Report for Two Harbors Breakwater (Minnesota) - 1910

General
District: 11th
Inspector: Oliver G. Brown
Location: On the outer end of the breakwater, W'ly entrance to Two Harbors.
Date of Report: 09/11/1910
Latitude: 47° 00' 45"
Longitude: 91° 40' 09"
Premises
Site: On outer end of E'ly breakwater by permission of War Dep't.
Date of Reservation:
Date of Deed:
Date of Permission:
Date of Lease:
Area of the Entire Site:
Area Inclosed:
Character of Soil:
Distance of tower from Nearest High-Water Mark:
Inclosures to Premises / Type of Fence:
Wharf or Landing on Premises:
Road to Land or Wharf Chararacter of and Distance:
Means to Reach Light Station:
Distance to Nearest Road:
Distance to Post Office:
Distance to Village:
Facilities for Public Conveyance:
Facilities for Private Conveyance:
Means Used for Support of Lantern: Tower
Number of Separate Lights: 1
First Built or Established: 1895
Last Rebuilt, Repaired, or Renovated: 1906
Condition at This Date: Good
Shape of Tower in Plan: Square
Form of Tower: Pyramidal
Height from Base to Ventilator Ball: 32' 10"
Height of Focal Plane Above Mean High Water: 33' 6"
Background of Lighthouse as Seen from Sea:
Color of Tower: White
Color of Tower/ How Produced: Paint
Tower Connection: Tower is on end of breakwater about 1500' from keeper's dwelling
Object of Navigation:
Building Materials: Structural steel - upper part enclosed & shingled with metal plates
General Description: Corner posts of tower are hvy 6" x 6" angles & are bolted at base to hvy 10" channel sills which are anchored to deck of breakwater. Towers are braced diagonally by solid round iron bars.
Wall Thickness at Base:
Wall Thickness at Parapet:
Diameter at Base: 14' sq.
Diameter at Parapet: 10' 6" sq.
Kind of Stairway and Steps: Wooden stairs lead from base of tower to fog bell landing & machinery room.
Number of Landings: 2
Size of Glass: 10" x 10"
Number of Windows and Size of Sash: 2; 24" x 24" (2 sashes each)
Number of Doors:
Kind of Foundation and Depth Below Surface:
Character of Soil Surrounding the Lighthouse:
Soil Susceptibility:
Miscellaneous Remarks:
Lantern and Fixtures
Order of Lantern: 4th
Shape of Lantern: Polygonal
Diameter to Glass: 7' 1/2"
Diameter in the Clear:
Number of Sides: 8
Type of Bars: Vertical
Thickness of Bars:
Height Glazed: 3'
Number of Plates in Height: One
Number of Plates Each Side: One
Thickness of Plates: 5/16"
Size of Plates: 34" x 36"
Number of Storm Panes: None
Unglazed Side of Lantern: All sides glazed
What Bearings:
Construction Material Lantern: Lower part cast iron; upper part wrought iron.
Construction Material Roof / Cowl: Cast iron-pyramidal dome - sheet zinc lining inside. No lens protector.
Ventilator / Cowl: Cast iron
Lightning Spindle: Copper with platinum tip
Description of Lightning Rod: 4" x 1/8" iron bar is fastened to base of tower & runs over side of crib into lake.
Balustrade: 2 pipe rails 1 3/4" diam. vert. stanchions of same material - floor is cast iron & square in plan.
Lantern Doors: 2 fold iron door leads from lower part of lantern to outside gallery
Floor of Lantern: Cast iron floor - iron trap door in floor leads down to stairs
Watchroom Doors: No watchroom
Parapet Diameter: 6' 7 1/4"
Ventilators
Location / Number: 4 ventilators in lower part of lantern
Ladders / Cleaning Arrangement: None
Curtain Hooks / Hanger: Hooks screwed to soffit
Illuminating Apparatus
Kind of Apparatus:
Intensity in Candles:
Name of Maker: Pintsch Gas Burner; Safety Car Heating & Lighting
Year Made:
Marks and Number: No. 809
Order of Apparatus:
Inside Diameter:
Light Characteristic: Red flash, 7 secs, eclipse 3 sec.
Time of Revolution:
Flash Interval:
Duration of Flash:
Arc of Each Fixed Part: Pintsch gas buoy lantern
Number of Panels:
Number of Flash Panels:
Arc of Each:
Number of Elements in Central Drum:
Number of Prisms Above Center Drum:
Number of Prisms Below Center Drum:
Does Apparatus Revolve?: False
Is There a Revolving Belt?: False
Revolving Panels:
How Flash is Produced:
Number of Vertical Elements Panel:
Fixed Lens Covered:
Pedestal: Regulation Pintsch gas buoy burner on pipe pedestal.
Service Table:
Draft Tube Description:
Revolving Machinery:
Standby and Description:
Chariot Float or Balls:
Chariot Description:
Length of Drop Tube:
Clock Weight:
Length of Winding Time:
Drive During Rewind:
Machinery Protection:
Regulated:
Lens Protection:
How Color is Produced:
Red Sectors Description:
Where Color Attached:
Form of Colored Glass:
Lamp Description: Pintsch gas Buoy Lantern
Type of Illuminant:
Number of Spare Lamps:
Number of Spare Burners:
Candle Power:
Closets and Store Rooms
Tower Closet Use: None
Oil House Description: Gas tanks are stored in chamber under floor of breakwater.
Oil House Inside Dimension:
Oil House Construction Material:
Oil House Capacity: 2 Pintsch gas cylindrical tanks 4' 2" dia. by 8' long are located in compartment of timber pierhead of breakwater.
Other (Describe):
Suitability:
Fog Signal General
Fog Signal Kind: Fog Bell
Time to Start: Starts instantly
How Long Will Pressure Last:
Manufacturer: Gamewell Fire Alarm Co.
Year of Manufacture:
Characteristic: Stroke every 10 sec.
Duplication:
Timing Device:
If whistle, siren, or trumpet, Pressure at Which Blown:
Height Above Water:
Compass Direction:
Location: Bell is on outside of tower & facing channel.
Distance and Direction:
Water Supply:
Reached from Lighthouse:
Description of Fog Signal Building: Upper part of tower houses fog bell machinery is enclosed & shingled outside with metal plates & lined inside with wood ceiling. Machinery room is equipped with 1 shelf & 2 windows of 2 sashes each. Bell started & stopped from shore by electric current.
Pressure And Recording Gauge:
Bell Signal
Weight: 1,500 lbs
Metal: Gun metal bronze
Diameter:
Height:
Time: 45 min.
Manufacturer: Gamewell Fire Alarm Co.
Weights for Operation:
Miscellaneous
Access to Lighthouse:
Distance and Direction:
Miscellaneous Remarks: Fog bell machinery is operated by weights. These are wound up from sleeve by electrical device. Frame bldg near fog signal bldg at main light houses a small steam engine that runs dynamo. Wires run from there to motor in machinery room that winds weights.