G - Physics – 01 – B
Patent
G - Physics
01
B
G01B 5/08 (2006.01) A61B 5/103 (2006.01) A61B 5/107 (2006.01)
Patent
CA 2112546
A device which measures the overall diameter of groups of hairs or fibers and reduces the work required to obtain their statistical parameters. In the preferred embodiment an outer hollow cylinder is mounted between the measuring surfaces of a micrometer. An inner edge of a trough made in the cylinder articulates with an edge of a half cylindrical portion of a piston moving within it by means of a handle; the two parts thereby making a window with diametrically opposed halves. A spring presses the piston edge to the trough edge by sliding the piston on slopes against two parts with short steps and a block disengages one end of the piston to let hair in when open. An elongated step with a railing is placed under the piston half cylinder thus making the window into a face of a hollow triangular prism. The railing rises higher than the edge of the trough so that when the piston and trough edges nearly meet the elongated bottom step must turn and bend the hairs. Closing the window in one dimension therefore lays the hair single file and on their major ellipsoidal axis. In the second dimension the hairs slide with minimal friction due to their edge contacts within the device. When the fibers begin to compress one another they tilt characteristically and their total thickness can be read by the micrometer. A hair stop placed under the functional corner of the trough maintains the hair perpendicularly oriented in the window.
Mcfadden Fincham
Nissimov Joseph N.
LandOfFree
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