US603617A - Piano-stool - Google Patents

Description

(No Model.)

H. B. BANES.

PIANO sTooL. No. 603,617. Patented Mey 10,1898..

mr. wams PETERSy co, PHOTaMTHo., wAsmNsToN, n. c.

UNITED STATES PATENT OFFICE.

HENRY B. BANES, OF BRISTOL, PENNSYLVANIA.

PIANO-STOOL.

SPECIFICATION forming part of Letters Patent No. 603,617, dated May 10, 1898. Application filed May 29, 1897. Serial No. 638,806. (Nomodel.)

To all whom it may concern:

Be it known that I, HENRY B. BANEs, of Bristol, in the county of Bucks andState of Pennsylvania, have invented certain new and useful Improvements in Piano-Stools; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improved adjustable piano-stool; and among the objects of the same are to provide a stool having two seat-sections, each capable of Vindependent vertical and horizontal adjustment, with improved means of quick and convenient adjustment and also certain novel and useful features of construction. I rattain these objects by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a front elevation of my device, showing the seat-sections locked in engagement with each other and partially raised from the base. tical section .of said device. verse vertical section of same.

Fig. 8 is a trans- Fig. 4 is a perspective view of the upper end of the socket with pawl mounted thereon. Fig. 5 is a section of the bolt for securing the seatsections together. lFig. 6 is a horizontal section of a portion of end of casing, showing the end of the shaft for manually operating thepawl. v

Referring to the said drawings, 1 indicates the casing constituting the base or support for the seat supporting or elevating rods. The

said casing is provided with drawer-compartments formed therein, said compartments forming between them a' longitudinally-extending way 2, in which the sliding sockets 3 are adapted to move. Each of said sockets is closed at its lower end and providedat its upper end with the flanged head 4, the flanges being elongated to'form plate 5, as illustrated in Fig. 2. Rods 6 extend longitudinally from end to end of the casing just above the drawercompartments. Upon these rods ride the lugs 7, which are attached to the under side of the flanged heads 4, so that the sockets are movable upon said rods.

Positioned upon the top walls 8 of the drawer-compartments are the strips 9, which Fig. 2 is a longitudinal verterminate short of the inner sides of the said compartments to form a space for the purpose of receiving the rods 6 and the lugs and ianges of the heads 4, and located upon the upper faces of said strips 9 are the spacingboards 10, which project beyond the inner end of said strips 9 to prevent the withdrawal of the sockets when the said rods are elevated.

11 indicates the top boardv of the casing, which is provided with the longitudinally-extending slots 12 adjacent its ends for the move-- ment therein of the elevating-rods 18 of the seat-sections. The elevating-rods 13 are provided with spiral ratchet-threads, terminating short of their lower ends, so as to leave the smooth portions 15,which iit snugly within the sockets. 5 An air-cushion is formed therebeneath when the rods are lowered, thus perlmitting the pawls for holding the elevatingrods at the desired elevation to be disengaged therefrom and the seat-sections lowered without noise or jar. Small apertures lmay be made fin the lower` parts of said sockets to permit ofthe gradual admission "or expulsion of air intojorl from the sockets as the elevating-rods are raised or lowered, respectively.

The shafts 17 are rotatably supported at their inner ends upon thestrip 18,'which is :attached to the upper ends of the" drawercompartments' and extends transversely the central way2. The outer ends of these shafts extend through the end walls of the casing and the plates 19, secured thereto, and are provided at said outer ends with knobs for the purpose of manually rotatingsame for operating the pawls, as hereinafter described. The said plates 19 have their central portions sunken within the end portions of the casing to receive the said knobs. The strip 1S also serves as a stop against which the elongated flanges 5 abut to limit the movement thereof. Upon the top of each head 4 is a housing or casing 2l, through which the shaft 17`loosely extends, and slidably mounted upon said shaft within the casing is a pawl 22, having a portion of its inner edge cut out to receive the strip of resilient material 23a, so that as the seat-section is drawn upward the operation will be noiseless, as the resilient strip sliding on the ratchet will deaden the sound ofthe ratchet. Each pawl is provided with IOO a feather 24, which engages a way 25, formed in the shaft 17, and is normally held in engagement with the ratchet-thread of the elevating-rod by a spring 23, so that when it is desired to lower the seat-section rapidly shaft 17 is given a partial rotation,which disengages the pawl from the ratchet-rod and permits the seat-section to lower. A lug 26 is formed on the pawl, so that it will be necessary to give the shaft but a slight rotation in order to raise the pawl to permit the insertion of rod 13.

Upon the upper end of each elevating-rod 13 is a head 27, which engages in the transversely-extending guides 28, formed on the under side of each seat-section 28', said head being formed with a slot 29, which is engaged by the spring-actuated bolt 30, the stem of which extends through the side wall of the seat-section, where it is provided with a knob 31 for manual operation. By disengaging this. bolt from the head of the elevating-rod the seat-section may be moved transversely of the casing, or by giving the rod a partial rotation. said seat-sections may be moved upon the elevating-rods in a direction longitudinallzy of the casing, so that the seat-sections may be further separated when the limit of movement of the socketswithin the casing is reached'.

I will now describe thebolt for uniting the seat-sections, which is formed with the securing-plate 30, in which the disko'r plate 31fL is'rotatably secured, said plate being provided with a gn-ide-loop 32, in which the bolt 33 is movablelaterally, said bolt being provided with the stop 34 to prevent its being withdrawn th-erefrom and with. the handle portion 35. The keeper for this bolt consists of the platef36,which is secured to the adjacent seatsection, and having the circular plate 37 rotatably secured therein, similar to the plate 31, said plate carrying the loop or keeper 38 to receive the bolt. When this bolt is engaging the keeper, it will be understood that the:

seats cannot be rotated, so that they are not separated by the operator in sitting thereon or rising therefrom; but when one of the seatsections is drawn upward or moved longitudinally the bolt automatically disengages its.

keeper by reason of said bolt and keeper being swiveled to the respective seat-sections.

A music-rack 39 is formed on one side of the casing, and the drawers 30 are provided.

with the drawer-compartments, said drawers j having the rings 41 for withdrawing the same from the easin g. It will? be noticed that the seat-sections may be drawn; upward by the loops 43, the pawls permitting said movement, and as soon asthe upward movement of the sections is discontinued the pawlswill rengage in the ratchets of the elevating-rods to retain the same in the elevated position. `When it is desired to lower either seat-section quickly and` without rotating same, the shaft 17,` carrying the pawl, is manually rotated, causing the disengagement of the pawl from the ratchet-threads, when Y bottom of the socket.

the seat-section will gradually lower without jar, owing to the air-cushion formed between the lower end of the elevating-rod and the When the seat-section has been lowered to the desired position, it may be retained in said position by releasing the shaft 17, whereupon the spring-actuated pawl engages with the ratchet. The seat- -f sections may also be raised or lowered by rotating the same to cause the travel of the spiral ratchet upon the engaging pawl. It will thus be seen that I have so constructed the device that the seat-sections are capable of independent vertical and horizontal, longitudinal and transverse adjustment and may be raised or lowered either by revolving the4 same or by the rectilinear movement thereof, so that the vertical adjustment may be accomplished slowly or rapidly, as desired.

I do not desire to limit myself to ihespecilc details4 of construction, but reserve to myself the right to change, modify, or vary such details that properly come within the scope of `my invention.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination of a spiral ratchet-rod', a pawl adapted to en gage therewith, laterallymovable means of supporting and guiding the ratchet-rod and supporting the pawl, a seat supported by said ratchet-rod and laterally movable thereon and means adapted normally .to restrain and to be manually operated to `permit the said lateral movement of the seat fupon the ratchet-rod.

2. rlhe combination of aspiral ratchet-rod,

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.a pawl adapted to engage therewith, means 7of manually operatingthe pa-wl to disengage it from. the ratchet-rod, the pawl adapted nor- ;mally to. restrain the downward rectilinear emovement. and toA permit the upward rectiylinear movement of the rod andto: permit the upward-and'fdownward rotating movement of l'said rod.

3. Thecombination with a supporting-base` of a spiral ratchet-rod., a pawli adapted to engage therewith, means, laterally movable with respect to the supporting-base, of supporting and guiding the ratchet-rod and supporting the pawl, a rotatably-mounted shaft adapted to actuate the pawl by its rotation but to per- `mit the lateral movement of the pawl. upon it, substantially as. described.

4. The combination with a support of independently vertically adjustable seat portionsymovable laterally thereon and an automatic self-releasing bolt for preventing the independent rotation of the seat portions when the same are together but adapted to release the same when they are moved apart either vertically or laterally, substantially as described.

5. The combination withasupport, of independently vertically adjustable seat portions, movable laterally thereon, and an automatic self-releasing bolt for preventing the independent rotation of the seat portions, but

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adapted to release same when they are moved vertically or laterally, substantially as described.

Aratchet, a shaft rotatably mounted upon the support, a pawl carried by the socket, and adapted to engage the ratchet, said pawl being slidable upon the shaft but locked from rotation thereon, whereby when the said shaft is operated, the pawl is disengaged from the ratchet, and a seat portion carried by the elevating-rod, substantially as described.

In testimony whereof I have signed this specication in the presence of two subscrib- HENRY B. BANEs.

ing witnesses.

Witnesses:

EDWD. B. FOX, JAMES W. BEvANs.

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