absence of packing (except the piston rings), and
the number of parts is reduced to a minimum.
The hollow spaces (T) may serve for water-jacketting the bearings of the
shaft (B).
In lieu of the cam wheel (E) being in one piece with, or directly connected
to the crank shaft, it may be separate, and be moved endwise by a rod or spindle
within the the shaft (which is made hollow, and in one piece with the crank)
with a pin or stud projecting through a slot in the shaft and engaging the cam,
as shewn by dotted lines in Fig. 2, the cam also if desired moving endwise on
a sliding key.
The connection of the connecting rods (V) to the crank is effected by rings (W)

page_text: which encircle the segmental portions (V), as shewn, and thereby render it
impossible for the rods to become disconnected whilst rotating.
Although more particularly designed for motor car purposes the engine may
be used for marine or stationary purposes where a very light and steady moving
engine is required at small cost.
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:
1. In a motor or engine, a series of cylinders grouped radially around a crank
shaft, a piston and connecting rod for each cylinder with the connecting rods
all coupled to the said crank shaft, a steam inlet valve for each cylinder, a
cam wheel having ridges for successively operating such valves, and means for
imparting an endwise movement to such cam wheel, substantially as and for
the purposes herein set forth and illustrated on the accompanying drawings.
2. In a motor or engine, the arrangement and combination of parts, substan-
tially as and for the purposes herein set forth, and illustrated on the accom-
panying drawings.
Dated this 30th day of May 1900.