torsel

from The Century Dictionary.

• noun A small twisted scroll; anything presenting a twisted form.
• noun A plate or block of wood introduced in a wall of brickwork for the end of a joist or beam to rest on. Also, corruptly, torsal, tossel, tassal, tassel. When you lay any timber on brickwork, as torsels for mantle trees to lie on, or lintels over windows, lay them in loam. J. Moxon, Mech. Exercises.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Carp.) A plate of timber for the end of a beam or joist to rest on.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun carpentry A plate of timber for the end of a beam or joist to rest on.