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barton shelter m.o.d. report modules

A Hardened Structures / Hardened Shelters representative can easily supervise the installation of the Barton APD Shelter on your site.

Introductory Comments

  • Before attempting the assembly of the shelter, carefully studythe detailed drawing and the cut-away diagram.

  • All parts shown are given an item number which is marked in paint on the particular part. Check that your kit is complete and that your excavation is large enough to give space around your shelter in which to work and that adequate room has been allowed for the conning tower.

  • The method that we have adopted for the construction of the trial shelter is described below. Although we found this procedure easy, it is by no means mandatory and is offered only as a guide. After careful study you may wish to proceed along your own lines.

  • Time for construction of shelter - 3 days (two men required).

Erection guide
Stage 1: Two stout pieces of timber were laid across the width of the excavation on which to lay and support the shelter and these were leveled in both directions. [shelter dimensions are approximately: length ~4.8 m, width ~2.4m, height ~3.8m]. We then constructed the bottom half of the shelter using the angle ribs, i.e. the two bottom pieces with floor brackets, three tubular distance pieces per section and the bottom outer cover, these created a structure similar to the hull of a boat.

  • Important: Due to the shape of the shelter we put shoring chocks each side
    to stop any sideways roll. This is a must when you have reached this stage and
    make sure that they are substantial enough to give a good margin of safety as
    you will be working in a restricted space and it is easy to get trapped if the
    structure rolls. The weight of the shelter is ~3.3 tons.

Stage 2: The floor bearers were then put in place and a few floor boards were loosely laid down to assist in erection of the top half. We now bolted the top half of the shelter frame to the bottom half, piece at a time, and then fitted the outer cover, taking particular care that the ribs with the bunk holes were correctly positioned.

Stage 3: After the complete shell had been constructed we bolted on the end covers and assembled the conning tower to the shelter end covers as shown on the drawing.

  • Important: A continuous run of rubber strip was placed between each mating
    surface on the side and end cover joints to create a water-tight seal and as a precaution a run of mastic was also applied to these joints on the outside after
    final tightening of the bolts.

Stage 4: The conning tower entrance hatch seal was glued to the conning tower.

Stage 5: All the fixing bolts that had been loosely fitted were now tightened up and floor bearers and boards screwed and nailed in position, respectively.

  • Important: All bolt heads were placed on the outside with metal and a fiber
    washers fitted under the head and another metal washer under the nut.

Stage 6: The vent and exhaust pipe were then connected with their respective gaskets placed between the flange and the end cover.
Stage 7: Internal fittings were finalized and the whole external surface given two coats of bituminous paint.

Stage 8: Insulation is very important in order to prolong the life of the shelter and to prevent excessive condensation. The shelter is supplied without insulation, however, we recommend that you use Foamglas manufactured by Pittsburgh Corning. This is a cellular glass, which is water, vapor, fire, rot and vermin proof. The shelter installed at the factory has this insulation glued to the outside. As an added precaution the assembly can be wrapped in 1000 gauge polythene sheet prior to back filling.
Stage 9: The entrance hatch has been designed so that it projects approximately 12" (30cm) above the level of the surrounding soil. After back filling and shaping was carried out a smooth outline in all directions was achieved and then the complete area landscaped and turfed to prevent erosion of the top soil (concrete or natural stone slabbing can be used as an alternative).

Suggestions for Food Stores

Suggestions for Miscellaneous Stores

You should stock enough food for a close down period of approximately 3-4 days (extended to 14 days if a nuclear war prevails!) and base your selection on food that will have to be eaten cold as no cooking will be possible during the close-down period. It may be possible for a limited time only, to warm foods and boil water - this must only be carried out when the shelter hatch is open.

The following is a suggested list of food:

  • Milk, dried and evaporated
  • Canned Soups
  • Canned Vegetables
  • Canned Meats
  • Biscuits, Bread
  • Breakfast Cereals
  • Jams, spreads
  • Sweets and Chocolates
  • Fruit Juices, Tea, Coffee, Drinking Chocolate, Night-Cap Drinks
  • Sugar, butter, margarine
  • Water in closed containers (You should allow four to five pints per person per day)
  • Portable radio with aerial (aerial can be passed through the exhaust air pipe to outside)
  • Spare batteries for the radio
  • Torches/lanterns with spare batteries and bulbs
  • First-aid kit, plasters, headache pills
  • Bedding, cushions, sleeping bags and plenty of warm clothing including footwear, waterproof garments
  • Toilet articles
  • Cleaning materials. Cloths, tissues
  • Plenty of large polythene bags
  • Note book, pencils, calendar, clock, reading material, boxed games.
  • Heating and cooking utensils
  • Tin and bottle opener, cutlery, plates, bowls, mugs
  • Spade, garden trowel, socket spanner to fit escape hatch bolts
  • Just outside the shelter: dustbin, polythene bags for waste materials
  • Additional water supply in closed containers
  • Modesty screen or curtain
  • Carbon dioxide level detector
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