US1359706A

US1359706A - Thure a

Info

Publication number: US1359706A
Authority: US
Publication date: 1920-11-23
Anticipated expiration: 1937-11-23

Description

T. A. JOHANSON.

MUSIC DESK FOR PIANOS.

APPLlcATloN FILED AuG.12, ma.

1,359,706. Patented Nov. 23, 1920.

UNITED STATES PATENT OFFICE.

THURE A. JOHANSON, OF ST. CHARLES, ILLINOIS, AS-SIGNCR TO THE CABLECOMPANY,

OF CHICAGO, ILLINOIS, A CORPORATION 0F ILLINOIS.

MUSIC-DESK FOR PIANOS.

Specification of Letters Patent. Patented NOV. 23, 1920,

Application led August 12, `1918. Serial'No. 249,430.

To all whom t may concern.'

Be it known that I, THERE A. JOHANsoN, a citizen or" the United States, residing at St. Charles, in the county of Kane and State of Illinois, have invented new and useful Improvements in Music-Desks .for Pianos, of which the following is a full, clear, concise, and exact description, reference being had to the accompan'ing drawing, forming a part of this speci `cation.

My 1nvention relates to music-desks for pianos.

One of the objects of my invention is to provide a musicdesk construction which will be simple, neat, durable, and eiiicient. Further objects willappear from the detailed description to follow and from the appended claims. l

In the drawings, in which an embodiment of my invention is shown,

Figure 1 is a perspective View, showing a portion of agrand piano having a musicdesk embodying my invention; and

Fig. 2 is a vertical fore-and-at section, substantially on the line 2--2 of Fig. 1.

In order to give a general idea of the invention, itis here stated that rthe musicdesk comprises a board, or panel, standing about eight inches high and extending substantially the width of the piano, which board. or panel, is arranged so as to be' movable from an upright position, in which it may be used as a support for books or sheetmusic, to a horizontal position, in which it is out of the way. The panel is pivoted at its lower edge upon a sliding support, so that it may occupy its upright, music-supporting position and be drawn forward to place the music in a position convenient for the performer, and so that it may be lowered into horizontal position and the sliding support pushed back, in order that the parts will be out of the way, and may be covered by the top or lid of the instrument when not in use. Means are provided so that. when the panel is raised to its upright position by the operator, it will be held at the desired slant, which means will, however, permit the panel to be readily swung down fiat when not in use.

Referring now to the drawings in detail, the construction shown comprises the pivoted panel 10, hinged at its lower edge, as indicated at 11, to a sliding support 12. This sliding support 12 comprises right and left hand end-

members

13, 13, respectively, which are provided with grooves, as findicated at 14, 14, for slidable engagement with

guides

15, 15 secured to the

sides

16, 16 of agrand piano. rlhe end-

members

13, and 13 are connected by two parallel crossmembers 1T, 18. The panel 10 is hinged on the cross-member i7 and has a pivotally attached, extensible prop 19 connected with the cross-member 18. The prop 19 comprises a tubular member 20, hinged at 21 to the cross-member 1S, and a rod 22, hinged at 23 to the panel 10, the rod 22 sliding within the tubular member 20 asthe panel is swung upon hinges 11, 11 into and from upright position. l

For limiting the telescopic movement of the rod 22 into the tubular member 20, the rod is provided with a shoulder-portion 24, which engages the edge of the tubular member 20 when the panel 10 is raised. The lengths of the member 20 and the rod22 and their relation to the rest of the construction aresuch that. when the panel 30 is moved to its horizontal position (the dotted-line position shown in Fig. 2), the rod 22 will still he in telescopic engagement with the member 20. f

The rod 22 fits rather snugly in the tubular member 20, so that. when the panel is being raised to its upright position and the rod 22 is` moving into the tubular member 20. the air in the tubular member 20 will be compressed and will act a cushion, or shock-absorber, to prevent liarring when the shoulder-portion 24. engages the edge of the tubular member 20.

When the music-desk is in use, the panel 10 occupies an upright position and serves as a support for bool: or sheet. music, in the usual manner. the sliding support beine:

drawn vforward to place the music in a posaid music-desk in its upright position, comprising a swinging member, a pivot upon whieh said member swings, and a secondv member pivoted to swing upon said inusiedesk and having a sliding eonneotion with said swinging member.

Q'. A piano construction comprising a music-desk pivoted to swing from a position in which it is substantiallyhorizontal to an upright position, and means for supporting said music-desk in its upright position, comprising a swinging mem-ber, a pivot upon which said number swings, and a second memberp'ivoted to said music-desk and hav-- ing a telescopic engagement with said swinging member.

3. A' piano construction comprising a music-desk pivoted to swing from a sul stantiaily horizontal position to an upright position; means for supporting said musicdeskin upright position, comprising swinging member, a pivot upon which said meinber swings, and a second'member pivoted to swing upon said music-desk and having a sliding engagement with said swinging member; and means for limiting the relative sliding movement ofA said membersv to hold said music-desk in the desired upright position.

el. A piano construction comprising a music-desk pivoted to movefrom a substantiall',T horizontal position to an upright position, and means for supporting said musicdesk in its upright position, comprising innervand outer telescoping members, one of saidniembers being mounted on a ed pivot and the other of said members being pivoted to said music-desk.

5. A, piano construction Comprising a music-desk pivoted to move from a substantiall)7 horizontal position to an upright position, and means for supporting said musicdesk in its upright position, comprising inner and outer teleseoping members, one of said members being mounted on a fixed pivot and the other of said members being pivoted to said music-desk; the inner one of said members having a shoulder for engaging the edge of the outer one of said members to limit the telescoping movement of said members and support said music-desk in the desired upright position.

6. A piano construction 'comprising a music-desk pivoted to swing from a position in which it is substantially horizontal to an upright position, and means "for supporting said music-desk in its upright position, comprising inner and outer teleseoping members, one of said members beingmounted on a lixed'pivot and the other ofsaid members being pivoted to said music-desk; said members engaging each other snugly, whereby the air in the 'outer one of said telescoping members acts as a cushion to prevent jarring of said music-desk.

7. A piano construction comprising a music-desk pivoted to move from a position in which it is substantialljy1 horizontal to an upright position, and means for supporting said music-desk in its upright position, comprising a swingingpmember, a pivot upon which said member swings, and a second member pivoted to swing upon said musicdesk and having a sliding connection with said swinging member, whereby said two members constitute an extensible link, said link being in its inextended condition when said music-desk isin upright position.

In witness whereof I have hereunto subscribed my name.

THURE A. JOHANSON Witnesses H. L. Dmrniz, J. CLARKE HAGEY.