|Publication number||US1060590 A|
|Publication date||May 6, 1913|
|Filing date||Sep 12, 1912|
|Priority date||Sep 12, 1912|
|Publication number||US 1060590 A, US 1060590A, US-A-1060590, US1060590 A, US1060590A|
|Inventors||William J Donnenwerth|
|Original Assignee||William J Donnenwerth|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (4), Classifications (2)|
|External Links: USPTO, USPTO Assignment, Espacenet|
W. J. DONNENWERTH.
APPLICATION FILED SEPT. 12, 1912.
1,060,590. Patented May 6, 1913.
I I W nv ntor Attorneys barre-n sane ATENT FFECE.
WILLIAM J. DONNENWEBTH, '01? CHARITON, IOWA.
Specification of Letters Patent.
Patented May 6, 1913.
Applicatipn filed September 12, 1912. Serial No. 720,071.
To all whom it may concern:
Be it known that I, WILLIAM J. DONNEN- WERTH, a citizen of the United States, residfication.
The present invention relates to improve- I tween and beyond the inclined supports 5 ments in see-saws.
The primary object of the present inven- 3 tion is the provision of a novel arrangement and supporting medium for 1a see-saw, whereby a single person may operate the same, the board being so disposed as to have the counter-balancing effect of the second person taken care of by a resilient support, said resilient support being so disposed as to be readily adjusted relatively to the swinging board and thus accommodate persons of varying weights.
With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.
In the drawings-Figure 1 is a perspective view of the complete apparatus, Fig. 2 is a section taken through the board and adjacent portion near the resiliently supported end thereof.
Referring to the drawings, the numeral 1 designates the two supporting plates or boards which are disposed at an incline to each other and at thelr converging ends are connected together by means of the upright post 2, while their divergin ends are connected together by means 0% the brace 3.
The inclined braces 4 are connected to the base plate 1 and to the opposite sides of the post 2 so as to brace the board, while connected to the base plate 1 near the diverging ends thereof are the two upwardly extended and inclined posts 5, which are bridged at their upper end with the cross head 6. The posts 5 are braced by the respective pairs of inclined braces 7 and 8 whose lower ends are connected to the base plate 1, the braces 7 being connected upon the outer side thereof, While the braces 8 are connected upon the inner side thereof. By this means the supporting structure is made rigid, yet by reason of the fact that the different connections are made by bolts, the same may be readily knocked-down for transportation.
Secured to the post 2 near the upper end thereof and upon the face adjacent to the supports 5 by means of a plurality of hinges 9, is the see saw or swinging member 10,
which is of such a length as to extend beso as to present the seat portion 11 thereof between the outer free ends of the plates 1, so that the occupant thereof sitting upon or straddling the seat 11 will have the feet presented to the ground between the supporting plates 1 and thus provide ample space for the manipulation of the see-saw.
Carried by the see-saw or swinging member 10 beyond the support 5 is a strip 12 carrying the two hand grips 13, said hand grips 13 being disposed in ready access to the occupant of the swinging member when seated upon the seat 11 thereof.
In order to provide a counter-balancing means for the weight of the person seated upon the seat 11 of the swinging member 10, and thus assist in the elevation of said swinging end and also to provide a cushioned descension to the free end, two hooks 14.- are connected to the under side of the cross piece 6 and have connected thereto the upper terminals of the two coiled springs 15, the lower terminals of said coiled springs 15 being connected to the bridging member of the bail 16, the lower terminals of the bail 16 being pivot-ally connected by means of the pins .17 to the outer ends of the cross piece 18. This cross piece 18 as shown, is disposed to rest below the swinging member 10 and by reason of the fact that it is not rigidly or fixedly connected to the swinging member 10, the same may be adjustedor slid relatively to the hinges 9 to thus provide a means for accommodating persons of various weights upon the seat 11, the distance erking motion that might tend to occupant from the seat 11.
It is evident that the present device may be provided with a canopy or sun-shade which will be properly supported from the su orts 5.
at is claimed is:
1.' A see-saw, having a swinging member hingedly connected at one end, and pro vided with a seat upon the free end, of a rethrow the silient supporting medium for the free end thereof removably attachedto the free end of the swinging member to compensate for various weights upon the free end of the swinging member.
2. A see-saw, comprising a supporting base, a swinging member hlngedly connected at one end and carried by the base, the free end constituting a seat, a cross piece adjustably mounted below'the free end of the swinging member, a resilient connection for supportmg said cross piece, and means carried by the base for supporting said resilient connection. v
'3. A see-saw, comprising a base, a swing ing member hinged at one end to the base, a seat and hand gripcarried uponthe free end thereof, a bail having a cross iece removably surrounding the free en of the swinging member, and a resilient support for said bail.
In testimony that I claim the foregoing as w my own, I have hereto aflixed my signature in the presence of two witnesses.
WILLIAM J. DQNNENWERTH. Witnesses:
' B'. E. WILLIAMSON,
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