Object data
wood, brass, copper, iron and enamel
register: height 26.2 cm × width 37.2 cm × depth 10.5 cm
rotating vane 1: length 41.3 cm
rotating vane 2: length 40.8 cm
I. Thyssen
Log with Two Rotating Vanes
Rotterdam, c. 1860
Inscriptions
- inscription, on the dial: I-THYSSEN’s-PATENT / LONDON-Nº 165 / ROTTERDAM
- label, on the door: 1011 former inventory label
Conservation
- Ab Hoving, March 2009: metal cleaned; revarnished
Provenance
...; transferred from the Ministerie van Marine (Department of the Navy), The Hague, to the museum, 1883
Object number: NG-MC-1011
Copyright: Public domain
Entry
Mechanical log consisting of a taffrail register in a wooden box and two rotating vanes, one of which is attached to the back of the register with a log line. The second vane is a spare. The rotating vanes are cylindrical floats with three fins that drive the register clockwise. The round register has three enamelled dials for 1 mile (subdivided in sixteenths), 10 miles and 100 miles.
The first trailing log with a taffrail register was patented by the Dane Carl Unden in 1850.
Literature
J.M. Obreen et al., handwritten inventory list for items 944 to 1431, 1884, manuscript in HNA 476 RMA, inv. no. 1089, no. 1011
Citation
J. van der Vliet, 2016, 'I. Thyssen, Log with Two Rotating Vanes, Rotterdam, c. 1860', in J. van der Vliet and A. Lemmers (eds.), Navy Models in the Rijksmuseum, online coll. cat. Amsterdam: hdl.handle.net/10934/RM0001.COLLECT.482810
(accessed 20 April 2024 05:04:21).