Accession No

4446

Brief Description

ullaging rule by Quin, 19th C

Origin

London; England

Maker

Quin

Class

calculating

Earliest Date

1800

Latest Date

1900

Inscription Date

Material

ivory; metal (brass); wood

Dimensions

length 236mm; width 502mm

Special Collection

Provenance

Inscription

‘QUIN . LONDON’ (one edge)

Description Notes

Ivory ullaging rule with double slides, bound in brass, with wooden runners for slides.
One side: upper part of stock carries equal scale of per cent below and above proof (given as Sikes’s proof), divided [33] - P [0] - [12], numbered by 5, subdivided to 1. First slide carries scale labelled ‘indication’, divided [49.8] - [78.8], numbered by 1, subdivided to 0.2. Central part of stock carries double radius log scale marked ‘Seg St’ (segment standing), divided [0.7] - 100, numbered 1, 2...10, 20...100. Second slide carries two identical double radius log scales marked ‘B’ and ‘C’, divided 1 - 10[0], numbered 1, 2...1[0], 12, 2[0], 3[0]...10[0] with gauging points marked ‘MB’ and ‘A’. Lower part of stock carries double radius log scale marked ‘Seg Ly’ (segment lying), divided [0.2] - 100, numbered 1, 2...10, 20...100.
Other side: upper part of stock carries scale marked ‘A’ identical to ‘B’ and ‘C’ from previous side. First slide carries identical scales marked ‘B’ and ‘C’, both the same as ‘A’. Central part of stock carries equal scale of ‘per cent over proof’, divided 5 - [43], numbered by 5, subdivided to 1. Second slide carries two equal scales, upper divided [24.2] - 58 numbered by 1 subdivided to 0.2, lower divided 10 - 35 numbered by 1 subdivided to 0.2. Lower part of stock carries two scales: first is ‘per cent over proof’ divided [38] - [57], numbered by 5, subdivided to 1; second is ‘thermometer scale’ divided 30 - 80, numbered by 10, subdivided to 1.

Condition good; complete

References

Events