Improvements in Hay Tedders.
Year: 1890

page_text: Date of Application, 28th Aug., 1890
Complete Specification Left, 28th May, 1891-Accepted, 18th July. 1891
PROVISIONAL SPECIFICATION.
Improvements in Hay Tedders.
We, GEORGE CLARKE OGLE and WILLIAM OGLE, both of the firm of
G. C. Ogle and Son, Perseverance Works, Ripley, in the County of Derby,
Agricultural Implement Manufacturers, do hereby declare the nature of this
invention to be as follows:-
This invention relates to hay tedders in which the forks are carried by arms
operated by cranks and links connected by suitable gear to the wheels of the
tedder.
In tedders of this description the working height of the forks from the ground
has hitherto been adjusted by canting the framing carrying the crank shaft
relatively to the shafts to which the horse is harnessed, but with this arrangement
the working height of the forks is caused to vary by the action of the horse or
inequalities in the surface of the land thus working unevenly.
In carrying out our invention the framing carrying the crank shaft is pivotted
freely at the front preferably on or to the axis of the tedder and the back in which
is journalled the crank shaft is permitted to fall by its own weight. To maintain
the back of the framing and consequently the crank shaft at a constant distance
from the ground we employ one or more wheels which run on the ground carried in
bearings connected to the back of the framing by adjustable connections.
By this arrangement the crank shaft to which the fork arms are connected rises
or falls independently of any other part of the tedder and will follow any inequality
in the ground, the forks can consequently be adjusted so as to work close to the
ground and will thus always take up practically the whole of the hay.
If desirable the framing and crank shaft may be sub-divided so that one part
may be independent of another, provision may also be made for raising the framing
or framings when it is desired to put the forks out of action.
Dated this 28th day of August 1890.
W. P. THOMPSON & BOULT,
Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Hay Tedders.
We, GEORGE CLARKE OGLE and WILLIAM OGLE both of the firm of
G. C. Ogle & Son, Perseverance Works, Ripley, in the County of Derby,
Agricultural Implement Manufacturers, do hereby declare the nature of this
invention and in what manner the same is to be performed to he particularly
described and ascertained in and by the following statement :-
This invention relates to hay tedders in which the forks are carried by levers
connected to the framing by links and operated by cranks connected by suitable.
gear to the wheels of the tedder.
It will be best understood by reference to the accompanying drawings in which
Fig. 1 is an elevation partly in section and Fig. 2 a plan of a tedder constructed
according to our invention.
In tedders of this description the working height of the forks has hitherto been
adjusted by canting the framing carrying the crank-shaft relatively to the shafts to
which the horse is harnessed but with this arrangement the working height of the
forks is caused to vary by the action of the horse or inequalities in the surface of
the land thus working unevenly.

page_text: In carrying out our invention the framing A carrying the crank-shaft_B_is
pivotted at the front to the axle C of the wheels of the tedder; or if preferred the
shafts D may be pivotted to the axle C and the framing A hinged to them.
The rear of the framing carrying the crank-shaft B will thus fall by its own
weight and to maintain it at a constant height from the ground we employ one or
more wheels E which run on the ground and are carried upon pivots or shafts F
adjustable in the downward extensions G of the framing A. By this arrangement
the crank-shaft B to which the fork levers are connected rises or falls independently
of the other parts of the tedder and will follow any inequality of the ground; the
forks can consequently be adjusted so as to work close to the ground and will thus
practically take up the whole of the hay.
The crank-shaft B is actuated in the usual manner by wheel and pinion I and J
secured respectively to the wheel of the tedder and to the crank-shaft and an
intermediate wheel K carried upon the framing A.
If desired the framing A and crank shaft B may be divided as shown in Fig. 2
so that one part may be independent of the other and with this arrangement the
mechanism for driving the crank shafts and supporting the framing will be
duplicated.
The framing A may be raised by a lever L pivotted in the bracket M secured to
the shafts D, one end of the lever being connected to the framing A by a chain or
other flexible connection N; the remaining long end of the lever may be depressed
by the attendant and be retained by the catch Ŏ.
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 ;--
1. A hay tedder in which the fork-operating-crank-shaft is automatically
maintained at a constant distance from the ground independently of the shafts
substantially as described.
2. A hay tedder in which the fork-operating-crank-shaft is maintained at a
constant distance from the ground by one or more following wheels such as E
substantially as described and illustrated in the accompanying drawings.
3. A hay tedder in which the fork-operating-crank-shaft is so carried that its
movements or position are independent of the shafts substantially as described.
Dated this 26th day of May 1891.
GEORGE CLARKE OGLE.
WILLIAM OGLE.
W. P. Thompson & Boult,
Agents for the Applicants.