U.S. patent number 3,781,451 [Application Number 05/312,859] was granted by the patent office on 1973-12-25 for guitar, radio, microphone combination with self-contained energy source and amplifier.
This patent grant is currently assigned to Bruno Contri. Invention is credited to Frank D. Nolan.
United States Patent |
3,781,451 |
Nolan |
December 25, 1973 |
GUITAR, RADIO, MICROPHONE COMBINATION WITH SELF-CONTAINED ENERGY
SOURCE AND AMPLIFIER
Abstract
A musical instrument which has a guitar, radio and microphone
connected to a source of electrical energy and to a single
amplifier. The main body of the guitar is hollow having a battery
pack and radio mounted therein. A microphone is mounted to the main
body of the guitar and is connected to the battery pack and to the
amplifier of the radio. Means are mounted to the main body beneath
the guitar strings for producing audio electrical signals in
proportion to the sounds generated by the strings. The means are
connected to the radio amplifier. Switches are mounted to the main
body and are connected to the radio, microphone and means for
allowing the musician to selectively connect the microphone, guitar
and radio together for producing a combined sound through the radio
speaker or alternatively for operating only the microphone or the
microphone and guitar.
Inventors: |
Nolan; Frank D. (Clinton,
IN) |
Assignee: |
Bruno Contri (Clinton,
IN)
|
Family
ID: |
23213334 |
Appl.
No.: |
05/312,859 |
Filed: |
December 7, 1972 |
Current U.S.
Class: |
84/723; 84/267;
84/741; 984/303; 984/367 |
Current CPC
Class: |
G10H
1/0083 (20130101); G10H 3/18 (20130101); G10H
2240/211 (20130101) |
Current International
Class: |
G10H
1/00 (20060101); G10H 3/18 (20060101); G10H
3/00 (20060101); G10h 001/00 () |
Field of
Search: |
;84/1.01,1.16,267 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Wilkinson; Richard B.
Assistant Examiner: Weldon; U.
Claims
The invention claimed is:
1. A musical instrument comprising:
a guitar having a hollow main body forming a sound box with a long
neck attached thereto and strings with opposite ends attached to
said neck and said main body;
a battery holder mounted within said main body for receiving at
least one battery, said holder having electrical output terminals
contactable with said battery for providing electrical energy;
a radio receiving set mounted within said main body and connected
to said terminals for the operation of said set, said radio
receiving set including antenna means, an audio speaker and a first
amplifier;
a microphone mounted to said guitar and being electrically
connected to said terminals, said microphone having an output line
connected to said amplifier;
first means mounted to said main body beneath said strings being
electrically connected to said terminals and said amplifier and
being operable to produce audio electrical signals in proportion to
sounds generated by said strings; and,
switch means mounted to said guitar and connected between said
amplifier and said antenna means, between said amplifier and said
microphone and between said amplifier and said first means, said
switch means being operable to control electrical signal flow from
said antenna means, said microphone and said first means to said
amplifier.
2. The musical instrument of claim 1 and further comprising:
an on-off/volume switch mounted to said main body and connected
between said terminals and said radio receiving set, between said
terminals and said microphone and between said terminals and said
first means.
3. The musical instrument of claim 2 and further comprising:
a microphone volume switch mounted to said main body and connected
to said microphone and said switch means; and,
a guitar volume switch mounted to said main body and connected
between said first means and said switch means.
4. The musical instrument of claim 3 wherein:
said switch means includes a selector switch mounted to said main
body with at least three positions, said selector switch in one of
said positions connects said microphone to said amplifier and
disconnects said antenna means and said first means from said
amplifier, said selector switch in another position connects said
microphone and said first means to said amplifier and disconnects
said antenna means from said amplifier, said selector switch in
another position connects said microphone, said first means and
said antenna means to said amplifier.
5. The musical instrument of claim 4 wherein:
said selector switch is a three position/three deck switch.
6. The musical instrument of claim 4 wherein:
said radio receiving set includes an RF amplifier connected to said
antenna means, a mixer connected to said RF amplifier, an
intermediate frequency amplifier connected to said mixer and a
detector connected to said intermediate frequency amplifier and
said selector switch.
7. The musical instrument of claim 4 wherein:
said radio receiving set includes an RF amplifier connected to said
antenna means, a frequency converter connected to said RF
amplifier, an intermediate frequency amplifier connected to said
converter, a limiter connected to said converter for limiting
amplitude modulation and a discriminator connected to said limiter
and said selector switch.
8. The musical instrument of claim 6 wherein:
said hollow main body has a top panel and a bottom panel spaced
apart by an outer wall, said top panel has a hole extending across
said strings with said speaker mounted to said top panel and
positioned adjacent said hole;
said selector switch, said first means, said on-off/volume switch,
said microphone volume switch and said guitar volume switch are
mounted to said top panel with said microphone mounted to said
outer wall;
said bottom panel has a door hingedly mounted thereto which is
magnetically held in a closed position, said door when opened
allows access to said battery holder.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention is in the field of musical instruments.
2. Description of the Prior Art
In the U. S. Pat. No. 3,550,495 issued to Shotmeyer, there is
disclosed a musical instrument which combines a guitar and a tape
reproducer whereby a mixed sound can be reproduced. Likewise, in
the U. S. Pat. No. 3,296,916 issued to Palmer, there is disclosed a
musical instrument which includes a guitar in combination with a
microphone. Disclosed herein is a musical instrument which combines
a guitar with a radio and microphone.
Electrical guitars require various electrical cords which extend
from the guitar to the source of electrical energy such as a
standard outlet found on a wall. In addition, the guitar must be
connected by electrical cords to the amplifying system. As a
result, the movement of the musician is restricted and frequently,
the electrical cords become entangled in the musician's feet. As a
result, I have designed an electrical guitar which is
self-contained having a battery source of electrical energy mounted
within the guitar and having the amplifier also built into the
guitar. Thus, various electrical cords are not required thereby
allowing the musician to move freely as the instrument is played.
Simultaneously, I have mounted the microphone onto the guitar
thereby not requiring the musician to stand in a relatively fixed
position near the microphone found on the stage. In order to obtain
a unique sound, I have mounted a radio within the guitar. Thus, the
musician may sing and be accompanied by either music from the
radio, music from the guitar or a combined music from the radio and
guitar. A unique feature of my invention is utilization of the
amplifier of the radio to amplify both the sounds from the
microphone and guitar strings as well as the radio.
Other patents of interest are the U. S. Pat. No. 3,357,291 which is
issued to Carmichael which discloses a guitar having a
self-contained amplifier and the U. S. Pat. No. 1,739,680 issued to
La Joie which is a combination radio and phonograph.
SUMMARY OF THE INVENTION
One embodiment of the present invention is a musical instrument
comprising a guitar having a hollow main body forming a sound box
with a long neck attached thereto and strings with opposite ends
attached to the neck and the main body, a battery holder mounted
within the main body for receiving at least one battery, the holder
having electrical output terminals contactable with the battery for
providing electrical energy, a radio receiving set mounted within
the main body and connected to the terminals for the operation of
the set, the radio receiving set including antenna means, an audio
speaker and a first amplifier, a microphone mounted to the guitar
and being electrically connected to the terminals, the microphone
having an output line connected to the amplifier, first means
mounted to the main body beneath the strings being electrically
connected to the terminals and the amplifier and being operable to
produce audio electrical signals in proportion to sounds generated
by the strings, and switch means mounted to the guitar and
connected between the amplifier and the antenna means, between the
amplifier and the microphone and between the amplifier and the
first means, the switch means being operable to control electrical
signal flow from the antenna means, the microphone and the first
means to the amplifier.
It is an object of the present invention to provide a new and
improved musical instrument.
It is a further object of the present invention to provide a
musical instrument which combines the features of the guitar, radio
and microphone.
Yet another object of the present invention is to provide a guitar,
radio, microphone combination which utilizes a single amplifier for
amplifying the sounds from the guitar, radio and microphone.
In addition, it is an object of the present invention to provide a
guitar, radio, microphone combination which has a self-contained
source of electrical energy and a self-contained amplifier thereby
not requiring any external electrical cords.
Related objects and advantages of the present invention will be
apparent from the following description.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a side view of a musical instrument incorporating the
present invention.
FIG. 2 is a fragmentary back view of the musical instrument of FIG.
1.
FIG. 3 is the same view as FIG. 2 only enlarged and with the rear
door of the instrument opened showing the components within the
instrument.
FIG. 4 is a schematic representation of the electrical circuitry
for one embodiment of a musical instrument incorporating the
present invention.
FIG. 5 is a schematic representation of electrical circuitry for
another embodiment of a musical instrument incorporating the
present invention.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
For the purposes of promoting an understanding of the principles of
the invention, reference will now be made to the embodiments
illustrated in the drawings and specific language will be used to
describe the same. It will nevertheless be understood that no
limitation of the scope of the invention is thereby intended, such
alterations and further modifications in the illustrated device,
and such further applications of the principles of the invention as
illustrated therein being contemplated as would normally occur to
one skilled in the art to which the invention relates.
Referring now more particularly to FIG. 1, there is shown a musical
instrument 10 which is a guitar having a hollow main body 11
forming a sound box with a long neck 12 attached to main body 11.
Six strings 13 are strung on the guitar having their opposite ends
attached to the neck and the main body in the conventional manner.
The main body 11 has a top panel 14 and a bottom panel 15 spaced
apart and connected to an outer wall 16. Panel 14 is provided with
hole 17 which extends beneath strings 13. An audio speaker 18 is
mounted to the inside surface of panel 14 and is positioned
adjacent hole 17. Speaker 18 is connected to a radio mounted within
main body 11, to microphone 19 mounted to side wall 16 and to
device 20 which produces electrical signals in response to the
sounds generated by strings 13.
Th musical instrument utilizes the amplifier of the radio mounted
within the main body to amplify the sounds from the radio receiving
set, the sounds picked up by microphone 19 as well as the sounds
picked up by device 20. The radio receiving set may be of the AM
type with the schematic for the AM radio receiving set being shown
in FIG. 4 or may be of the FM type with the electrical schematic
for the FM type radio receiving set being shown in FIG. 5.
Referring now to FIG. 4, there is shown an antenna 21 connected to
tuner 22 which in turn is connected to RF amplifier 23. Amplifier
23 is provided with a local oscillator 24 with the output of the
amplifier being connected to mixer 25. This circuitry is well known
with the RF amplifier merely amplifying the station to which tuner
22 is positioned with the amplified signal having an audio
modulation passed onto mixer 25. Typically, local oscillator 24
produces a 455 KC signal which is then mixed with the incoming
signal and fed into the IF amplifier 26. Amplifier 26 provides a
signal to detector 27 which removes the 455 KC RF component from
the audio modulation component and normally passes this component
into the first audioamplifier 28. Instead of the normal
relationship between detector 27 and amplifier 28, the output of
detector 27 is fed through a three deck/three position switch 27'
which is also connected to microphone 19 and device 20. The output
of switch 27' is then connected to amplifier 28 which in turn is
connected to amplifier 29. Speaker 18 is connected to the output of
amplifier 29.
Contacts 1, 2 and 3 of the first deck of switch 27' are connected
together. The wiper A of the first deck is connected directly to
the input of amplifier 28. The fixed contacts of the first deck are
connected to the wiper B of the second deck which includes fixed
contacts 4, 5 and 6. Contacts 5 and 6 are connected together and to
the wiper arm C of the third deck which includes fixed contacts 7,
8 and 9. Contact 9 is connected to the output of detector 27.
Power supply 30 is connected via on-off/volume switch 31 to the
radio receiving set for providing electrical energy for the various
components. In addition, the power supply is connected to the input
power line of microphone 19 and the input power line of device 20.
Switch 31 is also the volume switch for the radio receiving set and
may be turned so as to control the flow of electrical energy to the
radio receiving set. Switches 32 and 33 are volume switches
respectively for microphone 19 and device 20 and are connected
between the output lines respectively of microphone 19 and device
20 and contacts 6 and 3 of switch 29. Wipers A, B and C are
mechanically linked. When the wipers are in the positions adjacent
contacts 1, 4 and 7, only microphone 19 will be connected to
amplifier 28. Likewise, when wipers A, B and C are positioned
adjacent contacts 2, 5 and 8, both microphone 19 and device 20 will
be connected to amplifier 28 whereas when the wipers are positioned
adjacent contacts 3, 6 and 9, the microphone 19, device 20 and
detector 27 will be connected to amplifier 28 thereby allowing the
sounds received by the radio receiving set, the sounds received by
the microphone and the sounds received by device 20 to be amplified
simultaneously via amplifier 28 and then to emit from speaker
18.
The circuitry shown in FIG. 5 is identical with respect to the
circuitry shown in FIG. 4 with the exception that the radio
receiving set is of the FM type and therefore, incorporates a
limiter 34 and discriminator 35. The antenna, tuner and RF
amplifier are connected via converter 36 to the IF amplifier 37
which in turn is connected to limiter 34. Limiter 34 is a
specialized RF amplifier and eliminates the noise effects from the
signal. Discriminator 35 changes the rate of frequency variation
into voltage variations. The output of discriminator 35 is
connected to switch 27' in a manner identical to the connection of
the output of detector 27. Likewise, the output of switch 27' is
connected to amplifier 29 in an identical manner as described for
the connection between switch 27' and amplifier 28. In addition,
the same connections are made between microphone 19 and device
20.
Selector switch 27' is therefore connected between the amplifier
and antenna means 21, between the amplifier and microphone 19 and
between the amplifier and device 20 with the selector switch being
operable to control the electrical signal flow from the antenna,
microphone and device 20 to amplifier 29. The selector switch is
mounted to top panel 14. Likewise, the on-off/volume switch 31 is
mounted to panel 14 along with microphone volume switch 32 and
guitar volume switch 33.
A door 38 is hingedly mounted to panel 15 (FIG. 3) in order to
allow access to the battery pack 39. Pack 39 has a plurality of
batteries removably mounted therein and connected to the output
terminals 40 and 41. On-off/volume switch 31 is connected between
terminals 40 and 41 and the radio receiving set which has its
components mounted to terminal board 42 secured to the inside
surface of panel 14. Likewise, the on-off/volume switch is
connected between terminals 40 and 41 and the microphone and
between terminals 40 and 41 and device 20. Terminals 40 and 41 are
contactable with the batteries secured within passage 39 for
providing the electrical energy for the various components.
Magnets 43 are mounted within main body 11 and are positioned
adjacent the openings closed by door 38 so as to contact magnets 44
secured to the inside surface of the door for holding the door in
the closed position. Microphone 19 is mounted to a flexible member
45 which is secured to wall 16. Member 45 may be bent to the
desired shape so as to position the microphone in an appropriate
position.
Many variations are contemplated and included in the present
invention. For example, additional speakers, such as four speakers,
may be mounted to the main body of the guitar in lieu of the single
speaker shown in the drawing. It will be obvious from the above
description that the present invention provides a new and improved
musical instrument. It will be further obvious from the above
description that the present invention provides a guitar radio
microphone combination which has a self-contained power supply and
amplifier thereby eliminating the necessity for external electrical
cords.
A variety of devices may be utilized to pick up the sounds
generated by the guitar strings. A popular version of device 20
incorporates a magnetic coil with sensors positioned immediately
below the guitar strings. The magnetic coil produces electrical
signals in proportion to the sounds generated by the strings.
While the invention has been illustrated and described in detail in
the drawings and foregoing description, the same is to be
considered as illustrative and not restrictive in character, it
being understood that only the preferred embodiments have been
shown and described and that all changes and modifications that
come within the spirit of the invention are desired to be
protected.
* * * * *