US1415633A - Lantern - Google Patents

Description

W. S. HAMM AND F. A. SCHUETZ.

LANTERN.

APPLICATION FILED JULY 8; 1919.

Patented May 9, 1922.

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UNITED STATES PATENT DFFIQE.

WILLIAM S. HAMM, OF HUBBARD WOODS, AND FRANK A.

SCI-IUETZ, OF CHICAGO,

ILLINOIS, ASSIGNORS TO THE ADAMS & WESTLAKE COMPANY, A CORPORATIGN OF ILLINOIS.

LANTERN.

Specification of Letters Patent.

Patented May 9, 1922.

Application filed July 8, 1919. Serial No. 309,334.

To all whom may concern.

Be it known that we, lVILLi'AM S. I-lann and FRANK A. SCHUETZ, citizens of the United States of America, and residents, respectively, of Hubbard l Voods, county of Cook, State of Illinois, and Chicago, county of Cook, State of Illinois, have jointly invented certain new and useful Improvements in Lanterns, of which the following is a specification and which are illustrated in the accompanying drawings, forming a part thereof.

The invention relates to lanterns especially adapted for use by trainmen. Lanterns for this purpose must be dependable under the most trying conditions known, since in addition to withstanding all degrees ofv air velocity they must remain lighted throughout signals of various kinds and in all positions.

In the past the only lanterns successful in this service have been those burning signal oil. A lantern which would burn kerosene and give reliable service for trainmen has not been produced prior to the present invention, though that disclosed in United States Patent No. 1,341,122, granted to us May 25th, 1920, for lantern burners, successfully withstands many of the adverse conditions of the service.

The object of: the present invention is the provision of a lantern which will burn kerosene and give reliable service when in use by trainmen.

An embodiment of the invention is disclosed in the accompanyingdrawings, in which Fig. 1 is an elevation, partly in section; and

Fig. 2 is a section on the line 2-2 F i 1.

s shown the lantern comprises a base 10, containing the font and burner 30, and a guard frame 11 which also supports the lantern top. The top comprises a dome 12, having a breast 13 hinged to the guard frame, as at 14, and provided with a latch, as 15, to prevent motion about the hinge.

The globe 16, seated in the base, is held in place by the globe-holder 17 slidable in the dome and pressed downwardly against the top of the globe by a spring 18 seated on an annular flange 19 which loosely engages the side walls of the dome. To limit the same general type as that shown in the part out to lV. S. Hamm, of July 27, 1909, Reissue No. 12,995, but is longer, depending considerably below the level of the margin of the breast, the globe being correspond ingly shortened, and of greater diameter at its upper end. The downward flare of the holder brings its lower portion over the upper end of the globe.

The globe-holder is circular and comprises a downwardly and outwardly flaring portion 21, providing a restricted opening 22 into the dome; a short vertical portion 21' which enters within the dome when the top is closed; a further flaring portion to which the numeral '17 is applied; a vertical por tion 23; a flaring bottom 24; an instanding annular flange 25; and an upstanding hield ring 26 at the inner margin of this flange. A pair of baiiie plates are shown at 27 as crossing the upper end of the globe-holder, as is usual in lanterns of this general type.

For the admission of air the lower vertical portion of the globe-holder is provided with perforations at 28, located preferably below the plane of the bottom edge of the breast 13. A eat for the globe-holder upon the globe is provided by the annular flange 25, which is shown as spaced above the lower edge of the portion 24 of the globe-holder. The top of shield ring 26 stands level with or above the highest perforations. Being spaced apart from the perforated wall the shield forms a pocket into which the air enters and which is sufficiently commodious to cause a breaking up, diffusion and checking of the currents. As a result there is always a substantial volume of fresh air within the chamber enclosed by the globe-holder which will feed the flame whenever conditions exist which cause a downward movement of vapors within the globe. The comparatively quiet tate of this volume of air prevents material disturbance of the flame.

The burner, designated generally by the reference numeral 30, may be of any desired type without departing from the scope of the claims, though the form disclosed in Patent No. 1,341,122, granted to us May 25th, 1920, for lantern burners, has been found in practice to produce the most satisfactory results when used in connection with the lantern herein described.

We claim as our invention 1. In lantern, in combination, a dome, a breast projecting outwardly from the dome, a wall extending downwardly from the breast and having air ports bolowthe margin thereof, and an upwardly contracting shield ring offset inwardly from the wall and facing the ports therein, the upper margin of the shield being approximately 011 a level with the upper portions of said ports.

2. A lantern comprising a base, a globe and a dome and having air induction ports in the base and above the globe, and a shield within the lantern body and facing the upper ports, the upper margin of the hield being approximately on a level with the upper portions of such ports.

A lantern comprising a base, a globe and a dome andhaving air induction ports in the base and above the globe, an annular flange extending inwardly below the lastnamed ports, and a shield extending upwardly from the inner margin of the flange and terminating approximately on a level with the upper portions of said last-named ports.

4. In a lantern, in combination, a dome, a globe-holder within and extending below the dome and having perforations in its lower portion, an annular flange extending inwardly from the lower portion of the globeholder for engagement with the upper edge of the globe, and an upstanding shield ring secured to the inner edge of said annular ring, the .upper margin of the shield being approximately on a level with the upper portion of the named perforations.

5. In a lantern, in combination, a dome, a globe-holder in said dome having a restricted opening into said dome and increasing in diameter downwardly to a size substantially equal to the outside diameter of the top of the globe and having a vertical portion of such size provided with perforations, an annular ring secured at its outer edge to the lower portion of aid vertical portion of the globe-holder, and a shield ringsecured to the inner edge of the annular ring providing an annular space between said per-- forations and said shield ring, the upper margin of such ring being approximately on a level with the upper portion of said perforations.

6. A signal lantern adapted for use of a light fuel oil such as kerosene, comprising, in combination, a base having air induction port open to the atmosphere, a burner for light fuel such as keresene, a globe inclosing the burner and having an open upper end of substantially greater cross-sectional area than is necessary to discharge theret-hrough the vapors of combustion. a dome covering the upper end of theglobe and having an annular series of air induction ports in its base, and a shield plate facing the lastnamed ports.

WILLIAM S. HAMM.

FRANK A. SCHUETZ.

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