Finger grip spirit level

摘要

A device for measuring the level of the end surface of a pipe, comprising a body, a planar reference surface, and a retractable spring-loaded finger extendable through and below the planar reference surface to engage the inside surface of the pipe and secure the level in place. The level body may comprise an elongated body having an elongated chamber and an elongated reference plane, said plane comprising at least one reference surface and at least one opening to the chamber.

主权项

1. A level for measuring the level of a pipe end comprising:
a body; a planar reference surface having an opening; and at least one downwardly depending member extending from the body below the plane of the reference surface through said opening and having a contact portion for contacting the pipe wall.