U.S. patent number 3,723,046 [Application Number 05/192,114] was granted by the patent office on 1973-03-27 for simulated fire apparatus.
Invention is credited to Edward E. Calkins, Robert L. Eagaly, Dan W. Poling.
United States Patent |
3,723,046 |
Poling , et al. |
March 27, 1973 |
SIMULATED FIRE APPARATUS
Abstract
Simulated fire apparatus wherein a gas or electrically operated
flame portrayer is adjusted to vary the type of flame portrayed.
Such adjustments are coordinated with adjustments in sound effects
produced by a speaker.
Inventors: |
Poling; Dan W. (Lincoln City,
OR), Calkins; Edward E. (Rose Lodge, OR), Eagaly; Robert
L. (Toledo, OH) |
Family
ID: |
22708314 |
Appl.
No.: |
05/192,114 |
Filed: |
October 26, 1971 |
Current U.S.
Class: |
431/18; 472/64;
431/125; 472/65 |
Current CPC
Class: |
F24C
7/004 (20130101); F24C 3/006 (20130101); F24C
3/122 (20130101) |
Current International
Class: |
F24C
3/12 (20060101); F24C 3/00 (20060101); F23n () |
Field of
Search: |
;272/14,15 ;431/18,125
;40/106.51,106.52 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Dority, Jr.; Carroll B.
Claims
It is claimed and desired to secure by Letters Patent:
1. Simulated fire apparatus comprising
a fuel burner,
a supply of fuel and means for feeding fuel from the supply to the
burner for producing a visually observable flame at the burner,
varying means for varying the visually observable effect of a flame
produced at the burner,
sound producing means for simulating the sound of another type of
fire burning, and
connecting means interconnecting the varying means and the sound
producing means for coordinating the relationship
there-between.
2. The apparatus of claim 1, which further comprises timing means
operable to produce substantially simultaneous operation of said
varying means and sound producing means at random time
intervals.
3. The apparatus of claim 2, wherein said timing means comprises a
pair of actuating means, each of which has an actuating and a
nonactuating state, means operatively connecting said actuating
means to said varying and sound producing means whereby said
varying and sound producing means are actuated only when both of
said actuating means are in their actuating states simultaneously,
a first operator associated with one of said actuating means
operable intermittently to shift said one actuating means from its
nonactuating to its actuating state, and a second operator
associated with the other of said actuating means operable
intermittently to shift said other actuating means from its
nonactuating to its actuating state.
4. The apparatus of claim 1, wherein said varying means comprises
means for directing a stream of pressurized fluid against a portion
of a flame produced at such burner.
5. The apparatus of claim 1, wherein said varying means comprises a
plurality of nozzles, each adapted to direct a stream of
pressurized fluid against a different portion of a flame produced
at said burner, and supply means for intermittently supplying such
a stream of fluid to certain of said nozzles at random time
intervals.
6. Simulated fire apparatus comprising a visually observable flame
portrayer actuated by the supply of an operating medium
thereto,
a supply of such operating medium and means for feeding such to the
flame portrayer,
recording player means including at least two output channels and
means for introducing a different signal on each channel, with one
signal being electrically representative of one type of fire
burning sound and the other signal being electrically
representative of another fire burning sound,
speaker means for said channels and electrical circuit means for
each channel connecting the channel to the speaker means for
delivering the signal of the channel to the speaker means, and
attenuator means connected between the electrical circuit means for
at least one of said channels and the means for supplying operating
medium to the flame portrayer producing attenuation in the sound
produced by the speaker means coordinated with attenuation in the
supply of operating medium to the flame portrayer.
7. The apparatus of claim 6 which further comprises manually
adjusted control means for regulating the amplitude of the signal
in said one channel delivered to said speaker means, and wherein
said attenuator means includes means responsive to an adjustment of
said control means for changing the attenuation produced by the
attenuator means.
8. The apparatus of claim 6, wherein said attenuator means
comprises a signal attenuator producing changes in the signal
delivered to said speaker means, a supply attenuator for changing
the supply of operating medium fed to the flame producer, and a
power-operated actuator for the two attenuators for actuating the
two in a coordinated manner.
9. Simulated fire apparatus comprising
a gas burner operable to produce a gas flame,
a supply of such gas and means for feeding gas from the supply to
the burner,
recording player means including an output channel and means for
introducing a signal on such channel with such signal being
electrically representative of a type of fire burning sound,
a speaker and electrical circuit means connecting said channel to
the speaker, and
attenuator means connected between the electrical circuit means and
the means for feeding gas to the burner producing attenuation in
the sound produced by the speaker coordinated with attenuation of
the gas supplied to the burner.
10. The apparatus of claim 9, wherein said attenuator means
comprises a signal attenuator producing changes in the signal
delivered to the speaker, a valve for changing the supply of gas
fed to the burner, and a power-operated actuator for the signal
attenuator and valve constructed to actuate the two in a
coordinated manner.
Description
This invention relates to apparatus for producing a simulated fire,
and more particularly to such apparatus which includes means for
visually portraying a fire, which may be gas or electrically
operated, as well as means for producing fire sound effects.
The apparatus produces varied sound effects, and such are
coordinated with changes made in the type of flame portrayed, to
produce a very realistic simulation of an authenic fire.
One object of the invention, therefore, is to provide novel
apparatus for simulating a fire which includes means for
coordinating changes in fire sound effects with changes in the type
of flame simulated by the apparatus.
Another object is to provide such apparatus wherein fire sounds are
produced electrically.
Yet another object of the invention is to provide apparatus as
described which includes manually controlled means for controlling
the intensity of sound produced, and means responsive to this
manual control producing a change in the manner that the flame is
portrayed.
These and other objects and advantages will become more fully
apparent from the following description, when such is read in
conjunction with the accompanying drawings wherein:
FIG. 1 is a schematic illustration of apparatus according to one
embodiment of the invention;
FIG. 2 is a view of a modified version of apparatus according to
the invention with a portion of the apparatus illustrated in cross
section;
FIG. 3 is an enlarged view, taken generally along the line 3--3 in
FIG. 2; and
FIG. 4 is a simplified schematic diagram of an electrical circuit
in the invention as illustrated in FIG. 2.
The apparatus illustrated in FIG. 1 is one in which gas fuel is
relied upon to produce the flame. As indicated earlier, the
invention contemplated herein is also usable in conjunction with
electrically operated means for simulating a flame, with such flame
simulating means being well known in the art. With an electric
system, some modification of the apparatus would be required, as
will be hereinafter described.
Considering now in more particular the details of the invention as
illustrated in the figure, a simulated log is shown at 10 of the
type that might be placed in a fire. The log, as would be
conventional, is made of nonflamable material. Associated with the
log, and indicated schematically at 12 and 14, are a pair of gas
burners, such having conventional burner jets through which gas is
ejected to be ignited on leaving the jets.
The log and the burner jets are referred to herein broadly as a
visual flame portrayer, such being actuated by gas fed to the log,
such gas or fuel being referred to broadly as an operating medium
fed to the portrayer. In the case of an electrical system, the
operating medium comprises electrical current fed to the flame
portrayer.
Indicated generally at 16 is a gas supply. Gas is fed to the log
from the gas supply through a conduit 18, what is referred to as a
gas regulating valve 20, which is adjustable to vary the rate of
gas flow downstream of the valve, a conduit 22, a flow divider 24,
and conduits 26, 28.
Conduit 28 extends directly from the flow divider to burner jet 14.
Thus, for a given setting of the valve 20 the flame produced in jet
14 remains of substantially uniform size and intensity. Conduit 26
connects with burner jet 12 through a valve 30, also referred to
herein as a flow attenuator, since on adjustment of the valve to
close it the valve cuts down the flow to the burner jet. As will
become more fully apparent, adjustment of the valve 30 is relied
upon to produce periodically a change in the size and intensity of
the flame emanating from burner jet 12.
As discussed briefly, with the apparatus of the instant invention
sound effects are produced which accompany the visual effect of the
burning log.
Considering now in more detail the means provided for providing
sound effects, shown generally at 36 is what I have referred to
broadly as a player unit, which in the particular embodiment
illustrated includes two output channels 38 and 40. Unit 36 is
effective to produce in each an electrical signal which is
electrically representative of a sound effect characterizing a
burning fire, so as to produce such a sound when fed to an
amplifier and speaker which converts the same to audio sound. By
providing two channels, it is possible to produce in one a signal
representative of a continuous roaring sound, such as characterizes
a fire, and in the other a signal representative of a snapping or
popping sound, also characterizing a log fire.
The player unit may take any of a number of forms, as for instance
the usual tape cassette, with the tape having two tracks thereon.
The cassette which houses the continuous tape as well as the drive
unit therefore is indicated at 42. Also part of the player unit are
the two read heads for the two tracks on the tape, indicated at 44
and 46, respectively, producing in channels 38 and 40 the two types
of signals representing electrically two types of fire burning
sounds.
Considering specifically output channel 38, shown at 48 is an
amplifier serving to amplify the signal. Such is fed through a
volume control 50 to a speaker shown at 52.
Output channel 40 is electrically connected to amplifier 54 which
amplifies the signal in this channel. The signal then is fed
through a volume control 56 adjustable to change the volume of the
signal, and thence through what is referred to as a signal
attenuator 58 to a speaker 60.
Volume control 50 and volume control 56 are ganged to a control
knob 62, also referred to as a manually adjusted control. On
turning of the knob, therefore, both are adjusted simultaneously to
produce an increase or decrease in the volume of the signal being
handled. In the case of the signal in output channel 38, for a
given setting of the knob the volume of the signal feed to the
speaker 52 remains constant. In connection with channel 40, the
signal fed to speaker 60 is additionally effected by adjustments
made in signal attenuator 58.
Shown at 66 is a variable speed motor driving a drum or actuator
68. In the particular form of the invention illustrated, such may
have cams or other means 70 on the periphery thereof moved in
circular courses on rotation of the drum. The motor and drum
constitute means in the organization for producing periodically
adjustments in signal attenuator 58 as well as in a flow
attenuating control 72. Such may be done as through sensors or
fingers, such as are shown at 74, 76, which are arranged to be in
the path of the cams disposed on such drum thereby to be shifted
into position on moving over a cam to effect an adjustment in the
signal attenuator and flow attenuating control, respectively.
Signal attenuator 58 may be merely a switch which is opened and
closed with movement of the sensor 74 periodically to cut off and
then restore the signal to speaker 60. Alternatively, the
attenuator may be of a construction wherein the signal is not
completely cut off, but instead periodically sharply reduced in
volume on the sensor riding over one of such cams.
With flow attenuator or valve 30 being a solenoid operated valve,
flow attenuating control 72 may take the form of a switching device
actuatable periodically to open and close the valve in response to
cam movement relative to sensor 76.
Also illustrated in the figure is a motor speed control 78. This is
connected to the variable speed motor whereby adjustments in the
speed control produce a change in the speed at which the motor
runs. The motor speed control is also ganged to control knob 62.
The connection is such that with the knob turned to increase the
volume in controls 56 and 50, motor speed increases to increase the
activity of the signal attenuator 58 and flow attenuating control
72.
Also to be noted in the drawing is that the gas regulating valve 20
may be ganged to the knob so that with adjustment of the knob to
increase the volume the valve is opened up a greater extent. This
is reflected in a more brilliant flame in burner jet 12 and burner
jet 14.
From the above it will be seen that signal attenuating means, in
the form of the actuating drum and attenuator 58 and attenuating
control 72, is connected between the circuit supplying the speaker
60 with the signal and the means, more specifically conduit 28,
supplying the gas or operating medium to the log 10. It should also
be apparent that with the apparatus of the invention, attenuation
in the flow of fuel to the log is coordinated with attenuation of
the signal supplied to speaker 60.
In an installation where an electrically operated means is provided
for simulating the flame, means such as a rheostat would be
substituted for the valve 30, for the purpose of varying the
current supplied to the electrically operated device from a source
of electric current. Suitable electronic components would be
substituted for the flow divider and flow attenuator, to obtain the
desired control in the flow of electric power to the log
simulator.
Referring now specifically to FIG. 2, at 90 is indicated generally
a modified version of simulated fire apparatus according to the
invention. Apparatus 90 includes a gas burner 92 which is
connected, through a pipe 94, to a gas supply indicated generally
at 96. Gas fed to the burner is ejected through holes 100 disposed
in a pair of rows on top the burner. Ignition of such gas produces
a visually observable flame above the burner which may be seen
above, and may appear to be burning from, an artificial log 102
adjacent the burner, when viewed from the opposite side of the
log.
At 106 is indicated generally apparatus operable to produce a
random popping noise, such as occurs in natural wood fires, and for
varying the visually observable effect of the flame at the burner
with such coordinated with the random popping sounds.
Apparatus 106 includes a motor 108 having an output shaft rotatable
about a substantially horizontal axis. The right end of shaft 110
as viewed in FIG. 2, is mounted for rotation in a stationary
support 112.
A hollow cylindrical manifold 114 is secured to the end of the
shaft for rotation therewith. A plurality of holes 116 disposed in
a spiral pattern open through the sides of the manifold. The right
end of manifold 114 is journaled for rotation in a stationary
support 118.
A port 119 opens through the right end of manifold 114 and
communicates with the interior of an expandible-compressible
bellows 120. The left end of bellows 120, as viewed in FIG. 2, is
secured against movement on support 118. The right end of the
bellows is closed off and secured to the left end of an elongated
plunger 122. Plunger 122 is mounted for sliding movement in the
direction of its longitudinal axis, (to the left and right as seen
in FIG. 2) in a stationary support member 124.
Plunger 122 projects to the right from support 124 and through the
coil of a solenoid 130. When the coil is deenergized, plunger 122
is in the position shown in FIG. 2, which is a position shifted to
the right, with bellows 120 expanded. Energizing of the solenoid
drives the plunger to the left with head 126 of the plunger
striking a sounding member 128 and producing a popping sound. As
the plunger is driven to the left by the solenoid, bellows 120 is
compressed, forcing compressed air into manifold 114.
An elongated, hollow, cylindrical tube 132, having an internal
diameter slightly greater than the outer diameter of manifold 114
surrounds manifold 114 and is secured at its ends in supports 112,
118. A series of openings 134 are disposed in-line along the top of
the tube. Openings 134 communicate with the interior of tube 132
and each has an end of an elongated conduit 136 connected thereto.
Each of conduits 136, in turn, has an inverted J-shaped nozzle 138
connected to its other end. Each of nozzles 138 is secured in a
position whereby it may direct a flow of air form its associated
conduit 136 onto one of holes 100 in burner 92, as will be
described in greater detail below.
Holes 116 distributed in a spiral pattern about manifold 114 are so
positioned that as the manifold is turned by motor 108 each of
holes 116 will successively register with an associated one of
holes 134 in tube 132.
Air forced into manifold 114 by the compression of bellows 120
escapes through the hole 116 in manifold 114 which is then adjacent
one of holes 134 and is routed through the conduit 136 associated
with such hole, whereby it is blown against the flame emanating
from one of holes 100 in burner 92. This air blowing against the
flame from one of holes 100 either momentarily extinguishes such
flame, or diverts it substantially whereby it alters the visual
effect of the flame from the burner. This occurs in coordinated
relationship with the popping sound produced by the head 126 of the
plunger striking sounding member 128.
The operation of solenoid 130 is controlled by a random timing
device indicated generally at 144 (see FIGS. 2 and 3). Device 144
includes a roller bearing assembly 146 which has a stationary outer
ring 148, a rotatable inner ring 150, and a retainer ring 152
between rings 148, 150. Inner ring 148 is secured to shaft 110 for
rotation therewith. Retainer ring 152 is rotatable also and
maintains a plurality of ball bearings 154 aligned in the races
provided in inner and outer rings 148, 150, respectively.
A plurality of pins 158 are secured to one side of inner ring 150
and project outwardly therefrom in a direction paralleling shaft
110. Pins 158 are all equidistant from the longitudinal center line
of shaft 110 (as best seen in FIG. 3) and are randomly spaced
thereabout. A plurality of pins 160 and 162 are secured to and
project outwardly from retainer ring 152 in a direction paralleling
pins 158. Pins 160, 162 are equidistant from the center line of
shaft 110 and are randomly spaced thereabout on the retainer ring.
Pin 162 has a head which is considerably larger than the heads of
pins 160. Ring 150 and its associated pins are referred to herein
as an operator, and ring 152 and its associated pins are referred
to as another operator.
As shaft 110 is rotated in a counterclockwise direction as viewed
in FIG. 3, inner ring 150 and retainer ring 152 are rotated in a
counterclockwise direction at different rotational speeds. Ring
150, being secured to shaft 110, will rotate at the speed of the
shaft. The rotational speed of retainer ring 152 is governed by the
rotational speed of bearings 154 in the races and any slippage
which may occur between the bearings and rings.
Referring again to FIG. 2, a switch 164, also referred to herein as
an actuator, is suspended adjacent bearing assembly 146. Switch 164
has a stationary contact 164a and another contact 164b which is
shiftable toward and away from contact 164a and is spring biased to
a normally spaced position, as shown in FIG. 2. Contacts 164a, 164b
are spaced from the longitudinal axis of shaft 110 the same
distance as pins 158. As a pin 158 is rotated into a position
adjacent switch 164 it will momentarily close contacts 164a, 164b,
and after it passes, it allows the contacts to open. When the
contacts are closed, the switch may be considered to be in an
actuating state and when they are opened the switch may be
considered to be in a non-actuating state.
A similar switch 166, shown in broken outline in FIG. 3, and also
referred to herein as an actuator, is suspended adjacent switch 164
and is in a position whereby its contacts are closed momentarily as
one of pins 160 or 162 pass thereby with rotation of retainer ring
152. It should be noted that since pin 162 has a larger head than
pins 158, 160, it will close the contacts of switch 166 for a
longer period of time.
Switches 164, 166 are connected to solenoid 130 through an
electrical circuit, shown diagramatically in FIG. 4. As is seen in
FIG. 4, the left sides of switches 164, 166 are connected to a
suitable source of positive voltage. The right sides of the
switches are connected through separate conductors to the upper and
lower input terminals A and B, respectively, of a conventional AND
circuit 170. AND circuit 170 is so constructed that when a signal
is present at both of its input terminals a signal will be produced
at its output terminal C. Should the signal cease at either one or
both of its input terminals, the signal at output terminal C
ceases.
The output of AND circuit 170 is connected to the input terminal of
a solenoid control circuit 172. A signal presented at the input
terminal of control circuit 172 energizes solenoid 130. When a
signal ceases to be presented at the input of control circuit 172,
solenoid 130 is deenergized.
Explaining the operation of timing device 144, rotation of shaft
110 causes inner ring 150 and retainer ring 152 of the roller
bearing assembly 146 to rotate at different speeds. As the rings
rotate, pins 158, 160, 162 periodically close switches 164, 166. At
random intervals switches 164, 166 will be closed simultaneously
producing simultaneous signals at input terminals A, B of AND
circuit 170 which operates, through solenoid control circuit 172,
to energize solenoid 130. As has been explained previously, when
solenoid 130 is energized plunger 122 is driven to the left. Head
126 strikes sounding member 128 to produce a popping noise and
bellows 120 is compressed forcing a stream of pressurized air
through one of conduits 136 and against one of holes 100 in burner
92 to deflect the flame emanating therefrom.
It will be noted that at least one pair of pins 158 are closely
spaced (that pair immediately below switch 164 as seen in FIG. 3).
Should pin 162, having an enlarged head, and such closely spaced
pins 158 reach their respective switches 166, 164 at the same time,
a double popping noise and jet of flame-varying air will be
produced. Explaining further, the enlarged head of pin 162 is
capable of holding switch 166 closed a sufficient time for such
pair of closely spaced pins 158 to produce successive closing,
opening, and then reclosing of switch 164.
The apparatus described thus is operable to vary the visually
observable effect of a flame produced by the burner and at the same
time produce a popping noise which simulates the sound of a natural
wood fire. Through this apparatus the means for varying the flame
and for producing the popping flame are interconnected whereby the
visual and audible effects are coordinated.
It should be obvious that changes and variations are possible
without departing from the spirit of the instant invention.
* * * * *