US247474A - Ohaeles b - Google Patents

Description

C. E. 8v' W. BOURNE.

(No Model.)

'UPRIGHT PIANO CASE.

Patented Sept. 27, 1881.

i ith/ENTER UNITED STATES PATENT OEEICEO CHARLES E. BOURNE AND WILLIAM BOURNE, OF BOSTON, MASS.

UPRIGHT-PIANO CASE.

SPECIFICATION forming part of Letters Patent No. 247,474, dated September 2'7 1881.

Application filed March 21, 1881.

To all lwhom it may concern:

Be it known that we, CHARLES E. BoUItNE and WILLIAM BOUENE, citizens of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented a new and useful Improvement in Gases for Upright Pianos, of which the following is a specification.

Our invention relates to improvements in the construction and operation of the fallboard and music-rack in an upright piano; and the object of our invention is to improve the combination of parts by which the musicrack is brought into position for use or the reverse in the operation of opening and closing the piano, as shown in the previous application of Oharles E. Bourne filed in the Patent Office July 28, 1880, and now pending, so that the desired result may be more easily and effectively attained, and also to so construct the musierack itself and the parts in connection with it that it may fold automatically into less space than it would otherwise occupy.

Our invention is illustrated by the accom panying drawings, in which Figure 1 is a vertical section, showing the position of the parts when the caseis closed; Fig. 2, a vertical section, showing the position of the parts when open; Fig. 3, a perspective view of the lower corner of the music-rack, with theirod by which the position of the ledge at the bottom of the rack is controlled.

The fall-board A B is made in two parts, connected by hinges and suspended from the arms O O D D, as in said former device, except that the arms D D are made somewhat longer and are attached to the case at points in a line with the pin on which the lever E turns, so as to permit the lever E being attached to the rear end of the fall-board without interfering with its movements. The lever E is hinged at its lower end to the rear end of the fall-board A B, and at the upper end is curved slightly upward, so as to catch under the hook H, attached (No model.)

to the back of the music-rack F. By this arrangement the music-rack isv drawn back by a positive movement when the fall-board is brought forward in closing the piano, instead of being entirely dependent for this purpose on the spring G and the weight of the rack itself, as in the device above referred to.

`The music-rack is made in two parts,Fand I, the latter forming a ledge for the support ot' the music-book, and attached to the former by hinges, so as to permit it to fold up against it. To the inner side of the ledge I are pivoted the rods K, the upper ends of which are pivoted tothe piano-case at points below that at which the rack itself is suspended. These rods are curved at their lower ends, and are so adjusted with reference to their length and points of suspension that when the piano is closed the ledge I is turned up against the upright portion of the rack, as shown in Fig. 1, and when it is opened is drawn down in position for use, as shown in Fig. 2.

We do not claim, broadly, the combination of a jointed swinging fall-board with a suspended music-rack and intermediate mechanism arranged to opera-te so that the suspended music-rack Inay be thrown forward or back- Ward on opening or closing the fall-board, as this was shown in the application of Charles E. Bourne above referred to.

That we claim, and desire to secure by Letters Patent, is-

l. The lever E, pivoted to the piano-case and attached by hinges to the swinging fall-board A B, in combination with the hook H on the music-rack F, substantially, as described.

2. The music-rack F,providedwitl1 the hin ged ledge I and rods K, constructed and arranged to operate substantially as described.

OHAS. E. BOURNE. WILLIAM BOURNE. Witnesses:

C. B. KENDALL, JAs. A. L. WHITTIEE.

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