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Publication numberUS736035 A
Publication typeGrant
Publication date11 Aug 1903
Filing date24 Feb 1903
Priority date15 Jan 1901
Publication numberUS 736035 A, US 736035A, US-A-736035, US736035 A, US736035A
InventorsJohn Stevenson
Original AssigneeJohn Stevenson
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Changeable picture.
US 736035 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

No. 736,035. PATBNTED AUG. 11, 1903.




H0 MODEL THE Nonms PETERS cu. no-rcxumu. WASHINGTON. o. c.

to the atmosphere. I

No reacts.

NITED STATES i atented August 11,



srn'ornrcnrroiv forming part of Letters Jatent 1\To. 756,035, dated August 11, 19cc.

Original application filed January 15, 1901, Serial No. 43,402. No. 144,306.

To aZZ whom it may cOnOern:

Be it known that I, JOHN STE NSON, a subject of the King of Great Britain and Ireland, and a resident of 4 Albert Terrace, Trinity, Edinburgh, county of Mid-Lothian, Scotland, have invented a certain new and useful Changeable Picture, (which I have divided out from Serial No. 43,402, filed January 15, 1901, and for which I have made application for Letters Patent in Great Britain,No.17,783, dated October 6, 1900,) of which the following is a specification.

My invention relates to an improved method of representation of designs or characters upon paper, cloth, or other material and the picture produced thereby; and the object of the invention is to enable a gradually-changing eitect in the designs to be obtained under the action of light or internal chemical action or chemical action resultingfrom exposure The invention consists ot' printing a representation in a permanent color then applying over said representation, so as to conceal or cover the same, a color of different hue which is non-permanent and disappears when exposed to light, and then exposing the representation to the action of light, whereby the non-permanent color disappears and leaves the representation in a permanent color.

It also consists of a changeable picture produced by practicing the said process.

In carrying the invention into effectI em ploy for making a design pigments of diiferent color, one or more of which may be permanent and the remainder n'ou-permanent. In making a design from permanent and nonpermanent colors one color is applied first to the paper or other material, and the remaining colors are superimposed upon it. On exdosing the design to the light the non-per manent colors disappear and leave the permanent color or colors to indicate the design.

In order that my invention may be clearly understood, I shall now particularly describe it with reference to the accompanying drawings, in which-- Figure 1 represents the appearance of one form of prepared print in accordance with my invention. Fig. 2 represents the same print Divided and this application filed February 24, 1903. Sari (No model.)

after it has been exposed to the action of lightfor some time; and Fig. 3 represents the fully-exposed print, showing the developed picture. Fig. 4 represents a design in which letters or characters are printed in ac= cordance with my invention. Fig. 5 represents the result of exposing the design to the action of light.

Referring now to Figs. 1- to 3, in carrying out my invention according to one modification I print in one or more colors, according to any of the well-known processes of printing a picturefor example, such as is seen in Fig. 3and over the whole picture I apply a dark non-permanent color-pigment, so as to completely obliterate the picture, the result being similar to that represented in Fig. 1. In addition to the fugitive dark pigment employed for rendering the whole picture invisible some of the colors of the diiferent. parts of the design may be overlaid with non-permanent color, which is not so fugitive as the dark obliterating color. For example, in the design shown in Fig. 3 the leaves a. may be printed in permanent green, while the rose 5 may be printed in permanent yellow covered over by some color-for example, an impermanent white--which is relatively less fugitive than the dark obliterating color. The result after partial exposure ofthe print seen in Fig. l is as illustrated in Fig. 2, where the dark obliterating color has practically completely disappeared, showing the picture with its colors partially developed, the leaves a then appearing in green color and the rose 1) with its outlines incompletely defined. Upon further exposure the picture appears, as illustrated in'Fig. 3, in its natural permanent colors,showing ayellowrose with green leaves. In applying my invention-for the purpose of producing changeable representations in printed letters or characters I first print in permanent pigment or inl; a combination of letters which"for,msan intelligible word or words-for example, such as is seen in Fig. 5. I then add to the letters by printing in nonpermanent colors any arrangement of markings which will render the words unintelligible, as illustrated in Fig. 4, where the nonpermanent parts are indicated by the double ICO lines 0. Upon exposure to light of the design shown in Fig. 4; the parts marked 0 disappear, producing the original intelligible words.

It will be obvious that according to my invention many varied effects pleasing to the eye may be produced.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The process of producing pictures consisting of printing a representation in a permanent color, then applying over said representation, so as to conceal or cover the same, a color of different hue, which is non-permanent and disappears when exposed to light, and then exposing the representation to the action of the light, whereby the non-permation, and another is non-permanent and dis l.

appears when exposed to light, is of a difierent hue from the permanent color, and is applied all over said permanent color so as to temporarily conceal or cover the same.

In witness whereof Ihave hereunto set my hand in presence of two witnesses.




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US5282651 *15 Apr 19911 Feb 1994Frank AlonsoTrading cards and method of concealing and revealing information thereon
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US6086697 *29 Jul 199811 Jul 2000Stephen Key Design, LlcRotating label system and method
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US665155127 Jul 200025 Nov 2003Appear Gear, Inc.Printable absorbent surface having permanent image and disappearing image
US70872983 Dec 20018 Aug 2006Stephen Key Design, LlcRotating label system
US717266823 Jan 20046 Feb 2007Stephen Key Design, LlcRotatable label system and method
US897375525 Jan 201210 Mar 2015Spinlabel Technologies, Inc.Compliance aid labeling for medication containers
US908540216 Aug 201221 Jul 2015Spinlabel Technologies, Inc.Medical information rotating label system for a container
US934299914 Apr 201417 May 2016Spinlabel Technologies, Inc.Machine readable information interface for a container
US20020104613 *27 Mar 20028 Aug 2002Key Stephen M.System and method for a rotatable sleeve device
US20040166277 *23 Jan 200426 Aug 2004Key Stephen M.Rotatable label system and method
Cooperative ClassificationB41M3/142, Y10S283/901