US1149560A - Ventilated fixture. - Google Patents

Description

' T. w. DIXON.

VENTILATED FIXTURE.

APPLICATION FILED APR. 19. 1915.

1,149,560. Patented Aug. 10,1915.

COLUMBIA PLANOGRAPH co., WASH INOTON. p. c.

' rinrrnp srarns rarnnr orrrcn THOMAS W. DIXON, OF ST. LOUIS, MISSOURI, ASSIGNQR OF ONE-HALF TO WIL'BUR II.

WHITE, OF ST. LOUIS, MISSOURI.

VENTILATED FIXTURE.

Specification of Letters Patent. Patented Aug, 10, 1915.

Application filed April 19, 1915. Serial No. 22,394.

To all whom it mag concern Be it known that I, THOMAS VV. DIXON, a citizen of the United States, and residing at the city of St. Louis and State of Missouri, have invented a new and useful Ventilated Fixture, of whichthe following is a specification. r r v This invention relates to ventilated fixtures for electric lamps, andit consists of the novel construction, combination and arrangement of parts and features hereinafter shown, described and claimed.

, Myimproved fixture consists of a socket supporting, member having a shield or protector in connection with the lower. portion thereof, a globe support supported below and protected by the shield or protector and provided-with ventilation openings whereby hot air from the globe or lamp is released fromaround the upper portion of the lamp, and novel supporting devices for supporting the globe support below the shield or protector so as to leave a relatively large open space for the passage of the air between the protector shield and the globe support so that the cooling atmosphere may freely circulate between said parts and from the globe and its support.

Embodying the above and many other improved features of construction and arrangement, my invention attains many desirable objects and results, all of which will bemade apparent to those skilled in theart to which this invention relates by thefollowing detail description whereinreference is made to the accompanying drawings in which 1 v r p v Figure 1 is a side elevation of a ventilated fixture constructedin accordance with my invention. Fig. 2 is a' similar view with the socket support and the protecting shield in section in order to illustrate the relative arrangement and position of said partswith respect to the globe support.

removed from the support.

Asillustrated in the accompanying. drawings the preferred embodiment of my invention includes a tubular socket support 1 Fig.v 3 is aninverted view of the fixture. Fig. 4 is a portion '9.

supportingpipe; Q in which, areinclosed the wires 3 which'ilead tothe two usual contactvmembers in the lamp socket 4. The socket 4: may beof any. usual or preferred construction and is received in the tubular support 1, being attached thereto'by screws 5 ..which. pass through holes in the end wall of; the socket, through heat non-conducting blocks 5, andengage in threaded holes in bossesfi integral withrthe upper end of the support 1. As usual the socket 4: is of suitable non -conducting material so that the metallic parts of the fixture are insulated from the wires. The lamp may be connected to the socket by theusual threaded connection (not shown). The blocks 5 support the socket away from the end of the member 1, thus providing a space for the circulation of air entirely around the socket.

The lowerend ofthe support 1 is provided with a circumferential flange 7 at its lower end-from which'extend a number of lateral projections 8. A shield, preferably composed of sheet metal in the form of a disk, is supported at the lower end of the member 1. The shield preferably includes a flat portion 9 bearing against the flange 7 and. the projections 8 and provided with a central opening through which the socket 1 extends and an obliquely disposed portion .ll substantially in the formof a truncated cone of which the fiat'portion 9 forms the upper end. Below the shield 911 the globe support is secured, said support comprising The flange 15 placed between the flange 15 and the flat The supporting members also pass through the flange 15 and have releasable nuts 18 screwed on the lower ends thereof and clamping the-flangel5 against the members 17 and supporting all of the elementsinrigid connection with the socket support 1. The members 17are preferably of non-conducting material so that the heat from the globe support will not be thereby conducted to the upper metallic parts of the fixture. The members 17 support the parts so as to form an open space 19 around the lamp socket for the free circulation of the air, so that the cooling atmosphere may prevent the parts from becoming heated to an excessive extent.

The rising portion 1 1 of the shade support is provided with numerous holes 20, and the flange 15 is also provided with "numerous holes 21, all of which constitute passages for the circulation of the'air into and out of the globe. It will be observed that these air circulating passages "are adjacent to the socket, the point of maximum heat of the lamp, so that thecoolingcurrents of air are constantly applied where .they'are most needed.

The shield 911 above 'the passages'constitutes a guardto prevent entrance of foreign substances andinsects, since the lower edge of the shield is in a plane substantially below the large passage 19. Obviously, the-shield may be extended to any desired'extent, sothat the "principle' of the invention includes a device or guard for thoroughly protecting the ventilation open- IIIOS.

The annular part 12 of the shadesupport is provided with threaded bearings '22 in which the screws 22 areoperatively mounted in annular series so that said screws may be manipulated to engage the globe 23 and support the same in connection with the fixture. The screws are provided -with manually engageableheads or kncbs whereby they maybe readily engaged with or released from the globe in the well understood manner.

By the construction illustrated and described the "globe 23 and the lamp socket and also the lamp have free communication with the open atmosphere. The provision. of the holes 20 and '21 in diflerent planes,

and'the open space '19 above "the shade supporting member permit the hea'tedair to pass from the fixture, and cooling currents of air to come into contact with thefheated parts of the fixture at all times. In "this way excessive heating of the fixture is obviated. The shield which is supported above theventilation openings also serves as a protector to prevent rain-and 'snowand other elements from entering the ventilation openings. The obliqueportion of the shield causes the objects and elements falling thereon to drop below the ip'lane of the ventilation openings, and the portion '13 of the globe support'deflects the'o'bje'cts or=elements away from the'open end of the globe.

It will be understood that there may be minor variations 'in theconstructionand aradj ustment aforesaid.

2. A 'fixture'comprising asocket supporting member, a shield having oblique upper surfaces supported at the lower end of said socket supporting member, a globe support below said shield and having passages there- 'through, bolts supporting said shield and said'globe'support from said socket supporting member, and spacers interposed between said shield and said globesupport for holding said parts in spaced adjustment to enableair to pass into said globe support.

3. A device of the character described,

comprising a socket supporting member, a

socket supported by and "extending below said member, a shield at the lower end of said member, a globe support below said shield, means for supportingsaidglobe support and said shield by said supporting member, spacers interposed between said shield and said globe support, passages between said shield and said globe support around said socket, and means for support inga globe from said globe support.

4. A device ofthe character described, comprising a socket supporting member, a socket supported'by said member, a shield below said member, a "globe support, means for supporting said shield and said globe support from said supporting member,

spacers interposed between said shield and said globe support and forming passages between said shield=andsaid'globe support around said socket, passages through said globe support below said first-named pas sages, and'screws for supporting a globe in connection with said globe support.

5. A ventilated electriclight fixture, comprising a hollow memberadapted to receive the socket, a lamp socket within said hollow member, non-conducting elements between said socket and said member, there being an open space between ,said socket and said member on all sides of said socket, a shield supported below said member, a globe support below .said shield, and air passages through said globesupport and between said globe support andsa'id shield communicating withthe space around said socket.

(S. A ventilated fixture for electric lights,

comprising a *hollow support, a socket within said support, non-conducting elements holding said socket out of contact with said support, there being an open space on all sides of said socket within said support, a globe supports below said first-named support, passages through said globe support connnunicating with the open space around said socket, and a shield above said globe support below said first-named support ex- 10 tending obliquely downwardly and outwardly in a direction away from said passages. 1

In witness whereof I have signed this specification in the presence of two subscribing witnesses.

THOMAS W. DIXON.

Witnesses:

L. G. KINGSLAND, R. M. LAWRENCE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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