Improvements in Catch or Locking Levers for Ploughs and other Implements or Machinery.
Year: 1891

page_text: Date of Application, 16th June. 1891
Complete Specification Left, 18th Feb., 1892-Accepted, 9th Apr., 1892
PROVISIONAL SPECIFICATION.
Improvements in Catch or Locking Levers for Ploughs and other
Implements or Machinery.
I, WILLIAM COOKE, of the firm of John Cooke and Sons, of Lindum Plough
Works, in the City of Lincoln, Agricultural Implement Manufacturers, do hereby
declare the nature of this invention to be as follows:-
This invention relates to improvements in catch or locking levers for ploughs
and other implements or machinery, and it has for its object to so construct such
levers that the catch rod with which each lever is provided can be readily
adjusted when its catch or tooth, which engages into the notches of the ordinary
rack, becomes worn, and also to enable the catch rod to be readily connected to the
lever without the necessity of careful fitting.
For the purpose of my invention, the catch rod instead of being as heretofore,
directly connected to its handle which operates it, is screw threaded at its upper
end and engages with a tapped nut or lug pivotally secured to such handle. Tuto
this tapped nnt or lug the said catch rod may be more or less screwed thus enabling
the catch rod to be lengthened or shortened when required, or its tooth to be
re-adjusted after wear.
I also provide the locking lever with a box or casing for containing the spiral
spring which surrounds the lower part of the catch rod, thereby dispensing with
the necessity of forming a slot for its reception in the lever as is now usual. This
box or case is so connected to the lever as to be capable of ready removal when
required.
T
100+
ERNEST DE PASS,
78, Fleet Street, London, and 6, Victoria Street, Nottingham,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Catch or Locking Levers for Ploughs and other
Implements or Machinery.
1, WILLIAM COOKE Plough Manufacturer and Implement Maker of the
Lindum Works in the City of Lincoln do hereby declare the nature of this inven-
tion and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement :-
The invention relates to improvements in catch or locking levers for ploughs and
other implements or machinery, and has for its object to construct such levers so
that the catch rod with which each lever is provided can be readily adjusted when
its catch or tooth, which engages into the notches of the ordinary rack becomes
worn, and also to enable the catch rod to be readily connected to or dis-connected
from the lever without the necessity or expense of careful and accurate fitting.
For the purpose of my invention the catch rod instead of being as heretofore
directly connected to its handle which operates it, is screw-threaded at its upper
end and engages with a tapped nut or lug pivotally secured to such handle.
Into this tapped nut or lug the said catch-rod may be more or less screwed,
thus enabling the catch-rod to be lengthened or shortened as may be required for
the proper and exact working of the lever, and the engagement of the tooth or
lower end of the rod into the notches in the rack, and when such tooth requires to
be re-adjusted after wear and tear.

page_text: I also provide the locking lever with a box or casing for containing the spiral
spring which surrounds the lower part of the catch-rod, thereby dispensing with
the necessity of forming a slot for its reception in the lever, as is now usual.
This box or case is so connected to the lever as to be capable of ready removal
when required.
My invention is applicable to any kind of locking-lever or catch-lever, used for
any purpose or machine &c., but the drawings herewith, annexed show the said
improved lever as attached to multiple furrow ploughs of my invention and
manufacture.
Figure 1 is the land side elevation of my 3-furrow plough, showing the improved
locking lever and its method of attachment, and Figures 2, 3 & 4 are enlarged
views of the same from the opposite side, and in different positions of view,
showing the details of construction sufficiently clearly.
B is the nut pivotally secured to the operating handle of the lever, and
forming one of the subjects of the present Patent.
D is the connecting or catch-rod screw-threaded into the. nut above named; and
terminating at its lower extremity in a catch or lug which is forced into the
notches or holes in the segmental rack C by the spiral spring; the whole being
held in position by the box or casing G, which is screwed on to the main lever A,
and which forms the other subject of the Patent.
As will at once be seen the whole of the parts of my improved lever are very
easily and expeditiously removable for the purpose of repairs and re-adjustment
when necessary; and so simple in action and disposition as to be very little liable
to derangement.
The pivotted mit and the spring box or case may be made of cast metal or
steel, or wrought iron or steel, or preferably of malleable cast iron.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, 1 declare that what I
claim is :-
1. The employment of the nut B. pivotally secured to the handle, and into which
the catch or connecting rod is screw-threaded at its upper extremity.
2. The spring box or case overlapping at its lower end the segmental notched
rack, and serving the purpose of holding and operating the spring and catch-rod,
and also of keeping all the said parts in position whilst moving to and fro along
the before mentioned segmental notched rack, substantially as drawn and
described.
Dated this 16th day of February 1892.
WILLIAM COOKE.