Specialized form of the Compound Microscope!
Mfr.: Bausch & Lomb , Style: OM , Type: Brinell , Condition: Very Good+++ , Power: 20X. Designed for measuring the impressions made during the Brinell Ball Test for estimating the hardness of a metal. A 7-millimeter long stage micrometer is provided. The micrometer is etched on opal glass, and is set in a metal disc with rulings in single millimeters, numbered from 0 to 7.
Tube is fitted with a scale reading 7 millimeters in divisions of a tenth of a millimeter. Since every tenth line of the ocular micrometer coincides with each millimeter line under the objective, the eyepiece scale is read directly in millimeters and fractions of a millimeter. The stage scale permits comparisons with the eyepiece micrometer and should be checked periodically to determine if recalibration is necessary.
The focusing tube slides in the body tube, and carries a Ramsden eyepiece and an achromatic objective. Once the user obtains sharp focus, the focusing tube is clamped down with an adjustable ring. B&L set this at the factory, and is still set perfectly. The interior of the tube surrounding the cutout portion is finished in white to increase the illumination of the specimen. The draw tube of the Brinell microscope is natural brass, while the outside body tube is smooth black enamel, and the inside is painted white.
Nice Scope Here...Don't Miss Out!
US Buyer to pay $10.50 shipping / handling, Canadians pay USPS PM, Others USPS.
Asking $250.00 + Shipping
E-mail or call with any questions, Jeff. (248) 568-6824 Jeff.Dye.com