Revolving Machinery:

 

Standby and Desc:

 

Chariot float or balls:

 

Chariot desc:
 

 

Length of drop tube:

 

Clock Weight:

 

Length of winding time:

 

Drive During Rewind:

 

Machinery protection:

 

Regulated:
 

 

Lens Protection:

 

How color produced:

 

Red sectors desc:

 

Where color attached:

 

Form of colored glass:

 

Lamp desc:

 

Type of illuminant:

 

Candle Power:

 

Num spare lamps:

 

Num spare burners:

Lighthouse Inspection Reports Database

Pedras Blancas Light Station - 1910

Illuminating Apparatus page 2 of 2

weight driven clockwork

 

 

 

chariot

 

steel ring with screwed in steel spindles, carrying 10 solid brass wheels tread turned to same curve as circumference.

 

 

 

 

 

3 hours

 

 

 

increase in round iron & glass case with 4 doors.

 

by varying weight on cord & by raising or lowering balls of centrifugal governor which acts on feathering air vanes.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

3

Revolving cord:

 

Size of Clock Cord:

 

Length of Clock Cord:

 

How Led:
 

 

Diameter and length of clock drum:

steel cable

 

3/8"

 

 

 

from drum of clock to sheave of weight, thence up to 1st landing ie weight hangs in bight of cable.

Number of wicks or mantels:

 

Diameter of outside wick:

 

Diameter of mantel:

 

Diameter of circum circle:

5 wicks

 

4 3/8"

 

Clock Cord Description

Oil vapor lamp

Home | About Us | Magazine | Membership | Lighthouse Passports  | Expeditions | Lightship | Resources | Store | Contact Us | Store | Site Map

© 2006 United States Lighthouse Society · 244 Kearny Street 5th Floor, San Francisco CA 94108 · ph. 415.362.7255