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

page_text: Date of Application, 11th Mar., 1891
Complete Specification Left, 11th Dec., 1891-Accepted, 16th Jan., 1892
PROVISIONAL SPECIFICATION.
Improvements in Machines for Cropping and Shearing Various
Sections of Iron or Steel Bars, Beams, or Girders.
I, MOSES HENRY CAMERON, of 1, Ash Lea, Cornbrook Park Road, Manchester,
in the County of Lancaster, Engineer, do hereby declare the nature of this invention
to be as follows:-
This invention relates to improvements in machines for cropping and shearing
iron or steel bars, beams or girders of various sections, 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 "Z" section can
be cropped and sheared at a right or other angle, as well as bars, beams or girders
of other or usual section.
To this end my invention consists in the employment of two moving knives or
shear blades operating in conjunction with two relatively stationary knives or shear
blades arranged respectively above each other. The first named two knives or
shear blades are carried by a rocking, lever or a diagonal slide, 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 lower of the last named
knives or shear blades is fixed directly onto the aforesaid rocking lever or diagonal
slide, while the other is fixed on a slide block made adjustable thereon. The second
named two knives or shear blades are supported by the body or frame of the
machine, the lower one being fixed stationary and directly onto the body or frame
of the machine, while the upper one is fixed to a slide block, made adjustable
thereon.
The said slide blocks are made adjustable by means of screws and enable the
machine to cut various sizes and sections of iron or steel.
The portion of the body or frame of the machine and that of the rocking lever
or diagonal slide, near to the knives or shear blades, is so shaped or cut out as to
permit of placing the iron or steel to be cut at any desired angle to the knives or
shear blades.
The described arrangement of knives or shear blades may be duplicated in
the machine as will be well understood and actuated either from one or two
eccentrics.
Dated this 10th day of March 1891.
F. BOSSHARDT & Co.,
Agents to Applicant.
COMPLETE SPECIFICATION.
Improvements in Machines for Cropping and Shearing Various
Sections of Iron or Steel Bars, Beams, or Girders.
I, MOSES HENRY CAMERON, of 1, Ash Lea, Cornbrook Park Road, Manchester,
in the County of Lancaster, 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:-
This invention relates to improvements in machines for cropping and shearing
iron or steel bars, beams or girders of various sections, 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 "Z" section can be
DQ27

page_text: cropped and sheared at a right or other angle as well as bars, beams or girders of
other or usual section.
And in order that my invention may be more fully understood I have caused to
be appended hereunto four sheets of drawings marked with letters of reference
indicating like parts in the various figures.
Fig. 1 Sheet I, is a 'front view, Fig. 2, Sheet II, is a sectional plan on
line AB of Fig. 1, Sheet I, of a double machine for cropping and shearing
various sections of iron or steel bars, beams or girders, constructed in accordance
with my invention.
Fig. 3, Sheet III, is a front view and Fig. 4, Sheet IV, a sectional plan on
line CD of Fig. 3, Sheet III, of a single machine for the purpose aforesaid.
In carrying out my invention and referring to the figures generally my improve-
ments consist in the employment of two moving knives or shear blades a & a',
operating in conjunction with two relatively stationary knives or shear blades b, b',
arranged respectively above each other. The two knives or shear blades a & a¹ are
carried by a rocking lever c, as shown in Figs. 1 & 2, Sheets I & II, or by a
diagonal slide d, as shown in Figs. 3 & 4, Sheets III & IV, moved respectively
by an eccentric e formed or fixed on the main shaft f, driven by spur wheel
gearing f³ & f, as may be found most convenient, and actuated by either
a pulley and belt or steam engine, as will be well understood. The knife or shear
blade a is fixed directly onto the aforesaid rocking lever c or diagonal slide d,
whilst the knife or shear blade a¹ is fixed on a slide block g, made adjustable on
the lever c or diagonal slide d. The knife or shear blades b, are supported by
the body or frame of the machine, the knife or shear blade b being fixed
stationary and directly onto the body or frame h, whilst the knife or shear blade 6
is fixed to a slide block i made adjustable on the body or frame of the machine. -
The slide blocks y & i carrying the knife or shear blades a & respectively, are
fitted into cavities g¹ & formed respectively in the face of the rocking lever c or
diagonal slide d and in the back of the body or frame and made adjustable
therein by means of screws o² & suitably actuated, which enables the operator to
lengthen or shorten the side cutting edges a² & 2 respectively of the upper and
lower knife or shear blades a¹ & b and thus adapt the machine for cropping or
shearing various sizes and sections of iron or steel bars or the like.
The object of fixing the knife or shear blades a¹ & b on blocks y & i
respectively, is to give the same a firmer support than what would be the case
otherwise and thus prevent them from becoming strained on getting, blunt.
The portion of the body or frame of the machine and that of the rocking
lever c or diagonal slide d, near to the knife or shear Blades b, & a, respectively
and that of the blocks i & g is so shaped or cut out, as to permit of placing the
iron or steel bars or the like to be cut into the machine at any desired angle to the
knife or shear blades a, a¹ & b, b'.
Although the knife or shear blades a & a have been shown, in Figs. 1 & 2,
Sheet I & II, representing a double machine, as actuated by means of a rocking
lever and in Fig. 3 & 4, Sheet III & IV, representing a single machine, as
actuated by means of a diagonal slide d it will be understood that with little
modification the respective arrangements may be vice versa.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed; I declare that what I
claim, is-
"In machines for cropping and shearing various sections of iron or steel bars,
beams or girders."
1st. The general construction and combination of parts constituting my improve-
ments operating substantially as and for the purpose set forth.
2nd. A fixed and an, adjustable knife or slicar blade a
a carried by a rocking
11

page_text: adjustable knife or shear blade & & & supported by the body or frame h of the
machine, whereby the side cutting edges a' & 6 of both the upper and lower
knife or shear blades a¹ & b can be lengthened and shortened, without inter-
changing any of the knife or shear blades, substantially as and for the purpose
set forth.
3rd. Fixing the knife or shear blades a' & b¹ on blocks & i respectively,
rendered adjustable in cavities g' & ' formed in the body or frame h and rocking
lever c or diagonal slide d of the machine, substantially as and for the purpose
set forth.
D 10th day of December 1801
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicant.