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Publication numberUS1250074 A
Publication typeGrant
Publication dateDec 11, 1917
Filing dateJan 25, 1916
Priority dateJan 25, 1916
Publication numberUS 1250074 A, US 1250074A, US-A-1250074, US1250074 A, US1250074A
InventorsFrederick A Apfelbaum
Original AssigneeFrederick A Apfelbaum
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Lantern-slide mat.
US 1250074 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)




1,250,074. Patented Dec.11,1917;

j a A i 1 g s. i 3



To all whom it may concern:

Be it known that I, FREDERICK A. Arran- BAtit. a citizen of the United States, and a resident of the city of New York, borough of Manhattan, in the county and State of New York, have invented a new and Imroved-Lantern-Slide Mat, of which the folowing is a full, clear, and exact descrip tion.

Among the principal objects which the present invention has in view are: to provide incorporating in the structure of a slide for showing on the screen, the name and address of the owner of the slide; to provide mats for slides of the character mentioned having stenciled therein the designating marks or symbols; and to provide a structure for accomplishing the objects mentioned, which is simple and eflicient.


Fig. '2 is a .vertical section taken as on the line 2-2 in Fig. 1.


As seen in the drawings, a lantern slide when constructed and arranged in accordance with the present invention, has a color panel 7, whereon a prepared sensitized surface for the ositive reproduction of a photograph is disposed. Upon surface for covering the marginal edge thereof, is placed a mat 8. The mat 8 is c. .L- structed from any suitable material, that referred by me being a thin opaque paper. n the'mat 8 and through one of the marginal areas thereof, is cut a view opening 9,

throughwhich the light is passed in pro ectin the scene of the slide upon the screen.

11 the mat and-suitably placed to be identified with the opening 9, are cut letters 10. composing the name of a proprietor.

letters, such as indicated by the numeral 11, may be employed to give the Specification of Lettenl'atent.

the sensitized opening f carrying a Patented Dec. '11, 1917.

Application fil 1 January 25, 1916. Serial No. 74,238.

address. The letters 10 and 11 are preferably cut by dies to form stencils. This method, however, may be changed by substituting for the dies referred to, the prickmg points commonly used in machines for stenciling or otherwise marking an address in an addressing machine. In other words, any suitable means for cutting the mat 8 in simulation of letters and numbers forming the name and address, is thought to becomrised within the scope of the claims herein made. a

Over the mat is placed a transparent plate 12. The cover plate and color pane: are bound together at their edges oy a strip 13.

By employing mats such as herein described, a manu acturer or owner may have imperishably placed upon the slides, his business card or proprietary mark, which cardor mark is projected upon the screen employed for exhibiting the slide \Vhlle I have herein shown and described the mat employed as having the names or proprietary marks cut therein to produce sections through which the light may, pass to the exhibition screen, it will be -Junderstood that the mat may be treated by 'other conventional methods to render the same transparent. I do not wish to be understood as waiving any right which I may be considered to possess to the broader interpretation of the claims to include the conventional methods above referred to.


1. A. lantern slide mat having a view opening and marginal areas, said areas having stencil sections indicating facts relative to the ownership or subject of the slide.

2. A lantern slide mat having a viewand marginal areas. said areas havressed therein transpicuous marks ing im the 'proprietorship or description.

indicating said marks upon the view screen. 3. A lantern slide comprising a color plate pictorial representation, and a cover plate therefor; in combination with a mat interposed between said plates, said being adapted for projection mat having a central view opening and marginal areas, said areas having transparent marks therein indicating proprietorship of the slide with which they are associated, 5 saidmarks being adapted for projection on a View screen.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.



Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2461536 *Nov 23, 1944Feb 15, 1949Emil N FarkasDisplay device
US4402585 *Feb 25, 1981Sep 6, 1983Minnesota Mining & Manufacturing CompanyEnvelope for transparencies for overhead projectors and like projecting apparatuses
U.S. Classification40/701
Cooperative ClassificationG03B21/64