Device For The Housing And Storage Of Microfilm

Abstract

A device for retaining strips of microfilm and comprising a pair of sheets disposed in face-to-face relationship, the sheets being secured together at spaced fastening points whereby strips of microfilm can be inserted between the sheets and located at the fastening points.

Description

This invention relates to a device for the storage of strips of microfilm and has for its object to provide such a device in a simple and convenient form.

A device in accordance with the invention comprises a pair of sheets of material disposed in face-to-face relationship, the sheets being secured together at a plurality of spaced fastening points so as to permit insertion of strips of microfilm between the two sheets of material, each strip of microfilm being located between the sheets by the material extending between the sheets of material at the fastening points.

In the accompanying drawing:

FIG. 1 is a plan view of one example of a device in accordance with the invention,

FIG. 2 is a side view of the device of FIG. 1.

Referring to the drawings there is provided a pair of sheets of material 10, 11 which are positioned in face-to-face relationship. The sheet 11 has a larger dimension in one direction to define an overhanging edge portion 12. Moreover, the sheets are secured relative to each other at a plurality of spaced fastening points 13. The fastening points 13 occur along the four edges of the sheet 10 and also in rows between the edges of the sheet but parallel to the edges of the sheet. In this manner strips 14 of microfilm can be inserted between the sheets 10 and 11 intermediate the rows of fastening points. As is illustrated, the strips of microfilm can be inserted so that they lie along axes at right angles to each other although it will be understood that when inserting the strips 14 they will be disposed generally in the same direction. Moreover, the fastening points act to locate the strips relative to each other and to the sheets 10 and 11.

The overhanging edge portion 12 of the sheet 11 is provided to enable the device to be secured to a mounting such for instance as a document file. The method of fixing may be by staples or the like. Alternatively and as illustrated, the edge portion 12 may be provided with an adhesive coating 15 to enable it to be stuck to the mounting.

If desired and when the sheet 11 is formed from flexible material, the overhanging edge portion 12 may be extended as at 12a so that it can be folded over the sheet 10 to form the equivalent of a file.

The sheets 10 and 11 are formed from a transparent synthetic resin material and may be either flexible or rigid depending upon the application. The thickness of the two sheets can be equal and again depends upon the application. The fastening points 13 may be constituted by spot welding the two sheets at the respective points alternatively the two sheets can be secured together by adhesive at these points. In the drawing the two sheets 10 and 11 are shown as being in parallel relationship but in practice the sheets will be in contact with each other at the fastening points whichever method of securing the sheets together is employed.

Claims

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

1. A device for storing strips of microfilm and comprising a pair of sheets of material disposed in face-to-face relationship, the sheets being secured together at a plurality of spaced fastening points disposed at regularly spaced intervals over the area of the sheets of material, said points being spaced from each other in the longitudinal and vertical directions thereby to permit insertion of strips of microfilm between the two sheets of material in directions substantially at right angles, each strip of microfilm being located between the sheets by the material extending between the sheets of material at the fastening points.

2. The device according to claim 1 in which one of the sheets has a larger dimension in one direction so as to define an overhanging edge portion.

3. The device according to claim 2 in which said edge portion is provided with an adhesive coating whereby the device can be secured to a backing.

4. The device according to claim 2 in which said edge portion is of a sufficient length to enable it to be folded over the other sheet to define a file.

5. The device according to claim 2 in which the fastening points occur along the edges of the sheets and between the edges of the sheets in rows extending parallel to the edges of the sheets.

6. The device according to claim 2 in which the sheets are formed from transparent synthetic resin material and are welded together at said fastening points.