US399807A - Tubular lantern - Google Patents

Description

(No Model.)

W. WESTLAKE.

TUBULAR LANTERN.

N0. 399,807. Patented Mar. 19, 1889.

NTTED STATES PATENT Trice.

\VILLIAM \VESTLAKE, OF BROOKLYN, NElV YORK.

TUBULAR LANTERN.

SPECIFICATION forming part of Letters Patent No. 399,807, dated March 19, 1889.

Application filed April 21. 18E 8. Serial No. 271,485. (No model.)

If 0 all whom it Hwy concern.-

.Be it known that I, \VILLIAM \VESTLAKE, of Brooklyn, county of Kings, and State of New York, have invented certain new and useful Improvements in Tubular Lanterns, of which the following is a full, clear, and exact descrlptlon, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

My invention relates to the well-known general class of tubular lanterns or tubular lamps, and has for its object the provision or production of a lantern or lamp of the class named wherein the globe may be easily and quickly raised or lowered and securely held without the aid of springs, wherein the light will. be directed to best advantage, and wherein various advantages in the matters of construction and operation will be secured, as will be herein first fully explained, and whereof the prominent features of improvement will be pointed out in the claims.

In the accompanying drawings, forming part of this specification, Figure 1 is an elevation of a lantern completed in accordance with my invention and involving my improvements. This may be denominated a front elevation, and shows the globe seated on the perforated bottom plate, as when the lantern is in use. Fig. 2 is a view like Fig. l, but showing the opposite side of the lantern and the globe raised to afford access to the wick or flame. Fig. 3 is a view in side elevation, omitting the reflector and showing the globe in position to be detached, the tubes being broken away. Fig. i is a plan of the top of the globe, showing the single lug or projection thereon. Fig. 5 is a plan of the bottom of the lantern or lamp, illustrating the spread of the open base.

In all the figures like letters of reference wherever they occur indicate corresponding parts.

A is the globe or flame-protector; .l B, the side tubes which conduct air down to the under side of the burner-cone; C, a central airpipe communicating with tubes B B, and D the dome located above the globe.

The globeA rests upon a perforated bottom plate, E, which in turn rests upon the burnercone. At the upper part of the globe, and

formed therewith, is a projection, u, the purpose of which is to engage with or ride upon or against inclined bearings attached to the dome I). These liearings are shown at l) and (1. They may be made of wire or other suitable material and in one or more pieces. At the front they are separated, as shown in Figs. 1 and 3, by a distance sufficient to permit the top of the globe to be canted out between them, and on the opposite side they approach each other more or less closely. The portion 1) is inclined downwardly, proceeding from the front opening or space. By turning the globe to the right (in the example shown) the projection a rides beneath the section I) and crowds the globe firmly down to its seat on the bottom plate, thus locking the globe in place and holding the burner, burner-cone, and bottom plate in working position. From this position, by turning the globe to the left until the projection a. is clear of the section b, it is unlocked, and may then be detached, as indicated in Fig. 3; or by further turning it to the left the projection to is made to ride upon the section 0, which inclines upwardly, and thus the globe is raised from off its seat, as shown in Fig. 2. This affords access to the wick for lighting or to the flame for extinguishing.

As will be seen, in order toraise or lower, lock or unlock the globe, it is only necessary to revolve the same, and the construction obviates the use of springs or other complicated locking and holding devices.

F is a reflector calculated to direct the light from the flame down toward and beyond the base of the structure. This may be made of plain or fancy metal, and is sustained upon the inclined side tubes by short guidepieces or extensions (Z (I. It is mounted above the position of the flame, but below the top of the globe, so that light may proceed from above aswell as from below the reflector. It is easily adjusted to place or removed. It

operates as a complete guard for the globe, and when in place it also operates to guide the globe while being adjusted up or down. That the structure may be used to best advantage to throw the light downwardly, (where it is most required) the globe is made small at the bottom, preferably a trifle less in diameter there than at the top, which is the reverse of former constructions. This enables me to make the bottom plate correspondingly small, and consequently to obviate the production of so much shadow.

. The 0ilpot G, instead of being spread out horizontally, as in other lamps, is also contracted in diameter to about that of the bot tom plate, so as not to intercept the light.

The base of the lantern or lamp is made open to permit the passage of light. It is composed ot' two wires, 6 c, or equivalent strips, suitably bent to afford the desired spread, and secured to the sides of the oil-pot by solder or otherwise. Of course the open base might be made of one piece; but it is preferred as shown, because of the ease with which it may be made and applied.

The parts being assembled as in Fig. 1, the reflector directs the light downwardly, and, being slightly inclined, will direct it beneath the oil-pot in such a way as to illuminate the entire space below the structure when carried in the hand. All the parts are simple and durable and the improved structure well cal culated to answer the purpose or object of the invention, as previously set forth.

Having now fully described my invention,

what I claim as new herein, and desire to secure by Letters Patent, is

1. In a tubular lantern or lamp, the combination, with the globe having a projection at top, of the two inclined Ways secured to the dome, the said ways being separated from each other at the front and arranged to operate substantially as shown and described.

2. In a tubular lantern or lamp, the combination of an annular reflector surrounding the globe mounted upon the side tubes above the position of the flame and below the top of the globe, the oil-p0t, and an open base applied on said oil-pot, substantially as and for the purposes explained.

3. In a tubular lantern or lamp, the combination of an annular reflector mounted upon the side tubes, contracted bottom plate, contracted oilpot, and open base secured to the oil-pot, substantially as and for the purposes set forth.

In testimony that I claim the foregoing I have hereunto set my hand in the presence of two witnesses.

WILLIAM WESTLAKE. Vitnesses:

W. J. MORGAN, WORTH OSGOOD.

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