US1111623A

US1111623A - Electric-light pendant.

Info

Publication number: US1111623A
Application number: US81300514A
Authority: US
Inventors: William Oscar Teasdale
Original assignee: Individual
Current assignee: Individual
Priority date: 1914-01-19
Filing date: 1914-01-19
Publication date: 1914-09-22
Anticipated expiration: 1931-09-22

Description

W. 0. TEASDALE.

ELECTRIC LIGHT PENDANT.

APPLICATION FILED JAN. 19, 1914.

1,111,623. ented Sept. 22, 1914.

2 SHEETS-SHEET 1. 41 m INVE/VTUR f/zZ/zamz 05cm" feasdaia WITNESSES ATTORNEYS THE NoR'RIs PETERS 60.. PHOTO-LI rH0., WASHINGTON, u.

W. O. TEASDALE. ELECTRIC LIGHT PENDANT.

APPLICATION FILED JAN. 19, 1914.

Patented Sept. 22, 1914.

2 SEEETSSHEBT 2.

5 I a a a n @J i Q 6 w .QHwX a fi M 6 a v 1 WITNESSES I Mv THE NORRIS FEYERS (:07. PHOTO-LITHQ, WASHINGTON. 0. c.

Unrrnn srarns PATENT onnron.

wrnnraiu osoan rnAsnALn, or MANILA, PHILIPPiNE IsLaNns.

1,111,623. h J i To all whom it may concern? resident of Manila, Philippine Islands, have following is a specification. J

'Hy invention relates to improvements in adjustable electric light fixtures, and it con sistsin thecombinations, constructions, and, arrangements herein described and claimed.

.Anobject of my invention is to provide a holder for an electric lamp by means of; which the lamp may be easily adjusted to?.

' be firmly held in its.

any position and may adjusted position.

A further I object of my invention is to provide a device of the character mentioned which is simple in operation and which may be manipulated with very little effort.

Other objects and advantages will appear in the following specification and the novel features of the device will be particularly pointed out in the appended claims. 'My'invention is illustrated in theaccompanying drawings forming partof this ap plication .in which Figurel is aside view of the device, Fig.

2 is a view of a modified form, Fig. 3 is a view of another modified form, Fig. tis an enlarged sectional view, Fig. 5 is an enlarged faceview of a portion of the apparatus, Fig. 6 is a section along the line 66 of Fig. 5, and Fig. 7 is a plan view, showing the diii'erent positions of the lamp 30 on the line 77 of Fig.1.

Referring now to Fig. 4, I have shown a casing 1 havinga flange 2 arranged to be secured to theceiling 3 where it may cover the ordinary rosette (not shown). The ca-sing is threaded internally at its bottom to receive the upper threaded end of a tube 4:. The lower end of the tube 1 is threaded to enter the threaded socket 5 at the end of a sleeve 6, which is shaped at its upper end, as shown at 6 to be turned by a wrench. The lower end of this sleeve is provided with a series of tapered spring fingers 6 arranged to engage the sides of a tube 7 which is adapted to enter the tube 4,.the tubes 7 is carried by the upper end of the tube 7. The lower end of the sleeve 6 is threaded to enter the threaded thimble 9which is pro-.

. Be it known that 1, WILLIAM Osoan TEAS-j DALE, a citizenof the UnitedStates, and a ELECTRIC-LIGHT PENDANT. 1

. Specification of Letters Yatent. Patented Sept, 2,2, 1914, Application filed January is, 1914. Serial no. 813,005.

At the bottom of the tube 7 is secured an annular flange 10. A sleeve 11 is disposed about the tube 7. This sleeve is threaded to enter the threaded end of a thimble 12 having a portion 12* arranged to engage the spring fingers 11 which are integral with the sleeve 11. An oil inlet 13 is. provided in the sleeve 11.

The sleeve 11 is threaded internally at its lower end to receive the threaded lug 14 of a laterally extending'sleeve 15. The latter is arranged to slidably hold a tube 16 and is provided with a' locking thimble 17 arranged to engage the spring fingers 16 for:locking thefitube 16in its adjusted position. Thetubelfi is'bent at 16 and is connected by means of a .hinged joint 18 with,

a tube 19 which is provided with an open- 1ng20 forthe admission of the flexible conductor 21; The tube 19 is threaded at 22 to fit a standard electric light. socket.

From the foregoing description of ,the various parts. of the device the operation thereof may be readily understood.

The upper tube 4: is provided with a branch 41 through which the flexible conducting cable 21 passes. This, as stated before, is arranged to enter the opening 20 inthe tube 19. The lamp 30 may be raised or lowered by loosening the thimble 9 which, as shown in Fig. 1,. is knurled to facilitate the turning of the thimble. The'tube 7 may now be adjusted with respect to the tubee and wheninthe desired position the thimble 9 may be tightened, thus causing thespring fingers 6 to grip thetube 7 thereby holding it in position. The head 8 is to prevent the. tube 7 from coming entirely out of the tube 4:.

I The thimble l2' when tightened will hold the laterally projecting arm 16 rigidly in position. Ordinarily, however, the thimble 12 would be loosened so as to permit the arm 16.to rotate. The loosening of the thimble 17 will permit the extension of the arm 16 so as to bring the lamp nearer to or farther away from the vertically extending tube7. 3

As will be seen from Fig. 1 theprovision of the hinged joint 18 permits the swinging of the lamp from the 'full line position shown in Fig. 1 into other positions such as those shown in dotted lines, where the lamp may be held by means of the set screw 18 In Fig. 2 I have shown a modified form of the device in'which a casing 24; is secured to the wall 25 and is provided with a rod or pipe 26 which is connected by an elbow fication, as in the one just described, the con-' ducting cord is designed to extend from the ceiling rosette.

- The pipes are designed to be of standard sizes and the material is preferably brass or bronze, but it will be understood that pipes of any suitable material and of any convenient size might be used without departing from the spirit and the scope of the invention. l

I claim:

1. An electric light pendant comprising a pair of telescopic members, means for suspending one of said telescopic members, a sleeve mounted to' turn on the lower end of the other of said telescopic members, the said sleeve projecting at its lower end below the end of said telescopic member, a laterallyl extending sleeve having a member secured inthe projecting end of the first mentioned sleeve, and a slldable arm carried by said .laterally extending sleeve for supporting a lamp.

2. An electric light pendant comprising a pair of telescopic members, means for suspending-one of said telescopic members, a sleeve mounted to :turn on the lower end of the other telescopic member, a laterally extending sleeve having a member secured to the lower end ofsaid first mentioned sleeve, a slidable arm carried by said laterally ex-' tending sleeve for supporting a lamp, and means for retaining said telescopic members .in their adjusted positions. i

3. An electric light pendant comprising a pair of telescopic members, means for suspending one of said telescopic members, a sleeve' mounted to turn on the lower end of the other telescopic member, a laterally extending sleeve having an upwardly extending member secured to the lower end of the first mentioned sleeve, a slidable armcarried by said laterally extending sleeve for supporting a lamp, means for retaining said telescopic members in their adjusted posi-' tions, and means for retaining said first mentioned sleeve in any of its adjusted positions on the said telescopic member.

4:. An electric light pendant comprising a pair of telescopic members, means for suspending one of said telescopic members, the other telescopic member having an annular flange at its lower end, a sleeve mounted to turn on the lower end of the last mentioned telescopic member and engaging said annu lar flange, the said sleeve having its lower end internally threaded and extending below the endof saidtelescopic member, a laterally extending sleeve having an upwardly extending threaded lug screwing in the end of the first mentioned sleeve, a slidable arm carried by said laterally extending sleeve for supporting a lamp, means for retaining said telescopic members in. their adjusted positions, means forfretaining said first mentioned sleeve any of its adjusted positions, and means for clamping said slidable arm to said laterally extendingsleeve.

5. An electric light pendant comprising a pair of telescopic members,11mea-ns for suspending one of said telescopic members, a

one of said telescopicmembers, a laterally extending sleeve having a lug secured in the end of the first mentioned sleeve, a slidable arm carried by said laterally:extending sleeve for supporting a lamp, said slidable arm com-prlslng two portions connected by a hinged joint, one of said portionsibearing the lamp, and means for retaining the latter portlon 1n any of its adjusted positions.

6. In an electric light pendant, a pair of telescopic supporting members, a sleeve car- .pair of telescopic members, means for suspending one of saidmembers', 'a sleevecarried at the lower end of said member and through which the second telescopic member passes, a second sleeve mounted to turn on the lower end of said second telescopic member, means for clamping the sleeves to said second telescopic member, a laterally extending sleeve secured to the lower end of said second sleeve, a slidable arm carried by said laterally extending sleeve for supporting a lamp, and means .for clamping said slidable arm. to said laterally extending sleeve. v H 8. In an electric light pendant',*a pair of telescopic supporting members, means for suspending one of said members, a sleeve .mounted on the lower end of theother member and adjustable around the same, a later- .sleeve mounted to turn on the lower end of ally extending sleeve, means for securing the the sleeve for engaging the spring fingers to laterally extending sleeve to the lower end clamp the slidable arm in position.

of the first mentioned sleeve, a slidable arm carried by the laterally extending sleeve for WILLIAM C TEASDALE' supporting a lamp, the said laterally extend- Witnesses:

ing sleeve having spring fingers at one end, FELIX LARDIZABAL,

and a thimble adjustable on the said end of GREGONO NARVASAQ Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.