Year: 1885

page_text: SAMUEL BRASSINGTON BAMFORD of the firm of Henry Bamford & Sons
Agricultural Engineers Uttoxeter Staffordshire do hereby declare the nature of
the invention for HORSE RAKES to be as follows:-
This invention relates to that kind of Horse Rake having a ratchet fixed on the
boss of each road wheel. Also two pawls fixed on the swinging frame and capable
of being engaged and disengaged from the said ratchet wheels respectively.
It is usual to control the action of the pawls by connecting them to the leverage
of the rake with rods pallets or latches, these I dispense with and I simply use a
small double ended lever placed against each of the pawls.
When the rake is being used for collecting the hay the pawls rest on stops fixed
on the top of the end brackets of the machine.
When it is necessary to liberate the gathered bay, the swing frame carrying the
pawls is slightly depressed by using the hand or foot lever of the rake.
The pawls are thereby drawn off the stop and fall in gear with the ratchet
wheels.
The swinging frame is then carried round by the motion of the ratchet wheels
until it has described such an angle as causes it to lift the teeth sufficiently high
to liberate therefrom the gathered hay.
On the end brackets of the machine are two stops against which the pawls'
strike when the swinging frame has been lowered. They are thereby thrown out
of gear with the ratchet wheels and the swinging frame rises and the rake teeth
fall down again to the ground.
When the pawls are thrown out of gear the long arms of the small double ended
levers fall against a notch placed on the bosses of each of the pawls and prevent
them dropping into gear with the ratchet wheels.
When the swinging frame has nearly risen to its full height the short arm of the
double ended levers are depressed by coming in contact with stops placed on the
side of the end brackets.
The longer arms of the double ended levers are then lifted up and they release
the pawls which then drop into their previous position on the stops at the top of
the end brackets..
i

page_text: SAMUEL BRASSINGTON BAMFORD of the firm of Henry Bamford & Sons,
Agricultural Engineers Uttoxeter, Staffordshire, do hereby declare the nature of
the invention for HORSE RAKES 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 that kind of Horse Rake having a ratchet fixed on the
boss of each road wheel.
:-
Also two pawls fixed on the swinging frame and capable of being engaged and
disengaged from the said ratchet wheels respectively.
It is usual to control the action of the pawls by connecting them to the leverage
of the rake with rods, pallets, or latches.
These I dispense with, and I simply use a small double-ended lever placed
against each of the pawls. When the rake is being used for collecting the hay the
pawls rest on stops fixed on the top of the end brackets of the machine.
When it is necessary to liberate, the gathered hay, the swing frame carrying
the pawls is slightly depressed by useing the hand or foot lever of the Rake.
The pawls are thereby drawn off the stop and fall in gear with the ratchet
wheels.
The swinging frame is then carried round by the motion of the ratchet wheels
until it has described such an angle as causes it to lift the teeth sufficiently high
to liberate therefrom the gathered hay.
On the end brackets of the machine are two stops against which the pawls
strike when the swinging frame has been lowered. They are thereby thrown out
of gear with the ratchet wheels and the swinging frame rises and the rake teeth
fall down again to the ground.
When the pawls are thrown out of gear the long arms of the small double ended
levers fall against a notch placed on the bosses of each of the pawls and prevent
them dropping into gear with the ratchet wheels.
When the swinging frame has nearly risen to its full height, the short arms of
the double ended levers are depressed by coming into contact with stops placed on
the side of the end brackets.
The longer arms of the double ended levers are then lifted up and they release
the pawls which theu drop into. their previous position on the stops at the top of
the end brackets.
In order that my invention may be fully understood, I will describe the same
with reference to the accompanying drawings:-
Figs. 1 & 2 are drawings of one side of a Rake to which is applied my invention.
A is one of the road wheels having a ratchet wheel B on the nathe C is the axle
of the rake having a bracket D and cam or stop E keyed fast on. The bracket D
H is the
carries the back bow of the Rake Fland stays G for emptying the teeth.
swinging frame carrying the teeth J, K is a pawl fixed on the swinging frame H,
and engages with the ratchet wheel B. This pawl when in position as in Fig. 1
rests on the stop L on the bracket D, and is then prevented from falling in gear
with the ratchet wheel B. A stop M is formed on the side of the boss of the

page_text: pawl K which coming in contact with the swinging frame H is prevented from
falling further back than shewn in Fig. 2.
N is a double ended lever fixed on the swinging frame H having its short end o
depressed by coming in contact with a stop on the bracket D as shown at Fig. 1.
The long arm of the double ended lever N is at the same time raised out of
contact with the stop P. on the boss of the pawl K
In useing the Rake for collecting hay, the pawl K rests on the stop L. When it
is necessary to release the gathered hay by raising the teeth, this can be done by
slightly depressing the swinging frame H with the usual hand or foot lever of
the Rake.
In doing so the pawl K is drawn off the stop L and falls in gear with the
ratchet wheel B. The swinging frame H is then carried round by the motion of
the ratchet wheel until it has described such an angle as causes it to lift the teeth
sufficiently high to liberate therefrom the gathered hay.
The pawl K then strikes on the cam E and is then thrown out of gear with the
ratchet wheel B and the rake teeth fall down again to the ground, and the swinging
frame H, rises to its former position..
In the last mentioned operation when the pawl K is thrown out of gear as
shewn at Fig. 2, the long arm of the double-ended lever N falls against the stop P
on the pawl K and thus during the time that the swinging frame H is rising, the
pawl K is prevented from falling in gear with the ratchet B.
When the swinging frame H has nearly risen to its former position the short
end O of the double-ended lever N is depressed by coming in contact with the
stop ou the bracket D thus raising the long arm off the the stop P on the pawl K.
The pawl K then falls on the stop L of the bracket Das in Fig. 1, and cannot
go in gear with the ratchet wheel B again until the operation of depressing the
swinging frame is repeated.
This invention may also be used in connection with rakes having only one
ratchet which might be placed at the end or in the centre of the machine.
Having now particularly described the nature of my said invention and in what
manner the same is to be performed, I declare that what I claim is :-
In self acting rakes, the use of a double-ended lever N acting with the pawl K
and ratchet wheel B as described.
Dated this 18th day of August 1886