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Número de publicaciónUS1833498 A
Tipo de publicaciónConcesión
Fecha de publicación24 Nov 1931
Fecha de presentación3 Sep 1929
Fecha de prioridad3 Sep 1929
Número de publicaciónUS 1833498 A, US 1833498A, US-A-1833498, US1833498 A, US1833498A
InventoresTheodore C Prouty
Cesionario originalMetlox Corp Ltd
Exportar citaBiBTeX, EndNote, RefMan
Enlaces externos: USPTO, Cesión de USPTO, Espacenet
Illuminated character
US 1833498 A
Resumen  disponible en
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Descripción  (El texto procesado por OCR puede contener errores)

NOV. 24, 1931. c PRQUVTY 1,833,498

ILLUMINATED CHARACTER Filed Sept. 3. 1929 INVENTOR Them/ore GP/wz/zy ATTORNEY Patented Nov. 24, 1931 urrsnsTATEs PATENT OFFICE THEODORE C. PROUTY, OF HERMOSA BEACH, CALIFORNIA, ASSIGNOR TO METLOX COR- PORATION, LTD., OF MANHATTAN BEACH, CALIFORNIA, A CORPORATION OF CALI- FORNIA ILLUMINATED CHARACTER i Application filed September This invention relates to illuminated signs formed by individually illuminated characters, and especially to such characters that are illuminated by incandescent electric lamps.

It is now well-known to form an illuminated character by the aid of a number of ter the presents a sharp, definite outline.

L It another object of my invention to 11nprove in general, illuminated characters of the kind discussed.

Preferably, I employ a ceramic character as a support for the lamps; this results in the advantage of securing a good looking day- .ig t si n; and furthermore, it provides a highly glazed surface that can be so arranged with respect to the lamps as to impart the desired bright and sharp luminescence to the character.

My invention possesses many other advantages, and has other objects which may be made more easily apparent from a consideration of one embodiment of my invention. For this purpose I have shown a form in the drawings accompanying and forming part of the present specification. I shall now proceed to describe this form in detail, which illustrates the eneral principles of my invention; but it is to be understood that this detailed description is not to be taken in a limiting sense, since the scope of my invention is best defined by the appended claims.

Referring to the drawings:

Figure 1 is an elevation of a character embodying my invention; and

Fig. 2 is an enlarged sectional view taken through the letter.

In the present instance, I show a letter A as embodying the features of my invention.

3. 1929. Serial No. 390,145.

This letter is made from a ceramic product 11, such as clay or porc lain, having a webbed or channelled section, as shown most clearly in Fig. 2. Thus the side flanges 12, 13 define a groove or channel 14 that forms a visible outer surface of the character. A corresponding groove 15 at the back of the letter serves to accommodate the wiring, sockets, and other elements needed for supplying current to lamps such as 16 disposed in channel 14:.

The central Web 17, separating the channels I l and 15, can conveniently serve as a support for the lamp sockets. Thus a series of spaced apertures 18 can be provided in the web l'l', into each of which can be fastened a socket member 19. This socket member is made from insulation material and formed to be inserted from the back of the character 11. It is held in place in any appropriate manner,

asby a strap 20 extending alongside the socket in grooves 21 and through aperture 18. Thls strap 1s made from a stiff Wire, so that by bending its ends over the edge of the aperture 18, as indicated at 22, it can hold the socket 19 in the position shown.

The channel 1% is purposely made so deep that globe 16 does not substantially extend beyond the flanges 12, 13. Furthermore, the surface 0" the channel 14 is preferably glazed so as to act as a reflecting surface. The exposed upper end 23 of globe 16 is painted or frosted preferably with tl e same color as that of the glaze in channel 14, and in such a way that some light nevertheless passes through the tip. However, the glowing filament does not form any annoying bright spot.

Most of the light is thrown into the channel 14, and is reflected from the surfaces thereof. The reflected rays pass out somewhat as indicated at 24, and there is little diffusion. This results from the fact that there is little opportunity for any direct light to extend beyond the edges of the flanges 12,

The effect of this type of character illumination is novel, as it presents a clear cut outline even at a distance. The character is perfectly legible and distinct. I attribute this to the manner in which I confine the direct bright rays to the channel. 14, and permit only reflected light or dillused light from tip 23 to proceed from the eharacteiz I claim: v 71. An illuminated character comprlslng a ceramic support having a glazed channel forming a reflecting surface, said channel conformin to the form of the character and formed-by a pair offianges and a connecting Web, and a series of electric lamps in the channeland'supported by the aid of the Web so as to extend outwardly with respect thereto,

' each of the lamps having its tip "portion painted with a material having a color sub-i stantially similar to the glaze whereby direct bright rays will be emitted only from the un painted portion of the-lamps, and said channel being deep enough so that the lamps are substantially entirely disposed therein where by the lamps emit direct bright rays only to- Ward the reflecting surface.

2.- An illuminated character comprising a support having a glazed channel forming a naaflecting surface, said channel conforming to the form of the character andv formed by a pair of flanges and a connecting Web,-and a series of electriclamps in the channel-[and supported by'the aid of the Web so asto ex;-

tend outwardly with respect thereto, each of the lamps having its tip portionpainted With a material having-a. color substantially simi- 7 lar to zthe glaze Wherebydirect bright r.ays r WILL be: emitted only from the unpainted vportion ot' the'lamps, and said channel being deep enough so that the lamps are substantially entirely d sposed therein whereby. the

lamps emit direct bright rays only toward the reflecting: surface;

In testimony. whereof I have hereunto set my hand.


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Clasificación de EE.UU.40/550, 362/812, 362/307
Clasificación internacionalG09F13/28
Clasificación cooperativaG09F13/28, Y10S362/812
Clasificación europeaG09F13/28