hand pump

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hand pump

A device in a hydraulic system used to manually build up hydraulic pressure as a backup in case of hydraulic pump failure. In some earlier aircraft, the hand pump was also used to transfer fuel from one tank to another in case of electrical or pump failure. See double-acting hand pump.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
Drilling of these anomalies led to the discovery of gold mineralisation at the Handpump Prospect with significant intercepts of 15m @ 2.3g/t from 31m including 5m @ 4.7g/t from 34m and 12m @ 1.3 g/t including 5m @ 2.0g/t from 25m.
When they built the boundary wall, they built it over the handpump. Now, half the handpump is in the wall and the other half is out.
The pupils and the community dwellers said their pains have vanished since the handpumps were provided for them and that they have been enjoying the potable water.
There are three gleaming chrome handpumps in the bar and another two in the lounge.
The large bar area has four handpumps serving real ales such as Hancock's HB and guest beers from local breweries such as the Otley Brewery.