显示 1586 结果

Archival description
Council of Forest Industries of British Columbia fonds
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Hemlock: The Natural Choice

This film promotes Hemlock as a building material. It begins with an animation showing how trees grow in the forest setting, and how trees are cut based on clear zones and factory zones, determined by the presence of knots. The film shows the cutting of the hemlock and the drying of the wood, as well as cutting clear lengths for interior paneling. It continues with cutting of clear lengths for interior paneling, the hemlock used in Coquitlam Centre, ladder manufacturing, creation of exterior siding and finger joints, garage doors, sash and window frames, wood frame patio doors, raised door panels, column and spindle construction, and how well hemlock undergoes the process of staining and moulding.

Plywood World

The film features the creation of plywood from hemlock, spruce, pine, western and Douglas fir. It shows the process of felling a tree to transporting it via logging truck, and unloading it at the water. A man in a Nanaimo Yarder is shown creating moving the logs into booms. The logs are shown at the mill, where the process of veneer production from both heartwood and sapwood is detailed. The veneer drying process is shown, and then the bonding of the veneer into plywood using a hot press and adhesive made of formaldehyde resin. The plywood is then shown being trimmed and sanded.
Uses of plywood are shown including the creation of a large loom to be sent to Australia, the forming of concrete, packaging of appliances, tongue and groove panels, cabinets and cupboards, skyscraper construction, construction of the first orthotropic steel deck bridge in North America, construction of Simon Fraser University campus, and prefabricated buildings. A facility for research and testing of plywood is shown, and more uses of plywood are shown including its ability to work as both covering and structuring material, to create stressed skin panels and plywood beams, folded plates, stressed panel arches, rigid frame construction and be adapted to unique uses such as the creation of wood-working tools, as a bath in a film processing centre, as boat siding, or to create a plywood sailplane.

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