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Jan. 14, 1947.
` D_ M_ PALM
Filed Nov. 27», 194s
:s_sheets-sheet~ 1
Jam 14, 1947.(
' Filed Nov.` 27, 1943
5 Sheets-Sheet 2
D_ M_ PALM ;
Filed Nov. à?, `1945
s sheets-sheet 5
Patented Jan. 14,_ 194'?
`FUEL resumo MEcHeNIsM
Dwight M. Palm, Cleve-lana Heights, ohio
Application November ,27, '1043, serial No. 512,076
3 Claims.
(o1. 214-36)
` '
2 .
This invention relates to mechanism for sup
plying hard fuel to a combustion apparatus, more
to those skilled in the art to which my invention
relates from the following description taken in
connection .with the accompanying drawings,
`particularly apparatus of the type wherein the
" wherein
supply and feeding of the fuel into the combus
tion chamber of the apparatus takes place
through upper and lower chambers having valve
controlled openings, which valves are separately
but >co-fordinately controlled and operated to pre
vent the escape of gases and other residue of,
combustion into and throught-,he supplying and
feeding mechanism. The invention is, for illus~
trative purposes, shown as applied to a gas pro
ducer, to which the fuel is delivered in batches,
at intervals, dependent on _the rate of increase
or decrease in fuel consumption, whereby the
producer may be maintained adequately charged
Another object of the invention is to provideY
in mechanism of this type having upper and
lower valves, improved means for operating the
valves in any desired co-ordinated~relation.
Another object of the invention is to provide
yin mechanism of this type' having upper and i.
lower valves, an improved operating means there
for which may be remotely controlled.
Fig. 2 is a side elevation, parts being broken
Fig. 3 is a section on the line A2te-3V of Fig, 1_.
Fig. 4 is a fragmentary section through the
Fig. 5 is a section on the line 5--5 of Fig. fl,
Figs. 5a and '6 are fragmentary elevations
with fresh fuel.
One object of the invention is to provide an.
improved mechanism of this character wherein
the number of parts are reduced and simplified
in construction and fewer movable parts are
required, whereby cost of construction, opera
tion and up-keep is materially reduced and long
life ofthe mechanism results,
Fig. 1 is a front elevation of >a mechanism em
bodying my invention.
Another object of the invention is to provide
l(parts being broken away) showing modified
forms of construction.
In the drawings, l indicates as an entirety a
casing of any desired shape in cross section, pref?
erably substantially circular in shape, having _on
.its lower end» an annular flange la supported on
and secured to the-annular flange on the upper
end of a suitablegas producer, indicated at A,
having a flue a` for the out-take of the'gases.
The upper end of the Acasing is shaped to provide
an off-set section Ib in ‘connected relation to a
chute lc, the intake opening of which is related
to the discharge opening of a hopper B, which
opening is controlled by a slide valve b. The
walls of the off-set section lb and a valve` device
2 therewithin control the feed of the fuel C from
Nthe chute Ic, as later set forth. Above the flange
. la, the inner wall of the casing I is provided in
teriorly with spaced, annular, inwardly extend
ing walls 3, the inner peripheries of which have
fin mechanism of this type having upper andg,
a common axis and form seats Za for valves
lower valves, improved means for automatically"
'controlling the operation of the valves dependent
4, 4a, When the valves 4, 4a,` are in closed posi
tion, they cci-operate with the adjacent annular
upon the rise and fall of the temperature inthe
walls 3, to form upper and lower closed com
partments 5,`5a, the upper compartment E being
` '
Another objectfof the invention is to provide,
in communication with the off-set section lb so
in mechanism of this type having upper and 40 as to receive fuel C therefrom; but ,when- either
lower fuel feeding chambers and valves therefor,
’valve is opened the fuel in the adjacent com#
improved means for operating the valves in- co’
ypartment gravitates downwardly. Accordingly,
ordinated relation and supplying fuel to the upper
¿if the valve '4 is operated to open position, any
fuel in the compartment 5 will gravitate into the
Another object of the invention is .to provide 45
Van improved mechanism of this type having
upper and lower valve controlled chambers and
fluid operated means for operating the valves
therefor in co-ordinated relation.
Another object of the invention is to provide
an improved mechanism of this type constructed
Ato provide for ready cooling of the valve which
compartment 5a and if Athe valve. 4a is operated
to open position any fuel in the compartment 5a
will gravitate into the> producer A. For, obvious
reasons the valves 4, 4a, move downwardly rela
tive to their seats when opened; also their upper
surfaces are dome-shaped and the upper sur“V
faces of the annular wallslS are inclined down'
wardly and inwardly, whereby gravitation .of
.is subject to the heat generated in the combus
fuel from each compartment is facilitated.
tion apparatus. 1
shown each` wall 3` is Ofsectional"construction,
so that its inner marginal portion ‘may consist
Other objects of the invention'will'be apparent
of an annular ring 2a’ formed of a heat resisting
alloy, removably secured to the walls in any
suitable manner.
The side walls of the casing below the com-
a rocker fulcrumed on >a standard I4 fixedly
mounted on thetop wall Id. The rod I2a has
pivotal and slidable connection with the outer
end of the rocker I3 by means of a pin and an
partment 5a, between the compartments 5, 5a, 5V elongated sl-ot I2b’ therefor formed in the rocker,
andv above the upper compartment 5 may be
formed with one or more openings 5b, each closed
by a plate which may be removably bolted in
position or otherwise mounted on the casing wall.
to permit endwise movement of the rod and
swinging movement of the rocker; the connec
tion vbetween the upper end of the rod 8 and inner
end of the rocker i3 is of :similar character. The
The valves .4,_4a are supported in axial aline- 10 lower _end of the cylinder `I2 is provided with
ment and> operated vertically,î ,'reCtiIineally,
a port connected to aA pipe I5 through which
whereby their upper walls engage and disengage
steam is supplied (preferably at a predetermined
the valve seats uniformly throughout their cirpressure, as later set- forth) to the cylinder I2
cumferences, which arrangement prevents unbelowthe piston I2a’ and exhausted therefrom,
even wear on these seats on the one hand and 15 the supply and exhaust being controlled by a
on the other hand tends to insure tight Vclosîlfler
valve mechanism, indicated as 'an entirety at I6.
of the valves so'that leakage of gases of comAs will 'be observed, when steam is supplied t0
bustion and soot upwardly into they casing is
the cylinder to effect pressure on the piston, the
minimized and danger of ingredients in the gases .
rod I2a is operated upwardly and through the „
and soot clogging'the mechanism is avoided.
20 rocker i3 moves the rod t downwardly to open
The top Well id Of the Casing i iS thickened
the valve-4a (see dottedlinesin
3). The up
to provide a relatively long hollow Iboss Id’ the
per end of the cylinder I2 is provided with a
axî's of which is axially related to the axes of the
vent I‘I to permit displacement of air when the
walls 3. 6 indicates an elongated bushing suitpiston I2a’ is operated upwardly. Below the
ably ñtted in the boss Id’ and slidably support- 25 cylinder I2, the rod I2a is provided with a collar
ing a sleeve 'I, the latter extending downwardly ' i8, preferably formed integrally on the upper end
through the compartment 5 and preferably rigid>of a sleeve Iél'a, which may be secured to the
1y connected at its lower end to the valve 4. 3 inrod I2a in a manner which permits endwise ad
dicates a rod (which is preferably hollow for
justment thereof.
The collar I 8 forms an abut
a purpose later set forth) slidably fitting the 30 ment for a spring I9 coiled around the rod I2a
and interposed between the collar I8 and lower
through the valve 4 and compartment 5a and
end 0f the cylinder I2 and arranged to be com
preferably rigidly connected at its lower end t0
pressed when the rod I2a moves upwardly, so
the valve 4a. In this arrangement, the valves
that when the steam supply to the cylinder I2
4, 4G, are DOSitîl/'ely 'guided from and t0 their 35 is cut ofi', and pressure on the piston I 2a re
seats in each operation thereof. 'The sleeve 'i
11er/ed, the Spring I9 operates te more the red
and the rod 8 extend upwardly beyond the top
I2a downwardly to close the valve da. A stop
wall Id and arel OperatiVGly COHIleCted t0 an
indicated at I 2e is provided to limit the down
OPSrating mechanism, indicated as an entirety
ward movement of the piston so that when the
at 9, for intermittently reciprocating the sleeve
'I and rod 8 each relative to the other in co-ordiDated relation, whereby during the peI‘ÍOd that
the valve 4 is closed, the valve 4d Opens t0 Permit
gravitation of the fuel in the compartment 5d
into the producer` A and closes, and during the
Del‘îOd that the valve 4a is closed the valve 4
opens t0 permit gravitation of the fuel in the
compartment 5 into the COmpal‘tmel'lt 5a and
closes; also, during the operation of the Valve
4a to open and closed position (at which time
the valve 4 ís closed) the agitating or valve device 2 is operated, as later set forth, t0 supply
fresh fuel t0 the COmPaI’tment 5~ The aeítatîhg
device 2 is preferably operatively Connected te
the `mechanism 9 for co-ordinated operation
therewith during the opening and closing of the
valve 4a, by mechanism indicated as an entirety
40 piston is moved downwardly te its normal pesi
tion, it is above the steam -inlet and exhaust
port“, for the pipe l5~ The Stop [2e as shown
consists of an annular shoulder provided in the
cylinder by reducing its lower end (see Fig. 2).
45 The sleeve Ißa is preferably adjustably ñxed to
the rod I2a at a predetermined position so that
when the valve ¿la engages its seat the spring
I9 is under slight tension, the effect of which
is to seal the valve 4a in Closed position. lzœ
50 indicates a cylinder suitably supported on and
exteriorly of the casing I, preferably in diametri
cal relation to the cylinder I2. 20 indicates a
rod reciprocatably mounted in the end walls of
the cylinder 12x and extending to a point there
55 above and therebelow and provided within the
cylinder I2cc with a piston similar to the piston
I2a’ normally disposed adjacent the lower end
at I0, to which reference will later be made.
The mechanism 9, as Shown in Figs. 1 t0 5,
thereof. The upper end of the rod 2i! is con
nected through linkage I3x to the upper end of
inclusive, is fluid operated; that is, it may be 60 the sleeve -I, preferably consisting of a rocker
operated by air or oil supplied under pressure,
fulcrumed on ,a standard I 4x, which is ñxedly
but for illustrative purposes I use steam supplied
supported on the top wall Id.
as hereafter set forth by a pipe II. The mechThe inner end of the rocker |332 is provided
anism 9 consists of the following: I2 indicates
with bifurcations which are pivotally connected
a cylinder suitably supported at one side of and _65 to bifurcations provided on the upper endy of the
eXteriOrly of the casing I. I2a indicates a rod
reciprocatably mounted in the end walls of 'the
sleeve 'I, whereby these parts straddle the rocker
I3 vand rod I2a and lthe connections therebe
cylinder I2 and extending to a point thereabove
tween. The upper end of the rod 20 and ad
and therebelow and provided within the cylinder
jacent end of the rocker are pivotally and slid
with a piston I2a’ (see Fig. 2) normally dis- 70 ably connected by means of a pin and an elon
posed adjacent the lower end thereof. The lower
gated slot 25a formed in the rocker and each
end of the rod I2a has sliding support in a
lbifurcation on the inner end of the rocker I3x
‘bracket I2’. The upper end of the rod I2a is
is similarly connected to the adjacent bifurca
connected through a linkage I3 to the upper end
tion on the sleeve 'I to permit endwise move
of the rod 81 the linkage preferably consisting of 7.5 ment of the rod and sleeve 4and swinging. move'
ment ofthe rocker. The lower end ofthe cylin-v
der I 2o: is provided with a port connected to a
pipe I 5a through which steam is supplied (prefer
ably- at a predetermined pressure, as later set
forth) to the cylinder |21: below the piston there
in and exhausted therefrom, the supply and eX
haust being controlled by the valve mechanism
I6. As will be observed, when steam is supplied
sion offtiie'l spring\23_,`whereby the disk 22 will
be rotated and swing the valve member 2 to
the position shown in dotted lines in Fig. 3.
Upon the movement of the rod |2a downwardly,
the spring 23 will rotate the disk 22 and swing
the rocker 25’ in the opposite direction. `I1" in
the return movement of the valve member 2, fuel
becomes lodged between it and the inner end wall
to the cylinder |2œ to effect pressure on the piston
of the olf-set Ib, the band 22a will slip on the
therein, the rod V2|] is operated upwardly and 10 disk -without turning it. The outer end of the
through the rocker |3œ moves the sleeve 'l' down
rocker arm 25a is preferably provided with a
wardly to open the valve 4 (see dotted lines in
roller to reduce friction between it and the col
Fig. 3). The upper end of the cylinder is‘pro
lar |8’.` The rocker 25' is preferably provided
videdV with a vent Ilœ to permit displacement
with a laterally extending arm 25b carrying a
of air when the piston is operated upwardly. 15 roller at its outer end in position to be engaged
Below the cylinder |2111, the rod 2li is provided
by the inner end of a rod 26. The rod 26 is
with a collar | 8:12, adjusta-bly held in position
screW-threadedly mounted in an internally
thereon by a nut |8112’. The collar |851: forms an
threaded member 21 fixedly supported on the
abutment for a spring lem coiled around the rod
casing |,‘whereby the rod 2E may .be adjusted
20 and interposed between the collar and the 20 endwise to swing the rocker about its fulcrum to
lower end of the cylinder l 2:1: and arranged to
relate the rocker arm 25a to the collar- |8’. By
be compressed when the rod 20 moves upwardly,
adjusting the rod Vendwise inwardly, the rocker
so that when the steam supply to the cylinder
25' will be rocked counter-clockwise (one adjust->
|2az-is cut off, and pressure on the piston relieved,
ed position of the rocker being shown in dotted
the spring |9a: operates to move the rod 20 down 25 lines in Fig. 2) and position the outer end of
wardly to close the Valve 4. A stop is provided
the rocker arm 25a in spaced relation to the
in the cylinder to limit the downward movement>
collar I8’` when the latter is in normal‘position.
of the‘piston, so that when the piston is in its
Accordingly, when the rocker is adjusted as above
normal position, it is above the steam inlet and
set forth, the collar I8' will‘move a predeter
exhaust port. AThe collar lßsc is preferably ad 30 mined distance before engaging the rocker arm
justably ñxed to the rod 2|) in a predetermined
25a and operating, the rocker. By adjusting the
position'so that when the valve 4 engages its
rod 26, the movement of the rocker 25' and disk
seat the spring |950 is under slight tension, the
22 can be regulated to decrease the quantity of
effect of which is to seal the valve 4 in closed
fuel permitted to gravitate to the compartment
position. ‘
35 5 in‘ each operation of the valve member 2.
The agitating and feeding device 2 consists of
The bottom annular wall 3 for the compart
a member fixed to a rock shaft 2| mounted in
ment 5a is preferably provided with an annular
the side walls `of the off-set lb and arranged to
chamber 3:1: connected with valved inlet and out
be oscillated thereby. The agitating member 2
let connections 3x', whereby water may be circu
serves as a valve between the chute lc and com 40 lated through the chamber to maintain the wall
partment 5 and extends across the off-set Ib, its
3` cool.` Due to contact of the adjacent ring 2a'
upper side preferably being flat so that when in
with the wall 3, a portion of the heat imparted
normal position it closes the lower end of the
to the ring 2a’ will be conducted to the wall 3,
chute Ic (see Fig. 3) and serves as a support for
so that the ring 2a' is maintained relatively cool.
the fuel therein, but when rocked to the position
As will be observed the valve 40H1,` in position to
shown in dotted lines (Fig. 3) it provides between
be heated by the combustion taking place in the
its inner end and the inner end wall of the off-set
producer, but due to the mounting of the valves
Ib an opening through which the fuel gravi
4, 4a, I am able to provide for cooling the valve
tates into the compartment 5. The outer end
4a in a simple manner. As shown, the valve 4a
wall of the off-set is preferably curved on a ra 50 is hollow to provide therein a chamber- 4a’ into
dius struck from the axis of the rock shaft 2|
which the rod 8 (which is hollow as already set
and the outer end of the agitating member 2 is
forth) extends. This construction permits the
curved concentric to the outer end wall of the
provision in the rod 8 of a small pipe 28 suitably
off-set Ib, so that no space in which the fuel can
connected to a nipple 28a at the upper end of the
lodge, between these parts may exist or result
rod and extending into the chamber 4a' at its
due to oscillation of the device 2. The mecha
lower end, the nipple 28a being connected to a
nism I0 for operating the agitating or valve mem
flexible hose 28a’ -leading from a source of water
ber 2 consists of the following: 22 indicates a
supply under pressure, the water supplied to the
disk fixed to the rock shaft 2| exteriorly of and
chamber 4a’ being discharged therefroml through
at one side of the off-set Ib. 22a indicates a 60 the pipe 8‘around the pipe 28 and flowing out at
flexible band frictionally engaging a portion of
the upper end of the rod 8 through a nipple 28h',
the periphery ofthe disk 22, the outer end of
which is connected by a flexible hose 28221’ `leading
the band 'being connected to one end of an ex
pansîon spring 23, the opposite end of which is
to a drain or sump.
The steam supply pipe || is provided with an
fixed to an adjustable anchor 23a mounted on 65 adjustable pressure regulating valve 29|, of any
the casing | (see Fig. 2). The opposite or inner
desired construction, arranged to be set at a pre
end of the band 22a is connected through a link
determined pressure (preferably at 70 lbs. per
24 to one arm 25 of a rocker 25’ fulcrumed on
square inch), whereby the pressure of the steam
the casing |, the opposite arm 25a of the rocker
supplied to the valve mechanism I6 will at all
25' being disposed inthe path of a collar I8’ on 70 times be uniform. The valve mechanism I6 is
the lower end of the sleeve |8a, so that when
preferably of the rotary type, and driven through
the rod |2a and sleeve move upwardly, the col
a suitable reduction gearing 30 by a motor 3|,
lar I8’ will swing the rocker V25’ counter-clock
which is connected in a circuit 32 to mains 33.
wise (as viewed in Fig. 2) and effect a pull on
In the herein disclosed application of my in
the-"inner `end ofthe band 22a-_ against the ten
Ventioirrthe >circuit 32 is.provided `with :a ‘switch
32’ which is normally opened, so that` the’fmotor
3|, the valve mechanism I6 and the operating
mechanism 9 are normally at rest, but provision
is made to automatically close and open; the`
switch to start and stop the motor to effect voper
ation of these mechanisms dependent‘on the heat
of the gases liowing through the ñue a. For this
purpose I provide in the flue a an electro-thermo
tate clockwise, so that the-steam is sl-llìr?ied> to the
cylinder [2:1: to effect operation ofthe-Valve 4 and»
exhausted therefrom prior to the supply of steam
to the cylinder I2 and operation of the valves 4a,
the speed of the valve elements being so regulated
that during the period between the cut-olf ofthe
steam supply to each pipe I5, I5a, and its exhaust
therethrough the valve 1i or 4a controlled thereby
remains open long enough to permit gravitation
101 of the fuel from the adjacent compartment.
couple a’ set to operate at a predetermined degree
of temperature, so that when these gases rise-in
Fig. 6 illustrates a modified form of construc
temperature, due to >combustion in the producer
tion wherein the sleeve ‘I and hollow rod 8, which
A, to or above the predetermined degree, the
are connected to the valves 4, 4a, respectively,
switch 32’ will be operated‘to close the circuit 32
are connected to linkages |393', I3zc”, respective
and thus start the motor 3| in operation. The
,- ly, in the manner already set forth andthe
motor in turn operates the valve mechanism I5
linkages in> turn are operatedv and controlled by
whereby steam is supplied to the`mechanism 9
electrical means to coordinate the movements of
to operate the valves 4, 4a, and feeder 2, in co
the sleeve and rod in the manner already _set
ordinated relation as already set forth, whereby
fresh fuel (coal and the like) is delivered to the
forth. In this view, 34, 34a, indicate electric
compartment 5, then to the compartment 5a and 2.0 motors each connected by leads 35 to suitable
iinally fed to the producer a. These operations
contacts in a casing 36 having a rotary switch
will continue until the temperature of the gases in
device therein driven by a motor 31, the device
the flue a drops to a point below the predeter
and motor being supplied with current from mains
mined temperature, whereby the electro-thermo
38, the switch device serving to close one circuit
couple a' will open the switch 32' and stop the ¿_ and break the circuit and then to close the other
circuit and break it, (a) the closing and opening
The valve mechanism I6 comprises a casing I 5a
of each circuit being effected during theA period
having conically shaped seats into which valve
the other circuit is open andv (b) each circuit
elements |66, Ißb’, rotatably fit, the inner ends
being closed for a period longv enough for the
of the latter being connected together by an ir
shaft of the adjacent motor 3,4, or 34a, to lmake
regular shaped projection |60 fitting a comple
one revolution, whereby the sleeve 1 and rod 8
mentary opening formed in the other element.
are operated relative to each other in coordinated
The element |612 is removably connected to a
relation. The linkages |3111', |393”, and their
fitting I 5d held in position by a cap, I6e which is
operating connection with the motors 34, 34a,v
threaded into the adjacent end of the casing Ilia, y respectively, are similar in construction and op
a suitable bearing being provided between the
eration, so that one linkage and its connection
fitting Ißdand cap Iße and an expansion spring
with the adjacent motor will be referred to,
ISÍ is provided between the bearing and the ad
that is, the linkage |333’ connected to the rod’ß.
jacent valve element to retain the latter in its
This linkage comprises a rocker 39 fulcrumed on
seat. The valve element I6b’ is mounted simi
a standard 40, and connected at its inner, endV to
larly to the valve element I6b, except that the 40 the rod 8. The outer end of the rocker 39 is piv
fitting |601 is connected (preferably integrally)
otally connected to tie outer end of a sectional
to a shaft |69, which is coupled to the shaft 33a
member di, the inner end of which is pivotally
of the reduction gearing 30 and driven thereby.
connected to a crank d2- iixed to the‘shaft of
The valve element ISD’ is provided with a’duct
the adjacent motor 313. The member M consists
|693, whereas the valve element IBb is provided
of an inner device lIIa of tubular'form having a
with a duct Ißsc’, these ducts being in diametrical
reduced innerr portion Mx pivotally connected
relation. As'shown in Fig. l, the steam supply
at its outer end to the crank @Zand an enlarged
pipe II terminates in branches IIa, Ila', each
outer portion Msc' enclosing a coiled expansion
connected to a port preferably formed in the 50 spring ¿I3` and an outer device Ma’ pivotally con
upper wall of the Valve casing Ißa. The valve
nected at its outer end to the outer end of the
casing is provided (a) at one side with alined
rocker 39. The device Ma’ is provided with a
ports, one thereof being connected to the pipe I5
¿Hb slidably fitting the inner wall of the`
and the other being connected to the pipe |5a
enlarged portion día" of the device dia and a
and (b) at its bottom with alined ports connected
to exhaust pipes |5œ, |59t’, respectively, prefer
ably leading to the air blast of the- producer? A.
55 stem or shank Mb' which extends into and slid-`
ably ñts the reduced» portion Mx of the device.
Ma, the spring 4-3 being interposed between the
head ¿Ib and a cap-415. which is threaded on the.v
of the valve element lëb’during rotation thereof
outer end of the device Ma and through which
it registers with the ports for the pipes I Ia and I5V
device ela' slidably extends. In this ar
to supply steam to the cylinder I2 and in another
rangement, w’nen current to thelmotor is cut
position it registers with the ports for the pipes
off, the crank d2 is in the position shown, but
I5 and |59: to permit exhaust of the-steam‘to and
due to operation of the switch device in the cas
through the latter pipe, the ports for the` pipes
ing 33, the motor 34 is operated'to effect one
I Ia, I5 and I5at- being closed during the remaining
rotary movement of the Valve elements, whereas 65 rotation of its shaftl and then stopped, so that
the crank d2 swings upwardly and downwardly
during the period the ports to the pipes IIa, I5
in making'one revolution. In the upwardy move
and |59c are closed, the duct |632' in one position
ment of the crank 42 the power of the motor
registers with the ports for the pipes IfI'a’ and I5a
is transmitted thro-ugh the device dla, head 4Ib
to supply steam to the cylinder |29: and in an
other position with the port-s for the pipes |50, 70 and device día' to the rocker 39 to move'the rod
8 downwardly and in the downward. movement
and I5œ’ to permit exhaust of the steam to and
of the crank 42, the power of the'motor 34 is
through the latter pipe, the portsA for the. pipes
transmittedthrough the device Ma, the engage-r
IIa', I5a and |59:' being closed during theremain
ment of` the spring 43 with the' head Mb servingk
ing rotary movement, of the valve'elements; As
shown in Fig.` 5; the: valve elements |619; |611’ ro,-> 7 51 to insure movement of` the rocker 39 therewith.
The duct Ißx is so arranged that in one position
and raising of the rod 8. In this form the fuel
is preferably delivered by a feed member such
of the invention will suggest themselves without
departing from the spirit and scope thereof. My
as shown in Figs. 2 and 3, operatively connected
to a rocker 25x, which is controlled by a collar
disclosures and the description herein are purely
The rod |8b' is slidably
mounted in brackets 44, provided on the casing
l, the upper end of the rod |812' being connected
to the lower end of a link |8c, which is connected
to and operated by the crank 42 of the motor 34,`
whereby feed of the fuel is controlled in co-or
dinated relation to the operation of the rod 8;
A magnetically operated brake (not shown) may
be connected in series in the circuit for each
motor 34, 34a, to insure stoppage thereof at the
end of each rotation upon cut-off of the current
in the circuit.
Fig. 5a illustrates a modified form of construc
tion for feeding 4fuel from the chute Ic to the
compartment 5. The upper side of the feed
member 22m is concave and its ,opposite walls
illustrative and are not to be in any sense limit
i619 fixed to a rod |813'.
are concentric to the outer end wall of the off
set Ib. The device 22a: is fixed to a rock shaft
2|:c provided with a lever 45, the outer end of
which is connected through a coiled spring 23x
What I claim is:
.1.. In apparatus of the class described,l the com»
bination with a gas producer, of an inverted cas~
ing the open end of which is related to the com»
bustion chamber of said producer, spaced upper
and lower annular walls carried by the side walls
of said casing, valves ñtting said walls and form»
for fuel, upper
and lower
for feeding
fuel from
said chute to said upper compartment, valve op
erating members slidably mounted in the top wall
of said casing for movement rectilineally axiallyJ
of said annular walls, one of said members con~
sísting of a sleeve extending through said wall
and connected to the valve fo-r said upper com
partment and the other member consisting of a
rod slidably ñtting said sleeve and extending
therethrough and connected to the valve for said
lower compartment, separate iiuid operated
to an adjustable anchor 23a', the opposite end 25 means for operating said members in one direc
of the lever 45 being connected to the rocker 25',
tion, said iiuid operated means consisting of a
cylinder, a rod slidably extending therethrough
which is operated in the manner set forth in
connection with the rocker 25' shown in Figs. 1
and connected at its inner end to the adjacent
valve operating member and provided with a pis
and 2. In this form of construction the feed
member 22:1: is positively operated in one direc 30 ton reciprocable in said cylinder, an abutment
tion by the rocker 25’ and in the opposite direc
carried by the outer end of said last mentioned
rod and a spring interposed between said abut
tion by the spring 23:1: which is strong enough
ment and said cylinder for moving said rod to
to insure return movement of the member 22x
operate the adjacent member in the opposite di
to its normal position.
Provision is made for stopping the motor 3| at a 35 rection, and means for supplying fluid to each of
said cylinders to control the operation of said
predetermined position corresponding to that
members in co-ordinated relation and relative to
angular cut-off position of the valve elements |617,
each other.
IGb’, wherein the steam supplied to the cylinders
2. An apparatus as claimed in claim 1 wherein
|2, |2œ, has been exhausted and the pistons there
in are in normal position. For this purpose I pro 40 the fluid supply means includes a valve mecha
nism for supplying ñuid to one cylinder and its
vide auxiliary cut-off means, indicated as en
exhaust therefrom during the period that the
tirety at 5l) (Fig. 1), for controlling the motor 3 I,
supply of the fluid to the other cylinder is cut off.
whereby it continues in operation, following the
opening of the valve 32' in the manner already
3. In apparatus of the class described, the oom
bination of a casing related to a combustion
set forth. Of the auxiliary cut-off means 50, 50a
indicates a separate circuit connected in the main ‘ chamber and having spaced upper and lower an
circuit 32, in shunt relation to the switch 32’ and
nular walls therein, valves fitting said walls and
forming therewith upper and lower compart
supplying current to the motor and connected to
ments, a chute for fuel, mechanism for feeding
suitable contacts in a switch box 50h, the circuit
Sila across these contacts being normally closed 50 fuel from said chute to said upper compartment,
by a spring operated movable contact 59h', which
a sleeve mounted in the top wall of said casing
when operated breaks the circuit 50a. The con
for movement rectilineally axially of said annular
tact 58h’ is normally disposed in the path of
walls and extending through said wall and con
movement of the throw provided on a cam 5|,
nected to the valve for said upper compartment, a
which is adjustably ñxed in any desired manner 55 rod slidably fitting said sleeve and extending
to the shaft |69, so that in each rotation ofthe
therethrough and connected to the valve for said
latter the circuit is opened and closed. So long
lower compartment, mechanism for moving said
as the main circuit 32 is closed by the switch 32’
sleeve and rod in one direction to move said valves
and the motor 3| is operating to effect operation
into engagement with said annular walls, and
of the mechanism 9, the opening and closing of 60 fluid operated means for operating said sleeve and
the separate circuit 50a in the manner above set
rod in the opposite direction in co-ordinated rela
forth will be ineffective, but following the opera
tion and relative to each other, said means in
tion of the switch 32' to open the main circuit 32,
cluding a valve mechanism for controlling the
supply of fluid to said fiuid operated means and
the motor 3| will continue to run until the cam
5| operates the contact 5|b' and breaks the cir 65 exhaust of the fluid therefrom, said controllingr
cuit 50a. From the foregoing descriptionïgit will „i means consisting of a motor, a source of electric
be observed A’that the auxiliary cut-ofi.’ means 50 'i j . current supply, main and separate circuits for said
prevents stoppage of the mechanism 9 at ',aïtime \ 'motor connected to electric supply source, means
when either piston in the cylinders | 2, |2x','§is`at' i w ‘for opening and closing said main circuit and
the upper end of its stroke or either valv'è‘4, 4a, 70 means controlled by said motor for opening said
is in open position.
.'I‘o those skilled in the art to which mylinven
tion relates many changes in construction and
widely differing embodiments and applications
- separate circuit in a predetermined position of
said fluid operated means.
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