US541249A - price - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

F. 0. PRICE. ADJUSTABLE CHAIR.

Patented June 18, 1895.

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(No Model.) 2 SheetsSheet. 2. F. 0. PRICE.

ADJUSTABLE CHAIR; No. 541249. Patented June 18, 1895.

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UNITED STATES PATENT OFFICE.

FREDERICK C. PRICE, OF NEYV YORK, N. Y.

ADJ U STABLE CHAIR.

SPECIFICATION forming part of Letters Patent No. 541,249, dated June 18, 1895.

Application filed November 28, 1894. *Serial No. 530,214 (No model.)

To all whom it may concern:

Be it known that I, FREDERICK 0. PRICE, of the city and county of New York, inthe State of New York, have invented a new and useful Improvement in Adjustable Chairs, of which the following is a specification.

My invention relates to an improvement in adjustable chairs, with the object in view of simplifying their construction and rendering the movements easily controlled by the operator.

The particular form of chair which I have chosen to embody my invention is one adapted for use as a barbers chair, although the several features which I shall hereinafter call particular attention to may be utilized in connection with dental or surgical chairs, if so desired.

In the accompanying drawings, Figure 1 is a view of the chair in side elevation with the parts in the position which they assume when the occupant is sitting upright or in position for hair-dressing. Fig. 2 is aview in side elevation, showing the pedestal in vertical section, the parts being in the position which they assume when the occupant is tilted back into a position for shaving. Fig. 3 is a top plan view of the seat-frame andthe chairsupporting yoke the upper part of the chair being removed; and Figs. 4, 5, and 6 are enlarged views of parts in detail.

The pedestal is denoted by A and is here shown as terminating in supporting legs a. The pedestal is internally screw threaded and the chair supporting spindle B is externally screw threaded to register with the screw threaded interior of the pedestal.

The spindle B is made hollow for the reception of the stem 0 of a set of stops 0 secured to the upper end of the stem 0 for locking and releasing the chair relative to the sup-.

porting spidle B. The upper end of the spindle B is provided with an annular recess 1), for the reception of the hub D of the yoke to which the body of the chair is pivoted. The opposite arms d and d of the yoke are fitted at their outer ends to receive pivotal bolts e which engage lugs on the arms cl d and on the base of the chair to pivotally secure the chair to the yoke.

The base frame of the chair is denoted by of the yoke.

F and consists of side bars'and cross bars, as is common, and froin the base frame F there are uprising posts f, f at the rear and front for supporting the back and arms of the chair, as is common. I have chosen to form the postsf, f and the side bars of the base frame of L or U-shaped iron, more particularly for the reception of certain operating rods, which I shall hereinafter more particularly refer to.

From the base frame F there depends a supporting frame F for the reception of the foot rest frame F In the foot rest frame F 1 provide a foot rest G, so balanced upon its pivotal supports that when the chair is in the position shown in Fig. 1 or its-upright position, the foot rest Gwill present a flat surface g to the foot of the occupant, and when the chair is tilted back into the position shown-in Fig. 2, the foot rest G will, under the influence of gravity, roll over into the position shown in Fig. 2, presenting-an upholstered or cushioned surface g for the reception of the leg of the occupant.

The tilting back section II is pivotally secured to the postsf at h and has secured to it a sector bar 72. in positionto engage a spring dog 71. (see Fig. 4) which latter is fastened to the inner face of the postf. The view taken in Fig. 4 is an enlarged view in detail, looking from the front to the rear, of the parts in the immediate neighborhoodof the sector bar h.

An operating lever I is pivoted to the post fat 7 and its short arm is connected by a rod 2" extending along down within the U-shaped post f, connecting with one arm of the anglelevert' pivoted at the corner of the base frame F, the other arm of the angle lever'i being connected by a rod i (see Fig. 3) with one, arm of a lever 01, pivoted at t to a suitable support on the base frame F, the opposite arm of the lever i being connected by arod t with a spring actuated dog 11 in position to engage a rack bar f depending from the base frame F. The rod 71 and dog 77 are supported by an arm d extending forwardly from thehub -D' The lever t has its pivot 71 located as near as may be in axial alignment with the pivots e which connect the chair with the yoke, so that'the lever 2' will not be materiallydisturbed during the rocking movement of the chair and its pivotal connection i preferably consists of a ball and socketconnection shown in detail and enlarged in Fig. 5.

The operating leverI is so arranged that its short arm, denoted by I (see Fig. 4), when the lever I is pulled backwardly, will engage the stock of the spring dog h and press the dog toward the postfout of engagement with the teeth of the sector bar h, therebyleaving the chair back H free to be tilted. This same backward pull on the lever I will, through the connections 2", t t 2' aud t withdraw the dog 2' on the rack barf thereby permitting the chair as a Whole to be tilted upon its yoke. It therefore follows that when the. lever I is pulled back, it simultaneously releases. the

back so that it may be adjusted to any desired.

angle with respect to the body of the chair; releases the body of the chair as a whole, so that it may be tilted in. any desired angle with respect to thepedestal and the foot rests automatically assumes its own position. As soon as the lever I is released, the back and the chair body are simultaneously locked in their tilted adjustments.

The stem 0 which extends down within the hollow chair supporting spindle B has a screw threaded engagement at its lower end'with the nut M to which are connected the inner arms of four pedals, denoted by O, O, O and 0 extending radially away from the nut M at angles with each other of about ninety degrees and'pivotally secured to. the pedestal A, preferably by an annular ringNsuspended.

from the center of the pedestal. When any one of these pedals O, Q, &c., are pressed, upon by the foot of the operator, it will lift:

the stem 0 and'with it the stops 0 out of engagement with the hub D of the chair supporting yoke, so that the chair may be swung horizontally without moving the threaded spindle B and hence Without raising and 10W: ering the chair as a Whole. When, however,

it is desired to lower. the chair as a whole, it: maybe screwed up or down by turning it while locked to the spindle B, the stem 0 in. the mean time traveling up and down within the nut M.

The swinging back H is provided with a head rest, consisting of a. pad K hereshown in the shape of a cylinder and supported in a pair of swinging arms 70, the latter being.

pivoted to a vertical adjustable rack bar is secured to the back section H. A toothed dog is pivotally secured to one of the arms K or to the stem from which the arms is. diverge and extends down into position to engage an abutment k on an arm is, projecting rearwardly from the rack bar is. A- spring k tends to hold the toothed-dog k in contact with the abutment k to hold the pad K at any desired angle with respect to the back and a spring actuated dog k is located in position to hold the rack bark. at any'desi'red height with respect to'the back-section itself.

The mechanism by which the back section is swung relatively to the seat section is such that the back may be tilted to a position forward of the vertical and there locked to accommodate occupants who are unusually round shouldered or whose heads are, from any cause, pitched forward from the back of their shoulders. This feature is one of great importance, particularly in the use of the chair as'a barbers chair, as it permits the barber to come into close quarters with the head of the occupant at the back of the chair and enables him to do his work better and more expeditiously.

What I claim is- 1. The combination with the rearwardly tilting chair bodyandits support, of a. tilting back sectionpivoted to the chair body looking and releasing devices for independently adjusting the back section relative to the body portion and independently adjusting the body portion relative to its support and a single operating device for controlling said locking and releasing devices, substantially as set forth.

2. In combination, a chair body support, 'a rearwardly tilting chair body, a spring actuated locking dog mounted on the body support in position to lock the chair body in its severaltilted adjustments, a tilting back sec-.

tion pivoted to the chair. body, a spring dog on the chair bodyin position to lock the back section inits severaltilted adjustments, and an operating lever mounted on the chair body for simultaneously releasing both the above named locking dogs, whereby the chair body may beadjusted relatively to its support and the back section adjusted relatively to the chair body,substantially as set forth.

3. The, combination-with the tilting chair body and itssupport, of a spring. actuated dog mountedon saidsupport in position to engage recesses on the body of the chair, a

' vibrating lever mounted by a ball and socket pivoted in substantial alignment with the axis on which the chair tilts, an operating lever attached to the chair frame Within convenient reach of the operator and a connection between said operating lever and said vibratinglever for operating the spring actuated dog, substantially asset forth.

4. In combination, a foot rest frame, a suitable support therefor, a foot rest consisting of a single piece pivoted to swing in the foot rest frame, the said foot restbeing provided with a flattened side and with a roundcdside and being so hinged in the foot rest frame that when the chair is in its upright position the foot rest'will be drawn under the infiuence of gravity to present its flat side toward the occupant, and when the chair is tilted backwardly the said foot rest will turn under theinfluence'of gravity to present itsrounded side uppermost for the reception of the leg of the occupant, substantially as set forth.

[O uprising part of the body portion which normally engages the sector bar for locking the back section in its tilted adjustments, and an operating lever upon the body portion in position to engage the spring dog for releasing it from the sector bar, substantially as set forth. :5

FREDERICK 0. PRICE. Witnesses:

FREDK. HAYNES, IRENE B. DECKER.

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