US198612A - Improvement in swings - Google Patents
Improvement in swings Download PDFInfo
- Publication number
- US198612A US198612A US198612DA US198612A US 198612 A US198612 A US 198612A US 198612D A US198612D A US 198612DA US 198612 A US198612 A US 198612A
- Authority
- US
- United States
- Prior art keywords
- swing
- lever
- swings
- improvement
- arms
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000002965 rope Substances 0.000 description 4
- 230000000994 depressed Effects 0.000 description 2
Images
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63G—MERRY-GO-ROUNDS; SWINGS; ROCKING-HORSES; CHUTES; SWITCHBACKS; SIMILAR DEVICES FOR PUBLIC AMUSEMENT
- A63G9/00—Swings
- A63G9/16—Driving mechanisms, such as ropes, gear, belt, motor drive
Definitions
- the seat A is suspended in the frame between the standards B from arock-shaft, C,
- the seat-frame is of such form that it affords a support for the back f, for the seat g, and for the foot-board h.
- a secure and safe seat for young children is thus provided, in
Landscapes
- Electrophonic Musical Instruments (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Toys (AREA)
Description
UNITED STATES PATENT OFFICE.
CHRISTIAN HARTMAN AND FREDERICH A. FREESE, OF SAN FRANCISCO,
CALIFORNIA.
Specification forming part of Letters Patent No. 198,612, dated December 25, 1877 application filed i July 5, 1877'.
To all whom it may concern:
Be it known that we, CHRISTIAN HARTMAN and FREDERICK A. FREEsE, both of the city and county of San Francisco, State of California, have invented a certain new and useswing and operate it without assistance.
The seat A is suspended in the frame between the standards B from arock-shaft, C,
which turns in bearin gs in the uprights. From this rock-shaft two perpendicular arms, D D, project, which occupy a horizontal position when the swing is at rest, and these arms are connected with thedouble rocking lever E by means of the links 61 d, that are pivoted at b and c. The lever E has its fulcrum at a, and the cords F F, attached to its ends, afford the means for operating it.
The seat-frame is of such form that it affords a support for the back f, for the seat g, and for the foot-board h. A secure and safe seat for young children is thus provided, in
which they can swing themselves without danger, as no excessive oscillation can be given by them in pulling upon the cords.
We are aware of the patent granted to John F. Hartman, April 10, 1866; but as the same has but a single seat, and a lever-arm upon only one side, and is operated by a positive motion in only one direction of its oscillation, we disclaim the same. Our swing having the lever-arms D D upon each side, by the application of force to either one or both of the ropes F, a positive motion isgiven to each of the lever-arms, one being raised and the other depressed positively, and thereby the swing is operated with less power by a child, and the oscillation is more steady.
Having thus fully described our invention, what we claim therein as new, and desire to secure by Letters Patent, is-
In a swing, the combination, with the supporting-frame and the rock-shaft, of the arms .D D, the lever E the links 01 d, and the ropes F F, by means of which a positive motion is given to a swing in each direction of its oscillation, substantially as described.
In testimony that we claim the foregoing we have hereunto set our hands this 28th day of May, 1877. CHRISTIAN HARTMAN.
FREDERIOH A. FREESE. Y Witnesses: WILLIAM HARNEY, HARRY CoUsINs.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US198612A true US198612A (en) | 1877-12-25 |
Family
ID=2268019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US198612D Expired - Lifetime US198612A (en) | Improvement in swings |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US198612A (en) |
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0
- US US198612D patent/US198612A/en not_active Expired - Lifetime
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