US394229A

US394229A - Chair-fan

Info

Publication number: US394229A
Authority: US
Publication date: 1888-12-11
Anticipated expiration: 1905-12-11

Description

(No Model.) 2 Sheets-$heet 2. G. B. ULRIGHS.

CHAIR FAN.

No. 394,229. Patented Dec. 11, 1888.

ATTORNEYS,

N. Perms Pnmumu mpnmwnmn no UNTTED' STATES GEORG BERNHARD ULRICHS,

PATENT OFFICE.

OF HOBOKEN, NEXV JERSEY.

CHAIR-FAN.

SPECIFICATION forming part of Letters Patent No. 394,229, dated December 11, 1888.

Application filed April 30, 1888. Serial No. 272,307. (No model.)

T 0 (0 whom it may concern:

Be it known that I, GEORG BERNHARD UL- RICHS, a resident of l-loboken, Hudson county, New Jersey, have invented an Improved Chair-Fan, of which the following is a specification.

The object of my invention is to provide a fan-operatin mechanism for attachmei'it to a chair, which mechanism and fan will be actuated by the weight of a person sitting in the chair.

The invention consists in the details of improvement and the combinations of parts that will be more fully hereinafter set forth.

Reference is to be had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a side elevation of a chair provided with my improvements. Fig. 2 is a horizontal sectional view of the same on the line 0 c, Fig. i. Fig. 3 is a vertical cross-section enlarged, taken on the line 7t 7t, Fig. 1, through a portion of the fan-operating mechanism. Fig. 4 is a similar view of amodifica- ,tion. 5 is a horizontal longitudinal secthe side of the chair opposite that shown in Fig. 1.

In the accompanying drawings, the letter A represents a chair, which may be of suitable construction.

Bis the seat of the chair, which is vertically movable, and is preferably hinged to the chair at one side, as at a, or pivoted in or near the middle.

I) is a leaf hinged to one of the side rails, W, of the cl1airbottom, as shown in Fig. 6. The leaf 19 carries a lever, (7, that is jointed to a pendent arm, 6, which is supported by a lever, g, as hereinafter described.

f is a leaf similar to the leaf 1), and hinged to a rail, b opposite to the leaf 1). The free end of the leaf f rests upon the lever (Z; but the leaf f may be dispensed with, if desired. The chair-seat B rests upon the leaf 1'), and when weighted acts to depress the lever 61; but, if preferred, the lever 67, or even the arm t 6, could be secured directly to the swinging seat B and both leaves I) and f dispensed with.

The lower end of the arm 6 rests upon a lever, 9, that is pivoted to the chair-leg 1. or to a projection, 71, thereon. The upper edge of the lever g is preferably notched, as shown, to receive the end of the arm c. The chairleg '2' carries another lug, j, having a pin, 7, that passes through a slot in a lever, on, which lever on. carries a pin, 11, that projects through a slot in the lever g, as clearly shown in Fig. 5; but the pin 72 may be attached to the lever g and pass through a slot in the lever in, and in like manner the pin 1 may be attached to the lever on and pass through a slot in the lug j. ly this means, as the lever g is depressed by the seat 13 actin through the lever (Z and arm 0, the lever at will also be depressed and at the same time permitted longitudinal movement. m. is a spring secured to the lever m and at its opposite end to the chair A, which spring acts to elevate the lever m.

To the free end of the lever in is pivotally secured a vertical rack, p, which is guided on a post or vertical rod, q, that is securely held in the chair, as shown in Fig. l. The most convenient manner of guiding the rack p is by securing it to a tube, 0, that embraces the rod q.

The rack p meshes with a pinion, 7', that is loose on a shaft, 8, which shaft is carried by a box, 2, secured to one of the chair-legs, as u. Secured to the pinion r is a ratchet-wheel, 4-, that is engaged by a pawl, it, carried by a toothed wheel, .73, rigidly secured to the shafts.

The gear-wheel a; meshes with a pinion, y, secured to a shaft, .2, that is j ournaled at one end in the box 1, and at its opposite end in a similar box, (1 that is carried by the chairleg (P.

e is a gear-wheel that is carried by the shaft .2, and that meshes with a gear-wheel, f that is carried by an upright shaft, g which is journaled on a plate, 71 that lies along the side of the box a and is held there by the shaft 2. The gear-wheel f passes through a slot in the plate 7L2, and also through an open ing in the side of the box a as clearly shown in Fig. 7. The shaft 9 is secured to a vertical shaft, W, by a connecting-sleeve, i on the upper end of which shaft 1' is secured the fan D, which is of such construction as to deliver air when rotating; but the shafts g and i could be in one-piece, if desired.

The fan D is adapted to be moved toward and from the occupant of the chair around the pivot Z of the plate 72 and for the purpose of guiding and steadying its shaft 1 I provide a slotted guide-rail, 9' which is secured to the chair-frame. The guide-rail f has a longitudinal slot, in which a sliding block, Z is received. This block Z carries a spring, m that bears upon the guide-rail j so as to hold the block Z in the desired position. The shaft 2' passes through an aperture in the block Z and through a small block or plate, 0 that is swiveled in said aperture. WVith this construction, as the block 1 is moved along the guide-railj the plate 0 will turn on its pivot, so that the shaft 2' will be free to turn in its bearings in all its positions. As the block Z is moved along the guide-rail 7' the shaft 2' will turn the plate 71 on its pivot Z to follow the direction of the shaft. As the plate 7L2 thus turns, the wheels 6 f will still remain in gear.

My improved chair-fan operates as follows: Supposing the rack p to be elevated and the swinging seat B to rest upon the leaves b f, a person now sit-s down upon the seat B. His weight, acting upon the sleeve 0 and rack 19 through the lever (Z, arm 6, and levers g m, depresses the rack p. As the rack 13 descends, it turns the pinion r, and thereby the wheel 56, pinion 3 shaft .2, and wheels 6 f shafts 9 2 and thereby the fan D. hen the rack has reached its lowest point, or at any other time, and the occupant of the chair rises or removes his weight from the arm 6, the spring 171 acting on the lever m, elevates the rack 1), ready to again descend, the ratchet-wheel c an d pawl 10 permitting the pinion r to turn as the rack rises without turning the wheel 00. As the rack 19 and sleeve 0 descend in a straight line on the rod q, the lever on must necessarily advance, which movement is permitted by the pins Z a passing through the slots in the levers g m, as heretofore described.

In the modification shown in Fig. 4 the pinion -7" is rigid with the wheel a, and the ratchet v and pawl w are dispensed with. With this construction the weight on the seat B will act to turn the fan D through the connected gearing in one direction, while the spring at, when the weight is removed from the seat, will act to raise the rack 19, and thereby turn the pinion 0, wheel at, and connected gearing in the reverse direction, thereby also turning the fan D. Thus the fan is turned in what ever direction the rack p moves.

It is evident that the fan D and the parts connecting it with the shaft 2 could be on the same side of the chair as the rack p, or

it could be on any other side of the chair desired.

The arm 6 may rest directly on the lever m,

in which case the lever g could be dispensed with, one pivotal connection of the lever m being slotted.

Having now described my invention, whatI claim is 1. The combination, with a movable chairseat, of the arm e, depending from said seat, lever m below the seat, means, substantially as described, for connecting the arm 6 with the lever m, rack 12, pivotally carried by the lever m, a guide for said rack, pinion 1" in gear with said rack, gear-wheel 0c, driven by the pinion r, and the fan D, geared with said wheel x, substantially as described.

2. The combination, with a movable chairseat, of the arm 6, depending from said seat, levers m and g, having a pin and slot, respectively, to receive said pin, rack 10, carried by the lever m a guide for said rack, pinion 1' in gear with said rack, gear-wheel 0c, driven by the pinion r, engaging gear-wheel 0c, shaft 2, carrying pinion y, gear-wheels e f shaft 2' driven by the wheel f and fan D, carried by the shaft i substantially as described.

3. The combination, with the chair and its seat, of the arm e, lever g, lever m, having pin '11, rack p, pin Z, and rod q, for guiding said rack, the lever g having a slot that receives the pin 'n, and the lever on having a slot that receives the pin Z, carried by the chair-leg, all for converting the reciprocating motion of the seat into rectilinear reciprocating motion of the rack", substantially as described.

4. The shaft z and gear-wheel e thereon, combined with'the swiveled plate 7L2, that is hung 011 the shaft 2, gear-wheel f hung in the plat-e h and engaging the wheel e shaft 2 driven by the wheel f and fan D, carried by the shaft 1' substantially as described.

5. The shaft 2', swiveled plate 77?, hung thereon, gear-wheel 6 carried by said shaft, gear-wheel f hung in the plate h and shaft 1 connected with the wheel f combined with the slotted guide-rail 3' block Z in said slot, and block 0 swiveled in the block Z the shaft 1' passing through the block 0 substantially as described.

6. The chair-seat B, combined with the arm e, depending from said seat, levers m g, having a pin and a slot, respectively, to receive said pin, rack 13, carried by the lever m, a guide for said rack, fan D, and intermediate mechanism, substantially as described, between the rack 19 and said fan D, substantially as herein described, for turning said fan by meansof said rack, and with the spring m, for raising said rack as soon as the weight of the occupant of the chair is removed from the arm 6, substantially as herein shown and described.

GEORG BERNHARD ULRIOHS Witnesses:

T. F. BOURNE, CHARLES G. M. THOMAS.