US1342777A - Luminous indicating device - Google Patents

Description

V. C. THORNE. LUMINOUS [NDICATING DEVICE. APPLICATION man FEB. 5. 1917.

1";342,777. PatentedJune 8,1920.

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WITNESS IN VENT 0R A2471, am I V1670 c. TMf/YE UNITED STATES PATENT ,OFFICE.

VICTOR G. THORNE, OF NEW YORK, N. Y., ASSIG-NOR, BY MESNE ASSIGNMENTS, TO

THE COLD LIGHT MANUFACTURING COMPANY, INC., A CORPORATION OF COLO- RADO.

LUMINOUS INDICATING DEVICE.

Specification of Letters Patent.

Patented June 8, 1920.

Application filed February 5, 1917. Serial No. 146,644.

To all whom it may concern:

Be it known that I, VICTOR C. THORNE, a citizen of the United States of America, residing in the county, city, and State of New York, have invented certain new and useful Improvements in Luminous Indicating Devices, of which the following is a full, clear, and exact description.

My invention relates to appliances for attaching luminous indicating material to any object to be indicated. l

The invention relates to a practical and simple luminous device and means for securing such devices to such articles as screw heads, electric light switch plates, doors and in fact to any object which it is desired to indicate.

' Figure 1 represents a door plate having a key hole'therein', and a luminous device applied to the plate to locate the key hole. Fig. 2 is across section. through Fig. 1 showing the method of fastening the device to the plate. Figs. 3 and 4 are cross sections through two forms of the device. Fig. 5 is an enlarged cross section of the luminous device showlng the lumlnous materlal secured in place. Figs. 6 to 12 inclusive show modifications of the means for fastening the luminous devices to objects to be illuminated and will be generally described hereafter.

The luminous device 1 consists of a plate having a luminous material secured therein and a facing or window through which the luminous rays can pass and be visible. I prefer to use as the luminous device a holder or cup 2 made of thin flexible metal as brass having a celluloid facing 3 with a radium luminous material 4 firmly-secured against the inner surface of the celluloid. The entire device is flexible and will not crack or break the celluloid or disarrange the parts of the device. As shown in Fig. 5 the luminous material 4 is secured between the plate 2 and the celluloid facing 3, the flanges on the plate being turned down against the celluloid to hold the facing 3 against the plate 2.

This luminous device may then be arched to give it a convex shape as shown in Fig. 5.

The holder I prefer to use to attach this device to switch plates or door plate screws or nails, consists of a cup 6 with fingers 7 y or aflange 8 thereon. The cup 6 has a depressed or tapered portion 13 provided with tion 13 forming a seat 15 for a screw or nail head 16 and the attaching point thereof passing through the perforation 14.

The method of assembling the device is as follows:

The screw is placed into the'cup 6 and then driven home, the head thereof being accessible to a tool through the opening in the cup. The luminous device 1 is then secured under the flange 8.

In Fig. 6 flexible fingers 12 are shown on the cup 6 which may be bent down (as shown-in Fig. 7) over the luminous device. The bottom of the cup 6 is flat so that it may be soldered or glued to any object.

Fig. 8 shows wings 18 for securing the cup over objects to be indicated, (as shown in Fig. 9).

Fig. l0'shows the cup provided with pins 19 for securing it to Wood and like material.

The pins 19 are stamped out of the center of the cup. as shown in Fig. 11.

Fig. 12 illustrates a screw head 20 with a recess therein and the luminous button 1 secured to the recess. The slots 21 in the screw head and on each side of the button are elevated above the button and permit of access to the screw with a tool without injury to the luminous device.

' I claim:

1. In a luminous indicating attaching device, a cup, 2. seat in the cup to receive securing means, said securing means being separable from the cup and a luminous device secured in the cup over the securing means.

2. In a luminous indicating device, in

combination, a luminous element and means for attaching said element to an object to be indicated, said element comprising a luminous material o'na suitable carrier and a translucent facing over said material, said attaching means comprising an independent plate, a seat in the plate to receive securing means to attach the plate to an object to be indicated, the luminous element being secured to the plate, said securing means lying beneath the luminous element and covered thereby.

3. In a luminous indicating device, in combination, a luminous element and means for attaching said element to an object to be indicated, said element comprising a metal base and side walls upstanding from said base, a luminous material between said walls, a translucent facing over said material and secured over said luminous material by crimping said walls thereover, said'attaching means comprising an independent plate, a seat in the plate to receive securing means to attach the plate to an object to be indicated, the luminous element being secured to the plate.

4;. A luminous indicating device comprising a thin receptacle, said receptacle having a bott om and an uninterrlipted and continuous side wall and a luminous material in the receptacle,-a facing of flexible material in the receptacle and over the luminous material, the said side walls being continuous and being crimped downward to confine the said flexible material in the receptacle and the luminous material thereunder, said securing means being separable from the cupand the luminous device secured in the cup over the. securing means.

5. In a lumlnous 1nd1cat1ng device, a substantially round thin button comprising a thin base, upturned continuous side walls, a

translucent covering over the base and a luminous material between the covering and base, the whole comprising a unitary device, the luminous material being confined and firmly secured between the base and facing and thereby held against displacement or movement by contact with said facing, and

means for attaching said button to an object to be indicated, said means lying beneath the button whereby when the button is secured to an object the attaching means are covered thereby. v

6. A luminous indicating device, in combination, a substantially thin round flat button comprising a thin metal base, upturned walls from said base, said walls being continuous and uninterrupted, a luminous material between the walls, a translucent facing over the material, the walls being crimped down over the facing and in close engagement therewith, the luminous matemy hand.

VICTOR C. THORNE.

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