Improvements in Double Acting Gas and Petroleum Motor Engines
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in Double Acting Gas and Petroleum Motor Engines
I, BRIDGMAN BUSSELL, of 42, Berwick Street, Oxford Street, London, W,
Engineer, do hereby declare the nature of this invention to be as follows;-
This invention relates to the construction of double acting gas & oil vapour
motors, which have both ends of the cylinder closed, and wherein a combustible
charge is introduced and fired alternately at each end of the one 'cylinder; thus
acting on both sides of the piston, and this invention consists of water-jacketing
both the piston and the piston rod, or rods, to prevent overheating & expansion.
The piston can be constructed in various ways for carrying out my invention to
enable it to contain and hold water, and either one or more piston rods may be
used, which are made hollow, having a water passage or passages communicating
with the interior of the piston, through which the water passes to and from the
piston, so that both the piston & piston rod, or 1ods are cooled by a cuculation of
water, which may be either an independent forced circulation by means of a pump,
or the piston rod or rods can be made to act as part of the pump, or a natural
circulation of water may be obtained by an attachment or attachments on the
piston 1od or 1ods and connected with the water jacket of the cylinder. Two
separate waterways also may be formed in the piston rod to ensure a circulation
of water into, through, and out of the piston
With the arrangement of water ways in the piston & piston rod or rods sub-
stantially as described, a charge can be fired at both ends of the one closed
cylinder without overheating the moving piston & rod.
1000
Improvements in Double Acting Gas and Petroleum Motor Engines.
I, BRIDGMAN RUSSELL, of 42, Berwick Street, Oxford Street, London, W,
Engineer, do hereby declare the nature of this invention and in what manner the
same 18 to be performed, to be particularly described and ascertained in and by
the following statement :-
This invention relates to the construction of double acting gas and oil vapour
motors enabling both ends of the cylinder to be closed as the cylinder of a steam
engine is constructed and enabling a combustible charge to be introduced and
fired alternately at each end of the same cylinder thus acting on both sides of the
piston; and this invention consists of water-lining both the piston and the piston
[Price 8d1

page_text: rod, or rods, to prevent overheating and expansion. The piston can be con-
structed in various ways either in one piece cored out or in two or more parts
fitted together and bolted or screwed to make the joints and enable it to contain
and hold water and either one or more piston rods may be used which are made
hollow or having a waterway or ways communicating with the interior of the
piston, and through which water can pass to and from the piston so that both the
piston and piston rod or rods are cooled by a circulation of water which can be
either a forced circulation by means of an independent pump or the piston rod
or rods can be fitted to act as the plunger of the pump on a natural cuculation of
water may be obtained by an attachment or attachments on the piston rod or
rods and connected with the water jacket of the oylinder Two separate water-
ways also can be formed in the piston rod to act as flow & return pipes and ensure
a circulation of water into, through and out of the piston With the arrangements
of waterways in the piston & piston rod or rods substantially as described, a
charge can be fired at both ends of the one closed cylinder, which cylinder is itself
waterjacketed or winged to prevent overheating as is customary, and will prevent
the overheating and expansion of the moving piston piston rod or rods
Fig 1 shows a section of engine, in which A is the cylinder, B the water jacket
casing C the cylinder covers, D the hollow piston, E the hollow piston rods
through which the water passes to and from the piston D, from the water space W
between the outside of the cylinder A and the inside of the water jacket cover B;
by means of the 2 hollow plungers P which communicate by a waterway formed
in the cross head X.
Fig 2 shews a similar cylinder A with a hollow piston D and a hollow piston
rod E also an inner tube T which can be used to clear away an or steam forming
inside the piston D, or for cu culation of the water In this case the part of the
piston rod extending beyond the crosshead can act as a pump or a communication
to pass the water into and out of the piston D, or either a single or double attach-
ment connected to the crosshead, can be made similar to Fig. 1 ; & connected
either to the water jacket, or to an independent or separate water connection or
pump in order to keep the piston D & piston rod E cool
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is:
1 The construction of a double acting single cylinder gas or oil engine having
the piston and piston rod waterlined, or cooled by a circulation of water, sub-
stantially as described.
2 The water lining of the piston & piston rod of a gas or oil engine substantially
as described
Dated this Twenty-sixth day of September 189a