US1036064A - Outdoor electric-lighting fixture. - Google Patents

Description

R. B. BENJAMIN. om'nooa ELECTRIC LIGHTING FIXTURE.

APPLIOA'I'ION'I'ILED- JULY 26,1909.

Patented Aug. 20, 1912.

Ill)

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L oo'rnoon ELECTRIC-LIGHTING FIXTURE.

' Specification of letters Patent. f Patented Aug. 20, 1912.

Application filed Ju1y.26,'1909. Serial n. 509,529.

To all whom it may concern:

Be it known that I, REUBEN B. Bn sqamzv, a citizen ofthe United States, residing at Chicago, inthe county of Cook and State of Illinois, have invented new and useful Im-' provements in Outdoor Eleet-ric-Lightinlg Fixtures, of which the following is a in clear, concise, and exact description, reference being had to the accompan ing drawing, forming a part of this speci cation.

This invention relates to improvements in electric lighting fixtures especially ada ted for outdoor use or for use in positions w 1816 the device is ex osed to the weather.

The object of the invention is to provide a device which is of pleasin a pearance which affords protection for t e amps an which is so constructed that the lamps are made readily accessible for cleaning, replacement and the like.

1n the accompanying drawings, Figure 1 is a vertical longitudinal sectional view of a device employing the features of my invention and adapted for the reception of four incandescent lam s; Fig. 2 is a lan view of a member wiiich is employe to hold the protecting globe in position; and Fig. 3 is a bottom p an view of the same, HlIIOgViDg also a portion of the bottom of the g e.

In the several figures of the drawings, 5 is a pipe, the upper end of which is screw threaded and screws into a metallic member a which is carried by an insulatin block 7 secured to the upper side of a meta lie cross arm 8. This cross arm carries at its ends insulators f) to which may be brought a air of feed wires. The feed wires will cad from the insulators 9 to the insulating block 7 and will pass up through openings 10 in the insulatin block to binding screws 11. From these binding screws a pair of wires will lead down throu h the pipe 5 to the binding terminals 0 the lamp-receiving sockets as hereinafter explained. The lower end of the pipe 5 screws into a threaded opening in a tripod or crowfoot 12, the 1" out of which are secured to the upper side of a plate 18. The plate 13 is formed with openings thercthrough correspondin in number to the number of lam s whici the device is designed to carry. ach of these oponin s is 0 suitable size and shape to receive tie reduced front end 14 of a lamp socket such as is ordinarily employed on electric signs. These sockets 15 are secured to the upper side-of the plate 18 with the portion 14 of each; socket extendin downward throu h the plate, the sockets being held in lace means of screws 16. Each socket is provided with suitable binding screws or the like and the wires which extend down through the pipe 5 will subdivide and extend to the inding screws of the several sockets in a well understood manner which need not be illustrated. On the under side of the plate 13 is secured a second crowfoot 17, the feet of this tripod being secured to the late 13 by the same rivets or screws whici hold the plate 13 to the feet of the upper tripod. A pipe 18 has its upper end screwed into the tripod member 17 and is provided upon its lower end with means for supporting in position the lobe 19 which protects t to lamps 20 when t 0 same are inserted into the sockets of the device. A reflector 21 is supported in position over the lamps b means of a collar 22 which surrounds t e pipe 18 and is held in position by a set screw 23 which clamps the collar to the pipe. The reflector 21 is formed with a central aperture through which the pipe 18 extends, and is also formed with openings to receive the buses 24 of the lamps.

The lamps that will ordinarily be used in this device are tungsten or other metal-filament lamps having bases of larger diameter than the threaded plug portion which screws into the socket. It will be observed that the enlarged base 24 of each lamp is nearly all concealed when the lamp is in position, the lass body of the lamp extendin almost to the surface of the reflector 21, an that the lamp, when it is to be inserted into the socket, must first be passed up through the opening in the reflector. This arrangement affords a device of pleasing appearance, and moreover, the efiiciency of the reflector and the lamps in light-giving and reflecting power is router t ion with other arrangements in w iich the lamp is at a con siderable distance below the reflector.

Extending over the sockets and the reflector 21 is a combined hood and reflector 25 which is substantially bell-shaped and which extends for a considerable distance beyond the globe If) on every side. This hood is drawn in at its upper portion to a diameter which is just great enough to accommodate the sockets 15, whereby it plans ing appearance is given 0 this part of the fixture. To further en hnee the appeae ance of the device, a secondary hood or cap 26 is disposed upon the top of the hood and extends up to the cross bar 8. -The cap 26 has its lower end flanged in\\'airdly at and the ho0d'25 has a raised portion 28 which extends up into the cap for a short distance to hold the same in aliuement.

"Extending around the outer edge of the inner'reflector 21 is a ring '2?) provided with perforations 30, these perforations being intended to aiiord ventilation for the space. within the globe 19; which space becomes heated when the lamps are in operation.

, The globe is so supported in position that it held in its raised position.

may be lowered when it is desired to gain access to the lamps for the purpose of replacing or" cleaning same. The means for accomplishing this are such that the globe is supportedjiiiim lowered position while the lamps arebeing cleaned or replaced, and

when it is desired .to restore the globe to its normal position'this may be easily done by lifting the globe until its upper edge passes into 'the ring 29, whereupon by manipulatinga suit-able locking device't-he globe is For this purpose Iprovide' an extension rod 3Ov which; is arranged to slide up and down m-the pipe 18,

I this rod'having a head 31 upon its upper lot 'the pipe.

end which fits the inside of the pipe 18, thelower end of the rod being screw threaded at '32. A slide bearing for the rod is provided near the lower end of the pipe 18, this bearing consisting of a ring 33 held in place by rivets 34 whichextend through the wall The globe 19 has a central opening'inits under side through which extends the pipe 18.. A ring-like member 35 extends around the edge of the opening in the globe and has an externally threaded neck 36 which extends up through the opening. Screwed upon this threaded neck is a clampin ring 37. The lower end of the pipe 18' 1S externally screw threaded, a nut 38 being arranged to screw upon this end of the pipe. The passage through this nut is' enlarged at' its upper end and receives a 5}; downwardly extending neck 39 which is I rovided on the member 35, so that when the nut 38 is screwed up into position on the lower end of the pipe the member 35, and the globe to which this member is secured, are sustained by the lower end of the pipe. The opening in the nut 38 is made smaller at its lower end and is threaded to receive the threaded end 32 of the rod 30. A pair of set nuts 40 and 41 lock the nut 38 firmly in position on the rod 30. The member 85 is provided with suitable passages 4-2 for the admission of air into the lower part of the space inclosedby the globe 19. These holes, in combination'with the holes 1n the ring 29, at the upper part 011 the globe,

nosepaa are provided to atiord suitable ventilation for the space occupiedby the lamps.

'When the globe is to be lowered, the -un screwing ot' the nut 38 frees the same from the threaded lower end of the pipe 18 and permits the rod 30 to slide down through the pipe 18 until. the head 31 of the rod rests upon the ring 33. The globe is now suspemtled in position at such a-disl'ance below the lamps as to permit the same tobe'readily reached. lvlaen the globe is to be removed altogether this may be easily accomplished by first ui'iscrewing the nutaO from the lower end of the rod 32 and removing the same. If the member 38 be now' unscrewed from the lower end of the pipe 18 the globe, together with theclamping members 35 and 37, may be slipped oil the end of the rod 30. It a new globe is to be substituted for an old one the clamping members 35 and 37 may be easily removed from the old globe by unscrewing the member 37 from the threaded neck of the member 35.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

'1. The-combination with a plurality of lamp-receiving sockets, and means for supporting said sockets, of'means for removably supporting a globe surrounding said sockets, said globe-supporting means includ ing a pipe extending vertically downward from said socket-supporting means, a member adapted to be removably secured to said pipe and to engage the globe to support the same around said sockets, a rod vertically guided within said pipe and'secured to said member, and means for limiting the downward movement of said rod.

2. The combination with a plurality of lamp-receiving sockets, and means for supporting said sockets, of means for supporting a globe around said sockets, said globesupporting means including a pipe extending vertically downward from said socketsupporting means, a member removably secured to said pipe and adapted to engage the globe to support the same around said sockets, a'rod vertically guided within said pipe, -means rod to said member, and means for limiting the downward movement of said rod.

3. The combination of a pipe, a cross arm secured to said .pipe, an insulating block above said cross arm, binding posts carried by said block, a canopy surrounding said pipe, a crowfootat the lower end of said pipe, a plate carried by said crowfoot and having lamp-receiving openings, sockets upon the upper side of said plate registering with said openings, a pipe extending downward from said plate, globe supporting means telescoping with said rod, and a hood extending over said sockets and globe. I i. The combination of a plate having for removably securing said 3 openings, lamp-holders secured upon the upper side of said plate in registerwith said openlngs, a reflector below said plate and provided with openings registering with the openings of said first-named plate, a pipe extendlng downward to a point below said refiectoiy'a rod telescoping into said pipe, a

ers carried by said pipe, and a reflector below said lamp holders, said reflector having openings for the passage of lamp bases to said lamp holders.

6. The combination of a pipe, a reflector carried by said pipe, lamp holders above said reflector, a globe below said reflector, means for normally sustaining said globe immediately below said reflector, and means telescoping with said pipe for sustaining said globe in a. lower position at will to aflord access to the lamps.

In Witness whereof, I have hereunto subscribed my name in the presence of two wit.- nesses.

- REUBEN B. BENJAMIN. Witnesses CHARLES G. Corn,

CHARLES L. HOPKINS.

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