Document ID: chunk:federal_register_of_legislation:F2013L01343:front:0:p20
Version: federal_register_of_legislation:F2013L01343
Segment Type: other
Provision Reference: 
Character Range: 51235–53904

acetylene system consisting of an acetylene carbide plant mounted above a small platform fixed to the northeast queen post above head height.

Shelving and Benches
Numerous shelves were erected throughout the hut. Most shelves appear to consist of tongue and grooved boards and off cuts of timber supported on metal brackets of various sizes and design. Three shelves were erected on the north wall for the storage of cooking and eating utensils and food stuffs. Three shelves erected on the outside of the north wall of Mawson's cubicle were used for the library. A bench constructed from tongue and grooved boarding and framing timber was erected for cooking items adjacent to the stove. These shelves still have a wide variety of artefacts on them. Some shelving has collapsed under the weight of snow and ice.

Insulation
The only reference to insulation is that recorded by Mawson when he describes the use of 'two courses of tarred paper' in the roof and walls to make them extra wind proof. The extent of the tarred paper is unknown however inspections have confirmed tarred paper visible in the roof through gaps in the boards. The floor ice contains many small fragments of the tarred paper. Straw type insulation (originally used as packing material) has been found adjacent to the door to the living room, and gaps in the boards in combination with strips of tar paper.

Stove and Chimney
A large stove described by Mawson as an anthracite coal cooking range was installed in the
northwest corner. The stove was used for cooking and provided warmth for the hut. A chimney of approximately 15 cm diameter penetrated the roof above. The chimney was fitted with a cowl and was supported by three wire stays fixed to the roof. The penetration was over flashed. Asbestos cement sheeting backs the stove along the external wall of the darkroom.

The chimney collapsed between 1977 and 1978. External evidence of the chimney was obscured with the over-cladding of the roof in 2006-07.

Skylights
Skylights were provided in each section of the roof to provide light to the interior of the hut. Each skylight was constructed of appropriate framing, three panels of 2.9 mm glass set into a timber glazing system using putty and glazing pins. Each skylight was then fitted with a hinged cover. Dimensions of each skylight varied. All the original skylights and covers have subsequently been repaired to prevent snow and ice ingress. The glass has been replaced and the covers are a mixture of replica parts and repaired originals.

Doors
There are three doors inside the Main Hut which are part of the original fabric. These include the door into the workshop from the