US1430156A - Lamp-shade-tilting device - Google Patents

Description

- A. 8., CUBITT. LAMP SHADE TILTING DEVICE. APPLICATION FILED 05c 21, m9.

' Patented Sept. 26, 1922.

INVENTOR.

. 1-1/5 A7TORN5Y stares Patented ears ARGHIBALD STANNARD CUBITT, OF LDNDON, ENG-LAND.

LAMP-$HADE-TILTING nsvron.

Application filed. December 27, 1919. Serial No. 347,689.

To all whom it may concern Be it known that I, ARGHIBALD STANNARD CUBIT'r, a citizen of Great Britaimresiding at 13 Glazbury Road, London, IV. 14, England, have invented certain new and useful Improvements in Lamp-Shade-Tilting Devices, of which the following is a specification.

This invention relates to electric light fittings and more particularly to that t ype of fitting in which the lamp and the shade or reflector for directing the light from the lamp are carried on the end or theflexible conductors which convey electric current to the lamp. With such fittings the light from the lamp is normally directed vertically downwards unless the reflector is formed of a special shape or is fitted with special means "for tilting the shade or reflector forming a part of the fitting. The provision of such special means adds considerably to the cost of such fittings and the objects of this invention is to provide a simple. attachment which is inexpensive to manufacture and can be readily secured to existing fittings, no special knowledge or skill. being required to fit it in place and which when fixed will enable the shade or reflector to be held at any desired angle so as to throw the light in the direction required instead of directly downwards.

The accompanying drawings illustrate this invention Figs. 1 and 3 showing two methods of constructing the attachment and Fig. 2 illustrating the invention fitted to a lamp pendant.

In the form shown in Fig. 1 which may be made of stout steel or other wire I form a circular loop 1 adapted to surround a standard lamp holder, the two ends of the loop being rigidly held together by means of a band 3 which may be soldered or otherwise secured to the wires. The ends 2 of the wires are bent into substantially helical form as shown and end in circular loops 5. An arm 47 is also provided with a loop at one end which is arranged to be held between the loops 5 by means of a hollow rivet 7 The arm 4 passes between the helices formed by the portions 2 and is held between them. so that it takes considerable force to over come the friction between them and the weight of the shade or reflector and the lamp will not be sufiicient to move the arm relatively to the helices after they have been set in the desired position. The other end of the arm a is twisted into a spiral as shown and preferably covered or coated with rubber or other suitable material.

In the form illustrated in Fig. 3 the parts 1' and e are made from fiat strip material. instead of wire, the place ofthe helices being taken by discs 2 having annular ridges formed on their inner sides at their cir-, cumference. The end of arm 4: is secured between these discs by means of a screw 7 and held against movement except on the application of considerable force as explained above with reference to Fig. 1.

V In Fig. 2 the invention is shown as applied to a simple pendant fitting consisting of a lamp holder, shade 9, and lamp 10. The loop 1 surrounds the lampholder and is held in place above the shade by means of the usual screwed ring which holds the shade in place. The flexible conductor 11 passes through the spiral formed on the outer end of the arm 4-. By setting the arm I at any desired angle to the loop 1 the shade can be held in any position between that shown in Fig. 2 and the normal position with the lower edge of the shade in a horizontal plane, the friction between the arm 4 and the helices or discs 2, being sufiicient to support the weight of any standard shade or reflector without allowing it to slip.

Although I have illustrated two forms of this invention, it will. be obvious that various modifications may be made without departing from the spirit of the invention. For example slight alterations may be made in order to adapt. it to special forms of fittings or to improve the appearance or for convenience in manufacture.

hat I claim as new and desire to secure by Letters Patent of the United States i l. The combination of a socket holder having a resilient member terminating in a pivot bearing, and a conductor engaging bar pivoted in said bearing and frlctlonally engaging the resilient member at points re mote from the bearing.

2. The combination of a socket holder having a pair of resilient members termlnating in pivot bearings, and a conductor engaging bar pivoted in said bearings'and frictiona-lly engaging the surfaces of said resilent members at points remote from the bearings.

3. The combination of a socket holder, curve-shaped resilient members having fr ctional engaging surfaces a pivot bearing mounted on said members, and a conductor engaging bar piroted in said bearing and in frictional engagement with the said snr faces.

4. The combination of a looped-shaped socket holder having an extended curveshaped resilient member at right angles to the loop a pivot bearing thereon, and a conductor engaging bar pivoted infsaid bearing and frietionally engaging the re silient member at points remote from the bearing.

5. he eombination of a looped-shaped socket holder having" a pair of extended curve-shaped resilient members at right angles to the loop, a pivot bearing thereon, and a conductor engaging bar pivoted in said bearing and friction-ally engaging the sides of the resilient members at points remote from the bearing.

member terminating in a pivot bearing and u a conductor engaging bar mounted to turn in said bearing and trietionally en g ziggiii; said spiral shaped resilient member at points remote from the bearing. and an insulated cord engagingmeans at the opposite end of said conductor engaging bar.

In Witness whereof, I have hereunto set my hand this 2nd day of Dec. 1919.

ARCHEBALD STANNARD CUBITT.

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