GB1326548A - Sound generating apparatus - Google Patents

Sound generating apparatus

Info

Publication number
GB1326548A
GB1326548A GB517473A GB517470A GB1326548A GB 1326548 A GB1326548 A GB 1326548A GB 517473 A GB517473 A GB 517473A GB 517470 A GB517470 A GB 517470A GB 1326548 A GB1326548 A GB 1326548A
Authority
GB
United Kingdom
Prior art keywords
column
tube
longitudinal
sept
vibrations
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
Application number
GB517473A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Braxton Corp
Original Assignee
Braxton Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Braxton Corp filed Critical Braxton Corp
Publication of GB1326548A publication Critical patent/GB1326548A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/04—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with electromagnetism
    • B06B1/045—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with electromagnetism using vibrating magnet, armature or coil system

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Jigging Conveyors (AREA)
  • Tyre Moulding (AREA)

Abstract

1326548 Vibrators BRAXTON CORP 2 Sept 1970 [2 Sept 1969] 5174/73 Divided out of 1326547 Heading G5J [Also in Divisions F2 and H2] Sound producing apparatus comprises an elongated elastic column constrained against transverse motion, an electromagnetic motor providing periodic longitudinal forces on an end of the column at the resonant frequency of the column, a system controlling the amplitude of the longitudinal motion of the column and an extended surface transverse to an end of the column. The column 20 comprises two tubes 42, 72 joined by a coupling 52, Fig. 3 (not shown) (see Division F2). At the top of a tube 72 is a cone 80 connected to an A.C. energized coil 16 which co-operates with a D.C. energized electromagnet 14 to form an electromagnetic motor 12, Fig. 2 (not shown) (see Division H2). At the bottom of tube 20, an assembly of truncated cones 66, 90 which forms the subject of the Specification 1,326,547, couples the vibrations of the tube to a diaphragm 24 which feeds the sound into a chamber 36 where it may be used to promote coalition of suspended particles. The apparatus is symmetrical about the axis of column 20 the mass of the vibrating part is symmetrically arranged around the centre of coupling 52 where the column is supported. The frequency of A.C. applied to the armature 16 is matched to the longitudinal resonant frequency of the column 20 with a node at the centre and an accelerometer is provided to reduce the current when the design limit of the vibrations is reached.
GB517473A 1969-09-02 1970-09-02 Sound generating apparatus Expired GB1326548A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85437369A 1969-09-02 1969-09-02

Publications (1)

Publication Number Publication Date
GB1326548A true GB1326548A (en) 1973-08-15

Family

ID=25318512

Family Applications (1)

Application Number Title Priority Date Filing Date
GB517473A Expired GB1326548A (en) 1969-09-02 1970-09-02 Sound generating apparatus

Country Status (2)

Country Link
US (1) US3708033A (en)
GB (1) GB1326548A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1602117A (en) * 1977-10-04 1981-11-04 Seismograph Service Englang Lt Vibration generators particularly for seismic exploration
WO1980000950A1 (en) * 1978-11-01 1980-05-15 I Kauffman Single line,dual station indexing packaging machine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123728A (en) * 1964-03-03 Vibratory apparatus with variable frequency and amplitude
US3070790A (en) * 1959-12-30 1962-12-25 Wilfred Roth Acoustic transducers
US3249913A (en) * 1963-05-08 1966-05-03 Ca Nat Research Council Ultrasonic underwater sound generator
US3311872A (en) * 1963-08-29 1967-03-28 Jr Daniel E Andrews Transducer face-velocity control system

Also Published As

Publication number Publication date
US3708033A (en) 1973-01-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee