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Description: | A incomplete pair of cast copper alloy mathematical or surveyor's dividers dating to the post-medieval period (AD 1600-1700). The dividers have a globular knopped handle, broadly octagonal in cross section beneath which is an octagonal stem, both of which split to form a hinge between the two arms. A narrow circumferential collar is present at the base of the handle where it narrows to the arms. The main arm continues with an octagonal cross-section before narrowing to accommodate the second arm. At this point both arms acquire a trapezoidal cross-section which in turn becomes semi-circular as the arms curve upwards which, when the arms are closed, results in a circular void through both arms. One arm is broken beneath the curve while the other continues past a transverse decorative ridge below the curved element, with this remaining arm tapering through the cross section. This arm then terminates before its complete length in a sharp break.Numerous similar dividers in various stages of completeness have been recorded on the PAS database from around the country illustrating their ubiquity. For examples see: KENT-84543C, DENO-CB5F78, HAMP-04D123, NMS-618EA7, SUSS-DF4C47, SUR-010582, LANCUM-27C334.Dividers are an early type of mathematical instrument which can be used for numerous functions including geometrical operations such as scribing circles and also for taking off and transferring dimensions. Their versatility has allowed them to be a useful tool of mathematicians, designers and a variety of craftsmen which have been produced in different sizes and materials. Such implements are most common from the 16th century onward.
Original Image | Publisher: | http://finds.org.uk | Source: | Portable Antiquities | Identifier: | https://finds.org.uk/database/artefacts/ | Go to resource |
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