US129510A - Improvement in piano-stools - Google Patents

Description

S. W. BABBITT.

Improvement in Pia1f1oStoo|s-y UNITED STATES# S. WILLIAM BABBITT, OF WEST MERIDEN, GONNEQTICUT.

IMPROVEMENT IN PIANO-STOOLS.

Specification forming part of Letters Patent No.129,510, dated July 16,1872.

SPEorFIcA'rIoN.

To all whom it may concern:

Be it known that I, S. WILLIAM BABBITT, of West Meriden, in the-county of New Haven and State of Connecticut, have invented a new and useful Improvement in Piano-Stool and I do hereby declare that the following is a full and exact description of the same, reference being had to the accompanying drawing and to the letters of reference marked thereon.

This invention has for its object the furnishing of` a suitable support for the back ofa person using a piano-stool; and consists mainly in the combination of a plate rigidly secured to the standard of the stool, with a detachable back and its connections, as will be fully described hereinafter.

In the drawing, Figure 1 represents a side elevation of a piano-stool having my improved device attached thereto; Fig. 2, a perspective view of the frame which supports the back 5 and Fig. 3, a perspective view of the plate which rests upon the piano-stool standard.

To enableothers skilled in the art to make and use my invention, I will now proceed to describe fully its construction and operation.

A represents the piano-stool, which is preferably constructed -in the usual well-known manner. B represents a plate adapted to rest upon the top of the stool-standard, which plate is provided with a central orifice, b, through which passes the screw of the seat, and with the square opening b1 upon one side of the center, which opening is adapted to receive the arm of the adjustable back. The plate B is secured to the top of the standard of the stool by means of the flanges b2 b2, forming a portion of the plate upon one side, and the independent clamp b3, which is held and adjusted by means of the setscrew b4 resting n the projection b5, as shown.l C represents a frame having a horizontal arm, c, and vertical arms cl o2 pendent at each end of the horizontal arm, the former of which, c1, is adapted to rest when in place in the square opening b1 of the plate, and the latter of which, cz, is adapted, by means of a square opening throughout its length, to receive the square rod d attached to the back D, as shown. The arm c1 is provided also with a set-screw, c3, by means of which the rod attached is held at any desired height. The frame C is further provided with an inclined arm, c4, attached to the lower end of the arm c2, and supported by the vertical brace c5, which arm is provided at its lower end with a curved slot, c6, and upon one side with a pin, c. E represents a bar provided at vone end with a yoke, c, adapted to rest against the curved portion of the piano-stool standard, and at the other end with a slot, e1, as shbwn. This bar is attached to the frame C by means of a set-screw and nut, c2, which screw passes through the slot c1 in the bar E, and also through the slot c6 in the frame C. The slot el also incloses the pin c7, as clearly shown in the drawing. i

The operation of myinvention is as follows: The plate A is first secured in place upon the top of the standard of the pianostool, the seat having been removed for that purpose. When thus secured the back may be used whenever desired by simply catching the arm c1 of the frame into the square orifice b1 of the plate. The arm c1 and the orifice b1` being of corresponding rectangular form, the frame is rigidly held for turning to either side. .To prevent undue strain upon the frame, and to hold it securely in place, the brace-bar E is so adjusted as to bear firmly against the standard, as shown, this adjustment being readily made by means of the set-screw and slotted arm. The height ofA Y 1'. The combination of a plate removably f attached to the standard by means of a set-Y and brace-bar E, as and for the purpose set. screw and clamp, with the detachable frame forth. I having an adjustable back, as described. This specification signed and witnessed this 2. The plate B, constructed as described, 17th day of J une7 1872. with its orices,anges, c1amp,and set-screw, in combination with the frame C with its arms, arranged as described, back D with its rod d,

Witnesses: S. WM. BABBITT.

CHARLES H. SHAW, FRANK S. FAY. j

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