Year: 1896

page_text: I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of The Agency for Foreign
Patent Solicitors, 322, High Holborn, in the County of London, 6, Lord Street
Liverpool, and 6, Bank Street, Manchester, both in the County of Lancaster, and
Lower Temple Street, Birmingham, in the County of Warwick, Civil Engineer, do
hereby declare the nature of this invention to be as follows:-
This application for Letters Patent has for its object a special arrangement relative
to the number and the position of the cylinders especially in motors designed for
autocars, but the invention can also be applied to any other inotor. This arrangement.
is designed to equalise as perfectly as possible the perturbations caused in the case
of each cylinder by the moving parts by means of contrary or inverse perturbation
from the other cylinders. The motor is composed of four cylinders placed two by
two in the same centre lines, that is to say the second cylinder in the centre line of
the first and the fourth cylinder in the centre line of the third. The first and third
cylinders are placed side by side, and the second and fourth are also placed side by
side, parallel with each other.
Between the two couples of cylinders thus formed and placed opposite each other
at a convenient distance is placed the main shaft which is arranged in such manner
as to form a double crank, the two cranks are at opposite angles one to the other and
each of them is counterweighted. The pistons of the first and second cylinders act
simultaneously by means of connecting rods upon one of the cranks. The pistons of
the third and fourth cylinders act in the same manner upon the other crank. The
result is that the pistons of the first and second cylinders work in correspondence with
each other. One of them is found at the end of its course when the other is at its
commencement and vice versa, it is the saine with the pistons of the third and fourth
cylinders. In consequence of this arrangement the perturbations caused each in its
special direction by the action of each piston counteract each other reciprocally and
thus produce as a resultant only a central perturbation without effect upon the whole
of the machine.

page_text: .
Improved Balanced Motor Engine.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of The Agency for Foreign
Patent Solicitors, 322 High Holborn, in the County of London, 6, Lord Street,
Liverpool, and 6, Bank Street, Manchester, both in the County of Lancaster, and
Lower Temple Street, Birmingham, in the County of Warwick, Civil Engineer, 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 application for Letters Patent has for its object a special arrangement relative
to the arrangement and the position of the cylinders especially in motors designed
for autocars, but the invention can also be applied to any other motor. This arrange-
ment is designed to equalise as perfectly as possible the perturbations caused in the
case of each cylinder by the moving parts by means of contrary or inverse perturbation
from the other cylinders.
In the accompanying drawings,
Figure 1 shews an elevation and
Figure 2 a plan view of a motor constructed according to the invention.
The motor is composed of four cylinders A, B, C, D, placed two by two in the same
centre lines, that is to say the second cylinder B in the centre line of the first
cylinder A and the fourth cylinder D in the centre line of the third cylinder C. The
first and third cylinders A and C are placed side by side, and the second and fourth
cylinders B and D are also placed side by side, parallel with each other.
Between the two couples of cylinders thus formed and placed opposite each other
at a convenient distance is placed the main shaft E which is arranged in such manner
as to form a double crank F, G. The two cranks F and G are at opposite angles one
to the other and each of them is counterweighted by weights H. The pistons of the
first and second cylinders A and B act simultaneously by means of connecting
rods I and J upon one of the cranks F. The pistons of the third and fourth
cylinders C and D act in the same manner upon the other crank G through connecting
rods K, L. The result is that the pistons of the first and second cylinders A, B work
in correspondence with each other. One of them is found at the end of its stroke
when the other is at its commencement and vice versa, it is the same with the pistons
of the third and fourth cylinders C and D. In consequence of this arrangement the
perturbations caused each in its special direction by the action of each piston
counteract each other reciprocally and thus produce as a resultant only a central
perturbation without effect upon the whole of the machine.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed as communicated to
me by my foreign correspondent, I declare that what I claim is :-
1. In cylinder motors, the use of four cylinders placed two and two at opposite
sides of the crank shaft, the pistons of the opposed cylinders acting on the same
crank.
2. In the motors characterised in Claim 1 the arrangement of the cranks opposed
one to another each of them moreover being balanced by weights suitably adjusted.
3. In cylinder motors such as set forth in Claims 1 and 2 the use of four cylinders
and the fixing of the same in such a manner that they reciprocally neutralise the
irregularities caused by each of them separately and thus secure the perfect equilibrium

page_text: of the motor all substantially as described and with reference to the accompanying
drawings.
Dated this 27th day of T1 1907
W. P. THOMPSON & CO.,
Of London, Liverpool, Manchester, and Birmingham,
Patent Agents for the Applicant.
W. P. THOMPSON & CO.,
Of London, Liverpool, Manchester, and Birmingham,
Patent Agents for the Applicant.