US13014A - Portfolio - Google Patents

Description

UNITED STATES PATENT OFFICE.

S. J. H. SMITH, OF BOSTON, MASSACHUSETTS.

PORTFOLIO.

Specification of Letters Patent No. 13,014, dated June 5. 1855.

To all whom t may concern Be it known that I, SAMUEL J. H. SMITH, of Boston, in the county of Suffolk and State of Massachusetts, have invented a new and useful Portfolio for Filing Letters or Sheets' of Various Kinds; and I do hereby declare that the same is fully described and represented in the following specification and the accompanying drawings, letters, figures, and references thereof.

Of the said drawings, Figure 1, is a side view of the said article. Fig. 2, is a transverse section of it. Fig. 3, is a longitudinal section of it, taken through its clamp bars and their spring bands.

In constructing my invention I employ two bars A, B, composed of wood or other proper material. They are to be laid parallel to one another' and united at or near each of their two adjacent ends by elastic band springs, c, o, which will permit these bars to be moved apart from one another and to return toward one another, when the separating force is withdrawn from them. To each of the bars is to be connected a sheet of pasteboard or cover C, which may be hinged to the bars. On the opposite sides of the bars there is to be applied or fixed to both bars an elastic or yielding back D, which should be made of a width as great as it may be desirable, for. the clamp bars to be separated without improperly straining their band springs.

In liling letters, or sheets of paper, in

such a portfolio, they are to be placed between the clamp bars when the latter are moved a sufficient distance apart to receive such sheets or letters, the retractive powers of the spring bands serving to maintain the sheets or papers in place, while the flexible back will be extended or undoubled in proportion as the mass of paper liled is increased, the back serving to protect the papers from being injured or forced from between the clamp bars.

The back should be made of either a flexible or elastic material.

I do not claim a bill or paper file co1nposed of two straight bars or plates and elastic bands uniting them together at their ends, when such bars or plates are so arranged that one may be parallel and above the other, but

Combining such with two covers, and a flexible elastic, or extension back so as to constitute the file portfolio for the retention and preservation of papers or letters, and protecting the map -or file of them on both sides, and t-he back of the same.

In testimony whereof I have hereunto set my signature this ninth day of April A. D. 1855.

SAMUEL J. I-I. SMITH Vitnesses CALEB EDDY, F. I). HALE, Jr.

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