US1080211A

US1080211A - Lamp-shade.

Info

Publication number: US1080211A
Application number: US76331613A
Authority: US
Inventors: James Gilsey
Original assignee: Individual
Current assignee: Individual
Priority date: 1913-04-24
Filing date: 1913-04-24
Publication date: 1913-12-02
Anticipated expiration: 1930-12-02

Description

J. GILSEY.

LAMP SHADE.

, 1 I AP PLIOATION FILED APR. 24, 1913. Patented Dec. 2,

2 SHEET S-SHEET l.

CDLUMBIA PLANOURAPH C0 WASHINGTON, D. c.

J. GILSEY.

LAMP SHADE. APPILIUATION FILED APR. 24, 1913.

1,080,21 1 Patented Dec. 2, 1913.

2 SHEETS*SHBET Z.

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COLUMBIA LANDURAPH CD.,WASH|NUTON. D. c.

JAMES GILsEY, or CINCINNATI, oIIIo.

LAMBSHADE.

specification of Letters Patent.

Patented Dee. a, 1913.

Application filed April 24, 19-13. Serial No. 763,316.

To all whom t may concern-r:

Be it known thatl, JAMES GILSEY, a citizen of the United States, residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Lamp-Shades, of which the following is a specification.

My invention relates to improvements in lamp shades for shading lamps such as gas lamps, electric lamps, and lamps of other character, and has for its object the provision of a shade of this `character provided with an inner looking-glass reflector which surrounds the lamp, and is so constructed that a current ofv air is created by the heat of the lamp,fthe currentV of air making direct contact with the silvered back of the looking-glass reflector for cooling the same, for avoiding vaporization ordisintegration and consequent deterioration of or injury to the reflecting` properties of the lookingglass reiiector, due to the heat ofthe lamp; and, further, the provision of novel means for holding the looking-glass reflector in place.

The invention will be further readily understoody from the following description and claims, and from the" drawings, in which latter:

Figure 1 isa central vertical section of my `improved device, showingthesame in connection with an inverted gas mantle lamp, the latter and its `connections `being shownin sidefelevationfand partly broken away. Fig. 21is a `bottom view of'my` improved device, showing the'flamprirr position.` Fig. 3 isatopplan view of thesame, partly broken away. Figli 4 vis a vertical cross-section of my improved device,v` partlyv broken away, and taken onV the line4-y-4lfof Fig. 3. Fig. 5 isa bottom horizontal -section of my improved device, taken on fa line correspondingto' the line 5-5 7 of Fig. 1. Fig. 6 is an edge detail ofthe'lowerend of one lof the corners 'of myfv improved device, viewedl in the direction of thearrow 6, of Fig.- 4. I Fig. 7 is an edge detail of the upper end rof oneof thecorners of myimproved device, viewed in the direction of the arrow 7 of Fig. 4; and, Fig. 8'isa cross-sectional detail,1showing one of the'ribs,ta`ken on the line 8 8 lof F1g..4.

My improved device is intended for use in'connection with a usual lamp,` which is illustrated as Van invertedI incandescent gasVV lamp311, comprising a body-12, a mixture pipe 13, an incandescent mantle 14, surrounded by the protecting globe 15, the mixture' pipe being fed through a usual gas regulator-valve 16, feeding into a 'mixer 17, for mixing the gas and pair, the gas being supplied through a suitable valve 18 and fed through a gas pipe 19. These parts may be of ordinary construction and may be substituted by suitable parts of an electric or other lamp and feeding devices therefor.

My improved shade comprises an outer wall-21; shown as rectangular in cross-section. This outer wall may be formed by sides22, shown slanting, supported byribs 23. There is preferably one of these ribs at eachc'orner of the shade.

The ribs are shown formed by a top 24 extending longitudinally of the corner. TheY metal of the rib under the top is bent inwardly at each longitudinal edge of the top, forming a bend 25, and is provided withV a reverse bend 26, there being a groove 27 between the bend and reverse bendat ea'chside of the rib, the grooves beingA arranged to receive the side edges 28 of the sides 22. These side edges may if desired be' suitably secured insaid grooves, as by soldering. Below the reverse bends, the side walls of' the' ribs are again brought together, as shown at 29, and at their bottoms are provided with oppositely extending flanges 30, which 4act as supports from the side edges 3l'of`the looking-glass reflectors 32. There is a passage 83 between the looking-'glass reflector and the outer wall, one wall'fofthis passage being formed by the usual silvered back -34 of the lookingglass'reflector formed by the usual treated or silvering coating for imparting the reiectingwpropertiesto the looking-glass reflector.V l

When the light of the lamp `islighted,V it throws off heat, which acts uponthe lookingglassreliector and normally createsA heat in" theV passage 33, the heat causing a current of coolingair 1n said'passage byreason'of the construction of my improved device,` and causing contact of said current of cooling air .constantly against the silvered back of theV looking-glass reflector for keeping the same cool and preventing disintegration or detrimental efi'ect upon'the silvered back, which would otherwise be caused by the presence of theheat.

In "order to cause as direct 'a 'current as possible through the passage, I provide openings for the bottom and top of the same, and preferably divide the passage between the outer wall and the looking-glass reflector wall, shown as accomplished at the corners of the shade by the presence of the ribs 23, which act as dividing walls between the divisions of the passage at the respect-ive sides of the shade. A swirling of the current between the outer and inner walls is thereby prevented, the divisions of the passage converging upwardly for providin a comparatively large intake for the cooling air. In order to increase the current of the cooling air through said passage, I connect the top of the passage with a flue 35, which surrounds the upper portion of the lamp, and which is further connected with the space 41 under the shade, by passages 42. The flue thereby acts to draw up currents of cooling air between the looking-glass faces 43 of said looking-glass reflectors and the lamp, and through the passages 33 between the silvered backs of said looking-glass reflectors and the outer wall of the shade, creating currents of cooling air at both sides of said inner looking-glass reflectors.

For supporting the looking-glass reflectors at their upper and lower edges, and providing openings for the passages 33, and for readily assembling the parts, I provide the following instruinentalities: 45 is a channel-strip, extending lengthwise of the lower edge of the passage 33, the channelstrip being provided with flanges 46, 47, at its respective side edges, and with an inward bulge 48 between said flanges, there being a looking-glass reflector receiving groove 49 between the flange 46 and said inward bulge and a side wall receiving groove 50 between said inward bulge and the flange 47. The lower edges of the looking-glass reflectors are received in the grooves 49, and the lower edges of the sides 22 are received in the grooves 50. The inward bulge is provided with perforations 51, these perforations preferably extending lengthwise of the channel-strip and separated by the connecting webs 52. These channel-strips are preferably mitered at their ends, as shown at 53, each of the sides of the shade at its lower edge being provided with a channel-strip. An angle-piece 55 may, if desired, be received over the upper flange 47 of the channel-strip at the lower edge of the side 22, the angle-piece at its lower edge being provided with a bend 56 extending lengthwise thereof and received over the outer wall of the groove 50. An angle-piece is provided.

similar to the channel-strips 45, the parts thereof being designated by similar but primed reference numerals. The lookingglass reflector grooves 49 thereof are arranged to receive the upper ends of the lool:- ing-glass reflectors 32, and the side wall receiving grooves 50 thereof are arranged to receive the upper edges of the sides 22. The ends of these channel-strips are preferably mitered, as shown at 62.

65 is a hanger for the shade and is preferably secured to the shade by flanges 66, these flanges being shown riveted to the upper ends of opposed sides 22 of thel outer wall of the shade.

The flue 35 is shown formed by the walls preferably rigidly connected at their corners, as by means of rivets 71. c The walls 70 are shown as having upward curls 72 at their bottoms and downward curls 73 at their tops, these curls extending lengthwise of the walls 70. Opposite curls 72 may be recessed, as at 74, at their bottoms, for accommodating the flanges 66, for forming a close fit between said walls 70 and the upper ends of the sides 22 for forming a continuation of the passages 33. The walls of the flue at their bottoms may have fingers 7 5 stuck up out of the lower curls 72, the fingers being received across the channelstrips 61 for holding the same in place.

For holding the channel-strips 45 and the angle-pieces 55 in place, I prefer to provide corner-pieces 77, each of whichhas a lower inturned hook 78 received under the ends of the lower bends 56 and the ends of the channel-strips 45, and having a bulge 79 for receiving the ends of the'angle-pieces 55, the cheeks 80 of the bulge resting upon the upper faces of said angle-pieces.

Corner-strips 81 extend from the corners of the flue 35, lengthwise of the corners of the outer wall 21, and' have releasable connections with the corner-pieces 77, these connections being respectively shown as a screw 82 connected with the strip 81 and received through a slot 83 in the corner-piece, a nut 84 received over the screw clamping the strip and corner-piece together and thereby clamping the parts of the shade in assembled relation.

The flue is arranged to be secured, if desired, to the hanger by means of a screw 85 received through the hanger and flue and a clamp-nut S6 received over the screw. The hanger may receive support in suitable manner and is shown provided with a hole 87 through which the pipe 19 passes, the hanger having support on the valve 18.

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

1. A lamp shade comprising a body which surrounds the lamp and is formed plurisided, the said body comprising an outer wall and an inner wall, the said inner wall formed of looking-glass reflectors whose silvered backs are presented toward said outer wall, upwardly converging connecting ribs between said outer wall and looking-glass reflectors at the corners between the sides of said pluri-sided body for forming cooling air passages formed respectively of said outer walls, said ribs at the respective ends of said passages and said silvered backs of said looking-glass reflectors, and said passages having openings at their bottoms and tops, whereby currents of cooling air are created through said passages in contact with said silvered backs of said lookingglass reliectors.

2. A lamp shade comprising a body which surrounds the lamp and is formed plurisided, the said body comprising an outer wall and an inner wall, the said inner wall formed of looking-glass reflectors whose silvered backs are presented toward said outer wall, the fronts of said reflectors presented toward each other forming a cooling airpassage, upwardly converging connecting ribs between said outer wall and lookingglass reflectors at the corners between the sides of said pluri-sided body for forming cooling air-passages formed respectively of said outer walls, said ribs at the respect-ive ends of said passages and said silvered backs of said looking-glass reflectors, said last-named passages having openings at their bottoms and tops, and a flue surmounting said first-named air-passage and said last-named air-passages, whereby currents of cooling air are created through said passages in contact with said fronts and said silvered backs of said looking-glass reflectors, all said currents of cooling air converging in said flue, substantially as described.

3. In combination, a lamp shade of the character described comprising an outer wall, an inner wall formed of looking-glass reectors which surround the lamp, said walls having cooling air passages therebetween, lower` channel-strips extending lengthwise of the bottoms of said cooling air passages, said lower channel-strips provided respectively with a looking-glass reflector receiving groove and an outer wall receiving groove, upper channel-strips eX- tending lengthwise of the upper ends of said passages, said upper channel-strips provided respectively with a looking-glass reflector receiving groove and an outer wall receiving groove, releasable corner-pieces received over the proximate ends of said lower channel-strips, retaining means for said upper channel-strips, and releasable connections between said corner-pieces and retaining means.

In testimony whereof, I have hereunto signed my name in the presence of two subscribing witnesses.

JAMES GILSEY. Witnesses:

NATHANLEL H. MAXWELL, THERESA M. SILBER.

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