US2313356A

US2313356A - Flashlight attachment

Info

Publication number: US2313356A
Application number: US423775A
Authority: US
Inventors: Fred M New
Original assignee: Individual
Current assignee: Individual
Priority date: 1941-12-20
Filing date: 1941-12-20
Publication date: 1943-03-09
Anticipated expiration: 1960-03-09

Description

March 9, 1943. F. M. NEW 2,313,356

FLASHLIGHT ATTACHMENT Filed Dec. 20, 1941 5 INVENTOR F250 M A/[W Patented Mar. 9, 1943 UNITED STATES PATENT OFFICE 2,313,356 FLASHLIGHT ATTACHMENT Fred M. New, New York, N. Y.

Application December 20, .1941, Serial No. 423,775

2 Claims. (Cl. 240-45) This invention relates to attachments, particularly adapted for flashlights and other lamps having a light projecting end.

It is an object of the present invention to pro vide an attachment for use in connection with flashlights or other types of lamps for the purpose of dimming or filtering the light rays emitted from the light source.

'It is another object of the present invention to provide a device of the above nature which can be easily used and operated, particularly in darkened areas and during black-outs.

Still another object. of the present invention resides in the provision of means for selectively dimming and shielding the light emitted from a flashlight or a similar light source.

Yet another object of the present invention is to provide means for dimming the light of flashlights and the like, which means can be readily adapted to a great variety of sizes of flashlights and the like.

Still a further object of the present invention is to provide a flashlight attachment which is especially intended to be used in connection with civilian defense and military purposes and which may be accommodated on the head part of the conventional flashlights, and which is simple and inexpensive in construction and very efficient in operation.

Still another object of the present invention is to provide means for regulating dimness of light according to circumstances and conditions, particularly prevailing during black-outs.

These and other objects-and advantages of the invention will appear from the following disclosure thereof together with the attached drawing which illustrates certain forms of embodiments thereof. These forms are shown for the purpose of illustrating the invention since the same has been found in practice to give satisfactory and reliable results, although it is to be understood that the various instrumentalities of which the invention consists can be variously arranged andorganized and that the invention is not limited to the precise arrangement and oranization of the instrumentalities as herein shown and described.

In the drawing:

Fig. 1 is an end view, partly broken, of a flashlight attachment made in accordance with the invention.

Fig. 2 is a fragmentary side view thereof, partly broken. v

Fig. 3 is an end view, similar to that shown in Fig. 1 of a modified form of attachment.

'Fig. 4 is a fragmentary side view thereof, partly broken.

Fig. 5 is a broken side view, partly in section of a further modified form made in accordance, with the invention.

Fig. 6 is a broken front view thereo lights of various sizes.

flrmly hold the attachment in place, and in the Fig. '7 is a sectional view of still another modiflcation.

Referring to the drawing in greater detail, Figs.

.1 and 2 illustrate a preferred form of shield or light-dimming attachment for application as to a flashlight Ill, said flashlight, in the usual man-.

such size and shape as to be easily slipped over the end of any lamps, such as headlights, flash- Means are provided to present instance, said means is shown as comprising an elastic puckering band l3 encasedin a fold l4 of one end of the hood. Attachment I2 is designed to support a lens i5, said lens being thus held in superimposed relation over the lens ll of the flashlight ill. The lens i5 is preferably colored whereby it is made translucent so as to intercept the greater portion of the light from the flashlight, as can be well understood. The color at presentpreferred is blue. The lens I5 is preferably mounted in a ring'or frame i6, said frame being securely held to the attachment l 2 as by a locking ring [1. It is obvious from this structure that the bright light of the flashlight H1 is intercepted by the dimming shield or lens l5 to .dim said light whereby effective use of the device may be made in darkened areas, but rendered practically invisible at some distance.

As shown in Figs. 3 and 4, the device may be modified. In this form, the attachment l2 has afiixed to it a frame i8 in which is disposed a lens comprising a clear transparent portion l9 and a colored light-dimming or filter portion 20. The frame I 8 may be provided with a flange-like portion 2| upon which is mounted a rotatable ring 22 in which is supported a second lens comprising a transparent portion 23 and a translucent light-dimming portion 24. It is evident that the ring 22, mounted in the manner described, is capable of being rotated with respect to the frame l8 to bring either the

translucent portions

20 and 24 in registry or to align the respective transparent and

translucent portions

23, 20 and I9, 24 of the device. Thus, as illustrated in Fig.

4, the light emanating from a light source (not shown) of flashlight I0 is intercepted by the translucent portions 2|] and 24 to dim said light. Upon rotation of the ring 22, the second described lens 23-24 will be arranged to permit approximately half of the light of the flashlight to pass through the clear transparent portions l 9 and 23 of the respective lenses.

In the embodiment of the invention shown in Figs. 5 and 6, the lens 25 of the flashlight is positioned at the light projecting end and in this instance preferably to face laterally with respect to the body I 0a of said flashlight. A light-dimlating button 29 fixed to a holder of the filter 26.

It is evident that by means of the button 29 the filter 26 may be raised and lowered into and out of superimposed position with respect to the lens 25 and light source 25a.

In addition to the foregoing, the flashlight as shown in Figs. 5 and 6, may incorporate a hood or shield means such as shown at 30, said hood being arranged for pivotal engagement as at axis 3| on a support (not shown) which is attached to the body a whereby the shield means may be positioned to permit uninterrupted passage of the light as emanating from light source a through the lens 25 or through both the lens and the filter 26, as conditions require; or said hood or shield may be positioned in front of said light projecting end as shown in the dot-dash lines ,of Fig. 5 to control said light and to direct the same downwardly, as shown by the ray lines in the drawing. The flashlight thus equipped may be effectively employed for reading maps or making notes in darkened areas by merely setting the same upon its base 32 and utilizing the light which is directed downwardly to the support (not shown) upon which the fiashlight is set. It is obvious that this light is rendered substantially invisible, particularly as viewed from above. It will be noted that the movable filter 26 may be employed as a dimmer to regulate the amount of light without necessitating use of the hood 3!] and that the movable hood 30 may be used for directing or controlling the light from the light projecting flashlight end without use of the filter 26. It may be, however, easily realized that hood and sliding filter structure may be operatively connected in such a manner as to cause movement of both said hood and filter in dependency and/ or relatively to each other.

Another form of the invention is shown in Fig. 7 wherein an attachment l2b is mounted upon a flashlight Iflb similarly as described with respect to Figs. 14, and said attachment supports, as by means of suitable rings and frames, a lens having a transparent portion 33 and a translucent portion 34 such as hereinbefore described. The mentioned frames and rings may also serve to support a translucent semi-circular lens 35, said lens being carried in such a manner as to be readily rotatable within the frame 36 which carries the first-mentioned lens. Means are provided for rotating the semi-circular lens whereby it may be positioned either in front of the clear lens portion 33 or, as shown, in front of the translucent portion 34. Such means preferably comprises a combined handle and opaque shield 31 pivotally connected with the lens 35 or to the frame in which it is mounted. The handle may be employed as an opaque shield for the clear lens 33 as shown in full lines, or may be swung upwardly as shown in the dot-dash lines to permit light to pass unobstructedly through said clear portion and to serve as a handle whereby the lens 35 may be rotated It is to be noted that the term lens hereinabove referred to and used particularly in connection with means for dimming the light is not necessarily to be construed according to its proper technical meaning. The lens may assume any shape and cross section to suit the purpose hereinabove disclosed and may. have plane and/or curved surfaces.

The lens as herein referred to may be made of any suitable material'such as Celluloid, acetate, synthetic compositions of any known type, glass, and other relatively rigid substances or flexible materials, such as silk, fabrics, and the like.

The translucent portion of the lens may be prepared in any conventional manner; it can be frosted, painted, covered with a layer, or manufactured in any other manner suitable for the purpose intended.

While there has been shown and described and pointed out the fundamental novel features of the invention as applied to the above embodiments, it will be understood that various admissions and substitutions and changes in the form and details of the means illustrated and its operation may be made by'those skilled in the art without departing from the spirit of the invention.

Having thus described the invention what is claimed as new and desired to be secured by Letters Patent, is:

1. An attachment for the light projecting end of a lamp housing containing a light source comprising shield means disposed to swing about an axis transverse to said housing for positioning the shield means either in front of said light projecting end or .of any portion thereof, filter means adjacent said shield means, and means for moving said filter means toward and away from said light projecting end of said lamp housing to cover any desired portion of said light projecting end, said shield means and said filter means being supported and arranged in relation to each other and to the light projecting end of the lamp housing, so that the filter means may cover any desired portion of the light projecting end and the shield means may cover said light projecting end with the filter means in any adjusted position in front of the light projecting end or entirely away from it.

2. An attachment for the light projecting end of a lamp housin containing a light source comprising shield means disposed to swing about an axis transverse to said housing for positioning said shield means either in front of said light projecting end or of any portion thereof, filter means adjacent, said shield means, and means for reciprocably moving said filter means at said light projecting end and parallel to the axis of movement of said shield means, said shield means and said filter means being supported and arranged in relation to each other and to the light projecting end of the lamp housing, so that the light emitted from the light projecting end may be controlled by said shield means and the amount of light may be regulated by said filter means upon adjusted position of said filter means and said shield means relatively to said light projecting end;

FRED M. NEW.