GB162163A - Improvements in sound box diaphragms - Google Patents

Improvements in sound box diaphragms

Info

Publication number
GB162163A
GB162163A GB892720A GB892720A GB162163A GB 162163 A GB162163 A GB 162163A GB 892720 A GB892720 A GB 892720A GB 892720 A GB892720 A GB 892720A GB 162163 A GB162163 A GB 162163A
Authority
GB
United Kingdom
Prior art keywords
diaphragms
sound box
discs
diaphragm
sound
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
GB892720A
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
Priority to GB892720A priority Critical patent/GB162163A/en
Publication of GB162163A publication Critical patent/GB162163A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Building Environments (AREA)

Abstract

162,163. Butow, P. E. March 26, 1920. Diaphragms, construction and shape of. The diaphragm of a sound-box is of spun aluminium and has a uniform thickness of about 0.002 in. The central portion, with a radius approximately 3/5 of the whole, may be formed with corrugations 14, 15, 16, and reinforced by either one or two discs 21, 22 of celluloid, spun aluminium, or other material having together the same thickness as the diaphragm. These discs are attached by flexible cement such as gum arabic, and reach as far as the second corrugation 15.
GB892720A 1920-03-26 1920-03-26 Improvements in sound box diaphragms Expired GB162163A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB892720A GB162163A (en) 1920-03-26 1920-03-26 Improvements in sound box diaphragms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB892720A GB162163A (en) 1920-03-26 1920-03-26 Improvements in sound box diaphragms

Publications (1)

Publication Number Publication Date
GB162163A true GB162163A (en) 1921-04-28

Family

ID=9861992

Family Applications (1)

Application Number Title Priority Date Filing Date
GB892720A Expired GB162163A (en) 1920-03-26 1920-03-26 Improvements in sound box diaphragms

Country Status (1)

Country Link
GB (1) GB162163A (en)

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