US2077770A - Chair - Google Patents

Description

April 20, 1937.

PROVISOR:

CHAI-R Filed Aug. 11-, 1936 A Prov-1:01

arr f UNITED STATES PATENT OFFICE CHAIR Abraham Provisor,

Winnipeg, Manitoba,

Canada Application August 11, 1936, Serial No. 95,412

2 Claims.

The object of the present invention is to provide a strong durable chair for railroad use which will withstand hard usage, wherein the parts can be quickly and easily assembled and which can be knocked down for shipping purposes.

A further object of the invention is to provide a bent wood construction for simplicity of design and a comfortable sitting posture.

A further object of the invention is to provide a chair having side arms integral with the back rest and with enlarged portions on the said side arms to provide an arm rest.

With the above important objects in View which will become more apparent as the description proceeds, the invention consists essentially in the arrangement and construction of parts hereinafter more particularly described, reference being had to the accompanying drawing in which,

Figure 1 is a perspective View taken at the rear and below the seat of a completed chair.

Figure 2 is a perspective front view of the arm chair seat.

Figure 3 is a perspective view showing the construction of the legs and associated parts.

Figure 4 is a vertical longitudinal section taken on the line 44, Figure 2.

Fig. 5 is an enlarged horizontal sectional view through the joint of the lower crossbars.

Fig. 6 is a vertical section taken at 6-6, Fig. 2.

In the drawing like characters of reference indicate corresponding parts in the several figures.

The present invention is an improvement over my former United States Patent No. 1,744,799, issued to me on January 28, 1930 and wherein 35 some of the present demountable features of the invention are shown.

The legs are constructed on a similar principle to the chair shown in the patent mentioned and consist of two front legs I and 2 and two back 40 legs 3 and 4. The legs I and 4 and those 2 .and 3 being joined together at the top by cross bars 5 and 6 with mortise and tenon joints and towards the bottom by cross bars 1 and 8 similarly joined. Slightly back from the center, the cross bars 6 and 8 are notched on the under side as at 9 and the bars 5 and 'l are notched on the upper side as at ID to nest within each other while the cross bar 8 passes between the bars 5 and 1.

The seat I l is formed from comparatively heavy wood and is of a semi-circular shape. Slats l2 extend upwardly from the semi-circular portion to a horizontal bail shaped wooden railing l3. The slats are also secured in both the seat and the railing by mortise and tenon joints while 55 bolts 14 pass through the sides of the railing down through the seat and fasten with a nut underneath to maintain the parts in position. A curved back rest i5 is placed and glued upon the rear part of the railing and screws I6 pass upward through the railing to positively retain the said back rest in position. The front portion of the railing forms arms for the chair and at such front ends are provided with horizontal side blocks I1 and H which are glued thereto and also fastened with screws I8. The seat is provided with four holes l9 and the bars 5, 6, 1 and 8 .are also provided with holes to permit long bolts 20 to pass therethrough while locking nuts 2! are screwed on the bottom and engage with the bars "I and 8 to fasten the legs rigidly to the seat. Four reenforcing curved bars 22 connect the bar I to the bar 8 on both sides by screws 22'. The bars 1 and 8 are fastened together by a bolt 23 which passes through both at the joint.

When shipping this chair the legs can be separated from the seat by removing the bolts 20.

By removing the bolt 23 and the reenforcing bars 22, one set of legs can be disconnected from the other set and rotated until they touch the other set in the same manner as my former patent above mentioned. By removing the bolts Hi the railing IS with the associated back rest and blocks I6 and I! can be lifted away from the slats I2 and the slats in turn can be removed.

From the above it will be apparent that the invention provides a complete knockdown chair construction which takes up a minimum of space in shipment. When it is assembled in the reverse manner it provides an extremely strong and rugged construction which is ideally suited for what is known as caboose chairs in railroad use. The construction of therails and back rest forms an extremely comfortable back for the seat while the chair itself will last indefinitely with extreme abuse.

What I claim as my invention is:

1. In a knock down chair construction, a flat seat member, a lower supporting framework for the seat member comprising corner legs oppositely connected by upper and lower sets of cross bars and each set of cross bars centrally and complementarily notched to interlock at right angles and occupy the same horizontal plane, removably secured re-enforcing bars diagonally connecting the lower cross bars, releasable fastening means passing through the seat and the upper and lower cross bars to secure said lower framework to said seat, an upper framework comprising a U-shaped horizontal railing elevated above the seat and spaced therefrom by vertical slats, the ends of said slats being received by both the seat and the said railing, releasable fastening means connecting the railing and the seat to secure the upper framework to the seat.

2. In a knock down chair construction, a flat seat member, a lower supporting framework for the seat member comprising corner legs oppositely connected by upper and lower sets of cross bars and each set of cross bars centrally and complementarily notched to interlock at right angles and occupy the same horizontal plane, removably secured re-enforcing bars diagonally connecting the lower cross bars, releasable fastening means passing through the seat and the upper and lower cross bars to secure said lower framework to said seat, an upper framework comprising a U-shaped horizontal railing elevated above the seat and spaced therefrom by vertical slats, the ends of said slats being received by both the seat and the said railing, releasable fastening means connecting the railing and the seat to secure the upper framework to the seat, side blocks fastened to the ends of the U-shaped railing, flush therewith, to provide wide arm rests, and a curved block fastened to and. extending upwardly from the curved portion of the U-shaped railing to provide a wide back rest.

ABRAHAM PROVISOR.

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