Also spelt patress, sometimes used in conjunction with the term plate, otherwise termed anchor plate or tie plate (See Wikipedia). From the Latin patera meaning 'bowl' or 'saucer'. Invariably used with tie bars as lateral restraints, often in pairs and particularly to stabilise gables, often remedially, in which case these are patresses and remedial lateral restraints. In the vernacular these may be old plough shares, hence the name, but take on many forms, often plain crossed bars, but some being fashioned into decorative devices. See some manufactured pattress plates