US1351935A - Self-luminous writing or reading device - Google Patents

Description

PL M. WILLISL SELF LUMINOUS WRITING 0R READINGDEVICE. APPL|cAT|oN F|LED Nov. 11, 1917; RENEwED JAN. 24. @920.

Patentedsept; 7,1920.

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UNITEDl STATES @PATENT .ort-'ICE'.7

PAUL M. lWILLIS, or ORANGE, NEW JERSEY, AssIGNon'ro Ynamur:y LUMNOUS MATERIAL .oonPonA'rIom or Naw Yomr, l1v.. Y., A .CORPORATION or DELA- l w I WARE.

. v 'SELF-LUDINOUS'VWRITING OR READING DEVICE f spebmcation of Letters Patent. Patente-(1 Sept. 7,19%(1 Application filed-November 17, A1917, Serial No. 202,606, Renewed January 24, 1920. Serial No. 353,814.

To aZZfwLom-z't may Concern 4 Y v Be'it known that ITPAUL M. WILLIS, a

i, citizen of the United States,J residing at Orange, in the county of Essex and State of New Jersey have invented a certain new i and useful elf-Luminous Writing or Read-`4 ing Device, set forth iifthe following speciication and illustrated 'in the accompanying drawings. u

This invention consists in a self-luminous writing or reading device-'by which notations can be, writtenv upon or read from a record sheet, in the dark, and without the.

aid of any light extraneous to the device. The object of the invention is to'provide 'such a devicelfor military service and general use. l

The invention is exemplified in the structure illustrated by in s in whichl n igure 1 is 'a longitudinal'sectional vlew the accompanying drawof one device 'embodying the invention, they section -being taken on kthe plane 1, 1v of Fig. l2; I

Fig. 2 is a transverse sectional viewlof the device of Fig. 1, on the section plane indicated'at 2, 2 of Fig..1; Y

Fig. 3y is an enlargedtransverse Sectional view of the self-luminous sliding yoke of Figs.1 and 2, also taken on the plane 2, 2 of Fig. 1; f

Fig. 4 is a transverse sectional ,viewon an enlarged scale, taken on the plane 4, 4 of Fig. 1;

Fig. 5 is a longitudinal sectional view of' another embodiment of the invention,l taken on the section plane5,v5 of Fig. ,6;

Fig. 6 is a transverse sectional view of the deviceof Fig. 5, taken on the Section plane ,6 6J of Fig. 5

Fig. 27 is an enlarged detail plan view of the clip 33 and 35, formed on the backplate 32n or holding the elastic band 34; and

Fig. 8 is an enlarged transverse ,Sectional view through a self-luminous y0ke` adapted for the device of Figs. 5, 6 and 7 but having a form of band-grip different from that of Figs. 5 and 6i In the devicek of Figs. 1, 2, 3 and 4, the

zoblong 'main platen 9 of suitable metal has its ends 11 and 13 rolled in wire-edge form, and has two rearwardly proj cting lugs '10 on its longer edges near its upper end, and two similar lugs 12 on the same platen edges tween thelspindle flanges 20 and the mounting lugs 10 or 12,9to prevent airee unwinding of the paper strip which has its ends in the slots of the opposite-spindles and forms rolls 15 and 16 on the spindles and runs from roll to roll over the rounded edges 11' `and13 of the xplaten. Suitable knurled heads such as 21 onythe spindles serve to` vturn them to draw the strip 14 in either direction. v,

A metalband or yoke 18 embraces the platen and slides upon it'from end to end between the opposite lugs l() and 12, and the front leg of this yoke is interposed between the platen'and the paper 'strip and is rendered self-luminous by:- a" suitable selfluminous paste' or other material 23 covered by a protective transparent or translucent membrane 22. Theself-luminous material may include an adhesive to secure the protective strip 22 which may be of celluloid. The self-luminous mixture 23 may be itself transparent `ortranslucent and the surface f of the yoke 18 on which it adheres maybe rendered white o r light-reliective to utilize the light rays falling upon itfrom theselfluminous material.

A stationary celluloid or other transparent sheet 17 may be ccemented or otherwise suitably connected at its endsnto the front side of the platen 9, over the sliding selfluminous sheet to further protect the same 'f and also to shield the paper strip from con tact with the edges of the self-luminous sheet which might otherwise/cause the point of a pen\or pencil to break through the paper in the act of writing.

The self-lunriinousv material of the sliding yoke 18'will preferably be of radio-active character which is expensive.

l The scheme of carrying this self-luminous material on the sliding yoke makes it .possible to illumine the paper strip by transmitted light successively along all portions of its length traversed by the sliding.

movement of the yoke and without employing such an amount of self-,luminous mateyoke thus facilitates writing on or reading rial ah would be necessary to provide equal illumination of all said paper areal at one time. Although the sliding self-luminous from successive portions of the pa erstrip, the self-luminous area beneath t e paperI may be immovably fixed on the platen and successive portions of the paper may .be illumined by recourse solely to the turning of the paper spindles.

In the device of Figs. n, e, 7 ne s, @leaf pad 30 of translucent or transparent leaves 1s mounted on an-ordinary card back. 28-by a flexible cloth binding 29 glued to the, card back and vto the upper edges of the' 'ad leaves; -vThe leaves may be perforate at 31 for 4tearing oifalong a fline parallel-to the binding. w

A metal plate 32 lies transversely across the rear surface of the card 28 and has its ends bent forward to embrace the edges of "the card, so that the plate may freely slide along the length of the card. A'n elasticl band 34 passes along the back of the plate 32 through retaining - clips 33 and 35 formed integrally with the plate, and thence ex'- tends' forward across thel thickness of the pad -to the ends of the self-luminous slide 36 lto which the ends of the band aresecured by suitable. clips 37 formed of the metal of "the slide. In lieu of the clips 37, the clench joint 40 o f Fig. 8`may be employed. The front side of thel slide 36 is rendered self luminousl byA a-nl adhesive self-luminous paste 38 compressed between the slide and a transparent protective covering 39. The

front 'surface of the slide may be light clamped lightly on the card back 28 and the 1. A luminous Writing or reading device pad leaves remaining beneath the slide.

flhe inventive idea may be embodied in various other forms' within the skill of artisans, and still other adaptations may be inventively devised, Jwithin the scope of the,

following claims:

comprising a base member, means for holding a record sheet thereon, and a self-luminous sheet slidably connected with thc base member in position to slide under successive r 155 -portions of the record sheet, whereby to successively illuminate said record sheet` portions by transmitted llght.

' beneath-the pad or book leaf to be illuminated, and a yoke connected with said selfluminous sheet and adapted to inclose other 4 leaves of the pad orbook between said yoke and self-luminous sheet while said sheet is in place beneath said leaf to be illuminated.

4. 'A device for illuminating pad or book 75 leaves by transmitted light 'consisting in a self-luminous sheet adapted to be inserted beneath the pad or book leaf to be illuminated, and an elastic yoke connected with lsaid self-luminous sheet and adapted' to 80 clamp other leaves of the pad or book between said yoke and self-lumindus .sheet while said sheet is in place beneath the said e leaf to be illuminated. 'f

5. A device for illuminating pad or book leaves by transmitteddight consisting in a self-luminous sheet of lesser area than the pad or book leaves and adapted to slidel beneath the pad or book leaf to be illuminated, and an elastic yoke connected with said self-luminous sheet and adapted to lightly clamp other leaves of the pad or book between said` yoke andself-luminous sheetA while said sheet is in illuminating position beneath the ,said leaf to be illuminated, and said yoke being also adapted to slide rela` tive to its said leaves thus clamped whereby to successively` illuminate successive portions of said leaf to be illuminated.

I n testimony whereof I have hereunto '100 i afliied my signature. f

-; PAUL M. WILLIS.

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