US1016391A - Protector for incandescent mantles. - Google Patents

Description

M. BENDIX. PROTECTOR FOR INOANDESGENT MANTLES. APPLICATION FILED JAN. 11, 1910.

1,01 ,391; Patented Feb. 6, 1912.

COLUMBIA I'MNUGRAPH LO.,WASII|NGTON, u. c.

MAX BENDIX, OF COLOGNE, GERMANY.

PROTECTOR FOR INGANDESGENT MANTLES.

Specification of Letters Patent.

Patented Feb. 6, 1912.

Application filed January 11, 1910. Serial No. 537,527.

To all whom it may concern:

Be it known that I, MAX BnNDIx, a subject of the King of Prussia, residing at Cologne, in the Empire of Germany, have invented certain new and useful Improvements in Protectors for Incandescent Mantles, of which the following is a specification.

This invention relates to incandescent bodies or mantles for illuminating purposes, made. of the well known material hitherto used, and in particular, to mantles for this purpose which are secured to the wellknown supporting rings in any desired or suitable manner, such, for example, as by sewing. The incandescing mantles for this purpose, as hitherto made and prepared for packing, were subject to the disadvantage that they could not well be maintained in the desired shape during transportation. These mantles, as is known, are generally shipped-ready for use, except that they must first be burned off. For so shipping they are placed individually in small cardboard boxes from which they are removed when needed for use. Owing to the method of packing, usually adopted, the mantle occupies a flattened out or compressed position in the box, and when it is taken out for use it retains such shape and it is not possible-to restore it to its original shape by pulling out or stretching the same in view of the fragile nature of the material and for other reasons. Such a flattened mantle, as has been proved by experience, is not durable and, besides, it has a smaller illuminating power.

It is the object of the present invention to overcome these disadvantages arising from the packing, shipping and manipulae tion of the mantles as hitherto used, and with this object in view, the said invention consists in the features and combinations of parts now to be described and to be particularly pointed out in the claims.

In the accompanying drawing: Figure 1 represents a side elevation of a mantle-supporting ring with an old form of mantle indicated thereon in dotted lines; and Fig. 2 represents a mantle supporting ring provided with a protecting device under my invention.

In these drawings, 0 represents a mantlesupporting ring of the usual form, and in Fig. 1 I have indicated in dotted lines a mantle b secured to said supporting ring. This mantle, it will be noted, is flattened out,

said flattening out being due to the mode of packing hitherto employed. This flattened shape the mantle will retain for the reason that it is impossible to return it to its original and elongated form by pulling out or stretching. In order to obviate this difficulty I provide the usual incandescing mantle 6, before the same has been burned off, with a band-like device a which, as shown, is laid around the mantle b at the point where it is joined or connected to the ring 0, said band, as shown in Fig. 2, extending some distance below such point of connection. Said band-like device may consist of a band of paper or of rubber or of other suitable material, and when laid around the mantle, as stated, has its ends secured by causing them to overlap, as shown, the ends being secured by glue or by tying or by any other suitable auxiliary means. It is essential that the securing band fit tightly around the mantle without, however, injuring the same. This protecting band, as has been found, serves to keep the mantle in its desired shape during transportation when packed in the usual manner, and will effectively avoid the danger of its becoming crushed or flattened, as indicated in Fig. 1.

When it is desired to put the burner in place on the lamp and use it, the band-like device a is removed, said removal being effected before the mantle is placed on the burner. The mantle can then be burned oif and used for illumination in the ordinary way.

It will be seen from the above that an important feature of my invention lies in the fact that an unburned incandescent mantle or illuminating body is provided with a removable band of sheet material which is applied at the point where the mantle is connected to the supporting ring, and each of these features materially distinguishes this invention from the method hitherto employed of strengthening mantles after they have beenburned off by the application of a fixed and not removable layer of colloid or similar material.

l/Vhat I claim and desire to secure by Letters Patent is 1. A mantle supporting ring and mantle for incandescent lighting secured to said supporting ring, in combination with a re movable band of sheet material placed around the mantle at the portion in contact with the ring, said band extending beyond with the ring,

said band extending beyond the ring. the ring.

2. A mantle supporting ring and mantle for incandescent lighting secured to: said MAX BENDIX' 5 supporting ring, in combination with a re- In presence of movable fiat, stiffening band of paper placed v LoUIs VANDORY,

around the mantle at the portion in contact SAMUEL D. WARREN, J r.

Copies 01 this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. 0.

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