US1234382A - Lamp-lens-retaining ring. - Google Patents

Description

L. L. PFEIFER.

.LAMP LENS HETAINING RING. l APPLICATION FILED sEPT.21, isle.

g., A Patented July 24, 1917.

LEO L. PFEIFER, COLUMBUS, OHIO, TUBING COMPANY,

.ASSIGNOR TO THE JOHN W. BROWN MNUFAC'- OF COLUMBUS, OHIO, A CORPORATION OF OHIO.

LAMP-LENS-BETAINING RING. J

Lacasse..

Specification of Letters Patent.

Patented Jury ai, mit..

Application led September 27, 1916. v Serial No. 122,555.

To all 'whom z't may concern.' Be it known that I, LEO L. PFEIFER, a c1t1- v zenyof the United States, residing at Columbus, in the county of Franklin and State of Chio, have invented certain new and useful Improvements in Lamp-Lens-Retaining Rings, of which the following is a specilication.

This invention relates to lamp lens retaining rings of the type which are particularly adaptable for use in connection with automobile lamps.

ItI is my object to provide a structure wherein the cost of production as well as the cost of assembling of these retaining rings is considerably reduced over what is now in use. To this end, my invention may be defined as being a particularly novel type of lip structure so shaped and bent to form a retaining means for the lens itself. Also, this lip structure is so shaped that it may be cut from the sheet from which the ring itself is cut without wasting av great amount of the center cut out portlon.

The preferred embodiment of my invention is shown in the accompanying sheet of drawings, in which similar characters of reference designate corresponding parts, and in which:

Figure 1 is a rear side View of one of my improved type of retaining rings showing the lens 1n its position, and, Y

Fig. 2 is a transverse section of the structure shown in Fig. 1. l

In the present drawings, I have shown a retaining ring embodyingl my invention, which the entire ring structure is stamped from a piece of sheet metal. This retaining ring is designated generally bythe reference numeral l, having an upstanding edge 2 and a retaining edge portion 3. This retaining edge portion is rounded slightly as is shown and the original stamping of this portion of the ring is shown in dotted lines in Fig. 1. From Fig. 1, it will be noted that the center portion of the retaining -member has been cut out, but the cut edge is p rovided with a plurality of retalnmg lips shown at 5. These retammg hps are preferalolyy integrally joined at 6 with 'the yring member itself and are cut so that their longitudinal edges are approximately. parallel with the cut edge 4, although the edges 7 between the points 8 and 9 are free of connection with the ring body itself. By forming these lips in this manner, approximately the entire center of the metal from which the 'ring itself is stamped or cut, is saved to be used up in any manner which may be desirable, whereas if these lips were stamped out radially, a great portion of this center would be lost for subsequent use. After these lips have been thus formed, they that the portions 10 lie against the inside face of the retaining Aportion 3, while their ends are bent upwardly and provided with a hump shown at 1-1. These humps are formed to slightly overlie the glass lens 12, so that when it is' desired to place these lens in position, the resiliency of the metal lips 5 is relied upon to cause their slight yielding outwardly, but after the lens has been placed in position, the humps 11 come into operation to resiliently retain the same in such position.

From the foregoing description, taken in connection with the accompanying sheet of drawings, it will be apparent that I have provided a retaining ring structure which may be made at a minimum of cost. The lips 5 are so formed and stamped, that the center portion cut out from the sheet from which the retaining ring itself is formed, is not mutilated to such an extent that it is no good for further use. In addition, by integrally joining these lips 5 with the retaining ring, they may be bent and shaped to assume their proper form by means of die machinery and in this way, all manual operation of all soldered connections are dispensed with.

What I claim, is:

Yl. Means for supporting a lens for a lamp, comprising an annular ring and a plurality of lens holding Atongues integrally connected with the inner edge of said ring, said tongues extendin outwardly and carrying means to operative y hold the lens in position.

are bent back so l i 2. Means for supporting'a lens for alamp,

, comprising an annular ring, and a plurality of lens holding tongues integrally connected l with the inner edge of said ring, said tongues 5 extending outwardly and being formed with humps on their outer ends to operatively hold the lens in position.

A In testimon 'whereof my signature "in presence o two witnesses.

LEO L. PFEDEER.

Witnesses:

WALTER E. L. Boex, A. L. PHELPS.

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