toggle iron การใช้

• Lewis Temple was an African-American blacksmith who invented the toggle iron, a type of toggling harpoon, which revolutionized the whaling industry and enabled the capture of more whales.
• The toggling iron harpoon was even more successful and rapidly phased out the use of the " common harpoon " ( a term which refers to either the one or two flue harpoon ).
• In 1848 Lewis Temple, an African-American blacksmith in New Bedford, Massachusetts adapted the toggling harpoon using a wooden shear pin to initially brace the toggle head, and created what came to be known as " Temple's Toggle " and later simply as the " toggle iron " or " iron toggle " harpoon.