US1555245A

US1555245A - Globe holder

Info

Publication number: US1555245A
Application number: US689888A
Authority: US
Inventors: Roland E Glavin
Original assignee: Westinghouse Electric and Manufacturing Co
Current assignee: CBS Corp
Priority date: 1924-02-01
Filing date: 1924-02-01
Publication date: 1925-09-29
Anticipated expiration: 1942-09-29

Description

1,555,245 R. E. GLAVIN GLOBE HOLDER Filed Feb. 1', 1924 2 Sheets-Sheet 1 Se t-29, 1925.

WITNESSES: INVENTOR Roland E. Glavin.

Patented Sept. 29, 1925.

UNITED STATES PATENT ounce.

ROLAND E. GLAVIN, or PITTSBURGH, PENNSYLVAN A, AssrG'NoIt To wasrmenausn ELECTRIC & MANUFACTURING COMPANY, A ooRr'onA'rroN OF PENNSYLVANIA.

GLOBF. HOLDER a To all whom it may concern:

Be it known that I, ROLAND E. GLAVIN, a citizen of the United States,- and a resident of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Globe Holders, of which the following is a specification.

My invention refers to lighting fixtures and particularly to globe holders which operate to clamp the globe in place by means of resilient fasteners in order to facilitate replacements and to minimize breakage of the globe.

One object of my invention is to provlde a globe holder which shall positively secure the globe interiorly by means of clamps which shall automatically adjust themselves to irregularities in the size and shape of the globe.

Another Object of my invention is to provide a globe holder in which the interior clamps shall be operable exterior to the fixture and shall be clamped and unclamped by a single manually operated means.

A further object of my invention is to provide a globe holder in which screws or other rigid clamping means are eliminated.

Still another object of my invention is to provide a globe holding device which shall be adapted to provide a completely closed and dust-pr0of fixture.

In the drawings constituting a part hereof in which like characters designate like parts,

Figure 1 is a view, partially in elevation and partially in section on the line I-I of Fig. 3.

Fig. 2 is an elevational View of the canopy showing the operating and locking means.

Fig. 3 is a plan view of the clamp operating device, and

Fig. 4 is a view, partially in elevation and partially in section of the globe holder as applied to a lantern and support.

The fixture comprises a light element 1 assembled in a husk or canopy 2 and a globe 3 attached thereto. A flange 4 extends inwardly from the husk 2. The fingers 5, which engage the flange of the globe 3, extend therethrough and are hinged thereto. The upper ends of the fingers 5 are looped or hinged at 7 and provide a hinged connection to a spring band 6. A third finger 8, similar in shape to fingers 5, is rigidly attached to the spring band 6 and is hinged on the flange 4. The spring band 6 is rigidly supported on the finger at the poi-ntB and movably supported in a slit 10 of the husk 2'. Thumb pieces 9 are suitably formed in the spring band 6 and extend through the slit 10 in the husk or canopy to provide means for releasing and locking the spring band. 7

The globe 3 is held by the fingers 5 against the flange 4 and the two engaging surfaces provide a dust-proof joint. The holder shown in Fig. 1 may be used for suspending a globe with one aperture therein, or it may be used for attaching a lantern canopy.

I igure 4 shows my inventionas applied for securing the base of a globe 12 to a globe ring 13 which, in turn, is mounted on a lamp post casingor support 14. The globe ring 13 is provided wit-h an inwardly projecting flange 4 upon which the finger members 5 are hinged. The spring band 6 is hinged on two of said fingers and is rigidly attached to the third finger, as shown in Fig. 3. The thumb pieces 9 on the spring band 6 extend through slits in the globe ring for operating the fingers 5.

By operating the projections 9 in the slits 10, the spring 6 is caused to expand and contract and to radially move the fingers 5 in and out of engagement with the globe. The fingers are caused to move outwardly to fasten the globe when the thumb pieces 9 are drawn together. This causes the ring band to move the hinges 7 inwardly, to move the fingers 5 radially against the inner surface of the globe and to adjust themselves to the size and shape thereof. The thumb pieces 7 are then pressed into the locking slit 11 and they maintain the spring 6 and fingers 5 in a locked position. The globe is released by forcing the thumb pieces 9 upwardly and allowing them to travel to the extremities of the slit 10, thereby expanding the ring 6 and releasing fingers 5.

Although I have described a specific globe holding device, I do not limit my invention thereto, as various modifications thereof will suggest themselves without departing from the spirit of my invention. For example, fingers 5 may be rigid or of resilient material and may be hinged to the flange 4 or movably anchored thereto by suitably bending finger members The linkage 7 may be any suitable hinge member and the ring band 6 may be shaped from round, flat or irregularly shaped stock. Other modifications will suggest themselves to those skilled in the art without departing from the spirit of my invention, the scope of which is defined in the annexed claims.

I claim as my invention:

1. A lamp fixture comprising a globe, a canopy, an inwardly extending flange in said canopy, a plurality of movable fingers extending through said flange, means on one end of said fingers for interiorly engaging said globe, an expansible band rigidly connected to one'oi' said fingers and hinged on the other fingers, means external to said canopy for contracting said ring and imparting an outward radial motion to said fingers and means formed in said canopy for supporting and locking said band.

2. A lamp fixture comprising a globe, a canopy, an inwardly extending flange in said canopy, a plurality of movable fingers extending through said flange, means on one end of said fingers for interiorly engaging said globe, an expansible band rigidly connected to one of said fingers and hinged on the other fingers, thumb pieces on said band extending through said canopy, for contracting said ring and imparting an outward radial motion to said movable fingers and slits formed in said canopy for supporting and locking said band.

3. A lamp fixture comprising a globe, a support, an inwardly extending flange in said support, a plurality of movable fingers hinged on and extending through said flange, said fingers interiorly engaging said globe, an expansible band concentric with said support rigidly attached to one of said fingers, hinges operatively connecting two of said fingers and said band and means in said support and said band for exteriorly operating and for locking said band.

4. A lamp fixture comprising a globe, a support, an'inwardly extending flange in said support, a plurality of movable fingers hinged on and extending through said flange, said fingers interiorly engaging said globe, an expansible band concentric with said support rigidly attached to one of said fingers, hinges operatively connecting two of said fingers and said band, projections on said band extending through said sup port for exteriorly operating said band and slits in said support for supporting and looking said band.

In testimony whereof, I have hereunto subscribed my name this 7th 'day of January, 1924.

ROLAND E. GLAVIN.