US432423A

US432423A - Chair

Info

Publication number: US432423A
Authority: US
Publication date: 1890-07-15
Anticipated expiration: 1907-07-15

Description

2 Sheets-Sheet 1.

(No Model.)

0. E. MIUHAUD.

CHAIR.

No. 432,423. Patented July 15, 1890.

(No Model.) 2 Sheets-Sheet 2 0.5. MIOHAUD/ CHAIR.

Patented July 15, 1890.

' TQIA H Um:

(k M Juverzfar 1 UNITED STATES PATENT OFFICE.

ONESIME E. MICHAUD, OF ST. LOUIS, MISSOURI.

CHAIR.

SPECIFICATION forming part of Letters Patent N 0. 432,423, dated July 15, 1890.

Application filed December 16, 1889. Serial No. 333,856. (No model.)

To all whom it may concern.-

Be it known that I, ONEsIME E. MICHAUD, of St. Louis, Missouri, have made a new and useful Improvement in Chairs, of which the following is a full, clear, and exact description.

The improvement relates to those chairs whosebacks can be inclined and reversed, and, without being restricted thereto, it is especially adapted to railway passenger-cars.

The improvement consists in the special means whereby the chair-back can be reversed and inclined, substantially as is hereinafter set forth and claimed, aided by .the annexed drawings, making part of this specification, in which Figure 1 is a side elevation of the improved chair. A portion of the near arm is broken away to exhibit the parts beyond. A portion of the back is also broken off. The dotted lines indicate diiferent positions in which the back may be placed. Fig. 2 is a plan View of the chair; Fig. 3, a bottom view showing a portion of the mechanism beneath the chairseat used in operating the back; Fig. 4, a section on the line 4 a of Fig. 3, and Fig. 5 a section on the line 5 5 of Fig. 2.

The same letters of reference denote thesame parts.

A represents the chair. It is of the usual form, saving as it may be modified or supplemcnted by the improvement under consideration. Its back B is connected by means of the links 0 C with the links D and shaft E, thereby enabling the back to be shifted from its position at one side f of the chair-seat F to the opposite side f of the chair-seat, the two positions being shown in the full and the broken lines. In either of its positions the back can be inclined more or less froma perpendicular, to which end the shaft E is rotatable in its bearings e e and the'links D are fastened to the shaft E to turn therewith. The two positions of the links D are shown in the full and the broken lines, Fig. 1.

To enable the back to be held at the desired inclination, the shaft E is provided with a notched segment G. A bar H, pivoted to a fulcrum-plate h, coacts with the segment. hen the end h of the bar engages in a notch g of the segment, the shaftE is locked so that it cannot rotate and the-chair-back thereby is held at the desired angle, and when the bar is disengaged from the segment the back is free to be readjusted to another inclination.

To operate the bar II in turn, the following means are preferred: I represents a lever jointed at its middle 1' to the outer end ]L2 of the bar H, and at both ends 2" i elastically depressed by springs J J, which at the upper end thereof bear againstthe seat-frame e and at the lower end thereof upon the lever I. By pressing upward the lever I the outer end 712 of the bar II is thereby elevated sufficiently to disengage its end 7L from the segment G. WVhen the upward pressure upon the lever H ceases, the springs J J again depress it and the connected end 7L2 of the bar II, causing said bar to engage the proper notch in the segment and lock the latter, the chairback having previously been placed on the desired side and in the desired position.

I claim- 1. In a reversible chair, the combination, with the frame, seat, and back, of the central transverse shaft E, having bearings in the side railings of the seat, the vertical links D, connected to, rising from,and turning with said shaft, the links 0, connecting the upper ends of the links D and the middle portions of the side bars of the back, and the links 0, connecting the lower ends of said side bars andthe lower ends of the links D, substantially as specified.

2. The combination, with the frame, seat, back, central transverse shaft E, links D, rising from and turningwith said shaft, and links O O, connecting the links D and the back, of the toothed segment G, secured about centrally to the shaft E, the fulcrum-plate h, secured to the chair-frame, the bar II, pivoted to said plate and arranged to engage in the notches of the segment, theleverl, extending along one side of the chair-frame and pivoted centrally to the other end of the bar H, and the springs I 1 between the seat-frame and the ends of the lover I, and serving to depress the latter, substantially as specified.

WVitness my hand this 7th day of December, 1889.

' ONESIME E. MIOHAUD.

Witnesses:

O. D. MOODY,

C. 0. LOGAN.