US 870260 A
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Description (OCR text may contain errors)
No. 070,200. PATENTED Nov. 5, 1907. w. H. THOMAS.
APPLIOATION nun MAB. 8. 1907.
2 SHEETS-SHEET 1.
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THE NORRIS PETERS co., \s/Asmzvcrmvv o. c.
UNITED STATES PATENT OFFICE.
WILLIAM H. THOMAS, OF SYRACUSE, NEW YORK, ASSIGNOR OF ONE-HALF TO GEORGE ARTHUR THOMAS, OF SYRACUSE, NEW YORK.
Specification of Letters Patent.
Patented Nov. 5, 1907.
. Application filed March 8, 1907- Serial No. 361,204-
To all whom 'it may concern:
Be it known that I, WILLIAM H. THOMAS, a citizen of the United States, and resident of Syracuse, in the county of Onondaga, in the State of New York, have invented new and useful Improvements in Folding Chairs, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.
This invention relates to the class offolding chairs in which the rear legs are pivotally connected to the front ends of the rockersand have the front legs connected to the rear end portions of the rockers and slidable lengthwise thereof. And the invention consists in improved means for more securely connecting the rear legs to the rockers as hereinafter described and claimed.
In the accompanying drawings, Figure 1 is a side view of my improved rocking-chair in its erect position; Fig. 2 shows the same in its folded position; Fig. 3 is a front view of the chair; and Fig. 4 is a sectional view on line 33in Fig. 3.
11- denote the rockers which are provided with longitudinal grooves 2 in their inner sides.
-3 represents the rear supporting legs which are curved correspondingly to the curvature of the rockers to allow them to lie parallel and compactly upon the tops of the rockers when the chair is folded as shown in Fig. 2 of the drawings. The front ends of the rear supporting legs 3- are pivotally connected to the front end portions of the rockers by means of metal straps or links 4. A transverse rail 5 is attached at its ends to the central portions of said legs to tie them together and at the same time serve to support the front supporting legs as hereinafter described.
To relieve the links 4 from excessive strain and to provide a more positive and secure support for the rear supporting legs 3 when the chair is erect and occupied 1 provide the tops of the front end portions of the rockers with rigid upwardly projecting hooks -22, which have their open ends presented toward the rear of the chair to receive the lower ends of the legs 3 which are thus stepped in the hooks, into which they are forced by the inclined links 4. The lower ends of said legs are convexed and the closed ends of the hooks -22 are concaved correspondingly.
-6 represents the front supporting-legs the lower slidably across the top of the tie-rail 5 and are thus supported thereon. The central portions of the front supporting legs have attached to them downwardly projecting lugs 24 which engage the front of the tie-rail 5 and serve as stops to the descending movement of the legs 6 when the chair is in its erect position. Directly over the legs -6- are rollers 8- pivoted to the inner sides of the rear supporting legs 3 and bearing on the tops of the front supporting legs 6 to guide said legs in their movements.
To the upper ends of the front supporting legs -6- is framed a transverse bar 9 which is cylindrical and carries upon it the front portion of the seat 10, which is connected to said bar by means of a bracket -1l rigidly attached to the underside of the seat, preferably at the center of its width, and formed with an annular bearing which embraces the cylindrical bar 9-. The rear end of the seat is attached to a transverse bar 12 which is pivoted at its ends to the upper ends of the rear supporting legs -3.
To the underside of the seat are rigidly attached depending lugs 13- which are disposed to engage the front of the cylindrical bar 9 directly opposite the attachment of the upper ends of the front supporting legs. Said lugs serve as additional stops to the movement of the front supporting legs and seat when the seat is subjected to the weight of a person occupying it. i
The upper ends of the rear supporting legs 3 are formed with upward extensions l4- which constitute the side rails of the back of-the chair.
15- represents the arms of the chair. Said arms are pivoted to the aforesaid side rails l4 and are supported at their front ends by means of props -16 which are hinged to the undersides of the arms as shown at 17 and are adapted to fold onto the undersides of the arms. The props 16 are pivotally mounted on the ends of the bar 9 which is formed with trunnions 18 passing through correspondingly shaped holes in the lower ends of the props 16 which are retained thereon by means of heads -19- attached to the protruding ends of the trunnions.
To allow the chair to befolded compactlyas shown in Fig. 2 of the drawings, the rear supporting legs 3 are curved correspondingly to the curvature of the rockers as hereinbefore stated, and in order to allow the seat 10 to fold simultaneously and closely onto the back of the chair and cause the front supporting legs to lie snugly upon the back of the seat, I form the upper end portions of the front supporting legs 6- straight as shown at 20-. The lower end portions of the said legs 1 curve or deflect downwardly at the center as shown at 21 to allow them to pass over the rollers 8 when the chair is folded as aforesaid.
What I claim as my invention is:
In a folding chair having the rear legs foldahle onto the tops of the rockers, the combination with said members, of hooks projecting; from the tops of the front end portions of the rockers and disposed with their Open ends toward the rear of the chair to receive the lower ends of the rear legs, and links pivotally connecting the said legs to the rockers and inclined with their upper ends toward the front of the chair, to force said legs into said hooks as set forth.
WILLIAM H. THOMAS.
J. J. LAAss, G. KAISER.