US521121A - Peter little - Google Patents

Description

(N0 Mddel.)

P. LITTLE. CAR SEAT.

Patented June 5, 1894.

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& 11mm 1} 122647 kw UNITED STATES PATENT OFFICE.

PETER LITTLE, OF sT. LOUIS, MISSOURI, ASSIGNOR TO SANFORD G. sc nRI'TT,

' on SAME PLACE.

CAR-SEAT.

SPECIFICATION forming s a of Letters as No. 521,121, dated June 5, 1894.

Application filed March 12,1892- To all whom it may concern.-

' sides of the chair and'has special reference to the meansemployed forchan gin g the position of and retammg the seat supporting lugs on the intersecting arms in'their hearings on the ends of the movable seat frame whereby they inclination of'the back may be readilyyaried.

The invention. consists of two arms pivoted on eitherside of the chair, attheir inner ends,

} to the seat frame; at a point equi-distant fromthe bearings onthe end thereof; the free ends of| said. arms being held firmly in position. aga nst the supportingdugs 'by means of springs, as will be hereinafter more fully set forth and described. .5

In the drawings, Figure 1 represen'tsan end elevation of a reversible chair with-the supporting framepartially broken away, showin g the retaining arms pivoted on the-movable seat. Fig. 2 represents an'end view of the seat frame showing the retaining arms in posi? tion for holding the supportingln'gs of the intersecting back suppo. ting arms in their bearings. Fig. 3 is afront'view of the seatlframe, partially in section, showing the supporting lugs in the bearings thereon. Fig.4 is apartial sectional view showing the righting spring and the sliding fulcrum plates between which the spring'is compressed. J

In the drawings accompanying this specification, like letters, indicate like parts, wherever used'in the several figures. I; f

A is the chair frame. having intersecting arms B B pivoted thereon by-pivots' 0 oh slidingplatesP. I

D is the chair back pivoted to the upper ends of the arms 13 B and supported thereby.

E is the movable seat frame having notched bearings F on thee'nds thereof.-v

serni No. 424,634. on model.)

' G G are the supporting lugs on the lower partof theintersectingarmsBBj Theselugs form the points of support of the movable seat. H H are the retaining'arms provided with pendent levers K. Between. these levers is the spring L operating through its expansive forceto keep the retaining arms firmly in posi-' 5 5 tion below the bearing points 'on the seat frame. These arms are provided with notches corresponding with those which form the bear; ings forthe supporting lugs thuspreventing said lugs from slipping from their bearings 6 after the chair back has .been-inclinedv A righting spring Ois held in position under compression between lugs or ears P P in plates 1? P that fit and slideinhorizontal slots function is to keep the pivots C Ccarried by the sliding plates, and towhich the back supporting arms are fulcrumed, at the outerends of the slots, when the supporting armsare in their normal position. They also assist in righting the chair back when returning from its inclined to the normal position (shown in Fig. 1). The lugs G G on the back supporting arms rest in thejoute'r notches when the back is in the normal position. Now when it 7 5 is desired to put theb ack in the first position of inclination, the upper part of the rear arms B will be moved backward and slightly downward-so as, to bring their lugs into the inner notches and'as will readily be seen this will cause the back to be tilted'rearwardly and at the same time, the raising of the rear end of the seat. To obtain the second position of inelination' the front arms and their sliding plates P will'then'be moved backward so 'as .to bring their'lugs into the inner notches and when the plates'resume their normal positionat the outer ends of the slots and the parts v assume. the position of use the seat will be moved farther to the front and'a correspondo 'ing mov'ement-will be given the lower portion of the rear arms and thuseffect a further inclination of the back. 'By the movability of the pivots in their slots Q Q the armsB may be more easily moved to change the lugs from one notch to theother.

Q Q in the sides of the frame A. Their main 65 The spring L which is held under comprespressure .such as would naturally be exerted I by resting against it. 7

What I claim as new and of my own invention, and for which I askLetters Patent of the United States, is- 1. In a reversible chair, the combination with the supporting chair frame and back D, of a movable seat frame having bearings or notches formed in the ends thereof, intersecting arms pivoted -on either side of said chair frame and chair back, and provided with supporting lugs at their lower ends for engagement with the bearings in the seat frame,'r'etaining arms for said lugs pivoted to the seat frame, and sprin gs bearin g against said arms,

2. The combination of supporting frame A,

chair back D, intersecting arms B B pivoted on either side of frame A and provided with lugs G G, sliding plates P, carrying pivots C, springs O,-seat frame E provided with bearings F F, retaining-arms II Hhaving pendent levers K K, springs L acting upon said arms through said levers, constructed'and arranged substantially as set forth;

In testimony that I claim the foregoing as my invention I have signed my name, in presence of two witnesses, this 20th day of October, 1891.

PETER LITTLE.

Witnesses:

JOHN P. PRIMEAU, STEPHEN F. SULLIVAN.

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