US1914072A - Sound diffractor - Google Patents

Sound diffractor Download PDF

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Publication number
US1914072A
US1914072A US559585A US55958531A US1914072A US 1914072 A US1914072 A US 1914072A US 559585 A US559585 A US 559585A US 55958531 A US55958531 A US 55958531A US 1914072 A US1914072 A US 1914072A
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United States
Prior art keywords
sound
casing
diffractor
diaphragms
smaller
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Expired - Lifetime
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US559585A
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Boylston John
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Priority to US559585A priority Critical patent/US1914072A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02—Energy absorbers; Noise absorbers
    • F16L55/027—Throttle passages
    • F16L55/02709—Throttle passages in the form of perforated plates
    • F16L55/02718—Throttle passages in the form of perforated plates placed transversely

Definitions

  • This invention relates to improvements in sound difractors or sound-deadening or lessening mechanism.
  • My device is especially applicable in connection with devices from which gases are issuing. For example, in connection with reducing valves, the issuance of gases therefrom, such as steam, will cause a hissing noise.
  • gases such as steam
  • this may be considerably lessened or deadened by permitting gases to escape from the reducing valve directly through my sound difractor entering at the smaller end and leaving at the larger end.
  • My improved device is simple in construction and operation and also strong, rigid and effective.
  • Fig. 2 is a View in end elevation looking at the smaller end.
  • the device includes a tapered cylindrical or frusto-conical casing 10 provided with a bridging member 11 at the smaller end.
  • Numeral 12 indicates a centrally arranged supporting bolt in said casing with one end attached to the bridging member 11.
  • Numerals 13, 13 indicate a plurality of perforated diaphragms on said bolt.
  • N umerals 14, 14 indicate spacing members, in the form of spring washers, between the diaphragms and 15, 15, suitable washers adjacent said spacing members.
  • the holes in the diaphragms 13 are preferably tapered, as indicated by 16, with the smaller ends toward the smaller end of the casing 10.
  • the diameters of the diaphragms are respectively smaller toward the smaller end of the casing so that when the nut 12 on the bolt is tightened up, the diaphragms will all seat more or less in the casing 10.
  • a sound diifractor including; a frustoconical casing open at each end and provided at each end with an external perforated flange; a bridging member inside of the casing at the smaller end thereof; a centrally arranged supporting bolt in said casing with one end attached to said bridging member; a plurality of diaphragms on said bolt, said diaphragms being provided with tapered perforations, the smaller ends of said perforations being toward the smaller end of the casing; and spacing members between said diaphragms.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Valves (AREA)

Description

June 13, 1933. J. BoYLsToN SOUND DIFFRACTOR Filed Aug.. 26, 19151 Patented June 13, 1933 UNITED STATES JOHN BOYLSTON, OF CHICAGO, ILLINOIS SOUND DIFFRACTOR Application filed August 26, 1931.
This invention relates to improvements in sound difractors or sound-deadening or lessening mechanism.
My device is especially applicable in connection with devices from which gases are issuing. For example, in connection with reducing valves, the issuance of gases therefrom, such as steam, will cause a hissing noise. By the use of my improved device,
this may be considerably lessened or deadened by permitting gases to escape from the reducing valve directly through my sound difractor entering at the smaller end and leaving at the larger end.
My improved device is simple in construction and operation and also strong, rigid and effective.
Other features and advantages of my 1nvention will appear more fully as I proceed with my specification.
In that form of device embodying the features of my invention shown in the accompanying drawing- Figure 1 is a vertical sectional View; and
Fig. 2 is a View in end elevation looking at the smaller end. i
As shown in the drawing, the device includes a tapered cylindrical or frusto-conical casing 10 provided with a bridging member 11 at the smaller end.
Numeral 12 indicates a centrally arranged supporting bolt in said casing with one end attached to the bridging member 11. Numerals 13, 13 indicate a plurality of perforated diaphragms on said bolt. N umerals 14, 14 indicate spacing members, in the form of spring washers, between the diaphragms and 15, 15, suitable washers adjacent said spacing members. The holes in the diaphragms 13 are preferably tapered, as indicated by 16, with the smaller ends toward the smaller end of the casing 10. The diameters of the diaphragms are respectively smaller toward the smaller end of the casing so that when the nut 12 on the bolt is tightened up, the diaphragms will all seat more or less in the casing 10.
The ends of the casing 10 with perforated flanges 10a in mounting the device.
are provided and 10b to assist Serial N0. 559,585.
Vhile I have shown and described certain embodiments of my invention, it is to be understood that it is capable of many modifications. Changes, therefore, in the construction and arrangement may be made without departing from the spirit and scope of the invention as disclosed in the appended claims, in which it is my intention to claim all novelty inherent in my invention as broadly as permissible, in view of the prior art.
What- I regard as new, and desire to secure by Letters Patent, is:
A sound diifractor, including; a frustoconical casing open at each end and provided at each end with an external perforated flange; a bridging member inside of the casing at the smaller end thereof; a centrally arranged supporting bolt in said casing with one end attached to said bridging member; a plurality of diaphragms on said bolt, said diaphragms being provided with tapered perforations, the smaller ends of said perforations being toward the smaller end of the casing; and spacing members between said diaphragms.
In witness whereof, I have hereunto set my hand this 17th day of August, 1931.
JOHN BOYLSTON.
US559585A 1931-08-26 1931-08-26 Sound diffractor Expired - Lifetime US1914072A (en)

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US559585A US1914072A (en) 1931-08-26 1931-08-26 Sound diffractor

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Application Number Priority Date Filing Date Title
US559585A US1914072A (en) 1931-08-26 1931-08-26 Sound diffractor

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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2587192A (en) * 1948-07-06 1952-02-26 Meyer Herman Leakage tester for threaded pipe couplings
US2656004A (en) * 1947-04-29 1953-10-20 Rca Corp Multisection acoustic filter
US2684724A (en) * 1948-10-01 1954-07-27 Bell Telephone Labor Inc Sound wave refractor
DE1175501B (en) * 1960-09-30 1964-08-06 Siemens Ag Device for low-noise and low-vibration throttling of gaseous media
US3171507A (en) * 1960-06-30 1965-03-02 Struthers Scientific Int Corp Muffler for fired heater autoclave system
US3191630A (en) * 1963-04-11 1965-06-29 Cottrell Res Inc Gas flow control system for sub-sonic divergent diffusers
DE1261712B (en) * 1962-12-10 1968-02-22 Wiener Starkstromwerke Ges M B Throttle device for low-noise expansion of a gas flow in a pipeline
US3665965A (en) * 1970-05-26 1972-05-30 Masonellan International Inc Apparatus for reducing flowing fluid pressure with low noise generation
FR2343954A1 (en) * 1976-03-08 1977-10-07 Wurth Anciens Ets Paul PRESSURE EQUALIZATION VALVES IN A TANK OVEN
DE2635360A1 (en) * 1976-07-20 1978-01-26 Escher Wyss Gmbh DAMPING DEVICE FOR A LIQUID FLOW
US4113050A (en) * 1975-09-25 1978-09-12 British Gas Corporation Fluid-flow noise reduction systems
US20080121458A1 (en) * 2006-11-29 2008-05-29 Norris Gregory Sturgis Harmonic tone exhaust extension
US20080178583A1 (en) * 2007-01-12 2008-07-31 Yuguang Zhang Device with Trace Emission for Treatment of Exhaust Gas
US20140069737A1 (en) * 2012-09-10 2014-03-13 Dresser Inc. Noise attenuation device and fluid coupling comprised thereof
US20170205015A1 (en) * 2016-01-15 2017-07-20 Emerson Process Management Regulator Technologies, Inc. Noise attenuation apparatus for fluid devices
CN106979432A (en) * 2016-01-15 2017-07-25 艾默生过程管理调节技术公司 Sound attenuation for pressure regulator
US20170281880A1 (en) * 2014-06-20 2017-10-05 Medspray B.V. Aerosol or spray device, spray nozzle unit and method of manufacturing the same
WO2018125777A1 (en) * 2016-12-30 2018-07-05 Emerson Process Management Regulator Technologies, Inc. Apparatus for use in noise attenuators
US11562726B2 (en) * 2019-12-17 2023-01-24 Emerson Process Management Regulator Technologies, Inc. Plates and plate assemblies for noise attenuators and other devices and methods making the same

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2656004A (en) * 1947-04-29 1953-10-20 Rca Corp Multisection acoustic filter
US2587192A (en) * 1948-07-06 1952-02-26 Meyer Herman Leakage tester for threaded pipe couplings
US2684724A (en) * 1948-10-01 1954-07-27 Bell Telephone Labor Inc Sound wave refractor
US3171507A (en) * 1960-06-30 1965-03-02 Struthers Scientific Int Corp Muffler for fired heater autoclave system
DE1175501B (en) * 1960-09-30 1964-08-06 Siemens Ag Device for low-noise and low-vibration throttling of gaseous media
DE1261712B (en) * 1962-12-10 1968-02-22 Wiener Starkstromwerke Ges M B Throttle device for low-noise expansion of a gas flow in a pipeline
US3191630A (en) * 1963-04-11 1965-06-29 Cottrell Res Inc Gas flow control system for sub-sonic divergent diffusers
US3665965A (en) * 1970-05-26 1972-05-30 Masonellan International Inc Apparatus for reducing flowing fluid pressure with low noise generation
US4113050A (en) * 1975-09-25 1978-09-12 British Gas Corporation Fluid-flow noise reduction systems
FR2343954A1 (en) * 1976-03-08 1977-10-07 Wurth Anciens Ets Paul PRESSURE EQUALIZATION VALVES IN A TANK OVEN
DE2635360A1 (en) * 1976-07-20 1978-01-26 Escher Wyss Gmbh DAMPING DEVICE FOR A LIQUID FLOW
US20080121458A1 (en) * 2006-11-29 2008-05-29 Norris Gregory Sturgis Harmonic tone exhaust extension
US20080178583A1 (en) * 2007-01-12 2008-07-31 Yuguang Zhang Device with Trace Emission for Treatment of Exhaust Gas
US7857095B2 (en) * 2007-01-12 2010-12-28 Yuguang Zhang Device with trace emission for treatment of exhaust gas
US20140069737A1 (en) * 2012-09-10 2014-03-13 Dresser Inc. Noise attenuation device and fluid coupling comprised thereof
US20170281880A1 (en) * 2014-06-20 2017-10-05 Medspray B.V. Aerosol or spray device, spray nozzle unit and method of manufacturing the same
US11918732B2 (en) 2014-06-20 2024-03-05 Medspray B.V. Aerosol or spray device, spray nozzle unit and method of manufacturing the same
US10632265B2 (en) * 2014-06-20 2020-04-28 Medspray B.V. Aerosol or spray device, spray nozzle unit and method of manufacturing the same
CN106979432A (en) * 2016-01-15 2017-07-25 艾默生过程管理调节技术公司 Sound attenuation for pressure regulator
US9739408B2 (en) * 2016-01-15 2017-08-22 Emerson Process Management Regulator Technologies, Inc. Noise attenuation apparatus for fluid devices
US20170205015A1 (en) * 2016-01-15 2017-07-20 Emerson Process Management Regulator Technologies, Inc. Noise attenuation apparatus for fluid devices
WO2018125777A1 (en) * 2016-12-30 2018-07-05 Emerson Process Management Regulator Technologies, Inc. Apparatus for use in noise attenuators
CN108266590A (en) * 2016-12-30 2018-07-10 艾默生过程管理调节技术公司 For the noise muffler being used together with process control equipment
US10208880B2 (en) 2016-12-30 2019-02-19 Emerson Process Management Regulator Technologies, Inc. Noise attenuators for use with process control devices
US11156317B2 (en) 2016-12-30 2021-10-26 Emerson Process Management Regulator Technologies, Inc. Noise attenuators for use with process control devices
CN108266590B (en) * 2016-12-30 2021-12-31 艾默生过程管理调节技术公司 Noise attenuator for use with process control devices
US11562726B2 (en) * 2019-12-17 2023-01-24 Emerson Process Management Regulator Technologies, Inc. Plates and plate assemblies for noise attenuators and other devices and methods making the same

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