US1259557A - Incandescent-mantle holder. - Google Patents

Description

1. I. ROBIN. INCANDESGENT MANTLE HOLDER.

APPLICATION FILED APR. I2. 19!]- 1,259,557. Patented Mar. 19, 1918.

JACOB I. ROBIN, OF NEW YORK, N. Y.

INCANDESCENT-MANTLE HOLDER.

Specification of Letters Patent.

Patented Mar. 1a, 1918.

Application filed April 12, 1917. Serial No. 161,428.

To all whom it may concern:

Be it known that I, JACOB I. ROBIN, a citizen of the United States, and a resident of the borough of Manhattan, in the city and State of New York, have invented certain new and useful Improvements in Ineandescent-lvlantle Holders, of which the following is a description in such full, clear, and exact terms as will enable any person skilled in the art to which it pertains to make and use the same.

My invention relates to those mantle holders which are adapted to be secured on or otherwise tightly fitted to the mouth piece of the Bunsen burner, and intended particularly for use in connection with inverted mantles.

The invention, however, is not necessarily so limited and resides primarily in the structure of the mantle carrying ring.

An important object of the invention is to secure a certain amount of auxiliary air at the mouth piece of the burner, that is to say, air in addition to that entrained at the Bunsen and that which is absorbed by the incandescent flame playing at the surface of the mantle.

The invention is useful in connection with mantles, particularly inverted mantles of various forms and especially inverted mantles of the rag or limp type which are usu ally constructed small with ceramic rings screwed on the burner mouth piece.

The invention involves other features of importance which will be fully set forth hereinafter and particularly pointed out in the claims.

Reference is had drawing in which Figure 1 is a side view of the mantle rmg showing the mouth piece and mantle in broken lines, and

Fig. 2 is a plan view of the same.

a is the mouth piece of the Bunsen burner which is threaded to receive the ceramic mantle holding ring Z1. This ring has lugs L to facilitate screwing and unscrewing it from the mouth piece and threads 6 to match the threads of the mouth piece.

0 indicates openings or notches formed in the inner periphery of the ring 6 which constitute air passages past the burner mouth piece a. (Z shows by broken lines the position of upper part of the inverted to the accompanying mantle seized around the ring Z1 with the usual asbestos cord or indeed fastened in any other desired fashion.

Now according to my invention and the conventional incandescent light practice a certain amount of air is entrained at the Bunsen to form the Bunsen mixture but it has been found in practice that an additional quantity of air is beneficial to or enhances the attainment of the object of making the mantle uniformly incandescent and thereby producing a perfect incandescent light. To provide this additional air I form the air ducts or notches c in the ring I) and the outgoing current of air from the mouth piece a forms a sort of injector action which draws in the atmospheric air and intensifies the flame in the manner implied. All of this is in addition to such atmospheric air as may be utilized at the surface of the mantle (Z by the breaking gases escaping from the mantle thereof.

The invention, it will be noted, relates especially and particularly to what are known as inverted mantles. These mantles constitute a certain group in the family of gas mantles and are usually made in a limp state rather than with the utilization of the well-known collodion process.

hat I claim is 1. An incandescent gas mantle ring carrying the mantle on its exterior circumference and having its interior circumference furnished with threads to screw on the Bunsen mouth piece, said interior ence having a notch or gap formed therein longitudinally of the mouth piece and breaking the threads on the interior circumference of the ring which notch or opening permits the passage of air between the mouth piece and ring to the interior of the mantle.

2. An incandescent rying the mantle on ence and furnished gas mantle ring carits exterior circumferwith threads on its inner circumference to screw on to the Bunsen mouth piece, said ring having a plurality of openings or notches on its inner circumference cutting the threads and furnishing passages for atmospheric air to pass the burner mouth piece to the interior of the mantle.

3. As an article of manufacture, an annular ceramic men her for carrying an incircumferoandescent gas mantle, said member being In testimony whereof I have hereunto formed at one end with laterally extending signed my name in the presence or" two Wit- Q1) lugs and on its inner circumferential surnesses.

face with a screw thread and a number of 5 notches or gaps extending the entireheight JACOB ROBIN of said member and serving as airducts Witnesses: When said member is screwed onto the 7 PATRICK A. BoLGER, mouth piece of a Bunsen burner. ISAAC B. OWENS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

. Washington, D. 0.

Images