GB590744A - Listening device particularly for the investigation of noises emanating from pipes through which materials flow and from machines - Google Patents

Listening device particularly for the investigation of noises emanating from pipes through which materials flow and from machines

Info

Publication number
GB590744A
GB590744A GB7932/43A GB793243A GB590744A GB 590744 A GB590744 A GB 590744A GB 7932/43 A GB7932/43 A GB 7932/43A GB 793243 A GB793243 A GB 793243A GB 590744 A GB590744 A GB 590744A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
stem
investigation
pipes
machines
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
GB7932/43A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB590744A publication Critical patent/GB590744A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/24—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations
    • G01M3/243—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations for pipes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B7/00—Instruments for auscultation
    • A61B7/02—Stethoscopes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid

Abstract

590,744. Listening devices. KELLENBERGER, K. March 29, 1945, No. 7932. Convention date, Nov. 23, 1943. [Class 81 (ii) ] A device for listening to noises emanating from machinery &c. of the type comprising a sound receiving contact member 7, a transmitting stem 1 and a diaphragm 4 mounted in a sound box 2 is characterized by means, such as a member 5, for rigidly connecting the diaphragm to the stem, and by means of supporting the edge portion of the diaphragm by the stem via sound insulation means; as shown, elastic packing 6 is employed. The diaphragm is mounted in the sound box between rubber rings.. One or more of the stem members may be curved or cranked, and provided with flexible joints. The member 7 may be shaped to fit the surface to be investigated. ,
GB7932/43A 1943-11-23 1945-03-29 Listening device particularly for the investigation of noises emanating from pipes through which materials flow and from machines Expired GB590744A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH244640T 1943-11-23

Publications (1)

Publication Number Publication Date
GB590744A true GB590744A (en) 1947-07-28

Family

ID=4464398

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7932/43A Expired GB590744A (en) 1943-11-23 1945-03-29 Listening device particularly for the investigation of noises emanating from pipes through which materials flow and from machines

Country Status (2)

Country Link
CH (1) CH244640A (en)
GB (1) GB590744A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2670806A (en) * 1950-09-06 1954-03-02 Sebastiani Peter Instrument for locating defects in machinery, pipe lines, and the like
US2753948A (en) * 1952-09-29 1956-07-10 Int Research & Dev Co Ltd Filtering cell prod for vibratory pick-up devices
CN112461359A (en) * 2020-12-17 2021-03-09 安徽江淮汽车集团股份有限公司 Mounting structure and noise testing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2670806A (en) * 1950-09-06 1954-03-02 Sebastiani Peter Instrument for locating defects in machinery, pipe lines, and the like
US2753948A (en) * 1952-09-29 1956-07-10 Int Research & Dev Co Ltd Filtering cell prod for vibratory pick-up devices
CN112461359A (en) * 2020-12-17 2021-03-09 安徽江淮汽车集团股份有限公司 Mounting structure and noise testing device

Also Published As

Publication number Publication date
CH244640A (en) 1946-09-30

Similar Documents

Publication Publication Date Title
GB300744A (en) Improvements relating to devices for the interconversion of electric oscillations and sound waves or equivalent mechanical vibrations
GB590744A (en) Listening device particularly for the investigation of noises emanating from pipes through which materials flow and from machines
GB756514A (en)
CH304081A (en) Device for the transmission of mechanical vibrations.
GB706836A (en) Device for cleaning milk conduits of machine milking plants
GB758884A (en) Improved means for the alternatively resilient or rigid supporting of reciprocating engines or other machine parts or appliances
GB578536A (en) Improvements in or relating to electromagnetic vibratory interrupters
GB548149A (en) Improvements in or relating to flexible couplings and mountings for machines and the like
GB633626A (en) Improvements in or relating to sealing means for relatively movable members
CA486461A (en) Elastic fluid power plants
FR902509A (en) Device for adjusting the diaphragms of stereoscopic devices
CH248532A (en) Electromechanical converter based on the electromagnetic principle for audio-frequency vibrations.
CA431096A (en) Electroacoustic transducer
GB825527A (en) Improvements in or relating to valves
GB728026A (en) Improvements relating to branch pipe connections to soil and waste pipes
CA413938A (en) Hose housing
CA413379A (en) Sound translating device
CA487162A (en) Appliance for grinding the contact points of contact-breakers
CA485418A (en) Vibration translating device
CA417110A (en) Amine hydroxyalkylation
AU1384352A (en) Acoustic duct for electroacoustic transducer
AU118427B2 (en) An improved flexible conduit
AU114568B2 (en) Improvements relating to devices for the transmission and reception of grouped electro-magnetic waves
CA411296A (en) Resilient mounting for engines, etc.
AU119049B2 (en) Acoustic stethoscope