US1212675A - Convertible chair. - Google Patents

Description

G. W. PETTYJOHN.

CONVERTIBLE CHAIR.

APPLlCATlON FILED JAN. 5. I916.

Patented Jan. 16,1917.

3 SHEETS-SHEET l.

G. W. PETTYJOHN.

' CONVERTIBLE CHAIR.

APPLICATION FILED JAN-5.1916.

1 ,21 2,675. Patented Jan. 16, 1917.

3 SHEETSSHEET 2- wfl naoow G. W. PETTYJOHN.

CONVERTIBLE CHAIR.

APPLICATION FILED JAN-5,1916.

Patented J1in.16,19l7.

3 SHEETSSHEET 3- PATENT OFFICE.

GEORGE W. PE'ITYJOHN, 0F WOODBURY, NEW JERSEY.

CONVERTIBLE CHAIR.

Application filed January To all whom it may concern Be it known that I, GEORGE W. Perry- JOHN, a citizen of the United States, residing at \Voodbury, in the county of Gloucester and State of New Jersey, have invented certain new and useful Improvements in Convertible Chairs, of which the following is a specification. I

My invention relates to improvements in convertible chairs, the object of the invention being to provide a chair which may be used as an ordinary Morris chair capable of adjustment, which may be used as a rocking chair with means thereon for moving the chair on its rockers, and which may be used as a couch.

A further object is to provide a chair of the character stated which is capable of a wide range of adjustment to suit the user, and which may be adjusted and operated without the necessity of leaving the chair, so that the user can adjust the chair to any position desired while he is seated therein.

With these and other objects in view, the invention consists in certain novel features of construction and combinations and arrangements of parts as will be more fully hereinafter described and pointed out 111 the claims.

In the accompanying drawings: Figurel is a view in side elevation illustrating my improvements in one position. Fig. 2 is a similar view showing the chair in another position of adjustment. Fig. 3 is a bottom plan view of Fig. 2, the view being on an enlarged scale and partly broken away. Fig. 1 is a fragmentary View in section on the line H of Fig. 3. Fig. 5 is a fragmentary view in section on the line 5-5 of Fig. 3. Fig. 6 is a fragmentary bottom planview illustrating the operating vmeans for the spring bolt 32 and omitting other features which would hide the details, and Fig. 7 is an enlarged central longitudinal vertical section through the chair-with certain parts broken away.

1 represents the seat of my improved chair, 2 the back connected to the seat by hinges 3, and a is the foot rest connected to the seat by hinges 5. The seat 1 is secured to uprights 6 at the sides of the chair, and these uprights at their lower ends are secured to and supported upon rockers 7 The uprights 6 extend above the seat 1,

Specification of Letters Patent.

Patented Jan. 16, 1917.

5, 1916. Serial No. 70,337.

and support arms 8, and vertical braces 9 connect the intermediate portions of the arms 8 with the seat 1.

As the chair contains considerable mechanism under the seat, I preferably provide filler boards 10 under the seat between the uprights 6, as shown clearly in Figs. 1 and 2.

The back 2 is provided with a hinged extension 11 which is secured by means of a pawl 12 in a notched disk 13, and this extension may be raised or lowered as shown in the drawings.

To the inner faces of the filler boards 10, segments 14: are connected by stud bolts 15, and these segments have flanges 16 provided with openings 17 into which spring-pressed latch bolts 18 project. These latch bolts 18 are movable in openings 19 in the vertical braces 9, and are in convenient reach of the occupant of the chair.

The segments 1st are connected by short links 20 with relatively long links 21. The links 21, at their forward ends, are pivotally connected to brackets 22 secured to foot rest 4, and at their rear ends are pivotally connected to brackets 23 secured to back 2.

By reason of the construction above described, when the back 2 is moved downwardly, preferably by the weight of the occupantof the chair, the links 20 and 21 cause the segments 14 to move. This movement cannot take place, however, until the latch bolts 18 are drawn out of the segments, and after the desired adjustment is had, the latch bolts engage the segments or rather the openings 17 in the segments, and secure the chair at the desired adjustment.

A relatively heavy coiled spring 2 1 counterbalances the weight of the parts and is connected at one end. to a bracket 25 on foot rest 4, and at its other end to a bracket 26 on a cross bar 27 secured to uprights 6. This spring 21 tends to draw the foot rest 4 downwardly, and at the same time tends to elevate the back 2 and balance the weight of the back so as to render adjustment easy.

In brackets 28, securedbelow thelchair bottom 1, a shaft 29 is supported, and on this shaft 29, a drum 30 is mounted to turn. The drum 30 is provided in one side with a circular series of holes 31 to receive in any of them a spring latch bolt 32 which is connected by a cord 33 with one of the latch bolts 18 as shown most clearly in Fig.

6, in which it will be noted that the cord 33 is preferably wrapped around idle pulleys 34.

A short shaft 35 is supported in a bracket 36 depending from chair seat 1 in advance of drum 30. A toggle lever 37 is pivotally connected at its upper end to the shaft 35, and at its lower end to forwardly projecting links 38, the latter having their rear ends pivotally connected. to depending bars 39 fixed to transverse bar 27.

A roller 40 is provided at the lower end of toggle lever 37 A roller 41 is provided at the upper end of toggle lever 37 and a roller 42 is provided at the center or hinged connection of the members of the toggle lever 37.

A. foot lever 43 is connected to the foot rest 4 by a hinge 44, and a strap 45 wound on the drum 30 is secured at one end to the foot lever 43. The strap 45 extends from the drum 30 around roller 41, thence around roller 42, thence around an idle roller 46 on the foot rest 4, thence through a slot 47 in the foot rest, and is then secured to foot lever 43 as shown at 48.

A thin steel band 49 is secured to the foot lever and extends through slot 47 and tends to hold the strap straight in its movement by the foot lever, and prevent any slack or entanglement of the strap. A shorter steel strip 50 is also secured to the strap 45, and. operates to limit the movement of the strap, and foot lever, in one direction by reason of its engagement with the foot rest 4, yet this strip 50 which constitutes a spring tongue, can be bent so as to pass through the slot 47 and allow the foot lever 43 to lie fiat against the foot rest when desired. By means of this foot lever 43 and its cooperating parts, the occupant of the chair can, with his feet, move the foot lever 43, and cause the chair to rock. This rocking action is caused by the movement of toggle lever 37, the lower roller 40 bearing on the floor, and the movement of the foot lever 43 causes the toggle lever to straighten, and thereby exert an upward pressure on the upward part of the chair seat 1.

The toggle lever is bent, and the foot rest 43 drawn inwardly when the chair rocks forwardly, hence the pressure of the feet against the foot rest 43 operates to rock the chair rearwardly and its return movement causes the foot lever to move inwardly.

The drum is permitted to turn whenever the chair back 2 and foot rest 4 are adjusted, as the latch bolt 32 operates in conjunction with one of the latch bolts 18, and a coiled spring 51 tends to turn the drum 30 in a direction to wind the strap thereon.

To hold the chair against rocking movement whenever desired, I provide arms 52 which are pivotally connected between their ends to the rockers 7 as shown at 53. These arms 52 are moved by fingers 54 on a transverse shaft 55, the latter supported in the rockers 7, and provided on one end with a hand lever 56. This lever 56 is adapted to be operated by the occupant of the chair, and notched brackets 57 and 58 are secured to the chair and are adapted to hold this lever in either of its two adjustments.

In the position shown in Figs. 1, 2, and 7, the arms 52 are pressed downwardly against the floor and prevent any rocking movement. When it is desired to rock, the lever 56 is swung to the position shown in dotted lines in Fig. 1.

Various slight changes might be made in the general form and arrangement of parts described without departing from my invention, and hence I do not limit myself to the precise details set forth, but consider myself at liberty to make such changes and alterations as fairly fall within the spirit and scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a chair, the combination with supports, rockers carrying the supports, of a seat secured to the supports, a back, arms pivotally connected to the rockers, a shaft supported by the rockers and having fingers thereon engaging the arms, and a lever on one end of the shaft adapted to move the shaft and arms to hold the chair against rocking movement, substantially as described.

2. In a chair, the combination with supports, rockers carrying the supports, of a seat secured to the supports, a back, a foot rest hinged to the seat, a foot lever connected to the foot rest, and chair rocking means located under the chair and operatively connected to the foot lever, substantially as described.

3. In a chair, the combination with sup ports, rockers carrying the supports, of a seat secured to the supports, a back, a foot rest hinged to the seat, a toggle lever under the chair, and a foot lever connected to the foot rest and operatively engaging the toggle lever to rock the chair when the foot lever is moved, substantially as described.

4. In a chair, the combination with supports, rockers carrying the supports, of a seat secured to the supports, a back, a foot rest hinged to the seat, a drum mounted under the chair, a toggle lever connected to the chair and having one end engaging the floor, a foot lever connected to the foot rest,

and a flexible device connected at one end to the drum, and at its other end to the foot rest and between its ends operatively engaging the toggle lever, substantially as described.

5. In a chair, the combination with sup ports, rockers carrying the supports, of a seatsecured to the supports, a back, a foot rest hinged to the seat, a drum supported under the chair, a spring'tending to turn the drum in one direction, a latch bolt looking the drum against turning movement, a

toggle lever located below the chair and having its lower end engaging the floor, a foot lever hinged to the foot rest, a strap secured to the drum and to the foot lever and between its ends engaging the toggle lever, and

- scribed.

rollers on the toggle lever around which the strap is passed, substantially as de- 6; Ina chair, the combination with supports, rockers carrying the supports, of a 7 seat secured to the supports, a back and a pivotally connected to the supports, links,

openings in foot restboth hinged to the seat, segments connecting the segments with the back and foot rest, and latch bolts carried by the supports and engaging the segments, substantially as described.

7. In a chair, the combination with sup ports, of a seat secured to the supports, a

back and a foot restboth hinged to the seat,

back and a foot rest both hinged to the seat,

segments pivotally connected to the suports and having a series of openings therein, links pivotally connecting the segments with the back .and footrest, whereby the copies of this patent may be obtained tor five cents each, by addressing the Commissioner of Patents, j v Washington, D. G. g

the segments and holding the movementof said back and foot i the pivotal movement of the segments,--and I spring-pressed latch bolts engaging openings in the segments and hol ing the back and foot rests in various positions of adjustment, and a coiled spring connecting the foot rest and the supports andexerting a pull on the foot rest tending to move the se ments in a direction to elevate the back,"

su stantially as described.

9. In a chair, the combination with supports, of a seat secured to the supports, a back and a foot rest both hingedto the seat, segments pivotally connected to the sup in the n ports and having a series of openings therein, links pivotally connecting the se I ents with the back and foot rest, where y the movement of said back and footcrest causes the pivotal movement of 'theseg'ments, and v spring-pressed latch bolts engagin in the v openings in the segments and hol ing the back and foot rests in various positions of adjustment, a toggle lever supported underthe chair and at its lower endengaging the floor, a drum supported under the chair and havinga circular series of openings one side, a latch bolt connected to and movable with one of. the first-mentioned latch. bolts, said last-mentioned latch bolt en ag-f ing in the openings inthe drum to hol the drum against movement, a -foot lever hinged to the foot rest, a strap wound OIl'llhB drumz and secured at one end to the footrest, said strap between its ends operatively' engaging the toggle lever, substantially as described.

- In testimony whereof I have signed my name to this specification in'the presence 8i) of two subscribing Witnesses.

GEORGE W. PETTYJOHN.

Witnesses: IOLA REDFIELD,

ERNEST Rnnrmm).

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