US1289076A

US1289076A - Lamp-guard.

Info

Publication number: US1289076A
Application number: US3218715A
Authority: US
Inventors: Carl B Auel
Original assignee: Westinghouse Electric and Manufacturing Co
Current assignee: CBS Corp
Priority date: 1915-06-04
Filing date: 1915-06-04
Publication date: 1918-12-31
Anticipated expiration: 1935-12-31

Description

c.; B. AUELF LAMP GUARD." APPLICATION FILED JUNE 4, 1915.

Patentd Dec. 31,1918.

INVENTOR Carl B. A u@/ WITNESSES ATTORNEY PATENT @Flli lltlm C1 EL B. AUEL. OF WILKINSBURG. PENNSYLVANIA, ASSIGNOR 'IO WESTINGHOUSE ELECTRIC AND MANUFACTURING COMPANY, A CORPORATION OF PENNSYL- VANIA.

LAMP-GU ART).

To whom it may con ern lle it known that I, CARL B. AimL, a citizen oi" the United States, and a resident of llilkinsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Lamptluards. of which the following is a speciiication.

invention relates to guards or looking devices for incandescent lamp bulbs, and it has for its object to provide a device that shall be simple and inexpensive in construction and which will he efi' ective in prevent ing the unauthorized removal of incandescent lamp bulbs from their sockets.

According to the present invention, T provide a lamp guard or locking device that is particularly adapted for use in connection with lamps provided with protecting shades. A lamp guard constructed in accordance with my invention may be readily applied to the lamp bulb without removing the shade.

1n the accompanying drawings; Figure 1 is a view, partially in section and partially in side elevation, of a lamp socket supporting a. shade and an incandescent lamp and provided with a lamp guard constructed .in accordance with my invention; Fig. 2 is a plan view of the parts shown in Fig. 1; Fig. 3 is a fragmentary view in side elevation at right angles with respect to the parts in Fig. 1; Fig. 4 is an elevational 1 of the parts shown in Fig. 1 and showmodification of the lamp guard; Fig. is a fragmentary view in. side elevation and right angles with respect to'the parts shown in 4, and Figs. 6 and 7 are fr gmentary views showing portions of the to lamp guard.

it. lamp socket 1 of any desired form support an incandescent lamp bulb 2 that is in threaded engagement with the socket 1 and a shade 3 that partially incloses the lamp bulb The shade 3 comprises a bowl shaped member 4 formed preterably of glass or any other suitable material. and a metal lie ii that is attached to the member id is suitably supported by the socket 1. lamp guard 53 comprises a 11min body on 'i that is adapted to engage the bulb and a plurality oi radial extensions 8.

The body portion 7 comprises a pair oi" semi-elliptical portions 9 that are disposed at at an angle with respect to each other. as

A. (l L Specification of Letters Patent.

Application filed June 4. 1915.

Patented Dec. 31. 1918.

Serial No. 32,187.

best shown in Fig. The length of the minor axis of the substantially elliptical figure formed by the portions 9 is somewhat less than the greatest diameter of the bulb 2. The lamp guard 6 is held concentrically, with respect to the bulb 2, by means of the radial extensions 8 and the shade member 4. The shade member 4 is provided with oppositely disposed alined openings 10 which are adapted to receive the radial extensions 8. The radial extensions 8 are prevented from lateral movement with respect to the bulb 2 by means of a bent-over portion 11 provided at the end of one extension 8 and a. locking device 12 provided at the end of the other extension. The locking device 12 comprises a cupshaped member 13 pro vided with a central opening to receive the end of the extension 8 and a nut 14 adapted to be in threaded engagement with the said extension. The nut 14 may be turned downwithin the cup shaped member 13 by means of a suitable socket wrench and thereby retain the lamp guard firmly in position.

Referring now to Figs. 4 and 5, the guard member 6 comprises a body portion formed of several circular turns 15 the mean diaine r of which is less than the greatest diameter of thebulb 2. The guard member 8 is preferably formed of wire that may be readily bent but which possesses suflicient rigidity and further comprises radial extensions 16 which are formed by continuation of the circular turns 15. The extensions 16 are inclined downwardly to clear the outer periphery of the globe member 1 and are further bent to constitute upwardly extending vertical portions 17 and inclined portions 18, as best shown in Fig. 6. The inclined portions 18 severally extend up wardly and adjacent to that portion of the lamp socket 1 aboye the ring member 5 of the shade 3. The inclined portions 18 respectively terminate in an eye portion 19 and a semi-circular portion 20 that is adapted to embrace substantially one-half of the periphery of the socket 1, as best shown in 6. The portion 20 terminates in an enlarged portion 21 that is provided with threaded opening 22. A second semi-circular portion-23 is pivotally secured to the inclined portion 18 by means of the coacting eye portions '24 and 25 and terminates in a circular lug portion 26. The lug portion '26 is provided with a hollow cylindrical extension 27 and a central opening 28 adapted to be in alinement with the opening 22 of the enlarged portion 21. A

bolt 29, extending through the opening 26 and the eye portion 1%), is in threaded engagement with the opening 22 and serves to prevent the semi-circular portion 23 from pivotal movement with respect to the portion 18.

' From the foregoing, it is apparent that it" will be impossible to remove the lamp guard without the use of a socket wrench especially adapted to engage the" nut 14: or the bolt 29. Furthermore, the lamp guard may be readily applied to the incandescent lamp bulb without removing the shade and with a minimum amount of trouble.

While I have shown my invention in a simple and preferred form, it is not so limited but is susceptible of various minor changes and modifications within the scope,-

of the appended claims.

I claim as my invention:

1. A guard for incandescent lamp bulbs directions from the said body portion and locking means associated with at least one of the said supporting members.

3. A guard for incandescent electric lamps comprising a body portion adapted to engage and hold the end of a lamp bulb, two

straight supporting members extending in opposite directions from the said body portion and locking means associated with at least one of the said supporting members, the said locking means comprising a nut in screw-threaded engagement with the end of the said supporting member and an annular protecting member surrounding the said nut.

4. An illuminating device comprising an incandescent lamp socket, a shade carried by the said socket and provided with two oppositely disposed openings, and a lamp guard comprising a body portion adapted to encircle the end of the lamp bulb held in the said socket, two straight supporting members extending in opposite directions from the said body'portion and through the said perforations in the said shade, and locking means associated with at least one of the said supporting members.

5. An illuminating device comprising an in candescent lamp socket, a shade carried by the said socket and provided with two oppositely disposed openings, and a lamp guard'com prising a body portion adapted to encircle the end of the lamp bulb held in the said socket, two straight supporting members extending in opposite directions from the said body portion and through the said perforations in the said shade, and locking means associated with at least one of the said supporting members, the said locking means comprising a nut in screw-threaded engagement with the end of the said supporting member and an annular protecting member surrounding the said nut.

In testimony whereof, I have hereunto subscribed my name this 26th day of May 1915.

CARL B. AUEL.