DE50787C - Device for preventing turned back pages of books and music - Google Patents

Device for preventing turned back pages of books and music

Info

Publication number
DE50787C
DE50787C DENDAT50787D DE50787DA DE50787C DE 50787 C DE50787 C DE 50787C DE NDAT50787 D DENDAT50787 D DE NDAT50787D DE 50787D A DE50787D A DE 50787DA DE 50787 C DE50787 C DE 50787C
Authority
DE
Germany
Prior art keywords
music
books
preventing
turned back
back pages
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
DENDAT50787D
Other languages
German (de)
Original Assignee
A. J. LEHMANN in Berlin, Bellealliancestrafse 71
Publication of DE50787C publication Critical patent/DE50787C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D9/00—Bookmarkers; Spot indicators; Devices for holding books open; Leaf turners

Landscapes

  • Tables And Desks Characterized By Structural Shape (AREA)

Description

Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.

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

Claims (1)

Patent-Anspruch:Patent claim: Eine Vorrichtung zum Verhindern des Zurückschlagens der umgewendeten Buch- und Notenblätter, bestehend in der Anordnung eines Winkels (a), dessen nach unten gekehrter Schenkel (b) in eine Hülse (c) endigt, in deren Innern eine Spiralfeder (d) untergebracht ist, in Verbindung mit dem um Punkt (e) drehbaren Hebel (f), dessen einer Schenkel mit einem Gegengewicht (g) versehen ist, zum Zwecke, den Hebel stets in senkrechter Stellung zu halten, um ein Zurückschlagen der Buchoder Notenblätter zu verhindern.A device to prevent the flipped back of the turned-over book and music sheets, consisting in the arrangement of an angle (a), the downward-facing leg (b ) of which ends in a sleeve (c), inside of which a spiral spring (d) is accommodated, In connection with the lever (f) which can be rotated about point (e) , one leg of which is provided with a counterweight (g) , for the purpose of keeping the lever always in a vertical position in order to prevent the book or sheet music from kicking back.
DENDAT50787D Device for preventing turned back pages of books and music Expired - Lifetime DE50787C (en)

Publications (1)

Publication Number Publication Date
DE50787C true DE50787C (en)

Family

ID=325604

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT50787D Expired - Lifetime DE50787C (en) Device for preventing turned back pages of books and music

Country Status (1)

Country Link
DE (1) DE50787C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4901969A (en) * 1988-09-06 1990-02-20 Ivan Yaeger Book support with means of temporary attachment onto a desk

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4901969A (en) * 1988-09-06 1990-02-20 Ivan Yaeger Book support with means of temporary attachment onto a desk

Similar Documents

Publication Publication Date Title
DE50787C (en) Device for preventing turned back pages of books and music
US1669809A (en) Bookkeeping appliance
DE245665C (en)
DE33418C (en) Book cover
DE278845C (en)
DE33615C (en) Device to be able to quickly and conveniently bring the written form into its correct position on its foundations
US2991573A (en) Sheet holding rack with sheet turner
DE245157C (en)
DE34995C (en) Device for determining the gross and tare weight on the counting device protected under No. 19295
DE84490C (en)
DE59846C (en) School desk
US1081887A (en) Printing-press.
DE31740C (en) Letter folder with box
DE119909C (en)
US737035A (en) Carbon-copy letter-book.
DE39652C (en) Collapsible music stand
DE171352C (en)
DE664744C (en) Cover rail for folder u. Like. With a lifting device consisting of flexible strings
DE309768C (en)
DE15023C (en) Innovation in douche
DE525929C (en) Device for typewriters for line-correct overlapping of writing sheets equipped with perforations on the edges
DE24539C (en) Schachtverschlufs
US388149A (en) powell
DE313661C (en)
US566864A (en) Libbie hyde miller