GB738225A - Improvements in or relating to the manufacture of articles comprising a frame and a flat metal plate secured thereto - Google Patents

Improvements in or relating to the manufacture of articles comprising a frame and a flat metal plate secured thereto

Info

Publication number
GB738225A
GB738225A GB20471/53A GB2047153A GB738225A GB 738225 A GB738225 A GB 738225A GB 20471/53 A GB20471/53 A GB 20471/53A GB 2047153 A GB2047153 A GB 2047153A GB 738225 A GB738225 A GB 738225A
Authority
GB
United Kingdom
Prior art keywords
steel
diaphragms
frames
articles
relating
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
GB20471/53A
Other languages
English (en)
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries Ltd
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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB738225A publication Critical patent/GB738225A/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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B26B19/384—Dry-shaver foils; Manufacture thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Laminated Bodies (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
GB20471/53A 1952-07-26 1953-07-23 Improvements in or relating to the manufacture of articles comprising a frame and a flat metal plate secured thereto Expired GB738225A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL738225X 1952-07-26

Publications (1)

Publication Number Publication Date
GB738225A true GB738225A (en) 1955-10-12

Family

ID=19820449

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20471/53A Expired GB738225A (en) 1952-07-26 1953-07-23 Improvements in or relating to the manufacture of articles comprising a frame and a flat metal plate secured thereto

Country Status (2)

Country Link
GB (1) GB738225A (enExample)
NL (2) NL91354C (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4793049A (en) * 1986-11-05 1988-12-27 Dr. Johannes Heidenhain Gmbh Method of manufacturing and embodiment of measure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4793049A (en) * 1986-11-05 1988-12-27 Dr. Johannes Heidenhain Gmbh Method of manufacturing and embodiment of measure
US4835830A (en) * 1986-11-05 1989-06-06 Johannes Heidenhain Gmbh Method of manufacturing an embodiment of measure

Also Published As

Publication number Publication date
NL171411B (nl)
NL91354C (enExample)

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