Abrasive pipe saw
OwnerHerbert C. Southoffinventor
Life of this patent
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Abstract
A portable pipe cutter primarily intended for concrete lined pipe includes a pair of annular tracks, which are mounted in fixed, parallel relationship to each other on a pipe, a pair of rectangular plates carrying rollers for movably mounting the plates on the tracks on opposite sides of a pipe to be cut, springs resiliently interconnecting the ends of the plates, a counterweight on one plate, a rotary cutter on the other plate with a blade outside of the plate, and a tension device for adjusting the tension on the blade so that actuation of the cutter causes the device to travel around the pipe while making a cut dependent on tension on the cutter.
Claims8
A portable pipe cutter comprising a pair of track means for mounting in parallel, spaced apart relationship to each other on a pipe to be cut;
- carriage means movably mounted on said track means;
- rotary cutter means carried by said carriage means outside of one said track means for cutting into the pipe;
- and tension means for adjusting the tension of said cutter means on the pipe, whereby rotation of the cutter means causes the latter to move around the pipe on said track means and effect cutting of the pipe to a depth dependent upon the tension on said cutter means.
Dependencies are inferred from the claim text.