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Antifriction Clasp. (open access)

Antifriction Clasp.

Patent for a new and improved anti-friction clasp. This design "is to provide means whereby the wear due to the rubbing of inclosed rods or ropes against an inclosing casing may be reduced to a minimum and whereby the central alignment of the rods or ropes with respect to the inclosing casing may be accurately preserved" (lines 11-17). It consists in "a series of friction balls or rollers mounted therein and projecting from the periphery thereof and being divided into sections adapted to be clamped at any point around the rod or rope" (lines 97-101).
Date: October 25, 1892
Creator: Black, William L.
Object Type: Patent
System: The Portal to Texas History

Lampsilis bracteata, Specimen #1552

One preserved mussel specimen including both the left and right valves. The specimen exhibits an oval shape; white internal coloring; tan external coloring; no external sculpturing. The specimen measures between 60 - 100 mm in length and was assessed to be very-recently dead when collected.
Date: May 25, 1963
Creator: Preston, J. R.
Object Type: Specimen
System: The UNT Digital Library

Lampsilis bracteata, Specimen #1553

One preserved mussel specimen including both the left and right valves. The specimen exhibits an elliptical shape; white internal coloring; tan external coloring; no external sculpturing. The specimen measures between 0 - 60 mm in length and was assessed to be very-recently dead when collected.
Date: May 25, 1963
Creator: Preston, J. R.
Object Type: Specimen
System: The UNT Digital Library