Plumb bob without tilting has bob body with adjustment angle on its upper end facing chord housing that interacts with adjustment angle on hollow chamber closure bolt

摘要

The device has a hollow body (11) and a plumb chord coaxially joined to it, whereby the plum chord is joined to a closure bolt (17) via a chord housing (13) and the bolt is reversibly joined to the plumb bob body via a threaded cylinder. The body has an adjustment angle (21) on its upper end facing the chord housing that interacts with an adjustment angle (22) on the closure bolt.