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Publication numberUS757447 A
Publication typeGrant
Publication dateApr 19, 1904
Filing dateMar 2, 1903
Priority dateMar 2, 1903
Publication numberUS 757447 A, US 757447A, US-A-757447, US757447 A, US757447A
InventorsMax Friedland
Original AssigneeMax Friedland
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Rocking-chair with air apparatus.
US 757447 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

4 0 9 1 9 1 R P A D E T N E T A P N A D E I R M 7 4 7 5 7 o N ROCKING CHAIR WITH AIR APPARATUS.

APPLIOATION 2mm ma. 2, 190a.

' z sums-sum 1.


I/VVE/VTOR, Max IrieaZZand,

Yaumo WASHXNGTO .7 A J o A Va 0 a 7 A Q a, 7 .r w m i 7 I s A A F 2 w, w m A No. 757,447. I I PATBNIED APR. 19, 1904.


ROCKING CHAIR WITH AIR APPARATUS. Arrmou'ion rum) M114, 1903. V y

no MODEL. 2 sums-sum 2.

W/ 7NfSSf8: 1 IN VE/YTOR 777% Max Frz'edZ nd,

" portion of the base thereof, showing the at- .with air-pumps and fans constructed in accordance w1th my lnvention.

Patented April 19, 1904. A




SPECIFICATION forming part of Letters Patent No. 757,447, dated April 19, 1904. Application filed March 2, 1903; Serial No. 145,853. (No model.)

To all whom it may concern:

Be it known that I, MAX FRIEDLAND, a subject of the Emperor of Germany, residingat Kansas City, in the county of Jackson and State of Missouri, have invented new and useful Improvements in Pneumatic Rocking- Chairs, of which the following is a specification.

My invention relates to rocking-chairs with" attached fans and pumps, the pumps being operated by rocking the chair and the fans being operated by air compressed by said pumps.

The object of my invention is to provide a rocking-chair which will automatically supply a breeze to the occupant of the chair while the chair is in motion.

Referring now to the accompanying drawings, Figure 1 is a side elevation of a chair Fig. 2 is a vertical sectional View of the pumps and the airreservoir, the chair being removed. Fig. 3 is a plan view of one of the rods connecting the rockers to the pumps. Fig. 4 is an enlarged section of one of the rockers and the upper tachments for one of the three-jointed hinges. Fig. 5 is a plan view of the base and its included parts, also showing in section the back legs of the chair with their connections to the air-reservoir, said legs being sectioned on line a 50f Fig. 1 above the seat of the chair. Fig. 6 illustrates the back of the chair in front elevation andthe seat in perspective. Fig. 7 is an enlarged central section of one of the fans and its housing. Fig. 8 is one of the two frames of equal dimension adapted to hold a sheet of rubber, the outer edges of which are placed between them and when in position forms the top of the air-reservoir.

As, a brief general description it may be stated that the frame of the back of the chair comprises two upright tubes 32, the lower portions of which form the back legs of the chair, and tubes 32 serve to conduct air from an air-reservoir 12 to the respective fan-housings 36 and 47. Of the stationary base, 2 represents the front and back, and 3 represents the sides. Secured to the top of each side 3 is a longitudinally-grooved metal bar 4, the groove of which is V-shaped, but comparatively shallow. Fitted to the bottom of each rocker 5 is a metal runner 6, having a V-shaped edge, the bottom 7 of which rests in the groove of the bar 4, as

shown in Fig. 4. The angle. of the runners 6 being less than that of said grooves, the chair will rock with very little friction, as the sides from each stub 8 is a toggle-arm 9, to the lower end of which is pivotally connected a similar toggle-arm 10, the rear end of which is pivotally connected to the side 3 of the base.

Within the base 2 3 is an air-reservoir 12, the longer sides of which are formed by two upright wooden plates 13, set transversely and having their ends secured air-tightly to the sides 3 of the base. The top of said reservoir is formed by a sheet of rubber 14, the edges of which are clamped between two frames 15 and 16, designating the upper and the lower frame, respectively. The lower frame 16is secured air-tightly to the tops of the walls 13 of the reservoir and just within the sides 3 of the base. In the complete chair the rubber top 14 is protected by an invertedtrough-shaped shield 17, made of sheet-brass,

and the ends of said shield may be closed up by semicircular plates 17 K Hinged by leather strips 18 to the respective front and back of the top frame 15 are two movable plates 19, the outer edges of which are connected to bottom board 20 by flexible material 21, preferably leather. Thus the plates 19 form the tops of bellows or air-pumps, which are connected to the resand rods the rocking of the chair will alternately lift and depress the top plates 19 and air will be drawn into the air-pumps and forced into the air-reservoir 12. Communicating with said reservoir 12 are two short metallic tubes 5 b, which pass through the aforesaid frames 15 16 at c 0. Connected to these tubes are two rubber tubes 31, which are connected to the respective tubes 32 of the back of the chair, The upper ends of tubes 32 are closed, and connected to right-hand tube 32 is a tubular bracket 33 34 35. her 33 is rigidly attached to said tube 32. The intermediate member 34 is pivotally connected to the rigid member 33, and the outer member 35 is pivotally connected to the intermediate member 34 and is rigidly connected to a drum or housing 36, preferably about ten inches in diameter. The side ofsaid housing to which the bracket member 35 is connected will be hereinafter termed the back head and the opposite side the front head. The front head 37 is detachable from the body of the housing and is perforated with small holes 38, as shown. Cast in a central boss 39, integral with back head of the housing 36, is a stub-shaft 40, on which is mounted a hub 41, held thereon by a collar 42. Secured to this hub 41 are (say) four sheet-metal blades 43,

which are set obliquely, so that when a jet of air enters the housing through the bracket 33 34 35 said blades will be revolved thereby and will partially retard the current of air that will issue-through the perforations 38 in the front head 37. Rigidly secured to the left-hand tube 32 is a member 45 of a twopart tubular bracket 45 46. The movable member 46 is pivotally connected to the rigid member 45 and is rigidly connected to the back head of a housing 47, the construction of which is the same as that described and illustrated in Fig. 7 and which contains a similar set of revoluble blades.

The construction of the housings 36 and 47 may be modified as to certain details without departing from the spirit of my invention. By means of their supporting-brackets these housings may be adjusted in many different positions with relation to the occupant of the chair.

Connected to one of the back-frame tubes 32 is a waste-cock 48, which when opened will permit the air supplied by the pumps to escape into the atmosphere if it be desired to rock thev chair without creating any breeze through the housings 36 47. The back 49 of the chair may be made of a single sheet of leather or it may be composed of two sheets of leather sewed together all around and made air-tight within the seams. Ifit is constructed double, it will be provided with a stem 50, within which is a check-valve like the valves which are attached to pneumatic vehicle-tires. The back may then be inflated with air by connecting one of the rubber tubes 31 to its stem Mem- 50 and rocking the chair to operate the airpumps. If necessary, the other rubber tube 31 might be detached also from its leg 32 and held closed during the inflation of the back 49. Secured to the lower round 03 and the upper segmental round a of the chair-back (seen at Fig. 6) and also to the inner vertical rounds F are brackets G, the object of these being to hold the back of the chair in position.

- The seat 51 is made of leather or similar material, and if the seat-frame is composed of metal tubing, as shown, the seat will be attached thereto by means of springy hooks 52,

, the inner ends of which are strongly secured to the edge of the seat. This seat may be made double, so that it may be inflated with air to" make it act like a cushion. 53 designates a valve-stem which is attached thereto for connection of one of the rubber tubes 31.

The operation of the chair will be readily understood from the preceding description and has been described therein excepting the action of the rubber top 14 of the air-reservoir. The function of said rubber top is to maintain a current of air through the housings 36 47 at the times when neither of the air-pumps is being compressed by the rocking of the chair. When'either air-pump is compressed or depressed,the rubber top 14 will be stretched and will bulge out, as indicated by dotted arched line in Fig. 2. At the end of an up or down stroke of either pump this rubber top will tend to resume its flat position, and by its elasticity it will expel a portion of the air within the air-reservoir through the tubes 31, &c., and through the housings 36 and 47.

Having now fully described my invention, what I claim as new, and desire to secure by Letters Patent of the United States,'is

The combination, with a rocking-chair having a stationary base, of a bottom board secured within the base, two air-pumps, an air- I reservoir between said pumps, ports connecting said pumps to said reservoir, said reservoir being provided with an elastic top, two rods connecting the rockers, arms operatively connecting the rods to the pumps, metallic tubes forming the frame of the back of the chair, flexible tubes connecting said reservoir to said metallic tubes, brackets secured to said metalthe presence of two witnesses.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US7364229 *Jun 30, 2005Apr 29, 2008Hwang-Pao LeeAutomatic ventilation device for chair
Cooperative ClassificationA47C7/72