US1228762A - Electric-light fixture. - Google Patents

Description

6. F. D-OLLE.

ELECTRIC LIGHT FIXTURE.

APPLICATION FILEQSEPT. 14. 19:2.

1 ,fi fififi Patented June 5, 1917.

' Fixtures, of which the following CHARLES F. DOLLE, OF GINGINNATT, OHIO.

ELECTRIC-LIGHT FIXTURE Application filed September 14, 1912. Serial No. 720,373.

To all whom it may concern: Be it known that 1, CHARLES F. DOLLE, 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 Electric-Light is a specification. My invention relates to improvements in incandescent electric light fixtures. One of its objects is to provide a fixture by means of which incandescent electric lights may be extensibly or adjustably supported from the wall or ceiling. Another object is to provide a casing or fixture to be rigidly attached in place and connected to the line wires, and which is provided with a spool or drum on which a flexible electric. light cord is wound with the electric light attached at the outer 7 end whereby the cord may be wound onto or unwound from said spool, and'the electric light moved from place to place as required. My invention also comprises certain details of form,.combination and arrangement, all

of which will be fully set forth in the description of the accompanying drawings, in"

Figure/1 is a perspective .view of my improved fixture attached to the ceiling'of a room.

Fig. 2" is a side elevation illustrating a modified formthereof attached to the wall i of a room.

1 Fig. 3 is a top plan view of the drum or cylindrical section detachedto illustrate the attachment and circuit connectingpfeatures.

Fig. 4 is an enlarged central vertical section through the drum section of the fixture,

on line as w of Fig.5.

Fig. 5 is a vertical section through the same, on line 0 '0 of Fig. 4.

Fig. 6'is an enlarged sectional detail on line 2 z of Fig. 4. a

Fig. 7 is an end view of a modification.

The accompanying drawings illustrate the preferred embodiment of my invention in which A represents a member of electrical non-conducting material, preferably porcelain, which is provided with two metal lugs 2 and 3 at opposite sides-and is designed to be permanently or rigidly attached to the wallor ceiling with the line wires 6 I) respectively resting on the members 2 and 3.

A frame or casing composed of two members B and C preferably of electrically nonconducting material, such as porcelain for Specification of Letters Patent.

cured together.

Patented June 5, 1917.

instance, constitutes the inclosing wall of a cylindrical chamber 4 in which is rotatably mounted a spool or drum D. The upper face 5 of member Bis jrovided with pro- ]ections 6 and recesses to interlock with corresponding parts carried by member A,

and is also provided with metal lugs 8 and 9 to come opposite the lugs 2 and 3 with the 11ne w1res b b respectively between the lugs 2 and 8 and 3 and 9. The respective pairs p of lugs 2 and Sand 3 and 9 are clamped toof member B and are held in place by screws 14 which by-means of-fuse wires 15 are respectively in electrical contact with the lugs 8 and 9. The members B, C are provided with perforated ears ,16. through which screws 17 are passed and by means of which members B and C are detachably se- By loosening the thumb bolts 10, by reason of the slotted openings in the members 8 and 9, the member B may be readily detached from or attachedto member A. V

-The spool 0r drum D comprises a tubular section 18, of electrically non-conducting i materialsuch as fiber or hard rubber for in: stance. At one end of member 18 is a metal cap member 19 attached to member 18 by hasga flange 21 close to but preferably out of contact with the inner walls of members B and C and a central stem or spindle 22 through a slot 26 in member 18, which slot.

extends out to the end of member 18. The cap 23 is providedwith a flange 27 slightly out of contact with the inner walls of members B and C, and at the center with an opening for the passage of the end of a spindle H. The spindle H has a cylindrical bearing where it seats in the recess in cap 23 and at 28 outside of said cap is rectangular in cross section and is seated in a rectangular recess 29 formed between the meeting edges of members B and C. Inside the cap 23 screws 20 or equivalent means. Member 19 a spindle H has an enlarged head 30 with a shoulder seating against the inner face of cap 23, said head having notches 31 to engage gravity actuated pawls 32 which are pivotally connected to the inner face of cap 23. The spindle H extends practically the full length of the drum D inside member 18, but is prevented from electrically contactlng with cap 19 by means of a disk 33 of insulating material. A coiled spring 34 is fastened at one end to the right hand end of spindle H Fig. 4, and at its opposite end is attached by screw 25 to member 18. K represents an insulated lamp cord one strand 35 of which is attachedby screw 24 to the cap 23 to form an electrical contact therewith while the opposite strand 36 is attached by screw to the cap 19 to establish electrical contact therewith. The free ends of fingers 11 and 12 enter between the flanges 21 and27and the inner walls of members B and C and establish electrical contact from wires 6 b to the caps 19 and 23. A considerable length of lamp cord .K is coiled upon the member 18 between the flanges 21 and 27 and an incandescent lamp socket N is connected to the outer end of said lamp cord. Thespring34 is then adjusted to the desired tension and the drum D secured in the opening 38 in member C.

position in the chamber formed by members B and Cwith the lamp cord passin through he lamp cord may be unwound from and rewound upon the d-rum- D as desired and the lamp socket and lamp moved to any desired position withina given distance from the drum D,- and this distance varied from time to time at will. In operation the spindle H is held rigidly relative to members B and C while the drum D revolves when the lamp cord ispulled. The, pawls 31 and 32 lock the drum D to the spindle H when rotation of the drum ceases, and by centrifugal force are thrown outwardly when the drum D re- 45 volves rapidly. The flanges-21 and 27 prevent the' lamp cord from contacting with. the inner face of the members B and C. The spring 34 provides the tension or energy to rewind the" lamp cord upon the drum D. The opening 38 in member 0 is preferably of considerable area and provided with rounded and glazed edges to prevent injury to the lamp cord. 4

As illustrated in Fig. 1, my improved fixture'is adapted to be attached to the ceiling, and the line of division between members B and C is insubstantially a horizontal direction. The modification illustrated in Fig. 2 is designed to be attached to the side wall of a room, and the line of division between members B and C is preferably at an angle to the wall as illustrated.

As illustrated in Fig. 7 the members 13 and C are the same as described for Fig. 1, except that member B is provided with a member by means of which an ordinary incandescent electric light is engaged with its socket, and by means of which the member B can be attached and electrically connected to either a stationary or pendent electric light socket.

The mechanism herein illustrated and de scribed is capable of considerable modification without departing from the principle of my invention.

Having described my invention, what I claim is:

1. An electric light fixture comprising a casing composed of a base member of insulating material to be permanently and rigidly attached in position and a sectional chambered member of insulating material having an elongated slot through its wall for the passage of a lamp cord, detachably supported by said base member, a drum having an intermediate tubular section of insulating material and flanged cap members of conducting material at opposite ends, said drum being pivotally supported in the chamber of said chambered member, means to tension and to automatically lock said drum to varying positions, flexible insulated conand at the opposite end after passing through said 'slot connected to the terminals of an electric light dependently supported from said drum, and spring electrical contacts carried by said chambered member to conpying an axial. position within said drum and spring and attached to the opposite end of said spring, a series of pawlscarried by the cap-member in which said spindle is journaled to engage recesses in said spindle to lock said spindle and drum'togethen-and a plurality of flexibleelectrical conductors electrically connected to said respective capmembers and coiled upon said drum.

3. In an electric light fixture in combination with a chambered casing'of insulating fmaterial having interior stationarily sup- .ductors wound upon said drum and connect- 'ed at one end to the respective cap members ported electric contacts, a drum rotatably supported within thechamber of said casing and comprislng a tubular intermediate"section of insulating material telescopically connected at opposite ends to metallic cap members, a coiled tensioning spring located ing through one of said cap-members at its opposite end, a plurality of pawls carried by the cap-member in which said spindle is journaled to engage recesses on said spindle to lock said drum and spindle together, and a lamp cord coiled upon said drum with opposite strands in electrical contact with said respective cap-members.

4. In an electric light fixture in combination with a rigidly positioned casing memberof insulating material having stationarily supported flexible electrical contacts, and achambered casing member having an elongated slot and detachably connected to said rigidly positioned casing member, a drum located in the chamber formed by said casing members and rotatably held in position between said casing'members and comprising a tubular intermediate section of insulat- "ing material connected at opposite ends to metallic cap-members, a coiled tensioning spring located within said drum and connected thereto at one end, a spindle occupying an axial position within said drum and connected at one end to said spring and journaled in and projecting through one of said cap-members at its opposite end, pawls carried by the cap-member in which said spindle is journaled to engage recesses. on said spindle to lock said drum and spindle jtogether, and a lamp cord coiled upon saidtion with a rigidly the separable sections of said casin drum with opposite strands in electrical contact with said respective cap members.

5. In an electric light fixture in combinaositioned chambered casing of two substantlally medially divided sections having internally stationarily supported flexible contact members, a rotatable drum located within the chamber of said casing and held in position therein between and comprising a tubular intermediate section of insulating material connected at opposite ends to metallic cap-members, a coiled tensioning spring located within said drum and connected at one end thereto, a spindle occupying an axial position within said drum and connected at one end to said spring and journaled and projecting through one of said cap-members at its opposite end, pawls carried by said cap-member in which said spindle is journaled to. engage recesses on said spindle to lock said drum and spindle together, and a' lamp'cord .coiled upon said drum with opposite strands in electrical 0011- tact with said respective cap-members.

6. In combination with a chambered sectional casing of insulating material, a drum comprising a tubular section of insulating material, flanged cap sections at opposite ends thereof, a spindle within said tubular section, a coiled spring within said tubular section connected at one end to said spindle and at the opposite end to one of said caps of the drum, pawls carried by said cap to engage said spindle, and electrical contacts carried by said casing having slidingcontact with the cap members of said drum.

7. An electric light fixture comprising a rigidly positionedchambered casing of insulating material, a spring tensioned drum provided with means to automatically lock said drum to varying positions, pivotally supported in said chambered casing, said drum comprising a tubular intermediate section of insulating material and cap members at opposite ends of conducting material provided with flanges and forming electrical terminals, a flexible lamp cord composed ofa plurality of strands insulated from each other and coiled upon said drum, the respective strands of said lamp cord being connected at one end to the respective terminals of said drum and at the opposite end to the respective terminals of an electric light dependently supported. from said drum, and means to maintain electrical contact between the terminals of said drum and line wires leading to said casing.

8. An electric light fixture comprising a rigidly positioned casing of insulating material, a drum pivotally supported in said casing and comprising a tubular section, cap sections at opposite ends of said tubular section insulated from each other and forming electric terminals, a spindle within saidtubular section connected thereto by a tensioning spring, means to locksaid tubular member and spindle together at varying relative positions, a lamp cord coiled upon said drum and having a plurality of strands insulated from each other, the respective strands of said lamp cord being connected at one end to the respective terminals of said V C. W. Mums, W. McOAnms'mn.

Images