Year: 1886

page_text: I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co., Patent Agents,
Southampton Buildings, in the County of Middlesex, do hereby declare the nature
of my invention to be as follows:-
This invention relates to motor apparatus of the class described in the speci-
fication filed with my application for provisional protection dated May 27th,
A.D. 1885, No. 6473.
The improvements relate chiefly to the distributing valve and to the method of
heating the boiler.
In the apparatus described in the said provisional specification, the engine had a
lift motion for the valve, whereas, according to the present improved construction,
it is provided with a slide valve. Furthermore the heating of the boiler is not
necessarily effected by gas produced in the boiler from a liquid hydrocarbon, but
either through the medium of lighting gas introduced from the outside, or of the
flame of a hydrocarbon or other burner arranged around the boiler; in both cases
the steam passing from the boiler is mingled with the flame.
According to the present invention, the boiler is secured by screws upon the
engine frame as heretofore and contains a cylinder. The said boiler is provided
with a safety valve, on the opening of which the escaping steam causes a whistle
to sound.
The steam generated in the boiler enters a space above the cylinder and thence
flows into a chamber in the piston through lateral openings and a central passage
formed in a prolongation of the piston.
The connecting rod between the piston and the crank has fixed to it a tappet
which oscillates with the said connecting rod.
This tappet effects the displacement of the distributing slide which is movable
in the hollow piston and fitted therein so as to be steam-tight, the said tappet
engaging with an eye in the slide. As soon as the engine passes the upper dead
point and the connecting-rod moves downward, the distributing slide descends.
Price 8d.1

page_text: The steam then flows from the chamber in the piston through suitable channels to
the top side of the piston and forces it downwards. The admission continues until
the piston has descended so far that the lateral openings in the prolongation are
just drawn into the cylindrical guide for the piston, whereby the admission of
steam is cut off and expansion takes place. This expansion continues until the
engine has passed the lower dead point. In the succeeding upward motion of
the connecting rod, the slide is lifted so far that the expanded steam above
the piston can pass through the channels and thence through longitudinal
grooves in the slide valve into the space in which the crank disc is located,
in order to escape thence through openings around the boiler and to mix
there with the heating flame. This flame is produced either from a volatile
liquid which is introduced into a chamber below the engine frame and from
which wicks lead to openings at which they are lighted, or from gas which
enters the said chamber through a suitable conduit, which gas is lighted at the
said openings and forms in conjunction with the boiler-steam a gas-fire for heating
the boiler.
The fresh air necessary for the combustion passes to the heating flame through
suitable apertures near the flame.
1000

page_text: ашрготещению шапи іранцу изюкаш визшее ини
Domestic and other Purposes.
I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co., Patent Agents,
Southampton Buildings, in the County of Middlesex, 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 relates to motor apparatus of the class described in the specification
of Letters Patent dated May 27th A.D. 1885 No. 6473.
The improvements relate chiefly to the distributing valve and to the method of
heating the boiler.
In the apparatus described in the said specification the engine had a lift motion
for the valve, whereas according to the present improved construction it is provided
with a slide-valve. Furthermore the heating of the boiler is not necessarily effected
by gas produced in the boiler from a liquid hydrocarbon, but either through the
medium of lighting gas introduced from the outside, or of the flame of a bydro-
carbon or other burner arranged around the boiler; in both cases the steam passing
from the boiler is mingled with the flame.
In the accompanying drawing,
Figures 1 and 2 are sectional elevations of the improved motor on planes
perpendicular to each other.
Figures 3 and 4 show the distributing valve and valve gear in the two positions
answering to the maximum deviations of the connecting-rod.
Figure 5 is a section on the line x x Figure 3.
According to the present invention the boiler B is screwed to the engine frame A
as heretofore and contains the cylinder C. The said boiler B is provided with a
safety-valve b, on the opening of which the escaping steam causes a whistle b³,
sound. X X indicates the normal level of the water in the boiler.
to
The steam generated in the boiler B enters the space d above the cylinder C, and
thence flows into a chamber e in the piston D through lateral openings d' and a
central passage & formed in a prolongation of the piston D.
When the engine is running in the direction indicated by the arrow, the connecting-
rodh between the piston and the crank deviates to the left while the piston D is
moving downward and to the right while the said piston is moving upward.
The connecting-rod h has fixed to it a tappet h¹, which oscillates with the said
connecting rod. This tappet h¹ effects the displacement of the distributing slide E
which is movable in the hollow piston D and fitted therein so as to be steam-tight,
the said tappet engaging with an eye e' in the slide.
As soon as the engine passes the upper dead point and the connecting rod h
moves downward, the distributing' slide E descends (see Figures 1 and 4). The
steam then flows from the chamber e in the piston D through the knee channels d'
to the top side of the piston and forces it downwards. The admission continues
until the piston D has descended so far that the lateral openings in the pro-
longation are just drawn into the cylindrical guide c for the said prolongation,

page_text: whereby the admission of steam is cut off and expansion takes place. This
expansion continues until the engine has passed the lower dead point. In the
succeeding upward and right hand motion of the connecting rod h (see Figure 3)
the slide Ĕ is lifted so far that the expansion steam above the piston D can pass
through the knee channels d' and thence through longitudinal grooves e³ in the
slide valve E into the space in which the crank disc is located, in order to escape
thence through openings a around the boiler B and to mix with the heating flame
issuing from the holes a¹.
This flame is produced either from a volatile liquid which is introduced into the
chamber a below the engine frame and from which burner wicks lead to the
openings a at which they are lighted; or from gas which enters the said
chamber a through a coupling a³ and suitable conduit, which gas is lighted
at the said openings a¹ and forms in conjunction with the boiler steam issuing from
the holes a a gas fire for heating the boiler.
The fresh air necessary for the combustion passes to the heating flame through
the apertures f formed in the conical case F which surrounds the flame.
'Having now particularly described and ascertained the nature of the 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,
'In a steam engine or motor, the combination with a piston cylinder open at one
end and having its head located in the steam space of the steam boiler, of a piston
having a tubular extension projecting into the steam space through the cylinder-
head, a slide movable in an axial bore of the piston, a tappet fixed to the connecting
rod of the piston and adapted to operate the slide, admission openings formed
laterally in the tubular, extension of the piston, knee passages leading from the
front side of the piston to the inner hollow space of the same, and longitudinal
grooves in the slide, corresponding to the said knee passages and not extending to
the front end of the slide, substantially as and for the purpose, set forth.
T
1.
1
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1000