US711315A - Desk-lid support. - Google Patents

Description

No. 7||,3|5. Patented oci. I4, |902. w. HoLT. DESK LID SUPPORT.

V(Application tiled Apr. 1, 1901.'|

(No Model.)

UNrrED STATES PATENT OEEICE.

\VILLIAM HOLT, OF GRAND RAPIDS, MICHIGAN.

DESK-LID SUPPORT.

SPECIFICATION forming part of Letters Patent N0. 711,315, dated October 14, 1902.

Application filed April l; 1901.

T0 all whom, it may con/cern).-

Beit known that I, VILLIAM HOLT, a citizen of the United States, residing at Grand Rapids, in the county of Kent and State of Michigan, have invented new and useful Improvements in Desk-Lid Supports, of which the following is a specification.

My invention relates to a new and useful desk-lid support; and the invention consists in the combination, with a desk and lid, of a support consisting of a bar and link so con` structed and attached to the lid and desk as to hold the desk-lid in a horizontal position when opened by means ofthe support alone.

The objects of my invention are, Iirst, to simplifythe construction ofdesk-lidsupports; second, to dispense with the leverage action upon the support. These objects I accomplish by means of the mechanism illustrated in the accompanying drawings, in which- Figure l shows a vertical sectional View of a desk having the lid supported by my invention, the solid lines showing the position of the lid and lid-support when opened and the dotted lines showing the position of the lidsupport when the lid is closed. Fig. 2 shows an enlarged view ofthe lid-support detached, illustrating the position of the two bars of the lid-support when open.

Similar letters refer to similar parts throughout both views.

A represents the bent or angled portion of the bar which forms a part of the lid-support.

B represents the link or short bar which is pivoted to the bent bar A.

C shows the pivot which secures the bar B to the desk.

D shows the pivot which attaches together the bent bar A andthe bar B, the dotted lines in Fig. l showing the position of the parts when the desk-lid is closed.

F shows the desk to which the support is pivoted.

E is the pivot which attaches the bar A to the desk-lid S.

In Fig. 2 it will be noticed that D is placed near one side of the bars which are pivoted together. One of the bars is rounded, as

shown by H, for the purpose of forminga clearance.

G shows the position of the two bars meeting each other when the desk is open.

The

Serial No. 53,889. (No model.)

bar B turning upon the pivot D can be folded readily in one direction; butwhenit reaches a position so as to be in a line with the part of the bent bar A to which it is attached it is stopped by the meeting of the ends, which form shoulders, so the movement of the connected parts will be arrested when the desk-lid is open, as shown in Fig. 2 by G. Other forms ot' stops for the center joint of the bars can be employed, if desirable. IVhen the desk-lid is open, the strain is in the direction of a line drawn between the pivot E and the pivot O, and the bars A and B act as a single bar, they being connected so as to prevent them from opening beyond a straight line, as shown in Fig. 1. The lid S is attached to the case by any suitable hinge. The edect of the bars A and B when the lid is opened is to draw the lid in the direction of the desk and to retain the same securely in a horizontal position.

It will be evident that the function of the bent portion of the lower link is twofold. First, it serves the purpose of causing the elbowing of the links at the point of the pivotal connection when the desk-lid is raised,

and, second, it performs the function of di` the lid directly back upon the hinge and to prevent the upward strain upon the hinge, as

it would do if the two links were set forming the hypoten use of a right-angle triangle when the lid is open. Furthermore, by bending or curving the lower link in a manner as set forth it lies flush with the desk-lid when the lid is open and is therefore out of the Way.

Having thus described myinvention, what I claim to have invented, 'and desire to secure by Letters Patent, is-

1. In a desk-lid support, the combination with the desk and its lid, of an upper supporting member pivoted at its upper end to the inner face of one side of the desk, a lower supporting member having a shoulder integral with the same near its upper end and which is adapted to be engaged by the lower end of the upper member, said lower member having its lower portion curved outwardly and pivoted in the desk-lid, said curved p0rtion of the lower member adapted to lie flush with one face of the desk-lid when the latter is in its open position, and means extending 'through the upper end of the lower member strain upon the hinges of the lid when the latter is open and supported by said pivoted links, and suitable means for pivoting the two links together, so that when the desk-lid is raised, the two links will elbow at said means and allow the lid to be readily closed. In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

WILLIAM I-IOLT.

Witnesses:

EDWARD TAGGART, JAMES B. DAVIES.

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