An inquiry into the means which have been taken to preserve the British navy, from the earliest period to the present time, particularly from that species of decay, now denominated dry-rot
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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. 1821 Excerpt: ...of fourteen years, provided the sum did not exceed 200/. per annum. The machine remained in general use until 1736, when Mr. Boswell, a purveyor of timber in Deptford-yard, proposed to place the planks in trunks, into which the steam of boiling-water was introduced, a mode that has been continued to the present period, chiefly for timber and board employed in the building of boats. In the year 1744, boiling troughs were first placed in the The Dutch ships are usually very round and full in their bows and buttocks, and to prevent injury to the thick-stuff in bringing it round, it is common to run a sawkerf through the centre. M dock-yards: and from that time to the present, planks have been boiled as many hours as they measure inches in thickness; at some periods it has been usual to use fresh, at others sea, water, for this purpose. If the planks be well-seasoned, burning appears to be the best mode of bringing them round, as it is done with ease, and they always present a dry, if not a carbonized, surface to come in contact with the timbers of the frame. But, if on the contrary, the planks are unseasoned, boiling in fresh-water is thought to be preferable, as it enters abundantly into the timber, and carries off a considerable proportion of its juices. By dissolving some of the principles of the wood, its strength is certainly decreased; but this is to be preferred, when necessity compels the use of green timber, rather than fermentation should be promoted by its containing, when worked, a great quantity of vegetable juices. Planks that have been well-seasoned, uniformly weigh more when taken out, than when put into the boilers; those which are unseasoned, considerably less. The stoving machine, or, as it is sometimes called, the sand bath, of Mr. Cumberla...
An inquiry into the means which have been taken to preserve the British navy, from the earliest period to the present time, particularly from that species of decay, now denominated dry-rot John Knowles
Details
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. 1821 Excerpt: ...of fourteen years, provided the sum did not exceed 200/. per annum. The machine remained in general use until 1736, when Mr. Boswell, a purveyor of timber in Deptford-yard, proposed to place the planks in trunks, into which the steam of boiling-water was introduced, a mode that has been continued to the present period, chiefly for timber and board employed in the building of boats. In the year 1744, boiling troughs were first placed in the The Dutch ships are usually very round and full in their bows and buttocks, and to prevent injury to the thick-stuff in bringing it round, it is common to run a sawkerf through the centre. M dock-yards: and from that time to the present, planks have been boiled as many hours as they measure inches in thickness; at some periods it has been usual to use fresh, at others sea, water, for this purpose. If the planks be well-seasoned, burning appears to be the best mode of bringing them round, as it is done with ease, and they always present a dry, if not a carbonized, surface to come in contact with the timbers of the frame. But, if on the contrary, the planks are unseasoned, boiling in fresh-water is thought to be preferable, as it enters abundantly into the timber, and carries off a considerable proportion of its juices. By dissolving some of the principles of the wood, its strength is certainly decreased; but this is to be preferred, when necessity compels the use of green timber, rather than fermentation should be promoted by its containing, when worked, a great quantity of vegetable juices. Planks that have been well-seasoned, uniformly weigh more when taken out, than when put into the boilers; those which are unseasoned, considerably less. The stoving machine, or, as it is sometimes called, the sand bath, of Mr. Cumberla...