US1435427A

US1435427A - Lamp

Info

Publication number: US1435427A
Application number: US452716A
Authority: US
Inventors: William L Stewart
Original assignee: Individual
Current assignee: Individual
Priority date: 1921-03-16
Filing date: 1921-03-16
Publication date: 1922-11-14
Anticipated expiration: 1939-11-14

Description

LAMP.

APPLICATION FILED MAR. 16, 1921..

I Patented Nov. 14 192a 3 SHEETS-SHEE1 1:.

, F: e. a

\Nllh'mm i. 5Te wart MENTOR ATTORNEY vi/yank 5.5% I

W.L.STEWARR LAMP. APPUCATION HLED MAR-l6,192h

1,435,427. Patented Nov. 14,1922

3 SHEETS-SHEET 2.

WLkLLI RMX. STEWHRT \NVF toR by I 11/4225 6.667 7 AwTeRNEx W. L. STEWART.

LAMP.

APPLICATION FILED MAR. 16, 1921.

1,435,427, Patented Nov. 14, 19232.

8 SHEETSSH'EET 3.

ATTbRNEY Fatented Nov. l i, 1922.

WILLIAM L. STEWART, orwoecnsriia, ivmssncnosnrrs Application fi'Ied'Mar'ch' 16, 1921. Serial in. 452,716.

To all whomit may concern Be 1t known that 1, WILLIAM L. STEWART,

' a citizen of the United States, residing at Worcester, in the county of \Vorcester and State of Massachusetts, have invented new and useful Improvements in Lamps, or.

lamp fixture connected theretoso as to adapt the lamp interchangeably to give out illumination employing either gas or electricity, at any one time' V A still further object of my invention is to provide novel improvements in lamp shade designs, to enhance the appearance and utility o'fthe aforementioned lamp and to assist in a better distribution of the light rays particularly upon a 'table thereby re'-- sulting in a better focus of light than isob tained from most lamps;

And-itis another-object of my invention to provide novel means of securing a lamp? the' pedestal of a,

shade in; position upon lamp which is characterized by the fact that no tools are necessary to secure the'xsh'ade.

With the above and other objects in View my invention consists in the combination, arrangement and details of construction disclosed in the drawings and specification and then more particularly pointedout in the appended claims.

' In the drawings wherein similarreference' milar parts" throughcharacters designate s1 out-the respective vlews, I Y Y Flg'ure 1 1sa side elevation of my inveng tion including the gzjlass sh'ade,v

Figure 2 1s a side elevat on without the ounted thereon,

glass shade being bottom plan view' of the Figure 3' is a lamp,

arrange the lamp;

] with divergent branches Figure A: is a vertical, sectional view Figure 5 is a fragmental, sectionalview through a-modification of my invention,-

Flgure 6 is a top plan view of Figure ,5, Figure 7 is a cross section through the pedestal shown in Figure 5, I

Figure -8 is a fragmental, sectional, detailed view of a lamp shade, Figure 9 is a vertical, sectional view through the lamp taken at right angles to Figure 4,

Figure 10 is a top plan'view of Figure 2, Figure 11 is a bottom plan view of the lamp shade, l I 1 Figure 12 is asectional, detailed view of the lower edge of the lamp shade,

Figure 13-is a detailed view of a corner of'the lamp shade, Figure 14 is a detailed, sectional, nag mental view of another corner "of the lamp shade, l Figure 15 is a fragmentahdetailed view of a shade-supporting arm, and,

Figure 16 is a plan view of apart to be described.

In the drawings which are merely illus trative of my invention, ldesi'gnates the base portion of the lamp which is also formed with a plurality of props 2 located at the corneroi the base portion 1. lhe base portion is formed centrally with a throughchannel orpassage. 3 at one end of which fits a connector element 4," and this passage communicates with a vertical channel or passage formed longitudinally through a support or pedestal 6. The upper end ofthe pedestal is enlarged as'at 7 and this end of the pedestal is adapted to carry, a collar or headed portion, whichmay be in the form of a separate block 8 resting upon the fiattop surface of the support or pedestal 6. The upper end of the passage 5 is provided M and N: which communicate with oontiinuations of these branches 0 and P formed through block 8- as clearly shown in Figure 4. and .in the branches O and project the tubular terminals 9' and 10 of the electric bulbs 11 and 12, which electric bulbs are thus oppositely inclined so as to converge towards the pedestal There is a gaspipe 28 extending vthrough the upper end'of the passage 5 and running lengthwise of this passagebeing bent around at 28 so as" to project laterally in the" base assage 3- arena;- cenraeu tnerew sni ers 7 to which is secured a flexible gas pipe X. The upper end of the gas pipe is threaded for the reception of a nut 13 which forms part of the stem 14 of the gas mantle fixture and it will also be noted that the nut 13 clamps down tight upon the block 12" which is secured upon the top of the block 8. This nut or clamping coupling 13 may be screwed upon either pipe 28 or pipe section 18. Electric wires Y connected together carrying a plug 48 adapted to have an electrical interfit with the connector element 4 and the wires run through the base passage 3 upwardly through the pedestal passage 5 and are connected to the electrical bulbs 11 and 12. .lt will be understood that the electric bulbs carry the usual. switch chains (not shown.)

In order to simplify the arrangement and construction of all the parts there is shown in Figure 5 a fixture in the nature of aniain pipe, the upper portion of which is desig nated 18 and the lower portion 15 there being formed at diametrically opposite points of this pipe the divergent The upper portion of the pedestal or support 6 as shown in Figure 5 is headed as at 21 to provide an integral collar disposed to take the place of the separate collar 8, and this headed portion is formed with a socket 23 which flares outwardly of the head and the oppositely inclined pipe branches or

arms

16 and 17 fit snugly in this socket while the lower end of the pipe 16 fits snugly in the passage 5 while the upper portion 18 of the pipe projects above the head 21. The

arms

16 and 17 serve to provide integral means on the upper portion 18 of the gas fixture to limit the downward movement of this gas pipe in said pedestal. A plug 19 fits around the portion of the pipe 18 and contacts the head 21 and is secured in position by the fasteners 20 entering the holes 24 formed in the head 21. The mantle 14 is then operativcly connected to the projecting terminal of the pipe portion 18.

It will thus be seen that by connecting the plug 48 to the switch element 4 an electrical circuit is closed to the lamp bulbs 11 and 12 causing the bulbs to flash and glow and if the flexible gas pipe X is connected up to the proper gas fixture and gas introduced in the pipe the gas will find its way up the pipe 28 or through pipe section 18 of the three-way gas fixture as shown in Figure 5, to the mantle and thus gas may be used for illumination purposes as well as electricity.

In order to obtain a better dissemination of the light rays it is necessary to employ my lamp shade which will now be described. In order to support the lamp shade removably on the pedestal, I provide a plurality of shade supporting arms 26, four of which are disclosed. Each of these arms consists D of a lug 29 formed at its inner end and a

arms

16 and 17.

substantially ri ht angular lug formed at its outer end, as shown in Figure 15, each of the lugs 29 are provided with a headed pin 30 adapted to engage a key hole slot 33 formed in a plate 32 so that the head of this pin will be accommodated in a socket 31 formed into the pedestal. The idea is to insert the head of the headed pins 30 into the wide end of the key hole slot 33 and then by pressing the lug inwardly the head will be locked in the narrow portion of this key hole slot. 7 The lugs 27 formed upon arms 26 are also formed with key hole slots similar to the slots 33 adapted to be pre sented against pins 49 secured upon four diagonal straps 30 forming part of the lamp shade.

The lamp shade consists of an upper rectangular strip 40 and a lower, larger rectangular strip 25, the last named strip being wider than the strip 40. A series of diagonal strips 34 extend between the

rectangular strips

40 and 25 and have beveled abutting edges engaging the sides of the strip 25 as shown in Figure 14. I provide four trapezoidal shaped glass panels 37 substantially of similar shape extending upwardly from the edges of the strip 25 and the lateral edges engaging under the strips 34 which may be grooved out asshown in Figure 8 to snugly receive these edges of the glass panels 37, the strips 39 extend parallel to the strips 34 on the inner side of the shade and are positioned as shown in Figure 8 so as to engage the glass panels 37 at the same time these two strips being secured together by the fasteners 30 shown in Figure 8. Angle irons 41 are secured to the corners of both of

strips

25 and 40 and have angularly inclined arms arranged in alinement and secured to the respectively upper and lower ends of the strips 38 (see Figure 14.) In this manner the glass panels 37 are secured in proper position all around the shade. I also mount four glass strips arranged in two sets, the first set being designated 37 andthe other set at right angles to the first set being designated 46. These glassstrips are intended to overlie the inner sides of the strip 25 and are held against downward displacement by the fasteners or clips 45, (see Figure 12) secured to the sides of the strips 25. The corners of the sides of the strip 25 having a beveled edge fit and their inner intersecting portions are connected to angle irons 43 which thus stiffen these parts and bridging the opposing edges of the side of the angle irons 43 are gussets 44 which also form abutments for the right angular

disposed glass strip

37 and 46. The sides of the strip 25 will preferably be cut away to provide desirable filigrees so as to enable the light to show through the glass strips 37 and 46' which overlie their inner sides. When the light is shining from the mantle 14 or the electric bulbs 11 and 12 the inclining glass pc nels 37 will be found to scatter and dilluse the light.

. ment 4 the electric light circuit may be interrupted.

What I desire to claimfand secure by Letters Patent is: I

1. A lamp consisting of a base having a horizontal passage therein, a wooden pedestal secured down upon said base and having a vertical passage communicating with the horizontal passage, a pipe passing upwardly through the pedestal passage and-projecting thereabove and having a lower curved portion projecting through the horizontal passage of said base at one side of the pedestal, electric lamp sockets in the upper end of said pedestal diverging with respect to. said pipe upwardly outside said pedestal, a gas mantle secured to the upper end of said pipe, a block surrounding the upper projecting end of said pipe and laying on top of said pedestal, a nut carried by said pipe adapted to clamp down said block, and electrically fed lamps connected to said divergent lamp sockets.

2. A gas lamp consisting of a wooden pedestal having a flat base portion, said pedestal having a vertical and horizontal passage, a pipe havmg ts main length recelved 1n the vertical passage of the pedestal and having a lower angular portion projecting out through the horizontal passage of the pedestal, a nipple connected to the lowerend of said pipe and havingan enlargement of the base portion, a connector element secured in the base channel at a point opposite to said mentioned nipple, a flexible gas pipe connected to said nipple, an electric plugconnected removably to said connector element, an electric lamp device connected to the upper end of said pedestal andelectrical connections leading from said connector element to saidelectric lamp device. p

3. In a device flSdQSCIlbBd, in combination, apedestal, a gas pipe extending thru' said pedestal so as to project above its'litop portion, integral means on said pipe imbedded' in said: pedestal and, limiting the downward movement of saidpipe in said. 5

pedestal, a block: around said pipeengaging the top of said pedestal, a coupling engaging the outer end of said pipe and clamping said block down onfsaid pedestal, a burner connected at its lower end to said coupling, and a mantle carried by said burner.

4'. In a device as described, in combination, a base portion, a wooden pedestal having alower part secured centrally to said base portion, said pedestal being formed with a central vertical bore. and said pedestal having its upper portion cut away so asto communi cate with said central bore adapted to provide oppositely inclined walls, lamp sockets j projecting into said cut-away portion and engagingthe inclined walls thereof, and a gas burner pipe projecting into the uppermost end ofsaid central bore.

5. v In combination, a fiat support,-said' fiat support being cut awayat various points to produce depressions, said depressions having rabbets, plates countersunk in said rabbets having key-hole slots, and a series of lamp carrying pins projecting into said key-hole t In witness whereof. he has hereunto set his shade supporting arms having angular lugs hand and afiixed his seal this 5th day of February, 11 921.

Attested: WILLIAM'E. Barn,

JAMES STEWART.

WILLIAM L. STEW -l