US2150916A

US2150916A - Reading glass

Info

Publication number: US2150916A
Application number: US180452A
Authority: US
Inventors: Emmett G Forgea
Original assignee: Individual
Current assignee: Individual
Priority date: 1937-12-17
Filing date: 1937-12-17
Publication date: 1939-03-21
Anticipated expiration: 1956-03-21

Description

March 21, 1939. E G, FORGEA 2,150,916

` READING 'GLASS Filed Deo. 17, 1937 HQL- /6 f5 Y wwf Patented Mar. 21, 1939 UNITED STATES PATENT OFFICE 2 Claims.

(Granted under the act of March 3, 1883, as amended April 30, 1928; 370 O. G. '757) This invention described. herein may be manufactured and used by or for the Government for governmental purposes, without the payment to me of any royalty thereon.

This invention relates to a reading glass, more particularly it is directed to avdevice of this character including magnifying means and having means for illuminating objects such as maps or the like to be magnified.

The principal object of the invention is to provide a relatively inexpensive and at the same time an eiiicient and convenient type of reading glass.

Other objects of the invention are to provide a reading glass having means to support the same at the proper distance from the magnified object, to properly light a portion of a map or other object to be magnified, to provide a lighting unit having a source of current supply from dry cells, to provide means for detachably connecting the lighting unit to the supporting means of the reading glass, and to provide means for permitting use of a plotting scale, rule or writing implement Within the device on the magnified and illuminated portion of the map or the like.

With the above and other objects and advantages in View the invention consists of certain features of construction and operation of parts which will hereinafter appear and in which- Fig. 1 is a top view of the invention;

- Fig. 2 is a vertical sectional View taken on the line 2-2 of Fig. 1, and

Fig. 3 is a side view thereof.

In the illustrated embodiment characterizing the invention, a body portion I is provided which may be made of tin or other suitable material having the property of diffusing light impinging thereon, or the interior of the body may be lined or coated with light diffusing material such as aluminum paint or the like. The body portion I is opened at its lower or bottom end 2 and closed on its upper end by a lens 3 mounted in a holder 4. Intermediate'the upper andv lower ends of the body portion at substantially the central portion thereof is a lateral opening 5 in which a bezel portion 6 of a flashlight 1 is adapted to project. The flashlight 1 is of a fiat substantially oblong shape having rounded ends 8. The bezel portion 6 is formed on one side of the flashlight at the center thereof and is adapted to surround a lens 9 which closes the outer end of a reflector I0, the inner end of the reflector IIJ being adapted to surround the base of an electric lamp II, which is energized by means of dry cells I2 and controlled by a switch button I3 in the conventional manner. The longer portion of the oblong shaped flashlight 1 is vertically mounted on theV body portion I and is detachably held to the body portion by means` of a U-shaped member I4, the free ends I5 of which are pivotally connected to opposite sides of the body portion by rivets I6 or the like. The outer portion I'I of the U-shaped member extends out from the body portion I a suflicient distance to pass over the upper end 8 of the flashlight and contact the outer side I8 thereof. The side of the body portion I containing the lateral opening 5 is shaped to present a flat surface I9 against which the inner flat side of the flashlight 1 may abut, the upper end of the flat surface I9 terminating in a curved surface 20 which conforms to a portion of the curvature of the upper rounded end 8 of the flashlight.

A substantially U-shaped re-entrant cut-out portion 2| is formed in the lower end of the body portion I at a right angle to the lateral opening 5 for a purpose which will hereinafter appear.

In using the device, the flashlight 'I is placed on the body portion I adjacent to the lateral opening 5 and the U-shaped member I4 is turned o-n its pivots I6 to engage the upper end of the flashlight. The open bottom 2 of the body portion I is then placed on a portion of a map or the like to be illuminated and magnified and the switch button I3 is manipulated by the hand to operate the lamp II through the dry cells I2. A plotting scale, rule or writing implement may then be inserted within the body portion I by means of the cut-out portion 2l provided therein and used on the magnified and illuminated portion of the map or other object.

Even though I have herein described the invention as a reading glass, it is nevertheless to be understood that it is not limited to a glass for reading printed matter only, but may be used as a magnifying glass for all purposes, such as reading printed matter, examining material of various sorts, used by surgeons and others to illuminate parts of a persons anatomy and the like.

It is obvious that various changes may be made in the form and construction of the device Without departing from the spirit and scope of the invention.

Having described my invention, what I claim as new and wish to secure by Letters Patent is:

1. A light conserving magnifier comprising a. casing having an internal light reflecting surface and a lateral opening, one end of said casing constituting a magnifying lens, the other end of said casing being open and having a peripheral edge lying in a plane, which peripheral edge is adapted to seat on a surface to be examined, means constituting a light source contiguous to said lateral opening, said light source adapted to project light rays through said opening ontoA the internal light reecting surface of said casing and another lateral opening in said casing constituting a Window through which an indica-tor may be inserted, said last mentioned lateral opening extending through said peripheral edge.

2. A light conserving magnier comprising a casing having an internal light reecting surface and a lateral opening, one end of said casing constituting a magnifying lens, the other end of said casing being open and having a peripheral edge lying in a plane, which peripheral edge is adapted to seat on a surface to be examined, a lamp housing abutting said casing and extending from said lateral opening, a lamp in said housing, said lamp adapted to project light rays through said opening onto the internal light reflecting surface of said casing, another lateral opening in said casing constituting a Window through which an indicator may be inserted and means pivotally connected to said casing and adapted to engage detachably said lamp housing for holding said housing against said casing.

EMMEI'I' G. FORGEA.