US727892A - Tubular lantern. - Google Patents

Description

N. 727,892. Y PATENTED MAYlz, 190s.

` AG. T.l BROWN.

TUBULAR LANTBRN.

APPLICATION FILED JULY 16, 1902.

N0 MODEL. 2 SHEETS-SHEET 1`. l

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mi norms PETERS ooooooooooooooooooooooooo n c No. 727.892. v PATBNTED MAY 12, 190s.

G. T. BROWN. TUBULAR LANTERN.

v APPLICATION FILED JULY 16. 1902. N0 MODEL. SHEETS-SHEET 2.

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n L Mymffomeja UNITED STATE-s- Patented May 12, 1903.

- PATENT GEEICE. i.

GEORGE T. BROWN, OE BALTIMORE, MARYLAND, AssIeNOR OF ONEIIALE To JAMES D. BROWN, OE BALTIMORE, MARYLAND.

lTuBULARjLANTERN.

SPECIFICATION forming part of Letters Patent No. 727,892, dated May 12,1903. Application tied July 16, 1902.v serai No. 115,840. (No inode.)

To @ZZ whom it may concern:

Be it known that I, GEORGE T. BROWN, of Baltimore, in the State of Maryland, have inl' vented certain new and useful Improvements in Tubular Lanterns; and I hereby declare that the following is a full,`clear, and exact description thereof, reference being had to lhe accompanying draWings, which form part of this specification.

This invention is an improvement in tubular lanterns; and its objects are, first, to improve the construction of the tubular frame,

particularly the uprights or side tubes thereof; second, to improve the connection -of the bell to the uprights, and, third, to improve the construction of the globe-holder and con-` nection thereof with the frame. l Y

To these ends the invention consists (a) in the novel construction of the sideltubes'or uprights, (o) in novel means for securing the' bell to the uprights, (c) in novel means vof connecting the bail to the frame, (d)'inthe novel construction of the globe-holder, andY (e) in minor novel details, combinations, and

constructions of parts hereinafter described."

In the accompanying drawings I have illustrated a complete tubular lanternembodying my invention.

Figure 1 is a front viewofthecornplete lantern with one upright of the frame in section. Fig. 2 is a side'view thereof. Fig. 3 is a detail top plan view of the globeand globeholder; Fig. 4, a horizontaltransverse sectionlooking upward on line 4 4, Fig. l. Fig. 5"is a detail View of the clip connection between the upright and'font. Fig.' 6 is an enlarged sectional view of such connection. Figs. 7 and 8 are magnified views on line 7 7 and 8 8, Fig. 1. Fig. 9 is a detail viewr illustrating the mode of attachingthe bell to the uprights.

The font A may be of any'suit'able construction and provided with a collar ct, on or to which the burner may be attached in any preferred manner.v The burner B may also be of any desired construction, although I'prefer to use burners like those shown and described in my applicatiomSerial'No. 114,798, filed July 8, 1902.

Exterior to collar d is an air chamber, formed within the annular ring A', which is secured to'the top of font concentric to the collar, and to this ring A at diametrically Opposite points are secured the lower ends of the air-.tubes or uprights C, which are of novel construction and are, preferably, also vsecured at their lower ends to the top of font to give greater strength and rigidity to the lantern-frame, which comprises the font, uprights, and bell. As shown in Figs. 1 and 2, the'lower ends of the uprights may be y firmly attached to the font by means of the 4metallic clips h, which are provided with bridge portions fitted over the lower ends of the uprights'adjacent to the ring and having flattened' ends b, which can be soldered to the top of font, and having also openings in `their outer walls b2 for the passage of the lower ends of uprights, said walls h2 having depending portions b3, which are adapted to euter'slit a2 in the top of font and are bent under and against the top of font and. se-

curedby soldering, thus forming a very secure connection between the uprights and font and strengthening the font at the part subjected to most strain.

f The uprights C have lowerinwardly-curved ends C', attached to the font or air-chamber,

0`r both, as' shown, and u pper in wardly-curved ends C2, attached to the tubular stem D', to the lower end of which the bell D is centrally attached. Each upright is formedcomplete in one piece from a strip of sheet metal, preferably tin, as follows: 'Astrip of suitable length and width is 'first bent into a tube of desired diameter, preferably withja lapped seam. Then the tube is irmly heldjin af-suit- V'able clamp, and the tube ends are bent into 4readily be constructed by those skilled` in metal bending. The tubular uprights thus formed are smooth throughout both at straight portions and in the bends, forming a continuous smooth bent tube, as illustrated in the drawings, without corrugations or transverse joints or slits in the metal at the bends. Preferably the lap-joint in the tube is kept at the inner side of bends, so that the uprights in the frame appear to be made from drawnmetal tubes. After the uprights are formed, as described, they are redipped in tin, which binds the lap-joint securely and gives a fine finished appearance to the uprights.

The stem D is hollow, but closed at top, so as to cause the heated air to return through the tubes to the combustion-chamber. The bell D is of ordinary appearance and rmly attached to the lower end of the stem, so as to direct the hot air thereinto. It is also preferably of a diameter equal to the distance between the uprights at the lower end of the stem and is preferably rigidly attached to the uprights.

As shown, I employ two wires E, each of which is bent centrally into a figure-8 loop, from which the ends e2 of the wire extend in opposite directions and are attached to the edge of the bell D, which is bent thereover, as shown at d, thus firmly attaching the loops to the bell at diametrically opposite points, while the wires serve to stiffen the edges of the bell. The inner bends c of the loops in wires E are slipped over` the uprights C before the latter are iin ally attached to the stem or font, and after the bell and uprights are set in proper position the outer bends e of the 8-loops in wires E are bent into'a vertical position, as shown in Fig. l. This bending twists the wire at the center of the loop, lessening the diameter of the inner bend thereof and causing it to tightly bite the upright and bind the bell securely thereto. After the bends e are bent into vertical position they constitute eyes for the attachment of the bail F, which is connected thereto, as shown in the drawings. The wires E thus constitute the means for stiffening the bell for locking it to the uprights and for connecting the bail to lantern-frame. lhe S-loop wires could be used for attaching the bails to the uprights in lanterns having vertically-movable globes and bells. As is obvious, in the latter case the loops would not perform the functions of stiffening bell or fastening it to the uprights.

The globe-holder is composed of the baseplate G, from which rise opposite vertical wires G', connected a short distance above the base by a ring G2. The upper ends of the wires Gare unattached but each is provided with a globe-engaging device which is preferably formed integral with the vertical wire by bending it as shown, so as to form a loop g, havinga horizontal curved bar g', connected at its ends by outwardly and downwardly bent portions with the vertical Wires G. The loop is so bent that bar g will rest upon and engage the bead h at the upper end of the globe H and will also partly encircle the globe, and, as shown, the bar g' extends about onequarter around the globe. The two opposite loops clasp the globe firmly and hold it securely to the plate, while permitting it to be removed by springing the loops g apart. The holder is preferably connected to the font, as described in my applicatiomSerialNo.114,797, led July 8, 1902, being hinged at one side to a loop I, fixed to the font, and a catch c' being attached to the opposite side of base-plate and engaging a loop I on the font opposite loop I. When catch il is released, the globeholder tilts back out of the frame, as indicated in dotted lines, Fig. 2, and the globe can be readily removed or replaced or the burner lighted or extinguished.

The lantern shown and described is strong, simple, and economical in cost.

It should be understood that the tubular uprights which I have described could be used in any kind of lantern, whether the frame be rigid or tilting or whether the globe be tiltable or vertically movable, and therefore I do not restrict myself to the employment of the novel tubes or uprights in a rigid-frame lantern, nor is it essential that the globeholder be used with the particular frame described, nor that the bell-fastening and bailattaching loops be used with the particular frame or globe-holder described. Altogether they constitute a most efficient tubular lantern; but I wish to protect the Various novel features of my lantern in all applications thereof.

Having thus described my invention, what I therefore claim as new, and desire to secure by Letters Patent thereon, is

1. In a tubular-lantern frame, tubular side uprights each composed of a one-piece sheetmetal tube having its opposite ends bent on smooth unbroken curves, substantially as described.

2. An upright for tubular-lantern frames composed of a one-piece sheet-metal lappedjoint tube,having both its ends bent inwardly on smooth unbroken curves, and connected by a straight portion, substantially as described.

3. A frame for tubular lanterns composed of side uprights provided with curved ends and each composed of a one-piece lapped sheet-metal tube with ends bent on smooth curves and the lap-joint retinned, substantially as described.

4. For a tubular-lantern frame, an upright composed of a one-piece sheet-metal lappedjoint tube, having a straight intermediate portion and both ends bent inwardly on smooth unbroken curves, the lap-joint being at the inner sides of the bends, substantially as described.

5. A tubular-lantern frame composed of a base, a bell-tube, and side uprights connecting the same, each consisting of a one-piece sheet-metal tube bent at its ends on unbroken curves and respectively connected to the belltube and base, substantially as described.

6. A tubular-lantern frame composed of a base, a bell-tube, and tubular uprights rigidly connecting the same, each of said uprights IOO IIO

consisting of a'single piece of metal bent into tubular form, such tube being bent at its endsV a bell iixedly secured to the uprights of the frame by twisted wire loops, substantially as described.

9. In combination, the lantern-frame, and a bell secured to the uprights of the frame by twisted wire loops, each of said loops having two bends, respectively embracing the uprights and forming bail-attaching eyes, substantially as described.

10. In combination, the uprights of a lantern-frame, a bell,and opposite wires attached to the edges of the bell, having loops formed with two bends, one bend of each loop embracing the adjacent upright, the other bend being turned at right angles to the former t0 bind them to the uprights and form bail-attaching eyes, substantially as described.

ll. Aglobe-holder for lanterns, comprising a supporting-plate, the wires rising therefrom and attached thereto and independent opposite globe -engaging loops, respectively attached to the upper ends of said Wires, substantially as described.

l2. A globe-holder for lanterns, comprising a supporting-plate,opposite Wires rising therefrom and attached thereto, opposite independent globe engaging loops respectively attached to the upper ends of said wires, and a ring connecting the wires-below the loops, substantially as described.

13. In a lantern, the combination of' the frame, the globe-support connected thereto, comprising a base plate, opposite vertical' wires rigidly attached tothe base-plate, and opposite independent curved globe-engaging 5o loops respectively attached to the upper ends of said vertical Wires adapted to clasp thel globe and hold it removably to the base-plate, substantially as described.

'14. In a lantern, the combination of the 55 frame, and the globe-support connected thereto, comprising,` avbase-plate, opposite vertical Wires rigidly attachedto the base-plate, a ring connecting the wires above the base-plate, and opposite disconnected curved globe-engaging 6o loops on respectively the upper ends of said vertical wires and adapted to clasp the globe and hold it removably to the base-plate, substantially as described.

15.n In-colnbination, in a tubular lantern `l .with the frame, and bail, the wire loops each having two bends one bend locked to the up- .rightsand the other bend forming the bail-vdered tothe font, and provided with tongues 8o -j passing through slits in the top of font and fastened to the under side of the font-top, substantially as described.

In testimony that I claim the foregoing as my own I aftix my signature in presence of two'witnesses. V

GEORGE T. BROWN. In presence of n ARTHUR E. DowELL, JAMEs R. MANSFIELD.

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