US498420A - Tubular lantern - Google Patents

Description

(No Model) L. P; BETTS. TUBULAR LANTERN.

Paizented Ma 30, 1893.

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" NIT-ED STATES YATENT OFFICE.

LEVVIS' F. BETTS, OF NEW YORK, Y., ASSIGNOR TO THE R. E. DIETZ COM- PANY, OF SAME PLACE, AND THE STEAM GAUGE AND LANTERN COMPANY, OF SYRACUSE, NEW YORK.

TUBULAR LANTERN.

SPECIFICATION forming part of Letters Patent No. 498,420, dated May 30, 1893.

Application filed August 10, 1891. Serial No. 402,212. (No model.)

To all whom it may concern: where the upper horizontal branches of the Be it known that I, LEWIS F. Burns, a cititubes join the depending central tube. In zen of theUnitedStates,residingatNewYoi-k, order to avoid this I strengthen the upper in the county and State of New York, have part by a strengthening piece D which coninvented a new and useful Improvement in nects the central tube with the top branches 55 Tubular Lanterns, of which the following is and side portions of the air tubes. As reprea specification. sented in Figs. 1 and 2-the strengthening piece One part of this invention relates to the D consists of a wire or rod which is arranged tubular lantern frame and has the object to against theunder side of the top branches of [0 increase thestrength and rigidity of the upthe air tubes and provided with downwardly 60 per portion thereof; another part of my inprojecting or depending end portions d which vention relates to the catch whereby the loose are arranged against the inner sides of the burner cone is fastened upon the air chamber upright portions of the air tubes, The wire and has the object to increase the elasticity or rod D is provided with a central bend or of the catch and to render its manipulation bow e which rests against one side of the cen- 65 more convenient. tral depending tube. This wire or rod is sol- In the accompanying drawings: Figurel is dered to the upper portion of the tubular an oblique side elevation of a tubular lantern frame and forms a firm connection between provided with my improvements. Fig. 2 is a the upper horizontal branches and the confragmentary horizontal section through the tral tube and between the upright side'por- 7o upper part of the lantern in line a:0c Fig. 1 tions and the horizontal top branches.

looking upward, on an enlarged scale. Fig. In the construction represented in Figs. 3 3 is an oblique elevation of the upper part of and 4 the wire or rod D is constructed witha tubular lantern showing a modified conout the central bend and extends through the struction of the strengthening device. Fig. central depending tube instead of around it. 75 4 is a horizontal section in line y-y Fig. 3. In the construction represented in Fig. 5 Fig. 5 is a side elevation of the upper part of th strengthening device is formed by a flat the lantern showing another modification of bar which is secured against one side of the the strengthening device. Fig. Gisasectional lantern frame and extends from the top part elevation of the lower part of the lantern at of one upright side portion along the side of 80 right angles to Fig. 1. Fig. 7 is a horizontal the adjacent horizontal branch, then around section through the lower part of the lantern one side of the central tube, and along the in line zz Fig. 1. Fig. 8 is a perspective side of the other horizontal branch to the top View of the catch by which the burnercone part of the other upright side portion of the 5 is locked down'upon the air chamber. tube. 5

Like letters of reference refer to like parts Erepresents the burner cone which is loosely in the several figures. fitted with its skirt upon the upper edge of A represents the oil pot, a the air chamber the air chamber a. F represents the pivoted mounted thereon, b the lower horizontal Wire catch wherebythe cone is locked down 40 branches of the air tubes secured to the top of upon the air chamber. This catch is com- 0 the oil pot and opening into the air chamber, posed of two vertical legs f f arranged on dia- B the upright portions of the air tubes, 0 the metrically opposite sides of the cone, a semihorizontal top branches thereof and C the circular bow g connecting the upper ends of central depending tube arranged between the the legs and adapted to bear upon the shoul- 5 top branches and secured thereto. All of der of the cone, and athumb-piece h formed 5 these parts may be of any ordinary or suiton the bow, as described and shown in Letable construction. ters Patent No. 397,625, granted to me Feb- The upper part of the lantern is inferior in ruary 12, 1889. In the construction represtrength and rigidity to the lower part and is sented in this patent the legs of the catch are particularly liable to become bent or broken, pivoted to the upper sides of the lower hori- IOO zontal branches of the side tubes. This renders the legs so short that the catch is not sufficiently elastic to lock easily over the shoulder of the cone. In order to overcome this difiiculty I extend the legs down to the lower portion of the air chamber and provide them with inwardly projecting pivots i which are sprung into openings formed in the air chamber. This construction increases the length of the legs and provides the requisite elasticity in the catch, thereby enabling the catch to be conveniently manipulated.

I claim as my invention-'- 1. The combination with the upright side. portions of the air tubes, their upper branches and the central depending tube, all rigidly secured together, of a strengthening bar rigidly secured to the under sides of the branches and to thecentral tube and provided with depending end pieces which are secured to the side portions of the tubes, substantially as set forth.

2. Thecombinationwiththe uppcrbranchcs of the air tubes and the central depending tube rigidly secured together, of a strengthening bar rigidly secured to the side portions and provided with a bend which extends around one side of the central tube and is rigidly secured thereto, substantially as set forth.

3. The combination with the air chamber and the burner cone seated thereon, of a catch provided with a bow bearing upon the cone and with legs extending downwardly from the bow on opposite sides of the air chamber and provided at their lower ends with inwardly projecting pivots which turn in openings formed in the side walls of the air chamber, substantially as set forth.

Witness my hand this 16th day of July, 1891.

LEWIS F. BETTS.

Witnesses:

I. J. ALLEN, FRED VAN DUY.

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