Ship Compass, Bramah & Sons, c. 1825 - c. 1829 Compass in a compass house. The glass has disappeared. The Cylindrian copper compartment boiler is weighted with a lead ring around it, which can be adjusted in height. The cardanus ring has been replaced by an unusual suspension: the entire boiler with weight rests on the compass, which balances with a ball on top of a rod in the bottom of the compass house; A spring has been applied to the rod, which absorbs vertical shocks. De Roos has a transparent mica center; The main and main intermediate areas are indicated and subdivided into eight on th
Ship Compass, Bramah & Sons, c. 1825 - c. 1829 Compass in a compass house. The glass has disappeared. The Cylindrian copper compartment boiler is weighted with a lead ring around it, which can be adjusted in height. The cardanus ring has been replaced by an unusual suspension: the entire boiler with weight rests on the compass, which balances with a ball on top of a rod in the bottom of the compass house; A spring has been applied to the rod, which absorbs vertical shocks. De Roos has a transparent mica center; The main and main intermediate areas are indicated and subdivided into eight on the paper outer edge. The compass house has a pendulum on the inside, which can be read as a clinometer by a viewing glass at the front. At the top, the pendulum has the Koerswijzer for the compass: Because the compass kettle is hung at a single point, it can turn and the course must be read from the pointer of the quadrant, which follows the pendulum movement of the boiler but does not turn. Two small doors on the sides give access to the compass to disassemble the compass. A spare spring is included. The compassing has been broken in the past and a new one has been added to the compass; This is in turn broken, the old one has been repaired and applied to its place. instrument maker: Londonafter design by: United Kingdom wood (plant material). brass (alloy). copper (metal). iron (metal). lead (metal). precious stone (material). agate (chalcedony). paper. lacquer (coating)
Size: 5688px × 4692px
Photo credit: © piemags/rmn / Alamy / Afripics
License: Licensed
Model Released: No
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