File:Cannon Pinion Tightening Tool (48708821801).jpg

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Cannon pinion tightening tool, Bergeon 30001 brass and steel tool with U-indentation where 2 chisel-shaped rods meet in centre, with screw below. Steel part on one side for tightening. Wooden box. On tool is "BERGEON / MADE IN SWITZERLAND" and "44", on box lid is sticker reading "MADE IN SWITZERLAND / BERGEON / FABRICATION SUISSE", inner box "GRS" handwritten, base of box "30001 10-9 / 55/" in pencil. The cannon pinion of a watch is mounted on the centre wheel, which revolves once and hour and has the minute hand mounted on it. because it is necessary to move the hand forwards or backwards when resetting the time, the cannon pinion is friction tight, enough for the centre wheel to carry the hand forward, but loose enough to allow the hand to be reset either way if required. If adjustment is needed, this tool is used for tightening the cannon pinion. 

Part of the Applied Arts and Design collection. 

Credit Line: Collection of Auckland Museum Tāmaki Paenga Hira, 2004.51.9 

For more details visit <a href="http://www.aucklandmuseum.com/collections-research/collections/record/am_humanhistory-object-608565" rel="noreferrer nofollow">www.aucklandmuseum.com/collections</a>
Images released under a CC-BY licence. Auckland Museum 2019
Date
Source Cannon Pinion Tightening Tool
Author Auckland Museum Collections from Auckland, Aotearoa New Zealand

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This image was originally posted to Flickr by Auckland Museum Collections at https://flickr.com/photos/182826961@N04/48708821801. It was reviewed on 27 August 2021 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

27 August 2021

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current01:09, 27 August 2021Thumbnail for version as of 01:09, 27 August 20218,688 × 5,792 (15.38 MB)Tm (talk | contribs)Transferred from Flickr via #flickr2commons

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