Pipe Marking Gauge (Patent No: 559882)

Inventor: Bruning, Herman F.

Location: Edmonton

Comments: N/A

Description:
Issued July 8, 1958

Herman F. Bruning, Edmonton, Alberta, Canada. Application August 30, 1957, Serial No. 735,621. In the United States March 1, 1957
2 Claims.

1. In an instrument for use in branch layouts between intersecting conduits comprising a support member juxtapositionable longitudinally of the outer surface of a first conduit, an extensible and retractible scribe member reciprocably supported on the support member, transverse aperture means through an intermediate portion of the scribe member, the terminal end and the aperture portion of the scribe member denning a pair of complimentary points of a branch layout of a pair of intersecting conduits; means for detachably retaining the support member on the first conduit, said means comprising a pair of opposed laterally extending support wing members pivotally secured at one edge longitudinally of the support member, and detachable fastening means engageable on the outer surface of the first conduit permitting the support member to be alternately positioned about the circumference of said first conduit wherein the scribe member will progressively define complimentary points of a branch layout between the first conduit and an intersecting conduit, said wing members being pivotal to accommodate the support member on conduits of varying diameters.

2. In an instrument for use in branch layouts between intersecting conduits comprising a support member juxtapositionable longitudinally of the outer surface of a first conduit, an extensible and retractible scribe member reciprocably supported on the support member, transverse aperture means through an intermediate portion of the scribe member, the terminal end and the aperture portion of the scribe member defining a pair of complimentary points of a branch layout of a pair of intersecting conduits; means for detachably retaining the support member on the first conduit, said means comprising a pair of opposed laterally extending support wing members pivotally secured at one edge longitudinally of the support member, and detachable fastening means engageable on the outer surface of the first conduit permitting the support member to be alternately positioned about the circumference of said first conduit wherein the scribe member will progressively define complimentary points of a branch layout between the first conduit and an intersecting conduit, said wing members being pivotal to accommodate the support member on conduits of varying diameters, said detachable fastening means comprising bar magnets extending along the edge of the wing members remote from the pivotal connection thereof with the support member.