US3686784A - Latern slide cover - Google Patents

Latern slide cover Download PDF

Info

Publication number
US3686784A
US3686784A US78671A US3686784DA US3686784A US 3686784 A US3686784 A US 3686784A US 78671 A US78671 A US 78671A US 3686784D A US3686784D A US 3686784DA US 3686784 A US3686784 A US 3686784A
Authority
US
United States
Prior art keywords
frame
leaf
sides
inner edge
joined
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
US78671A
Other languages
English (en)
Inventor
Karl Hirsch
Wilhelm Riedl
Siegmund Winkler
Hans Pirker
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.)
HIRSCH PLASTIK
HIRSCH PLASTIKWAREN KARL HIRSCH oHG Firma
Original Assignee
HIRSCH PLASTIK
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 HIRSCH PLASTIK filed Critical HIRSCH PLASTIK
Application granted granted Critical
Publication of US3686784A publication Critical patent/US3686784A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/64—Means for mounting individual pictures to be projected, e.g. frame for transparency

Definitions

  • a first leaf is joined to Said frame at [58] Field 61 Search ..40/159, 158 B, 158, 16 four sides of said inner edge-
  • a Second leaf isjoined to said frame only at three sides of said inner edge.
  • This invention relates to a lantern slide cover and it is an object of the invention to provide improvements in the packaging and use (viewing) of lantern slides.
  • the lantern slide cover according to the invention comprises two leaves, which are joined to the frame adjacent to its inner edge, which defines an opening, one leaf being joined to the frame at four sides of said edge and the other leaf being joined to said frame only at three sides of said edge, whereby a pocket is formed for accommodating the lantern slide.
  • the frame consists of opaque material, one leaf consists of transparent material and the other leaf consists of translucent and preferably dull material.
  • the leaf of transparent material is provided on the viewing side of the other leaf and is joined to the rear side of the frame at four sides of the inner edge defining the opening of the frame whereas the leaf of dull material is somewhat offset from the transparent leaf and joined to the rear side of the frame only at three sides of said edge.
  • the frame and the two leaves are made from hard polyvinylchloride and are joined by welding.
  • the lantern slide cover according to the invention can be made particularly easily from hard polyvinylchloride sheeting. The expenditure of material is small so that the manufacturing costs are low.
  • the lantern slide cover according to the invention Special advantages result from the use of the lantern slide cover according to the invention because a lantern slide can very easily be inserted into and removed from the cover. On the other hand, the cover slides are safely accommodated in the cover and are protected against damage and substantially sealed against an ingress of dust. The viewing of the slides is also improved because the lantern slide cover according to the invention holds the slide in a plane and the leaves which define the pocket are in planar contact with the slide, without irregularities, so that there will be no distortion. The perfectly planar position of the slide and the diffuse light which is due to the use of the leaf of dull material enable an exact examination of the lantern slides. Another advantage resides in that the lantern slide cover according to the invention is particularly flat and much space can be saved when the slides are kept, e.g., in card index boxes.
  • Fl is a er ctive front view and a pe sp cfive rear view.
  • the transparency cover according to the invention consists of a frame 1, which is made from opaque material, preferably hard polyvinylchloride sheeting.
  • the frame 1 has an opening 2.
  • Leaves 3 and 4 are secured to the edge of said opening on opposite sides of the frame.
  • the leaf 3 may consist of a transparent polyvinylchloride sheeting and may be welded to the underside of the frame 1 near its opening on four sides.
  • the leaf 4 may consist of translucent and preferably dull material or a material having a milky appearance, e.g., a suitable polyvinylchloride sheeting, and is joined to the frame only on three sides by a seam weld 6 somewhat offset from the welded joint of the leaf 3.
  • the leaves 3 and 4 thus define a slip-in opening 5 for lantern slides.
  • the lantern slide cover according to the invention may be made in any desired size. Special advantages will be afforded by large-size lantern slide covers.
  • a lantern slide cover comprising a frame having an inner edge which has four sides defining an opening
  • said frame consists of opaque material
  • said first leaf consists of a transparent material
  • said second leaf consists of a dull translucent material of milky appearance
  • said frame has a viewing side and a rear side
  • said first leaf is joined to said rear side of said frame adjacent said four sides of said inner edge
  • said second leaf is secured to said rear side of said frame at only said three sides of said inner edge and on the side of said first leaf which is opposite to said viewing side of said frame
  • said second leaf is slightly offset from said first leaf.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Sheet Holders (AREA)
  • Packaging For Recording Disks (AREA)
  • Packages (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
US78671A 1969-10-20 1970-10-07 Latern slide cover Expired - Lifetime US3686784A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT988069A AT300556B (de) 1969-10-20 1969-10-20 Dia-Schutzhülle

Publications (1)

Publication Number Publication Date
US3686784A true US3686784A (en) 1972-08-29

Family

ID=3618130

Family Applications (1)

Application Number Title Priority Date Filing Date
US78671A Expired - Lifetime US3686784A (en) 1969-10-20 1970-10-07 Latern slide cover

Country Status (3)

Country Link
US (1) US3686784A (de)
AT (1) AT300556B (de)
CH (1) CH497713A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5222315A (en) * 1991-09-19 1993-06-29 Signs & Glassworks, Inc. Picture display frame
US5521420A (en) * 1992-05-27 1996-05-28 Micro Technology Partners Fabricating a semiconductor with an insulative coating
EP0801323A1 (de) * 1996-04-09 1997-10-15 Crosfield Electronics Limited Verbesserungen zum Montieren von transparenten Filmen
US5713148A (en) * 1994-09-21 1998-02-03 Chromium Graphics Inc. Frame with picture holder
US20240341506A1 (en) * 2023-04-17 2024-10-17 Clarissa Anita Harper Photo mat system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1136163A (en) * 1914-06-20 1915-04-20 Charles K Callahan Envelop or the like.
US1210215A (en) * 1914-06-03 1916-12-26 Francis Le Roy Satterlee Jr Support for x-ray negatives.
US1477131A (en) * 1923-12-11 X-ray mount
US1810649A (en) * 1930-02-25 1931-06-16 George S Elliott Display envelope
US3339303A (en) * 1965-01-29 1967-09-05 Microseal Corp Film storage card
US3491471A (en) * 1968-05-09 1970-01-27 Harry F Semple Aperture card with loading slit in card

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1477131A (en) * 1923-12-11 X-ray mount
US1210215A (en) * 1914-06-03 1916-12-26 Francis Le Roy Satterlee Jr Support for x-ray negatives.
US1136163A (en) * 1914-06-20 1915-04-20 Charles K Callahan Envelop or the like.
US1810649A (en) * 1930-02-25 1931-06-16 George S Elliott Display envelope
US3339303A (en) * 1965-01-29 1967-09-05 Microseal Corp Film storage card
US3491471A (en) * 1968-05-09 1970-01-27 Harry F Semple Aperture card with loading slit in card

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5222315A (en) * 1991-09-19 1993-06-29 Signs & Glassworks, Inc. Picture display frame
US5521420A (en) * 1992-05-27 1996-05-28 Micro Technology Partners Fabricating a semiconductor with an insulative coating
US5713148A (en) * 1994-09-21 1998-02-03 Chromium Graphics Inc. Frame with picture holder
EP0801323A1 (de) * 1996-04-09 1997-10-15 Crosfield Electronics Limited Verbesserungen zum Montieren von transparenten Filmen
US20240341506A1 (en) * 2023-04-17 2024-10-17 Clarissa Anita Harper Photo mat system

Also Published As

Publication number Publication date
DE1959890B2 (de) 1975-07-17
DE1959890A1 (de) 1971-06-24
CH497713A (de) 1970-10-15
AT300556B (de) 1972-07-25

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