LABORATORY WORK IN APPLIED MECHANICS.
The Sinclair Laboratory for work in Strength of Materials was
founded on the original donation of Mrs. John Sinclair, of New York
City, as a memorial to her late husband. The collection has since been
considerably enlarged. It contains Riehle and Olsen machines, each of
100,000 pounds capacity, arranged for tensile, compressive, and transverse
tests; an Olsen torsion machine of 50,000 inch-pounds capacity; an Olsen
compression machine of 40,000 pounds capacity; a Ewing tester for the
elasticity of rods; hand machines for testing rods and wires under pull
and small specimens of timber and cast iron under transverse loads; Fairbanks
and Olsen cement testers of 1,000 pounds capacity each; appliances
for torsional tests on both long wires and short wires; together with the
necessary accessory measuring instruments for utilizing these machines.
The laboratory equipment for work in Hydraulics comprises a steel
tank for weir experiments with adjustable bronze notches; a hook gauge
for accurate measurement of surface levels; a cast-iron stand pipe with
adjustable bronze orifices for experiments on efflux; a series of pipes with
bends, elbows, and tees for measuring pipe friction; and the proper manometers
and gauges for reading pressures. For the field-work the outfit
of field instruments has been enlarged by a current meter of modern construction
and a set of hollow copper ball floats for direct stream velocity
measurements.
