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Publication numberUS829492 A
Publication typeGrant
Publication dateAug 28, 1906
Filing dateNov 29, 1905
Priority dateNov 29, 1905
Publication numberUS 829492 A, US 829492A, US-A-829492, US829492 A, US829492A
InventorsAlexander S Spiegel
Original AssigneeAlexander S Spiegel
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Display device.
US 829492 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

PATENTED AUG. 28, 1906.



/E @Ue/afar.' ex

' vertising or as a sign or for,l other simi ar purber B fixed with relation to each other, as The object of my invention is to .provideI a device of the -characterindicated `in which" i UNiTED s'rATEs PATENT," OFFICE.

' ALEXADER s. SPIEGEL; oE-(rcaeo, iLLiNolIs.


Specification of Letters Patent. l Application lld November 29, 1905. Serial No. illMi?.

Patented Aug. 2s, 190e.`

To all whom it may concerns e Be it known that I, ALEXANDER S. SPIEGEI.,

which the following is a fu clear, concise,

and exact description.

My invention relates to display devices and is readily adapted for/,use in dis lay adposes.

the visible design is changeable.

My invention contemplates a device in which a plurality of desi ns, each composed of parts alternating wit the parts .of the other design or designs and screened in such manner that by varying the relation of the screenin member to the line of vision the visuale ect is varied. Such change in the relative position of the screen may be effected by making the designs and the screen movable with relation to each other and ispreferably accomplished by im arting a positive motion to said screen whi e the plate remains xed, or vice versa.

I will describe my invention more particular'ly in connection with the accompanying drawings, in which-- l Figure 1 is a front elevation of a device embodying my invention. Fig.,2 is a perspective view of the sign shown in Fig. 1, s ightly modiied in that the screening member is shown iixedly mounted, the change in the visiblel design being produced by a change in the position of the observer. Fig. 3 is a fragmentary front elevation of the device with the screening member removed. Fig. 4 is a cross-section on the line 4 4 of Fig. l, and Fig. 5 is an enlarged cross-section showing a portion of the design diagrammatically.

Similar letters of reference designate simi` but three letters, it is obvious that any number within reasonable limits may be used. The effect, moreover, may-be varied by the use of different colors. A screenin member, here shown as a transparent plate having a series of parallel non-transparent stri s b, is placed over said designs, whereby -om the same point of vision only a single design at a t1me 1s visible through the transparent portions between said stri s. p With the plate A and t e screening memshown in Fig. 2, when viewed directly from the front, the letters N and E are visible, the other of the designs being concealed by the non-transparent strips b. When viewed -from the left, the letters D and C are alone visible. When viewed from the right, the letter V would replace the lett-ers N and D. The transparent plate B, which may be of glass, Celluloid, or other suitable material, serves as a s acing jnember to raise the strips b above t e design, as clearly shown in igs. 4 and 5.

In the drawings I have shown the strips b separated from each other by a space a proXimately one-half the width of said strips. This provides a suitable screen where three entirely distinct visual effects are to be produced by a relative change of the screen with respect to the line of vision.

In Fi 5 I have shown diagrammatically how a cange in the position of the observer roduces a change inthe design visible to im. VWhen directly in front of the sign, the part a, representing a ortion of the letter 5N, is visible throng the transparent opening b', thev parts a and a2, representing letters D and V, respectively, being concealed. When the eye is in the position shown at the left, a alone is visible, a and a.2

'being concealed. It is obvious that the eX- tent of the visible-face of the late A varies with the width ofthe opening and the distance the stri s b are separated from the surface of sai plate. The number of different changes in the visible sign is not limit- ICO ed, therefore, to three, but a much larger Y number is possible.

In Fig. 1 1I have shown the-plate B held in.

contact with the plate A by guide-strips c c at the top and bottom of the device, thus rendering the plate B movable with respect to plate A. Ubviously such movement of the plate back and forth would produce sub- Staiitiauy the Same effect on une4 visible Si n as the movement of the observer whent eV plates are fixed. A'change in the position of the non-transparent strips b with respect to the line of vision produces the change in the visible desi n. It is furthermore obvious that the c ange in the visible desi n may be made more or less gradual. Tie stage of the changes from one to the other may be so gradual as to be practically imperceptible, thus rendering a moving-picture effect. possiblewhere such effect is desirable.

Having thus described my invention, I claimv 1. In a display device, the combination With a plurality of designs each composed of parts a ternating With those of the other design or designs, of a transparent plate overlying said designs, said plate havin a screen upon its front surface through Whic said designs are successively visible u on a relative vchange of 'said screen With the ineof vision, said transparent plate constituting a spacing member for accurately spacing apart the design and the screen.

2. In a dis lay device, the combination with a rear piste having a plurality of de- Jsigns upon its face each composed of parts Ialternating With those of the other design or designs, of a transparent front plate mounted to have a reciprocating motion with -res ect to said rear plate, said transparent platev aving a screen upon its front surface through which said designs aresuccessively visible upon the relative movement of said plates, said transparent plate constituting a s acing member for accurately spacing apart t e design and the screen. f

In Witnessvwhereof I hereunto subscribe my name this 27th day of November, A. D. 1905. i


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2482947 *Jul 12, 1948Sep 27, 1949John SwarbrickDisplay device
US2850825 *Oct 7, 1952Sep 9, 1958Grants Paul RDisplay sign
US3000125 *Feb 24, 1959Sep 19, 1961Cinestat CorpPictorial display device
US3918185 *Feb 19, 1974Nov 11, 1975Hasala ErnestAnimated display
US4255380 *Feb 8, 1979Mar 10, 1981Bjoerkland Mats EMethod and apparatus for manufacturing signs or the like carrying information which is different for different viewing angles
US4263737 *Apr 4, 1980Apr 28, 1981Thomas A. Schutz Co., Inc.Illuminated grid display with primary and secondary copy
US5525383 *Mar 9, 1993Jun 11, 1996Witkowski; Daniel D.Container for diplaying transitory moving images
US5901484 *Jun 9, 1998May 11, 1999Seder; Rufus ButlerManually operated moveable display device
US6745395Oct 25, 2001Jun 8, 2004Noble Tile & Vessel, Inc.Hat with display device
US9478153Feb 27, 2014Oct 25, 2016Rufus Butler SederIlluminated cylindrical animation device
US20030197713 *Mar 11, 2003Oct 23, 2003Takao YoguchiMotion image display device
US20070209250 *Jan 4, 2007Sep 13, 2007Lindemann Peter FImage Viewer for Changing Image Display
US20090071048 *Jun 25, 2008Mar 19, 2009Yi LanMultiple static image display
Cooperative ClassificationG09F19/14