GB393612A - Improvements in musical stringed instruments with electric relay transmission to a loud speaker - Google Patents
Improvements in musical stringed instruments with electric relay transmission to a loud speakerInfo
- Publication number
- GB393612A GB393612A GB33335/31A GB3333531A GB393612A GB 393612 A GB393612 A GB 393612A GB 33335/31 A GB33335/31 A GB 33335/31A GB 3333531 A GB3333531 A GB 3333531A GB 393612 A GB393612 A GB 393612A
- Authority
- GB
- United Kingdom
- Prior art keywords
- string
- damping means
- harmonics
- microphone
- tone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
- F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
- F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
- F42B12/44—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information of incendiary type
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H3/00—Instruments in which the tones are generated by electromechanical means
- G10H3/12—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument
- G10H3/14—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means
- G10H3/18—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means using a string, e.g. electric guitar
- G10H3/181—Details of pick-up assemblies
Abstract
393,612. Electrical musical instruments. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin.-(Assignees of Nernst, W.; 16, Neue Wilhelmstrasse, Berlin.) Dec. 1, 1931, No. 33335. Convention date, Dec. 1, 1930. [Class 88 (ii).] To enrich the harmonics, particularly at the centre of the compass of an instrument wherein the mechanical vibrations of strings are directly picked up and converted into electric oscillations which are conducted through an amplifier to a loud-speaker, the microphone (electromagnetic or electrostatic &c.) is placed close to the end of a string as at A, Fig. 1. Further harmonics of the 2n, 4n, 6n ..series may be added by securing the string to an elastic magnetic holder H and placing a second microphone, or the other pole B of a bi-polar microphone, close to the holder. Where the instrument has no soundboard, damping means (additional to the usual dampers 13, Fig. 2), may be provided to produce an effect on the tone character similar to that produced by a soundboard, which damps the harmonics and fundamental unequally. The damping means may consist of porous material 11 (felt, wadding, flannel, cork, &c.), applied at a suitable part of the string to produce the tone of a grand piano. Harmonium tone is restored by removing the damping means 11 pivoted at 10, by means of a lever 1, sliding wedge 2, pivoted wedge 6 and connection 8. The distances of the magnet from the end of the string, or from the string itself, or from the holder, may be adjustable. Single pole magnets are preferably used. To further weaken the fundamental, especially for lower notes, a self inductance may be placed in shunt to the magnet. Specification 354,301 is referred to. The Specification as open to inspection under Sect. 91 contains references to springs for adjusting the pressure of the damping means, and to photo-electric transmission means. These references do not appear in the Specification as. accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE393612X | 1930-12-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB393612A true GB393612A (en) | 1933-06-01 |
Family
ID=6392530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB33335/31A Expired GB393612A (en) | 1930-12-01 | 1931-12-01 | Improvements in musical stringed instruments with electric relay transmission to a loud speaker |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR393612A (en) |
| GB (1) | GB393612A (en) |
-
1908
- 1908-08-22 FR FR393612D patent/FR393612A/en not_active Expired
-
1931
- 1931-12-01 GB GB33335/31A patent/GB393612A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR393612A (en) | 1908-12-29 |
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