US376256A - Chair - Google Patents

Description

2 Sheets-Sheet 1.

(No Model.)

D. PARKS.

CHAIR.

Patented Jan. 10, 1888.

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m Model 2.Sheets sheet 2.

D. PARKS.

CHAIR.

Patented Jan. 10, 1888.

N PETERS. FholwLilhngrapl-er, 'wmin wn. n. c.

UNITED STATE s PATENT ime.

DANA PARKS, OF REVERE, MASSACHUSETTS, ASSIGNOR TO'THE KENSING- T013 CHAIR COMPANY, OF PORTLAND, MAINE.

CHAIR.

SPECIFICATION forming part of Letters Patent No. 376,256, dated January 10, 1888. Application filed April 4, 1887. Serial No. 2 23,616. (No model.)

To aZZ' whom it may concern:

Be it known that I, DANA PARKS, a citizen of the United States, residing at Revere, in

the county of Sutfolk and State of"M'-assaehusetts, have invented certain new and useful Improvements in Steamer, Lawn, and Invalid Chairs; and Ido hereby declare that the same are fully described in the following specification and illustratedin the accompanying draw- IO lugs.

This invention relates to improvements in steamer, lawn, and invalid chairs; and it is carried out as follows, reference being had to the accompanying drawings, wherein Figure 1 represents a perspective view of theimproved chair in a closed position. Fig. 2 represents a perspective view of the chair as open for a sitting position of the occupant. Fig. 3 represents a perspective view of the chair with the back seat and leg-rest arranged for a reclining position of the occupant. Fig.

4 represents a detail view of the locking device t'or securing the lower ends of the forward suspension-links to the chair-seat. Fig.

15 5 representsadetail view ofthe pin and notched rack for securing the back of the chair in any desired position to the arnrrests. Fig. 6 represents a detail view of the guide for the legrest, and Fig.7 represents a detail view ofthc 0 hinge by means of which the upper ends of the front and rear legs are hinged together.

Similar letters refer to similar parts wherever they occur on the different parts of the,

drawings.

a a represent the rear legs, one on each' side of the chair, which are hinged at or near their upper ends to the respective front legs, I) b, by means of stop-hinges c c, the plates of which have upwardly-projecting stop-exten- 0 sions do, that are brought in contact with each other when the legs a b are swung out to their full extent, as shown in Figs. 2 and 3, and thereby toprevent their spreading farther apart when the chair is expanded ready for v 5 use. 7

a and a are stays or braces uniting the rear legs, a a, so as to hold them at a proper distance apart.

bt and b are similar stays or braces between the front legs, I) b, as shown.

d d are the armrests, which are hinged at or near their front ends, by means of hinges e e, to the upper ends of the rear legs, a a.

d is a stay or brace by which the rear ends of the arm-rests dd are secured together, at. a proper distance apart, as shown.

F is the back of the chair, and G is its seat,

the two being hinged together by means of hinges h 71, as shown.

I is the legrest, made adjustable and adapted to slide in grooves on the under side of the seat G. On the sides of the back F, about midway between its upper and lower ends, are secured the outwardlyprojecting pins f f, which are guided in the grooves (2 d on the insides of the arm-rests d d, as shown.

- For the purpose of securing the back F to the arm-rests d d at any desired inclinatioml secure to the inside of the armrests, d d the metal plates D D, provided with a number of locking-notches,D D,open at their lower ends where they communicate with the grooves d d" on the arm-rests (Z (Z, by which arrangement the back F can be adjusted to any desired in clination and secured to the arm-rests, after beingso adj ustcd, by locating the side projeetions, ff, in any of the notches D D on the plates D D;

When the chair is in use and the legs a a b b expanded, as shown in Figs. 2 and 3, to prevent the legs from spreading and to relieve undue strain on the stop-hinges c c, I hinge to'the brace a that unites the rear legs, a a, the bent, curved, or otherwise shaped link k, the forward end of which is provided with a hook, k, adapted to be connected to brace bon the forward legs, I) b, as shown in said Figs. 2 and 3. Such hooked link, when the chairis not in use, is to be swung out of the way beneath the seat G, as shown in Fig. 1. When the legs a a b b are expanded, the free end ofthe hooked link 7c 76 will swing automatically into position,so that its hook is will catch on the brace I) when the legs a b are expanded to the limit of their open positions, as shown in Figs. 2 and 3, and thus obviate the necessity of manipulating a locking device for the legs a a b b.

To the inside of the upper end of eachrear leg, 64, is secured the suspension-plates A A, having stationary fulcral and m, to which are hinged, respectively, the seat-supporting links L and M, as shown. The lower end of the rear link, L, is hinged at Z to the side of the seat G.

To permit the chair to be folded together, as shown in Fig. 1, it is essential that thelower end of the front link, M, should not be rigidly hinged to the sides of the seat G, but attached in such a manner as to permit the seat to be swung upward on the fulera Z 1' when not desired for use, and for this purpose I pivot to the outside of the seat G a slotted block, N, through which the link M passes, as shown.

m is a side lip at the lower end-of link M, that comes in contact with the under side of the slotted pivoted block N when the seat G is swung down in its operative position, and such lip m on link M serves as a stop or rest to prevent the forward end of seat G from being tipped downward when the chair is being occupied.

To prevent the seat from tipping backward when occupied, I make on each link M, near its lower end, a cut-away portion, m, having in its upper enda stop-projection, m, against which the upper edge of the slotted block N is caused to rest while the chair is in use.

When not required for use, the chair may be folded together, as shown in Fig. 1, by raising the rear ends of the armrests d d sufficiently to disengage the projectionsff 011 the back F from the notched plates D D, after which the back F can be swung forward on hinges h h, the projectionsff during such motion being guided in the grooves d d on the arm-rests d d. The lower ends of links M M are then to be unlocked from the slotted and pivoted blocks N N, after which the scat G is swung upward to meet the back F, the armrests'll (I being swung on the hinges e e to lie on the back of rear legs, a a, and the frontlegs b I) being swung on hinges c 0 against the under side of legs a a, all substantially as shown in Fig. 1. \Vhen so folded together, the chair is made flat, or nearly so, and occupies but a very small space.

The leg-rest I is located below the seat G, the latter being provided with side grooves, g g, in which project the lugs i i, secured to the rear end of the leg-rest I. On the under side of the forward endof seatG is secured a trans 5o verse bar, serving to support the leg-rest I,

either when pushed to the rear or drawn out more or less when in use.

By having arm-rests hinged to legs or base, the seat hung on two fulcra on each side, and

the back hinged in its lower end to the rear of the seat, and havingits upper portion adj usta bly secured to the arm rests, the chair is so nicely poised as to level and adjust itself automatically to the various positions of the occupant, and yields readily to such positions.

The chair is admirably adapted for deck use on steamers or sailing vessels, and will level and adj ustitself automatically, when occupied, to changes in the deck-level, so as to retain a permanent, or nearly so, position of the occupant,the two fulcra on which it is hung serving to prevent it from being too sensitive and rocking too far or too easily by the motion of the vessel.

The base may be modified, if so desired, by having three legs on each side instead of two, as shown in the drawings; but I prefer to use the construct-ion as shown and described.

What I wish to secure by Letters Patent, and claim, is

1. The combination, with the folding base, comprising the rear and front legs, a b, of the hinges 0, having their pivoted plates secured, respectively, to the inner sides ofthe legs, and each plate havingastop-cxtension, 0, project ing upward above the pivot of the plates to abut each other when the legs arespread apart, substantially as described.

2. The combination, in a folding chair, of the base comprising the rear and front legs, a b, hinged together at their upper ends and provided with the fulcra Zm, the seat G, the rear and front links, L and M, hung on said fulcra,the rear links being pivoted to the seat, and the front links having stops m, and the slotted blocks N, )ivoted to the seat, and in which the front links can slide and their stops engage and disengage the blocks, substantially as described.

In testimony whereof Ihaveaffixed my signature in presence of two witnesses.

DANA PARKS.

Witnesses:

ALBAN ANDREN, HENRY CHADBOURN.

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