US413140A - Half to ellis r - Google Patents

Description

(N0 Model.) 2 Sheets-Sheet 1.

G. F. HALL.

ROGKING CHAIR.

No. 413,140. Patented Oct. 15, 1889.

(No Model.)

2 Sheets-Sheet 2. G. P. HALL.

ROCKING CHAIR.

No 413,140. Patented Oct. 15, 1889.

m-mmn hu, Washingiun. n. c.

UNITED STATES PATENT OFFICE.

GEORGE FRANKLIN HALL, OF NEWARK, NEW JERSEY, ASSIGNOR OF ONE- HALF TO ELLIS R. OARHUFF, OF SAME PLACE.

ROCKING-CHAIR.

SPECIFICATION forming part of Letters Patent No. 413,140, dated October 15, 1889.

Application filed May 25, 1889. Sem'al No. 312,144:- (No model.)

To all whom it may concern.-

Be it known that I, GEORGE FRANKLIN HALL, a citizen of the United States, residing in Newark, county of Essex, and State of New Jersey, have invented certain new and useful Improvements in Rocking-Chairs, of which the following is a specification.

This invention is an improvement on that patented to me May 29, 1888, No. 383,808, and relates principally to a means for adapting the hanger arms or links 0 shown therein for application to chairs of different widths.

The invention consists in the construction shown and described herein for a rocking chair having a stationary base.

In the annexed drawings, Figure 1 is a side elevation of the entire chair; Fig. 2, a front view of the chair-seat, the base, and connections between the same. Fig. 3 is a side view of one of the connecting-links with the sleeve provided with means for locking the chair in position; Fig. 4-, a view at right angles to that shown in Fig. 3 of the lower half of the link and the parts applied thereto. Fig. 5 is a side View of the entire locking device; and Fig. 6 is a view similar to Fig. 2 of one side of a chair, showing an alternative form of rocking device.

In Figs. 1, 2, and 6, a is the chair-seat; b, a downward]y-projecting frame secured to the lower edges of the same and provided with bearings I) and b 0, the stationary base, and d are frames projecting upwardly from the base 0 adjacent to the frame 27 and provided with bearings cl and d 6 are links having studs e and c at their ends projecting outwardly perpendicular to the same, the stud 6 being provided with sleeves f f fitted thereto. The studs 6 are fitted to the bearings d of the frames (1, and the sleeves ff are provided with hollow studs f which are fitted to the bearings b of the frames (2. One of the sleeves f is provided, additional to the stud f with an car It projecting from its inner end, and with an arm Z projecting from theend adjacent to the stud f 0% is a curved rod concentric with the forward bearing d of the frame d, and shown herein secured to the frame d and base 0 at its ends. The ear his provided with a hole h,

fitted loosely to the rod 1%, and is adapted,

when the stud c and consequently the link 6, is vibrated by the movement of the chair, to slide loosely upon such rod m.

p is a lever having two cars at its base, the ear 19 being pivoted near one of the upper edges of the chair-seat, and the ear 19 being connected to the arm Z by means of a link 0. Such device forms a toggle-connection between the lever 19, which is operated by the occupant of the chair, and the arm Z. It is entirely immaterial to my invention, however, what means is used to lock such arm Z in its operative position, so long as some connection is provided from the same to the chair-seat adapted to be moved by the operator.

The links 6 on each side of the chair are connected together by means of a rod '2, secured adj ustably in holes in the same by setscrews r. The sleeves f may be provided with set-screws, as shown herein, to secure them upon the studs 6 of the links 6; but the sleeve f, operating the locking device, is constructed to turn readily upon the stud 6 in order to perform its function properly.

The chair is operated, as in ordinary rocking-chairs, by a slight forward-and-backward motion of the occupant, th e ear h sliding freely upon the curved rod m. WVhen it is desired to stop the chair in any one position, the lever 13 is forced backward, as shown in dotted lines in Fig. 5, thereby throwing the arm Z of the sleeve f upward. This causes a similar movement of the car it, and, being eccentric to the rod m, bites or binds upon the same, thereby holding the lower end of the link in a fixed position upon the rod on and arresting the motion of the chair.

In the construction shown in Fig. 6 the stud 6 only upon the link 6 is bent at right angles to its body, and the rod 0" is passed entirely through the lower end of such link and provided with the sleeve f, similar to that shown in Fig. 2. It will be seen that in this construction the outer end of the rod 1' operates the same as the stud c and for the purposes of my invention it may be considered as the stud e although integral with the rod 0".

WVith some forms of chairs it maybe found desirable to use the latter construction in stead of that described above, and shown in the other figures of the drawings. It is obvious that the two frames d might be formed integral, and I do not therefore limit myself to that particular construction, as the frames serve merely to support the bearings cZ and 0Z and their exact form is wholly immaterial to my invention.

The advantage of my present construction is thatthe total length of the stud 6 upon the link 6, provided with the sleeve having hollow stud-f may be varied to suit chairs of different widths, and it is therefore necessary to use only one pattern in casting the links, even where applied to chairs of different Widths.

My invention is especially adapted for application to chairs designed for other uses than as rocking-chairs; and the locking device, in connection with the rocking feature, aifords a very desirable construct-ion for barbers chairs, or operating-chairs for surgeons or dentists. I do not limit myself, however, to the application of the device to any particular style of rocking or tilting chairs,'as it would be found equally desirable for other styles of chairs than those referred to specih'cally herein.

It is evident that in certain classes of chairs the frames cZ may be fastened directly to the floor instead of to a base 0, as shown herein, and I do not therefore limit myself to a chair provided with such base.

In applying my locking device to rocking or tilting chairs it is immaterial whether sleeves f be applied to the other links besides the one having the locking device and that such device would operate as readily with the lianger-ar1ns shown in my patent, No. 383,808, as those shown herein. It is also evident that in order to secure the adjustable feature of the links provided with studs having sleeves f thereon such adjustable devices could be used on one side of the chair only, if desired; butI prefer to apply the adj ustable links upon both sides of the chairin order to give the latter a symmetrical appearance. In some cases I find it desirable to pivot the end of the lever 13 directly to the chair-seat, and theupper end of the link '0 to the lever above such pivot. I do not, therefore, limit myself to the exact construction of the lever shown herein.

Having thus set forth my invention, whatI claim herein isl. The combination, with a base and supporting-frame cZ, provided with the bearings d and d of a chair-seat provided with the bearings b and b suspended below the level of the bearings d and d the links 6,6011-v necting the bearings and provided with the studs 6 and c and one or more sleeves f, applied to one or more of the studs (2 and provided with studs J, as and for the purpose set forth.

2. The combination, with a base and'supporting-frame (1, provided with the bearings d and (Z of a chair-seat provided with the bearings b and b suspended below the level of the bearings cl and d the links a, connecting the bearings and provided with the studs 6 and 6 the rods 0", connecting the links in pairs, and one or more sleeves f, applied to the studs e and provided with studs f as and for the purpose set forth.

3. The combination, with a base-frame c and supporting-frame cZ, provided with the bearings d and 0Z of a chair-seat provided with the bearings 19' and b suspended below the level of the bearings d and (Z the links 6, connecting the bearings and provided with the studs 6 and 6 a sleeve f, applied to one of the studs 2 and provided with perforated ear 7t and arm Z, as described, a stationary curved rod m, secured at its ends to the frame (Z and base 0, concentric with the bearing CF, and passing through the aperture in the ear h, and means for turning the arm Z, as and for the purpose set forth.

4. The combination, with a base-frame c and supportingframe (Z, provided with the bearings cZ' and 0Z of a chair-scat provided with the bearings b and b suspended below the level of the bearings d. and (Z the links 6, connecting the bearings and provided with the studs 6' and 6 a sleeve f, applied to one of the studs 6 and provided with perforated ear h and arm Z, as described, a stationary curved rod on, secured at its ends to the frame cZ and base 0, concentric with the bearing d and passing through the aperture in the ear h, the lever 19, pivoted to the chair-seat, and a link connecting the lever 19 with the arm Z, the whole arranged and operated as and for the purpose set forth.

5. The combination, with the base-frame c and supporting-frame (Z, provided with the bearings-CZ and (Z of a chairseat provided with the bearings 12 and b suspended below the level of the bearings d and (Z the links 6, connecting the bearings and provided with the studs 6 and 6 a sleeve f, mounted upon the stud c and provided with perforated ear h and arm Z, as described, a stationary curved rod 0%, secured at its ends to the frame d and base e, concentric with the path of the stud when the chair is in motion, and means for raising and depressing the arm Z, as and for the purpose set forth.

Intestimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

GEORGE FRANKLIN HALL.

Witnesses ALFRED GARTNER, ADAM HERZINGER.

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