Improvements in Machines for Cutting or Shearing Various Sections of Iron or Steel Bars, Beams, or Girders.
Year: 1891

page_text: Date of Application, 21st July, 1891
Complete Specification Left, 21st May, 1892-Accepted, 25th June, 1892-
PROVISIONAL SPECIFICATION.
Improvements in Machines for Cutting or Shearing Various Sections
of Iron or Steel Bars, Beams, or Girders.
We, MOSES HENRY CAMERON, of Ridal Mount, Stretford, Engineer, and
WILLIAM SNAPE, of 43, West Clowes Street, Salford, Engineer, both in the
County of Lancaster, do hereby declare the nature of this invention to be as
follows:-
"
This invention relates to improvements in machines for cutting or shearing
various sections of iron or steel bars, beams, or girders, such as are used by ship-
builders, roof and girder makers, and the like, and has principally for its object to
provide means, whereby iron or steel bars, beams, or girders of "
section can
be cut or sheared at a right or other angle without altering or distorting the section
of the piece that has been cut off the bars, beams, or girders of other or usual
section.
To this end our invention consists in the employment of a moving knife or shear
blade, having two cutting or shearing edges, operating in conjunction with three
pairs of relatively stationary knives or shear blades arranged "." Three of
the said knives or shear blades being placed at the front of the first named knife
or shear blade and the other three at the back of the same, by this means they
form a die for the latter and on moving the same a piece is cut or sheared out of
the "" or other section equal to the full width of the section and the thickness
of the first named knife or shear blade.
The first named knife or blade is carried by a slide or rocking lever, as the case
may be and moved by an eccentric formed or fixed on the main shaft, driven by
spur wheel gearing and actuated by either a pulley and belt or steam engine. The
said knife or shear blade may also be moved by hydraulic power.
The three pairs of knives or shear blades arranged "" like, are supported by
the body or frame of the machine, the lower pair being fixed stationary and directly
onto the body or frame of the machine, while the upper ones, which are opposite
each other, are fixed to slide blocks made adjustable thereon.
The said slide blocks are made adjustable by means of screws or other suitable
mechanism, to enable the machine to cut various sizes and sections of iron or
steel. By these means the section of the various sizes is retained when cut or
sheared.
The described arrangement of knives or shear blades may be duplicated when
working in a horizontal position and worked from either one or two eccentrics.
It will be well understood that the first named moving knife or shear blade can
be stationary, while the three pairs of knives or shear blades are caused to be
moved.
Dated this 20th day of July 1891.
F. BOSSHARDT & Co.,
Agents to Applicants.
COMPLETE SPECIFICATION.
Improvements in Machines for Cutting or Shearing Various Sections
of Iron or Steel Bars, Beams, or Girders.
We, MOSES HENRY CAMERON, of Ridal Mount, Stretford, Engineer, and
WILLIAM SNAPE, of 43, West Clowes Street, Salford, Engineer, both in the
County of Lancaster, do hereby declare the nature of this invention and in what
[Price 8d.1

page_text: manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :--
This invention relates to improvements in machines for cutting or shearing
various sections of iron or steel bars, beams, or girders, such as are used by ship-
builders, roof and girder makers, and the like, and has principally for its object
to provide means, whereby iron or steel bars, beams, or girders of "
or other
section can be cut or sheared at a right or other angle without altering or dis-
torting the section of the piece cut off.
لنا
"
And in order that our invention may be more fully understood we have caused
to be appended hereunto seven sheets of drawings marked with letters of reference
indicating like parts in the various figures.
Fig. 1, Sheet I, is a front view and Fig. 2 a sectional plan of Fig. 1, of a machine
actuated by hydraulic power and knife or shear blades arranged for cutting
I sectioned iron or steel bars, beams, or girders.
Figs. 3, 4 & 5, are front views of the knife or shear blades only respectively
arranged for channel, angle and "Z" sectioned iron or steel.
Fig. 6, Sheet II, is an end view of Fig. 1.
Fig. 7, Sheet III, is a side view, Fig. 8 a sectional plan, and Fig. 9 a sectional
end view of Fig. 7, showing the knife or shear arranged for cutting channel
sectioned iron or steel.
Fig. 10, Sheet IV, is a front view, Fig. 11 a sectional plan and Fig. 12 a
sectional end view of the knife or shear blades arranged for cutting channel
sectioned iron or steel at other than a right angle.
Fig. 13, Sheet V, is a front view of a machine actuated by means of gearing and
showing the knife or shear blades arranged for "I" sectioned iron or steel.
Fig. 14, Sheet VI, is a sectional plan and
Fig. 15, Sheet VII, a sectional end view of Fig. 14.
In carrying out our invention and referring to the figures generally, the
improvements consist in the employment of a moving knife or shear blade a, having
two cutting or shearing edges, operating in conjunction with three pairs of relatively
stationary knives or shear blades h, b, c, c, d, d', arranged "" like. Three of
the said knives or shear blades, namely, b, c, d, are positioned in front of the knife
or shear blade a and the other three b, c, d, at the back thereof, so as to form a
die for the knife or shear blade a, which latter on moving downwards cuts or shears
a piece out of the "_" or other sectioned bar, beam, or girder e, equal to the full
width of the section and the thickness of the knife or shear blade a.
The knife or shear blade a may be carried by a slide f connected to and actuated
by a hydraulic ram g, see Sheets I & II, or to a rocking lever or connecting rod h,
see Sheets V & VII, moved by an eccentric or crank i formed or fixed on the main
shaft k, driven by spur wheel gearing 1, 1ª, 1², 1³, and actuated by either a pulley m
and belt or steam engine direct.
"
The three pairs of knives or shear blades b, b, c, c, d, d¹, arranged
"
like,
are supported by the body or frame n of the machine, the lower pair b, 6ª, being
fixed stationary and directly onto the body or frame n of the machine, while the
upper ones c, c, d, d', which are opposite each other, are fixed to slide blocks o
made adjustable on the body or frame n by means of screws p, or other suitable
mechanism, so as to adapt the machine to cut various sizes, i.e. widths and sections
of iron or steel bars, beams, or girders e.
The knife or shear blades b, b, c, c, d, d', may be formed separately from each
other, as shown in Sheets I, II, IV, V, VI, & VII, the knife or shear blades b, b¹
being bolted to the respective part of the body or frame n and the knife or shear
blades C, c, d, d¹, to lugs q formed at the front of the sliding blocks o, or the knife
or shear blades c, c, d, d, may be formed in one part, as shown in Sheet III, in
which case the lugs 7 are dispensed with.
For cutting iron or steel bars, beams, or girders e at a
right angle, the vertical
T1 ТГТ
TY

page_text: VI, VII, are positioned at a right angle behind each other, whilst for cutting at
other than a right angle, the knife or shear blades c, c', d, d', are displaced according
to the angle at which it is desired to cut the iron or steel bar, beam, or girder e, as
shown in Sheet IV.
In order to facilitate the displacement of the knife or shear blades c, c', d, d',
according to requirements, they are fixed to separate sliding blocks o, o¹, each having
its own screw p for adjustment.
The arrangement of knife or shear blades described forms practically a punch
and die and enables to cut various sections of iron or steel bars, beams, or girders e,
so as not to distort the section or cut ends and thus retain the section perfect.
It will be evident that the described knife or shear blades may also be arranged
inclined or vertical, or that they may be duplicated and worked from either one or
two eccentrics or cranks i and that the knife or shear blade a can be stationary,
while the three pair of knife or shear blades b, b', c, c, d, d', are caused to be
moved.
Having now particularly described and ascertained the nature of our inven-
tion and in what manner the same is to be performed, we declare that what we
claim, is-
"In machines for cutting or shearing iron or steel bars, beams, girders, and the
like."
1st. The general construction and combination of parts constituting our improve-
ments operating substantially as and for the purpose set forth.
2nd. The combination of three relatively fixed pairs of knife or shear
blades b, b, c, c', d, d', with a movable knife or shear blade a, adapted to enter
between the said bottom and side knife or shear blades, which together form a die
and punch and are adapted to cut or shear the iron or steel bar, beam, girder e, or
the like, by cutting out a piece equal in thickness to the knife or shear blade a the
full width of the iron or steel bar, beam, girder e, or the like itself, substantially as
and for the purpose specified.
3rd. The knife or shear blades 7, b¹, c, c¹, d, d', rendered movable and the
knife or shear blade a stationary, substantially as and for the purpose specified.
Dated this 20th day of May 1892.
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicants.