DE54838C - School blackboard with closure - Google Patents

School blackboard with closure

Info

Publication number
DE54838C
DE54838C DENDAT54838D DE54838DA DE54838C DE 54838 C DE54838 C DE 54838C DE NDAT54838 D DENDAT54838 D DE NDAT54838D DE 54838D A DE54838D A DE 54838DA DE 54838 C DE54838 C DE 54838C
Authority
DE
Germany
Prior art keywords
panels
closure
plates
frame
cover plates
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
DENDAT54838D
Other languages
German (de)
Original Assignee
H. gerlof und H. leetsch in Altona, Eimsbüttelerstrafse 45
Publication of DE54838C publication Critical patent/DE54838C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43LARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L1/00Repeatedly-usable boards or tablets for writing or drawing
    • B43L1/02Slates

Landscapes

  • Drawing Aids And Blackboards (AREA)

Description

Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.

Claims (1)

KAISERLICHESIMPERIAL PATENTAMT.PATENT OFFICE. Vorliegende Erfindung bezweckt, bei Schiefertafeln den Schiefer und die auf demselben vorhandene. Schrift zu schützen. Die beifolgende Zeichnung zeigt eine mit der Neuerung versehene Schultafel, und zwar Fig. 1 im geschlossenen, Fig. 2 im geöffneten Zustande, Fig. 3 in Endansicht, Fig. 4 senkrecht geschnitten, Fig. 5 waagrecht geschnitten und Fig. 6 stellt eine Einzelheit des Verschlusses in etwas gröfserem Mafsstab dar.The object of the present invention is, in the case of slates, the slate and the slate present on the same. Protect font. The following drawing shows one with the innovation School blackboard, namely Fig. 1 in the closed, Fig. 2 in the open state, Fig. 3 in end view, Fig. 4 in vertical section, FIG. 5 is a horizontal section and FIG. 6 shows a detail of the closure in FIG somewhat larger scale. Auf beiden Längsseiten des Tafelrahmens R werden in Schlitzen / verschiebbare Schutzplatten 4 angebracht und mit Platten B gelenkig verbunden. Letztere schieben sich bei geschlossener Tafel unter Schliefsbleche c, welche an den schmalen Seiten des Rahmens befestigt sind. Das Oeffnen des Verschlusses erfolgt durch Auseinanderschieben der Platten A und Umlegen der Platten B, das Schliefsen in umgekehrter Weise. Zur Sicherung des Verschlusses können auch statt der Schliefsbleche c Blattfedern f, Fig. 6, zur Anwendung kommen, welche, in der Mitte durch eine Schraube am Tafelrahmen befestigt, mit ihren Enden die Deckplatten B gegen den Rahmen drücken.Slidable protective panels 4 are fitted in slots / on both long sides of the panel frame R and connected to panels B in an articulated manner. When the board is closed, the latter slide under striker plates c, which are attached to the narrow sides of the frame. The closure is opened by pushing the panels A apart and turning the panels B, the closing in the opposite way. To secure the lock, leaf springs f, Fig. 6, can also be used instead of the locking plates c , which, fastened in the middle by a screw to the panel frame, press the cover plates B against the frame with their ends. Patenτ-Anspruch:Patenτ claim: Eine Schultafel mit Verschlufs, bestehend aus Deckplatten A, welche mittelst Schlitze I verschiebbar und mit Deckplatten B drehbar verbunden sind, die durch Schliefsbleche c oder Blattfedern / gesichert werden.A school board with lock, consisting of cover plates A, which are slidable by means of slots I and rotatably connected to cover plates B, which are secured by locking plates c or leaf springs /.
DENDAT54838D School blackboard with closure Expired - Lifetime DE54838C (en)

Publications (1)

Publication Number Publication Date
DE54838C true DE54838C (en)

Family

ID=329407

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT54838D Expired - Lifetime DE54838C (en) School blackboard with closure

Country Status (1)

Country Link
DE (1) DE54838C (en)

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