USRE11906E - Chair - Google Patents

Description

No. ll, 906. 'Roiuued A' r. I6, I91". n. B. mumou.

CHAIR.

(Application filed Feb. 2, 1901.]

g Shuts-Shad No. ,906. Reissued Apr. I6, I91.

' N. B. HARMON.

CHAIR.

(Application filed Feb. 2, 1901.]

2 Sheets-Shoat 2.

UNITED STATES" PATE T OFFICE.

NATHANIEL B. HARMON, or BRooKLYiy,,-NEW YORKUASSIGNOR oF ONE- HALF'TO CLAUDE M. HART, OFI-BOSTON, MASSACHUSETTS.

CHAIR.

- srncxmca rion forming part or Beissued L tters-Pat nt 11,906; dated April 16, 901. Original No. 665,00 dated January 1,1901. lpplicition for ram and rtim z, 1901. semi Ho. 45,052.

To all whoht it may concern:

Be it known thallLNATHANIELB. HARMON,

' of New York, borougho'f Brooklyn, county of Kings, State of New York,-have invent-ed certain new and useful Improvements-in Chairs, of which thefollowing is a full,clear,and exact description,.reference being had to the drawings which accompany and form a part of the same.

' My invention is designed to securea chair perfectly and easily adjustableto various sizes of occupants and to various positions and at the same time to maintainits balance but I do not intend to confine myself to any form of chair.

In the accompanying drawings, Figure 1 shows .in perspective a chair embodying my invention. Fig. 2 isa central longitudinal section of Fig. 1. Fig. 3 corresponds to Fig. 2, with the side supports-ofmthe chair partly in section. Fig. 4 is a section upon the line 44 of Fig. 3. Fig. 5 is a section upon the line 55 of Fig. 3. Fig. 6 is a section upon theline 6 6 of Fig. 3. Fig. 7 shows an alternative form of adjusting and supporting mechanism for the-foot-rest'.

1 1 represent the feet of a chair, upon which are mounted the rockers 2 2', which may be maintained in normal position by springs 3 3.

- Upon the'rockers 2 2 is supported the frame or body of the chair proper, which comprises the sides 4 4, the back 5, and the interconnected portions, which I shall describe hereinafter. The sides 4 4are mounted upon supports or guides 6 6, which are journaled upon roller or ball bearings, (see dotted lines 7,) so

that the chair-frame can be moved forward and backward upon the rockers 2, motion being imparted by a wheel 8, conveniently mounted upon a shaft 9, which carries at either end a .pinion 10, which travels upon a rack 11, or by other suitable means. The object of this adj ustability of the chair-frame upon the rockers is to secure a proper balance of the chair when the adj ustment of. the other Darts disturbs it. r

In order to lock the ch-ai r-body firmly in any desired position upon the rockers 2,1 provide a rod 22,-which extends from the upper face of the side support or guide 6 into a slot in the rocker 2. The upper'end of rod 22isattached to a rod 19', which is so attached to a cam-headed lever 20 that when-the latter is depressed the ,rod 19 is pushed down and its head 24, which is in the slot/23, ispressed away from the upper sideof'slot 23. This action releases the support 6 from engagement the opposite motionof lever 20 draws the head 24 tightly against the upper side of slot/23, thus locking parts 6 and 2 tightly together. It is preferred, although not essential, to have a corresponding locking arrangement on the other s'ide'of the chair and to have them'con nected by rod 19, so as ,to be operated to geth'er. I 7

At the front of the chair I provide av footre'st 25, which may be extended,.as shown in' Figs. -1 and 2 and in dotted lines in Fig. 3, or folded or pushed back under the body of the chair, as shown in the full lines, Fig. 3. This foot-rest 25 has at each sideof its rear end a a t with rocker 2that is, unlocks them -and 1 short flat rod 26, arranged at an angle to the length of the footr'rest. 'Ihese rods 2 6Yfit-in circular sockets 27, in which they move freely.

when the foot rest 25 is raised to any required angleas, for example, that show u" in the dotted lines of Fig. -3-the'rod-27 may slide out,

thereby permitting the foot-rest to bepushed' adjusted at a desired angle, 1 provide at one side of the chair a lever 29; Fig. 4, fast upon a rod 30, which is rotatably mounted in the sides 6 6 ofthe chair, preferably near its front.

Near each end this rod carries a pawl 31. The rod 30 is under the stress of a spring or springs 32, fastened to the side bars 6 6, which tend to rotate it, and with it the pawls 31, into the A position shown in Figs. 3 and 4-that is,- with too the pawls pointing toward the back of the chair. r

The foot-rest. 25 "is provided near its rear end with toothed racks or segments arranged to be in position for engagement by the pawls 31 when the foot-rest is drawn out, as shown in Figs.'1 and 2. When it isso drawn out, lever 29, Fig. 4, is rotated until the pawls 31 engage with the teeth ofsegment 33, thus holding the foot-rest at any desired angle. v

. If the foot-rest be raised to, say, the height shown in dotted lipes in Fig. 3, pawls 31 are released from the rack-bar 33 and the springs 32 will rotate rod 30, so as to throw back pawls 31 to theposition shown in Figs. 3 and 4, out of theline of movement of foot-rest 25 when it is folded away, thus permitting the rods 26 to be withdrawn from the sockets 27, so that the footrest 25 may .be folded back under the chair-body. In Fig. 7 I have shown-an alternative form 1 of adjusting and holding device for the foot? rest. In this case the -rods 26, which are round, are mounted upona spring-catch 34, which is retracted by a finger 35 upon the rod or lever 36. As here shown, the rack or segment 33? is convex instead of concave, as 1 before, and the pawl is curved to contact:

properly with it. The operation of this modil fiedformwill, I believe, be readily under-: stood. Q I

I provide a hook or latch 37, Fig. 3, upon the rear half of one or'both of the rockers 2 i and a series of catches or notches 38 on the base 1 to secure the chair in position, if de- 1' sired, when it is rocked back. A flat curved spring 39 upon the rocker will serve to keep 5 hook 37 in either position and prevent it from i swinging. a I

For the sake of convenienceand beauty I? arrange as many as possible of the devices? which I have described underthe body of the chair and inside of the rockers.

From the foregoing it will be understood,

that there are several adjustments possible in the chair provided for by my invention. First. The adjustmentof the foot-rest 25. This is accomplished bypulling foot-rest 25 from its folded position beneath the body of j the chair, Fig. 3, elevating itsfront end unti-lI the rods 26 will slide up slots 28 to sachets;

27, then lowering the front end to the desired position and at the same time rotating pawls;

31 (by means of lever 29 and rod 30) until they 1 engage with the rack 33, or this may be done by the alternative'devices shown in Fig. 7. f Second. The adjustment of the main body, of the chair longitudinally upon therockers' 2. This is chiefly necessary to restore the proper balance of the chair-body after adjust-t ing the foot-rest or for other reasons. It is accomplished by depressing lever 20, so as to unlock guides 6 from rockers 2, (by depressing the headed rod 22 in slot 23 through the depressing the same, substantially rotation of cam 21.) Then the wheel 8 is rotated, causing pinions ,10,v which carry the rockers 2 until the required relatiye positions of the two are reached. Then lever 20is thrown back again to relock the parts.

Third. If it is desired to rock the chairbody back an "hold'it there, this may be'done by booking t e-hook 'or latch;37 into one of the notches'38 r The drawings show an adjustable chairback 5 of peculiar arrangement orconstruc tion. While I do not make any claim to this improvement here, I do not abandon it, but make it the subject of a separate application for Letters Patent;

It will be seen that the chair-framewhich,

I show is entirely bare of upholstery and is typical or conventional in form. These are of course matters of no consequence, this simple form invention.

being sdoptedmo show clearly my It will occur to any one that the devices and arrangements which I will'show and describe may be varied widely without going beyond the scope of my invention and that many of them may be applied to chairs other than rocking-chairs.

What Iclaim is -1. Ina rocking-chair, he combination of supports for the chair-body, rockers upon which said supports are movably mounted, means for shifting said supports longitudinally, and means for locking said supports to said rockers, substantially asv and for the purposes described. 7

2. In a rocking-chair, the combination fof rockers, supports movably mounted upon said rockers, bearings between said rockers and said supports, means at theside of the chair for shifting said supports longitudinally upon said rockers, and means at the rear of said chair for locking together said supports and said rockers, substantially as poses described.

3. In an adj us-table chair, the combination of asupport-iag-frame, a chair-body longitudi- Longitudinal direction in a slot in said supporting-frame, a head upon said rod adapted to contact with the upper face of said slot, and a cam-headedlever operatively connected with the outer end of said rod for raising and as and for the purposes described.'

and for the purnally adjustable thereon, arod carried by said 1 chair-body and adaptedto slide freely in a 4. Ina chair, the combination of a chair body, a foot rest adapted to be folded or slid under said body, hinges, capable of being disconnected between said foot-rest and said chair-body, one or more-racksmouuted on the rear end of said foot-rest, pawls rotatably mounted upon said chair-body for engaging with saidracks, and means for withdrawing said pawls when disengaged from said racks out of the line of movement of said foot-rest, substantially as and for the purposes: described.

5. In'a chair, the combination of a chairchair-body, to travel over racks 11 upon the body provided at its forward end with sockets forward end, a lever 01' handle for rotating] said rod, pawls mounted upon said rod near 4 provided with entei'ing-slots extending ob liquely downward, a foot-rest adapted to be folded under the chair-body, laterally-extending fiat rods upon the rear of said foot-rest for engaging with said sockets, and means, substantially as described, for securingsaid foot-rest at any desired angle to said chairbody, substantially as and for the purposes described.

6. In atchair, the combination of a chairbody a rod extending transversely under its each end and a foot-rest hinged to said chairbody and having at its rearyend racks in the line of movement of said pafwls, and adapted to be engaged, thereby, substantially as and for the purposes described.

7. In a rocking-chair, the combination of a chair-body, a foot-rest adapted to be folded or slid under said body, and independent means for adjusting the balance of the chairbody upon the extension and folding of the foot-rest, substantially as and for the purposesdescribed,

NATHANIEL B. HARMON.

Witnesses;

M. LAWSON DYER, DRURY W. COOPER.

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