DE44386C - Blackboard cleaner - Google Patents

Blackboard cleaner

Info

Publication number
DE44386C
DE44386C DENDAT44386D DE44386DA DE44386C DE 44386 C DE44386 C DE 44386C DE NDAT44386 D DENDAT44386 D DE NDAT44386D DE 44386D A DE44386D A DE 44386DA DE 44386 C DE44386 C DE 44386C
Authority
DE
Germany
Prior art keywords
blackboard cleaner
outlet opening
blackboard
cleaner
sponsorship
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 - Lifetime
Application number
DENDAT44386D
Other languages
German (de)
Original Assignee
A. CLAUDIUS in Hamburg, Spitalerstr. 71
Publication of DE44386C publication Critical patent/DE44386C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L21/00—Blackboard or slate cleaning devices

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Electroluminescent Light Sources (AREA)

Description

Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.

BERLIN. GEDRUCKT IN DER REICHSDRUCKEREI.BERLIN. PRINTED IN THE REICH PRINTING COMPANY.

Claims (1)

Pate nt-An spruch:Sponsorship claim: Ein Schreibtafelreiniger, bestehend aus dem Wasserbehälter α und dem verschiebbaren Wischer /, welche von einer gemeinschaftlichen Kapsel i aufgenommen werden und wobei erstererA blackboard cleaner, consisting of the water tank α and the sliding wiper /, which are received by a common capsule i and the former entweder mit einer verschliefsbaren, von den Ventilhebeln dg und einer Feder f bethä'tigten Austrittsöffnung c und Lufteinströmungsöffnung h, either with a closable outlet opening c and air inflow opening h operated by the valve levers dg and a spring f, oder nur mit einer freien, von einer biegsamen Wand des Behälters bethätigten Austrittsöffnung c versehen ist.or is only provided with a free outlet opening c actuated by a flexible wall of the container.
DENDAT44386D Blackboard cleaner Expired - Lifetime DE44386C (en)

Publications (1)

Publication Number Publication Date
DE44386C true DE44386C (en)

Family

ID=319624

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT44386D Expired - Lifetime DE44386C (en) Blackboard cleaner

Country Status (1)

Country Link
DE (1) DE44386C (en)

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