Does anybody know what this apparatus is for?

thatgameguy · Jun 28, 2012

Hi folks,

I work as a Lab Technician in a High School and we've been sorting out a lot of the school's old physics equipment. I found this unknown piece of apparatus with the Wheatstone Bridges:

Photo of a wooden board apparatus with a metre scale along its top edge, a central block holding four metal bars, and metal clamps with bolts at each end; a label on the cabinet below reads Alkali metal.

Photo of a wooden board apparatus with a brass metre rule along the top, two small metal terminal blocks on the left, and a dark frame on the right holding four horizontal metal strips with black knobs at their left ends.

Photo of a wooden board apparatus with a yellow millimetre scale ruler along the top and three rows of metal strips with screw terminals on the right.

Photo of a yellow scale with black numbers 21 to 29 in two rows, beneath a white label reading W. & J. GEORGE & BECKER LTD, BIRMINGHAM 3, LONDON E.C.1.

I assume it works in a similar way to a Wheatstone Bridge but I just can't quite work out what to do with it. Does anybody recognise what it is or know what to do with it? I apologise for the poor quality of the photos!

amk_dbz · Jun 28, 2012

I think it is a Meter bridge. Search Meter bridge on google for more Information.
In brief, it is used to set up Wheatstone network and to find out unknown resistance.

Studiot · Jun 28, 2012

I think it is a slide wire potentiometer.

Does anybody know what this apparatus is for?

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