A bressummer, breastsummer, and summer beam (somier, sommier, sommer, somer, cross-somer, summer, summier,A Dictionary of the Old English Language summer-tree,1913 Webster or dorman, dormant tree) in a timber framed building, is a beam which carries a load.

Mechanical Analysis and Test of Bressummer in Brick-concrete Composite Structure
CHAPTER XI. CONTINUOUS GIRDERS AND THEIR APPLICATION IN ROAD AND RAIL WAY BRIDGES–BRESSUMMER BEAMS AND WAREHOUSE FLOORS.
A Link with the Past, Present and Future; Saintbury Grounds Farm Has Undergone Several Significant Changes since Its Construction in...
The impact of long-term loading and changes in moisture content and relative humidity on timber purlins and beams
Timber roof truss
Fair House Farmhouse
Composite action of wall beam built up with concrete block
Analysis on Some Problems in Structure Design of Fundus Frame Brick House
Test of Low-cyclic Horizontal Loading and Calculation of Aseismic Bearing Capacity for Wall-Beams Supported on Frame
Dedicated collar beam, trim joist building blocks with heat-insulating layer