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US2061294A - Display device and process of making the same - Google Patents

Display device and process of making the same Download PDF

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Publication number
US2061294A
US2061294A US754001A US75400134A US2061294A US 2061294 A US2061294 A US 2061294A US 754001 A US754001 A US 754001A US 75400134 A US75400134 A US 75400134A US 2061294 A US2061294 A US 2061294A
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US
United States
Prior art keywords
sheet
backing
display
cellulosic
area
Prior art date
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Expired - Lifetime
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US754001A
Inventor
William G Stephenson
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Individual
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Individual
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Priority to US754001A priority Critical patent/US2061294A/en
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Publication of US2061294A publication Critical patent/US2061294A/en
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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F1/00—Cardboard or like show-cards of foldable or flexible material
    • G09F1/02—Single substantially flat cards

Definitions

  • My present invention relates to devices for display purposes, such as for advertising and the like, and to a method of making the same. More particularly it aims to provide a simplified and inexpensive means of the class mentioned, of extremely attractive appearance, together with a method of producing such device rapidly and with a minimum of equipment and manufactur ing expense.
  • Fig. 1 is a plan of a backing element, in an initial stage of manufacture of the display device as a whole;
  • Fig. 2 is a view similar to Fig. l but showing a completed display device
  • Fig. 3 is a section on the line 33 of Fig. 2;
  • Fig. 4 is an enlarged perspective of one corner portion of the device of Figs. 2 and 3, the front elements being shown partly separated, to facilitate their illustration and description;
  • Fig. 5 is a rear view of a modified form of de- 5 vice embodying the invention and made under the process thereof;
  • Fig. 6 is an enlarged detail sectional view on the line 6-6 of Fig. 5.
  • the device as a whole comprises but two main elements, between which the display sheet or other object is interposed.
  • a backing element, backing or base is indicated at I, and a transparent front, covering or protecting element is shown at 8, Figs. 2 and 3. Between these is positioned the matter for display, which may include any desired number of pieces, within the area of the backing, and herein represented by the sheet 9. a
  • the backing or base element 1 may be composed of any suitable material which is self-supporting and of substantial rigidity such, for example, as cardboard, paperboard, wallboard, plywood, and similar relatively rigid sheet materials.
  • a chipboard to be satisfactory for the purpose, for example, a standard commercial chipboard of about it; inch thickness. It will be understood, however, that various materials, and of different thickness, may be employed, depending somewhat upon the display area desired and the inherent rigidity of the material used.
  • a cellulosic solvent such as any known or suitable agent having a solvent and subsequent contractile eflect upon those transparent cellulosic sheet materials under consider- V50 ation.
  • a cellulosic solvent such as any known or suitable agent having a solvent and subsequent contractile eflect upon those transparent cellulosic sheet materials under consider- V50 ation.
  • solvents are the several commercial-alcohols, or mixtures thereof, and other cellulosic solvent agents, but preferably I em-' ploy a solvent which is distinctly volatile, such as ethyl alcohol, or an acetate or ester, for example,
  • One preparation which I have found particularly adapted for the purpose comprises a mixture of ethyl acetate to about 90 per cent and ethyl alcohol to about per cent.
  • Other examples effective in practice are a mixture of a major portion of ethyl alcohol with the balance amyl acetate, and a mixture of cent ethyl acetate and the remainder ethyl alcoho a
  • the solvent may be brushed 'on or applied with a substantially saturated sponge, felt dauber, or
  • the application is made to the front face of the backing l, as indicated at Ill, ill,
  • Fig. 1 The display sheet, piece or pieces 9 are then positioned 'fiatwise upon and against the backing.
  • the matter for display may be a pictorial print, an advertising cut or reprint,
  • display object 9 (which is herein illustrative of any display piece or pieces) is positioned on the treated backing preferably without a securing,
  • the cellulosic sheet in puddles or drops, to make direct liquid contact with the cellulosic sheet.
  • the latter is adhesively or otherwise secured in applied position, generally and preferably by folding the cellulosic sheet around the side edges of the backing fl and gluing, cementing or otherwise retaining it at the rear face of the backing, as indicated at l2, l2 in Fig. 3. If desired, strips of adhesive tape may be used for said purpose.
  • Thelength of the curing period is proportional to the temperature and relative humidity, and hence may be shortened in the'presence of higher temperature or decreased relative humidity.
  • the directly treated area of the backing l is so determined and proportionedwith respect to the total area of thetcellulosesheet 8 that the resultant shrinking and tensioning eifect is well within the limit of rigidity of the backing and of the normal ten- Said sile strength of the sheet, while the untreated area is of such extent that, upon completion of the device, the sheet as a whole retains substantially its normal capacity-for expansion and contraction, at least to such degree that it can conform and adapt itself to wide variations in temperature and humidity conditions while still remaining taut and fiat.
  • the limit of rigidity of the backing 1, beyond which itwould warp is never reached, under any normal atmospheric or weather conditions likely to be encountered, including variations between the extremes of summer and winter conditions.
  • the untreated area of the cellulosic material is made suilicient to afford a full compensating efiect, while the shrinking action and flaccidity temporarily produced, solely in the marginal or other treated area, are adequate to bring the sheet initially to a predeterminedly tensioned and extremely smooth fiat state.
  • the desired result is obtained in the majority of instances by primarily treating the backing over a marginal area approximating in all not substantially more than abouton-seventh to one-third of the total area of the sheet as a whole. This proportion may be varied within limits dependent somewhat upon the overall size of the backing and the specific material employed for it.
  • the backing I accordingly is provided with an opening or cut-out portion l3 of a size adequate to permit the introduction or removal of the display material.
  • the opening I3 is of substantially the same size as such display object, but where a plurality of in-- dividually smaller pieces or oLjects are to be mounted or displayed, a relatively smaller opening, or a plurality of them, may be used.
  • connection means is provided for retaining the display piece in mounted position and for placing the backing as a whole under similar tension, derived from the contractile marginal shrinking action of the cellulosic sheet, as if the backing were solid, as in-Figs. 1 to 4.
  • Any suitable means may be employed for the purpose, one simple and inexpensive form being shown in Figs. 5 and 6, wherein I employ the same section, M, of the chipboard or other