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Publication numberUS831574 A
Publication typeGrant
Publication dateSep 25, 1906
Filing dateDec 4, 1905
Priority dateDec 4, 1905
Publication numberUS 831574 A, US 831574A, US-A-831574, US831574 A, US831574A
InventorsMerritt F Stanley
Original AssigneeMerritt F Stanley
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 831574 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

PATENTED SEPT. 25, 1906.



5a ,0 H I B 0 TNESSES:

1n: NORRIS PETERS cm, wasummufl o. c.



Specification of Letters Patent.

Patented Sept. 25, 1906.

Application filed December 4,1905. Serial No. 290,076-

To all whom it may concern..-

Be it known that I, MERRITT F. STANLEY, a citizen of the United States of America, residing at Northville, in the county of lVayne and State of Michigan, have invented certain new and useful Improvements in Piano- Benches, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention has particular reference to that class of piano stools or benches which are provided with means for raising and lowering them; and the invention consists in the improved means for raising and lowering the bench and in the provision made for shifting the seat laterally, all as more fully hereinaf ter described, and shown in the accompanying drawings, in which Figure 1 is an elevation, partly in section. Fig. 2 is a cross-section substantially in the plane a a: of Fig. 1. Fig. 3 is a horizontal section substantially on line y 3 Fig. 1 Fig. 4 is a vertical section on line 2 .2, Fig. 1.

In the drawings, A is the frame of the bench, embodying four corner-posts B, which form the legs of the bench a shelf C, mounted in the lower part of the frame, and a horizontal top member C.

i is a vertically-adjustable seat-frame comprising the seat-supporting bed-plate a and the vertical guide-posts 5, depending from its under side, and E is the seat proper supported upon the seat-frame. The frame A is provided adjacent to its ends with vertical guide-bearings F, into which the guide posts I) engage and are vertically guided therein.

Grepresents rack-bars carried by the guideposts I), and H is a transverse shaft j ournaled at its ends in the vertical guides F and carrying pinions c, engaging with the raclcbars G.

I is a ratchet-wheel mounted upon the shaft H midway between the ends thereof. It is inclosed within a housing (Z, which is secured to the top member C of the bench frame and forms additional bearings for the shaft H.

WVithin the housing (Z is pivotally secured a dog J, which is held normally in engagement with the ratchet-wheel by a spring 6. It proj ects rearwardly and terminates in a convenient handle for manual operation.

Upon the seat-frame is supported the shifting seat E, which is preferably of the same length as the member a of the seat-frame and projects down over the front and rear edges of the bed-plate of the seat-frame. This shifting seat carries upon its under side small track-wheels j, which are adapted to travel upon longitudinal guide-rails or guide-grooves g on the bed-plate, and thereby adapt the seat to be shifted laterally. To permit the seat to be held stationary, a clamping-bolt h is secured to the under side of the seat and projecting through a slot in the bed-plate bears upon its lower end a clamping-nut *5, adapted for manual operation.

Being constructed and arranged as shown and described it will be readily understood how the seat can be adjusted higher or lower or be shifted laterally, if desired.

The practical advantage is that the adjustments provided are very simple to manipulate even by a child without danger to the hands or fingers or of having the dress caught in the moving parts, the gear-wheels 0 being inclosed within recesses in the guides F and the ratchet-wheel and dog being inclosed by the housing.

Another advantage of my construction is that it affords ample room within the frame for storing away music, and I intend to provide in this space additional shelving, as indicated by dotted lines, for instance. By this additional shelving the open space in the guides F below the guide-posts I) would be inclosed, and thus form an air-check to prevent the seat from dropping too suddenly when the dog is released. Other means, however, may be provided for this purpose, and I also place a rubber pad K at the bottom to form a buffer.

Having thus fully described my invention, what I claim is 1. In a piano-bench, the combination of a bench-frame provided at opposite ends with vertical guide-bearings, a seat-frame having vertical guide-posts extending downwardly therefrom into the guide-bearings and provided. with rack-bars, a shaft horizontally journaled in the bench-frame and carrying pinions engaging with the rack-bars, a ratchet on the shaft, a housing secured to the benchframe and inclosing the ratchet and a manually-operative dog pivotally secured in the housing.

2. In a piano-bench, the combination of a bench-frame having corner-posts forming the legs of the frame, a shelf extending between the corner-posts in the lower part of the frame, vertical guide-bearings in the opposite ends of the frame and extending to the top of the bench, at seat-frame having Vertipivoted Within the housing and extending IO cal guide-posts extending downwardly thererearwardly of the bench-frame.

from into the guide-bearings, a horizontal In testimony whereof I affiX my'signature shiiift jonrnaled in the bineh-frarne, g r2501? in presence of two Witnesses.

an inion engagement etWeen sai s a t and dhe vertical guide-posts of the seat-frame, MERRITT STANLEY a, ratchet-Wheel on the shaft, a housing se' 1 Witnesses:

cured to the bench-frame and inolosing the OTTO F. BARTHEL,

ratchet-Wheel and a manually-operated dog THOS. G. LoNGsTAFr. v

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2620020 *Apr 22, 1947Dec 2, 1952Austin Dwight EFolding seat
US2679283 *Dec 30, 1950May 25, 1954Mahone Moses LouisInvalid chair
US4395010 *Apr 13, 1981Jul 26, 1983Tandberg Data A/SDevice for the setting up of a data display device on a work surface
US5311790 *Jul 22, 1992May 17, 1994Ken YanagisawaDrive system
Cooperative ClassificationA47B13/081, F25D2325/023