An apparatus utilizing filter-fluorescer combinations is provided to measure short bursts of high fluence x-rays above 120 keV energy, where there are no practical absorption edges available for conventional filter-fluorescer techniques. The absorption edge of the prefilter is chosen to be less than that of the fluorescer, i.e., E/sub PRF/ < E/sub F/, contrary to the prior art technique E/sub PRF/ > E/sub F/. In this way, the response function is virtually zero between E/sub PRF/ and E/sub F/ and well defined and enhanced in an energy band of less than 1000 keV above the 120 keV energy.
A cylindrical eddy current tube testing probe is disclosed. Current flow in dual electromagnetic coils separated by an eddy current sensing coil is so directed that magnetic fields of the electromagnet coils have components extending in opposite directions axially of the tested tube and components extending radially of the tube which add in the region of the eddy current sensing coil.
Patent for a sanding apparatus for locomotives, which dispenses sand on the tracks for a better grip. This device prevents the system from being clogged with wet sand and can be easily turned on and off.
Patent for improvements in lapel-springs for coats and similar articles of clothing by using a loop-shaped spring and a rod or bar pivotally connected with or hinged to both ends of the spring. It will hold the lapels of a coat or similar garment in proper position. Illustration is included.
Patent for a new and useful improvements in wire tighteners. This design "consists in features of construction and novel combinations of parts in a wire tightening device for repairing wire fences and attaching wires to fence-posts" (line 13-16).