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Point Arena Lighthouse on The Mendocio Coast CA

The History of Lighthouse Illumination
Illumination Home Page - Part I - Part II - Part III - Part IV - Part V
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LENS ROTATION METHODS

  •Chariot Wheels
•Ball Bearings
•Mercury Floats

 

CHARIOT WHEELS

 

BALL BEARINGS

 

MERCURY FLOATS

 

LENS DRIVE METHODS

 •Clockworks
-Variations
-Regulators


•Electric Motors

 

CLOCKWORKS

 

CLOCKWORK VARIATIONS


(c)Egbert Koch 2002

 

REGULATORS


(c)Al Gademsky 2002

(c)Hans Helge Staack 2002

Hans Helge Staack 2002

 

ELECTRIC MOTORS


(c)Egbert Koch 2002

 

ROOF STYLES

French Dome with Ball

English Flat with Dome

American Flat

 

WINDOW VARIATIONS

Rectangular

Lozenge

Diamond

Part I - Part II - Part III - Part IV - Part V
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