US771387A - Regenerative gas-lamp. - Google Patents

Description

UNITED STATES Patented October 4, 1904.

I.PATENT OFFICE.

WILLIAM STANLEY MCLEVVEE, OF YARDLEY, PENNSYLVANIA, ASSIGNOR TO THE TRENTON CONSTRUCTION COMPANY, A CORPORATION OF NEW JERSEY.

REGENEFIATIVE GAS-LAMP.

SPECIFICATION forming" part of Letters Patent No. 771,387', dated October 4, 1904.

Application iiled `ctober 3l, 1903. Serial No. 179,327. (No model.)

To all whom, it mmf "oncrn:

Be it known that I, WILLIAM STANLEY Mo- LuwEE, a citizen of the United States, residing at Yardley, in the county of Bucks and State of Pennsylvania, have invented certain new and useful Improvements in Regenerative Gras-Lamps, of which the following is a' specification.

My invention relates to improvements in regenerative gas-lamps in Vwhich the gas is preheated by the hot products of combustion escaping from the flame and coming in contact with the preheating-chamber, through which the gas passes before it reaches the burner or burners. Y

The object of my invention is to construct a lamp in which the gas after it has been heated will be allowed to expand, so as to reduce the quantity of gas consumption and produce a light of better quality and brilliance than has heretofore been produced.

A further object of my invention is to provide a means of collecting and carrying the hot air from the upper portion of the lamp down to the lower portion, so that the hot air may be mixed with the gas after the gas has expanded and before it reaches the burner or burners.

A still further object of my invention is to construct a valve by which the'supply of gas may be admitted lto one, two, or more of the burners desired.

In the drawings, Figure 1 represents a vertical sectional view of a lamp, illustrating my invention. Fig. 2 represents a vertical sectional view of a lamp, illustrating additional features of my invention. Fig. 3 is an inverted sectional view as on line 3 3, Fig. 1. Figs. l, 5, and 6 are views similar to Fig. 3, showing the parts in different positions; and Fig. 7 is an inverted sectional view as on line 7 7. Fig. 1. v

Referring to Figs. 1 and 2, A represents the supply-pipe, having a portion A', which is connected with the source of supply. Between the portions A and A of the supplypipe is interposed the preheating-chamber B. At the lower end of the supply-pipe A is an expansion-chamberC, in which the superheated gas is allowed to expand before it passes to the burnersD, consisting of incandescent mantles. Tubes Z connect each burner with the expansion chamber C. The said tubes CZ are provided with openings cl, through which the air is drawn into the tubes by the suction caused by the gas passing up through the tubes. A valve E is provided to control the supply of gas to the burners, which in this instance are three in number; but any desired number may be used. The valve E, as shown. in Figs. 3, 4, 5, and 6, is provided with arms e, c', and e2, which bind against lthe interior upper surface c of the expansion-chamber C. The armsV when in the position shown in Fig. 3 cover all the tubes (l, which connect with the expansion-chamber C. To admit the gas to one burner, the valve is turned in the direction of the arrow toY the position shown in Fig. 4, where one of the tubes d is open for the admission of gas. As the arm e' is wider than the arm e and the arm e2 is wider than the arm e', the remaining tubes l will still be closed. When the valve is turned to the position shown in Fig. 5, two of the tubes (l are open, and when the valve is turned to the position shown in Fig. 6 all the tubes are open. The arms of the valve are carried by a central hub E', which fits over the end of the supplypipe A. The gas from the supply-pipe A passes through the openings E2 in the hub E to' the expansion-chamber. A stem E3 is connected to the valve E` and a handle E4 upon the stem E3 is providedrto operate the valve. E5 is a pointer secured to the stem E3 and registers with marks or indicationsupon the under side of the expansion-chamber to show the position of the valve.

In Fig. 1, F represents the globe, and G represents the casing which surrounds the supply-pipe A and the preheating-chamber B. Said casing is arranged to direct the hot air from the burners around the supply-pipe u and the preheating-chamber to heat the gas before it reaches the expansion-chamber C. .After the gas has been expanded and leaves the expansion-chamber C it is mixed with the air from the lower part of the globe F, which is admitted through the openings d in the

Images