This is a Small Nikon Pillar Stand with Rack & Pinion Adjustments.

This is an elegant compact pillar stand that appears to have been manufactured by Nikon, although the Nikon logo or name does not appear anywhere on the stand itself � only on the focus drive. The stand weighs just shy of 30 pounds with a 10 inch diameter base.

The vertical pillar is 11 inches tall and 28mm in diameter (overall height with the base is 13 inches). With the clamping support ring and the cross-bar holder installed, the total available vertical excursion is 7 inches.

The horizontal boom has a travel of approximately 4 inches via the cross block, which is keyed to prevent the boom from rotating. There is an additional 2 inches of rack & pinion motion at the end of the boom. Attached to the boom is a post with adjustable inclination. The post is 24.45mm in diameter and 77.5mm long not including the threaded cap at the bottom of the post.

On the underside of the rack & pinion mechanism are two threaded bores, both of which are empty. It appears that one would have held a clamping knob for the boom extension, and the other would have served as a guide pin for a channel in the bottom of the extension. Presently the boom is free to tip slightly from side-to-side, although the rack prevents further motion.

The focusing yoke is of more recent construction. It uses a dovetailed rack & pinion motion with a total travel of 40mm. The inside diameter of the yoke is 62mm. It is branded Nikon.

Overall condition of the stand is excellent. All the motions work very well with the exception of the missing guide screw and clamp screw mentioned above. There are department asset identifications etched into the pillar base and the cross block, as well as the focus drive, but they are neatly done (see photos).

Photo set 1820

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***MPN
***OEM Nikon
***SKU*** 30029

This is a special version of the Diagnostic Instruments copy of the Bausch & Lomb ‘S-stand’. The typical 10 inch square iron base has been replaced with a plate of aluminum 24 inches square and half and inch thick. All the upper edges and corners are generously radiused. The plate has been repainted with a black enamel. The original finish was not completely removed before repainting so the resulting finish has some extra relief to it, but it is decent in appearance.

The main pillar is 24 inches tall and 1.471 inches in diameter. It includes a stop ring for supporting the cross bar block. Both the stop ring and the block are 2 inches tall so the total vertical excursion range is 20 inches.

The boom is 19 inches long and likewise, 1.471 inches in diameter. It terminates in a holder for pin-type focus drives. Total excursion of the boom is 16 inches. There is a channel on the side of the boom that the clamp screw rides in, thus preventing the boom from rotating during adjustment.

All motions work very smoothly. Diagnostic Instruments use special plastic guide bushings within the clamping block allowing very tight tolerances while preserving the sliding finish of the components.

Photo set 1819

BMI Surplus, Inc. is your best resource for microscopes and microscope components. We will work with you individually to find the perfect microscope for your application. For the most competitive pricing contact us by phone or click the purple �Ask us a question�� link above. We look forward to working with you!
***MPN
***OEM Diagnostic Instruments
***SKU*** 30028

This is a special version of the Diagnostic Instruments copy of the Bausch & Lomb ‘S-stand’. The typical 10 inch square iron base has been replaced with a plate of aluminum 24 inches square and half and inch thick. All the upper edges and corners are generously radiused. The white painted finish shows evidence of much abuse, but the actual plate itself appears to be undamaged. It would be a simple matter to refinish the base but we will leave that up to the purchaser.

The main pillar is 24 inches tall and 1.471 inches in diameter. It includes a stop ring for supporting the cross bar block. Both the stop ring and the block are 2 inches tall so the total vertical excursion range is 20 inches.

The boom is 19 inches long and likewise, 1.471 inches in diameter. It terminates in a holder for pin-type focus drives. Total excursion of the boom is 16 inches. There is a channel on the side of the boom that the clamp screw rides in, thus preventing the boom from rotating during adjustment.

All motions work very smoothly. Diagnostic Instruments use special plastic guide bushings within the clamping block allowing very tight tolerances while preserving the sliding finish of the components.

Photo set 1818

BMI Surplus, Inc. is your best resource for microscopes and microscope components. We will work with you individually to find the perfect microscope for your application. For the most competitive pricing contact us by phone or click the purple �Ask us a question�� link above. We look forward to working with you!
***MPN
***OEM Diagnostic Instruments
***SKU*** 30027