US1575990A - Multiple attachment for cameras - Google Patents

Multiple attachment for cameras Download PDF

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Publication number
US1575990A
US1575990A US18946A US1894625A US1575990A US 1575990 A US1575990 A US 1575990A US 18946 A US18946 A US 18946A US 1894625 A US1894625 A US 1894625A US 1575990 A US1575990 A US 1575990A
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US
United States
Prior art keywords
cameras
multiple attachment
frame
screen
doors
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
US18946A
Inventor
Howard R Hays
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.)
HOWARD S LEVY
Original Assignee
HOWARD S LEVY
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 HOWARD S LEVY filed Critical HOWARD S LEVY
Priority to US18946A priority Critical patent/US1575990A/en
Application granted granted Critical
Publication of US1575990A publication Critical patent/US1575990A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/58—Baseboards, masking frames, or other holders for the sensitive material
    • G03B27/582—Baseboards, easels

Definitions

  • Figure-2 is a substantially longitudinalfsection of theboX and attaehnient taken.
  • the frame comprisesIaQreCtangular ar- J Suitable hinges 17 are. used to attaelied to and-project from the-inner mid-j portion of-the lateral sides'ofthe fralne loto prevent the doors 16*;froro"swinging outdoors 1.6 to vthe inside of thejbo x 10 and out I of the Way of any screen "operating mechanisni.
  • the doors or flaps 21 are thin metal sheets arrangedin pairs-land hinged to the upright nien'ibersotthe frames
  • the length-of each door is: slightly, greater, than required to close one qnarter of the frame opening so npp'eriand lower portionsflof the frame aref-provided-with stop plates'22 disposed midway thereof, and to further ,in's'ure cor rect closed position of each doorv '20," the lat-

Description

March 9 1926.
- H. R. HAYS MULTIPLE ATTACHMENT FOR CAMERAS Filed March 28,
HOWARD R. HAYS it y new- Tb all w igom it ma bone n 1:11. i that-L1Howernlilii Phi - Camera;
- In the co rs'ej' ofeonnnereial work-theuse of small plates often beeoines necessary and under; normal conditions eaeh plate, irre-.
'specti-vefo'f its size, requiresza fsinglefsensitiveqplate. As a measure? of eeonoiny as many as fourplatesare sometimes photo- 5 graphedon Lone; large-plate during four sep arate exposures; whichare'm'ade necessary .by the-fact that eaelr original niayrequire I difieren't "reductionand exposure; Camera 7- poiistriictioi often includes, as a builthrfegif ,ture', aplii' al'ityf of doors or fiaps preferably I (four; li'ielrjarefittedfintojthe soreenf oarry' ing boxand operated independently; from the; outside of. the box; one 7 door fopened iofexpo'seione quarter oftne sensitive plate,-f'the1 1 closed and the next" door: opened to" expose lainotheriqua rterl and soon;
" *Ac oording to the,present inventiom it is I the. urpose thereof; to ,iproyi'de a separate 1 reinovableg at achment, having nnilt ip lying :doorsorffiaps; which may be 11SCll11 one Camera-or another, asidesired.
Whars; Figure-2 is a substantially longitudinalfsection of theboX and attaehnient taken.
on line2+2 of Figure'l I'igure3 is, an ele'-' ational view of thescreencarrying box from; 'andiFigure 4f-is a longitudinal sec- 7 tioii al View of the box showing the multiple attacliment reniovably" supported in the :in'-;
the boir'rearwardly of the screen" bars; v.
larl y'igtoiltliesoreengcarryingbox, 1Q desig 'natesfth'e rectangular ooden frame having af'proitruding ledge '11 on ts (lower Wall pro I na m a fileii'lllgerelr '2 (1925; 7 serial no; 13 46;
egmjvent d- I i Attachments fqifg g of i flmlfo p i-le i f ns sa sp ificati n. .1
the; frame.
that when the jdoors of a pair are closed the or p i endsoverlapand prevent light leaks;v The; lg to ftlie jd'rawi'ngs, and. particle g 1,57a99i0 IroWA'RI R HASQS PHILADELPI-IIA, PENNSYLVANIA; 'AssIeNoR ro-lin owiinn- -s. :AwnmoN-EL Lev n- F PHILADELPHIA; PENNSYLVANIA.
the"fra1ne 10 to reeeiveand hold-thescreen ment,sho\yn particularly in Figures 1 'and2,
-itfwill be clear that the frame 15,, is sup- :vided with centeringprojections 12 to re-':. eeiyethe plate holder, not' shown. The in- .terior an offthe frame 10 'is provided with: I a lining set slightly baek of the face of the'box the'lining being developed tohouse 7 parts of the screen Carrying ineehanisin.
Suitable screen bars 14 *areqadjustablyflino'unted between the'lining 13 and facej of parallel with; the negative glass'in the plate 5 -l'1older,'all ofwhichis-Well'lmownand needs no' fiirvther detail description; iv I 'Referri g;- noW,--to the? multiple attach-" ported by the screen bars 14, in the same manner as the screen itselffwouldg be held.
rangeine'nt having four doors -16, tivo thereof being lunged to each upright side portion of hang thedoors 16 and'stopj 'plates 18 are The frame comprisesIaQreCtangular ar- J Suitable hinges 17 are. used to attaelied to and-project from the-inner mid-j portion of-the lateral sides'ofthe fralne loto prevent the doors 16*;froro"swinging outdoors 1.6 to vthe inside of thejbo x 10 and out I of the Way of any screen "operating mechanisni. A light-tight .eo nnectmnjis:effected:
between the free: edges of each pairlofdoors .16 by overlapping[tongues 19; one thereof being provided on the. outer edgefot eaeli;
rate quarters. l v
1n the preferred embodiment of the invention, illustrated part cularly n Figures Band al the i'raine 20 is Constructed o'f'a "wardly beyondthe faeelo fitheframe. a This construction:confines j the m'oyeinent of the use single piece of castjinetalwhich may be de-'" pended upon to retain its true dimensions. The doors or flaps 21 are thin metal sheets arrangedin pairs-land hinged to the upright nien'ibersotthe frames The length-of each door is: slightly, greater, than required to close one qnarter of the frame opening so npp'eriand lower portionsflof the frame aref-provided-with stop plates'22 disposed midway thereof, and to further ,in's'ure cor rect closed position of each doorv '20," the lat-
US18946A 1925-03-28 1925-03-28 Multiple attachment for cameras Expired - Lifetime US1575990A (en)

Priority Applications (1)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4122470A (en) * 1976-04-28 1978-10-24 Loranger Robert C Hinged multiple exposure matbox attachment for cameras
US4140381A (en) * 1977-09-13 1979-02-20 Polaroid Corporation Multiple format photograhic camera
FR2468928A1 (en) * 1979-10-30 1981-05-08 Candela Roger Contact print photographic equipment - has three plates, one transparent, two opaque and one with holes for light and retaining film and paper
WO1999010774A1 (en) * 1997-08-21 1999-03-04 Wolfgang Imlau Magazine slide with test section windows

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4122470A (en) * 1976-04-28 1978-10-24 Loranger Robert C Hinged multiple exposure matbox attachment for cameras
US4140381A (en) * 1977-09-13 1979-02-20 Polaroid Corporation Multiple format photograhic camera
FR2468928A1 (en) * 1979-10-30 1981-05-08 Candela Roger Contact print photographic equipment - has three plates, one transparent, two opaque and one with holes for light and retaining film and paper
WO1999010774A1 (en) * 1997-08-21 1999-03-04 Wolfgang Imlau Magazine slide with test section windows

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