US2403747A - Microfilm reader - Google Patents

Description

July 9, 1946. w. F. OGORMAN MICROFILM READER Filed April 22, l944 \NVENTO'R M/IZZ/hM 50 605mm 2 ATTORNEY Patented July 9, 1.946 7 2,403,147 MICBOFILM READER William F. OGorman,

of one-half to Daniel New York, N. Y., assignor N. Garrett, Middletown,

A Application mm, 1944,Serial'No. 32.285

3 Claims.

This invention relates to an improved microfilm reader and its object is to provide a simple, inexpensive device for this purpose. Another object is to make the device foldable so that when not in use it occupies but little space. A still further objectis to.v reduce theweight of the device to aminimum,

These and other objects will appear in the following specification in which I will describe the invention, the novel features of which will be.

set forth in claims.

' Referring to the drawing:

nected and the space between them is sufficient to permit the film 23 to pass between them and,

between the fold line A and the staple at .d', which form the slot-22. i

The flaps D, D and the panel E are raised to positions at right angles to the panel B and the fiaDS F, F foldedagai st the flaps- D, D. The

lens 26 is attachedto the panel .G which is now folded back onto the upper edges of the flaps D, D to form the top 25 of the chamber and its flapsH, H are folded against the flapsF, F.

Fig. 1 is a side elevationof a device of pre ferred form which is made according to and em-'] bodies my invention. i n

Fig. 2 is a front elevation of the device shown in Fig. l.

Fig. 3 is a plan view of a blank of thick paper or thin card-board cut into a form and scored with fold lines so that it may be folded into the structure illustrated in Figs. 1 and 2.

Referring first to Figs. 1 and 2, the device illustrated therein comprises a pedestal ||l having a base an oblique reflector |2 in the form of a white or light colored fiat surface at the upper part of which are side shields l3. The inner surfaces of these shields are white or other light reflecting color.

Above the pedestal is a substantially cubical closed chamber 20. The base 2| of this chamber fits over the side shields and extends from the upper edge of the reflector to the outer ends of the side shields. It is provided with a slot 22 through which a film to be examined may be passed. A rectangular window 24 is formed in the base 2|. In the top 25 of the chamber is a magnifying lens 26 in axial linement with the center of the window. The sides 21 of the chamber exclude light from it, except what comes through the film 23 and hold the lens at theproper focal distance from the film. The chamber 20 preferably is tilted out of parallelism with the base of the pedestal for the convenience of the operator.

.The blank shown in Fig. 3 is subdivided by fold lines intopanels from which flats extend, those on one side being like those on the other side. The blank is first folded on the line A to superimpose the panel B on the panel C and these panels are fastened together by a staple positioned at X. Windows b and c are cut through the panels B and C and these register with each other. Th panels B and C form the base 2| of the chamber 20 shown in Figs. land 2. The lateral edges of panels B and C are not con- Holes d, ,f and it will then register and a metallic fastener is put through them. Similar registering holes are provided in the flaps at the opposite sidesof the panels B, E and G and they are fastened together in like manner. The chamber Zilis completed by folding panel I downwardly and tucking its flaps J, J between the flaps D, D and H, H. Thus the sides 21 of chamber 20 are formed by the panels E and I and the side flaps D, F, H and J. I

To form the pedestal ID, the flaps K, K are folded down to a position at right angles to the panel C. At least that portion of theinner surface of flaps K, K to the left of the diagonal lines in Fig. 3 is white or light colored. These flaps K, K form the side shields l3. The under side of panel L is also white or light colored. Its flaps M, M are folded upwardly and swung in between the side flaps K, K, The side flaps N, N of panel 0 are bent upwardly and over the flaps M, M. This forms the base ll of the device. When the holes k, m and n are in alinement they are held together by a metal fastener passed through them and the flaps on the other side similarly interconnected. The length of the panels LG and E is the same as that of each of the panels L and O to enable the blank to be folded fiat into a compact space.

' Whil not limited to any specific size, this device made for examining standard 35 mm. films weighs with a container only 1 /2 ounces and when folded flat comprises a space of but 1/2n 3/ H 51/8n Various modifications in construction, mode of operation, method and use of an invention may and dooccur to others, especially after benefitting from knowledge of such a disclosure as that herein presented of the principles involved, but the invention itself is not confined to the present showing.

I claim:

1. A folding microfilm reader constructed of stiff sheet material cut into a blank having a series of interconnected panels and side flaps and said edge exceeding the width of the film, said adjacent panels being provided with registering framed openings and a magnifying lens in the panel which forms the top of the chamber.

2. A folding microfilm reader constructed of stiff sheet material cut into a blank having a series of interconnected panels and 'side flaps and scored with fold lines, said blank being bent at the fold lines to form a pedestal having an inclined member and side shields, the surfaces of the blank which form the upper surface of the inclined member-and the inner surfaces of the side shields being of a light reflecting color, and to form a chamber the base of which is made of two adjacent panels of the blank folded upon each other to form an edge of a slot for receiving a film and fastened together at a distance from said edge exceeding the width of the film, said adjacent panels being provided with registering framed openings, a magnifying lens in the panel which forms the top of the chamber, and sides for-med of other portions of the blank arranged to space the top of the chamber from the base a distance equal to the focal length of the'lens.

3. A folding microfilm reader constructed of stiff sheet material cut into a blank having a series of interconnected panelsan'd side flaps and scored with'fold lines, said blank being bent at the fold lines to form a pedestal having an inclined member and side shields, the surfaces of the blank which form the upper surface of the inclined member and the inner surfaces of the side shields being of a light reflecting color and to form a chamber the base of which is made of two adjacent panels of the blank folded upon each other to form an edge of a slot for receiving a film and fastened together at a distance from said edge exceeding the width of the film, said adjacent panels being provided with registering framed openings, a magnifying lens-in the panel which forms'the top of the chamber, and sides formed of other portions of the blank arranged to space the top of the chamber from the base a distance equal to the front length of the lens, the length of the panel forming the top of the panel and the two adjacent panels being equal to that of the panels which form the inclined member and the base of the pedestal.

WILLIAM F. OGORMAN.

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