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Sundial. SSW facing, vertical declining sundial on the Moot Hall in Aldeburgh, Suffolk, England. The gnomon is a rod that is very narrow, so it functions as the style. The Latin motto loosely translates as "I only count the sunny hours." A horizontal dial commissioned in 1862, the gnomon is the triangular blade. The style is its inclined edge.
Jeweler’s Piercing Saw: The blade of the saw was released by undoing the thumbscrew adjacent to the handle. To start an interior cut, a hole was drilled and the blade was inserted and reattached to the saw. This device was popular among clockmakers to repair the ends of clock hands.
The importance of the escapement in the history of technology is that it was the key invention that made the all-mechanical clock possible. [1] [2] The invention of the first all-mechanical escapement, the verge escapement, in 13th-century Europe initiated a change in timekeeping methods from continuous processes, such as the flow of water in water clocks, to repetitive oscillatory processes ...
Disston Saw Works was an American company owned by Henry Disston that manufactured handsaws during the mid-19th to early 20th century in the Tacony neighborhood of Philadelphia. The company was initially named Keystone Saw Works and then Henry Disston & Sons, Inc. Two successor companies are said to still be around, Disston Precision is still ...
A coping saw. A coping saw is a type of bow saw used to cut intricate external shapes and interior cut-outs in woodworking or carpentry. It is widely used to cut moldings to create coped rather than mitre joints. It is occasionally used to create fretwork though it is not able to match a fretsaw in intricacy of cut, particularly in thin materials.
The company installed the first circular saw ever seen in Bristol. By 1837 Jerome's company was selling more clocks than any of his competitors. A one-day wood-cased clock, which sold for six dollars, had helped put the company on the map. A year later his company was selling that same clock for four dollars.
A saw set is a tool or part of the tool kit for tuning saw blades. It adjusts the set, or distance the saw tooth is bent away from the saw blade. The magnitude of set determines the cut width and prevents the blade of the saw from binding in the wood.
Reciprocating saws have many uses; here, one is shown cutting through hard-to-remove nails in a staircase. A reciprocating saw is a type of handheld, small, machine-powered saw, in which the cutting action is achieved through a push-and-pull ("reciprocating") or back-and-forth motion of the blade. The original trade name, Sawzall, is often used ...
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