IMPROVEMENTS IN HORSE RAKES
Year: 1884

page_text: We WILLIAM NEWZAM NICHOLSON and WILLIAM MATHER of Newark upon
Trent, in the County of Nottingham, Agricultural Engineers, do hereby declare
the nature of our Invention for IMPROVEMENTS IN HORSE RAKES, to be as
follows:-
In our improved Horse Rake we fix to the connecting link between the lifting
and the tooth bar levers a spring which bears against one or other of tho said levers
on the rake being lifted, so that on the delivery of the load an impetus is given
which causes the teeth to drop more quickly.
By another arrangement we fix to a bracket attached to the fulcrum a similar
spring against which the lever impacts on the rake being lifted, with a like effect.
The stop against which the spring bears can be made adjustable so as to increase or
diminish the tension of the spring and so to cause the teeth of the rake to fall more
or less quickly as may be desired.

page_text: We WILLIAM NEWZAM NICHOLSON and WILLIAM MATHER of Newark upon Trent
in the County of Nottingham, Agricultural Engineers,-do hereby declare the
nature of our said Invention for "IMPROVEMENTS IN HORSE, RAKES" and in what
manner the same is to be performed, to be particularly described and ascertained in
and by the following statement :—
Our invention has for its object improvements in Horse Rakes whereby the lifted
teeth are more quickly returned back to their proper position for raking. In the
appended sheet of drawings Figure 1 represents in section so much of a Horse Rake
as is sufficient to describe our invention.
We fix to the connecting link A between the lifting lever B and the tooth bar
lever E a spiral spring C, which bears against a fixed stop a on the connecting link A
and an adjustable stop D.
The adjustable stop D is pivotted on the outer end of the tooth bar lever E and
is furnished with a set screw d so that the tension of the spiral spring C may be
adjusted. When the Rake is lifted as shown in the dotted lines the distance
between the two stops a and D is decreased and the spiral spring C compressed
between them; on the rake being released the compressed spiral spring C forces the
lifted teeth quickly back to their proper position for raking.
A similar arrangement of spring may be applied between the connecting link A
and the lifting lever B with the same results.
Another method of effecting the same object is to attach to the fulcrum bar of
the rake a bracket F which holds a spring H, this spring tends to force out
a plunger G which works in the bracket F and forms a buffer.
When the rake is lifted as shown in the dotted lines the lifting lever B impinges
against the end of the plunger G and compresses the spring H which when the rake
is released quickly returns the lifted teeth back to their proper position for raking.
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
1. The application of the spiral spring C, compressed between a stop in the
connecting link A and another stop D attached to either the tooth bar lever E or
to the lifting lever B substantially as shown and for the purposes described, or any
mere modification thereof.
2. The application of the spring H and the bracket F to the fulcrum bar forming
a buffer to the lifting lever B substantially as shown and for the purposes described,
or any mere modification thereof.