FREE BOOKS

Author's List




PREV.   NEXT  
|<   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20   21   22   23   >>  
ilasters, 69 ft. 10 in. over all. The forms of the 4-ft. belt and beading were made in twelve sections of simple segments and vertical lagging, as shown in Fig. 2. Two sets of the outside forms were split longitudinally, as shown in Fig. 2, and used to form the small pilasters. The first set was put in place, filled, and the concrete allowed to harden. The bolts were loosened and the forms raised 5-1/2 in. vertically, again bolted up, and the second set was placed in position, bringing the top of the second set up to the bottom of the cornice. The bases and capitals of the small pilasters were moulded on afterward. The cornice forms are clearly shown in Fig. 2. The small boxes separating the dentils are made of light stuff, and tacked into the cornice forms so that, in stripping, they would remain in place and could be taken out separately, in order to prevent breaking off the corners of the dentils. A number of outside and inside sections were sawed in half horizontally in order to provide forms for the parapet wall. The inside diameter of the tank is 8 in. greater than the inside diameter of the base. Two sets of inside forms were split longitudinally and opened out, as shown in Fig. 2, and another small section was added to complete the circle. The remaining set was left in place to support the dome forms. The dome forms were made in twelve sections, bolted together to facilitate stripping. All ribs and segments were cut to size on the ground, put together in place, and then covered with lagging and two-ply tar paper. The lagging on the lower sharp curve was formed of a double thickness of 3/8-in. spruce, the remainder being 1 by 4-in. pine, sized to a uniform thickness of 7/8 in. Fig. 3 shows the construction of these forms and the method of putting on the lagging. The roof forms were made in eight sections and bolted together to facilitate stripping. All ribs and segments were cut to size on the ground, put together in place, and covered with 1 by 4-in. lagging, dressed to a uniform thickness of 7/8 in., and two-ply tar paper. Fig. 3 shows the construction of these forms. The segments being put in horizontally instead of square with the lagging, gave circles instead of parabolas, making them much easier to lay out, and giving a form which was amply stiff. The question of using an inside scaffold only was carefully considered, but owing to the considerable amount of ornamentation on the outside, nece
PREV.   NEXT  
|<   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20   21   22   23   >>  



Top keywords:

lagging

 
inside
 
segments
 

sections

 

stripping

 

thickness

 

bolted

 

cornice

 
dentils
 

construction


uniform

 

facilitate

 

ground

 

diameter

 

horizontally

 

covered

 

twelve

 

longitudinally

 

pilasters

 

formed


scaffold
 

carefully

 
ornamentation
 

support

 

amount

 

considerable

 

considered

 

method

 

putting

 

making


remaining

 

parabolas

 

dressed

 
circles
 

easier

 

spruce

 

question

 
double
 

remainder

 

giving


square

 

position

 

bringing

 

vertically

 

raised

 

bottom

 

separating

 

afterward

 

moulded

 

capitals