US 901090 A
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Description (OCR text may contain errors)
e. G. FREY.
1 ROTARY BOOKING GHAIR. APPLIOATIGH FILED SEPT.1B, 1907.
Patentedoct. 13, 1908. 2 SHEBTSSHEET 1.
INVENTOR WITNESSES ATTORNEYS THE uoams PETERS co., wasnmarorv, n c
G. G. FREY.
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GUSTAVE Gr. IBEY, OF FLOYD, NEW YORK.
Specification ofLetters Patent.
Patented Oct. 13, 1908.
Application filed September 18, 1907. Serial No. 393,500.
To all whom it may concern:
Be it known that I, GUsTAvE G. FREY, of Floyd, in the county of Oneida and State of New York, have invented certain new and useful Improvements in Rotary Rocking- Ohairs and I do hereby declare that the following is a full, clear, and exact description thereof, which 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 part of this specification.
The object of my invention is to provide a rotary rocking chair, which is simple and eflicient in its mechanical features and well adapted to carry out the purpose for which it is intended.
Figure 1 shows a side elevation of the chair in what may be termed its normal position, with a portion of the back, however, eliminated to reduce the size of the figure. Fig. 2 shows a front elevation of the same. Fig. 3 is a side elevation of the chair rocked or turned on the vertical pivot with reference to its base, with the mechanism in the position which it then assumes; Fig. 4 is a partial plan view of the base. Fig. 5 is a detail side viewshowing the tubular bearing for the central vertical pivot of the chair and the posts to which the pedals are connected. Fig. 6 is a detail front view of the central arm, on which the pedals are mounted, and its connected parts. Fig. 7 is a detail view showing portions of the toothed rack-bar and of the hand-lever cooperating therewith. Figs. 8 and 9 are detail front and side views, respectively, of the said hand-lever. Fig; 10 is a detail plan view of one of the pedals. Fig. 11 is a detail view to show the stops by which the movements of the edal arms are limited. Fig. 12 is a detail side view of the central arm, on which the pedals are mounted, and Fig. 13 is a detail side view of one of the pedals and its attached operating arm.
Referring to the reference letters and figures in a more particular description, 1 indicates a base consisting preferably of cross bars 1", 1 having secured on the top a casting providing a vertical tubular bearing 2, centrally located on the base, and posts 3, 3. The seat 4 is mounted by means of a spider frame 5 upon a vertical pivot preferably formed integral with the spider and received in the vertical bearing 2 of the base in such manner as to rotate freely around a vertical axis. Centrally located on the front of the chair is a swinging arm 6 pivoted to a bracket 7 on the underside of the seat and provided with an extension 6, which is also provided with an arm 6 and a pivot 6 for engaging in another bearing or hanger provided on the seat at the edge. The arm 6 may be provided with a segment containing a series of holes as shown, and the same is adapted to receive a hand lever 9 by means of which the arm 6 can be swung into its extended position or folded under the seat. In order to secure these parts in any desired position of adjustment, there will be provided on one side of the seat frame a segment of toothed rack 10, having catch teeth, as shown at 10 adapted to receive a tooth 9 provided on the hand lever 9. The relation of the lever 9 to the swinging arm-6 may be changed by shifting the position of the bolt which secures the lever 9 to the part 6 into one of several of the holes in the segment before referred to. The arm 6 is provided at its lower swinging end with a pair of oppositely extending conical pivots 12, which receive the pedals 13, the same being provided at one end with a conical sleeve or bearing box 13 adapted to receive the pivots 12. The pedals are provided with an angularly-arranged arm 14, which extends in a general upward direction, and are connected at their upper swinging ends by chains or flexible connections 15 with the tops of the posts 3 before mentioned provided on the base. In order to limit the downward swinging movement of the pedals 13, there is provided on the arm 6 a pair of stops 16 against which the pedal arms 14 are adapted to strike.
As the seat rocks or swings to either side of its normal stationary position, the chains 15 in passing from the post 3 to the pedal arms 14 are liable to pass so close to the pivotal bearing that pressure on the pedals would have little or no effect in turning the chair on' the pivot. In other words, would be practically on the dead center. To avoid trouble from this source, there is provided on the rear of the chair a spring 17 attached at one end to the rear of the seat and at the other end to a spring hanger 18. This hanger is pivoted at 19 to the rear lower portion of the bearing 2 and has a limited swmging movement between stops 20. As the seat is rotated with reference to the base, a considerable freedom of movement is allowed without bringing into action the spring 17,
by reason of the vibration of the spring hanger 18 allowed between the shoulders 20. As the seat swings further around, however, with reference to the base, towards a point where draft on the chains would become ineffective, to start the chair in the reversed direction, the spring 17 is placed under tension and the re-action of the spring 17 assists materially in starting the chair in a reversal of the swinging movement.
It is obvious that the occupant of the chair, when the pedals are in extended position, may rock the chair on its vertical pivot, first in one direction and then in the other, by pressing alternately on the pedals 13. When, as before stated, the connections 15 are passing close to the pivot, the operator will be assisted by the spring 17 in rotating or rocking the chair so as to swing it back and forth horizontally on its central vertical pivot, and the chair seat will, in the absence of the application of other power, be brought into a normal position substantially to the front of the base by the action of the spring 17 In order to allow the occupant readily to enter or leave the chair, the pedals 13 may be folded or swung inward out of the way, as shown by dotted lines in Fig. 1,, by operating the lever handle 9 in an obvious manner. In order to support the pedals in their folded position in a substantial way, there is provided on the front of the base a semi-circular rail or track 21, on which the pedals are adapted to rest when in folded position.
It is obvious that numerous changes and modifications in and from the construction herein described may be made without departing from the spirit of my invention.
What I claim as new and desire to secure by Letters Patent is:
1. The combination, in a chair, of a base, a seat mounted on said base by means of a vertical pivot centrally arranged beneath said seat, pedals supported from the said seat, and connections from the pedals to the said base, whereby the occupant is enabled to rock or swing the said seat back and forth horizontally on the said pivot by alternately operating the said pedals, substantially as set forth.
2. The combination, in a chair, of a base, a seat mounted on said base by means of a vertical pivot centrally disposed beneath said seat, pedals supported from the said seat, connections from the pedals to the said base, and a spring connection between the said sea t and base, whereby the occupant, with the aid of said spring connection, is enabled to rock or swing the said seat back and forth horizontally on the said pivot by operating the said pedals, substantially as set forth.
3. The combination, in a chair, of a base, a seat mounted on said base by means of a vertical pivot centrally arranged beneath said seat, pedals supported from the front of the seat, connections from the pedals to the base whereby the occupant is enabled to rock or swing the said seat back and forth in the said pivot by operating the said pedals, and means for folding the pedals under the seat and extending them to operative. position, substantially set forth.
4. The combination, in a chair, of a base, a seat mounted on said base by means of a. vertical pivot centrally arranged beneath said seat, pivoted pedals supported from the said seat in a position to be conveniently reached by the occupants feet and having upwardly extending arms, and connections from the respective arms of the said pedals to points on the base, at opposite sides of the seat pivot, substantially as set forth.
In witness whereof, I have affixed my signature, in presence of two witnesses, this 12th day of Sept, 1907.
GUSTAV E G. FREY.
WM. E. R1012, JOHN TARZ.