Improvements in Knotting Mechanism for Sheaf-binders.
Year: 1894

page_text: Date of Application, 20th Oct., 1894
Complete Specification Left. 20th July, 1895-Accepted, 12th Oct., 1595
PROVISIONAL
DIE
Improvements in Knotting Mechanism for Sheaf-binders.
We JAMES HORNSBY, JOHN INNOCENT and ISAAC TROLLEY all of Spittlegate
Iron Works Grantham in the County of Lincoln Engineers, do hereby declare the
nature of this invention to be as follows:-
This invention relates to certain improvements upon a former Patent obtained
by us Number 23,204 December 2nd 1893 and consists of certain improvements in
holding the strings (which bind the sheaf) on the knotter, and also improvements in
stripping the strings off the knotter.
To hold the string more securely on the knotter, in front of the knotter on the
knotter plate, we use a tapered cord guide projecting over the opening for the
ueedle in the knotter plate-this guide is tapered so as to carry the string well on
to the knotter.
When tying the knot the knotter carries the string round the end of this tapered
guide the string is then held on to the knotter by the knotter plate which at this
part is curved so that as the knotter turns the plate holds the string close to the
knotter until the jaws of the knotter are closed on the string. The strings are then
cut and the knot drawn off the knotter by the ejectors discharging the sheaf.
The knotter is free to turn so that the strings may be drawn directly off the
knotter.
To prevent the strings catching on the curved breast of the knotter plate the
string knife lever is made to push the strings past the curved breast of the knotter
plate directly into the opening of the discharging slot, there to be drawn off the
knotter as the sheaf is discharged.
Dated this Eighteenth day of October 1894.
JAMES HORNSBI.
JOHN INNOCENT.
ISAAC TROLLEY.
Improvements in Knotting Mechanism for Sheaf-binders.
JAMES HORNSBY, JOHN INNOCENT and ISAAC TROLLEY all of Spittlegate
Iron Works Grantham in the County of Lincoln Engineers, 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 certain improvements upon a former Patent obtained
by us, No. 23,204 December 2nd 1893 and consists of certain improvements "in
holding the string that binds the sheaf with greater security on the knotter, also
improvements in stripping the strings off the knotter when the knot is completed
and the sheaf is discharged. Ou the knotter plate in front of the knotter we use a
cord guide projecting across the opening in the knotter plate through which the
needle and twine passes-this guide is tapered so as to carry the twine well on to
the knotter.
When tying the knot the knotter carries the string round the end of this guide,
the string is then held on the knotter by the knotter plate which at this part is
curved so that as the knotter turns the plate holds the twine close to the knotter

page_text: until the jaws of the knotter are closed on the string, the strings are then cut and
the knot drawn off the knetter by the ejectors discharging the sheaf.
The knotter is free to turn so that the knot may be drawn in a direct line off
the knotfèr.
"
Until the knot is completed the strings lie against the curved breast of the
knotter plate the string knife lever is made to push the strings past the curved
breast directly into the opening of the discharging slot there to be drawn off the
knotter as the sheaf is discharged:
In the drawings we only show so much as will serve to explain our invention.
Fig. 1, shows a side elevation.
Fig. 2 shows a plan with the knotter at rest.
Fig. 3 shows the same as Fig. 2 but with a knot being drawn off the knotter as
the sheaf is being discharged.
A is the knotter and A is the knotter plate against the underside of which the
sheaf is packed this plate has in it the slot B along which the beedle advances
and retires, the part B₁ of this slot forins a discharging slot through which when
the sheaf is bound and the knot is tied the said knot descends as the sheaf is
discharged, this is shown best at Fig. 3:
C is the string knife lever to which the knife C¹ that severs the string when a
sheaf is bound is fixed, the lever C is arranged to turn freely on a pin C³, the
lever is operated by a revolving arm. We prefer to ise one of the ejector arihs
to operate this, when it is about to discharge the sheaf coming into contact with
the projecting part C and forcing it forward to cut the string. When the string
has been cut the knife lever C is returned to its normál positiob by the spring 01
and the sheaf is discharged.
To prevent the string passing prematurely into the discharging slot B' under
the strain which is placed upon it by the straw during the formation of a sheaf by
the packers we use a guide D placed across the slot B; the use of this guide is
well known in knotting mechanishi; but according to our invention we employ in
combination with this guide what we term an intercepter which is shown at E and
is a projection in the discharging slot B1 extending some distance beyond the
knotter A so as to ensure the safe holding of the string upon the knotter: In this
arrangement the string as it slips off the guide D through the tying of the knot is
caused to lie against the intercepter E as shown at Fig. 1, until such time as the
knife is operated to sever the string, when a projecting front or breast F formed upon
the lever C carrying the knife C₁ moving from the position shown in Fig. 2 to that
in Fig. 3 slides along or near to the end of the intercepter and pushes the string
therefrom so that the knot is free to escape through the slot B' as shown at
Fig. 3.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is
First. In knotting mechanism the combination with the slot through which the
knot passes as the sheaf is discharged, of à retainer for preventing the string from
passing prematurely into the said slot substantially as described by reference to
Figs: 1 2 and 3 of the accompanying drawings.
.
Second. Knotting mechanism constructed and arranged substantially as described
by reference to the several figures of the accompanying drawings.
Dated this Eighteenth day of July 1895.
JAMES HORNSBY.
JOHN INNOCENT.
ISAAC TROLLEY.