US1404449A - Folding chair - Google Patents

Description

F. LAHM.

FOLDING CHAIR.

APPLICATION msn APR. 14. 1921.

Patented Jan. 24, 1922.

PATENT OFFICE.

FERDINAND LAHM, 0F ST. LOUIS, MISSOURI.

FOLDING CHAIR.

Application iled April 14, 1921.

To all whom t may concer/n.'

Be it known that I, FERDINAND LAHM, a citizen of the United States, and a resident of St. Louis, State of Missouri, have invented certain new and useful Improvements in Folding Chairs, of which the following is a specification.

This invention relates to improvements in chairs, particularly of the porch rocker type, and has as its main object to provide a chair with an adjustment as to the angular inclination of its seat and back, a folding foot rest, and means to prevent overturning at the rear.

These several objects together with others which will become apparent as the description proceeds, are attalned by the novel construction, combination and arrangement of parts hereinafter described and shown in the accompanying drawings, forming a material part of this disclosure, and in which Figure 1 is a front view of a chair made in accordance with the invention.

Figure 2 is a side of the frame.

Figure 3 is a vertical sectional view showing the chair adjusted in a different position.

Figure 4 is a perspective view.

Refer-ring to the drawings in detail,.the numeral 10 designates a pair of front legs and 11 the corresponding'rear legs, which are extended to form supports for the chair back.

At the tops of the front legs are pivotally engaged cross rails 12, pivoted to the rear legs 11 and mounted on the upper edges of the rails are broad arm rests 14.

The lower ends of the front and back legs are also connected pivotally to the rockers 15 which are curved as usual, except at their rear extensions 16, these portions being straight as shown.

Seat supports 18 are pivotally engaged on the inner sides of the legs 10 and 11, these supports having curved front extensions to which is secured the outer seat element 19, other spaced elements 20 constituting the seat, being attached to the upper edges of the supports 18, similar strips 21, forming the back, being secured to the front edges of the rear leg extensions. Y

Formed in the seat supports 18 are elongated slots 22, having recesses 23, 24, 25, etc., extending upwardly, in which is engageable Specification of Letters Patent.

Patented Jan. 24, 192,2. Serial No. 461,198.

a rod 26, normally freely movable in the slots and carried at the ends of a pair of arms 27 pivoted on the inner sides of the rocker extensions 16.

Thus when the rod is in the rearmost rearms 31, having fixed between them at their I outer ends a strip 32 which serves as a foot rest when extended as shown in Figs. 1 and'2.

This foot rest is supported, vwhen eX- tended, by pairs of links 33 and 34, pivoted together and also at their ends to the arms and front legs 10 respectively and, as will be seen by inspecting Fig. 3, may be folded closely adjacent the front legs when their use is not required.

In the modification shown in Fig. 4, the general construction is the same except the seat elements and braces, the seat sides 18 being replaced by a pair of plates 4() having rigid end plates 41, forming an open rectangular frame.

Secured to the'inner sides of the plates 4() are longitudinal cleats 42 spaced to present slideways, 43, in which are movably contained slides 44 joined by a cross bar 45 to which are pivotally connected the ends of the arms 27, engaged at their lower ends as before described.

Fixed to extend upwardly from the rear edge of the bar 45 is a thin metallic plate 46, the same being engageable in any of a plurality of slots 47 in the lower edge of a narrow bar 48 eccentrically mounted on the sides of pivots 49 and 50 passing through the centers of the end plates 41, one of the pivots 50 extending outwardly permitting it to be grasped in the hand of an operator who is thus enabled to raise the bar from the plate 46 which can then be adjusted lengthwise of the seat.

From the foregoing description it will'be seen that the seat adjustments can be made prising vertical members, arm supports and with more variations than by the proceeding device and that the locking of the 'parts is quickly and surely attained.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

l. A chair of the class described com- Vsldeways, .a cross slide movable therein,

means for locking said slide adjustably in the frame, and brace arms pivoted to said rockers at one end and with said slide at their opposite endsi 3. A chair of .the class described com-Y pris/ing vertical corner members, arm supports and rockers pivotally engaged therewith, a seat frame carried by said corner members, a slide movable longitudinally in said frame, a lock plate on said slide, a bar pivoted eccentrically lengthwise of said frame, said bar containing a plurality of slots receptive of said lock plate,and means for actuating said bar to engage or release said plate.

In testimony whereof I have signed my name to this specification.

FERDINAND LAHM.

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