US1067752A - Electric shade-carrier. - Google Patents

Description

J. H. ORMROD & W. J. PURDUE. ELECTRIC SHADE CARRIER.

APPLIOATION FILED OUT. 11, 1912.

1,067,752. Patented July 15, 1913.

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JAIVIESI-IEBER ORMROD AND WILLIAM JOHN PURDUE, OF WELLINGTON, NEW ZEALAND.

ELECTRIC SHADE-CARRIER.

Applicationfiled October 11, 191 2.

To all whom it may concern Be it known that we, JAMES Hanna ORM- ROD and WVILLIAM JOHN PUnoUn, subjects of the King of Great Britain and Ireland, residing at VVellingto-n, New Zealand, have invented anew and useful Improvement in Electric Shade-Carriers; and we do hereby declare the following to be a full, clear, and exact description of the same.

This invention relates to shade carriers for electric lamps and has for its object the provision of improved means whereby the shade of an electric lamp may be easily and safely secured and removed.

According hereto the shade carrier consists of a hinged attachment instead of the usual screw band or nut. Such attachment consists of a ring which is divided into two parts forming approximately two semi-circles. At the points where the semi-circles join to form a ring are projections. The projections on each side 01: the ring are p1voted, and those upon one side are extended beyond the pivot to form finger and thumb pieces and are retained apart by means of a spring the action of which normally retains the parts 01": the ring together. The internal side of the ring is provided with sharp ened edges at the top and bottom or is internally threaded for the purpose of gripping the threads upon the lamp holder. @n pressing such finger and thumb pieces the ring opens on its hinges and when it is de sired to place a shade upon a lamp holder, the shade is placed thereon in the ordinary way, and the open ring is slipped over the screw threads of the lamp holder until the ring bears against the shade. On releasing the finger and thumb pieces the sharpened edges of the internal portion of the ring will grip upon the screw threads and thus the shade will be securely held in position. To remove the shade the ring is opened by pressing the finger and thumb pieces t0- gether, and on slipping the ring past the screw threads the shade is easily removed.

The invent-ion is described in detail in the accompanying drawings forming a part of this specification wherein Figure 1, is a side elevation of a lamp holder with a shade supported by our invention. Fig. 2, is an elevation of the shade carrier. Fig. 8, is an elevation of one half of the shade carrier. Fig. l, is a perspective View of the shade carrier. Fig. 5, is a Specification of Letters Patent.

Patented July 15, 1913..

Serial No. 725,286.

cross section through the shade carrier showing the sharpened projections in a suitable :Eorm.

Similar numerals of reference indicate similar parts throughout the drawings.

The shade carrier consists of a ring 1 composed of approximately semi-circular parts 2 and 8. The part 2 is provided with a downwardly projecting member 1 at one end thereof while the part 3 has a similar member 5 upon a corresponding end thereof. The other end of the part 2 is provided with a downwardly projecting member 7 while a similar member 8 is provided upon the other corresponding end of the part 3. It is seen that when the two parts are placed together the members 1-. and 5 will be opposite each other and similarly the members 7 and S will be opposite each other. The members 4: and 5 are pivoted at 6 while the members 7 and 8 are pivoted at 9. The members 7 and 8 have extensions 10 and 11 shaped so as to make suitable finger and thumb pieces. These extensions are normally kept apart by a spring such as 12, and the semi-circular parts are then in such a position as to make a closed ring (see Figs. 2 and 1). The internal portion of the parts 2 and 3 may be threaded as shown in Fig. 3 in order to engage the screw threads of the lamp holder. In Figs. 4: and 5 sharpened edges 13 and 1 1 are shown and are adapted to grip on the screw threads of the lamp holder.

Referring now more particularly to Fig. 1, the lamp holder 15 is provided with the usual screw threads 16 and ring stop 17. To place the shade 18 on the holder all that is necessary to do is to slip it past the screw threads up against the ring 17. The finger and thumb pieces of the shade carrier are then pressed together, thus opening the semi-circular parts, which form the ring of the shade carrier, to form a larger ring. 011 pushing the shade carrier over the screw threads and up against the shade 18 and then releasing the finger and thumb pieces the semi-circular parts of the shade carrier will close upon the threads of the holder and the threads in the ring 1 will grip into the threads 16. In the case of a carrier having the sharpened edges 13 and 14 these edges will grip upon the screw threads, thus holding the shade in position. To remove the shade the cycle of operations is reversed.

What we claim as our invention, and desire to secure by Letters Patent, is

1. An electric shade carrier consisting of a ring composed of two semi-circular parts said parts having projections upon each side, said projections being pivoted together, a spring whereby the semi-circular parts are kept together, and extensions forming finger and thumb pieces for operating the device, substantially as described.

2. 'An electric shade carrier, consisting of a ring composed of two semi-circular parts, said parts having projections on each side, said projections being pivoted together, a spring whereby the semicircular parts are kept together, extensions to the said projections forming finger and thumb pieces for operating the device, substantially as described.

3. An electric shade carrier consisting of a ring composed of two semicircular parts, said parts having projections on each side said projections being pivoted together extensions to the projections on one side and normally kept apart by a spring, said extensions forming finger and thumb pieces for operating the device, and a sharpened edge or edges upon the inner side of the semicircular parts to grip the screw threads on the lamp holder, substantially as set forth.

4. An electric shade carrier consisting of a ring composed of two semi-circular parts, said parts having projections on each side said projections'being normally kept apart by a spring, extensions to the projections said extensions forming finger and thumb pieces for operating the device, and screw threads upon the internal part of. the-semicircular parts to grip the screw threads on the holder, substantially as set forth.

In testimony whereof, we have signed our names to this specification in the presence of two subscribing witnesses.

JAMES HEBER ORMROD. WILLIAM JOHN PURDUE. WVit-nesses SYDNEY HAMLET HIcGs,

EDMOND PATRICK ODoNNELL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washingtom l). C.

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