压挤熟铁块
叠瓦作用

Shingling \Shin"gling\, n.
1. The act of covering with shingles; shingles, collectively;
a covering made of shingles.

2. (Metal) The process of expelling scori[ae] and other
impurities by hammering and squeezing, in the production
of wrought iron.

{Shingling hammer}, a ponderous hammer moved by machinery,
used in shingling puddled iron.

{Shingling mill}, a mill or forge where puddled iron is
shingled.


Shingle \Shin"gle\, v. t. [imp. & p. p. {Shingled}; p. pr. & vb.
n. {Shingling}.]
1. To cover with shingles; as, to shingle a roof.

They shingle their houses with it. --Evelyn.

2. To cut, as hair, so that the ends are evenly exposed all
over the head, as shingles on a roof.