Improvements in Knotting Mechanism for Sheaf Binders.
Year: 1894

page_text: Date of Application, 26th Oct., 1894
Complete Specification Left, 24th July, 1895-Accepted, 19th Oct.,
1895
PROVISIONAL SPECIFICATION.
Improvements in Knotting Mechanism for Sheaf Binders.
JAMES HORNSBY and JOHN HENRY SMITH both of Spittlegate Iron Works
Grantham Engineers, do hereby declare the nature of this invention to be as
follows:-
This invention relates to certain improvements upon a former Patent No. 23,204
December 2nd 1893, Hornsby Innocent and Trolley an consists in mounting an
intercepting lever on the knotter plate. One end of this lever passes across the
opening in the knotter plate through which the needle and the twine which binds
the sheaf pass, this end of the lever is mounted in such a position that the twine
is securely held on the knotter head, the end of the lever passes across the
opening in the knotter plate through which the twine passes and there holds the
twine that passes around the upper and lower part of the sheaf until the knot
is completed, the lever is then automatically withdrawn and the sheaf discharged.
After the sheaf is discharged the lever is again placed across the opening in
the knotter plate to intercept the twine.
The lever is mounted on the knotter plate and vibrates upon it, being worked
by the string knife lever.
The intercepting lever vibrates on a pin at about the middle of its length one
end of the lever intercepts the twine on the other end is a pin operated by the
string knife lever, this pin passes through a slot in the string knife lever and as
the string knife lever is passed forward to cut the string it withdraws the
intercepting lever and allows the strings that surround the sheaf to be drawn off
the knotter and to pass down the slot and the sheaf to be discharged.
Deted this 24th dex of October 1894.
JAMES
HORNSBY.
JOHN HENRY SMITH.
Improvements in Knotting Mechanism for Sheaf Binders.
JAMES HORNSBY and JOHN HENRY SMITH both 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 No. 23,204,
Dec. 2nd 1893, Hornsby Innocent & Trolley, and consists in mounting an inter-
cepting lever on the knotter plate. One end of the lever passes across the opening
in the knotter plate through which the needle and twine passes, and there holds the
twine that passes round the sheaf until the knot is completed, the lever is then
automatically withdrawn and the sheaf discharged, after the sheaf is discharged
the lever is again placed across the opening in the knotter plate. The lever is
mouated on the knotter plate and is worked by the string knife lever. The
intercepting lever vibrates on a pin at about the middle of its length, one end of
this lever is hook shaped and intercepts the twine, on the other end is a pin which

page_text: is operated by the string knife lever this pin passes through a slot in the string
knife lever and as the string knife is passed forward to cut the string it rocks the
intercepting lever and withdraws the hook end of the lever and allows the strings
that surround the sheaf to be drawn off the knotter and to pass down the slot and
the sheaf to be discharged. In the drawings we only show so much as will serve to
explain our invention.
Fig. 1. shows a side elevation of the parts.
Fig. 2. shows a plan with the intercepting lever in position to stop the twine.
Fig. 3. shows the same parts as Fig. 2. but with the intercepting lever withdrawn,
the knot tied and in position for the sheaf to be discharged.
Similar letters of reference indicate corresponding parts in the several figures.
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 needle advances
and retires. The part B' of this slot forms 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 Figure 3.
C. is the string knife lever to which the knife C' 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 C. is operated by a revolving arm we prefer to use one of the ejector arms to
operate this when it is about to discharge the sheaf coming into contact with the
projecting part C³ and forcing it forward to cut the string so that the sheaf is free
to be discharged. When the string has been cut the knife lever C. is returned to
its normal position by a spring C*.
D. is a lever pivotted at D¹ in the knotter plate which we provide for preventing
the string from passing prematurely into the discharging slot B¹ under the strain
which is placed upon it by the straw during the formation of the sheaf by the
packers. One end D2 of the lever D. is hooked shaped, which, whilst the knot is
tied, occupies a position across the mouth of the slot B. as shown at Fig. 2 the
other end of the lever engaging by means of a pin D with a slot D in the arm C.
The said pin D³ and slot D₁ being so arranged that when the arm C. is moved
forward in the manner hereinbefore described to cut the string, the hook D² will
be moved to the position shown at Figure 3 and allow the knot to escape and the
sheaf to be discharged. E shows the usual gripper that holds the extreme ends of
the twine while the knot is tied.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1st. In knotting mechanism the combination with the slot through which the
knot passes as the sheaf is discharged of an intercepting lever for preventing
the twine from passing prematurely into the said slot substantially as described
and shown by reference to Figs. 1. 2. and 3. of the accompanying drawings.
2nd. Knotting mechanism provided with the improvements herein before described
with reference to the accompanying drawings and operated as specified.
Dated this 23rd day of July 1805
JAMES HORNSBY.
J. H. SMITH.