US 639076 A
Description (OCR text may contain errors)
No. 639,076. Patented Dec. I2, i899. J. H. S. MAY. ADJUSTABLE EASY CHAIR 0R LOUNGE.
(Application filed Mar. 8, 1899.)
2 Sheets-Sheet I.
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No. 639,076. Patented Dec..|2, 1899.
J. H. S. MAY. ADJUSTABLE EASY CHAIR 0B LOUNGE.
(Application filed Mar. 8, 1899.) (No Model.) 2 Sheets-Sheet 2.
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applied for Letters Patent of Great Brit-ain ihnrrnn STATES .IOSIAII I'IARPUR SYDNEY MAY, OF BELFAST, IRELAND.
ADJUSTABLE EASY-CHAIR OR LOUNGE.
SPECIFICATION forming part of Letters Patent No. 639,076, dated December 12, 1899.
Application filed March 8, 1899. Serial No. 708,268. (No modell To all wil/071i, zit'mcty concern:
Be it known that I, JosIAH HARPUR SYD- NEY MAY, manufacturer, a subject of the Queen of Great Britain and Ireland, residing at 2 Stranmillis Park, in the city of Belfast, in the county of Antrim, Ireland, have invented certain new and useful Improvements in Easy-Chairs or Lounges, (for which I have and Ireland, dated September 16, 1898, and numbered 19,6523) and I do hereby declare the following to be a full, clear, and exact description of my invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.
My invention relates to chairs and lounges for sitting or reclining upon; and it consists, substantially, in such features of construction, arrangement, and combinations of parts as will hereinafter be more particularly described.
The primary object of my invention is to provide means for theI support of the human bodyr evenly from head to heels when sitting or reclining by the adjustment of the chair or lounge to various positions of the head, trunk, thighs, and legs independently, and to consequent changes of the posture of those parts of the body at the will of the person using the article, whereby comfort and rest are promoted.
In the accompanying drawings, Figure I is a vertical longitudinal section of a chair made in accordance with my invention. Fig. II is a front view, partly in section, the upholstering being removed, both leg-rests and one thigh-rest being entirely omitted and part of the other thigh-rest being also omitted. Fig. III is a front view, on an enlarged scale, of one thigh and one leg rest detached. Figs. IV, V,YI,VII,VIII, and IX are views of detached details on an enlarged scale.
The frame of the chair is indicated by the letters A A, representing the sides, and a ot uprights between the front and back thereof, connected bythe cross-rails C, C, C2, C3, and C4, the rail marked C secured at either end to an upright a and forming a bottom for the shallow fixed seat. The sides of the back B are connected at base and top by the crossbars B2 and B3, and the cross bar or slab B2 is connected at eachend to the adjacent upright. a by a link B, screwed or bolted at one be strengthened by side stays B4, and, if de` sired, an additional cross-bar B5 may be employed for tacking the cover to. By placing the pivot in the position indicated I center the back-rest, so that the head-rest, hereinafter described, will always be in the same relative position to the head of the person occupying the chair, whatever may be the inclination of the backrest.
Underneath the back edge of the bar or slab B2, I hinge a rack It, the other end of which passes through a slot in the vertical bar O, iXed to the cross-rail C and C. A bolt or pin b across the slot in this vertical bar O engages a notch in the rack R and holds the back-rest firmly in any required position. When a change of posture is desired, the rack R may be unlocked by the aid of a cord or chain c, attached to the free end thereof, and a spring S on each side of the chair attached at one end to a pin between the plates fm above and behind the pivot in such plate on which the link B' centers and at the-other end to a pin at the opposite eX- tremity of the link B'. Thus the person occupying the chair by pulling the cord or chain attached to the rack R maydisengage the rack, and While so disengaged with 'the aid of or controlling the springs S alter the inclination of the back-rest at pleasure, and by again dropping the rack upon a bolt or pin bsecure it when the desired position has been arrived at.
The headrest surrnounting the back-rest consists of a frame II, IAI, II, and H2, of which the sides H II may be in an elliptical form.
For adjusting the inclination of the headrest I attach it to the sides of the back-rest B by two internal metal strips 7i h, fastened withinv the sides H H and pivoted at their lower ends to the sides of the back-rest B at i i' a little below the cross-bar B3, so that the Whole head-rest may move ona center out- IOO side it and give even support to the back of the head in all positions.
In order to keep the metal strips h h clear of the stuffing of the backrest, I inc-lose the lower portion ot" each such strip 7L with a triangular casing` K, fastened within the side of the back-rest B. If it. be desired to keep the head-rest of the full width of such back-rest, I introduce blocks of wood between the metal strips 7i 7L and the sides I-l H', as shown.
The arrangement for adjusting and locking the inclinations of the other parts of the chair by dropping a rack upon a bolt or pin is unsuitable to the head-rest. The special means which I employ in the latter case are more fully illustrated in Figs. VI, VII, and VIII. For t-hese purposes I fix ablock of wood W on the top rail B3 of the back-rest B, and to this block W, I attach a latch Y by a pivot at or near to its center and preferably guided by a slotted metal plate uf on the end of the block W, and to the lower rail IL2 of the head-rest I attach a flanged rack or plate X, asshown in Fig. VII, notched on the upper side and standing out at right angles from the rail H2, so as to cross the latch Y near to the slotted metal plate w at the end of the block W. I provide the free end of the rack or plate X with a projection or stop to prevent its passing beyond the range of the latch so as to allow the head-rest to move too far forward.
To operate the latch Y, I form the end farthest from the rack or plate X, as shown in Fig. VIII, with a bend, and I pass a small spring-wire 1/ through holes in that end and through the lower extremity of a small spiral spring Z, which is suspended from the top of the cross-bar B3 and has attached to its lower extremity a cord or chain z', passing down within the side B of the back-rest through a small pulley on the cross-rail C up to the arm of the chair. Vhen the cord is pulled, with the head still leaning upon the head-rest, the springwire yv will be bent, and when the head is lifted the latch Y will be disengaged by it from the rack or plate X to enable the head-rest to be adjusted. When the cord is again released, the spring Z will restore the latch Y to one of the notches in the rack or plate X. A spring S at the back of the headrest presses against the flange x of the rack or plate X and the top bar B3 of the backrest7 so as to force the headfrest forward. This spring may be kept in position by any ordinary-well-known means usually employed for such a purpose.
The supports for each thigh and leg of the user are separate and independently adjustable. The whole framework supporting each thigh and leg is attached bya hinge or pivot p to flanges at the ends of a horizontal T- shaped plate if, which is fixed to the top of a vertical pivot P, capable of turning horizontally in borings in the cross-rails C C. The
plate t is stayed by a wooden strut if', bolted at b', its lower end to the Vertical pivot P.
The thigh-rest turns vertically on the pivot j) on the Aflanges of the plate and having its bearings on the flanges of a metalplate t2, fastened internally to the sides T T, which may be connected by a cross-rail t3 behind the pivot p. The plate t2 also serves to prevent the thigh-rest from deviating from its rectangular form. A spring S2, having a straight prolongation at each end, one of which bears against the internal metal plate t2, while the other passes through the plate t, encircles the pivot p and raises the thigh-rest and the parts connected therewith when desired. A light cross-rail t4 between the sides T T at their other ends will carry the upholstery at that end.
To support the thigh and leg rests, I construct a frame of an inverted pyramidal form underneath the thigh-rest. This frame consists at the back of a metal strap zu, bent double, with the legs diverging and secured at the upper ends, respectively, between the thighrest side T and the internal metal plate t2 by a pin or screw passing through them. The front of the frame is a tapered board or plate V, the edges of which may be of any desired riform, but preferably lying between the sides T T of the thigh-rest and having shoulders passing beneath and to the outer edge of such sides T T. A recess or perforation in the back of the board or plate V receives the bend of the metal strap t', and within this bend I place the iixed end of the rack R,the pivot of which, c, passing through the board or plate V, Secures both the bend of the metal strap and the fixed end of the rack in position. The free end of the rack R' moves in a slot in the vertical pivot P, in which a pin b engages one of the notches of the rack, and thereby locks the thigh-rest T in any desired position, while a stud at that end prevents the rack from passing out of such slot. A cord or chain and spring are attached to the free end of the rack R for unlocking it in like manner, as before described in connection with the rack R.
The leg-rest L L consists of a rectangular frame swung upon a bar or pivot d below the center thereof and working in bearings carried by a plate of metal g, turned up at each end and having the turned-up portions eX- tended like arms g g and reaching to the sides T T of the thigh-rest. The upper ends of suoli arms g g turn on pins or studs in the center of the outer ends of the thigh-rest sides T T and preferably pass through small metal plates screwed to the inner sides thereof below the cross-bar t4. At the lower end of the plate g two perforated projections g2g/2 provide bearings to ncarry the bar or pivot d, on which as a center a metal plate jj and the leg-rest swing, the metal platejj being furnished with bent ends screwed to the leg-rest sides L L internally. The top of the leg-rest should at all inclinations be capable of passing clear of the cross-rail t4 of the thigh-rest. Below the lnetal plate g are -two other pro- IDO IIO
jections g3 g3, carrying a piu c, on which two small metal plates 'r2 r2 turn and between the outer ends of these plates r2 r2 the rack R2 for locking the leg-rest in position is secured by a bolt at the end and two small screws inl the middle, providing an open space at that end of the rack R2 for the passage of the lever Z by which the leg-rest is raised vertically. The free end of the rack` R2 moves in a slot in the lower end of the board or plate V and locks the position of the legrest by engagement with the pin b2 and is unlocked by the aid of a cord or chain and spring in the same manner as the back and thigh rest racks R and R. It also is provided with a stud to prevent its passing out of such slot. Thus the leg-rest, in addition to its horizontal motion with the thigh-rest, has two independent Inotions-one vertically around the end of. the thigh-rest and locked by the rack R2 and the other a free swing on the bar or pivot (.Z. The upperend of the leverZp-asses through a slotnear the top of the` board or plate V and turns on a pin in this slot. From its short end beyond the pin depends a spring S3, which is secured at its opposite extremity by a pin fixed in the lower slot of the board or plate V a little above the rack R2, and the back of the board or plate V is recessed to receive such spring. The lower end of the lever Z travels on a roller carried by the pin c between the plates r2r2.
The arrangement which I have described of the lever Z and the spring S3, besides obviating the difficulty of placing a spring in any other position to raise the leg-rest, will give it a greater leverage when it is shorter and at the same time (the leg-rest being higher) has lnore work to do. To give the greatest benet, the upper end of the spring should be bent to one side and the short end of the lever should be bent up as much as possible to bring the fulcrum of the lever and the two points of application of the springas nearly in a line as practicable without pressing the side of the spring against the lever when the leg-rest is at the lowest position.
For the purpose of supporting the heel when necessary I provide a slide f, Fig. I, which passes through recesses in the lower cross-rail of the legrest and between the plate j and the bar or pivot CZ, small blocks of wood, screwed underneath the plate j, acting as guides. A ring may be attached to the upper part of the slide to enable the person in the chair to move it up or down.
The notches in the racks R, R, and R2 and the plate X are cut so as to hold against theA pressure of the back, thigh,leg, or head in one direction and the springs S,S2, S3, and S', respectively, in the other directions and should be made an easy Iit for the pins.
Near the lower ends of the cords o, c', and 02, attached to the racks R, R', and R2 for the purpose of disengaging them, as described, I introduce a spiral spring s, (see Fig. IX,) in each case fastened at its opposite ends to points in the cords sufficiently apart from each other to allow the spring to be stretched without overstraining it. By this arrangement it is only when the pressure of the part of the sitter upon the appropriate rest is being lifted off that the rack becomes disengaged and the spring S, S2, or Sd begins to operate.
The chair may be upholstered according to taste and with or without springs in the back and seat.
"The lines U U U U suggest the shape of the middle of each part when upholstered.
Without limiting myself to the precise details of construction and arrangement of the parts described and shown, I claim-4 l. In a chair, the combination with the seat, of a back, a head-rest and a thigh and leg support, each independently pivoted, and each provided with means to lock it in ad justed position, and with a spring normally tending to move it in direction opposite tothat in which it tends to move under the weight of the occupant of the chair, substantially as set forth.
2. In a chair, the combination of a vertical pivot P, a flanged plate t connectedto the pivot to turn therewith, a thigh-rest pivoted to the ianged plate to have vertical swinging movement thereon, a leg-rest, hinged to the thigh-rest to have independent vertical movement, racks to lock the thigh-rest and legrest independently in adjusted position, and springs acting on the thigh-rest and leg-rest independently and normally tending to swing them upwardly, substantially as described.
3. In a chair,a thigh-rest supported to swing vertically and horizontally, a frame connected to the outer end of the thigh-rest to swing horizontally therewith, and to have an independent vertical swinging movement, a legrest pivoted intermediate its ends in said frame to have a rocking movement independently of the frame, a rack to lock the frame and leg-rest in adjusted position, a pivoted.' lever Z engaging the frame at one end, and a spring S3 connected at one end to the other end of the lever, and at its other end to a fixed support, substantially as and for the purpose set forth.
4. In a chair, the combination of a thighrest, a pyramidal frame secured to its under side, a rack connected to the lower end of the frame, a locking-pin for the rack, a leg-rest having a hinge connection with the thigh-rest, a rack connected to the leg-rest, a pin in the frame to be engaged bythe last-named rack, a lever pivoted in the frame and engaging with one end of the leg-rest, and a spring connected at one end to the other end of the lever, and at its other end to said frame, substantially as set forth.
5. The combination with a thigh-rest, of a plate g having arms 'g' g' pivoted to the sides of the thigh-rest, a bar CZ supported in bearings on said plate, and a leg-rest pivoted in termediate its ends on the said bar, substam tially as set forth.
6. In a chair, the combination of the frame and fixed seat, of an inclined back having a cross-bar at its lower end, links connecting said bar and the sides of the frame to permit the inclination of the back to be changed, a rack hinged to the bar and engaging a pin on the frame, and a spring connected at one end to the side of the frame and at its other end to said bar, and normally tending to decrease the inclination of the back, substantially as set forth.
7. In a chair, the combination with an adj ust-able back-rest, of a l1ead-rest provided with depending strips 7L pivoted at their lower ends to the sides of the back-rest, casings inclosing said strips at their lower ends, a forwardly-projecting block on the upper end of the back-rest, a latch pivoted thereon and lying parallel to the back rest, a notched plate secured to the lower end of the headrest and extending transversely across the latch to be engaged thereby, a spring interposed between the lower end of the head-rest and the upper end of the back-rest and tending normally to separate them, and means to disengage the latch from the notched plate, substantially as set forth.
S. In a chair, the combination with a fixed pin and an adjustable part of said chair, of a rack hinged at one end to the adjustable part and adapted to engage the said pin, a cord connected to the rack and operative to lift it out of engagement with the pin, and a spring s interposed in said cord, substantially as and for the purpose set forth.
In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.
JOSIAII HARPUR SYDNEY MAY.
HUGH HYNDMAN, HUGH RoDDY.