US191683A - Improvement in swings - Google Patents

Description

' 'J. J. JANEZECK.

SWING.

No. 191,683. Patented June 5,1877.

N-FETERS, FHOTO-LITHOGRAPHER. WASHINGTON. U. C.

' tained in motion by the occupant; and it con- JOHN J. JAN EZ EOK, OF WASHINGTON,

OF ON E-HALF HIS RIGHT TO WM.

PATENT OFFICE.

H. FAULKNER, OF SAME PLACE.

IMPROVEMENT IN SWINGS.

Specification forming part of Letters Patent No. 191,683,

dated June 5, 1877 application filed May 12, 1877.

To all whom it may concern Be it known that I, JOHN J. JANEZECK, of Washington, in the county of Washington and District of Columbia, have invented certain new and useful Improvements in Swings; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to improvements in that class of swings which are set and mainsists in the construction and arrangement of the various parts, as hereinafter described and claimed, whereby the swing may be readily adjusted for the use of a child or adult, being worked with the greatest ease by a gentle pulling and pushing motion, alternately, thus furnishin g a graceful and wholesome exercise similar to rowing.

Figure 1 is a perspective view of my improved swing; and Fig. 2 is a vertical side elevation of the same, partly in section.

The supporting-frame of the swing consists of two standards, A A, resting upon a quadrangular foundation-frame, and connected at the top by a cross-beam, B, suitable braces being provided to insure strength. 0 O are the hanging rods, two on each side, which are suspended in any appropriate and safe manner from the cross-beam B, so that the inner or rear rods 0 are attached in front of the outer or forward rods 0, the two rods on each side thus crossing each other near their upper ends. These hanging'rods support the chair D, which is secured to their lower ends by suitable pivot-bolts. Motion is imparted to the chair D by means of the levers e g and links f h on each side, the rear hanging rods 0 also acting as additional levers. The levers e and g are pivoted, at or near their lower ends, to the chair-frame, and are connected by the link f, the lever g being also connected with the rear hanging rod or lever G by means of the link h. A hand-bar, t, extends across the front of the chair from the upper end of the lever g on one side to the corresponding lever on the opposite side,

and a foot-bar, It, extends from the forward end of the link fto a like point on the opposite link.

In starting the swing, the occupant should pull gently on the hand-bar i, at the same time pressing with the feet upon the foot-bar is, thus securing the benefits of adouble leverage, which throws the upper end of the lever g backward, its lower end moving forward, assisted by the pressure of the feet upon the foot-bar k, and carrying with it the linkfand lever 0, attached thereto, so as to force backward the chair D. As the chair returns to a perpendicular position the occupant pushes on the. hand-bar i and slacks the pressure on the foot-bar It, thus forcing forward the upper end of the lever g, which carries its lower end backward, drawing with it the link fand upper end of the lever 6, so as to carry the chair forward.

By means of the link It, connecting the lever g with the rear hanging rod U, the latter is also converted into a lever, as before stated, and the leverage is thus distributed throughout the chair-frame, producing a steady and equable motion, and preventing any undue strain. This effect is further increased by the manner of crossing the hanging rods 0 0 near their upper ends, and by the employment of the cross brace m, connecting the two rear rods or levers C, which construction allows the hanging rods a wide range of oscillation without danger of their snapping or straining, and without liability to jar in the back and forward motion of the chair.

Thus by alternately pulling and pushing upon the hand-bar 21. together with a slight pressure of the feet upon the foot-bar k as the chair recedes, the swing may be easily maintained in motion by the occupant without requiring any unusual exertion, and causing much less fatigue than that involved in rowing a boat, which exercise it resembles. By applying the power in a direction contrary to that required for the purpose of operating the swing, the hand-bar iand attached levers will act as brakes to suspend its oscillation.

The swing, constructed as described, is capable of ready adjustment to meet the wants of children or adults using it, the various levers, bars, and rods employed in its propul- DISTRIOT OF COLUMBIA, ASSIGNOR sion being provided with suitable holes or re- I cesses, by which they may be arranged and pivoted with relation to each other, so as to increase or diminish the leverage to suit the weight and power of the occupant. As the chair, when at rest, is only a few inches from the ground, easy access is aii'orded for children, and the hand-bar, properly arranged in place, will prevent them from falling out when the swing is in motion.

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

The combination, with the frame A B and. hanging rods 0 O, crossed near their tops, and connected by the brace m, of the chair D,

provided with the levers e g, linksf h, and bars JOHN J. JANEZEGK.

Witnesses:

A. DE MOWBRAY, CHARLES P. WEBSTER.

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