US1907996A - Sound locating apparatus - Google Patents

Sound locating apparatus Download PDF

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Publication number
US1907996A
US1907996A US572545A US57254531A US1907996A US 1907996 A US1907996 A US 1907996A US 572545 A US572545 A US 572545A US 57254531 A US57254531 A US 57254531A US 1907996 A US1907996 A US 1907996A
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sound
horns
support
locating apparatus
arm
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US572545A
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James C Karnes
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/72—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using ultrasonic, sonic or infrasonic waves

Definitions

  • This invention relates to a sound locating apparatus of the type operating according to a system of binauralcomparison in which the apparatus is directed at the source of sound and the listener reduces the phase difierence to zero.
  • apparatus of this character includes two pairs of horns arranged on intersecting base lines to respectively afford lateral and vertical impressions of direction in azimuth and in elevation.
  • the purpose of the present invention is to efi'ect a reduction in the size and weight of the apparatus by employing only one pair of horns arranged on an oblique base line whereby lateral and vertical separation is provided respectively for the azimuth and elevation listener.
  • Fig. 1 is a view in front elevation, parts in section showing the improved apparatus pointed at zero elevation.
  • Fig. 2 is a view in side elevation thereof.
  • Fig. 3 is a schematic view showing the grouping of the horns.
  • Fig. 4 is a view in front elevation of a modified apparatus. Referring to the drawing by characters of reference.
  • the mount consists of a base 5 on which is supported a top carriage 6 that is rotated in azimuth by means of gearing 7
  • the top carriage is formed with a pair of spaced arms 88 adapted to trunnion a horizontally disposed support 9 that is rotated about its axis by means of gearing 10.
  • the support 9 extends beyond the arms 8 and carries a pair of crank arms on its extremities.
  • One of the crank arms 11 carries an element of the gearing 10 and is fixed in one position on the support by means of the p1n 12.
  • the other crank arm 18 is securable to the support by means of a pin 14 in two positions of adjustment, the normal position being at 180 degrees from the crank arm 11 and the other position which is employed in traveling, corresponding to the arm 11.
  • a pair of horns A and B are respectively mounted on the crank arms 11 and 13 and are in parallel relation perpendicular to the crank arms.
  • Flexible sound conducting tubes a and 6 leading from the horns A and B are conducted through the support 9 and issue from a central aperture 96.
  • the adjoining ends of the tubes are divided so that the branches of one tube may be paired with the branches of the other tube.
  • the pairs are attached to head sets 1515 either one of which may be used by the azimuth listener or by the elevation listener.
  • the horns as arranged are positioned at the ends of a base lme that is oblique to the axes of rotation, and the vertical distance between planes of the horns is equal to the horizontal distance between planes of the horns.
  • the horns are mounted on the ends of an arm 16 disposed obliquely to the support 9a and attachable tothe center thereof.
  • the obliquity of the arm may readily be varied to alter the horizontal and vertlcal distances between the horns.
  • a mount In a sound apparatus, a mount, a support trunnioned on the mount, a crank arm on each end of the support, said arms being normally 180 degrees apart, a horn on each arm, and a flexible sound conducting tube leading from each horn and having a divided end, the divisions of one tube being paired with the divisions of the other tube.
  • a support movable about a horizontal and a vertical axis, spaced horns carried by the support on a line oblique to the axes of movement of the support.
  • a pair of sound receivers mounted for movement in azimuth and elevation and spaced equally in two planes and means for coupling the sound receivers to provide two sound receiver sets.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Description

May 9, 1933. 1 c; KARNEs 1,907,996
SOUND LOCATING APPARATUS Filed Nov. 2, 1931 INVENTOR. James llKarnes A TTORNEY Patented May 9, 1933 enses JAMES C. KARNES, OF BUFFALO, YORK SOUND LOCATING APPARATUS Application filed November 2, 1931.
Serial No. 572,545.
(GRANTED UNDER THE ACT OF MARCH 3, 1883, AS AMENDED APRIL 30, 1928; 370 0. G. 757) The invention described herein may be manufactured and used by or for the Government for governmental purposes, without the payment to me of any royalty thereon.
This invention relates to a sound locating apparatus of the type operating according to a system of binauralcomparison in which the apparatus is directed at the source of sound and the listener reduces the phase difierence to zero.
In general, apparatus of this character includes two pairs of horns arranged on intersecting base lines to respectively afford lateral and vertical impressions of direction in azimuth and in elevation.
The purpose of the present invention is to efi'ect a reduction in the size and weight of the apparatus by employing only one pair of horns arranged on an oblique base line whereby lateral and vertical separation is provided respectively for the azimuth and elevation listener.
To these and other ends, the invention consists in the construction, arrangement and combination of elements described hereinafter and pointed out in the claims forming a part of this specification.
-A practical embodiment of the invention is illustrated in the accompanying drawing, wherein:
Fig. 1 is a view in front elevation, parts in section showing the improved apparatus pointed at zero elevation.
Fig. 2 is a view in side elevation thereof.
Fig. 3 is a schematic view showing the grouping of the horns.
Fig. 4 is a view in front elevation of a modified apparatus. Referring to the drawing by characters of reference.
The mount consists of a base 5 on which is supported a top carriage 6 that is rotated in azimuth by means of gearing 7 The top carriage is formed with a pair of spaced arms 88 adapted to trunnion a horizontally disposed support 9 that is rotated about its axis by means of gearing 10.
The support 9 extends beyond the arms 8 and carries a pair of crank arms on its extremities. One of the crank arms 11 carries an element of the gearing 10 and is fixed in one position on the support by means of the p1n 12. The other crank arm 18 is securable to the support by means of a pin 14 in two positions of adjustment, the normal position being at 180 degrees from the crank arm 11 and the other position which is employed in traveling, corresponding to the arm 11.
A pair of horns A and B are respectively mounted on the crank arms 11 and 13 and are in parallel relation perpendicular to the crank arms. Flexible sound conducting tubes a and 6 leading from the horns A and B are conducted through the support 9 and issue from a central aperture 96. The adjoining ends of the tubes are divided so that the branches of one tube may be paired with the branches of the other tube. The pairs are attached to head sets 1515 either one of which may be used by the azimuth listener or by the elevation listener. The horns as arranged are positioned at the ends of a base lme that is oblique to the axes of rotation, and the vertical distance between planes of the horns is equal to the horizontal distance between planes of the horns.
In the modification. shown in Fig. 4, the horns are mounted on the ends of an arm 16 disposed obliquely to the support 9a and attachable tothe center thereof. In this arrangement the obliquity of the arm may readily be varied to alter the horizontal and vertlcal distances between the horns.
I claim:
1. In a sound apparatus, a mount, a support trunnioned on the mount, a crank arm on each end of the support, said arms being normally 180 degrees apart, a horn on each arm, and a flexible sound conducting tube leading from each horn and having a divided end, the divisions of one tube being paired with the divisions of the other tube.
2. In a sound apparatus, a mount, a sup=- port trunnioned on the mount, a crank arm on each end of the support, said arms being normally degrees apart, a horn on each arm, and means for coupling the horns to provide two sound recelver sets.
3. In a sound apparatus, a support movable about a horizontal and a vertical axis, spaced horns carried by the support on a line oblique to the axes of movement of the support.
4:. In a sound apparatus, a pair of sound receivers mounted for movement in azimuth and elevation and spaced equally in two planes and means for coupling the sound receivers to provide two sound receiver sets.
JAMES C. KARNES.
US572545A 1931-11-02 1931-11-02 Sound locating apparatus Expired - Lifetime US1907996A (en)

Priority Applications (1)

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US572545A US1907996A (en) 1931-11-02 1931-11-02 Sound locating apparatus

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Application Number Priority Date Filing Date Title
US572545A US1907996A (en) 1931-11-02 1931-11-02 Sound locating apparatus

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