US449978A - Oliver sweeney - Google Patents

Description

(No Model.)

0. SWEENEY.

- LAMP.

No. 449,978. Patented Apr. 7,i1.891.

W/TNESSES:

w @M1/@ff ATTORNEYS UNiTRn STATES e VPATENT OFFICE.

oLivnR swEENEv, or NEW YORK, N. Y.

LAMP n SPECIFICATION forming part of Letters Patent NO. 449,978, dated April 7,1891.

Application tiled November 14, 1890:. Serial No'. 371,452. (No model.)

To all whom it may concern:

Be it known that. I, OLIVER SWEENEY, of Vthe city, count-y, and State ot New York, have invented a new and Improved Lamp, ot` which the following is a full, clear, and exact dcscription.

The present invention is an improvement on t-he lamp for which Letters Patent of the United States were granted to me on May 18', 1883, No. 277,808.

The object of the present invention is to provide an improved means ot' suspending the lamp and to improve the details of the construction with a view of adapting them to the means of hanging the lamp.

The invention consists in the novel construction and combination of parts, as hereinafter described, and dened in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in ail the figures.

Figure l is a partly sectional elevation ot a lamp embodying my improvements. Fig. 2 is a view of the hanger portion thereof. Fig. 3 is a horizontalsection on linen: ot Fig. 2, and Figs. 4, 5, and 6 are det-ail views.

The oil-reservoir A ot the lamp is secured to the base B, so that the upper end h ot' the tube E, which is united to the said cap by a threaded connection. From the lower end of the cap D extends the housing D of a spiral spring F, which surrounds the casing G, which I serves to space and maintain in proper position cork-valves 7L 71.', carried by the rod H, the valve 7L being normally held to its seat by the spring F. The rod H extends atits lower end into the upper end ot' the base B forcentering the said rod, and at its upper end it extends into a cap or socket I, that is loosely fitted within the tube E, and said rod H is preferably made hollow to admit air to the y interior of the lamp. The tube E is formed vwith vertical slots c, and the socket I is formed with transverse apertures z', the said apertures permitting air to readily enter the hollow rod I-I.

Aloose collar J is fitted on the tube E for ver-.

tical movement thereon, and rests on the head or cross-bar 2'. of socket I, which cross bar, when the collar .I is forced downward to operate the valve-rod H, as hereinafter explained, will be guided in the slots c. A pin c extends transversely across the tube E and projects beyond the same, and the collar J is .formed with diametrically-opposite recesses j, which, when broughtinto lines with the pin c', will permit the said collar to be-moved downward, and with it the socket I and rod H, thus opening the valve h and closing the valve h. A partial turn ot the collar when brought below the pin e will bring the recessesj out of line with the pin, and the collar will thus maintain the valve h open against the tension of spring F. An additional aperture i2 may be provided for the pin i', permitting the latter to be shifted in the event of changes inthe tension of the spring. Vith the valve h thus held open oil directed to the cup-shaped cap D will find its way readily to the interior of the reservoir. This construction enables me to employ a hanger for the lamp without affecting the valve-operating devices, the latterbeing in the main the same as shown in my prior patent, hereinbefore referred to.

The suspension devices are as follows: The upper end of the tube E is formed with a spherical head E', which is adapted to the hanger L. The hanger is provided with a ring Z, or is otherwise suitably formed at its upper end forsuspension from a hook or other device, and at its `lower end Z is formed a concavcd seat l2 for the spherical. head E of the lamp, the side of the scat being Open, as at Z3, for the entrance of the tube E. With this construction the lamp, it is evident, when suspended, will always assume a vertical position, no strain will come on the valve-operating devices, and the internal parts may all be removed, together with tube E, by unscrewing` the cap D.

As respects the action ofthe collar J on the socket I and rod H, the said socket and rod may be considered merely one valve-rod.

IOO

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

l. The combination, in a lamp, of an oilreservoir, :i valve-rod, :t tube in which the upper end of said rod is received, the tube llaving a spherical head, sind a'hztnger having :t concave seat adapted to said heed, substantially as described.

2. The combination, in a lamp, of an oilreservoir, at rod working in the cap thereof and carrying zi valve that effects a closure of said cap, a, vertically-movable coll-fir, sind connections between the said collar and rod, substantially as described.

3. The combination, in a, lamp, of an oilreservoir, zt cap therefor, ai rod fitted in the cap for vertical movement and having,` it valve closing` said cap, a spring normally acting to hold Said valve to its seat, said spring being provided with a cap and a base having its upper end projecting in the reservoir, of a slotted tube secured in the cap and provided with a pin, arod provided with a, valve for closing the cap and with a valve on its lower end for closing the base, a cap secured to the rod and located in the saidtube and provided With a cross-bar Working in the slot of the tube, and a, collar on the tube and provided with recesses, substantially as herein shown and described.

OLIVER SWEENEY'. .Vitnesses:

J. L. MGAULIFFE, C. SEDGWIGK.

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