US552327A - William a - Google Patents

Description

(No Model.)

W..A. PENFIBLD. LAMP BURNER.

Patented Dec. 31, 1895.

W 11 3 I 1 I .uppcr and lower edges thereof.

UNiTED STATES PATENT OFFICE.

IVILLIAM A. PENFIELD, OF MERIDEN, CONNECTICUT, ASSIGNOR TO THE BRADLEY & HUBBARD MFG. 00., OF SAME PLACE.

LAM P-BURN ER.

SPECIFICATION forming part of Letters Patent No. 552,327, dated December 31, 1895.

Application filed February 4, 1895. Serial No. 537,208. (No model.)

To a whom it may concern.-

Be it known that I, WILLIAM A. PENFIELD, of Meriden, in the county of New Haven and State of Connecticut, have invented a new Improvement in Lamp -Burners; and I do hereby declare the following, when taken in connectionwith the accompanying drawings locking it in its elevated position by the supporting-pin; Fig. 3, a similar but less comprehensive view showing the gallery in its elevated and locked position; Fig. 4, a detached view, in side elevation, of the bearing-ring; Fig. 5, a detached broken view showing the upper end of the outer wick-tube; Fig. 6, a detached plan view of the bearingring in the size employed for the burners of Mammoth lamps. I

My invention relates to an improvement in that class of Argand or central-draft lampburners in which the burner-gallery is adapted to be raised for applying a lighted taper to the .wick without removing the chimney, and to be locked in its elevated position, the object being to produce at a low cost of manufacture a simple, durable, and convenientlyoperated burner of the type described.

with these ends in view my invention consists in a lamp-burner having certain details of construction and combinations of parts, as will be hereinafter described, and pointed out in the claims.

In carrying out my invention I form an integral vertical outwardly-projecting hollow rib or flute A in the bearing-rin g B, which isa trifle larger in internal diameter than the external diameter of the outer wick-tube C,upon which it slides up and down and rotates, the said hollow rib or flute extending throughout thewidth of the ring B and intersecting the The said bearing-ring B is connected with supportingarms I), forming continuations of the spring chimney-holding fingers D of the vertically movable and rotatable burner gallery E, which, in its depressed position, rests upon the upper edge of the burner-body F, the lower edge of which is bent inward and rigidly secured to the lower end of the outer wick-tube C. I do not limit myself, however, to any particular construction of the gallery, burner-body or outer wick-tube, or to any particular means of connecting the bearingringB with the gallery. Of course the supporting-arms D may be varied in form, and, if desired, may be made independent of the chimney-holding fingers D. The bearingring B, it will be understood, supports and steadies the gallery as it is moved up and down. WVhen the gallery is in its elevated position, as shown in Fig. 2, it is apparent that a lighted taper may be inserted between its lower edge and the upper edge of the burner-body for lighting the wick. For supporting the gallery in its elevated position I form a short locating-notch a in the lower edge of the ring B in such a position that the inner end of the notch, which is arranged horizontally, intersects the lower end of the hollow outwardly projecting rib A. This notch receives a supporting-pin or projection 0, located in the outer wick-tube C at such a distance below the upper end thereof that when the ring is raised on the tube to the height required for the convenient application under the gallery of a lighted taper to the wick the said pin will be in line with the inner end of the notch a, the said end intersecting, as before described, the extreme lower end of the hollow rib A. If now the gallery and its bearing-rin g are slightly rotated from right to left, the pin 0 will emerge from the lower end of the rib into the notch, the upper wall of which will engage with the pin, as shown in Fig. 3, in such a manner that the pin will then support the gallery in its elevated position. Then to restore the gallery to its normal position it is rotated for a distance represented by the length of the notch from left to right, whereby the pin will be brought into line with the lower end of the hollow rib or flute, which will clear the pin and permit the gallery to descend to its normal position, in which it is supported by the upper edge of the burner-body F. As herein shown, the outer wick-tube O is provided with two additional pins 0 and c located below the pin 0 and in line therewith and coacting with the flute or rib to prevent the gallery from being rotated in its depressed position when the upper edge of the bearing-ring lies below the pin 0, which does not, therefore, assist in restraining the rotat-ion of the gallery. If desired, the bearingring might be made broad enough so that in the depressed position of the gallery the pin a would be available for holding it against rotation; but the use of the pins 0 0 answers the same purpose and is cheaper. If desired, the pins 0 and 0 might be replaced by a rib applied to or struck out from the tube 0. If desired, also, the pin 0 might be replaced by a projection struck out from the tube 0.

For preventing the gallery from being lifted too high and accidentally removed from the outer wick-tube, which might involve the dropping of the lamp in case the same was carelessly lifted by grasping the gallery portion of the burner, I form a short locatingnotch a in the upper edge of the ring B on the opposite side of the hollow rib or flute A from the notch a aforesaid, the inner edge of the notch a. intersecting the extreme upper end of the said rib or flute in the same manner that the inner edge of the notch a intersects the flute. This notch a coacts with a stop-pin 0 mounted in the outer wick-tube at a point above the supporting-pin c and laterally separated therefrom by a distance corresponding to the distance through which the gallery may be rotated. In the normal adjustment of the burner-that is to say, when the gallery is in its depressed position-the stop-pin c is in line with the lower edge or wall of the notch a, while at the same time the supporting-pin c and also the pins 0 and c are located in line with the hollow rib or flute A. The stop-pin c and the pins 0 and 0 will not now interfere with the lifting of the gallery; but when the gallery has reached a predetermined elevation the stop-pin 0 will be engaged with the lower edge of the notch a, as shown in Fig. 2, and the gallery firmly held, so that it can neither be lifted higher nor removed from the lamp without rotating it. If it is desired to lock the gallery in this position, it is rotated from left to right, whereby the stop-pin c is caused to enter the upper end of the rib A, and the supporting-pin 0 brought into line with the upper wall of the notch a, as shown in Fig. In

this position of the gallery it is supported against depression by its weight and the weight of the chimney; but if it is lifted it will be removed from the outer wick-tube, in asmuch as the stop-pin c is nowin line with the hollow rib A. But perhaps the most important function of the stop-pin is to check the lifting of the gallery and bearing-ring in the position for their rotation to lock them in their elevated position, for the use of the stoppin relieves the operator of gaging the lifting of the gallery or burner preparatory to looking it in its elevated position, and makes the operation of the burner very convenient.

I have described the bearing-ring as being provided with only one set flute or rib, and the outer wick-tube as being provided with only one set of pins; but by preference I employ two corresponding ribs and sets of pins. As shown in Fig. 6 the ring is provided with two ribs, which are located opposite each other.

I would haveit. understood that I do not limit myself to the exact construction shown and described, but hold myself at liberty to make such changes and alterations as fairly fall within the spirit and scope of my invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is'- 1. In a central-draft lamp-burner, the combination with the gallery, outer wick-tube and burner-body thereof, of a bearings-ing connected with and depending from the gallery, and adapted to ride'up and down and be rotated upon the outer wick-tube, and constructed with an integral outwardly projecting hollow rib or flute intersecting its upper and lower edges, and with a short locating notch. formed in and parallel with the lower or go of the ring and at its inner edge intersecting the lower end of the rib or flute; and an outward projection located in the tube and eoacting with. the said notch. and rib or flute, substantially as described.

2. In a central-draft lamp-burner of the Argan'd type, the combination with the gallery, outer wick-tube and burner thereof, of a bearing-ring depending from and connected with the gallery, and adapted to ride up and down and be rotated upon the outer wicktube, and constructed with a vertically arranged, integral, hollow rib or flute intersecting its upper and lower edges, and further constructed with two short locating notches located in and parallel with its upper and lower edges, on opposite sides of the rib or flute respectively and at their inner ends intersecting the same; a supporting projection located in the outer wick-tube and co-operating with the lower notch, and a stop projection also located in the outer wick-tube but in a different vertical plane from the said supporting projection and co-operating with the upper notch, substantially as described.

3. In a central-draft lamp-burner, the combination with the gallery, outer wick-tube and burner-body, of a bearing-ring depending from the gallery and adapted to ride up and down and be rotated upon the outer wicktube, and constructed with a vertically arranged integral, hollow rib or flute intersecting its upper and lower edges, and with a short locating notch formed in and parallel with its lower edge and intersecting at its inner end the lower end of the rib or flute; and two or more stop projections located in the same Vertical line 011 the outer wick-tube the upper stop projection coacting with the said rib and notch and the lower stop projection 01' projections coaeting with the rib, substantially as described.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

WILLIAM A. PENFIELD.

Witnesses:

(J. D. NEWBURY, ,W. R. Boo'rH;

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