US471184A

US471184A - Albert r

Info

Publication number: US471184A
Authority: US
Publication date: 1892-03-22
Anticipated expiration: 1909-03-22

Description

A. R. MILNER.

ADJUSTABLE PIAN() STOOL.

(No Model.)

Patented Mer. 22, 1892.

ma nonms PETERS co., mom-wma, wnsmxufon. n. c.

.a full, clear, and complete description thereof.

f UNTTED STATES PATENT rrrcn,

ALBERT R. MILNER, OF CLEVELAND, OHIO, ASSIGNOR TO THE MILNER MUSIC COMPANY,

OF SAME PLACE.

ADJ USTABLE PIANO-STOOL.

SPECIFICATION forming part of Letters Patent No. 471,184, dated March 22, 1892.,-

Application iiled July 6, 1890. Serial No. 357,921. (No model.)

To @ZZ whom t may concern:

Be it known that I, ALBERT R. MILNER, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Adjustable Piano-Stools; and I do hereby declare that the following is The nature of my invention relates to the construction and arrangement of the various parts of an adjustable piano-stool, as hereinafter fully explained, whereby the neatness, durability, and strength of the stool are enhanced.

That the invention may be seen and fully understood by others reference will be had to the following specification and annexed drawings, forming part thereof, in which- Figure l is a perspective View of the complete stool. Fig. 2 is aV plan view of the sleeve and seat-attaching plate. Fig. 3 is a vertical section of the entire stool. Fig. a is a side elevation of one of the detachable legs, and Fig. 5 a plan View of the leg-brace.

Like letters of reference designate like parts in the specification and drawings.

A hollow casting or sleeve A, having a seatattaching plate on its upper terminal, said plate being preferably an integral part of the sleeve A, is screwed, bolted, or otherwise rigidly attached to the seat. The bore of the uppei1 portion of the sleeve A is polysided, the one herein described being hexagonal. A hexagonal nut G, Fig. 3, is dropped into the sleeve A fromthe upper side before the seat is attached thereto.- The nutis therefore easily removed and replaced by a duplicate at a trilling cost in case of Wear. Two semicircular castings F F, forming a twopart sleeve, are then placed in the sleeve A on top of the hexagonal nut G. The upper terminals of the castings F F, being in contact with the seat of the stool when said seat is attached to the plate, hold the nut in place. The rod D, threaded part Way down from its upper end, passes up through the opening in the sleeve A, as shown in drawings, entering the nut G. The sleeve A extends down around the rod D, hiding the threaded portion of said rod when the seat is lowered, raised to its extreme height, or at any intermediate point, thereby excluding all dust or sand. Said sleeve turns freely around the rod D.

My improved stool may have three or more legs, the one shown in drawings having three, which are attached to the rod D in the following described manner: The legs are each substantially the form shown in Fig. 4, having a lug or hook J, which is an integral part thereof. Said hook is inserted in the eye c at the outer terminal of an arm of the leg-brace C, Fig. 5. There are the same number of arms to said brace as there are legs to the stool, each arm having a similar eye, as shown in Fig. 5. vThe upper terminals of the legs are then`brought in contact with each other and the ring H placed over them, holding them together,

thereby locking the legs rigidly to the brace,

resultant from the pressure of the shoulder O of the leg on the shoulder Q of the leg-brace and the peculiar form of the hook J. The upper terminals of the legs are so formed that when brought in close contact with each other they will form a circular opening within the ring H. The rod D, having a shoulder L, Fig. 3, thereon, passes down through the ring H and the circular opening formed at the upper terminals of the Ilegs B B vB, said shoulder coming in contact with the ring H, and the l lower end M of the rod D will enter the hole N, Fig. 5, in the leg-brace C. A screw is then threaded into the lower end of the rod D from beneath the. leg-brace C, causing-a tension or strain on the legs B B B, resultant from the drawing of the shoulder L on the ring H; or a nut may be threaded on the lower end of the stein and bear on the under side of said brace and still adhere to the nature of my invention. It will readily be seen that the tension thus caused on the legs and brace will form a perfectly rigid frame. The threadon the upper portion of the rod D may be square or it may be a V-thread, a square thread, how eve r, being preferable. ing down over the rod D in the manner herein described, prevents sand, dust, dac., from entering the thread on said rod. Consequently there is less wear than in the ordinary stool, where the rod is attached to the seat and screws down into the standard.

The sleeve A, extend- Having described my invention, what I claim, and desire to secure by Letters Patent, 1s

1. In au adjustable piano-stool, the sleeve A,rigidly attached to the seat, the upper portion of the bore of said sleeve being polysided in form, in combination With a polysided nut G and two-part sleeve F F, arranged Within said sleeve A in conjoint operation With the screwuod D, legs l2 B B, and leg-brace C, arranged substantially in the manner and for the purpose set forth.

2. In a piano-stool, a seat having a sleeve attached to the under side thereof, a supporting-rod the upper end of which is contained