US1947806A - Lamp globe fitting - Google Patents

Description

Feb. 20, 1934. J c. SMrrH 1,947,806

LAMP GLOBE FITTING Filed Jan. 26, 1932 INVENTOR Patented Feb. 20, 1934 UNi'iED STATES PATENT OFFICE LAMP GLOBE FITTING Application January 26, 1932. Serial No. 588,892

1 Claim.

My invention is hereinafter described as employed in connection with the mounting and holding of illuminated canteen globes on gasoline pumps, etc., but it will be understood that the invention is applicable to globes of Various other types, such as those illuminated by gas, those open at their upper ends instead of at their lower ends, those open at both ends, etc. One object of my invention is to provide a fitting and holding device of such form that danger of breakage through the application of fastening or anchoring devices to the globe is minimized.

Another object of my invention is to provide 1 a globe holder and fitting of generally simplified and improved form, which is nevertheless effective to securely hold the globe in place notwithstanding high wind pressures, vibrations, etc. Some of the forms which my invention may take are shown in the accompanying drawing,

wherein Figure l is a vertical sectional view" showing a globe in mounted position; Fig. 2 is a horizontal sectional view thereof; Fig. 3 is a plan view of a modified form of clamping collar, and Fig. 4 is a vertical sectional view thereof.

Referring first to the structure shown in Figs. 1 and 2, I show a portion of a sign globe 5 having the usual flared lower end or base. The

00 pedestal-like extension of a gasoline pump or other structure is indicated by the numeral 6. A cup-like holder member '7 is secured to the extension 6 and carries set screws 8 that are adapted to be turned to clamp a globe in position in the usual manner.

Instead of having the screws 8 directly engage the glass globe 5, or directly engaging a metal ferrule snugly-fitting said globe, I provide a collar or fitting 9 which is preferably of one of the softer metals such as copper, aluminum, brass, etc. The collar is shown in Figs. 1 and 2, as of split ring form, so that it can be readily sprung over or around the end of the globe 5.

- The collar 9 has a base flange 10, a vertical wall portion 11, and an inclined wall or flange 12. The extreme edge or corner of the globe fits within the angle formed by the portions 10 and 11 of the ring, while the inclined wall 12 of the ring lies mainly in spaced relation to the globe. If the neck or opening of the globe is of small diameter relative to the normal diameter of the collar 9, the ends of the collar may overlap, the bottom flange 10 thereof being of shorter annular length than the walls 11 and 12, to facilitate the overlapping of said walls.

The set screws 8, when screwed inwardly, will engage the wall portion 12 of the clamping ring to retain it within the holder 7 and, by reason of the spaced relation of the wall 12 to the adjacent surface of the globe, will not be brought into rigid engagement with the globe, thus reducing danger of turning the screws 8 too far inwardly and fracturing the glass. Furthermore, there is yieldability present which will permit expansion and contraction of the parts through temperature changes, without fracture of the glass, since there is non-rigid comiection between the glass and the holder '7.

In Figs. 3 and 4, I show a clamping collar 15 that may be mounted in a holder in a manner similar to the holder 7. The collar 15 instead of being a one-piece split ring of spring metal as is the collar 9, is made in two parts which are hinged together at 16, so that the collar may be more conveniently applied to a globe.

If desired, fibrous or other yieldable packing material could be placed in the space between the inclined wall of the collar and the adjacent globe surface. Not only does the spacing between the inclined wall of the collar and the globe prevent rigid metallic contact of the globe with the set screws, but the pressure imparted to the collar by the screws causes the upper edge of the collar to snugly engage the globe to form a seal and to produce a bracing efiect on the globe at the upper annular edge of the collar. Furthermore, the split form of the collars permits of adaptation to globes of various diameters and to holders of various depths and diameters. The flange 10 serves not only to support the lower edge of the globe out of direct contact with the holder 7, but also serves as an anchoring member to prevent the collar being slid up on the globe through pressure of the screws or otherwise.

While the collar has been herein described as of spring-like material so that it may be sprung on the globe, particularly when the collar is made of one piece, it is also desirable to have the collar of soft metal so that even though it snugly engages the globe or is pressed into engagement therewith by the set screws, the soft metal can be compressed by the screws to a considerable extent, without breaking the globe.

If the collar be of thin strip steel, the screws 8, as shown in Fig. 1, can depress the same somewhat without causing the edges of the collar to engage the globe with excessive force, and a better holding efifect will also be secured.

I claim as my invention:

A holding member for globes and the like, comprising a metallic collar having its upper edge of restricted diameter for engagement With the side wall of a globe, and having its lower end inturned to form a flange for engagement with the extremity of the globe, that portion of the collar intermediate its upper edge and the said

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