Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS1447405 A
Publication typeGrant
Publication dateMar 6, 1923
Filing dateJul 26, 1922
Priority dateJul 26, 1922
Publication numberUS 1447405 A, US 1447405A, US-A-1447405, US1447405 A, US1447405A
InventorsEdmund R Barany
Original AssigneeFranco Electric Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Lens ring
US 1447405 A
Abstract  available in
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Mar. 6, 1923. 1,447,405 E. R. BARANY LENS RING Filed July 26, 1922 Patented Mar. I923.

memos UNI? ES FATENT QFFIQEO EDMUND R. BARANY, 0F BROOKLYN, NEW YORK, ASSIGNOR TO FRANCO ELECTRIC CORPORATION, A CORPORATION OF NEW YORK.

, LENS RING.

Application filed July 26,

To all whom it may concern:

Be it known that I, EDMUND R. BARANY, a citizen of the United States, and resident of the borough of Brooklyn, county of Kings, city and State of New York, have invented certain new and useful Improvements in Lens Rings, of which the following is a specification.

This invention relates to what are commonly known as lens rings employed in connection with flashlights as a means for Ohtaining the so-called lens in the position upon the flashlight head.

According to the present practice, lens rings are cast and are consequently not only heavy and cumbersome,but also expensive. The weight of such rings may be cut down materially by casting them thinner and con-- sequently their cost may be somewhat reduced. but they are. by so doing, rendered insuflicient in strength to meet the usual requirements in flashlights.

An important object of my invention is to provide a lens ring which is inexpensive to manufacture extremely light and sufli eiently strong to meet all necessary requirements.

Other objects and certain advantages of the invention will become apparent from the following description, taken in connction with the accompanying drawings, in which- Figure 1 is a plan view of a lens ring embodying my invention.

Figure 2 is a sectional view taken on line 22 of Figure 1.

In the drawings, wherein is shown what I at present consider the preferred form of my invention, the numeral 5 indicates an annular member which is formed with a depending flange 6. having screw-threads, rolled or otherwise provided therein, in order that the ring may be. attached to the usual form of screw-threaded flashlight head.

In coi'istructing the device embodying my suitable dies to produce an annular channel 8 and a head or ofl'set portion 9 intermediate the screw-threaded flange 6 and the lens retaining flange 7. The annular offset portion 9 may under certain conditions, ofler suflicient reinforcement to the ring to meet all ordinary requirements, but I have found that by distorting the offset'portion 9 so as to provide a plurality of spaced extensions 10, the ring is further reinforced and additional rigidity is afforded.

By additional reinforcing of the ring, as above mentioned, I am enabled to produce rings having diameters as greatas six inches or more, which are sufficiently strong to meet all requirements in a flashlight, even though the metal employed may be relatively thin. Incidentally, by distorting the offset portion 9 to provide extensions 10, I produce a poly sided article which is highly attractive in appearance and the faces 11 of which serve to preventthe flashlight; from beingeasily rolled when laid upon a flat surface, as, for example, a table, thus eliminating, to a great extent, the danger of having the flashlight accidentally or otherwise removed, permitting it to fall to the floor, which frequently results in the breaking of the lens or other elements embodied therein.

Having thus described my invention, claim:

A lens ring constructed from sheet metal and comprisingan annular screw-threaded body formed throughout its periphery with a reinforcing offset portion, said offset por tion being distorted to provide a plurality of extensions and terminating in an inwardly disposed lens retaining flange.

In testimony whereof, I have aflixed my signature to this specification.

ND It. BARANY.

Classifications
U.S. Classification362/208
International ClassificationF21V17/16, F21W101/10
Cooperative ClassificationF21L15/06, F21V17/16
European ClassificationF21V17/16, F21L15/06