US861509A

US861509A - Portable chair.

Info

Publication number: US861509A
Application number: US34038706A
Authority: US
Inventors: William B Frederick; Charles L Okell
Original assignee: Individual
Current assignee: Individual
Priority date: 1906-10-24
Filing date: 1906-10-24
Publication date: 1907-07-30
Anticipated expiration: 1924-07-30

Description

PTENTBD JULY 30, 1907.

W. B; FREDERICK & C. L. OKELL.

PORTABLE CHAIR. APPmoA'rIoNVHLBn 00124, 190e.

ATTORNEYS WZZZWZ 05677 Z165 JNVENTORJ YBJ] I 'I' UNITED STATES PATENT muon.

WILLIAM B. FREDERICK AND CHARLES L. OKELL, OF FORT MADlSON, IOWA.

PORTABLE CHAIR.

Specification of Letters Patent.

Patented July 30, 1907.

Application filed October 24,1906. Serial No. 340.387. A

To all 'whom 'it may concern:

Be it known that we, WILLIAM B. FREDERICK and CHARLES L. OKELL, citizens of the United States, residing at Fort Madison, in the county of Lee and State of Iowa, have invented a new and useful Portable Chair, of which the following is a specification.

This invention relates to portable chairs of that character designed for use upon stands, etc., where the ordinary board seats are provided. Y

The obj ect of the invention is to provide a foldable seat which can be readily carried and which has combined with it a back securely connected to the seat so as to form a rigid back rest for the user.

A still further object is to provide novel means whereby the seat can be securely fastened to a supporting board and displacement thereof prevented as long as desired.

With these and other objects in view the invention consists of certain novel features of construction and combinations of parts which will be hereinafter more fully described and pointed out in the claims.

In the accompanying drawings is shown the preferred form of the invention.

In said drawings: Figure 1 is a perspective view showing the seat in position upon a supporting board, a portion of the seat and back being broken away to show one of the connecting links in perspective; Fig. 2 is a side elevation of the chair folded7 the casing of the adjustable holder being shown in section; and Fig. 3 is an enlarged transverse section through the adjustable holder and a portion of the seat.

Referring to the figures by characters of reference, 1 is the seat of the chair the sides thereof being provided with longitudinal slots 2 whichA are open at their rear ends, and within whichare pivoted the ends of links 3. The opposite ends of these links are pvoted within slots 4 formed longitudinally within the side strips of a back 6 and the links are so proportioned that when the same are disposed longitudinallywithin the slots 2 the sides of the back 6 will project below the rear of the seat and will contact therewith and be braced at a predetermined angle to the seat. Supporting plates 7 are secured upon the bottom of the seat 1 so as to extend under the slots 2 and these plates serve to limit the downward movement of the link. By slightly raising the back the same can be swung forward on to the seat7 as shown in Fig. 2 and form a compact bundle. Those portions of the back projecting below the seat are provided with sharpened lugs 8.

`Secured to each side of the seat 1 near a point adjacent the front thereof is a casing 9 which may be fastened in any preferred manner and slidably mounted within this casing is a rack bar l0 having a hook 11 at its iront end, while its rear end is provided with an enlargement or head 12. This bar is adapted to slide upon a stop or holding screw 13 which extends transversely through the front portion of the casing and the teeth on the rack bar are adapted to successively engage this stop, although ordinarily they can be disengaged therefrom simply by lifting the rack bar. A stem 14 is rotatably mounted within the upper portion of the casing and adjacent the stop 14, and the outer end of this stem carries a knob 15 while that portion thereof within the casing has an eccentric 16 extending therefrom and adapted to bear upon the bar to hold the same in position upon the stop 14. By turning this eccentric away from the bar the same can be lifted from the stop and moved to any desired position thereon after which the bar can be locked in place by turning the knob 15 so as to throw the eccentric 16 downwardl thereagainst. As heretofore stated one of these adjustable rack bars is located at each side of the chair seat and one of the lugs 8 is also arranged in the lower portion of each side of the back 6. When the chair is folded as shown in Fig. 2 it can be conveniently carried fromv place to place and should it be desired to secure it upon a supporting board such as shown at 17 the back is swung upward from the seat and the links 3 moved downward into the slots 2 until they rest on the plates 7. The rack bars 10 are then adjusted longitudinally until the distance between the hooks 11 and the lugs 8 are approximately the same as the width of the board 17. The hooks 11 are then forced into the front edge of the board and the back is pressed backward so as to swing the lugs 8 forward into engagement with the rear edge of the board 17. The chair will therefore be securely locked in place and there will be no danger of the same slipping out of position as a result of the movement of a person occupying it. The chair can be very easily detached from the board simply by folding the back downward on to the seat. This will serve to withdraw the lugs 8 from the rear edge of the board 17 and the hooks 11 will be easily pulled forward from the board.

It will bev seen that this chair is very simple, durable and compact in construction and in view of the facility with which it can be connected to a supporting board it is especially adapted for use at chautauquas, athletic fields, and other places where rough stands are often erected for use by large assemblies. By providing this seat a person can occupy a stand of rough construction without danger of injury to clothing from splinters, etc.7 and the comfort of the user is insured because of the size of the seat and the provision of the back.

The preferred form of the invention has been set forth in the foregoing description but we do not limit l ourselves thereto as we are aware that modifications may be made therein without departing from the spirit or sacrificing the advantages thereof, and we therefore reserve the right to make such changes as fairly fall Within the scope oi the claims.

What is claimed is:

1. A chair comprising a seat, a back, links pivoted Within the seat and back, said back being adapted to fold upon the seat and having an end adapted to project below the seat, lugs upon saidprojecting portion of the back, and'adjustable support engaging devices carried rby the s eat.

K 2. A chair comprising a seat having slots therein, a slotted back, links pivoted within the slots and the seat and back, said back being adapted to fold upon the seat, support engaging devices extending from one end portion of the back, rack bars adjustably mounted upon the seat, support engaging hooks carried thereby, and means for locking the bars in adjusted position.

A chair comprising a seat having slots in the sides thereof, a back having slots therein, links pivoted Within the slots and the seat and back, said back being adapted to fold upon the seat and one end of the back to project below the seat, support engaging devices upon said projecting portion of the back, and support engaging devices adjustably connected to the seat.

4. A chair comprising a seat having slots inthe sides thereof, a back having slots therein, links pivoted within the slots and the seat and back, said back being .adapted to fold upon the seat and one end of the back to project below the seat, support engaging devices upon said projecting portion of the back, rack bars adjustably connected to the seat, support engaging hooks extending therefrom, and means for locking the bars in adjusted position.

5. A' chair comprising a seat, a back, an oscillatory connection between the back and seat, support engaging de- Vvices carried by the back, rack bars adjustably connected to the seat, support engaging devices integral with said bars, and means for locking the rack bars in adjusted position.

(l. A chair comprising a seat, a back, links pivoted Within the seat and back, said back being adapted to fold flat upon the seat and having a portion adapted to project below the seat, support engaging means carried by said pro jecting portion, and adjustable support engaging devices carried by the seat.

In testimony that we claim the foregoing as our own, We have hereto aiixed our signatures it the presence of two witnesses.

WILLIAM B. FREDERICK. CHARLES L. OKELL.

Witnesses:

LILLlAN OKELL, F. G. FRI-:Dumon