Raft eye
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A raft eye or Wiedloch is a hole worked into a tree trunk or timber beam, which is used to tie tree trunks and timber in rafts . In places where the beams were delivered on rafts, these holes can often still be found in old roof trusses in many places, for example in the roof truss of the Tübingen collegiate church .
functionality
Often there are up to three triangular or square-oval holes pre-notched with an ax and drilled across corners with a spoon bit at the ends of the trunk or beam. Two of the loop-like recoil holes were made to tie the trunks, usually hewn on two or three sides, into the individual raft segments, the so-called sturgeons, and the third was used to connect the sturgeons to rafts. Wieden were prepared from young tree saplings, mostly from conifers, as binding ropes .
In some raft wood, paired blind holes were drilled that do not completely penetrate the trunks. Short wedges were wedged into them, with which cross timbers laid on the raft timbers could be integrated. These served, for example, on the Main and Danube for the actual raft connection. On the upper Neckar, they were probably used to stabilize sturgeons or as a substructure for loads carried, as they only occur in combination with the recessed holes drilled across corners.
Individual evidence
- ↑ Tilmann Marstaller and Andreas Stiene: The roof works on choir and nave of Tuebingen Collegiate.
- ↑ History window in Eglosheim town hall. ( Memento of the original from October 16, 2014 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ^ Database building research / restoration: Residential house, Hospitalgasse 6, Mosbach.
- ↑ From "Relay gable crowned", "Floßaugen" and "Gestören". Teckbote, July 25, 2007.
- ^ A b Tilmann Marstaller: On land and on water. Timber imports from the 12th to 17th centuries Century in the middle Neckar area.
