marked with the end of a trowel, called flat-joint pointing; but if, in addition to flat-joint pointing, plaster be inserted in the joint with a regular projection, and neatly paved to a parallel breadth, it is termed hick pointing, or hick-joint pointing, or formerly, hick, and patt. Pointing is measured by the foot superficial, including in the price, mortar, labour, and scaffolding. Rubbed and gauged work is set in putty or mortar; and is measured either by the foot superficial, or the foot run, according to the manner in which it is constructed. In measuring canted bow windows, the sides are considered as continued straight lines; but the angles on the exterior side of the building, whether they be external or internal, are allowed for in addition, and paid for under the denomination of run of bird's mouth. All angles within the building, if oblique, from whatever cause they are made, either by straight or circular bows, or the splays of windows, are allowed for, under the head o run of cut splay. Brick cornices are measured by the lencal foot; but as various kinds of cornices require more or less difficulty in the execution, the price must depend on the labour and the value of the material used. Garden walls are measured the same as other walls, but if 'nterrupted by piers, the thin part may be measured as in common walling, and the piers by themselves, making an allowance, at per foot run, for the right angles The coping is measured by itself, according to the kind employed. Paving is laid either with bricks, or tiles, and is measured by the yard square. The price, per yard, is regulated by the manner in which the bricks or tiles are laid, whether flat or edge-ways, or whether any of them be laid in sand or mortar. The circular parts of drains may be reduced either to the standard, or the cubic foot; and the number of rods may, if required, be taken. The mean dimensions of the arch may be found, by taking the half sum of the exterior and interior circumferences; but, perhaps, it were better to make the price of the common measure, whether it be a foot, yard, or rod, greater as the diameter is less; but as the reciprocal ratio would increase the price too much in small diameters, perhaps prices at certain diameters would be a sufficient regulation. The following tables will be found an acquisition to those persons to whom a saving of time is an object: TABLE I. This Table shews what quantity of bricks are necessary to construct a piece of brick-work of any given dimensions, from half a brick to two bricks and a half in thickness; and by which the number for any thickness may be found. This Table is at the rate of 4500 bricks to the rod of reduced brickwork, including waste. Area of The number of bricks thick and the quantity required. The left-hand column contains the number of superficial feet contained in the wall to be built: the adjacent columns shew the number of bricks required to build a wall of the different thicknesses of 4, 1, 14, 2, and 24 bricks. Example. Suppose it be required to find the number of bricks necessary to build a wall 1 brick thick, containing an area of 5760 feet? First look for 5000 in the left hand column, and you will find that it takes 55,147 bricks, add to this quantity, the number necessary for each of the other component parts, and we shall have the following 5000 will require 55147 Shews the number of rods contained in any number of superficial feet, from 1 to 10,000, and from a brick to 2 bricks; and thence by addi tion, to any number, and to any thickness, at the rate of 4500 bricks to the rod. Feet brick. 1 brick. 1 brick. 2 bricks. 2 bricks. R. Q. F. In. R. Q. F. In. R. Q. F. In. R. Q. F. In. R. Q. F. In. 0 0 10 00 1 4 00 18 Bried 0 0 0.4 0 0 08 9000 11 0 8 0 22 0 16 0 10000 12 1 1 4 24 2 2 8 36 3 4 0 49 0 5 4 61 1 68 The left-hand column contains the area of the wall in superficial feet; the adjacent columns the quantity, reduced to the standard thickness, according to the different thicknesses on the top. Example. What is the quantity of reduced brick-work in a wall containing4540 superficial feet, 2 bricks thick? Divide the number as in the preceding table, into its component parts. say 4540 4000 + 500+40, then by the table. Snews the value of reduced brick-work per rod, calculated at the several prices of £3 5s. £3 10s. £3 15s. £4 Ôs. £4 5s. and £4 10s. per rod for mortar, labour, and scaffolding; and of bricks from £1 10s. to £3 Os. per thousand; allowing 4500 bricks to the rod. Mortar and Mortar and Mortar and Mortar and Mortar and Mortar and 016 11 016 16 017 1 017 6 017 11 0 2 18 016 6 Example. What is the price of a rod of brick-work, when the rate of bricks is £2 2s. per thousand, and the price of mortar £4 5s. per rod? Look from the given column of bricks until you come under £4 5s. the given price of labour and mortar, and you will find £13 14s. the price of the rod. |