Cutting by use of rotating axially moving tool – Tool or tool with support – Having inversely angled cutting edge
Patent
1975-10-07
1977-03-15
Weidenfeld, Gil
Cutting by use of rotating axially moving tool
Tool or tool with support
Having inversely angled cutting edge
408 80, B23C 120
Patent
active
040117936
ABSTRACT:
A small compact and light-weight tool is provided which is capable of boring and honing in-situ the seal ring seats of different sizes of high pressure valves. The tool housing support is threaded so that after removal of the valve stem and bonnet the tool may be screwed into the valve body. The support housing is internally threaded throughout its entire length for receiving and mating with an externally threaded feed screw. The feed screw is essentially a hollow cylinder having bearings therein for rotatably supporting a drive shaft. The drive shaft is adapted at one end to be driven and is adapted at the other end to receive the cutting tool holder, the cutting tool holder extending into the valve when the tool is mounted thereon. An internally threaded positive stop ring engages the feed screw and the setting of the stop ring determines the maximum depth of boring. Boring is accomplished by rotating the drive shaft to thereby rotate the cutting tool while axially advancing the drive shaft by rotating the feed screw. The stop ring engages the support housing to stop axial advancement of the feed screw and the drive shaft when the desire depth of boring has been accomplished.
REFERENCES:
patent: 2480307 (1949-08-01), Santro
patent: 3881396 (1975-05-01), Case
LandOfFree
Portable boring bar does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Portable boring bar, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable boring bar will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-419874