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Publication numberUS477906 A
Publication typeGrant
Publication dateJun 28, 1892
Filing dateDec 18, 1891
Publication numberUS 477906 A, US 477906A, US-A-477906, US477906 A, US477906A
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 477906 A
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Description  (OCR text may contain errors)

(N0 Model.)




SPECIFICATION forming part of Letters Patent No. 477,906, dated J une 28, 1892.

Application iiled December 18, 1891. Serial No. 415,455. (No model.)

To a/ZZ whom t may concern:

Be it known that I, CHARLES C. LOCK- s'rAED'r, a subject of the Emperor of Germany, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Reclining- Chairs; and I do hereby declarethe following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a novel construction in reclining-chairs, the objects being to provide a device of this character of simple, durable, and inexpensive construction.

The invention consists in the features of construction and combination of parts hereinafter fully described and claimed.

In the accompanying drawings, illustrating my invention, Figure 1 is a side elevation, partly in section, of a chair constructed in accordance with my invention. Fig. 2 is a similar view showing the chair in another position. Fig. 3 is a detail view.

Referring to said drawings, A indicates the base, and B the seat of the chair, which can be of ordinary construction.

C indicates the back of the chair, which is pivoted to the rear edge of the seat, and D indicates the leg-piece pivoted to the front edge of the seat in a familiar manner.

To each side of the seat B is pivoted a lever l. The upper ends of said levers 1 are pivoted to the arms 2 of the chair, and said arms 2 are pivoted at their rear ends tothe back C. The lower ends of the levers l are pivotally connected with the ends of links or bars 3, and the said bars 3 are pivoted at their other ends to the leg-piece D. It will be noted that the back, arms, and leg-piece are connected together, and therefore must move in unison, so that a person occupying the chair when in an erect position needs only to move the leg-piece slightly, as described hereinafter, and then to move his body backwardly and the back of the chair will conform to such movement, while the leg-piece will rise, as

when the back C is erect the knuckle of said' toggle-joint will stand in alignment with the pivots of the ends of the toggle-joints, or to the other side of said pivots, and thus lock the chair in its erect position. It will be noted in this connection that by constructing the parts so that the knuckle of the togglejoint stands in alignment with or a little to the other side of the pivots of the toggle when the leg-piece is thrown back said leg-piece will be locked when it is moved into this position. In Fig. 3 of the drawings I have clearly shown such parts constructed so that the knuckle of the toggle passes slightly to the other side of the pivots of the toggle; but it will be understood that in accordance with the idea embraced-by my invention the same result-s would be obtained if the knuckle and pivots of the toggle-joint were constructed so as to be located in alignment with each other when the back is erect and said leg-piece thrown back, because then the backcould not be moved without first moving the leg-piece to bring the knuckle to the other side of the said pivots of the toggle. When the back C is to be thrown back, it will be necessaryv to move the legpiece forward to bring the knuckle of the toggle-joint to the other side of said pivots in an obvious manner. Afootpiece 4 is provided with side arms 5, pivoted to the sides of the leg-piece, and stop-pins 6 limit the outward swing of said foot-piece.

I claim as my invention- A chair comprising abase,aseat supported thereby, a back hinged to the rear of the seat,

- arms pivotally connected to the back, levers pivotally connected to the arms and to the seat, a leg-rest having pivotal connection with the seat, and links pivotally connected to the levers and to the leg-rest, the said pivotal connection of the link with the leg-rest being IOO in alignment With or to one side of the piv In testimony whereof I affix my signature in presence of two Witnesses.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4492407 *Jul 19, 1982Jan 8, 1985Syntex (U.S.A.) Inc.Patient support and transverse motion linkage therefor
US7618095 *Jul 14, 2006Nov 17, 2009Heka Dental A.P.S.Chair or a bed having a seat, a backrest and an armrest as well as use thereof
Cooperative ClassificationA47C1/035