Wood-turning lathe

Details Wood-turning lathe Wood-turning lathe

2005-07-12

2005-07-12

Fridie, Jr., Willmon (Department: 3722)

Turning

Lathe

Headstock

C082S144000, C082S142000, C082S905000

Reexamination Certificate

active

06915726

ABSTRACT:
A wood-turning lathe includes a spindle and a drive shaft journalled to a headstock housing. A motor is mounted in the headstock housing, and includes a rotor. A torque converter includes a first wheel that co-axially surrounds the spindle and that is securely coupled to the rotor, a second wheel mounted securely on the drive shaft, and a belt trained on the first and second wheels, thereby increasing torque of the drive shaft. A speed change device includes a first pulley unit mounted on the drive shaft and defining a first belt-engaging surface, a second pulley unit mounted on the spindle and defining a second belt-engaging surface, and a non-elastic belt interconnecting the first and second pulley units and frictionally contacting the first and second belt-engaging surfaces.

REFERENCES:
patent: 3418863 (1968-12-01), Landau
patent: 3718405 (1973-02-01), Keiter et al.
patent: 4497353 (1985-02-01), Sproat, Jr.
patent: 4573380 (1986-03-01), Bald
patent: 5186088 (1993-02-01), Wixey

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