US101472A - Improved folding convertible chair - Google Patents

Description

iinied Startet @anni @Mina WILLIAM B. KIMBALL, OF PE'IERBOROUGH, 'NEW HAMPSHIRE.

Letters Patent No. 101,472, lated April 5, 1870.

IMPROVED FOLDING CONVERTIBLE CHAIR.

The Schedule referred to in these Letters Patent and making part of the lama To all whom 'it may conce/m The object of this invention is to construct a-chair which may be folded np into a small span, and be converted from an ordinary rigid or stationary-seated chair to a rocking-chair, and vice versa.

It consists in the construction and arrangement of parts, as hereinafter more fully described.

In the accompanying drawing- Figure 1 represents a side elevation of the chair. Figure 2 is a view of the under side of the seat looking up from the line a: a: of fig. 1I

Figure 3 is a. sectional detail view of the pedestal showing the dovetail-groove by means of which the seat is connected with the pedestal, and' the manner in which the legs are hinged thereto.

Similar letters of reference indicate corresponding parts.

A'is the seat, which is removably connected with the pedestal B by means of a dovetail-groove, C, in the ends ofthe pedestal, as seen in fig. 3, and a dovetail-plate, D, connected with the seat by the strap E, which strap is pivoted to the bottom of the seat, so that the plate D and seat may he made to rock back and forth.

F and G are springs which are made to act upon the dovetail-plate D when the plate is unlocked, so that the seat may rock.

His akey which hangs down from and turns in the bot-tom with aslot which receives the edge of the plate D, as `seen in iig. 1, and acts,'\vhen thus turned, as a stop to the rocking motion ofthe seat.

When H is turned back the action of the springs are I brought to bear, and the chair is convert-ed into a rockin g-chair.

I represents the back of the chair hinged to the seat by the stationary plates J, so that it will fold down onto the seat, the 'pivotal point being at I The back acts as a lever when pressed in the di rection of the arrow, K being the fulcrum, and the 1nite1- ]'oint,seen in dot-ted lines, the point of resistance.'

L represents the legs, four (more or less,) in number, pivoted or jointed to the bottom of the pedestal 'in radial slotsfas seen in the drawing.

The top of each leg has a lip, O, projecting npward, as seen in tig. 3.

N is a sliding ring on the pedestal, which slips down over the lips O and holds the legs expanded, as seen in fig. 1. ,l

When this ring is raised the legs are released, and may be folded together so as to take np but little space.

The dovetail-plate D is readily slipped from the pedestal by turning ron-nd the little holding-finger P,

so that the seat and back may be packed separately` from the pedestal and legs if desired. y

Vlhe dovetail-plate U, forming the top of the pedestal, may be connected with the pedestal by a central screw, so as to make the seat adjustable as to height as well as position, without moving the legs, like the ordinary pivot-chair.

The advantages of this arrangement are many, and must be obvious to all.

- Having ths described my invention,

I claim as new and desire to secure by Letters Patent- 1. The springs F and G and the key H, in combination with a chair, by-rneans of which the rigid' seat is made a rocking seat, substantially as de scribed.

2. The ring N and lips O, by means of which the legs are held expanded, substantially as described.

' WM. B. KIMBALL.

Witnesses:

EzRA M. SMITH, ALBERT S. SCOTT.

Images