Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS960607 A
Publication typeGrant
Publication dateJun 7, 1910
Filing dateApr 14, 1910
Priority dateApr 14, 1910
Publication numberUS 960607 A, US 960607A, US-A-960607, US960607 A, US960607A
InventorsFrank Bernard Wersel Jr
Original AssigneeFrank Bernard Wersel Jr
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Automatic reclining-chair back.
US 960607 A
Abstract  available in
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

P. B. WERSEL, JR. AUTOMATIC REQLINING GHAIR BACK. APPLICATION FILED 11.14, 1910.

960,607, I Patented June 7,1910.

I IIIIOI 1 ll bl 1 no 0 w| u.

Wifizesse s In wemw iffowzez FRANK BERNARD WERSEL, JR., OF MOUNT LOOKOUT, OHIO.

AUTOMATIC RECLINING-CI-IAIR BACK.

Specification of Letters Patent.

Patented une '7, 1910.

Application filed April 14, 1910. Serial No. 555,469.

To all whom 'it may concern:

Be it known that I, FRANK BERNARD VVERsEL, Jr., a citizen of the United States of America, and resident of 3439 Linwood avenue, Mount Lookout, in the county of Hamilton and State of Ohio, post-office address Nos. 1104 to 1112 Kenner street, Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in an Automatic Reclining-Chair Back; and I do hereby declear the following to be a full and exactdescription thereof, reference being had to the accompanying drawings, making a part of this specification.

My invention relates to an automatic reclining chair back and it has for its object the improvement in construction of such devices whereby they are simplified and rendered more eflicient in action.

The novelty of my invention consists in the combination and sub-combination of the parts as will be hereinafter set forth and specifically pointed out in the claim.

Figure l is a side elevation of my automatic reclining chair back. Fig. 2 is a rear elevation. Fig. 3 is a side elevation of a modified form of the wedge. Fig. 4 is a front elevation of the modified form of the wedge.

Similar letters of reference indicate corresponding parts in the several figures of the drawings.

A represents the frame of the chair, B the back, 0 the springs attached to the back, C a roller connected to the lower end of the spring C, and D is an incline having an oblong hole for a screw, secured to the back of the frame A, against which the roller C works. A latch E is pivoted to the under side of the arm of the frame A, in

which a lug F connected with the back B catches when the chair back is held in one position.

G is a stop for limiting the backward inclination of the back B.

In the modified forms of the incline, D, are notches D in which a pawl D catches. Incline plates D are attached to the sides of the incline D which can be raised and lowered so as to prevent the pawl from catching in the notches D when raised and allow the roller 0 to roll up and down on the incline of the plates but when the plates are lowered the pawl catches in the notches holding the back in that position.

The operation of my automatic reclining chair back is as follows. When the lug F is freed from the latch E the roller C rolls over the incline D. As the roller rolls down over the incline the pressure of the spring C is increased thereby causing the back B, to give a greater resistance to being forced back. The spring and incline can be so adjusted as to suit any one sitting in the chair.

Having described my invention what I claim is An automatic reclining chair back, hinged to the seat portion, the pressure upon the back determining the inclination of the back, springs attached to the back, the lower end of the springs provided with rollers, the rollers playing against an incline, the position of the roller, on the incline determining the resistance of the back to pressure, all substantially as described.

FRANK BERNARD WERSEL, JR.

lVitnesses:

W. D. Bneos, EDITH E. LEMON.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2750993 *Dec 16, 1953Jun 19, 1956Reconstruction Finance CorpFolding and adjustable chair back
US4602818 *Jan 13, 1984Jul 29, 1986Roder Gmbh SitzmobelwerkeApparatus for the attachment of a lower back support upholstery to a chair
US5904398 *Oct 23, 1997May 18, 1999Farricielli; SusanErgonomically designed seat assembly for a portable wheelchair
US7416252 *Jan 3, 2007Aug 26, 2008Green Continental Furniture (M) Sdn BhdBackpost unit of wooden dining chair with reclining mechanism
US7681952 *Jun 6, 2008Mar 23, 2010Pro-Cord S.P.A.Chair with tiltable backrest
Classifications
Cooperative ClassificationA01M31/025