Abstract: An acoustically active hot tub has audio transducers affixed to the underside of the shell forming the hot tub. The hot tub reproduces sound from a sound source such as a radio or compact disc player. Effective transducers will generally have a frequency response somewhere in the range of 20 Hz-20,000 Hz. The transducers are affixed to the underside of the shell of the hot tub by means of blocks of marine grade plywood embedded into the material forming the underside of the shell, with the transducers mounted onto the blocks. Also provided is a new method for manufacturing the hot tub of the invention.

Abstract: An acoustically active hot tub has audio transducers affixed to the underside of the shell forming the hot tub. The hot tub reproduces sound from a sound source such as a radio or compact disc player. Effective transducers will generally have a frequency response somewhere in the range of 20 Hz-20,000 Hz. The transducers are affixed to the underside of the shell of the hot tub by means of blocks of marine grade plywood embedded into the material forming the underside of the shell, with the transducers mounted onto the blocks. Also provided is a new method for manufacturing the hot tub of the invention.

Abstract: A storage and selectable display device for sheet media includes an enclosure having a slot. A rotatable spool is secured within the enclosure. A leader assembly attaches the sheets to the spool so that the free edges of the sheets are circumferentially disposed about the spool when rolled up. Individual leaders are attached to a master leader and charts are attached to the individual leaders. An actuator connected through a clutch rotates the spool to wind the sheets. Opposite rotation is prevented by the clutch. Belts frictionally engage a portion of the outermost surface of the spool and rolled sheets. Shafts are provided to hold the belts in position. The belt drive shaft is connected to the actuator by gearing and a clutch. The clutch actuates in the unwind direction, but not in the opposite direction. A flexible, resilient, transparent window has one edge which resiliently engages the rolled charts.An alternative ejection system includes a lay shaft and frictionally engaged idler roller.