Improvements in Machines for Cutting Channel-bars and the like.
Year: 1890

page_text: Date of Application, 27th Nov., 1890-Accepted, 21st Feb., 1891
COMPLETE SPECIFICATION.
[Communicated from abroad by JOHN KOEHLER, of Canton, in the County of
Stark, and State of Ohio, United States of America.]
Improvements in Machines for Cutting Channel-bars and the like.
I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co., Patent Agents,
45, Southampton Buildings, in the County of Middlesex, 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 :-
The present invention relates to machines designed for cutting I-beams or
channel-bars by means of dies; and it consists in the different parts and combination
of parts hereinafter described.
In the accompanying drawings,
Figure 1 is a view of the blade-holding head, showing the same properly located
and the blades in position to cut the web of an I-beam or channel-bar, and also
showing an I-beam properly located.
Figure 2 is an edge view of one of the cutting-blades.
Figure 3 is a detached view of the blade-holding link or key.
Figure 4 is a view illustrating the cutting-blades passed through the web of an
I-beam, said parts being shown in dotted lines.
Figure 5 is a view showing the parting-wedge down in position to part the
cutting-blades, also showing the cutting-blades parted to cut the flanges of an
I-beam or channel-bar.
Figure 6 is a detached view of the wedge-block.
Figure 7 is a top view of the bed-plate, showing the fixed or under dies properly
located thereon and the same securely clamped.
Figure 8 is a view showing the fixed or under dies together with their different
attachments detached.
Figure 9 is a view showing an I-beam properly clamped and placed upon the
bed-plate, and the cutting-blades locked to the sliding head.
Figure 10 is a transverse section of one of the cutting-blades, showing the top or
upper part of the blades full.
Figure 11 is a section, through line x, x, Figure 1.
Figure 12, is an edge view of one of the clamping-links, showing the excentric
properly attached thereto.
Similar letters of reference indicate corresponding parts in all the figures of the
drawings.
A represents the blade-holding head, which is designed and calculated to be
moved up and down by a plunger operated by means of an excentric or other
mechanism commonly used to operate a reciprocating plunger in die-presses.
Within the head Á are located the top or upper portions of the cutting-blades B.
These cutting-blades are each provided with the notches or grooves a a, which are
used for the purpose of receiving the ends of the key b, and when it is desired to
have the cutting-blades B follow the movement of the head A. the key is placed
in the position illustrated in Figure 9 thereby locking the blades B to the
head A.
For the purpose of providing a means to extend the key into the notches or
grooves a the openings c are provided.
"
To the bar C are attached the bottom or lower web-dies D, which dies are so
located and adjusted that they will come directly under or beneath the web of an

page_text: I-beam or channel-bar. These dies D are set far enough apart to allow the cutting-
blade B to pass down between said dies D.
At one end of the lower dies D is located the head E, which head is fixed to the
bar C by means of seating a portion of said head E into the groove d, or in any
other well-known and convenient manner.
To the head E are securely attached the flange-dies d'.
To the opposite ends of the dies D is located the movable head F, which head is
provided with the flange-dies d².
For the purpose of securely clamping an I-beam or channel-bar between the
heads E and F and the links e are provided, which links receive the die-heads E
and F, substantially as illustrated in Figures 7 and 12, and for the purpose of
binding the die-heads E and F against the outer faces of the flanges designed to be
cut the excentric G is provided, which excentric is held to the links e by means of
the bar or spindle and the collars f¹.
For the purpose of operating the excentric G the handle 2 is provided.
It will be understood that other means may be employed for clamping the die-
heads E and F ; but I prefer to use the excentric, as shown.
It will also be understood that the die-head E should be set far enough away
from the ends of the dies D to allow the flanges of the i-beam or channel-bar to be
received between the die-head E and the ends of the dies D.
In use, the beam designed to be cut is placed in the position illustrated in
Figure 9, at which time the sliding head A is forced downward until the blades B
have passed through the web of the I-beam or channel-bar and extended to the
bottom of the side flanges of the I-beam or channel-bar, at which time the key b
is removed from the head A thereby disengaging the cutting-blades B from the
sliding-head A, at which time the sliding head A is again elevated, thereby
forming the opening H directly above the top or upper end of the parting-wedge Hi
as shown in Fig. 5. The block or bar I (Fig. 6) is placed through the opening H
on the top of the parting-wedge H and the sliding head A again forced down-
ward, carrying with it the parting-wedge H', and thereby expanding the cutting-
blades B, as illustrated by the dotted lines Figure 5 which cause the cutting-blades B
to pass through the flanges of the I-beam or channel-bar, after which the
cutting-blades B and the parting-wedge H are again placed in the position
illustrated in Figure 1 and the key placed in the position illustrated in Figure 9.
For the purpose of providing stops for the cutting-blades B the shoulders
provided said shoulders coming in contact with the blocks H³ or their equivalents,
and upon which blocks the shoulders g slide, when the blades B are expanded, by
means of the parting wedge H¹, or its equivalent.
9, are
It will be understood that the inner edges of the cutting-blades B should be
provided with V-shaped grooves h, (Fig. 10) which are for the purpose of receiving
a V-shaped ridge upon the edges of the parting-wedge H', thereby preventing any
accidental lateral displacement of the parting-wedge H¹.
For the purpose of bringing the blades B together after they have been
expanded by means of the parting-wedge H', the helical springs J are provided,
said springs abutting against the outer edges of the blades B, as illustrated in
Figures 1, 4, and 5, for the purpose of causing the sliding bars g', to move with
the blades B, the pins g², are provided, and around which pins are located the
springs J.
The apertures, which receive the ends of the pins located in the blades B,
should be deep enough to allow said blades to expand.
The sliding bars g', should be located in grooves, which grooves are formed in
the head A, in any convenient and well known manner.
In the drawings, K represents the bed-plate, which is attached to the press-
frame K¹ in the ordinary manner.
It will be understood that other means may be used for parting the cutting-
blades B without departing from the nature of my invention.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, as communicated to me by
my foreign correspondent, I declare that what I claim is :-
First. The sliding heads A, having located therein the cutting-blades B, the
parting-wedge H', the fixed dies D, and the flange-dies d' and d², substantially as
and for the purpose specified.
Second. The combination of the heads A, the cutting-blades B, provided with
the notch or groove a, the key b, and the parting-wedge H', substantially as and
for the purpose specified.
Third. The combination of the head A, having located therein and carrying the
cutting-blades B, the dies D, d, and d, and means for parting the cutting-blades B,
substantially as and for the purpose set forth.
Fourth. The head A having located therein the cutting-blades B, the parting-
wedge H' located between the cutting-blades B, and the block or bar I, substantially
as and for the purpose set forth.
Fifth. The combination of the bar C, having attached thereto the dies D, the
die-head E fixed to the bar C, the movable head F, the links e and the excentric G,
substantially as and for the purpose set forth.
Sixth. The combination of the head A, the cutting-blades B, the stop shoulders g,
the dies D, d', and d, and the means for clamping an I-beam or channel-bar,
substantially as and for the purpose specified.
Seventh. A device for cutting I-beams, channel-bars, or other difficult shapes
in which the central portion is first removed by the blades B operating against
the die D, and the outer portions then removed by blades B, operated against the
lateral blocks E and F at or nearly at right angles to the direction of motion in
making first cut by means of the wedge H', or other equivalent device, substantially
as specified.
Eighth. The combination of the head A, the cutting-blades B, the springs J,
the pins g², and the sliding bars g', substantially as and for the purpose specified.
Dated this 26th day of November 1890.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.