US365539A - Gas-expander and shade-holder - Google Patents

Description

(No Model.) 2 Sheets--Sheet 1.

J. RIGBY.

GAS EXPANDEB. AND SHADE HOLDER.

Noi 365,539. Patented June28, 1887.

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' J. RIGB'Y.

GAS EXPANDED AND SHADE HOLDER.

No. 365,539. Patented June 28, 1887.

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and durable support for globes and shades shade. Fig. 7 is a side elevation, and Fig. 8

.and I do hereby declare the following to be a UNITED STATES PATENT OFFICE.

JAMES RIGBY, OF MINNEAPOLIS, MINNESOTA/ GAS-EXPANDER AND SHADE-HOLDER.

' SPECIFICATION forming'part of Letters Patent No. 365,539, dated June 28, 1887.

Application filed January 3, 1887.

To all whom it may concern 'Be it known that I, JAMES RIGBY, acitizen of the United States, residing at Minneapolis, in the county of Hennepin and State ofMinnesota, have invented certain new and useful Improvements in GasExpanders and Shade-Holders;

full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to certain new and useful improvements in gas-expanders and shadeholders; and it consists in a gas-pipe bent to form a circle or ring or series of rings above the gas-jet and form a support for globesand shades.

The object of my invention is to form a cheap above the fiame, and at the same time bend the gas-pipe, so it will receive the ascending heat thrown off from the burning jet below. lat; tain these objects by means of the peculiar construction and arrangement of the various parts of my device, which will be more fully pointed out and described in the specification and claims, reference being had to the drawings accompanying this application andforming part of the same, in which Figure l is a perspective view of the gaspipe and vertical View of shade and attachments. Fig. 2 is a perspective View of the bent gas-pipe. Fig. 31s a top plan view of pipe, showing circle-rest for globe. Fig. 4 is a vertical sectional view of shade-holder. Fig. 5 is a perspective view of shade-holder. Fig. 6 is a vertical and sectional view'of pipe and is a top sectional view, of same.

Similar letters refer to like parts through out the drawingsw I Referring to the drawings, A represents a gas-pipe, which is bent near its center to form a ring, 0, the outer end, 0, being curved outward and provided with a coupling-ring, a, by which it is joined t an inflow-pipe, (not shown,) through which gas is forced into pipe A. The opposite end of pipe A is curved in ward and outward, and'provided'witha reducing-section, a, and the ordinary gas-jet, a..

Serial No. 223,249. (No model.)

An annular ring, D, is formed of any suitable material, (preferably of metal,) with radial arms or lugs b, and the under halfof said ring D is left open, whereby it will slip over and rest on the top of the ring 0 of pipe'A, as shown in Fig. l.

The globe or shade E is formed of glass, porcelain, or other suitable material, with wide open-mouthed bell-shaped base, and

curved inward and outward to form a rounded shoulder at c, the purpose of this construction.

being to reflect the rays of light downward at .is shown supported by the inner flange, E,

directly upon the upper surface of the ring 0,

formed by bending pipe A. This construction dispenses with the annular ring D, cheapens the construction, forms a reliable support for the globe E, and concentrates rays of heat from the gas-jet upon the bent ring 0, thus heating the inflowing gas to a high degree, therebyincreasing the volume of light by means of the expansion of the gas. form the circle or ring 0 at right angles to its -length,and the j et-tube end also at right angles;

but the flame of the burner is designed to occupy a place nearly central beneath the ring 0.

Havingdeseribed myinvention, whatlclaim, and desire to secure by Letters Patent, is-

1. A gasexpander and shade-holder consisting of a tube composed of a vertical portion, a portion bent into circular form at right angles to the vertical portion, and a downwardly-extendingportion,in combination with a concaveannular plate fitting loosely around the top of said circular portion, and provided with horizontal projecting shade supports, substantially as shown and specified.

2. A gaseXpander and shade-holder consisting of a tube composed of a vertical portion, a portion bent into circular form at right angles to the vertical portion, the lower end of said vertical portion curved inward and upward and terminating in a gas-nipple in line with the center of said circle, and a down- The top or neck of shade E The pipe A is bent tov I wardly-extending portion, the lower end of the downwardlyextending port-ion curved outward and provided with a coupling-ring, in combination with an outwardly-flaring bellshaped reflector having a neck-flange projectinginward over the circular bent portion of said tube, substantially as shown and specified.

3. The Combination of a circular expander, a bel1-shaped reflector and concentrator having an inwardly-proiecting neck-flange, and a shade-suspending device consisting of an annular concave plate or ring having outwardly projecting horizontal supporting-arms formed to fit the under face of said reflector neckflange, substantially as shown and described. In testimony whereof I affix my signature in presence of two witnesses.

J AMES RIGBY.

\Vitnesses:

VERNON M. DORSEY, G. FRED. KELLER.

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