Accession No

2726

Brief Description

G. Robben's patent clinometer and plumb level, by W. H. Harling and Chesterman, English, 1907

Origin

England; London [W. H. Harling]; Sheffield [Chesterman]

Maker

W. H. Harling Chesterman

Class

surveying

Earliest Date

1907

Latest Date

1907

Inscription Date

1907

Material

metal (aluminium, brass, steel); glass; wood

Dimensions

box length 190mm; breadth 195mm; height 86mm

Special Collection

Provenance

Purchased from Humbleyard Fine Art, Waterfall Cottage, Swanton Morely, Norfolk, England in 02/1981.

Inscription

‘CHESTERMAN
SHEFFIELD’ (tape)
‘G. ROBBEN’S PATENT
No. 27165 DECR. 1907’ (outer casing)
‘W.H. HARLING MAKER LONDON.’ (outer casing)

Description Notes

Circular outer casing of two plates of aluminium; graduated 0-45-0 x 4 to 1˚. Brass casing between plates. Spindle and reel inside box with steel tape wound round reel; brass hook on end of tape. Tape graduated in inches. Reel fixed by catch and spring (broken). Single bubble level on brass plate pivotting round centre point with index on ends of plate. (Patent mentions more usual form with 3 bubble levels); steel index pivots freely from centre point. Brass bail handle opposite tape and hook. Hinged brass winding handle for reel. Fitted wooden box.

References

Events