US372546A - Lantern - Google Patents

Description

(No Model.)

I. J. MAHLER.

LANTERN.

No. 372,546. Patented Nov. 1, 1887. 2 9

UNITED STATES ATENT Fries.

ISAAC J. MAHLER, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO ALPHONSE DE RIESTHAL, OF SAME PLACE.

LANTERN.

SPECIFICATION forming part of Letters Patent No. 372,546, dated November 1, 1887.

Application filed April 23, 1887. Serial No. 235,670. (No model.)

To aZZ whom it may concern:

Be it known that 1, Isaac J. llIAHLER, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented new and useful Inlprovements in Lanterns, of which the follow- 1ng IS a specification.

This invention has for its object to provide a side-tube lantern with novel means t'orlifting and holding the globe and its supporting-cap for lighting or extinguishing the burner, and to provide novel means for connecting the globe with the movable supporting-cap,whereby the globe can be quickly removed for cleaning or other purposes and be conveniently replaced. The objects of my invention I accomplish 1n the manner and by the construction and combination of devices hereinafter described and claimed, reference being made to the accompanying drawings, in which Figure 1 is a vertical sectional elevation of atubular lantern embodying my invention; Fig. 2, an elevation of the upper part of the lantern; Fig. 3, a detail perspective view of the globe-supporting cap and its clampingring; Fig. 4, a central sectional view through the vertical tube at the top of the lanternframe.

In order to enable those skilled in the art to make'and use my invention, I will now describe the same in detail, referring to the drawings, where- The'numeral 1 indicates the oil-fount; 2, the burner; 8, the side tubes; 4, the vertical tube connecting with the upper ends of the side tubes; 5, the globe; 6, the perforated airdistributer at the lower end of the globe, and 7 the globe-supporting cap having a tubular extension, 8, adapted to slide vertically on the tube 4.

The perforated air distributer 6 is provided on lts upper side with spring-fingers 9, adapted by pressure to engage the internal surface of a shoulder, 10, at the lower end of the globe, ior detachably securing said distributer to the globe, whereby the distribnter can be quickly sprung from position for the purpose of clean mg the globe, and then be conveniently sprung back into engagement with the said shoulder 10, and be thereby retained in place. The

springfingers which detachably secure the airdistributer to the globe are secured to the distributer at some distance from its periphery, so that the fingers engage the interiorof the globe, and are therefore entirely out of the way and protected from disarrangement and injury.

The support for suspending the globe from the cap 7 consists of wire, in two pieces, one piece,11,being bent into semicircular form and turned into opposite eyes, 12, and then curved outward, as at 13, and extended verticallyand soldered or otherwise secured at the extremities to the cap. The other wire, 14, is of semicircular fonn, and is hinged at one end, 15, to one of the eyes 12, and,, at the other end is provided with a hook, 16, to engage and disengage the opposite eye. The wires engage beneath an annular shoulder, 17, at the top end of the globe, and the outward curves 13 accommodate the said shoulder at the points where the wire 11 is bent up to the cap. By unhooking the semicircular part let the globe can be quickly removed and replaced, and as the wires underlie the shoulder 17 the globe will be thereby raised when the cap 7 is elevated. To elevate the cap and globe and hold them in that position for lighting or extinguishing the burner, I provide a yoke-shaped wire, 18, the two spring-arms 19 of which extend down through two perforations, 20, in the top cap or wall of the vertical tube 4-, and are then, as here shown, bent inwardly, as at 20, and extended straight downward and laterally and joined at their lower ends to the cap 7. To permit vertical movement of the arms of the yoke 18, the tube 4 is provided at opposite sides with vertical wedge-shaped slots 21, in which move the lateral lower ends, 22, of the spring-arms of the yoke. yoke to be elevated, as in Fig. 4, the bends 20 will be above the top cap or wall of the tube 4, and the lateral ends 22 will be forced by a wedging action into the narrowest part of the wedge-shaped slots 21, so that the globe is thereby held in its elevated position. If the yoke be depressed, the lateral ends 22 are released and the wider portions of the yoke that is, the parts above the bends 20-are cramped toward each other and bind tightly against the outer edges of the perforations 20,

Assuming the ICO so that the yoke is thus wedged in said holes, and the globe thereby held in its lower position. By this means the globe can be quickly raised for such purposes as lighting or extinguishing the burner or removing and replacing the globe.

The construction of the yoke, as here shown and described, is such that it is wedge-shaped, the upper portions of the two arms being separated' farther apart than the lower portions of the arms, which is effected by reason of the bends Thus the bends fall above the top cap or wall of the tube 4 when the yoke is raised, while when the yoke is lowered those portions of the spring-arms which are farthest apart are wedged in the perforations 20.

The construction described dispenses with i all catches and other extraneous contrivances -such as latches and set-screws-for locking the lifting device for a lantern-globe in its raised or lowered position, and consequently the cost of manufacture is reduced. It also enables the globe and air-distributer to be raised from the bottom, either separately or together, the globe, when pushed up, being held in an elevated position, as already described.

Inasmuch as slots 21 would afiord passages for external air down into the globe and disturb or extinguish the flame from the burner, I provide the tubular extension 8 of thefcap 7 with two upward elongated extensions, 23, which cover the slots, and thus prevent the entrance of sudden gusts of wind.

The vertical tube 4 is provided at opposite sides with vertical ribs 24, and the tubular extension 8 of the cap 7 is furnished with corresponding grooves, 25, engaging therewith, whereby the cap is accurately guided in its vertical movements on the tube, and is prevented from turning or rotating thereupon, thus keeping the parts in proper relative position for certainty of operation, and at the same time preventing the globe from turning by reason of its connection with the cap.

Having thus described my invention, what I claim is- 1. Theconibination, with theglobe-supporting cap and the globehaving an annular shoulder around its top, of the'two wires, onebent into semicircular form and into opposite eyes, and then vertically and engaged with the said cap, and the other wire bent in semicircular shape, hinged to one e e, and having a hook to engage the other eye, substantially as described. r

2. The combination of the stationary vertical tube 4, provided with opposite side slots, 21, and having a top wall containing two perforations, 20, aglobe-supporting cap, 7, having a tubular extension, 8, sliding on the exterior of the slotted tube, and the spring-arms 19, provided with the inward bends 20, and extending downward through the said perforations inside the stationary tnbe, and having their lower ends extending laterally in an outward direction through the slots in said tube, and secured to the globe-supporting cap outside the tube, substantially as described.

3. The combination, with the top tube having the vertical wedge-shaped slots 21, of the globe-supporting cap and a yoke having its lower ends bent laterally and attached to the cap,and when elevated wedging in the narrow parts of the slots, substantially as described.

4. The combination,with the vertical tube 4, having a perforated top and wedge-shaped side slots, 21, of a vertically-movable globe-supporting cap, 7, and a yoke, 18, having the inwardly-bent spring-arms 19, passed down into the tube 4,and having their lower ends secured to the globe-supporting cap to move in theside slots of the tube, said spring-arms wedging the yoke in place when lowered, substantially as described.

5. The combination, with the vertical tube 4, having a perforated top and wedge-shaped side slots, 21, of a vertically movable globe-sup porting cap having a tubular extension,8, provided with elongated side extensions, 23, to cover said slots, and the yoke l8,having two inwardly-bent spring-arms, 19, passed through the tube 4, and having the outwardly --bent lower ends,22,secured to the globe-supporting cap and adapted to move in the slots of the vertical tube, said outwardly-bent ends wedging in the narrow parts of the slots when the globesupporting cap is raised, substantially as dcscribed.

In testimony whereof I affix my signature in presence of two witnesses.

' ISAAC J. MAHLER.

Witnesses: r

J AMES L. NoRRIs, J. A. RUTHERFORD.

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