Improvements in or connected with Knives or Sickles for Mowing. and Reaping Machines.
Year: 1896

page_text: Date of Application, 1st July, 1898
Complete Specification Left, 10th Sept., 1896-Accepted, 17th Oct., 1896
PROVISIONAL SPECIFICATION.
Improvements in or connected with Knives or Sickles for Mowing.
and Reaping Machines.
1, WILLIAM BRENTON, of the East Cornwall Iron Works, Polbathic,,.
St. Germans, in the County of Cornwall, Engineer, do hereby declare the nature'
of this invention to be as follows:-
My invention relates to knives or sickles for mowing and reaping machines and
comprises a novel construction of the sections whereby they are stronger and can
be more securely fixed than heretofore and whereby the knife-bar may be made
lighter.
According to my invention each section is adapted to grip against the bar and
for this purpose it is formed with a flange at an angle to the main part of the
section, which flange engages with the back of the finger-bar or, with a groove
therein. In some cases the flange may be interrupted and have an intermediate
flat portion which will rest on the finger-bar. In fixing the sections to the bar
the flanges are brought tight up against the back of the bar or inserted in the:
groove therein and then a single rivet is inserted, or I can use two rivets if
preferred.
Dated the 1st day of July 1896.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
Improvements in or connected with Knives or Sickles for Mowing
and Reaping Machines.
I WILLIAM BRENTON, of the East Cornwall Iron Works, Polbathic,
St. Germans, in the County of Cornwall, 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 :-
My invention relates to knives or sickles for mowing and reaping machines and
comprises a novel construction of the sections whereby they are stronger and can
be more securely fixed than heretofore and whereby the knife-bar may be made
lighter, as the sections can each be fixed into one rivet, thus requiring only half
the number of holes which are necessary when two rivets are used.
According to my invention each section is adapted to grip against the bar and
for this purpose it is formed with a flange at an angle to the main part of the
section, which flange engages with the back of the knife-bar or with a groove
therein. In some cases the flange may be interrupted and have an intermediate
flat portion which will rest on the finger-bar.
. To enable my' invention to be fully understood I will describe the same by
reference to the accompanying drawing, in which :-
Figure 1 is a plan of a knife section constructed according to my invention
together with the adjacent portion of the knife-bar; and,

page_text: Figure 2 is a side elevation of the same:
Figure 3 is a view similar to Figure 2 illustrating a modification of my
invention; and,
Figure 4 is a view similar to Figure 1 illustrating another modification; and,
Figure 5 is a side view of the modification shewn in Figure 4:
Figure 6 is a sectional elevation shewing the knife illustrated in Figures 4 and 5
in conjunction with the finger-bar and a finger:
Figures 7 and 8 are side views illustrating further modifications.
Similar reference letters indicate corresponding parts throughout the drawing.
a is the knife-bar, and b is my improved knife section having the flange c
designed to bear against or engage with the said knife-bar.
As shewn in Figures 1 and 2 the flange b extends along the entire width of
the section, a single rivet d being inserted through the section to hold it in
position.
In the arrangement shewn in Figure 3, the flange b is not so deep as that shewn
in Figure 2 and is inserted into a groove e in the finger-bar.
In the modification shewn in Figures 4 and 5, the arrangement is the same as
that shewn in Figures 1 and 2, except that instead of turning down the back of
the section for its whole width the central portion of the back is left projecting to
form a lip f which, when the knife is in work, will bear upon the back of the
finger-bar as shewn in Figure 6 and assist in maintaining the section in contact
with the fingers.
In the modification of my invention shewn in Figure 7, the section is represented
as having a recess g stamped or otherwise produced on its underside so as to form
a shoulder which will grip against the front of the knife-bar.
When the sections are recessed, the flange at the back may be dispensed with
as shewn in Figure 8.
Instead of recessing the sections the bar may be recessed to receive the
sections.
In all the modifications herein before described only a single rivet d is necessary
for fixing each section but it will be obvious that two rivets may be used as
heretofore if desired. It will also be obvious that sections constructed according
to my invention can be applied as well to the underside of a knife-bar as to the
upper.
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 a knife or sickle for mowing or reaping machines, sections having a flange
or flanges designed to engage with the bar to which the said sections are attached,
substantially as described.
2. In a knife or sickle for mowing or reaping machines, sections having flanges
designed to enter a groove in the bar to which the sections are attached; sub-
stantially as described.
3. In a knife or sickle for mowing or reaping machines, sections recessed to
form shoulders fitting against the front of the knife-bar with or without flanges
upon the rear edges, substantially as described.
Dated the 10th day of Santember 1906
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.