UNIVERSAL PORTLAND CEMENT CO. 
93 
W. H. Limberg, of Plymouth, Wisconsin, has invented a silo mold for 
concrete silos which has been used with great success in Wisconsin and 
adjoining states for several years. A large number of con- 
J^- ^- Crete silos have been built with his forms. An advantageous 
Limberg feature of the Limberg concrete silo mold is the fact that it is 
practically 6 feet in height, consisting of two rings or circles so that six 
feet per day of wall can be poured. This feature decreases the time re- 
quired for building. The molds are made of 18 gauge galvanized sheet 
steel and steel angle bars l34xlMx3^-inches for bracing. The form is 
illustrated on page 92. 
The Monolithic Silo & Construction Co., of Chicago, are the manu- 
facturers of the Monsco molds for building reinforced concrete silos. 
The Monsco Company realize the necessity of having a concrete 
chute and roof, the chute having been one of the noted features 
of this company. The form for the successful building of a con- 
crete roof is a necessary development and today practically all 
up-to-date silos have concrete roofs. 
The Monsco molds build 6 feet per day and are illustrated on this 
page. They are made in two circles each three feet high and each circle is 
divided into four to six segments according to diameter, the chute mould 
making an additional segment. No. 18 gauge galvanized sheet steel, spe- 
cially rolled for this purpose, is used in making them. The weight will vary 
from 1,900 pounds for a 12-foot mold and upward, according. to diameter. 
Monolithic 
Silo and 
Construction 
Co. 
Monsco Forms. Sections removed to show details of centering and supporting device. 
