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  • Jim C

'Integral' Spitfire/Hurricane hydraulic pumps

Does anyone have any information about the company ‘Integral’,based in Witney,Oxfordshire,who made hydraulic pumps for Spitfires and Hurricanes (and possibly other aircraft) ? I am overhauling a few of these pumps at work and would be interested to know something about the company who made them.

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By: Jim C - 7th February 2009 at 20:45

I assumed ‘Integral’ was based in Witney after seeing this post on the ‘WW2 People’s War’ website …..
http://www.bbc.co.uk/ww2peopleswar/stories/19/a3844019.shtml
Maybe there was more than one factory?

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By: Rocketeer - 7th February 2009 at 10:38

was it on the old Smiths/Airfield site? Cannot remember much from when I lived there. A lot of Hurri tailwheels ended up on blanket trolleys at Earlys!

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By: Jim C - 7th February 2009 at 08:39

Yes,they can be very frustrating to build…they have very fine tolerances,just a couple of thou out can make them tighten up.

The only info I have found so far is from loudspeaker manufacturers Celestion’s website who mention a rival company ‘British Rola’

……….another loudspeaker manufacturer was making similar product. This was the British Rola Company, an offshoot of the Rola Company of Cleveland, Ohio, U.S.A., which began in 1934 at Minerva Road, Park Royal, London NW10.…………….
British Rola Limited was registered during 1938 as electrical and general engineers, toolmakers and stampers, and when World War Two broke out they opened up a dispersal factory at Bideford in Devon, in the former garage of Messrs Elliot and Sons. Production for the war effort grew apace with the manufacture of the R.A.F. B3 Vacuum Pump, several thousands of which were produced. These were followed into production by the Rotol Airscrew Feathering Pump, four of which were fitted to all British multi-engined bombers. The final product was the Integral Hydraulic Pump BH Mark IV, and all these items contributed in no small measure to the Forces’ need for reliable battle equipment.

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By: Bruce - 7th February 2009 at 07:27

Best of luck with those bloomin things!

When they were done in the past, they always seized up at the final nip…

I dont know anything about the company, but they made lots of other pumps as well. I found a really arcane piece of equipment with an integral label on the other day!

Bruce

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