US177422A - Improvement in lanterns - Google Patents

Description

R. W. PROCTER.

LANTERN.

Patented May 16, 1876.

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N.PETERS, PHOTO LITNDGRAPH UNITED S A ES PATENT OFFICE.

ROBERT W. PROCTER, CLIFTON, NEW YORK.

IMPROVEMENT m LANTERNS.

Specification forming part of Letters Patent No. 177,422, dated May 16,1876 application filed I March 31, 1876.

To all whom it may concern:

Be it known that 1, ROBERT W. PROCTER, of Clifton, Staten Island, New York, have invented an Improvement in Lanterns, of which the following is a specification, reference being had to the accompanying drawings forming part of the same.

Figure 1 is an exterior side view of a lantern containing my improvement, and Fig. 2 is a vertical central section of the same.

My invention relates to that description of lanterns in which the light is very completelyprotected against the movement of the exter-' nal air, so as to be prevented from being extinguished thereby, and more particularly to lamps designed for mast-heads and other lights on board ships and other vessels, when they are subjected to the action of high winds and to violent movement and agitation from the motion of the vessel; and consists in the combination, with the lamp inserted and held in the stationary bottom of the lantern by spring-catches or other suitable device, of a supplementary movable bottom, whereby the lower end of the body of the lamp is entirely lantern through an opening in the stationary bottom 61, and secured in place by several spring-catches, b, in the ordinary way. 0 is a supplementary movable bottom, preferably hinged on one side at c, and provided on the opposite side-with a secure fastening or look,

d. Any suitable device for this fastening may be used, only it should be one that is entirely secure. D is the glass through which the lightis thrown from the front of the lantern.. It should be cemented in its place with air-tight joints, and, for convenient construction, as well as to protect it against accidental Violence,

it should be set in a recess, as shown in the drawings. The apertures s for the admission of air to feed the lamp should be near the bottom, on the side opposite theglass, where they will not be subjected to the direct force of the wind, the side opposite the glass being made flat, so that it may be secured to a plane support.

The ventilating-apertures e at the top of the lantern are protected by the overhanging rim 9. The conical roof above the dome is formed of two concentric walls, h it, both joined to the dome, thus inclosing an air-chamber, open only at the top. The wall h is provided with ventilating-apertures 2'. By this arrangement the air which may' be blown in through these apertures by the force of the wind is prevented by the inner wall h from being thrown upon the flame of the lamp, but is thereby deflected upward and out of theapertures 0, thereby, instead of doing mischief, contributing to create a draft of air upward from the bottom of the lantern, thus increasing the supply of air to the flame through the apertures s. j is a shield or curtain which hangson'the inside of the lantern, down over the apertures 8, whereby the air, as it enters the said a'pertures,'is deflected downwai d, and not permitted to blow directly on the flame of the lamp, whereby in a high wind the lamp-flame might be extinguished.

What I claim as my invention, and desire to secure by Letters Patent, is- Y The combination, in a lantern, of the body A, lamp B, secured in the stationary bottom a by suitable fastening, and the movable supplementary bottom 0, allconstructed to operate as and for the purpose described.

In witness whereof I have hereto set my hand this 27th day of March, 1876.

, ROBERT WM. PROCTER.

Witnesses:

B. S. CLARK, A. S. Frron.

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