Improvements in or connected with Steam or other Heat Engines, especially applicable to such Engines when applied to Motor Carriages.
Year: 1897

page_text: Date of Application, 22nd Apr., 1897
Complete Specification Left, 24th Jan., 1898-Accepted, 16th Apr., 1898
PROVISIONAL SPECIFICATION.
Improvements in or connected with Steam or other Heat Engines,
especially applicable to such Engines when applied to Motor
Carriages.
We, ROBERT RINTOUL SYMON, of 20, Abchurch Lane, in the City of London,
Gentleman, and HENRY ALONZO HOUSE, Junior, of East Cowes, in the Isle of Wight,
Engineer, do hereby declare the nature of this invention to be as follows:-
One part of this invention relates to engines certain of the working parts of
which, such as the cranks, connecting rods, eccentrics, link motions, and so forth,
work in a closed oil case, and has for its object means for preventing the oil in
such oil case from being splashed on to the hot cylinder cover whereby objectionable
odour is produced, and also for preventing the entrance of water from the steam
cylinder into the oil casing whereby saponification of the oil is sometimes produced.
For these purposes we make the oil case quite independent of the working cylinder,
separating the two from one another by a definite space, the piston rod and valve
rod passing through stuffing boxes in the adjacent ends or covers of both. By
these means the end of the oil case adjacent to the working cylinder is kept com-
paratively cool because the steam or other hot working Huid does not come in
contact with it; and consequently any oil that may be splashed on to it is not
heated and therefore does not emit an objectionable odour. Furthermore as there
are in this arrangement two stuffing boxes interposed between the working cylinder
and the oil case, both of which stuffing boxes are open to the atmosphere, there is
no chance of water passing from the working cylinder into the oil case as often
happens when the end of the oil case forms the cylinder cover and the piston rod
passes through the same without a stuffing box.
Another part of the invention consists in placing the valve chest in a low posi-
tion with regard to the cylinder so as to allow water to drain from the latter into
the former, from whence it is taken off into an exhaust box, and thence passes into
the exhaust pipe, which is preferably taken from the bottom of the exhaust box.
By this means opening of the drain cocks at starting the engine may be entirely
avoided, the water being driven out into the atmosphere, or into the condenser,
as the case may be.
Another part of the invention relates to the working of the slide valve when, as
in the case last above referred to for example, the said valve is placed low down
with reference to the centre line of the working cylinder, so as to be in a different
plane as compared with the said centre line and crank shaft.
In such case we
use a sliding actuating spindle which is arranged in or nearly in the same plane as
the centre line of the cylinder and crank shaft, and is operated by an eccentric in
the usual way. This actuating spindle has on it an arm or arms projecting later-
ally therefrom which is or are connected with the spindle of the slide valve to be
operated. When an oil case is used containing the working parts of the engine as
above mentioned the aforesaid actuating spindle may be arranged to pass through

page_text: down with reference to the centre line of the working cylinders, so as to be in a
different plane as compared with the said centre line and crank shaft G.
In such case we use sliding actuating spindles H, H¹ which are arranged in, or
nearly in the same plane as the centre line of the cylinders and crank shaft, and
are operated by eccentrics I, I' in the oil case. These actuating spindles have on
them arms JJ projecting laterally therefrom which are connected with the
spindles K K of the slide valves LL' to be operated. When an oil case is used
containing the working parts of the engine as above mentioned the aforesaid
actuating spindles are arranged to pass through stuffing boxes or guides MM'
in the end A¹ of the oil case A. The inner ends of the actuating spindles H, H¹
are connected, in the oil case, with the eccentric rods, or with the link motion, as
the case may be, the aforesaid arms J J¹ on the said actuating spindles being con-
nected with the slide valve spindles K K' outside the said oil case A.
In order to prevent the access of dust to the piston and valve rods where they
pass through the open space C we cover them with sheet metal covers N, N' passed
over the stuffing boxes and secured thereon by means of bolts and nuts passing
through flanges N2 as shown in connection with the covers N, or by means of an
endless coiled spring N³ taking into a circumferential groove N of the said covers
as shown in connection with the covers N¹.
In the above description and relative drawings the invention is described and
shown as applied to a compound engine; but it will be obvious that similar
arrangements can be applied to a single engine, to an ordinary double cylindered
engine, or to an engine with any other number of cylinders.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is:
First. In steam or other heat engines in which certain of the working parts work.
in a closed oil case, constructing the oil case and working cylinder with a space
between them open to the atmosphere, substantially as described and for the
purposes specified.
Second. Constructing the cylinder and valve chest of a steam engine in such
manner that the valve chest stands lower than the cylinder so that water can drain
from the cylinder into the valve chest, thence into an exhaust box and from there
to the exhaust pipe, substantially as described, and for the purpose specified.
Third. In steam or other heat engines in which certain of the working parts
work in a closed oilcase, and in which the slide valve is placed in a different plane
as compared with that of the centre line of the working cylinder and crank shaft,
the use of a sliding actuating spindle arranged in, or nearly in the same plane
as that of the centre line of the cylinder and crank shaft such actuating spindle
being operated by an eccentric, or its equivalent, within the oil case, and passing.
out through a stuffing box, or a guide, in the end of the oil case where it is con-
nected outside the oil case to the spindle of the slide valve by means of an arm
or arms projecting laterally therefrom, substantially as described.
Doted this 24th day of January 1898.
■
Dated this 24th day of January 1898.
R. R. SYMON.
H. A. HOUSE, JUNIOR.
Per W. H. Beck,
115, Cannon Street, London, E.C., Agent.