Tower

• US 5,957,779 A
• Filed: 11/12/1997
• Issued: 09/28/1999
• Est. Priority Date: 10/08/1996
• Status: Expired due to Fees

• Current Assignee: Walter F. Larson
• Original Assignee: Walter F. Larson
• Inventors: Larson, Walter F.
• Primary Examiner(s): Nguyen, Kien T.
• Application Number:
  US08/968,256
• Time in Patent Office: 685 Days
• Field of Search: 472/29, 472/32, 472/33, 472/34, 472/35
• US Class Current: 472/34
• CPC Class Codes: A63G 1/44 with turntables moved up and down

Abstract

A tower (150, 200, 250) is disclosed which can be used for an amusement ride, having gondolas (20) or for advertising, having an advertising sign (252). The tower has a lower section (16) and an upper section (18) and a lifter, such as a hydraulic cylinder, to lift the upper section (18) between a retracted position and an extended position. At least one cable interconnects the gondola or advertising sign and the lower section so that the gondola or advertising sign is lifted at twice the rate as the upper section. The tower can be mounted on a rotatable base (152) which rotates the entire tower about a vertical axis. Also, counterweights (202) can be used to reduce the load necessary on the lifter to lift the upper section.

Claims

1. An apparatus, comprising:

a base, said base having a stationary portion and a rotating portion;

a lower section mounted to the rotating portion of the base;

an upper section having an upper end;

a lifter for lifting the upper section vertically relative to the lower section between a retracted position and an extended position;

a device mounted on the upper section for motion relative thereto;

at least one constant length flexible member attached at one end to the device and at the other end to the lower section, the member passing over the upper end of the upper section, the lifting of the upper section lifting the device through the flexible member at a rate twice as fast as the upper section is lifted; and

rotation of the rotating portion of the base relative the stationary portion further rotating the lower section, upper section and device.

2. The apparatus of claim 1 wherein the device is a gondola.

3. The apparatus of claim 1 wherein the device is an advertising sign.

4. The apparatus of claim 1 further comprising a counterweight mounted between the lower section and the upper section acting to exert a force to lift the upper section to the extended position.

5. An apparatus, comprising:

a lower section;

an upper section having an upper end;

a lifter for lifting the upper section vertically relative to the lower section between a retracted position and an extended position;

a device mounted on the upper section;

at least one constant length flexible member attached at one end to the device and at the other end to the lower section, the member passing over the upper end of the upper section, the lifting of the upper section lifting the device through the flexible member at a rate twice as fast as the upper section is lifted;

a counterweight mounted to the lower section acting to exert a force on the lower section to lift the upper section to the extended position.

6. The apparatus of claim 5 further including a plurality of counterweights.

7. The apparatus of claim 5 wherein the device is an advertising sign.

8. The apparatus of claim 5 wherein the device is a gondola for an amusement ride.