US324954A - perley - Google Patents

Description

(No Model.)

0. A. PERLEY.

TILTING CHAIR.

No. 324,954. Patented Aug. 25, 1885.

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tlirnn STATES PATENT OFFICE,

CHARLES A. PERLEY, OF BALDWINSVILLE, MASSACHUSETTS, ASSIGNOR TO THOMPSON, PERLEY & W AITE, OF SAME PLACE.

TlLTlNG-CHAIR.

SPECIFICATION forming part of Letters Patent No. 324,954, dated August 25, 1885.

Application filed June 19, 18:55.

To all whom it may concern:

3e it known that I, CHARLES A. PERLEY, of Baldwinsville, county of \Vorcester, State of Massachusetts, have invented an Improve- 5 ment in. 'lipping or Rocking Chairs, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

IO This invention has for its object to produce a simple and efficient chair capable of being tipped or rocked freely back and forth without the employment of curved rockers having their edges resting on a base or on the floor.

In accordance with my invention,the chairseat is provided back of its longitudinal center and at its under side with short leg-like portions which are pivoted to links, the op posite ends of which are pivoted upon stands or uprights erected upon the base-frame, the front side of the scat being supported above the base-frame by means of links, the upper ends of which are pivoted upon cars attached to the seat-frame, the lower ends of the links being pii oted upon stands connected with the base-frame. The leglike portions at the rear side of the seat frame are herein shown as prolongations of the backpieces of the chair, and at the pivotal points of the said leglike portions with the links I have provided strong springs, the normal tendency of which is to keep the seat-frame elevated, yet permitting it to descend with a rocking motion when weight is applied to the seat. The support of the chair-seat at its front and rear sides is such as to permit the seat to rise and fall and to rock, it partaking of the rocking motion of an ordinary rocking-chair, but without the employment of rockers.

The particular features comprised within my invention will be pointed out in the claims at the end of this specification.

Figure 1, in side elevation, represents a chair embodying my invention, the leg-like portion and link at one side of the chair being broken out; Fig. 2, a section below the line at m, the dotted lines showing the outline of the seat-frame, the rung at being broken away at one end; and Fig. 3 shows a moditica tion to be referred to.

(No model.)

The chairseat a of usual shape or material has back-pieces Z Z) to constitute a part of the back above the seat, and at the rear of the seat are downwardly-extendingleg likeportions,b, the said portions,as herein shown, constituting integral parts of the back-pieces b, such construction insuring stiffness and rigidity in the cheapest possible manner; but, if desired, the leg-like portions 2) may be separate from the back-pieces and be attached to the underside of the seat-frame. The lower ends of the leglike portions b are braced or held rigidly by means of braces 71., screwed to them and to the under side of the seat, one at each side of the seat.

The seat a, at its under side near its front, is provided with ears 3, which are screwed to the seat, the said ears receiving bolts twhich serve to connect the seat-supports f with the seat, the supports near their opposite ends being pivoted by bolts 5 upon stands g, having screw thread stems extending down through slots in and made adjustable longitudinally with relation to the base-frame 0, which latter is composed of side bars joined by suitable rungs,r,and a strong braced", the shanks of the stands being held in adjustable position by nuts 9.

Upon the base-frame at the rear of a vertical line drawn from the rear edge of the seat I have erected uprights or stand (I, the said uprights being herein shown as attached to the cross-piece d close to the inner sides of the side pieces of the base-frame, theuprights being connected by arung, r, thelattcr being pivoted by bolts to the cross-piece.

To further brace the uprights d and pro vide the frame with a very strong pivotal bearing, I have passed through the uprights from side to side a long bolt or rod, 2, and from the said rod to the base-frame are extended metal straps m.

The leg-likeportious b are joined by a rung or round, in", upon which are suitably attached, by screws or otherwise, metallic cars 21, which receive each one end of the stronghelical spring 0, the opposite ends of the said spring entering holes in lugs or cars 7, forming part of the links 0, one end of each of the said links being pivotally connected by a bolt, 12, extending through the lower extremity of the leg-like portion 1), the opposite ends of the said links being pivoted upon the rod 2 referred to.

The spring 0 acts normally to keep the chairseat in its full line position, Fig. 1; but when weight is applied to the chair-seat, or the back is tipped backward, the pivotal points 12 of the portions 1) and links 0 descend, the seatsupports f then turning upon the pivots 4 5, the backward tipping of the seat being limited by the contact of the ends of the seat supporlsfextended beyond the pivots5with stops 8, the said ends at such time meeting thenpper sides of the side pieces of the base-frame c, or meeting 'india-rubber stops or cushions s, placed in openingsmade in the base-frame.

The standsg are made adjustable to secure the proper level or poise for the chair-seat.

The function of the spring 0 of the portions 1) and the links 0 is to so support the seat that it will have elasticity in a vertical direction at the same time that it is permitted to rock or tip like a rocking chair, the descent of the scat straining and increasing the power of the sprlng.

The upright d may, if desired, be made of v metal with side ribs, 8, (see Fig. 3.) to extend across the upper and under side pieces of the base-frame, the uprights being connected with the base-frame by suitable bolts, 9.

I elain1 1. A chair composed, essentially, of a baseframe, standards or uprights thereon, a seatframe and short leg-like portions below it, and links f, pivotally connected at or near their ends with relation to the seat and the baseframe, and links and springs to constitute a spring-joint, substantially as described, between the leg-like portions of the seat-frame and the said standards or uprights, to operate substantially as and for the purposes dc: scribed.

2. The base-frame, itsspring-stops, the adjustable stands, and the links f f, pivoted to the said stands, as shown, and to the seat, combined with the said seat, the standards or uprights, the links, and springs, to operate substantially as described.

In testimony WhereofI have signed my name to this specification in the presence of two subscribing witnesses.

CHARLES A. PERLEY.

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