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File:Zemni Reproduktor Dle Ludvika Ocenaska.gif

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Captions

Captions

Schematic sketch (section) of a ground loudspeaker designed by Ludvík Očenášek (1872-1949)

Summary edit

Description
Čeština: Schematický náčrtek (řez) zemního reproduktoru podle návrhu Ludvíka Očenáška (1872–1949) určený pro ozvučení Strahovského stadionu pro X. Všesokolský slet 1938 v Praze. Očenášek jej navrhl v roce 1937 a patentově jej přihlásil 28 ledna 1938 na svoji dceru Miladu. (patentový spis číslo 77542; Zařízení na stejnoměrné zvukové sycení rozsáhlých ploch tzv. „hlasadly“).
  • Legenda:
  • C .... Cvičiště (zemský povrch)
  • P .... Pochozí poklop pro překrytí komůrky s akustickým měničem (reproduktorem)
  • R .... Reproduktor, vlastní akustický měnič (zdroj zvukových vln v komůrce)
  • Z .... Zvukovod (křivka znázorňuje průchod zvukových vln od „R“ k „D“)
  • D .... Difusor zvukových vln přicházejících zvukovodem
  • M .... Mřížka difusoru (prostupná pro usměrněné zvukové vlny), mechanicky odolná (pochozí)
  • O .... Odtokový otvor pro únik dešťové a kondenzované vody
  • K .... Kanalizační napojení (pro odvod vody)
English: Schematic sketch (section) of a ground loudspeaker designed by Ludvík Očenášek (1872-1949) for the sound system of Strahov Stadium for X. 1938 All-Sokol Meeting in Prague. Očenášek designed it in 1937 and filed a patent for it on 28 January 1938 in the name of his daughter Milada (patent file number 77542; Device for uniform sound saturation of large areas by so-called "loudspeakers").
Date years 1937 – 1938
Source Own work
Author
  • Mojmir Churavy
  • CZ: Prvotní autor výkresu Ludvík Očenášek (1872–1949). Dle fotokopie originálního výkresu pořídil zjednodušený náčrek Ing. Mojmír Churavý.
  • EN: The original author of the drawing was Ludvík Očenášek (1872-1949). According to a photocopy of the original drawing, a simplified sketch was made by Ing. Mojmír Churavý.
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Public domain

The author died in 1949, so this work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer.

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current13:12, 5 November 2022Thumbnail for version as of 13:12, 5 November 20226,018 × 3,000 (1.07 MB)Mojmir Churavy (talk | contribs)Uploaded own work with UploadWizard

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