US2596890A

US2596890A - Writing pad for temporary notatins

Info

Publication number: US2596890A
Application number: US44193A
Authority: US
Inventors: George W Dechert
Original assignee: Individual
Current assignee: Individual
Priority date: 1948-08-13
Filing date: 1948-08-13
Publication date: 1952-05-13
Anticipated expiration: 1969-05-13

Description

y 13, 1952 G. w. DECHERT WRITING PAD FOR TEMPORARY NOTATIONS Filed A 1948 .11 I ZUP Patented May 13, 1952 WRITING PAD FORTEMiRA RY NOTATIQ'NS' George W. Dechert, Chicago, 111;

Application August 1a, 1948, Serial No. 44,193 7 Claims. (oi. 3546) This invention is an improvement in writing pads now used for notations of a temporary nature. These pads comprise a black base with a dark plastic impressionable surface such as wax, and an impression sheet removably superimposed on said surface and masking the color of the base, but adapted to adhere to said surface and show the areas of adhesion when a stylus or similar writing instrument is pressed thereon. Upon separation of the impression sheet from the base by any suitable means provided, or by lifting, the temporary adhesion between the impression sheet and base is broken, whereupon the impression sheet again masks the color of the base, erasing the visible areas of adhesion. The surface of the impression sheet opposite the base may be clear and may comprise the writing surface of the pad. Alternatively, the pad may have a transparent Celluloid sheet overlying the impression sheet which may comprise the writing surface of the a pad, being adapted for longer usage than a cellophane'or other fragile impression sheet.

An object of this invention is to provide means on pads of this type to enable users thereof, without the exercise of artistic ability or tedious tracing or copying eifort to produce pictures, cartoons, designs, and other indicia in either black and white or color combinations by the simple expedient of moving a stylus back and f forth across the writing surface of the pad much in the manner normally used in sharpeningthe dull graphite point of a pencil, which designs may be completely removed upon separation of the impression sheet from the base.

It is another object of this inventionto provide visible indications on pads containing designs adapted to be completely removed to enable user's to readily locate the portions of the writingpa'ds on which the desired designs may be produced.

Another object of this invention is to provide designs in black and white or various color combinations, portions of which are visible at all times, which portions are adapted to be'added to or supplemented by other designs upon'app'lication of the stylus to the writing surface; Upon removal of the impression sheet froni'thebase; the portions of the design prodiiced'byi the stylus are removed. In thismanner; either artisticor' humorous effects will result.

Other and further objects and .a'dvantag'esof this invention will be apparent'to thoseskilled" in the art from the following descriptionofthe annexed sheet of drawings which, by way of preferred examples only, illustrates. bodiments of this invention.

several em 2 The designs and other indicia of this invention may be either mixed on the base, the sheets or coatings-of this invention; or on any of the sheets above the base. If desired, the designs of this invention may be located along one or more edges of the pad, enabling a portion of the pad to be used for notations or free-hand drawing. If the padis to be used by children, and contains designs of the type which are adapted to disappear completely from view upon lifting the impression sheet from the base, it will be desirable to visibly indicate the names of animals, birds, and so forth, directly adjacent the points where these will be produced upon applicationof the stylus tothe writing surface.

Silhouettes and other more complete designs according to this invention are produced through the media of very thin sheets which serve as stencils or masking elements which contain variouscut out portions defining such designs, or may comprise the cut out portions removed from such thin sheets, which may be placed directly in-contact with the base. These sheets may be colored substantially the same color and shade as that which appears on the base, in order that th y are effectively masked below the impression sheetwith; the base, or they may be transparent, in order that they may likewise be masked below the impression sheet and,- in addition, will permit visible reproduction of designs of any color or combination of colors on the base upon application of the stylus to the writing surface, such colors being visible-through the cut out portions of the sheets. Alternatively, it will be understood that the sheets ofthis invention may be produced with various contrasting colors and designson the solid portions thereofsupplementing or completing the designs in the cut out portions thereof.

Itis not necessary to use care in the reproduction of the designs, since the coatings or sheets of this invention'will only permit the production of visible lines' within the confines of the cutout, or wax exposed, portions thereof, andwill eifectively' prevent the visible appearance of any lines which extend over thesolid portions thereof unless such portions' are wax coated ashereinafter disclosed.

The sheets of this invention are adapted either forinsertion'in the'p'ad'after the pad'has been ent, depending upon the effects desired in a' particular instance; If the sheets are opaque they'inay; if'desired, have the face thereof contactlng the impression sheet substantially the same color and shade as that on the base, and, if perfectly matched, will be invisible to the user of the pad even when the impression sheet and writing sheet are lifted from the base. If the sheets of this invention are to be inserted directly on the base, they can, if desired, have a gelatinous or other slightly tacky coating on their surface contacting the base which will enable them to remain fairly firmly fixed during use. Thin transparent sheets of cellophane, or plastics similar in texture to cellophane, are useful as insert since they will adhere to the base when pressed thereagainst and will be masked by the impression sheet. or opaque sheets are used, they should Preferably be colored the same or substantially the same as the color and shade on the base. Thin, soft sheets composed of finely woven fabrics, or rubberized fabrics such as rubberized silk, rayon, or' the like, are also useful in this invention. Such sheets or other sheets of the character described as preferred types of sheets which are not inherently adapted to adhere to or lie firmly in contact with the base may be provided with any suitable means to hold them in place. However, it has been found that the solid portions of the insert sheet will be held flatly against the base, after application of the stylus, due to the temporary adhesion which occurs between the base and the impression sheet at the cut out portions after application of the stylus to the writing surface.

If the sheets of this invention are integrally bound in the pad, it will, of course, not be necessary that they be adapted to adhere to the base, but they should preferably be very thin, flexible, and very pliant in order that the complete design in the cut-out portions thereof may be easily produced upon application of the stylus to the writing surface. Very thin sheets of Celluloid and other plastics of that type are useful, as well as thin sheets of various other types.

If transparent sheets are used in this invention, it will be apparent that various color combinations may be applied directly to the base below a paraffin coating on such sheets, which may be rendered visible upon application of a stylus or similar writing instrument to the writing surface.

If the sheets of this invention are other than transparent, and have their surfaces colored contrastingly to the color on the base, they may, in addition, have a parafl'm coating applied thereto on the face thereof which contacts the impression sheet, in which event any colors and designs on the solid part of the insert will be brought into view simultaneously with the designs in the cut-out portions thereof upon application of the stylus, and the complete design may be removed upon separation of the impression sheet from the base.

If desired, the sheets of this invention may be eliminated by treating or producing the base of the pad as follows:

Before the parafiin coating is applied, the base may be temporarily covered with a stencil during. the coating operation,.which stencil may later be removed. The parts of the base which are wax coated will then permit the production of visible lines, while the uncoated parts will remain blank when the stylus is moved thereover.

The wax-coated base may have its surface temporarily covered with a stencil while a color- If semi-opaque, translucent,

4 less or colored lacquer is applied to the parts exposed by the stencil. After removal of the stencil, the parts covered by the lacquer will remain blank, while the wax-exposed parts will enable the reproduction of visible lines.

On the drawings:

Figure 1 is a perspective view of a writing pad herein discussed, showing two devices of this invention placed in position on the base.

Figure 2 is a plan view of the pad of Fig. 1, showing the visible effects obtained upon application of a stylus or similar writing instrument to the writing surface over the devices mounted on the base.

Figure 3 is a plan view of a transparent sheet comprising two parts, one with printed words Ball and Dog thereon, and the other containing cut out or stamped out likenesses of the object and animal designated on the first part.

Figure 4 is a plan view of the writing pad showing the visible results obtained when the sheet of Fig. 3 is folded back on itself at the dotted line and inserted in the pad, after a stylus has been applied above the cut-out portions.

Figure 5 is an enlarged vertical cross-sectional view taken along line VV of Fig. 4 showing the positions of the two parts of the sheet of Figure 3 when folded and inserted in the pad of Fig. 4.

Figure 6 is a plan view of another sheet comprising two parts also adapted to be folded at the dotted line, the part to be placed above the impression sheet being transparent and containing line drawings and cut out portions depicting diamonds, and the other part being opaque and having cut out portions.

Figure 7 is a top plan view of a pad of the type described showing the base of the pad containing three separately colored sections below the wax coating.

As shown on the drawings:

Reference numeral I0 designates generally a writing pad of the type herein discussed, comprising a blue cardboard base H coated with a dark waxy material I la which is somewhat tacky, a comparatively thin semi-opaque impression sheet l2 overlying the wax coated surface H01. and adapted to releasably adhere to the coating, and a transparent Writing surface sheet I 3 overlying the impression sheet. The three sheets may be bound together along common edges I4 thereof by any suitable means such as a writing tablet binder l5. It will be understood that a pad containing only base H and semi-opaque sheet 12 could be used on a pad of this type, in which case the top of the sheet l2 would comprise the writing surface of the pad and would in this case be composed of a more durable material.

Thin sheets I8 and H exemplifying devices of this invention are illustrated in Figures 1 and 2, which figures may be considered conjointly. Sheet I6 may be either transparent, translucent, semi-opaque, or opaque. If sheet 16 is other than transparent or translucent, it should be colored substantially the same color and shade as that which appears .on the base with a coloring material which will not adhere to the impression sheet [2, being thus adapted to be effectively masked below the impression sheet [2 before the stylus (not shown) is applied to the writing surface. Sheet l6 contains a solid portion and a cut out portion, .an edge of the latter being designated l6a, outlining a star in its central part. The solid portion of sheet I! is shown as opaque and is colored red, to contrast with the lu ol enthe se. w th. s. qq qr ne. mate i which will not tend to adhere to the impression he t he id q tioh hest 1 es ed; e d t d to heps msh n ly; havinga color thereon which; is bri Sheet il n e s s, W. t p rtio a so. d. ire a t r. an edge of which is designated lla. It should x siee a e sible i e n. F ur 1 31 5 i heet l r Par 5d. Q sh st-W her in.- eit q i efiz sh -sheet oh ss h. h s nvenr 9 W sh i ontrastin co r to th color o t base eneath it. ma sen -sin a. p raffin costinsoh t sur ace conta t n he, impr ssion sheet [2 if desired, in which case the color on the solid portion thereof will: be rendered visible simultaneously with the appearance of the design inits cut out portion aft application of the stylus. In this case, ofcourse, the contrasting color on the solid portion should bev of a weak or subdued nature, inorder that all parts of the design may be removed upon separation of the base and impression sheet.

Figure} illustrates the visible resultwobtained after a stylushas been applied to the writing surface sheet is, the sheet 1,6 remaining invisible while the cut out design of-a star Ifiain its central portion is clearly visible, appearing the same color as that on the base. The'solid part of sheet I! is visible and will appear-in red while the star will be visible, being blue the same as the base. I Square sheets [6 and If!" are illustrated merely by way; of example. Sheets for n h s v ti ahbe. f ny s a a d es ou be ve hin. nd. l an an o a ou d sn o ssharss er. lorde t a hen mounte o he ase. e, mnr ssiqh s eet yi s h s o may isi l -pre ent a fl tuhinterrupted surface and so that the rubbing of a stylus on the sheet l 3 will not form depressions h c s h us to Jump as itpa ses o e he d s -d nin e ges-v Sheet IB, by way of example, could have its outermargin in the shape of a pumpkin, while the cut out parts of therdesign could definethe eyes, nose and mouth. If sheet, l6 werethus shaped, and were small in size, acomplete image of apumpkin headrwould, result after application of the stylus,- and; any linesextending beyond the outer margin, of thesheet would be contrastingly colored with respect-to the solid portion, thus clearly, bringing outv the image, in contrast with the lines surrounding it. Many other images can be producedin a like manner.

Either sheet 15 or IT on a givenpad could be larger than shown, being equal in dimensions to the writing surface of the pad and. being integrallybound with the other sheets. In, the case of sheet l1, its solid portioncouldbe colored, in various colors instead of just; one, as shown. Likewise either sheet lfi or I] could contain many small images which could beproduced separately and obliterated or partially obliteratedeither separately or simultaneously; as desired y. e us ts 6; and 1 ma becompssed of fabric msterislit es e Figures 3, 4, and, 5 may beconsidered coni rur 3 hew a s eet; iiom s n two sections, Illa andjflb respectivelv-withthe part 18a containin visibly printed words-Ball and Dog and part; I 8b containingcut out parts designated at an edge as |8d defining the like-,

nesses of the respective article and animal visibly named on part 18a. Referring toEig. 4,

d: he; pa or Fiehe. ords f.=.-course, w l be n front: or h impre sion. she t: a d: will be visible at all times. After application, of the s y us o shee h li enesses insert. L812 will be om visi l a jacent the Print d-Words. Fi r 5 s ws-th p s io ng of the parts oi sheet 8- it 'beine olded so t at its parts 18a and t8?) are respectively in frontof and in back of impression sheet; L2, It will be apparent that hee i coulde l r r. in order that, when folded, itslength andwidth could correspond to that of the writing surface of the pad, Whereupon it couldeit sr. be bound as an integral part of the padas thus folded, o-r'the parts 480. and I81; could-persevered; at the lilielof; fold and bound with its partsin upright; position at: I5.

Figure 6:-shows a sheet [9 similar; in purpose tothat of sheet i 8,: and, containing; a. transparent part major insertion above the impression sheet after folding. Bart [9,60, as illustrated, may contain cut;- out designs; designated: at an edge as l-9b, and lines I90. The part [9d, for insertion below the impression sheet, contains an opaque redcoating contrasting with the blue color on the base such as, H of Fi ures 1 and 2, and also contains cutout portions, designated at an edge as 96. When sheet: J'Bisfoldedalong line {9}, the. diamonds 19b, and, l:9 c "will. be directlyabove, the circles [99, After application of the stylus, the,cu t out. parts I96. and: 12g will appear in the same color asthaton. the base, while the solid portions will baited. Part. [9d has its central portion cut out, in, orderthatthe center of the pad, will beavailable for: notations.- Sheet 19 is also adapted for use on apad with a base such as hereinafter discussed in;Eig ure.7. bein adapted for aside binding; tablet asillustrated. 1

It shouldbe-understood that; either sheet; l8 or I9 on a given pad could be bound as folded, with the line'offold being at the binding edge is. In the case of sheet. l8, of course, the visible. image on part l3a and the imagedefined by the cutout parts of part Iflb would have to be arranged so they would both be-upright and in desired superimposed relation upon folding. Also, it will be understood that the images on sheet l8, instead of being juxtaposed-upon folding, could be arranged so that they would be superimposed in anydesired combinationof designs. Also, the parts of either sheet l8 or I9 could be separate sheets, the part below being of fabric material, with the partabovethe impression sheet being cfa transparent. material.

It will be Seen 'from the above descriptions of Figures 1 to 6 that, innumerable color combina-- visible, or which can be weak orsubduedin character and coated with paraffin in order thatthese solid portions. may be brought intoview simultaneously withthe design. defined: by the cut-out portions. Inthe caseofthefoldedinsert sheets I8-and lS-illustrated,.bothparts may.

contain various colors, either matching. or. contrasting with the; color on the. base.

Figure 7 shows a base I I having an impression surface composed of three sections, Ilb, He, and I Id, respectively colored red, green, and blue below the wax coating (not shown) thereon. These colors may be arranged in any desired manner, and the invention is not limited to any particular colors. This type of base is especially adapted for use in connection with the transparent sheets of this invention, since this type of sheet if wax coatedon the side contacting the impression sheet will render visible any color or combination of colors on the base upon application of a stylus. If it be desired that the colors on the base of Figure '7 be substantially invisible through the impression sheet [2 before application of the stylus, the colors may be subdued either by printing them in fairly weak hues, or by putting a small amount of blue or gray coloring in the wax coating over the colors. Alternatively, brighter colors could be used and the semi-opaque coating on the impression sheet I2 could be heavier, to accomplish the desired results.

It will be evident that the part l8b of Figure 3 and the part l9d of Figure 6 could be used alone beneath the impression sheet if only cutouts or similar designs are desired.

From the above description of this invention it will be evident that, with its use, writing pads heretofore only used for temporary notations will now be capable of automatically producing various designs, pictures, and other indicia in black and white and color combinations. Portions of the pads may be used for these automatic reproductions, while other portions adapted for temporary notations.

The educational advantages of this invention will readily become apparent, since a child using the pad will see the printed words naming animals, birds, or objects, and, by moving the stylus back and forth adjacent the printed words, will be able to easily produce a likeness of the desired design. Thus, a knowledge of spelling and its association with a likeness of the object designated by the word may be combined to add to the childs knowledge. In addition, if the child is artistically inclined, he may draw the animal, bird, or object on the portion of the pad adapted for temporary notations and free-hand drawing.

If the base of the pad for use in this invention is prepared in either manner hereinabove set forth, the base itself will take the place of the insert sheets with cut-out portions. In this case, if a complementary design is desired to be used above such a base, this result can be accomplished by inserting a single sheet containing permanently visible designs between the im pression sheet and the transparent writing surface sheet in matched relation with the design on the base underneath.

It will also be understood that in a pad containing one color on the base below the paraffin coating, which could, for example, be a dark blue, the visible outlines of drawings on a sheet above the base as hereinabove set forth may be of the same color but of a slightly lighter shade than the color on the base, and suitable cut-out means could be provided directly below such outlined drawings which would completely surround and remove the drawings from view upon application of the stylus to the writing surface of the pad. In this case, of course, such outlined drawings could be brought into view may be :2

8. upon removal of the impression sheet from the base.

Various other uses'of both the silhouettes and like drawings of a'more complete nature, and the drawings parts of which may be completed upon application of the stylus, will readily become apparent.

I am aware that numerous changes and modifications may be made in the invention herein described without departing from the scope and spirit thereof, and I therefore do not desire to be limited with respect thereto except insofar as set forth in the appended claims.

I claim as my invention:

1. A writing pad comprising a colored tacky impressionable base, a, semi-opaque impression sheet in superimposed relation to said base and adapted to releasably adhere to said base upon application of pressure, transparent tough diaphanous means including means above said impression sheet marked with visible indicia and means between said impression sheet and impressionable base having voids outlining indicia, said voids upon application of writing pressure to the impression sheet becoming visible on the impression sheet in the color on the base due to the contact between the impression sheet and base at the void areas for coaction with the marked visible indicia to define a desired combination.

2. A writing pad comprising in superimposed relation 2. colored tacky impressionable base, a masking element in contact with said base having at least one dimension which is less than the corresponding dimension of said base and composed of a tough diaphanous membrane containing design defining cut out portions, and a removably superimposed semi-opaque impression sheet normally hiding said masking element and the color of said base when lying thereagainst but being adapted to releasably adhere to the exposed portions of said base upon ap-' plication of writing pressure to said impression sheet to enable predetermined parts of the pad outside the area encompassed by said membrane to be used for writing and other predetermined parts of the pad within the area encompassed by said membrane to be used for the automatic production of desired designs defined by the design defining cut out portions of said masking element upon application of writing pressure to said impression sheet over said desired designdcfining cut out sections including and extending beyond the cut out areas thereof.

3. A writing pad comprising a colored tacky impressionable base, a semi-opaque impression sheet, and a transparent writing sheet in superimposed relation, tough diaphanous means including means between .said impression sheet and impressionable base having voids outlining indicia normally masked by said overlying impression sheet and means above the impression sheet marked with visible indicia indicating the location of the indicia-outlining voids below the impression sheet, said masked indicia-outlining voids becoming visible on the impression sheet upon the application of writing pressure to'the impression sheet in the color of the base to cooperate with the marked indicia above the impression sheet for defining a desired combination.

4. In a writing pad comprising a base having a colored tacky impressionable surface and an impression sheet overlying and hiding said surface but adapted to releasably adhere to said surface and render visible the color thereof along a line of impressure, the combination which comprises a masking element composed of a substantially transparent tough diaphanous membrane interposed between the base and said impression sheet permitting full contact of .said impression sheet and base at certain areas while preventing such contact at other areas to produce a predetermined effect on the impression sheet when pressure is applied along the areas thereof superimposed over said areas of the masking element.

5. The writing pad of claim 4 wherein the masking element is a stencil containing cutout and solid portions, the cut-out portions being adapted to be rendered visible through the impression sheet upon application of a writing instrument to the surface of the pad by moving said instrument back and forth thereover at points including the cut-out portions therebelow to produce a predetermined effect on the impression sheet.

6. In a writing pad comprising a base having a colored tacky impressionable surface and an impression sheet overlying and hiding said surface but adapted to releasably adhere to said surface and render visible the color thereof along a line of impressure, the combination which comprises a masking element composed of a tough diaphanous membrane having substantially the same color as the impressionable surface and interposed between the base and the impression sheet and permitting full contact of said impression sheet and base at certain areas while preventing such contact at other areas to pro- Number Name Date 148,291 Fowler Mar. 10, 1874 793,376 Jahn June 27, 1905 1,275,997 Adler Aug. 20, 1918' 1,541,480 Compton et al June 9, 1925 1,555,642 Deutsch Sept. 29, 1925 1,568,548 Edelson Jan. 5, 1926 1,729,916 Vernon Oct. 1, 1929 2,201,479 Davidson May 21, 1940 2,323,521 De Journette July 6, 1943 FOREIGN PATENTS Number Country Date 172,434 Germany June 21, 1906 duce a. predetermined effect on the impression sheet when pressure is applied along the areas thereof superimposed over the areas of the masking element. 7. The writing pad of claim 6 wherein the masking element is a stencil containing cut-out and solid portions, the -cut-out portions being adapted to be rendered visible through the impression sheet upon the application of a writing instrument to the surface of the pad by moving said instrument back and forth thereover at points including the cut-out portions therebelow to produce a predetermined efi'ecton the impression sheet.

. GEORGE W. DECHERT.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS