GB688358A - Improved adjustable mounting-attachments for loudspeakers, lamps and other apparatus - Google Patents

Improved adjustable mounting-attachments for loudspeakers, lamps and other apparatus

Info

Publication number
GB688358A
GB688358A GB11552/51A GB1155251A GB688358A GB 688358 A GB688358 A GB 688358A GB 11552/51 A GB11552/51 A GB 11552/51A GB 1155251 A GB1155251 A GB 1155251A GB 688358 A GB688358 A GB 688358A
Authority
GB
United Kingdom
Prior art keywords
hood
curved part
slot
bolt
adjustable mounting
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
GB11552/51A
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 GB688358A publication Critical patent/GB688358A/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/26—Pivoted arms

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

688,358. Brackets. PHILIPS ELECTRICAL INDUSTRIES, Ltd. May 17, 1951 [May 20, 1950], No. 11552/51. Class 52(v) [Also in Group XXXIX] An adjustable mounting attachment for a loud speaker 3 provided with a bellshaped hood 1, the outer surface of which is partly spherical, comprises a member 9 with a curved part 9<SP>1</SP> which engages with a curved part of the hood and which has a slot 13 to receive a radial bolt 7 attached to the curved part of the hood and held in adjusted position in the slot by nuts 15. 17. The curved part 9<SP>1</SP> is provided with raised edges 19 to prevent accidental removal. The position of the hood is adjustable, within a limited solid angle, by displacement of the bolt 7 within the slot and by pivoting of the hood about the bolt 7. The speaker is held in position against a shoulder 4 in the hood by discs 5 secured against the wall of the hood by eccentrically mounted screws 6.
GB11552/51A 1950-05-20 1951-05-17 Improved adjustable mounting-attachments for loudspeakers, lamps and other apparatus Expired GB688358A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL688358X 1950-05-20

Publications (1)

Publication Number Publication Date
GB688358A true GB688358A (en) 1953-03-04

Family

ID=19805732

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11552/51A Expired GB688358A (en) 1950-05-20 1951-05-17 Improved adjustable mounting-attachments for loudspeakers, lamps and other apparatus

Country Status (1)

Country Link
GB (1) GB688358A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2804931A (en) * 1953-09-18 1957-09-03 Ford Motor Co Vehicle speedometer mounting
US5746058A (en) * 1996-03-11 1998-05-05 Gits Manufacturing Company Adjustable actuator for a turbocharger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2804931A (en) * 1953-09-18 1957-09-03 Ford Motor Co Vehicle speedometer mounting
US5746058A (en) * 1996-03-11 1998-05-05 Gits Manufacturing Company Adjustable actuator for a turbocharger

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