Improvements in and connected with Devices for Holding Mower or Reaper Knives or Sickles for Sharpening the same.
Year: 1892

page_text: Date of Application, 21st July, 1892
Complete Specification Left, 22nd Dec., 1892-Accepted, 11th Feb., 1893
PROVISIONAL SPECIFICATION.
Improvements in and connected with Devices for Holding Mower or
Reaper Knives or Sickles for Sharpening the same.
I, FRANK KNIGHT WOODROFFE, of the firm of Woodroffe & Co., of Albion
Iron Works, Rugeley, in the County of Staffs., Engineer, do hereby declare the
nature of this invention to be as follows:-
This invention relates to improvements in and connected with portable devices
for holding mower or reaper knives or sickles for sharpening the same and has for
its object to construct a holder which can be applied, in a simple manner to a gate,
a railing or to some suitable part of the implement to which the knife or sickle to
be sharpened belongs.
My improved holder consists of a bar suitably recessed to receive the back of
the knife and provided with eccentric or other jaws or grippers for fixing the knife
or sickle on the bar.
My bar is adapted to be fixed by means of a stud or bolt, provided or not with a
thumb nut, or by means of lugs and screws to a gate bar, a rail or a part of the
implement to which the knife belongs such as the pole or travelling wheel.
In practice I find it advantageous to employ an arm or bracket having a clip
at one end and at the other end adapted to receive the stud or bolt of my
holder.
To enable me to adjust the angle of the holder relatively to its support I
provide teeth on the underside of the bar adapted to take into teeth on the
support.
In some cases I combine with my holder, jaws to serve as a spanner, which jaws
may be adjustable.
I may also combine with my holder a hook for facilitating the withdrawal of the
knives or sickles from the fingers.
A guide and roller can be adapted to my holder for automatically regulating the
grinding and for giving the proper angle to knives when being sharpened.
Dated the 21st day of July 1892.
G. F. REDFERN & Co., .
4, South Street, Finsbury, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in and connected with Devices for Holding Mower or
Reaper Knives or Sickles for Sharpening the same.
I, FRANK KNIGHT WOODROFFE, of the firm of Woodroffe & Co., of Albion
Iron Works, Rugeley, in the County of Staffs., 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 and connected with portable devices
for holding mower or reaper knives or sickles for sharpening the same and has for
its object to construct a holder which can be applied in a simple manner to a gate,
a railing or to some suitable part of the implement to which the knife or sickle to
be sharpened belongs.
In the accompanying drawings,
Figure 1 is a front elevation of my improved holder.

page_text: Figures and are views illustrating the construction of details.
My improved holder comprises an angle bar a recessed along one side or provided
with lugs b, as shewn to prevent the knife from slipping off the bar. At the ends
of the bar I pivot eccentric or other jaws or grippers c, c which when turned from
the position shewn in full lines in Figure 1 to the position shewn in dotted lines will
firmly grip the knife or sickle on the bar, the said knife being also shewn in dotted
lines.
My bar is adapted to be fixed by means of a stud or bolt, provided or not with
a thumb nut, or by means of lugs and screws to a gate bar, a rail or a part of the
implement to which the knife belongs such as the pole or travelling wheel.
In practice however I find it advantageous to employ an arm or bracket d having
a clipe at one end and at the other end adapted to receive the stud or bolt of my
holder and to carry the latter.
To enable me to adjust the angle of the holder relatively to its support I
provide grooves g, g on the underside of the bar a as shewn in Figure 4 one or the
other of which is adapted to engage with a tooth on the support, the said tooth
being shewn most clearly in Figure 5.
The holder is shewn as applied to the bracket d when adapted to be fixed upon a
horizontal support.
In case however that such a support is not available the
bracket may be fixed to a vertical support in which case the holder is fixed in a
horizontal position by passing the bolt through a hole i, Figures 3 and 5, a tooth j
similar to the tooth being arranged adjacent to the said hole, and for a similar
purpose.
In some cases I combine with my holder, jaws to serve as a spanner, which jaws
may be adjustable.
I
may also combine with my holder a hook for facilitating the withdrawal of the
knives or sickles from the fingers.
A guide and roller can be adapted to my holder for automatically regulating the
grinding and for giving the proper angle to knives when being sharpened.
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. A device for holding mower or reaper knives for sharpening the same,
composed of an angle bar having a recess to receive the back of the knife and two
jaws for clamping the knife upon the said bar, substantially as described.
2. In a device for holding mower or reaper knives or sickles for sharpening the
same, an angle bar having clamping jaws at each end and adjustably fixed to a
supporting stand or bracket, substantially as described.
3. The manufacture and use of the improved knife or sickle holding device
herein before described and illustrated in the accompanying drawings.
Dated this 22nd day of December 1892.
G. F. REDFERN & Co.,
4, Sonth Street, Finsbury, London, Agents for the Applicant.