US67378A

US67378A - Improved folding chair

Info

Publication number: US67378A
Authority: US
Publication date: 1867-07-30
Anticipated expiration: 1884-07-30

Description

@einen istria 'atmt @ffice nvirnovnn FOLDING CHAIR.

@1hr djrbnlr nfrrnh in iu lgrsr lrttus hnelt mit mating anni nf its sulla.

TO ALL WIIOM IT MAY CONCERN:

Be it known that I, GRHGOR TRINKS, of `New York, Eighty-Second street, near Fourth avenue, in the county and State of New York, have invented a new amlimprovcd Folding Chair and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable tliose skilled in the art to malte and -use the same, reference being had to the accompanying drawing, forming `part of this specification, iu which drawing- ,Figure 1 represents a vertical section of one of my chairs when unfolded. VFigure Z is a similar section of the saine when folded. `Similar letters indicate corresponding parts.

This invention relates to a folding chair, which is provided with an adjustable sent, and with adjustable arm-pieces. The adjustment of the scat is effected by notched or scalloped bars, which catch over cross-bars secured in thc side pieces of the chair, or b y a series of holes in the under surface of the seat, and one or more pins projecting from saidcross-bar in such amanncr that by adjusting the seat in relation to the cross-bar, the height of the seat can be readily adjusted as` may be desired. The arm-pieces are composed of bands or strips of cloth or other textile material, which arefastened at one end -to the side pieces of the back, and at the opposite end to an adjustable slide, in such a manner that they can be lcngthened or shortened to suit the position of the scat and the convenience of the person occupying the chair.

A represents the side` pieces ofmy chair, cach of which is composed of two parts, a b, which are hinged together by means of the cross-bar c, so that they can be folded or unfolded as circumstances will require. The

parts 'a of the side pieces form the hind legs and the front supports of the arm-pieces, and the parts b, the front legs and the side pieces of the back, and said side pieces are connected by cross-barsA el ef, which run parallel to the main cross-bar c. All these cross-bars are secured in the side piecesvinsuch a manner that they can be readily remoyed when it is desired to taire the chair apart for the purpose of packing the same up in a small compass. The cross-bars ef are on a level with each other, one lbeing secured in the parts b, and the other in the parts a, of the s ide .pi-cees A, and the cross-bar 'e forms the fulcrum von whiclrthe seat 'B turns. To thc under surface of the scat are secured two notched or scalloped bars, g, and, as the scat is turnedrdown, either paifof notches in these bars can be made to catch over the cross-barf. By means of lthose notched bars, the

relative position of thc part a b of the side pieces toward each other, and, consequently, the height of the seat' above the door, are determined, and the chair can be readily adjusted to-suit the stature or` convenience of the person intending to occupy it.

Instead of attaching scalloped bars to the bottom surface of the'se'at, said seat maybe provided with two series of holes, which are made to catch over two pins or studs projecting from the'cross-barf. This arrangement I should consider aA mechanical equivalent of thevscalloped bars shown in the drawing.

The cross-bard forms the connection between the top ends of the parts b of the side pieces, and from cach of said top ends extends a band or piece of webbing, h, through a loop, i, secured to the corresponding part a, and to a slidewq', which moves back and forth in a slotted guide-way, 7c, in lsaid part'. A set-screw, Z, serves'to fasten `the slide inthe desired position. The webbing L takes the place of the arm-pieces, and, by adjusting the slides j, said arm-pieces can be adjusted to suit the position of the chair or the convenience of the person occupyingthe saine. By these means a chair is obtained which is lvery' convenient in its construction, which can be easily folded and unfolded, and which can be adjusted, With the greatest convenience, to sui-t the person vintending to occupy the chair.

What I claim as new, and desire to secure by Letters Patent, is

1. The scalloped bars g or their equivalents, in combination with the seatB, cross-bars f, and side pieces A of a folding chair, constructed and operating substantially as and for the purpose described 2. The adjustable slides j, in combination with the flexible arm-pieces 71. of a folding chair, constructed and operating substantially as and. for the purpose set forth.

GREGOR TRINKS.

Witnesses W. HAUFF, AUGUST BRAUN.