US401490A - Elias g - Google Patents

Description

E. G. GLAZIBR.

TUBULAR LANTERN. Y

v(No Model.)

110.401,490. Patented Apr. 16, 1889.

` 0.3575707 gym.

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UNiTED STATES ATnNT OFFICE.

ELIAS O. GLAZIER, OF ROCHESTER, YEWT YORK, ASSIGNOR TO THE STEAM GAUGE AND LANTERN COMPANY, OF SAME PLACE.

TUBULAR LANTERN.

SPECIFICATION forming part of Letters Patent No. 401,490, dated April 16, 1889.

Application led June 13, 1887. Serial No. 241.150. (No model.)

To all whom t may concern:

Be it known that l, ELIAS O. GLAZIER, of the city of Rochester, in the county of ilionroe and State of New York, have invented a new and useful Improvement in Tubular Lanterns, of which the following is a specification.

This invention relates to that class of tubular lanterns or lamps which contain a tubular frame, in the lower portion of which the oil- Io pot and burner are supported, and which are provided with a loose globe which can be raised from the burner when access is required to the latter for turning the wick, lightingand extinguishing the lamp, and other manipulations.

The object of my invention is to provide the lamp with a simple and convenient means for raising the globe and for sustaining it in an elevated position, and for guiding it back 2o to its seat on the lower portion of the lamp.

My invention consists of the improvements which will be hereinafter fully described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a sectional elevation of a lamp provided with my improvements. Fig. 2 is a fragmentary side elevation of the globe-lifting device on an enlarged scale. Fig. 3 is a horizontal section in line @c cc, Fig. 2. Fig. 4 is a perspective 3o View of the globe-lifting device.

Like letters of reference refer to like parts in the several figures.

The lamp illustrated in the drawings, to which my invention is applied, is a tubular 3 5 globe street-lamp, the general construction of which is well known and which is described and illustrated, for instance, in Letters Patent No. 218,917, granted to Lewis F. Betts August 26, 1879.

4o In .said drawings, A represents the postsocket at the base of the lamp structure; B B, the air-tubes; O, the lamp-top; D, the removable air-chamber which envelops the oil-pot cl, provided with a burner, d, andF the globe.

The latter can be raised in the lamp-frame, so

that the burner can be exposed and the airchamber D be freed from the weight of the globe and be removed from the lamp-frame with the oil-pot and burner, if required. All of these parts are old and well known.

F represents a lifting-lever pivoted to the inner side of one of the air-tubesBin bracketbearings f f, secured to the same. The inner arm, g, of the lever F extends toward the base of the globe, and carries at its inner end a hook` or globe support, G, in which the globe rests and which is hung loosely to the inner end of the lever F. The hook or globe support G bears partly against the outer side of 'the globe and extends underneath the base of 6o the globe and upwardly on the inner side of the latter, as clearly represented in Fig. 2. The outer arm, h, of the lever F rests snugly against the side of the tube B, and is preferably constructed of spring metal or other elastic material. In the normal position of the lever F its outer arm, h, stands inwardly of the crown-lineiA of the tube B, as represented in Fig. 3.

When the globe rests on the removable air- 7o chamber D, as represented in Fig. 1, the outer arm, h, ot' the lifting-leverF is elevated. When it is desired to raise the globe, the outer arm,

h, of the level.` F is depressed, thereby raising the inner arm, g, hook G, and the globe rest 75 ing thereon. The upper end of the globe is guided during this movement in the lamp-top C. Just before the globe reaches its highest position the outer arm, h, of theleverF passes the crown-line 'i of the tube, and then springs 8o inwardly to the position represented in Fig. 2. The lever F, in bearing against the convex side of the tube, sustains the globe in its elevated position and renders it impossible to lower the globe except by applying sufficient force to the outer arm, h, of the lever to cause it to pass over the convex or crowning side of the tube. lVhen this is done, the globe is low ered and guided by the hook G to its seat upon the air-chamber D. 9o

The inner arm, g, of the lifting-lever forms a guide-link which causes the lower end of the globe to iind its seat upon the supporting-rim of the air-chamber D, so that upon lowering the globe the latter is seated upon its support without requiring especial care or attention.

My improved lifting device is very simple in construction and very desirable, especially in streetdanips, for sustaining the globe in an elevated position, thereby affording access to the interior of the globe for Cleaning the saine, and permitting the burner to be reaohed for lighting and extinguishing the lamp, and the latter to be removed from the frame, if required.v

I am aware that a lifting-lever engaging under the supporting-plate of a verticallymovable globe is not new, and I do not claim -such construction.

I claim as my invention l. The combination, With the tubular lamp` frame and the globe made vertically movable therein, of a spring lifting-lever pivoted to one of the side tubes and springing over the Convex side of the tube to lock the globe in its raised position7 substantially as set forth.

2. The combination, With the tubular lampframe, of a removable air-chamber, D, containing the oil-pot and burner, a loose verticallymovable globe, E, resting on said airehamber, a guide-link pivoted to the tubular frame, and a globe-supporting hook hung to the inner end of the guide-link and extending under the bottoni edge of the globe and upwardly on the inner side thereof7 said hook entering Within the rim of the air-ohamber When the globe is seated thereon, substantially as set forth.

Vitness my hand this 7 th day of June, 1887.

ELIAS C. GLAZIER.

Witnesses:

"`P. L. SALMON,

W. P. MoKILLIP.

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