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Publication numberUS132762 A
Publication typeGrant
Publication dateNov 5, 1872
Publication numberUS 132762 A, US 132762A, US-A-132762, US132762 A, US132762A
InventorsWilliam W. Haupt
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Improvement in chairs
US 132762 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)


Improvement in Chair-s.

Patented Nov. 5, 1872.

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Specification forming part of Letters Patent No. 332362, dated November 5, 1872.

To all whom it may concern:

Be it known that I WILLIAM W. HAUPT, of Mountain City, in the county of Hays and State of Texas, have invented a new and useful Improvement in Chairs, and I do hereby declare that the following is a full, clear, and

exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawing forming part of this specification, in which- Figure 1 represents avertical section of my improved chair; and Fig. 2 is a front elevation of the same.

swing on the pins a so as to adjustitself to the position of the person occupying the chair, whose back leans against said plate. Thus, if the back of the occupant is inclined forward, the lower end of the plate G will be thrown back; if inclined backward, the upper end of G will also be thrown back; and if the persons back is held quite straight the plate will also hang perpendicular. An adjustable support for the back is thus provided which will absolutely prevent a curvature of the back dangerous to health or injurious to appearance.

The back need not extend above the pivot, and maybe entirely dispensed with if posts for holding the plate 0 are made to project from the seat.

Having thus described my invention, I claim as new, and desire to secure by Letters Patent- A back-plate, O, journaled below the middle of the chair-back, and in bearings that project forward therefrom, as and for the purpose specified.

WM. W. HAUPT. Witnesses:


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2612939 *May 15, 1950Oct 7, 1952Shaw Walker CoTilting chair back
US7387339 *Jul 30, 2002Jun 17, 2008Alexei Alexeevich BykovSitting device
US7992935 *Feb 23, 2007Aug 9, 2011Peter Opsvik AsBack supporting device
US20050168030 *Jul 30, 2002Aug 4, 2005Bykov Alexei A.Sitting device
US20090096266 *Oct 11, 2007Apr 16, 2009Chun-Chang TaiSeat frame assembly
US20090224582 *Feb 23, 2007Sep 10, 2009Peter Opsvik AsBack supporting device
US20110221253 *May 24, 2011Sep 15, 2011Manuel SaezErgonomic Side Chair