Band 
Vol. I.
Seite
55
JPEG-Download
 

BEI

55

BEI

Wall, including Apertures.

4 J bricks.

3 bricks.

2J bricks.

2 bricks.

Footing* ofplace bricks

ft. in.-

286 0

6

ft. in.

286 0

5

ft. in.

338 0

4

fit. in.26 08*

3)1716 0

3)1430 0

3)1352 0

208 013 0

572 0

476 8

450 8

3)221 0

73 8

1J brick.

ft.

in.

260

0

450

8

- 476

8

572

0

1759

4

700

11

272)1058

816

5(3 rds.

242

feet.

2J bricks.

Deductions from Wall .

ft. in.

58 45

3)291 8

97 2

2 bricks.

ft. in.

40 104

3)163 4

54 5

li brick.

ft. in,

100 438 37 11143 697 254 549 6209 10

700 11

1 brick.

ft.

in.

34 034 06 3

74 32

3)148 6

49 6

J brick.

ft. in.

48 068 081 8120 081 098 0133 0

629 8

1

3)629 8209 10

Instead of dividing by 3, as in the above abstract, itWould be easier to add the products of the half brickwork,both for the walling and for the deductions, and substract

the deductions from the walling; divide the differenceby 3, and the quotient by 272, should it be found neces-sary.

Wall , including Apertures.

bricks.

3 bricks.

2J bricks.

2 bricks.

ft. in.

ft. in.

ft. in.

ft. in.

26 0

286 0

286 0

338 0

H

6

5

4

208 0

1716 0

1430 0

1352 0

13 0

221 0

1J brick.

ft. in.

260 03

780 01352 01430 01716 0

5278 02103 2

3) 3174 10

272)1058 3(3 rods 242 feet.816

242

Deductions from Wall .

2J bricks. 2 bricks. 1£ brick. 1 brick. % brick.

ft. in.58 45

ft. in.40 104

291 8

163 4

1J brick.

ft.

in.

100

4

38

3

7

11

143

6

290

0

3

870

0

291

8

163

4

148

6

629

8

2103

2

ft. in.34 034 06 3

74 32

148 6

ft. in.48 068 081 8120 081 098 0133 0

629 8

1

629 8

The other parts of the above abstracts are as in the pre-ed ' n g> and are, therefore, not again repeated.

-A- Wall common to two houses, the properties of differentj ra °ns, is termed a party wall; but if a building stands^sulated, the walls which join the entrance to the rear fronte j, Ca \led flank walls. Chimneys are generally carried up,tirri P art y wall 3 ) flank walls, or partition walls, and some-r ear * 1U t b em > hut never, or very seldom, in the front ortlii Y a hs. When the walls which contain the chimneys arebre u 11 becomes necessary to form a projection of sufficient0 f and depth, for the reception of the flues, or as manyis e em as can he collected into one stack. This projectionand - nerall y a rectangular prism, showing three vertical sides,'j.J 3 termed the chimney-breast, or breast of the chimney.of a metliQd of measuring the solid contents of every partprjgjj^'ifling, is to reduce all the parts into rectangularfr 6 q u ’ an< i then find the solid contents of each prism. Ity happens, that walls consist of a cluster of prisms,All an 111 ^ differently divided, in order to separate them,

deducted p 63 0r CJ tvities of any consequence, ought to beContract ^ m the measure, whether the proprietor or theNation r° r mat erials; but as every return or termi-

&Hce ouo-bf 11163 more trouble than a continued wall, an allow-° to be made in lineal measure, upon every foot of

angles, or terminations, as before-mentioned, for the troubleof plumbing, leveling, and straighting. It is true, that agreat length of wall requires several intermediate plumbings,but then, as they are only regulated upon the face, the troubleis small in comparison to what is required in a vertical termi-nation, or a deflection of the wall from its course, by anotherreturn wall at an angle with it; and as these plumbings maybe made at regular distances, the parts of the wall may besaid to be uniformly built, and the same in all equal lengthsof walls, and the time proportional to the quantity under thesame circumstances of height and thickness, and thereforethe area or solidity is a fair ratio of the price : and farther itis evident, that the greater the number of apertures or vacui-ties, in the same length of wall, the more trouble willthey occasion the workmen, since more time is requiredto form the sides of the apertures, or the boundaries of thevacuities. In this case, therefore, the time of completing awall of given dimensions, even with the same quality of work,depends upon the number of quoins that are to be built, andconsequently cannot be determined by the solidity of the wall,but jointly by this measure and the lineal quantity of angles;for the solidity is not as the time, when the number of quoinsare increased, and consequently the price not as the time;but the price may be made up by the increase of the angles.