Balance Wheel Calipers

Object/Artifact

Sidney Museum and Archives

Name/Title

Balance Wheel Calipers

Entry/Object ID

2009.016.009

Description

Complex steel double caliper, with brushed finish, said to be a balance wheel caliper. Both sets of jewels [which end fine points] adjusted by a central knurled wheel thumbscrew. Each set of jaws has a central thin, flat metal bar that pivots around a stationary screw attached to one of the jaws, and this bar also is adjustable by means of a slot [not identical length on both bars] which fits around the stationary screw. [The screws holding the bars are set in opposition on the two sets of jaws]. Screwed to the centre of each bar is a blued metal fitting for a sharp point which pivots in this fitting. [Not identical on each bar]. One face stamped: "Watch-Craft/Manufactured by/C. & E. Marshall Co.". One of the bars stamped: "Swiss".

Acquisition

Source (if not Accessioned)

Rust, Connie

Notes

Accession Date: 08-Jul-09 Mode of Acquisition: gift

Lexicon

Legacy Lexicon

Object Name

calipers, balance wheel calipers

Class

Science & Technology, Tools & Equipment for - Timekeeping T&E - None Required

Created By

Jones, Isabel

Create Date

September 15, 2010

Updated By

[email protected]

Update Date

May 15, 2025