US430952A

US430952A - Folding chair

Info

Publication number: US430952A
Authority: US
Publication date: 1890-06-24
Anticipated expiration: 1907-06-24

Description

(No Model.)

H. HILL.

FOLDING CHAIR.

No. 430,952. Patented June 24, 1890.

fnranfor rests.

UNITED STATES PATENT OFFICE.

HUGO HILL, OF DETROIT, MICHIGAN.

FOLDING CHAIR.

SPECIFICATION forming part of Letters Patent No. 430,952, dated June 24, 1890.

Application filed November 13, 1889. Serial No. 380,166. (No model.)

To all whom it may concern.-

Be it known that I, HUGO HILL, of Detroit, in the county of WVayne and State of Michigan, have invented a new and useful Improvement in Folding Chairs, of which the following is a specification. My invention consists in an improvement 1n folding chairs hereinafter fully described and claimed.

Figure 1- is a vertical central section S1110?- ing the chair open and indicating in dotted lines the position of the various parts when the chair is folded. Fig. 2 is a vertical longitudinal section through one of the arm- Fig. 3 is a side elevation of one of the hinges which I prefer to use. Fig. 4 is afront elevation of the same. Fig. 5 is a section on line at a, Fig. 1.

D represents a standard F whose base is adapted to rest on and be secured to a floor by means of bolts or screws.

A represents the seat of the chair, hinged at its rear corners to the standard D.

H represents an arm-rest hinged at its rear end to the standard D by a hinge I, preferably made as hereinafter described.

B represents a brace, whose lower end is hinged at the point C to a projection on the standard D. The upper end of the brace B is pivoted at the point G, Figs. 1 and 2, to a perforated block L, adapted to slide on an iron rod M, which lies in a recess K in the under part of arm-rest H, the ends of said rods M being secured to the ar1n-rest at 7c. The brace B is slotted on its inner surface upwardly from the point where it intersects the seat when the chair is open, and this slot is covered with a slotted plate E, Figs. 1 and 5. Each. side of seat A is preferably gained out sufficiently to receive or partly receive the braces B, and is provided with a pin J, Figs. 1 and 5, firmly set in the edge of seat A, projecting through the slot in plate E and provided with a flattened head F, Fig. 5, lyingin the slot in brace B, the pin J lying against the lower end of the slot in plate E,-when the chair is open.

Figs. 3 and 4 represent a form of hinge which I prefer, though of course any suitable form may be used. In this form of hinge the leaf a isprovided at its end with a cylindrical jaw 0, open at one side, while-the other leaf f is provided at its end with a cylinderb, adapted to fit within the jaw c, and the parts are held together by two clamping-washers e e and a bolt d, which passes through cylinder 1) and holds the washers against the end of said cylinder and of the jaw 0. Each leaf of the hinge is of course provided with suitable holes or screws, as shown in Figs. 3 and 4:. It will of course be understood that the arrangement of arm-rest II and brace B is the same on each side of the chair.

The operation of my inventionis as follows: IVhen the chair is open, as indicated in full lines in Fig. 1, the pins J in the seat A strike against the bottoms of the slots in in the plates E, and by the braces, together with the hinges which fasten the seat to the standard, the seat is supported. At the same time the sliding blocks L strike against the outer ends of the slots K in arm-rest H and hold the said arm-rests in a fixed position. Now if the seat A be raised the sliding action of pins J in the slots in plates E causes the braces 13 to turn on their hinges C, and this throws the upper ends of braces B toward the standard, thus sliding the blocks L along the rods M, and simultaneously foldingthe seat, the arm-rests, and the braces against the standard. (Indicated in dotted lines in Fig. 1.)

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

1. In combination with an upright standard, a seat hinged at its rear end to said standard, two arm-rests hinged to the sides of said standard above the seat, and two braces hinged at their lower ends to said standard below the seat, having a sliding connection at their upper ends with the armrests to swing to and from the standards on the hinge as a center, and having an intermediate pin-and-slot connection with opposite sides of the seat, substantially as shown and described.

2. In connection, with the upright standard D, the seat A, hinged thereto, the slotted arm-rests H H, each hinged to the standard, the slotted braces B B, hinged at their lower ends to the standard, the pins J, connecting the seat with the braces, and the blocks L, pivoted to braces BB and mounted on rods M, substantially as shown and described.

HUGO HILL.

Witnesses:

EUGENE H. HILL, HENRY B. Lornnor.