Alameda Taper Sine Blocks reduce the tapered measurement of tapered pipe gages to a straight line measurement.
Pitch Diameters can be checked by the three wire method commonly used in the measurement of parallel thread gages. The pitch diameter is measured over the best wires for each size gage. The major diameter at the small end of the gage is measured directly on the block. Any error in the required W’ per foot taper is shown as a deviation from the straight line measurement.
These sets of sine blocks are intended for use in either a vertical or horizontal amplifier with a large fixed platen.
Alameda Taper Sine Blocks for measuring pipe thread plug gages in a vertical position.
Two Taper Sine Blocks are required to cover the range of sizes from X6″ to W’.
The second size checks X” to 3″.
For measuring pipe thread plug gages in a horizontal measuring machine.
Range 1/16″ to 3″
Range 1/16″ to 3/8″
Range 1/4″ to 3″