Hand log with reel, chip and hourglass – 1880/1900

Hand log with reel, chip and hourglass – 1880/1900

Stock Number: Catalogue: NM.5-26

€2,150

The hand log was first described in 1574 (Sharp, p 5). It consists of a wooden chip with peg, the log line, a reel and a 28 or 14 second sandglass.

Circa

1880 - 1900

Country of manufacture

Other

Categories: Maritime, Navigational instruments, Other Maritime Antiques

Description

The hand log was first described in 1574 (Sharp, p 5). It consists of a wooden chip with peg, the log line, a reel and a 28 or 14 second sandglass. The chip in the shape of a circle sector and weighted with lead on the arc, is fitted with two lines to the peg, the end of the log line forms the third. After a stray line of about thirty meters, the log line is equally divided into parts of 47 feet 3 inches (14.40 meters) to start with a flag or bunting. Thus at every 47 feet 3 inches knots are placed to denote the number of miles. The chip is thrown astern of the ship and remains static whilst the line is paid out and the ship sails away from it. The number of knots sailed out in 14 or 28 seconds indicates the speed of the ship in miles per hour or knots. Between every knot half knots are marked.

 With this log a speed up to 5.5 knots can be determined. The starting point, the zero mile, is marked with a red flag and the first knot is marked with a leather vane. Half knots are indicated by simple lines without knots.
The hourglass of 28 seconds is housed in a wooden house, 13 cm high. 

 Date: 1880-1900
LD reel: 64×20 cm
Signed: not signed
Origin: unknown
Condition: in good and working condition, wear consistent with age and use

Became curious? More interesting objects can be found at www.archipel-img.com

 

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NL ARCHIPEL International Maritime Gallery

Welcome to the catalogue of Archipel International Maritime Gallery, specialist in nautical antiques and collectables.
Archipel International Maritime Galery in the Netherlands, sets itself to maritime objects, globes and sea charts of before 1900. The managing director worked as officer with the mercantile marine and the Royal Navy. As curator he was connected to one of the University Museums in the Netherlands. As seaman and curator he has a lot of knowledge of naval history. The entire Archipel collection can be found at the site Archipel-img.com.

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