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A rule, now better known as a ruler and similar to a yard stick, is used to measure. Repeated measurements often use a storey pole; Carpenter's marks were made with a race knife, chisel, gouge, saw, grease pencil, chalk pencil, or lead pencil. Chalk line or ink line used to snap lines on the wood. Ink and a slurry of charcoal were used like chalk.
A pair of straightedges called winding sticks are used in woodworking to make warping easier to perceive in pieces of wood. Three straight edges can be used to test and calibrate themselves to a certain extent, however this procedure does not control twist. For accurate calibration of a straight edge, a surface plate must be used. [2]
A variety of rulers A carpenter's rule Retractable flexible rule or tape measure A closeup of a steel ruler A ruler in combination with a letter scale. A ruler, sometimes called a rule, scale or a line gauge or metre/meter stick, is an instrument used to make length measurements, whereby a length is read from a series of markings called "rules" along an edge of the device. [1]
Hybrid measures bearing customary markings on one side and metric units on the other also exist and are sometimes referred to as yardsticks, metre-whesticks [citation needed] or "metre rulers". The spelling meter vs metre varies by country, though metre is the official and most widely used spelling in English-speaking countries.
A combination square is a multi-purpose measuring and marking tool used in metalworking, woodworking, and stonemasonry. It is composed of a rule and one or more interchangeable heads that can be attached to the rule. [1] [2] Other names for the tool include adjustable square, combo square, and sliding square.
During and after World War II the company continued to produce thousands of rulers and other measuring instruments. After remaining in family hands for 96 years, the Westcott Rule Co. was sold in 1968 to Acme Shear Company of Bridgeport , Connecticut , which was a manufacturer of shears and medical equipment .