History in Structure

Trow Rock Floating Platform

A Grade II Listed Building in Horsley Hill, South Tyneside

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Coordinates

Latitude: 54.9932 / 54°59'35"N

Longitude: -1.4009 / 1°24'3"W

OS Eastings: 438429

OS Northings: 566682

OS Grid: NZ384666

Mapcode National: GBR LBNP.HV

Mapcode Global: WHD4S.GR4G

Plus Code: 9C6WXHVX+7J

Entry Name: Trow Rock Floating Platform

Listing Date: 11 July 1986

Grade: II

Source: Historic England

Source ID: 1232338

English Heritage Legacy ID: 407705

ID on this website: 101232338

Location: South Tyneside, Tyne and Wear, NE33

County: South Tyneside

Electoral Ward/Division: Horsley Hill

Parish: Non Civil Parish

Traditional County: Durham

Lieutenancy Area (Ceremonial County): Tyne and Wear

Church of England Parish: South Westoe

Church of England Diocese: Durham

Tagged with: Architectural structure

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Description


1.
5102
NZ 36 NE 12/89 TROW POINT
Trow Rock Floating Platform
II

2.

Casing of Clarke Maxim Disappearing Platform, for 6-inch breech-loading gun.
1887 for the Inspector General of Fortifications, for experimental trial purposes.
Mass concrete. Cylindrical shape of approx. 21 feet internal diameter with
west extension for approach tunnel. Rough-shuttered exterior. Interior shows
runners for steel floating platform (now removed) and entrance to tunnel.
Structure is sunk deeply into the ground to accommodate the water upon which
the platform rose and fell, actuated by air pressure pumps, and is now largely
filled with earth.

Historical note: Trials of platform took place on 15th and 16th December 1887.
It was found that the raising and lowering of the platform was too slow and
the system was abandoned in favour of the quicker and cheaper Elswick
hydro-pneumatic mounting.

Of historical interest as a relic of late C19 artillery development experiments.


Listing NGR: NZ3842966682

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