US623221A - Type-writer attachment - Google Patents

Description

No. 623,221 Patented Apr. 18, I899. J. T. SIMMS.

TYPE WRITER ATTACHMENT.

(Application filed June 22, 1898) (No Model.)

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Unrrn STATES PATENT OFFICE.

JAMES T. SIHMS, OF TERRE HAUTE, INDIANA.

TYPE-WRITER ATTACH M ENT.

SPECIFICATION forming part of Letters Patent No. 623,221, dated April 18, 1899.

Application filed June 22, 1898 To all ZUh/OWD it may concern..-

Be it known that I, JAMES T. SIMMS, a citizen of the United States, residing at Terre Haute, in the county of Vigo and State of Indiana, have invented certain new and useful Improvements in Type-Vriter Attachments; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, and to the letters of reference marked thereon, which form part of this specification.

My invention relates to attachments whereby type-writing machines may be supported and attached to any form of desk or table; and the objects of myinvention are, first, to provide an attachment which can be easily attached to various forms of desks and tables in such manner that a type-writing machine mounted upon the attachment may be exposed when in use and hidden from view when not in use by the operation of the attachment, and, second, to provide an attachment forthe support of type-writin g machines which will be substantial, compact, and inexpensive. These objects I attain by means of the mechanism illustrated in the accompanying drawings, in which Figure 1 is a perspective view of the invention attached to a section of a desk with the top removed and with the shelf extended for service. Fig. 2 is a perspective View of the attachment folded and as it would appear when out of sight within the desk. Fig. 3 is a perspective view of the brace and its method of attachment to the shelf.

Similar letters of reference refer to similar from the plates 1) and into block-bearings d,- one of which is firmly attached to the inner side of each of the desk-posts e, thereby atberial No. 684,189. (No model-l taching the shelf a movably to the desk-posts. The block-bearings d are located and support the shelf just beneath the top or cover of the desk D. .Upon the reverse side of the shelf, as shown in Fig. 2, near the middle of the shelf and adjacent to each edge, are two plates f, similar to the plates 1) and adapted to receive strong bolts or pivots g, which project beyond the edges of the shelf and by means of a head upon the outer end of each confine two braces h. The braces h are constructed of iron or other suitable material and are perforated at the upper end for the purpose of receiving the bolts g, upon which they swing loosely between the heads of the bolts g and the edges of the shelf. The braces h are slotted at a point near their lower end for the purpose of engaging strong bolts 11, which are driven into and project from the desk-posts e at a point below the shelf for the purpose of supporting the braces, which in turn support the shelf when open and in position for use.

Two guide-plates n and 'n are attached to either edge of the shelf in such position that the braces 71, will swing between them for the purpose of holding the braces in proper position. A substantial bail or handle on is attached to the front edge of the shelf a in such manner that it can swing loosely and downward from the shelf at all times for the purpose of raising or lowering the shelf.

A strong brace or bar 0 is attached to thedesk back and slightly above the shelf a for the purpose of supporting any convenient form ofspring-and-ratchet pulleyp. A strong flexible metallic tape 2. is attached to the pulley p and winds and unwinds thereon. The loose end of the tape 25 is attached to a staple s, which is attached to the reverse side of the shelf, near the middle of the front edge thereof.

Having mounted my attachment to a desk or table, as described, any form of type-writing machine is firmly attached in any convenient manner to the upper surface of the shelf in the position indicated by the dotted parallelogram in the drawings. To operate my attachment, after a machine is mounted thereon I grasp the shelf by means of the swinging handle on and pull the shelf forward and upward until it is horizontal, and as the shelf is raised the braces engage the bolts, and thereby firmly support the shelf in a horizontal position and in front of the desk. To fold up the attachment, and thereby place'the 1nachine out of sight under the top or lid of the desk, I disengage the braces 71 from the bolts i, press down upon the out edge of the shelf until the spring of the pulley p will wind up the tape 25, and consequently revolve the shelf downward and backward upon the pivots 0 until it rests within and under the top of the desk in an inverted horizontal position, as shown in Fig. 2.

I have described the method of attachment of my invention to but. one form of desk, but reserve the right to alter the same by the addition of necessary braces or posts, if required by the different forms of desks-or tables.

Having described my attachment and its operation, what I claim as my invention, and desire to secure by Letters Patent, is

1. In a type-writer attachment, the combination with the two front posts 6 of a desk, of a swinging shelf having its rear corners pivoted to the said front posts as' shown, whereby it is adapted to revolve under the top of the desk, with the notched braces h, attached to the lateral edges of the shelf and adapted to engage the bolts -i projecting from the desk-posts,whereby the shelf is supported in a horizontal position, the guide-plates n and n, the plates f, the pivot g, the tape tattached to the outer edge of the shelf at one end and to the spring-pulley p at the other end, the spring-pulley p and the bar 0, the combination and arrangement of the various parts being substantially as shown and for the purpose set forth.

2. In a type-writer attachment, the combination with the front posts 6 of a desk, of a swinging shelf, pivoted to the said front posts and adapted to revolve forward and backward, the slotted braces h pivoted'to the shelf by means of the plates f and pivots g, the bolts 2, the block-bearings 01 attached to the desleposts and adapted to receive the pivots c, the bar 0 adapted to support the springpnlley the spring-pulley p furnished with the tape 75, whereby the outer edge of the shelf is connected with the spring-pulley, all substantially as shown and described and for the purpose set forth.

In testimony that I claim the foregoing as my own I aifix my signature in presence of two witnesses.

JAMES T. SIMMS.

\Vitnesses:

GEORGE M. DAVIS, SYDNEY I5. DAVIS.

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