DE519211C - Process for the production of bellows or the like for photographic purposes - Google Patents

Process for the production of bellows or the like for photographic purposes

Info

Publication number
DE519211C
DE519211C DE1930519211D DE519211DD DE519211C DE 519211 C DE519211 C DE 519211C DE 1930519211 D DE1930519211 D DE 1930519211D DE 519211D D DE519211D D DE 519211DD DE 519211 C DE519211 C DE 519211C
Authority
DE
Germany
Prior art keywords
bellows
leather
production
bakelite
stiffening
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
DE1930519211D
Other languages
German (de)
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.)
Zeiss Ikon AG
Original Assignee
Zeiss Ikon AG
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 Zeiss Ikon AG filed Critical Zeiss Ikon AG
Application granted granted Critical
Publication of DE519211C publication Critical patent/DE519211C/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/04—Bodies collapsible, foldable or extensible, e.g. book type
    • G03B17/045—Bellows

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Laminated Bodies (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Description

Verfahren zur Herstellung von Balgen o. dgl. für photographische 'Zwecke Bei den bisher bekannten Herstellarten von Balgen für photographische Zwecke, Lichtschutzkappen o. dgl. wurde eine Versteifung der sich an die gelenkartig wirkenden Stellen anschließenden Teile dadurch erreicht, daß daselbst maschinell oder von Hand besondere Einlagen, z. B. Papierstreifen, aufgebracht wurden.Process for the production of bellows or the like for photographic purposes In the previously known types of manufacture of bellows for photographic purposes, light protection caps o. The like. A stiffening of the areas adjoining the joint-like acting locations Parts achieved by using special inserts, either by machine or by hand, z. B. paper strips were applied.

Diese Herstellungsweise ist kompliziert und teuer.This manufacturing method is complicated and expensive.

Um diesen Übelstand zu beseitigen, sind bei dem neuen Verfahren ein oder mehrere zur Herstellung der Balgen usw. verwendete Teile (Leinwand-, Leder-, Papierbahnen) durch Tränkung mit oder Auftrag von Substanzen, Zaponlack, Bakelitmasse, Zementleim o. dgl, in Verbindung mit Filzstaub usw. so präpariert, daß ihre gelenkig wirkenden Stellen geschmeidig, die anderen Stellen aber in sieh versteift wirken, wobei die Versteifungsmasse auch gleichzeitig als Bindemittel zwischen zwei Balgenteilen, z. B. der Leder- und Leinwandbahn, Verwendung findet.In order to remedy this drawback, a or several parts used to manufacture the bellows, etc. (canvas, leather, Paper webs) by impregnation with or application of substances, zapon varnish, bakelite mass, Cement paste o. The like, in connection with felt dust, etc. prepared so that their articulated appearing areas supple, but the other areas appear stiffened, whereby the stiffening mass also acts as a binding agent between two bellows parts, z. B. the leather and canvas web, is used.

Die Herstellung kann erstmals unter Ab- deckung der in sich geschmeidig verbleibenden Stellen der Balgen- (Leder-, Stoff- o. dg1.) Bahnen mittels Schablonen, durch Spritzen @-on Zapon, Filzstaub usw. mittels Zerstäuber erfolgen, wobei die aufgetragene '.Masse selbsttätig sich mit der Unterlage bindet und hierzu verhärtet, so daß die Versteifung der Flächen eintritt, oder die aufgebrachte Masse von Bakelit o. eintritt-, kann unter Pressung und Erwärmung an den Versteifungsstellen angebracht werden.The preparation can for the first time under the cover waste remaining in smooth face the bellow-(leather, fabric o. Dg1.) Webs by means of templates, carried out by spraying @ -one Zapon, Filzstaub etc. by means of spray, wherein the applied ' .Mass binds itself with the base and hardened for this purpose, so that the stiffening of the surfaces occurs, or the applied mass of Bakelite o. Enters, can be attached to the stiffening points under pressure and heating.

Es ist weiterhin möglich, die ganze Bahn von Leder o. dgl. mit Versteifungssubstanz zu tränken und durch hohen Druck die starr gewünschten Stellen hervorzurufen.It is also possible to use the entire length of leather or the like with stiffening substance to soak and to create the rigidly desired places by high pressure.

Claims (1)

PATENTANSPRCHE: i. Verfahren zur Herstellung von Balgen o. dgl. für photographische Zwecke, dadurch gekennzeichnet, daß der oder die hierzu verwendeten Teile, insgesamt oder einzeln, -durch Tränkung mit oder Auftrag von Substanzen, wie z. B. Zaponlack, Bakelit, Zementleim o. dgl. in Verbindung mit Filzstaub usw. so präpariert sind, daß ihre gelenkartig wirkenden Stellen geschmeidig bleiben, die anderen Stellen in sich versteift wirken. z. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß die Versteifungsmasse (Bakelit o. dgl.) mittels Schablonen zur Grundbahn (Leder o. dgl.) aufgebracht und durch Pressung und Erwärmung hierzu festgelegt wird. 3. Verfahren nach Anspruch i, dadurch gekennzeichnet,. daß die Bahnen von Leder o. dgl. in sich mit einer Masse getränkt oder überzogen sind; die; an bestimmten Stellen unter hohen Druck gebracht, hier starre Flächen bildet. q.. Verfahren nach Anspruch i bis 3, dadurch gekennzeichnet, daß die Versteifungsmittel auch die Bindemittel zwischen zwei Balgenteilen, z. B. einer Leder- und einer Leinwandbahn, bilden.PATENT CLAIMS: i. Process for the production of bellows o. The like. For Photographic purposes, characterized in that the one or more used for this purpose Parts, as a whole or individually, by impregnation with or application of substances, such as B. zapon varnish, bakelite, cement glue or the like in connection with felt dust, etc. are prepared in such a way that their joint-like areas remain supple, the other places seem stiff in themselves. z. Method according to claim i, characterized characterized in that the stiffening compound (Bakelite o. The like.) Using templates for Base sheet (leather or the like) applied and fixed for this purpose by pressing and heating will. 3. The method according to claim i, characterized marked. that the sheets of leather or the like are soaked or coated with a mass; the; brought under high pressure at certain points, forming rigid surfaces here. q .. The method according to claim i to 3, characterized in that the stiffening means also the binders between two bellows parts, e.g. B. a leather and a canvas panel, form.
DE1930519211D 1930-02-25 1930-02-25 Process for the production of bellows or the like for photographic purposes Expired DE519211C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE519211T 1930-02-25

Publications (1)

Publication Number Publication Date
DE519211C true DE519211C (en) 1931-02-25

Family

ID=6550396

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1930519211D Expired DE519211C (en) 1930-02-25 1930-02-25 Process for the production of bellows or the like for photographic purposes

Country Status (1)

Country Link
DE (1) DE519211C (en)

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