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Publication numberUS1256856 A
Publication typeGrant
Publication dateFeb 19, 1918
Filing dateSep 14, 1916
Priority dateSep 14, 1916
Publication numberUS 1256856 A, US 1256856A, US-A-1256856, US1256856 A, US1256856A
InventorsJohn J Wittwer Sr
Original AssigneeJohn J Wittwer Sr
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1256856 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)




- Patented Feb. 19, 1918.



Application filed September 14, 1916.

To all whom it may concern:

Be it known that I, Jot-IN J. ll Vrrrwnn, Six, a citizen of the United States, residing Seattle, in the county of King and State of \Vashington, have invented certain new and useful improvements in Chairs, of which the following is a specification.

This invention relates to chairs; and its object is to provide a chair which is adapted to various uses by having a back which may be conveniently adjusted and secured at predetermined heights in both upright and inclined positions.

The invention consists in the novel construction, arrangement and combination of devices, as will be hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a rear elevational view of a chair embodying my invention. 7

Fig. 2 is a longitudnal vertical section of the same.

Fig. 8 is a similar view with the back illustrated in difierent positions from which it is shown in Fig. 2.

Fig. 4 is a fragmentary the hand-rest shown in the preceding views.

Fig. 5 is a perspective view of one of the chair-back guides shown detached,

Referring to the drawings, the numeral 6 represents the seat of'a chair which is rigidly secured to and supported by front and rear legs 7 and 8 rigidly connected by longitudinal and transversely arranged frame members 9 and 10.

According to the present invention, the rear legs 8 are disposed to'the rear of the seat 6 and, like the front legs, extend above the seat to support arms 11.

T he chair-back 12 is of less width than the distance between the rear legs 8. Fixedly secured to the latter are guide plates 13 each having a vertically disposed slot or way 1d communicating with branch ways 15 and 16 respectively provided in the rearwardly and forwardly projecting plate arms 15 and 16 As shown, the arm 15 extends from the upper end of the upright part of a plate and the other arm 16 extends from near the bottom of the same.

Cooperating with the aforesaid ways are spaced studs 17 and 18 which protrude from attachments 19 rigidly secured to the side posts 12 of the chair back. These studs extend into the ways of the adjacent guide plates and serve to regulate the chair-back front elevation of Specification of Letters Patent. Patented Feb. 19, 1918.

Serial No. 128,002.

when moved into various positions and subsequently serve to secure the same in such adjustments.

The functions of the studs and guideways Wlll be understood from an inspection of Figs. 2 and 3 and which may be explained as follows:

Assuming the chair-back to be in its uppermost inclined position in which it is shown by full lines in Fig. 2, the studs 17 and 18 will be respectively located in the ways 15 and 14L. By drawing the upper end of the back forward to carry the studs 17 into the ways 14 and lowering the back until arrested by a stop pin 2O inserted in a hole 20 of one of the plates 13, the back will apwould be regulated to have the studs occupy positions indicated by 17 and 18 in the ways 14 and 16 of the guide plates.

lhe adjustability of the chair-back, as above explained, renders the same useful in a number of applications, notably in ladies hair-dressing shops, where the chair occupants require a variety of services as, for QX ample, hair-dressing and shampooing is best performed by the operator, and affords easy positions to the subject, with the back in the positions denoted by full and broken lines, respectively, in Fig. 3, with the upper end. of the back of the chair below the occupants head and enabling the operator to work equally as effectually from either side or the rear of the chair. When, however, 1 face massage treatment is given, the back should be arranged in its upper inclined position, indicated by full lines in Fig. 2, whereupon the subject assumes a semireoumbent position with her head resting against the back.

For manicuring work, the most advantageous position is that in which the subject sits upright with her head against the high back (dotted lines A, Fig. 2) and may have her hands treated while resting on the chair arms or, preferably, upon a bridgepiece 21 which has its extremities bear upon tion will be understood without requiring a more extended explanation.

What I claim, is

1. In a chair, an adjustable back having studs protruding from opposite sides thereof in combination with guides secured to the chair frame and provided with communicating substantially upright and horizontal ways for the reception of said studs whereby the back is movable into diflerent elevations and adjustable into inclined positions at its uppermost elevation and also when in proximity to its lowest elevation.

2. In a chair, the combination with the chair frame and an adjustable back therefor,

of guides secured to said frame, each of said guides being provided with a substantially upright way and substantially horizontal ways respectively extending forwardly and rearwardly therefrom in proximity to the lower and upper ends of said upright way,

Copies 0! this patent may be obtained for studs protruding in spaced relations from opposite sides of the chair-back and cooperating with the ways to guide the back in regulating the posltionsof the same and also serving to support the back at selected elevations.

3. In a chair, the combinationwith the chair frame, and a back movable relatively thereof, of interengaging means provided on said frame and the back, whereby the latteiis supported at predetermined heights and tive pairs of studs areslidable therein for maintaining the back in upright positions at various elevations or in tilted positions about the axis of either of said pairs of studs, selectively.

Signed at Seattle, Washington, this rlst day of September, 1916.


Witnesses: i


five cents each, by addressing the "Commissioner of Patents, WashingtomD. O.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2509102 *Apr 1, 1948May 23, 1950Kuebler Carl J JVertically adjustable back for chairs
US2549902 *Oct 2, 1945Apr 24, 1951Hibbard Donald LSeat
US2603275 *Jan 26, 1948Jul 15, 1952Kuebler Carl J JAdjustable chair
US2792876 *Dec 22, 1955May 21, 1957Colson CorpReclinable chair construction
US2863495 *Mar 1, 1955Dec 9, 1958La Z Boy Chair CoReclining chair with adjustable back
US3385632 *Dec 15, 1966May 28, 1968Scelzi JosephChaise lounge with adjustable back
US4919485 *Jun 20, 1988Apr 24, 1990Grosfillex S.A.R.L.Seats constructed of interlocking elements
US7533933 *Aug 1, 2007May 19, 2009Cybex Industrial, Ltd.Child seat for a motor vehicle
U.S. Classification297/357
Cooperative ClassificationB60N2/34