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Патент USA US3081091

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March 12, 1963
Filed Oct. 24, 1960
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James W. Gregory '
March 12, 1963
‘Filed Oct. 24, 1960
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James W Gregory
United States Patent 0 ” we
Patented Mar. 12, 1963
frame 9 is attached to bolts 11 by means of the adjust~'
ing nuts 13.
James W. Gregory, 922 Hollywood Ave., Dallas, Tex.
Filed Oct. 24, 1960, Ser. No. 64,344
- 1 Claim; (Cl. 272-7)
This invention is concerned with playground equip
ment, primarily for children, and is particularly con
cerned with a playground device having rotatable seats
The lower wheel .14 is rotatably mounted between
the wheel brackets 15 which are mounted by suitable
bolts 16 passing through the upper plate 6, and are held
in adjusted relationship on the bolts 16 by means of
the adjusting nuts 17.
It will be noted that the wheels 8 and 14 are ar
ranged to roll about the spiral band 2 as the carriage
thereon, which are rotated about a pole by a spiral ‘track 10 moves up and down the pole 1 in a circular motion.
As force is exerted upwardly and downwardly on the
extending about the pole which operates in conjunction
carriage 5, the wheels 18 and 14 are caused to roll about
with wheels mounted on the frame supporting the ro
the spiral 2 to thereby cause the carriage to rotate about
tatable seats.
the pole 1.
The primary object of the invention is to provide a
A stop member 18 which is pivoted at one end to
playground device having a frame with seats on the outer 15
the post 1 and is free at the other end is provided to
end thereof rotatably disposed about a pole. The frame
permit the upper wheel assembly to coast about the pole
has wheels mounted thereon, running on a spiral track
1 when the carriage reaches the lower end of the spiral
so that when weight is disposed upon said frame, the
2 disposed about the pole 1.
wheels will have a tendency to roll downwardly about
A similar lower stop 19, which is pivoted at one end _
the spiral track and cause the seats on the outer end 20
to post 1 and is free at the other end, is arranged to
of the frame to be whirled about the pole.
allow ‘the lower wheel to coast about the pole when it
Another object of the invention is to provide a child’s
reaches the ?ange 28 at the lower end of the pole 1.
playth-ing of the type here indicated wherein means is
Seats 20 are provided at each end of the seat carriage
provided at the top of the pole to stop the rotation
25 frame 5, said seats having suitable hand rails 21 provided
of the seat carrying frame.
therea-bou-t and a foot rest 22 extending across between
Another object of the invention is to provide means
the side frames 5a and 5b. Ladders 23 are provided
at the lower end of the spiral track, which provides a
at each end of the seat carriage frame 5, having plat
stop to prevent the rotatable frame from running olf
forms 25 at the upper ends thereof. The ladders are
of the spiral track and at the same time permits it to
30 preferably set in vconcrete 24 provided in holes in the
coast to a stop as it rotates about the pole.
earth 27.
Other and further objects of the invention will be
A rope 26 is attached at one end of the seat carriage
come apparent upon reading the detailed speci?cation
frame 5 for the purpose of pulling the seat carriage 5
hereinafter following and by referring to the drawings
upwardly on the pole 1 so that it may be mounted by
annexed hereto.
Suitable embodiments of the invention are disclosed 35 participants and ridden down in the manner hereinafter
in the attached drawings in which:
In the modi?cation shown in FIG. VI, a lower cir~
FIGURE I is a side elevational view of the playground
FIGURE II is a top plan view thereof;
FIGURE III is a front view of one of the ladders used
cular plate is rotatably mounted about pole 1, and bolts
11 and 16 pass therethrough, and are secured thereto by
40 suitable bolts to provide additional bracing ‘for wheel
assemblies 8—9 and 14—15.
The operation and function of the playground device
FIGURE IV is an end view of the playground device;
hereinbefore described is as follows:
FIGURE V is a view taken along the line V—-V of
The seat carriage 5 is moved upwardly to the top of
FIG. I; and
45 the pole 1, either by pushing it upwardly as it rotates
FIGURE V1 is a modi?ed form showing an enlarged
about the pole on the spiral 2, or it may be pulled up
side elevational view of the wheel carriage mechanism
wardly by the rope 26 by the participants mounting the
for the device.
ladders 23. As the seat frame moves upwardly, the
Numeral references are employed to designate the
Various parts shown in the drawings, and like numerals 50 wheels 8 and 14 rotate about ‘the spiral band 2, causing
the carriage 5 to rotate about the pole 1. The two par
indicate like parts throughout the various ?gures of the
ticipants climb the ladders 23 to the platforms 25 and
when the seats 20 are substantially in alignment with
The numeral 1 indicates a cylindrical post which is
the platforms 25, the participants step off onto the seats,
made of heavy tubular material, or may be solid. The
post 1 is preferably set in concrete 10 in a hole provided 55 grasp the handrails 21, brace their feet against the foot
braces 22, and the weight of their body causes the rollers
in the earth .27. A spiral band 2 is secured to, and ex
in conjunction therewith;
8 and ‘14 to roll downwardly about the spiral band 2,
causing the frame 5 to rotate rapidly about the pole.
A ?ange 3 is provided on the upper end of the post
‘When the lower wheel 14 reaches the ?ange 28, it is in
1 and a vertically disposed lug 4 is secured to the post 1
adjacent the ?ange 3 to provide a stop for the frame 60 alignment with the pivoted arm 19, and the ‘wheel 8 is
also in alignment with the pivoted arm 18.‘ As the seat
carriage as Will be hereinafter described.
carriage 5 rotates about the pole 1, the wheels will pivot
The sea-t carriage frame 5 includes side members 5a
tends about, the post 1.
and 5b and cross braces 5c.
the free outer ends of the arms 18 and 19 upwardly as
the wheels pass thereunder, thereby allowing the seat
A top plate of heavy metallic material 6 is secured
to the side frames 5a and 5b of the seat carriage 5 by 65 frame to coast to a stop.
When the seat frame is pulled to the upper end, it is
means of suitable bolts 7. The top plate 6 has a circular
caused to stop when the upper wheel ‘8 engages the verpassage 6a therethrcugh which embraces the post 1 and
tically disposed stop 4, and is prevented from running oi
is rotatable thereabout.
the end by the ?ange 3.
An upper wheel ‘8 is rotatably disposed between the
wheel brackets 9, and said wheel brackets ar secured to 70 It is understood that other and further embodiments
of the invention can be devised without departing from
the plate 6 by means of bolts 11, which extend through
the spirit and scope of the appended claim.
the upper plate 6 and the wheel brackets 9. The wheel
Having described my invention, I claim:
In a playground device of the class described, an up
right post; a spiral track disposed about the post; a pas
tical relation to the ?ange, said other arm being pivoted
to the post at one end ‘and free of attachment to the spiral
track at ‘the other end, the free ends of said arms being
senger carrying frame member rota-tably disposed about
engageable by ‘said wheels, whereby when the lower
the post; a pair of vertically spaced wheels attached to 5 Wheel engages the ?ange, the wheels may freely coast
the frame and engaged with the spiral track, whereby
about the post by lifting up the free ends of the arms to
when force is exerted downwardly on the frame, the
wheels are caused to roll on ‘the spiral track to cause
‘the rotation of the frame; a ?ange about the lower end
of the post; an arm pivotally attached to the post at the
lower end of the spiral track, and having a free outer
end in engagement with the ?ange, said arm constituting
a continuation of the spiral track to the ?ange; another
arm constituting a part of the spiral track in spaced ver
permit the frame to coast to a stop.
References Cited in the ?le of this patent
McAnulty ____________ __ June 24, 1902
Hartmeister __________ __ Oct. 24, 1916
Brown ______________ __ May 29, 1928
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