US928614A - Folding writing-desk. - Google Patents

Description

C. MOHR.

FOLDING WRITING DESK. APPLIOATION FILED JUNE a, 1908.

928,614. i Patented July 20,1909.

wv'inEss es: jfi Efl far 1 CHRISTIAN MOHR, OF UETERSEN, GERMANY.

FOLDING WRITING-DESK.

Specification of Letters Patent.

Application filed June 3, 1908.

Patented July 20, 1909.

Serial No. 436,497.

To all whom it may concern:

Be it known that I, CHRISTIAN Morin, instructor, a subject of the King of Prussia and German Emperor, residing at Uetersen, in the Province of Schleswig-Holstein, in the Kingdom of Prussia and German Empire, have invented certain new and useful improvements in Folding Writing-Desks, of which the following is a specification.

The present invention refers to a folding w 'iting desk which consists of three boards and which can be placed in such a manner that not only an inclined surface is produced but also an inclined back is provided at the top end of this inclined surface, against which back books, patterns or the like may be placed. The single boards of the desk can be folded entirely together,

when the desk is not in use, so that the whole apparatus is only as thic as the three boards together and requires very little space and can be put away in any corner.

In the accompanying drawing the new folding writing desk is illustrated, Figure 1 showing the three boards folded together, Fig. 2 the three boards opened ready for use, Fig. 3 the plate hinge required for securing the supporting board.

To a board a suitably made of several thin boards glued together is attached by means of hinges (Z a board I) of about half the size of board a, so that this board projects with its front edge somewhat beyondv board a. For this purpose board a is beveled at its upper edge and this bevel determines the incline of board 6, as this board will rest with its projecting edge against the said bevel. In this position, Fig. 2, the lower edge of board I) must be equal with the under surface of board a. ()n the under side of heard u secured by means of hinges e a supporting board 0. For increasing the supporting surface of this supporting board 0 it is provided with a strip h.

On the upper surface of board a and at a short distance from the upper edge is provided a rail f of any suitable section, for which rail a groove is provided in board I). This rail f has the purpose to prevent the books or the like leaned against the inclined board I) from slipping down, whereas on the contrary they will rest against the said rail f.

For securing the supporting board in the position shown in Fig. 2 a special form of hinge is provided, this consists of the two plates 7.: and g, moving like a hinge toward each other, of which plate 70 is let into the undersurface of board (1 whereas plate 9 likewise sunk into the underside of plate a will when opened into the position shown in Fig. 2 give the support a steady stop and prevent it from folding back. Part is can be secured by means of screws or in any other manner to board a. In case the desk has too great an incline when the supporting board is opened, the said supporting board may be simply turned down on its hinges as shown in Fig. 1 and the board I) be left turned up as shown in Fig. 2.

Having now described my invention what I claim and desire to secure by Letters Patent of the United States is:

A. folding writing desk consisting of three boards hinged together, the top board projecting with its edge somewhat beyond the writing board, said writing board beveled at this edge against which bevel the top board rests when opened, a supporting board hinged to the underside of the writing board, and means for securing such supporting board in its supporting position as described.

ln testimony whereof I have hereunto set my hand in the presence of two Witnesses.

CHRISTIAN MOHR. Witnesses VILLIALI DiiOHLING, VVILHELM OZAYLSEN.

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