Engravable 5-inch Solid Brass Abney Level

Out of stock
Special Price $14.95 Regular Price $39.95

Dimensions & Weight:
5 inches (12.7 cm) long (telescope collapsed), 1 1/4 inches (3.2 cm) wide, 2 1/4 inches (5.7 cm) tall
7 1/8 inches (18.1 cm) long when telescope fully extended
6.3 ounces (179 grams)

Product Features:
Name after Captain William Abney of the School of Engineering in Chatham, England
Used to measure the vertical angle or inclination
Also referred to as an Angle Sextant

Full Description:
This is a solid brass reproduction of an Abney Level.  The Abney level is named after Captain William Abney of the School of Engineering in Chatham, England.  Also referred to as an Angle Sextant, the Abney level is used to measure the vertical angle or inclination.  It consists of a telescope and an adjustable tubular spirit level which is connected to a vertical scale marked in both slope and degrees.  When viewing through the eyepiece, there is a horizontal index line that is aligned over the object being measured, and adjacent to the object is a reflected image of the tubular spirit level as viewed from underneath.  The level is adjusted until the bubble is centered and aligned to the horizontal index line.  The angle of inclination or declination is then read from the vernier scale.

This Abney Level is 5 inches (12.7 cm) long and 7 1/8 inches (18.1 cm) when the 1-power telescope is extended.  The level has a 1 1/4 inch (3.2 cm) radius scale with a magnifier to assist in reading the vernier.  The spirit level has two adjustment screws.  The Abney Level measures 2 1/4 inches (5.7 cm) tall, 1 1/4 inches (3.2 cm) thick, and weighs 6.3 ounces (179 grams).  The side of the level is engraved "Stanley London."  This antique reproduction Abney Level is fully functional but is not certified accurate.

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