US1045450A

US1045450A - Lamp-fixture.

Info

Publication number: US1045450A
Application number: US53301209A
Authority: US
Inventors: Edward C Sofio
Original assignee: Safety Car Heating and Lighting Co
Current assignee: Safety Car Heating and Lighting Co
Priority date: 1909-12-14
Filing date: 1909-12-14
Publication date: 1912-11-26
Anticipated expiration: 1929-11-26

Description

E. C. SOPIO.

LAMP FIXTURE. APPLICATION FILED D2014, 1909.

Patented Nov. 26, 1912.

/I'-/ VE/VTOR 5 ATTORNEY EDWARD 0. Screw, or no aoiznn, New .iEnsnmesiGnon To inn-SAF TY cA HEA'r- ING & LIGHTING 'coMraNY, A oonrona'rion or new Jn snY.

'1 IAMPLFIXTURE.

iiaaaaso,

/ Specification of .Letterslaten t.

Patented some, 1912."

Application filedDecember iafiflalseri im. 533,012. v

Toall whom it concern:

Be it known that I, EDWARD C. SOFIO,.

' a citizen ofthe United States, residing in 1 Hoboken, county of Hudson, and State of New Jersey, haveinvented new and useful Improvements in-Lamp-Fixtures, of which the following is a description. 4

My invention pertains to that classof lamp fixtures used to support an electric lamp or' bulb and carry in operative relation thereto a shade or reflector adapted to shed the rays of a lamp in a desired direction. In the drawing Figure '1 represents a ver- 2 tical section and partial elevation oi one form of lamp fixture embodying my inven-- tion. Fig. 2 is a side elevation of one portion of the fixture shown in section in Fig. 1. Fig. 3 is top plan of the same, portion as will hereinafter be more plainly brought out.- Fig. 4 is a top-plan of one of the portions of my fixture shown in section in I Fig. 1.

In 1, 1 represents a portion of any '25 suitable type of bracket or support. intended to carry the bulb or lamp and is shown pro-' vided with a depending screw threaded nipple 2 upon which is screwed the nut 3 carrying the bonnet portion 4 provided at its lower portion witha lateral flange 5 and depending'portion- 6. The bonnet 4 is provided withapertures 7*for the purpose of ventilation. 8 is a three-legged spider provided with an upturned nipple which is threaded into the internal bore of the mom- .ber 2 .as shown in Fig. 1.v The 1nember8 is also provided with an internal thread -adapted to-receive the nipple 9 of the socket 10 so as to hold the samein proper operative position. The members 2 and 8 are provided with central bores 11. through which theproper wires are led-to the socket 10. The spider 8 is provided with three legs 12 as shown more plainly in plan in Fig. 4.

Figs. 1, 2 and 3') provided with three vertical slots 13 adapted to register with the three legs 12 of the spider 8 in such manner that the said member 14 may be passedupa right-handed direction until the legs 12" are in line with the slots 15 and then ifv lowered be lockedin place by the depend- V ing lip 20in the manner known as a bayo- 14 represents a spun' metal member (see net joint jconstructionn The member 14 has a vertical cylindrical portion of such di-.

ameter as to fit within the opening in the neck of the shade which isdesired to be attached to the fixture and is provided at its lower portion with a flange 16 adapted toengage the expanded portion of the shade 18. The shade '18 is provided with a flange 17 against which the metal flange 5 presses when the bonnet 4 is moved downwardly as when the member 3 is screwed downwardly upon the member 19 represents an ordi' nary electric lamp or bulb carried by the usual socket 10; o The operation of my improved fixture is. as follows starting with the various parts in the positions indicated inFig. 1 in which the three legs 12 of the spider 8 are in register with the slots 15: If it be desired to more tightly clamp the shade 18 the nut-8 maybe revolved so as to move downwardly upon the threaded portion 2. This will crowd the flange 5' of the bonnet 4 upon the flange 170i the shade 18 and press the same downwardly iipon'the flange 1601: the member 14 which will be held from any downward I movement by engagement with I the legs 12 of the spider 8 and thus the shade will be more firmly clamped between the members 5 and 16. If it be desired to resuch direction as to raise the bonnet 4 until there .is suflicient clearance between the flange 5 and the flange 17 of the shade to allow the member 14 to be raised so that it will revolve until the legs 12 of the spider 8 register with the openlngs 13 when the .said member may, readily be withdrawn from the spider and the shade taken down and the thimble 14 removed if desired. To replace the shade the nipple 14 may be slipped through the neck of the shade and .thenthe slots .13 brought to register with the legs 12 and the thimble 14 and shade 18 maybe raised until thelegs 12 will pass'under the lip 20 and then-the thimble 14 may be given such revolution as will bring the legs 12 in register with the slots 15' and then the thinible 14 and shade may be released..-

and locked in place upon the legs 12..',-If'

then the member 3 be screwed downwardly the same will causethe flange 5 to bear uponthe flange 17 and firmly holdthe shade in its .proper position'as indicated Fig. 1. The depending flange or etticoat .6 will cover ner as to conceal the same. The heated air within the shade 18 may pass upwardly through the thimble l4 and out to the atmosphere through the ventilating apertures 7 so as to prevent the bulb or fixture from becoming overheated.-

From'the foregoing it will be plain that I have constructed a simple and strong form of fixture adapted to hold an electric lamp inv a desired position and firmly hold in operative relation thereto a reflector or shade in such manner that the same will not rattle when subjected to vibration as when used upon railway cars. Also that I have produced a fixture in which the means for holding the shade and lamp are readily concealed in such manner as to permit of ornamental design and construction.

I do not wish in any way to limit myself to the exact constructions or modes of operation set forth in the above description for it is obvious that considerable change in the form of fixture may be made without departing from the spirit of my invention which is as set forth in the following claims:

1. A lamp fixture comprising a nipple having a socket and an exterior screw-threaded portion; a spider having a screw-threadedconnection with said socket and means for supporting a lamp-socket; a shade-holder comprising two members, one of which has means for supporting it upon the spider and the other of which is rotatably connected to the screw-threaded portion of said nipple;

and one of said members having a circumferential outwardly-extending flange upon which the neck of a shade maymest, and the other member havinga flange for engaging the neck of the shade and adapted, when rotated upon the nipple, to firmly clamp the neck of the shade against said circumferentialflange.

2. A lighting-fixture comprising means fo carrying a lamp-socket; a lamp-socket secured'sto said carrying means; means for carrying a shade in cooperative relation to saidsocket, including a cylindrical member adapted to pass over said socket, and provided .withmeans for engaging a portion of said fixture, and also having means for engaging the inner surface .of a shade; and movable means carried by said fixture for pressing upon the outer surface of said shade to firmly hold the latter.

within the shade and around the socket; and 7 means for supporting the retaining-member in position and limiting its movement relatively to said receiving means, the said retaining-member being out of contact with said socket. i

4. The combination with a lanip-socket, means for supporting the same and an apertured shade, of means for holding said shade in operative position comprising a thimble passed through said shade and provided *ith a flange engagingthe same; means for engaging the socket-supporting means; and means carried by the supporting means for pressing said shade against said flange.

5. lamp-fixture comprising means for supporting a lamp-socket, said supporting ineans having radial projections; and a clamp for engaging the neck of a lampshade, said clamp comprising a member removably connected to theradial projections, and a member rotatably connected to the supporting means and movable longitudinally relatively to the otherjmember, Whereby rotation of the movable member on thesnpporting means will cause said member in cotiperation with the other member to firmly clamp and hold a shade.

6. A lamp-fixture comprising means for supporting a lamp-socket; a shadeholder consisting of two members one of which is arranged within the other, the inner member having a pin and slot connection with the socket-supporting means and being adaptedto enter the lampshade to engage the neck thereof, and the outer men her being rotatably mounted upon the socket-supporting means and being adapted to engage the outside of the'neck of the shade; the inner member of said shadeholder having a supporting-flange for the shade, and he outer member having means for forcing the shade firmly into engagement with thefiange of the inner member or to release said shade when said onter member is rotated upon the socket-support v EDWARD C. SOFIO. Witnesses:

J OHN'T. CLARK, E. E. ALLBER.