US1317231A - Seesaw - Google Patents

Description

F. E. SMITH.-

SEESAW.

APPLICATION FILED MAR- 31, I919.

Patented Sept. 80, 1919.

2 SHEETS-SHEET I.

ms mm PLANOHRA F. I. SMITH.

SEESAW.

APPLICATION'FILED MAR. 31. 1919.

Patented Sept 30, 1919 2 SHEETSSHEET 2 Unrrnn srn'rns PATENT OFFICE. J

FREDERICK I. siviirn, or SIDMAN, PENNSYLVANIA.

- SEESAW.

To all whom it may concern:

Be it known that I, FREDERICK I. SMITH, a citizen of the United States, residing at Sidman, in the county of Cambria and State of Pennsylvania, have invented certain new and useful Improvements in Seesaws, of which the following is a specification, reference being had to the accompanying drawmgs. v

This invention relates to an improved indoor see-saw for children, and the aim of this invention is to provide a simple, eflicient and practical indoor apparatus of this kind, whereby considerable amusement can be afforded for children.

The invention further aims to provide improved means whereby the see-saw board may be fulcrumed upon a pedestal, which is portable from one place to another.

The invention further aims to provide a see-saw having means, for instance such as an adjustable weight, whereby one end or the other of the board may be counter-balanced, relatively to the child, or person on the other end of the board, and in this way, the see-saw may be operated by a single individual.

A further object of the invention is to provide a see-saw, in which the counterbalancing weight can be adjusted toward and from the fulcrum of the board, whereby children of difierent weights may actuate the see-saw.

A further object of the invention is the provision of means for holding the counterbalancing member or weight on one end of is claimed. 1

The invention comprisesfurther features and combination of parts, as will be hereinafter set forth, shown in the drawings and claimed.

In the drawings: Figure 1 is a perspective view of a seesaw a paratus constructed in accordance with t e invention.

Specification of Letters Patent. Patented Sept, 30, .1919,

i Application filed March 31, 1919. Serial No. 286,287.

Fig. 2 is a longitudinal sectional view showing differently constructed handles than that illustrated in Fig. 1, in fact, the

handles in this figure consist of uprights the lg. l

the pedestal and transversely through t e center of the board, where it is fulcrumed on the pedestal. I

Fig. l is a transverse sectional view through one end of the board showing the means for strapping the weight or counter-- balancing member to the board.

Fig. 5 is a perspective View of a modified construction of a see-saw, in which T-shaped handles rise upwardly from the see-saw board.

' Referring more especially to'the drawings 1 designates a suitable base, which may be constructed of any suitable material, and may be any general contour found suitable for the purpose. Rising upwardly from the base is a pedestal 2, which comprises the body 3 and the brace blocks 4:, which are fastened by any suitable means, as shown at 5, to the body and the base, the brace blocks being positioned as illustrated. The upperend of the body adjacent its opposite side edges has suitable bearing lugs 6, provided with axially alin ed openings or bearings 7, in which a rod 8 is mounted. The-pedestal or base and the brace block may be constructed preferably of wood. The rod may be either wood or metal. In case it is constructed of wood, ordinary nails or the like may be driven through the same, adjacent the inner faces of the bearing lugs, there being suitable washers 10 between the nails and the inner faces of the lugs. Should the rod be constructed'of metal, it may be provided with apertures 11, for the reception of washers maybe interposed between the cotter pins and the adjacent faces of the bearing lugs. It is to be noted that the rod is constructed of a length, wherebyits opposite ends may project beyond the outer cotter pins 12. Also in this case, suitable' faces of the bearing lugs, thereby constitut- F ing trunnions.

A see saw board 14 is supplied, and this boardmay be constructed preferably of wood and may have any suitable design or configuration. Rising upwardly from the board the ends of the trunnions, thereby preventon opposite sides of the central portion thereof are suitable handles 15. These handles may be T-shaped as shown in Fig. 5, or may consist of uprights 16 connected by transverse pieces 17, or each handle maybe con structedof a single piece arranged U-shaped, in'lfact, arched. In either case, however, the handles are provided for the purpose of being engaged by the hands, in' order to steady --and keep the individual on either end of the board from accidently falling off the board,

while the same is in motion.

.Suitablebearing boxes 18 are secured by isjc rewsjorthe like 19to the underface of the board. These bearing boxes are of the shape shown, and the depending parts 20 thereof are hollowed out U-shaped, as shown at,21. The depending parts, however, are provided withend walls 22, which engage ing lateral movement of the board relatively pio thero'd. The depending parts of the bearing boxes engage or move adjacent the outer; faces of the bearing lugs, to further assist in holding-the board in position. The

j bearing boxesmay beconstructed of wood, if. found'pra'ctical, but preferably they are designed to be constructed of metal.

As shown in the drawings means is..pro-

vided inorder to counter-balance a single individual on one end of the board. This ;lllQZlIlS 'comprlses a fixed bearmg 23 ad acent ibllQCQlll-GI' of. the" board, said bearings being counter-balancing member or weight may be rod It is obviousthat the counter-balanc- ;secured by. suitable screws or the like 24.

- A rod 25 engages an opening 26 in the bearing 23, there being a set screw for holding this rod in different adjusted positions.

one end of the rod a countersbalan'cing meml iber or-weight27 is mounted. If desired, this member 27 may be made a fixed part of the rod, or threaded on the rod if so ter-balance the individual" on the other end of the board. In this manner a single child can operatethe see-saw as conveniently as z when two operate The opposite sides of the. counter-balancing member or'wei'ght is -provi zledwith depressions, which maybe gouged out or otherwise formed and extendacross the depressions 28 and integrally connecting the end wall of said depressions,

1 are transverse pieces 29. 'S uitable straps30 are connected to the transverse pieces 29,

- *jand the o )posite ends of these strap's are "means-of a suitable buckle or the like 31.

fastened together beneath the board, by

It is apparent that these straps maybe '5 draw-n tightlytogether, and hold the counter balancing member-in contact with the board, ;1 :nstead of depending upon the security of the set screw used in the bearings 23. By adjusting the counter-balancing member toward the center of the board, a child or light weight may operate the board. When i the counter-balancing member is adjusted toward the outer end of the rod, a child of having axially alined openings, of a rod arranged through said openings, whereby it is disposed transversely of the pedestal and having its ends projecting laterally beyond the lugs, thereby providing trunnions, a seesaw board, the under face of which bein provided with bearing boxes provided wit hollowed out U shaped portions axially alined and engaging said trunnions, washers on said rod respectively in contact with the adjacent ends of the upstanding lugs of the pedestal, retaining pins extending transversely of the rod and arranged in close position to the adjacent faces of thewashers, to hold the washers in place, and to prevent axial movement of the rod, and oppositely arranged handles projecting from the I upper surface of the board to be grasped for holding the persons on the opposite ends of the board.

2. The combination with a pedestal provided with a transverse rod having its opposite ends projecting beyond the opposite edges of the pedestal, thereby providing trunnions, of a board having bearing boxes adjacent its opposite side edges on the bottom surface of the board near its center engaging the trunnions, the upper surface of the board having upright handles, and means mounted upon the board for counterbalancing a single individual on the other end 'of the board, said means comprising a bearing centrally of the board, a weight provided with a rod passing through the last named bearing, and means for holding the rod adjustably in the bearing,

3. The combination with a pedestal provlded with a transyerse rod having its opposlte ends projecting beyond the opposite "edges of the pedestal, thereby providing trunnions, of a board having bearlng boxes adjacent its opposite side edges on the bottom surface of'the board near its center enaging the trunnions,'the upper surface of the oard having upright handles, and means mounted upon the board for counter-balancing a single individual on the other end ,of the board, said means comprising a bear ing on the part centrally thereof, a: rod

mounted in the bearing fixedly, and a counter-poise member or weight adjustable on the rod.

4:. The combination with. a pedestal provided with a transverse rod having its opposite ends projecting beyond the opposite edges of the pedestal, thereby providing trunnions, of a board havin bearing boxes adjacent its opposite side e ges on the bottom surface of the board near its center engaging the trunnions, the upper surface of the board having upright handles, and means mounted upon the board for counterbalancing a single individual on the other end of the board, said means comprising a bearing centrally of the board, a weight provided with a rod passing through the last named bearing, and means for holding the rod adjustably in the bearing, and means for strapping the counter-balancing member or weight securely to the board 5. The combination with a pedestal provided with a transverse rod having its opposite ends projecting beyond the opposite edges of the pedestal, thereby roviding trunnions, of a board havin bearing boxes adjacent its opposite side e ges on the bottom surface of the board near its center engaging the trunnions, the upper surface of the board having upright handles, means mounted upon the board for counter-balancing a single individual on the other end of the board, said means comprising a bearing on the part centrally thereof, a rod mounted in the bearing fixedly, and a counter-poise member or weight adjustable on the rod, and means for strapping the counter-balancing member or weight securely to the board.

6. The combination with a pedestal, the

upper part of which having upwardly extending bearing lugs spaced, a rod engaging said bearing lugs, means carried by the rod adjacent the inner faces of the bearing lugs to prevent axial movement of the rod, said rod having its ends protruding beyond the outerfaces of the bearing lugs, thereby providing trunnions, a see-saw board having means on its underface near its center engaging the opposite trunnions, handles rising upwardly from the board and being centrally disposed, and means adjustable on the board and overhanging one end thereof, whereby a single individual on the other end of the board may be counter-balanced.

7. The combination with a pedestal having a base, the upper part of the pedestal having oppositely arranged upstanding lugs, provided with axially alined openings, of a rod arranged through said openings transversely of the pedestal, and having its ends projecting laterally beyond the lugs, of means on the rod arranged in close position to the adjacent faces of the lugs to prevent axial movement of the rod, a see-saw board having bearing boxes, provided on their under parts with hollowed out portions to removably engage the trunnions, for fulcruming the board, and handles rising upwardly from the upper surface of the board.

In testimony whereof I hereunto aflix my signature in the presence of two witnesses. FREDERICK I. SMITH. Witnesses:

J. H. Lnmnr, En. Cos'rnow.

copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents, Washington, D. G.

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