Mitre clamp and the Maestro Mitre Clamp. Mitre clamp Mitre clamps are designed to hold mitre joints together. The earliest mitre clamps are a simple spring in a C-shape with sharpened points that are sprung onto the outside corner of the mitre joint. The right angled plates are higher than the screws and the red holder. The screws go under the frame (work-piece) to be held, and the red bit clamps down on the lower-edge of the frame. Recent designs are more complicated; a rigid body holds one fixed and one moveable jaw activated by a cam. Examples of the newer clamps
Mitre including abbots. It substituted for the helm of military arms, but also appeared as a crest placed atop a helmet, as was common in German heraldry. In the Anglican Churches, the mitre is still placed above the arms of bishops instead of the ecclesiastical hat. In the Roman Catholic Church, the use of the mitre above the shield on the personal arms of clergy was suppressed in 1969, and is now found only on some corporate arms, like those of dioceses. Previously, the mitre was often included under the hat, and even in the arms of a cardinal, the mitre