# Graseby

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**Graseby** was a British engineering company.

## History

As Graseby Instruments it made and refurbished naval sonar equipment. The company (00385807) was established on 25 February 1944. It was initially situated in [Tolworth](/source/Tolworth) in south-west London.[1]

On 1 January 1982 it merged with Pye Dynamics forming **Graseby Dynamics** and moved its operations to the latter's site in Bushey, Hertfordshire. Graseby Dynamics' business activities were:

- Marine - the ex-Instruments services,

- Medical - principally Cot Death Monitors and Continuous Syringe Drivers,

- Ordnance - including test and post-design services,

- RF products - specialist services and the manufacture of Personal Locator Beacons (PLBs),

- Ionics/Security/Analytical providing vapour detectors based up Ion Mobility Spectrometry - the three identities addressing the Military, Civil and Space markets respectively.

Later Graseby Dynamics became part of Cambridge Electronic Industries plc. As part of a rationalisation process Cambridge Electronic Industries later changed it name to Graseby plc in January 1992 - a process it extended to many of its remaining subsidiaries, e.g. Newmarket Semiconductors became Graseby Semiconductors

In April 1988 Graseby Ionics won the [Queen's Award for Technological Achievement](/source/Queen's_Award_for_Technological_Achievement) for CAM, a hand-held chemical agent monitor.

In May 1992 Graseby plc bought Intertest.

On 7 August 1997 it was bought for £136m (US$216.7m) by Smiths Industries.[2]

On 16 March 1998 Smith Industries sold Graseby Andersen and Graseby Product Monitoring to Thermo Electron. Graseby Product Monitoring included Goring Kerr,[3] Best and Allen Coding was absorbed by Thermo Sentron for US$43m. Thermo Sentron also owned competing brands such as Ramsey and Icore. Thermo Instrument Systems acquired Graseby Andersen. The aggregate price was US$73 million. Combined revenues of these companies were US$78 million.

## Products

- Sonar equipment
- [Torpedo decoys](/source/Sonar_decoy)
- Gyroscopes for [inertial navigation](/source/Inertial_navigation_system) of guided missiles in a [gimbal](/source/Gimbal) system.
- Chemical agent monitors (Graseby Dynamics)
- Metal Detector (Graseby Goring Kerr)
- X-Ray (Graseby Goring Kerr)
- Checkweigher (Graseby Best)

## Alumni

- Godfey and Hilda Sharman, Founders of Graseby Instruments, 1940 - 1982
- [Paul Lester](/source/Paul_Lester_(businessman)), former Chief Executive from 1990–97
- Steven Glick, General Counsel, Graseby plc, 1992-96
- Dave Johnson, President, Graseby Volkman, Graseby Goring Kerr
- Tim Coombs, Managing Director, Graseby Medical, Graseby Product Monitoring
- Ping Wu, Sales Director, Graseby Goring Kerr
- David Reid, Director, Goring Kerr Metal Detection
- John Cooper, Graseby plc
- Tim O'Brien, Graseby Volkman

## See also

- Graseby, a brand of [syringe pumps](/source/Syringe_driver) of [Smiths Medical](/source/Smiths_Group)

## References

1. [Flight International August 1962](https://www.flightglobal.com/FlightPDFArchive/1962/1962%20-%201607.PDF)

1. ["Smiths Industries continues acquisition strategy with £136 million purchase of Graseby"](https://medtech.pharmaintelligence.informa.com/MT085611/Smiths-Industries-continues-acquisition-strategy-with-pound136-million-purchase-of-Graseby). *Medtech Insight*. 11 August 1997. Retrieved 7 January 2021.

1. [Goring Kerr Metal Detectors](https://www.Goring-Kerr.com)

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Adapted from the Wikipedia article [Graseby](https://en.wikipedia.org/wiki/Graseby) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Graseby?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.