This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1868 Excerpt: ...forms part and parcel of the same, hanging on by its fourth side. The plates are then fixed to the ship's bottom proper, by means of small screws, so arranged that every square foot of iron plate would have five screws to fix it, one at each of the four corners and one in the centre, although in reality only two screws ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1868 Excerpt: ...forms part and parcel of the same, hanging on by its fourth side. The plates are then fixed to the ship's bottom proper, by means of small screws, so arranged that every square foot of iron plate would have five screws to fix it, one at each of the four corners and one in the centre, although in reality only two screws for each square foot would have to be accounted for, as regards weight and total number of screw-holes. For instance, a vessel with 22,680 square feet surface of bottom requires but 45,663 screwholes if arranged in the above manner. The screws have conical heads, are Ath of an inch in diameter, and need not enter the plates of the iron hull proper more than one-eighth of an inch. The ship's bottom may first be paid over with any paint, varnish, glue, or anti-corrosive mixtures that may be prepared. When the plates are on, the small rectangular portion at each hole is turned up at an angle of about 45; thus forming small tongues, and affording a firm hold for the cement, which is plastered on about half-aninch thick, in the usual manner of plastering a wall. 2nd. The screws for this method kare tapped into vessels' bottoms the same as described in the first method, but may be further apart. Over these screws is wire netting of about one inch or three-quarter inch mesh, when a washer with a slot in it is slipped in between the wire and the head of the screw, which when tightened to the required extent, holds the wire netting tightly to the ship's bottom; and having thus cased the ship's bottom with a wire netting, it is ready to be plastered with cement, which will be found to adhere so strongly to the wire, that when thoroughly set and hard it requires a cold chisel to remove it. 3rd. The ship's bottom may be covered with wood sheathing, one i...
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
Choose your shipping method in Checkout. Costs may vary based on destination.
Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
Choose your shipping method in Checkout. Costs may vary based on destination.
Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
