Improvements in the Manufacture of Supporting Columns.
Year: 1888

page_text: Date of Application, 1.1th Aug., 1888
Complete Specification Left, 9th May, 1889-Accepted, 15th June, 1889
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Supporting Columns.
I, WILLIAM LINDSAY, of Eversley, 73 Mount Park, Ealing, in the County of
Middlesex, Engineer, do hereby declare the nature of this invention to be as
follows:-
Heretofore columns for supporting the floors of buildings and for such like purposes
have been made of cast iron usually with four ribs or webs radiating from a common
centre and at equal angles to one another.
I make such columns of wrought iron or steel by rolling down the metal between
successive pairs of rolls-and by giving to the metal bar or column a quarter turn after
each passage through the rolls before passing it through the next.
The base and cap pieces of each column 1 also make of wrought iron or steel-each
base or cap piece being made up of angle pieces secured to the radial ribs or webs of
the column by rivetting.
The columns can be made of sufficient length to allow of their being carried through
in one continuous length from the basement to the roof of a building and for
supporting the floors angle pieces may be secured by rivetting to the ribs or webs of
the column wherever required.
With columns formed as above described of rolled wrought iron or steel there is no
possible chance of a flaw in the metal as there is with cast columns so that they can be
used with greater safety.
1600
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Supporting Columns.
I, WILLIAM LINDSAY, of Eversley, 73 Mount Park, Ealing, in the County of
Middlesex, Engineer, do hereby declare the nature of this invention and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement :-
:-
Heretofore columns for supporting the floors of buildings and for such like purposes
have been made of cast iron usually with four ribs or webs radiating from a common
centre and at equal angles to one another.
I make such columns of wrought iron or steel by rolling down the metal between
successive pairs of rolls-and by giving to the metal bar or column a quarter turn after
each passage through the rolls before passing it through the next.
The base and cap pieces of each column I also make of wrought iron or steel-each
base or cap piece being made up of angle pieces secured to the radial ribs or webs of
the column by rivetting.
The columns can be made of sufficient length to allow of their being carried through
in one continuous length from the basement to the roof of a building and for
supporting the floors angle pieces may be secured by rivetting to the ribs or webs of
the column wherever. required.
With columns formed as above described of rolled wrought iron or steel there is
no possible chance of a flaw in the metal as there is with cast columns so that they
can be used with greater safety.
In order that my said invention may be more fully understood and readily carried
into effect I will proceed to describe the drawings hereunto annexed,

page_text: DESCRIPTION OF THE DRAWINGS.
Figure 1 is a side elevation of the rolls I employ.
A is the first groove through which a square ingot or bar is passed a single time.
B is the second groove the spaces bb being of approximately the same size as the
spaces a of the first, whilst the spaces 6' 6' are considerably smaller so that most of
the rolling takes place here. The bar is passed twice through this groove being given
a quarter turn between the two passages, so that each of its ribs passes once through
one or other of the spaces b¹-C is the third groove the spaces cc being approximately
equal to the spaces whilst the spaces c¹ c¹ are smaller. The bar is passed twice
through this groove a quarter turn being given between the two passages.
fourth or finishing groove the four spaces d being each approximately equal to the
spaces c¹.
Figure 2 shows a column constructed of iron rolled as above described, and
D is the
Figure 3 is a section of the same on the line XX (Figure 2). The base and cap
pieces are formed of the angle pieces E E rivetted to the radial ribs or webs of the
column and the girders of the floors are also supported by similar angle pieces F.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is
1. In manufacturing columns of wrought iron or steel with four radial ribs or
webs passing the metal twice between pairs of rolls and giving it a quarter turn after
the first passage, substantially as described.
2. Supporting columns substantially as described and shown in the drawings.
Dated this '6th day of Mov 1980
WILLIAM LINDSAY.