Year: 1899

page_text: This invention has for its object a motor, which takes up little room, is inex-
pensive, light and handy and may be employed for driving all kinds of carriages,
steam boats and commercial establishments with both small and large requirements
of power.
It consists of a rotary steam engine with pistons in combination with a tubular
steam boiler and a feed heater. The direction of movement of the machine shaft
changes rapidly on a reversal of the steam inlet tap.
The invention is shown in the accompanying drawings,
Figure 1 being a front elevation partly in section on the line a-b of Figure 2,
whilst
Figure 2 shows the invention in plan view partly in section on the line e-d
fg of Figure 1.
Figure 3 is a section of a part of the steam boiler of natural size;
Figure 4 shows the steam engine seen from the side;
Figure 5 from the end, and
Figure 6 from above on an enlarged scale;
Figure 7 is a section on the line h-i of Figure 6;
Figure 8 is a cross section of the valve case on the line m-n Figure 4 scen
from the left;
Figure 9 shows a section of the same valve case on the line o-p of Figure 4.
and Figure 7 seen from above;
Figure 10 is a section of the driving wheel along the line -s of Figure 7
not considered as a cross section and seen from the left;
Figure 11 shows another position of the driving wheel;
Figure 12 shows the cylindrical piece 38, Figure 7 not considered as a cross
section seen from the left.
On the pedestal or base 1, Figures. 4 and 7, a support frame 2 is attached by
means of screws 3 and a cylinder 4 by means of the screw 5. On the end of
this cylinder, in the same piece, cock plugs 6 and 7 are arranged eccentrically
as regards the central line of the cylinder. These cock plugs communicate with one
anotlier by means of passages 80 and 81 which at their other ends communicate
by means of passages 9 and 10, Figures S and 9 with passages 12 and 13 in the
upper cock plug 11. These passages 12 and 13 run obliquely and may either com-
municate with the passages 14 and 15 or be shut off from them according as
the handle 16 of the cock plug is turned laterally or as shown in the dotted posi-
tion 17 in Figure 4 upwards.
The steam enters the engine through the passage 15 and flows through the
passage 14 again out of the same. A pipe 18. Figure 9, leads from the passage 15
through the middle of the passage 14 and to the outside.. In the rear wall
of the tube an opening 19 is arranged in such a way that when the safety valve 20,

page_text: Figures 4, 8 and 9, has been pressed backwards beyond the opening, the feed
passage 15 communicates with the escape passage 14. The safety valve is main-
tained pressed on by means of lever 21, Figure 4, which is pivotally mounted in
standards 22 and. influenced by a spring 23 which is adjustably stretched or
strained through a slot 24 upwards and downwards on the standards so that the
safety valve 20 can receive a varying load according to requirements. This
latter remains standing open, when the hook 25 is hooked on the rod 21. The
cock case 26 is kept screwed firm on the cock 6 and is provided with a lubri-
cator 27, Figure 8, which provides the feed passage 15 with oil, said oil being
taken up by the steam and accompanying the latter through the engine so that
the said engine is lubricated. A spindle 28 mounted in the frame 2 is attached
to the driving wheel 29 on which a side piece 30 is firmly screwed, which by
means of lead packing 31, Figure 7, or other suitable packing is washered on
the periphery against the driving wheel. The connecting rods 32, 33, 34,
Figure 11, may drop with their outer ends in grooves in the casing of the driving
wheel and with their inner ends in the pistons 35, 36, 37, which latter can slide
along cylindrical recesses provided in the cylindrical piece 38 which form the
actual steam cylinders. This cylindrical piece is easily revoluble on the cock
plug and provided with three fixed pins 39, Figures 7 and 11, which are
revoluble on the crank pieces 40 and which in turn are again revoluble on the
pins 41 fixed on the driving wheel 29. Owing to the driving wheel 29 and
the cylindrical piece 38 being mounted eccentrically to one another and connected
with one another by means of crank pieces 40, the pistons 35, 36, 37, must travel
one after the other against and away from the centre of the cylindrical piece when.
the wheel and the cylindrical piece-rotate and-vice-versa when the pistons are
driven by the steam successively away from the said centre and thus the wheel
and the cylindrical piece are caused to rotate. The pistons do not rotate forwards
and backwards as regards the axis 28 of the driving wheel but they rotate-on-
or around the central line of the same so that all parts of the driving wheel 29
rotate whereby the machine receives an even and noiseless travel. In order to
adjust the cock plugs 7 in the cylindrical piece in such a way that the latter
can easily rotate on the former without allowing steam to escape, the two screws 42
are turned so that the cock casing 26 and with it the cock plugs 7 are conveyed
to this or that side after which the screw 5 is tightened up so that the plugs
can no longer be moved. The passage 8 has in its wall openings 46, 47, and
the passage 81 openings 44, 45, which are arranged in the plugs.
Figure 12 shows the piston piece 38 of Figure 7 as seen from the left, whilst
pistons, cranks and plugs are removed. When steam under pressure is admitted
to the passage 15 it flows into the passage 10, Figures 9 and 8. if the plug 11,
Figure 9, stands as shown in the drawing, and then further through the passage 81,
Figure 8, into the cylinder 48. Figure 10, and drives piston 35, Figure 10, from
the end of the cylinder, so that the piston thereon assumes the position 36 of
Figure 11 and then the turning position 36 of Figure 10 so that the driving wheel
is turned to the left. The steam is then already shut off from the said pistons,
and acts on another such piston, in fact the one which next follows in the rota-
tion. When the pistons come into the furthest position from the plugs they
are again pressed against the plugs by the connecting rods on the further roia-
tion of the driving wheel to the left. The exhaust steam from the cylinders
escapes through the passage 8, Figures 11 and S. and further passes through
passages 9, 12 and 14. When the plugs are rotated in diametrically opposite
directions the fresh steam flows from the supply passage 15 through the pas-
sages 13. 9 and S, Figures 9, 8 and 11. into the cylinder and moves the driving
wheel 29 in the opposite direction. When the cock plugs 11 are so turned that
the handle 16 can extend outwards, the steam is prevented by the said plugs
from proceeding further and has for its consequence that the pistons are not
operated on by the steam and the machine remains stationary. The oil from the
lubricator follows the current of steam to the pistons and lubricates all the work-

page_text: ing parts in the machinery with the exception of the axle 28 which receives
its lubrication from other lubricators but this axle may also be lubricated from
the same lubricator 27 precisely like the other movable parts of the machine.
By means of the shoulder 31 the oil is retained in the driving wheel. A cog..
wheel 50 engages in a larger one 51, Figures 1 and 2, which is fixed on the
shaft 52 which drives the shaft 53 by means of cogwheel gearing. A wheel 55
is connected with the shaft 53 by means of a clutch sleeve 54, Figure 2, and.
when the sleeve is drawn back the wheel travels loosely on the shaft which then.
may be turned by means of a crank 56 fixed on one end of the shaft. At the
other end of the shaft a crank disc 57 is fixed which is provided with a pin
movable in a groove, said pin driving an ordinary pressure pump 58, the suction
tube 59 and pressure tube 60 of which are in communication with a feed heater
placed in the pedestal 62. By means of a valve 63, which is raised by a lever 64,.
air or steam is allowed to escape which has possibly accumulated under the suc-
tion valve 65. The water from the pump is forced into the space or intermediate
chamber 43 between the partitions 66 and 67 which are connected by screws GS
and a ring 49 watertightly with one another at some distance apart and also
are fitted tightly in the cylinder 69. This cylinder is covered at the top with a
covering 70 and below is attached to a bottom plate 71 which also serves simul-
taneously as cover or lid of a water reservoir 72. On this latter the cover 71:
is placed and provided with a valve 73 but said cover is not fixed firmly but
may be removed. On the bottom 66 outer tubes 74 are fixed which are also fixed
at the top to another bottom plate 75. Inner tubes 76 are fixed at the lower
end on the bottom plates 67 and at the upper end on a bottom plate 77. Between
the plates which are screwed together by means of screws 78 a ring 79 is placed
on the outer edges so that between the partitions an intermediate chamber or
space 80 is formed. Between these outer and inner tubes the water rises in a
layer of the thickness of half a millimetre into the intermediate chamber 80
from whence it reaches by means of a pipe 117 the steam boiler 82 and here
comes between the partitions 83 and 84 which are held some distance apart by
means of threads or in other suitable manner on the outer casing 85. On the
upper end of the casing, partitions 86 and 87 are also fixed apart at some distance
from one another. Between the outer partitions 83 and 86 inner tubes 88 extend
which are steam-tightly fixed in said partitions. The outer tubes 89 are also
fixed steam tight in the inner partitions S4 and 87. The distance between the
inner and the outer tubes 89 amounts only to half a millimetre and between
these tubes the water and eventually the resulting steam passes upwards into.
the intermediate chamber 90 between the floors S6 and 87. The steam flows
therefore afterwards in the steam chamber 92 of the boiler round the outer
tubes 89 through numerous small openings 91 in the partition 87. F'rom
here the steam passes through the steam pipe 93 which is the feed pipe of
the steam engine to the passage 15, Figure 4, where the pipe is firmly screwed on..
The steam boiler is arranged above the fire place 94 and has a discharge pipe 95:
fitted with a tap and leading to the water reservoir 72 in order to run off any
water which at the commencement of the formation of steam, before the boiler
is thoroughly warmed through, may possibly have accumulated in the steam
chamber. Over the uppermost partition 86 a cover 115 is provided for the
gaseous products of combustion which are conveyed to the chimney 116.
exhaust steam from the engine flows through a pipe 96 which is firmly screwed
on the passage 14, Figure 4, to the feed heater 61. Here the steam warms the
outer tube 4 and then flows through an annular chamber 116 between the
cylinder 69 and the upper partitions 75 and 77 round the inner tubes 76 into
the same so that these latter also are warmed. A tap 97 serves for drawing.
off the residual water condensed from the exhaust steam, and is so placed that,
when the valve 73 is opened, water flows into the reservoir 72. The surplus.
exhaust steam flows out of the inner tubes 76 into the cylinder 98 and the
receiver 99 and then through a series of fine holes 100 formed in the wall of the.
The

page_text: said receiver and rises through the water in the reservoir where it then accumu
lates over the upper surface of the water 101 so far as any steam still remains
uncondensed. Three cylinders 102, 103 and 104 are inserted on the floor of the
reservoir which fit steam-tightly on the short cylinder 105 fixed in the cover 71
of the reservoir. The water flows out of the uppermost chamber of the reservoir
through the opening 106 in the cylinder 104 into the space between said cylinder
and the cylinder 103 and then through an opening 107 arranged diametrically
to the above mentioned opening and finally through the opening 108 also arranged
diametrically to the opening 107 into the innermost part of the reservoir from
whence water flows to the pump through pipe 59. The upper part of the feed
heater may thus be lifted off with the lids 71 of the cylinder 105 and again
replaced and that so tightly that no waste steam can escape through the joints.
At the inner sides of the cylinder 102, 103, 104 slightly tapering casings 109, 110
and 111 are fixed which project upwards somewhat over the upper surface of
the water in the reservoir. Numerous holes 112, 113, 114 are also provided above
the respective points of projection between the cylinder 102, 103 104 and the
casings 109, 110 and 111. The waste steam still remaining above the water inside
cylinders 102 passes between the casing 109 and the said cylinder downwards.
driving the water in front of it and escapes through holes 112. Steam then
again rises upwards through the water and then passes downwards between the
casing 110 and the cylinder 103 through holes 113. In a similar manner it
passes over the casing 111 and escapes upwards through holes 114 to the outer
chamber of-the-reservoir-and then upwards through the water.
When the motor is to develop power, water is first pumped into the-feed-heater
_by_hand_power, that is to say by rotating the crank 56, of which water a portion
reaches the boiler through the pipe-117-The-fire-is-then lighted
boiler and its products of combustion pass through the inner tubes 88 and the
escape through the chimney 116. Owing to the boiler and also the feed heater
being placed very high, all the heat which is to be obtained from the products
of combustion is given off, to the said tubes 88 and a thin layer of water surround-
ing them so that steam is rapidly formed which flows into the steam chamber 92
and further through steam pipe 93 to the engine. In the engine the steam
traverses the passages 15, 19, 10 and S1 and goes through the opening 45 into
the cylinder and escapes through the opening 47 and the passages 8, 9, 12 and 14
and the pipe 96 into the feed heater. By this means the driving wheel 29 is
thus rotated which gives power by means of the shaft 28, cogwheel gearing 50
and 51, Figure 2, and shaft 52 to the belt pulley 118 and from there the power is
conveyed by means of a belt to the apparatus which is to be operated. By a
further cogwheel gearing from the shaft 52 the pump spindle 53 is operated.
When the machine is started the pump 58 is constantly maintained by the same
in operation and pumps water into the feed heater. The exhaust steam which
has passed into the feed heater through the pipe 96 first warms the outer tubes 74
and then enters the inner tubes and warms them also so that the thin layer of
water between the tubes 74 & 76 is rapidly heated. As therefore the water
reaches the boiler considerably heated, steam is very easily raised which then is
superheated in the upper part of the boiler before it flows to the engine, thus
affording an economical advantage. As the exhaust steam which is not condensed
in the tubes enters the cylinder 98 and further flows along the casings 109, 110
& 111 through the holes 100 the water is heated up to 100° or nearly to this
temperature and therefore the pump must be placed so low that the water from
the reservoir runs into the same or else otherwise the formation of steam would
take place in the pump. The motor water thus reaches the feed heater boiling
hot.
This motor as is self evident from the foregoing has many good properties.
For instance the direction of movement of the driving wheel may be rapidly
changed the mechanism is simple; almost all the movable parts rotate, for
instance the pistons have no reciprocating movement but rotate round the central

page_text: line of the driving wheel whereby the machine receives a noiseless and even
travel. The cylinders have no long admission passages so that no steam escapes
un-utilized with the exhaust as is frequently the case with ordinary steam engines.
The boiler is of small size in proportion to its steam production and may be
rapidly heated in consequence of there being no great quantity of water con-
tained therein. The steam which passes to the engine is superheated or so
called dry-steamed and the water in the feed heater is raised by the waste steam
to the same temperature. The consumption of fuel is therefore considerably less
than in ordinary engines.
Dated the 20th day of 1900
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool,
Agents for the Applicant.
I, The Rev. MATHIAS JONSSON, of 5, Adelsgatan, Wisby, in the Kingdom of
Sweden, Minister of Religion, do hereby declare the nature of this invention and
in what manner the same is to be performed, to be perticularly described and
ascertained in and by the following statement; --
This invention has for its object a motor, which takes up little room, is inex-
pensive, light and handy and may be employed for driving all kinds of carriages,
steam boats and commercial establishments with both small and large requirements
of power.
It consists of a rotary steam engine with pistons in combination with a tubular
steam boiler and a feed heater. The direction of movement of the machine shaft
changes rapidly on a reversal of the steam inlet tap.
The invention shown in the drawings accompanying the Provisional Speci-
fication,
Figure 1 being a front elevation partly in section on the line -b of Figure 2,
Whilst Figure 2 shows the invention in plan view partly in section on the
line c-d-f-g of Figure 1.
Figure 3 is a section of a part of the steam boiler of natural size.
Figure 4 shows the steam engine seen from the side,
Figure 5 from the end, and
Figure 6 from above on an enlarged scale;
Figure is a section on the line - of Fig. 6;
Figure 8 is a cross section of the valve case on the line m--n, Figure 4 seen
from the left;
Figure 9 shows a section of the same valve case on the line o-p of Figure 4
and Figure S seen from above.
Figure 10 is a section of the driving wheel along the line -s of Figure 7
not considered as a cross section and seen from the left;
Figure 11 shows another position of the driving wheel;
Figure 12 shows the cylindrical piece 38, Figure 7 not considered as a cross
section seen from the left.
In the additional drawings accompanying this Complete Specification,
Figure 13 shows a modified arrangement of the steam-passage, and Figure 14
details of same.
Figure 15 shows a modified arrangement of steam-boiler with feed-water heater,
in front elevation partially in section on line tu of Figure 16 not considered

page_text: as a cross section. The latter figure shows the invention in a plan view in section
on line of Figure 15. In these Figures, 15 and 16, the feed water heater is
shown placed around the boiler which is in communication with a number of
tubes arranged around the furnace and filled with water.
On the pedestal or base 1, Figures 4 and 7, a support frame 2 is attached by
means of screws 3 and a cylinder 4 by means of the screw 5. On the end of
this cylinder, in the same piece, cock plugs 6 and 7 are arranged eccentrically
as regards the central line of the cylinder. These cock plugs communicate with one
another by means of passages 80 and 81 which at their other ends communicate
by means of passages and 10, Figures 8 and 9 with passages 12 and 13 in the
upper cock plug 11. A modified arrangement is shown in Fig. 13 and 14 where
the cock plugs are located eccentrically in relation to each other. These
passages 12 and 13 run obliquely and may either communicate with the
passages 14 and 15 or be shut off from them according as the handle 16
of the cock plug is turned laterally or as shown in the dotted position 17 in
Figure 4 upwards.
The steam enters the engine through the passage 15 and flows through the
passage 14 again out of the same. A pipe 18, Figure 9, leads from the passage 15
through the middle of the passage 14 and to the outside. In the rear wall
of the tube an opening 19 is arranged in such a way that when the safety valve 20,
Figures 4, 8 and 9, has been pressed backwards beyond the opening, the feed
passage 15 communicates with the escape passage 14. The safety valve is main-
tained-pressed-on-by means of lever 21, Figure 4, which is pivotally mounted_in
standards 22 and influenced by a spring 23 which is adjustably stretched or
strained through a slot 24 upwards and downwards on the standards, so that the
safety valve 20 can receive a varying load according to requirementsThis
latter remains standing open, when the hook 25 is hooked on the rod 21. The
cock case 26 is kept screwed firm on the cock 6 and is provided with a lubri-
cator 27, Figure 8, which provides the feed passage 15 with oil, said oil being
taken up by the steam and accompanying the latter through the engine, so that
the said engine is lubricated. A spindle 28 mounted in the frame 2 is attached
to the driving wheel 29 on which a side piece 30 is firmly screwed, which by
means of lead packing 31, Figure 7, or other suitable packing is washered on
the periphery against the driving wheel. The connecting rods 32, 33, 34,
Figure 11, may drop with their outer ends in grooves in the casing of the driving
wheel and with their inner ends in the pistons 35, 36, 37, which latter can slide
along cylindrical recesses provided in the cylindrical piece 38 which form the
actual steam cylinders. This cylindrical piece is easily revoluble on the cock
plug and provided with three fixed pins 39, Figures 7 and 11, which are
revoluble on the crank pieces 40 and which in turn are again revoluble on the
pins 41 fixed on the driving wheel 29. Owing to the driving wheel 29 and
the cylindrical piece 38 being mounted eccentrically to one another and connected
with one another by means of crank pieces 40, the pistons 35, 36, 37, must travel
one after the other against and away from the centre of the cylindrical piece, when
the wheel and the cylindrical piece rotate and vice versa, when the pistons are
driven by the steam successively away from the said centre and thus the wheel
and the cylindrical piece are caused to rotate. The pistons do not rotate forwards
and backwards as regard the axis 28 of the driving wheel, but they rotate on
or around the central line of the same so that all parts of the driving wheel 29
rotate whereby the machine receives an even and noiseless travel. In order to
adjust the cock plugs 7 in the cylindrical piece in such a way that the latter
can easily rotate on the former without allowing steam to escape, the two screws 42
are turned, so that the cock casing 26 and with it the cock plugs 7 are conveyed
to this or that side after which the screw 5 is tightened up so that the plugs
can no longer be moved. The passage 8 has in its wall openings 46, 47 and
the passage 81 openings 44, 45, which are arranged in the plugs.
Figure 12 shows the piston piece 38 of Figure 7 as seen from the left, whilst

page_text: pistons, cranks and plugs are removed. When steam under pressure is admitted
to the passage 15 it flows into the passage 10, Figures 9 and 8, if the plug 11,
Figure 9, stands as shown in the drawing, and then further through the passage 81,
Figure 8, into the cylinder 48, Figure 10, and drives piston 35, Figure 10, from
the end of the cylinder, so that the piston thereon assumes the position 36 of
Figure 11 and then the turning position 36 of Figure 10 so that the driving wheel
is turned to the left. The steam is then already shut off from the said piston,
and acts on another such piston, in fact the one which next follows in the rota-
tion. When the pistons come into the furthest position from the plugs 7 they
are again pressed against the plugs by the connecting rods on the further rota-
tion of the driving wheel to the left. The exhaust steam from the cylinders
escapes through the passage S, Figures 11 and S, and further passes through
passages 9, 12 and 14. When the plugs are rotated in diametrically opposite
directions the fresh steam flows from the supply passage 15 through the pas-
sages 13, 9 and 8, Figures 9, 8 and 11, into the cylinder and moves the driving
wheel 29 in the opposite direction. When the cock plugs 11 are so turned that
the handle 16 can extend outwards, the steam is prevented by the said plugs
from proceeding further and has for its consequence that the pistons are not
operated on by the steam and the machine remains stationary. The oil from the
lubricator follows the current of steam to the pistons and lubricates all the work-
ing parts in the machinery with the exception of the axle 28 which receives
its lubrication from other lubricators but this axle may also be lubricated from
the same lubricator 27 precisely like the other movable parts of the machine.
By means of the shoulder 31 the oil is retained in the driving wheel. A cog-
wheel 50 engages in a larger one 51, Figures 1 and 2, which is fixed on the
shaft 52, which drives the shaft 53 by means of cogwheel gearing. A wheel 55
is connected with the shaft 58 by means of a clutch sleeve 54, Figure 2, and
when the sleeve is drawn back the wheel travels loosely on the shaft which then
may be turned by means of a crank 56 fixed on one end of the shaft. At the
other end of the shaft a crank dise 57 is fixed which is provided with a pin
movable in a groove, said pin driving an ordinary pressure pump 58, the suction
tube 59 and pressure tube 60 of which are in communication with a feed heater
placed in the pedestal 62. By means of a valve 63, which is raised by a lever 64,
air or steam is allowed to escape which has possibly accumulated under the suc-
tion valve 65. The water from the pump is forced into the space or intermediate
chamber 43 between the partitions 66 and 67 which are connected by screws 68
and a ring 49. watertightly with one another at some distance apart and also
are fitted tightly in the cylinder 69. This cylinder is covered at the top with a
covering 70 and below is attached to a bottom plate 71 which also serves simul-
taneously as cover or lid of a water reservoir 72. On this latter the cover 71
is placed and provided with a valve 73 but said cover is not fixed firmly but
may be removed. On the bottom 66 outer tubes 74 are fixed which are also fixed
at the top to another bottom plate 75. Inner tubes 76 are fixed at the lower
end at the bottom plates 67 and at the upper end on a bottom plate 77. Between
the plates which are screwed together by means of screws 78 à ring 79 is placed
on the outer edges so that between the partitions an intermediate chamber or
space 80 is formed. Between these outer and inner tubes the water rises in a
layer of the thickness of half a millimetre into the intermediate chamber 80.
from whence it reaches by means of a pipe 117 the steam boiler 82 and here
comes between the partitions 83 and 84 which are held some distance apart by
means of threads or in other suitable manner on the outer casing 85 On the
upper end of the casing, partitions 86 and 87 are also fixed apart at some distance
from one another. In the modified arrangement shown in Fig. 15 and 16 the
water passes from the tubes 117 first into the annular piece 120 and hence through
the tubes 121, which surround the furnace 94 except at the furnace door; to the
annular piece 122. The water continues through a number of apertures 123 in
between the partitions 83 and 84. -The steam boiler is filled with tubes of which,

page_text: however, a number are left out in the drawing in order to provide more room for
the denotations. Between the outer partitions 83 and 86 inner tubes 88 extend
which are steam-tightly fixed in said partitions. The outer tubes 89 are also
fixed steam tight in the inner partitions 84 and 87. The distance between the
inner and the outer tubes 89 amounts only to half a millimetre and between
these tubes the water and eventually the resulting steam passes unwards into
the intermediate chamber 90 between the floors 86 and 87. The steam flows
therefore afterwards in the steam chamber 92 of the boiler round the outer
tubes 89 through numerous small openings 91 in the partition 87. From
here the steam passes through the steam pipe 93 which is the feed pipe of
the steam engine to the passage 15, Figure 4, where the pipe is firmly screwed on.
The steam boiler is arranged above the fire place 94 and has a discharge pipe 95
fitted with a tap and leading to the water reservoir 72 in order to run off any
water which, at the commencement of the formation of steam, before the boiler
is thoroughly warmed through, may possibly have accumulated in the steam
chamber. Over the uppermost partition 86 a cover 115 is provided for the
gaseous products of combustion which are conveyed to the chimney 116. The
exhaust steam from the engine flows through a pipe 96 which is firmly screwed
on the passage 14, Figure 4 to the feed heater 61. Here the steam warms the
outer tubes 74 and then flows through an annular chamber 116 between the
cylinder 69 and the upper partitions 75 and 77 round the inner tubes 76 into
the same so that these latter also are warmed. A tap 97 serves for drawing
off the residual water condensed from the exhaust steam, and is so placed that,
when the valve 73 is opened, water flows into the reservoir 72 The surplus
exhaust steam flows out of the inner tubes 76 into the cylinder 9S and the
receiver-99-and-then-through-a-series-of-fine-holes-100-formed in the wall of the
said receiver and rises through the water in the reservoir where it then accumu-
lates over the upper surface of the water 101 so far as any steam still remains
uncondensed. Three cylinders 102, 103 and 104 are inserted on the floor of the
reservoir which fits steam-tightly on the short cylinder 105 fixed in the cover 71
of the reservoir. The water flows out of the chamber of the reservoir through
the opening 106 in the cylinder 104 into the space between said cylinder
and the cylinder 103 and then through an opening 107 arranged diametrically
to the above mentioned opening and finally through the opening 108 also arranged
diametrically to the opening 107 into the innermost part of the reservoir from
whence water flows to the pump through pipe 59. The upper part of the feed
heater may thus be lifted off with the lids 71 of the cylinder 105 and again
replaced and that so tightly that no waste steam can escape through the joints.
At the inner sides of the cylinders 102, 103, 104 slightly tapering casings 109, 110
and 111 are fixed which project upwards somewhat over the upper surface of
the water in the reservoir. Numerous holes 112, 113, 114 are also provided above
the respective points of projection between the cylinders 102, 103, 104 and the
casings 109, 110, 111. The waste steam still remaining above the water inside
cylinder 102 passes between the casing 109 and the said cylinder downwards.
driving the water in front of it and escapes through holes 112. Steam then
again rises upwards through the water and then passes downwards between the
casing 110 and the cylinder 103 through holes 113. In a similar manner it
passes over the casing 111 and escapes upwards through holes 114 to the outer
chamber of the reservoir and then upwards through the water. When the
motor is to develop power, water is first pumped into the feed heater
by hand power, that is to say by rotating the crank 56, of which water a portion
reaches the boiler through the pipe 117. The fire is then lighted under the
boiler and its products of combustion pass through the inner tubes SS and then
escape through the chimney 116. Owing to the boiler and also the feed heater
being placed very high, all the heat which is to be obtained from the products
of combustion is given off, to the said tubes 88 and a thin layer of water surround-
ing them so that steam is rapidly formed which flows into the steam chamber 92

page_text: and further through steam pipe 93 to the engine. In the engine the steam
traverses the passages 15, 9, 10 and 81 and goes through the opening 45 into
the cylinder and escapes through the opening 47 and the passages 8, 9, 12 and 14
and the pipe 96 into the feed heater. By this means the driving wheel 29 is
thus rotated which gives power by means of the shaft 28, cogwheel gearing 50
and 51, Figure 2 and shaft 52 to the belt pulley 118 and from there the power is
conveyed by means of a belt to the apparatus which is to be operated. By a
further cogwheel gearing from the shaft 52 the pump spindle 53 is operated.
When the machine is started the pump 58 is constantly maintained by the same
in operation and pumps water into the feed heater. The exhaust steam which
has passed into the feed heater through the pipe 96 first warms the outer tubes 74
and then enters the inner tubes and warms them also so that the thin layer of
water between the tubes 74 and 76 rapidly heated. As therefore the water
reaches the boiler considerably heated, steam is very easily raised which then is
superheated in the upper part of the boiler before it flows to the engine, thus
affording an economical advantage. As the exhaust steam which is not condensed
in the tubes enters the cylinder 98 and further flows along the casings 109, 110
and 111 through the holes 100 the water is heated up to 100° or nearly to this
temperature and therefore the pump must be placed so low that the water from
the reservoir runs into the same or else otherwise the formation of steam would
take place in the pump. The motor water thus reaches the feed heater boiling
hot.
This motor as is self evident from the foregoing has many good properties.
For instance the direction of movement of the driving wheel may be rapidly
changed; the mechanism is simple; almost all the movable parts rotate, for
instance the pistons have no reciprocating movement but rotate round the central
line of the driving wheel whereby the machine receives a noiseless and even
travel. The cylinders have no long admission passages so that no steam escapes
un-utilized with the exhaust as is frequently the case with ordinary steam engines.
The boiler is of small size in proportion to its steam production and may be
rapidly heated in consequence of there being no great quantity of water con-
tained therein. The steam which passes to the engine is superheated or so
called dry-steamed and the water in the feed heater is raised by the waste steam
to the same temperature. The consumption of fuel is therefore considerably less
than in ordinary engines.
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. A steam motor, characterized by the water being first forced from a water
reservoir (72) through a feed pump into a chamber (43) formed of two parti-
tions (66 and 67) arranged together at a small distance apart in the lower part
of a feed heater cylinder (69) which chamber (43) communicates with a similar
one (80) formed of partitions (75, 77) in the upper part of the cylinder in such
a way that outer tubes (74) passing through the cylinder (69) and fixed in the inner
partitions (75, 66) open into the said intermediate chambers (43 and 80) through
which tubes there run inner tubes (76) which open to the outside and are tightly
fixed in the outer partitions (67 and 77) so that the water driven into the under
intermediate chamber rises between the outer and inner tubes into the upper
intermediate chamber, from which it is conveyed through a tube (117) into the
steam boiler between two partitions (83 and 84) arranged in the lower part of
said boiler in, the manner herein before mentioned, the space above which is
traversed, as in the case in the feed heater cylinder by inner and outer tubes (88
and 89) between which tubes the water and eventually the resulting steam passes
into a chamber (90) formed by two tightly inserted partitions (86 and 87) in
the upper part of the steam boiler, of which partitions the inner one (87) is pro-
vided with a series of holes communicating with the steam chamber itself or

page_text: with the chambers outside the tubes, so that the water and eventually the resultant
steam flows into the said steam chamber and from here reaches the engine, sub-
stantially as herein befora described.
2. In a steam motor such as described, a draw-off or exhaust pipe (96) from the
engine, through which waste steam is conveyed into the feed heater cylinder (69)
said steam warming the outer tubes and further travelling over the upper parti-
tions (75, 77) because these latter in contrast to the lower partitions are not
arranged close to the cylinder but leave an annular interstice (116) between them
and the cylinder, from which said steam passes into the inner tubes so that these
latter also are warmed while the thin layer of water flowing between the inner
and outer tubes is easily heated and the steam is further conducted from these
inner tubes into a cylinder (98) immersed in the water reservoir and from thence
into a vessel (99) provided with a series of fine holes (100) arranged in the
under part of the reservoir, so that the water in the reservoir is considerably heated
before it reaches the feed pump, whilst the exhaust steam already condensed in
the cylinder is conveyed by a tap (97) directly into the reservoir, substantially
as described.
3. In steam motors of the kind described, the arrangement of cylinders (102,
103, 104) fixed in the bottom of the reservoir and surrounding one another and
also surrounding the cylinder (98) which is immersed in the water reservoir,
each of which cylinders (102, 103 and 104) is fitted steamtightly round a short
cylinder (105) fixed in the cover (71) and which are provided beneath with
holes (106, 107, 108 respectively) so that water from the outer chamber can reach
the innermost cylinder-in-the-bottom_of_which a pipe (59) leading to the feed
pump opens, whilst on the inner sides, casings (109, 110 and 111 respectively)
-tapering slightly upwards are fixed which project somewhat above the level of
the water and have above their points of connection-with-the-cylinders in the
latter a row of fine holes (112, 113, 114) so that the steam reaching the inner
cylinder (102) finds its way into the outer chamber and is gradually condensed, thus
warming the mass of water in such a way that the water contained in the innermost
cylinder is heated the most, substantially as described.
4. In steam motors of the kind described, the arrangement of the steam supply
passage (15) and the steam exhaust passage (14) to communicate with two pas-
sages (12 and 13) arranged in a cock plug (11) in such a way that the said exhaust
and also the feed passages by the turning of the cock plug may be each alter-
nately brought into communication with one of two passages (8 and 81) running
parallel to one another, the ends of which consist of cock plugs (6
and 7) one of the ends of which has two openings (45 and 47) each
communicating with the longitudinal passages and directed in opposite directions,
and is revolubly mounted with a cylindrical piece (38) provided with radially
arranged steam cylinders, which according to the position in which they find
themselves each communicate with the one or other of the said openings (45 and
47) and in which pistons (35, 36 and 37) are arranged on which
connecting rods (32, 33, 34) are revolubly mounted, whilst the other
ends of said plugs (6 and 7) are revolubly fixed in a driving wheel (29) eccentrically
mounted as regards the cylindrical pieces which then comes into rotation when
the position of the pistons with reference to the cylindrical pieces is changed
by the steam cylinders communicating with the steam supply passage and steam
operating the pistons, substantially as described.
5. In steam motors of the kind described the arrangement for governing the
movement of the cylindrical pieces with reference or in proportion to the driving
wheel, consisting in the cylindrical piece being provided with three fixed pins (39)
revoluble in crank pieces (40) which crank pieces in turn are revoluble on pins (41)
fixed in the driving wheel (29) substantially as described.
6. In steam motors of the kind described, an arrangement characterized by the
furnace of the boiler being directly surrounded by vertical tubes (121) placed
closely together and communicating at one end with the feed water heater while

page_text: their other ends communicate with the boiler so that the water will enter highly
heated in the latter substantially as described.
7. The general construction and combination of parts, taken as a whole, forming
the improved motor, substantially as described and illustrated.
Dated this 31st day of October 1899.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant: