The Marble Border of Western New England: Its Geology and Marble Development in the Present Century ...

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Page 46 - Border," there are three beds of marble in Pittsford, extending north and south. "The most easterly of these has a breadth of about 200 feet, and on it was opened, in 1871, the quarry known as the Central Vermont quarry. It was successful until the great depression of 1874, from which it has not yet rallied. The marble is of the same character as that at Proctor, of which bed it is probably a continuation. The middle bed is separated from this easterly one by about 200 feet of lime rock. This bed...
Page 65 - The marble, after being sawn into slabs, is manufactured into tomb stones, tomb tables, curriers' tables, jambs, mantle pieces, hearths, window and door caps and sills, side boards, tables, sinks, and various other kinds of furniture. These articles are transported to Montreal, Quebec, Boston, New York, and even to Georgia. The machinery has sawn, annually, from five to ten thousand feet, since the year 1808/ This method of sawing by water creates a vast saving of manual labour.
Page 20 - ... to 400 feet in thickness), is for the most part siliceous, partaking of the nature of the sandrock that underlies it. The upper portion, known as the Trenton (500 to 600 feet in thickness), is impure from the presence of clayey matter, partaking of the nature of the slate formation that overlies it. Only certain layers of the middle portions seem to have been fitted by their original constitution for the production of marble.
Page 43 - As itrunsbackward and forward over the rock the machine is reversed without stopping, and as it goes the cutters deliver their strokes, it is claimed, at the rate of one hundred and fifty per minute. The machine feeds forward on the track half an inch at each stroke, cutting half an inch or more every time of passing. The single machine will cut from 40 to 80 square feet of channel per day in marble or limestone and at a cost of from 5 to 20 cents per square foot.
Page 65 - The marble in this village, which is now wrought on a large scale, and extensively diffused over the country, was discovered by Eben W. Judd, the present principal proprietor, as early as the year 1802. A building on a limited plan was erected, and machinery for sawing the marble (the idea of which had its origin in the inventive mind of the proprietor) was then first put in operation. In 1806, a new and commodious building, two stories high, and destined to comprise sixty saws, to...
Page 43 - Wardtvcll of Rutland, Vt. The first successful machine was built by him in 1863, in connection with the Sutherland Falls Marble Company, and that original machine was at work there constantly, until 1885. These machines are used by the Georgia and Southern Marble Companies, and are in operation at all the important quarries of sandstone, limestone and marble in the country.
Page 44 - The single machine will cut from 40 to 80 square feet of chaunel per day in marble or limestone and at a cost of from 5 to 20 cents per square foot. The double machine will do twice the amount of work. A good workman would formerly cut from 5 to 10 feet, that is, a groove 1 foot deep and from 5 to 10 feet long per day.
Page 43 - It carries a single gang-drill on one side, or two such drills — one on each side. These are raised and dropped by a lever and crank arrangement. The gang of cutters forming the drill is composed of five steel bars, 7 to 14 feet in length, sharpened at the ends and securely clamped together.
Page 42 - ... quarry, and all others at West Rutland are so compact, that the marble is obtained .by channeling round the blocks before they are raised. It is an interesting scene to behold two hundred quarrymen ranged in rows, in those deep quarries, each with his long sharp drill, steadily cutting deeper and longer those grooves that are destined to sunder the fetters that bind those valuable blocks to their parent bed. The musical ring of the quarrymen's drill, that reverberates to the ear from the deep...
Page 59 - Palaeozoic epoch. In England the principal manufacture is in Derbyshire, along the valley of the Derwent and the Wye, from below Buxton to Derby. The machinery for sawing and polishing was first established at the village of Ashford, near Bakewell, in 1748, water being used as the motive power.

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