IMPROVEMENTS IN KEAPING OR HARVESTING MACHINES
Year: 1884

page_text: COMPLETE SPECIFICATION.
I HENRY HARRIS LAKE, of the firm of Haseltine, Lake, and C° Patent Agents,
Southampton Buildings, London, in the County of Middlesex do hereby declare the
nature of said Invention for "IMPROVEMENTS IN KEAPING OR HARVESTING
MACHINES" 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 reapers or harvesters, and comprises various
improvements as hereinafter specified.
The object of the said Invention is to simplify the construction of harvester
rake mechanism, to increase its strength, and protect the cams and switch
mechanism from clogging with straws or the like.
In the accompanying Drawing.
Figure 1 is an elevation of the improved rake mechanism showing part of the
hood broken away, and three of the rake arms removed.
Figure 2 is a plan view of the same with part of the hood broken away, but
showing all the rake-arms in position, and
Figure 3, is a perspective view of the standard with part broken away to exhibit
the automatic switch device.
A indicates the standard or pedestal which consists of a hollow cast iron pillar
closed on the top and provided with a pin B. Around its circumference it is
provided with the camgroove I extending substantially its full height whereby
great leverage may be had to lift the rake arms. In addition to the ordinary
camgroove I, this standard is provided with an auxiliary camway I', which is
adapted to cause a rake to continue to move horizontally for a greater length of
time than usual when at its lowest position, and this auxiliary camgroove connects
with the camgroove I by means of switches M and M³, of which the switch M is
provided with an extension M' with which the roller running in the auxiliary
camway comes in contact, to automatically close the said switch. The switch M³
falls back by gravity or is pulled back by a spring and closes the auxiliary cam-
groove completing the main camway I as soon as the roller K has entered the latter
after passing out of the said auxiliary camway, as fully set forth hereinafter.
C indicates the hood or cap which is pivotted upon pin B, and extends down as
shown to cover the standard camways I, I¹ partly or wholly. The top of the said

page_text: hood C is provided with supports D to which the rake armis E are pivotted. The
bottom of said hood is furnished with teeth F with which the wheel G engages,
the latter being secured to the power shaft H which may have a bearing in the
standard A as at h.
K are the rollers which run in the camways I l' and are journalled on the ends
of bars J pivotted to the bottom of the hood C at J'. To the roller ends of these
bars J are hinged the lifting links L the upper ends of which are pivotted to the
rake arins E as shown. The links L reciprocate vertically through the apertures C¹
in the hood C.
The switch M is secured to the rock shaft N provided with an arm N', and is
normally kept closed by a spring O about shaft N.
P indicates a locking arm having a catch pand is secured to the rock shaft Q
which extends through the standard and has the arm S secured upon its end. This
shaft is kept normally in a position so that the arm P catches the arm N', by
means of a spring R.
Tindicates an actuating catch on the periphery of the hood and so located as to
strike the arm S to free the arm N₁ and the switch M. A solid piece M' is
arranged between the pawl M³ and the switch M to give strength.
The operation is as follows that is to say-As the hood is rotated by the
wheel G, it carries the rake arms with it, and the arms J drag the rollers K around
in the camgrooves I and I. All the rollers K run up, the switch M. remaining in
the camgroove I, until the projection T strikes the arm S, when the arm P is
withdrawn allowing the shaft N to be rotated and the switch M raised. The next
roller K will then pass under switch M and run into camgroove I' whereby this
Take arm rises at a later period. As the roller K rises in the camgroove l' it
strikes the extension M' on the switch M and automatically closes it before the next
roller comes into action, and as the roller still ascends it raises the switch pawl M³
and passes to the original camway I again, the said pawl M³ falling back in place
when relieved.
The latching mechanism is entirely enclosed within the hollow standard and
hence is fully protected and may be inspected through a door in the side, and the
great rise or throw of the camways enables a great leverage upon the rake arms E
and hence lifts them easily.
While I prefer the details of construction shown I do not limit myself thereto as
they may be modified in various ways without departing from my Invention.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed, I declare that what
I claim is
First. A supporting standard for the rake head provided on the top with a
journal pin, and on its circumference with the rake-actuating camgroove having all
the actuating faces arranged radially upon said standard, substantially as, and for
the purpose, specified.
.
Second. A supporting standard for the rake head provided on the top with a
journal pin, and on its circumference with the rake-actuating cam, in combination
with a hood supported upon the said standard, and partly, or wholly, enclosing the
said cam groove, one or more rake arms pivotted to the said hood, means for
rotating the said hood, rollers hinged to the said rake head or hood to work in the
said camway, and links connecting the said rollers with said rakes, substantially
as, and for, the purpose, specified.
Third. A supporting standard for the rake head made cylindrical, provided on t
its top with a journal or pin and upon its circumference with a main camgroove
having a great pitch, and an auxiliary camgroove in combination with automatic
switching devices by which the said auxiliary camgroove is opened to, or closed
from, the main camgroove, a rake head, rakes, rollers carried by the said rake hend
or hood and arranged to work in the said camgroove, and links connecting the said
rollers with the said rakes, substantially as, and for the purpose, specified.

page_text: Fourth. A supporting standard for the rake head made cylindrical, and provided
on its top with a journal or pin and upon its circumference with a main camgroove
having great pitch, and an auxiliary camgroove, in combination with automatic
switching devices by which the said auxiliary camgroove is opened to, or closed
from, the main camgroove, a rake head or hood enclosing the said camways and
pivotted upon the said standard, rakes, rollers carried by the said rake head or
hood and arranged to work in said camgroove, and links connecting with the said
rakes, substantially as, and for the purpose, specified.
Fifth. A hollow supporting standard for the rake head made cylindrical, provided
on its top with a journal or pin and upon its circumference with a main camgroove
having great pitch, and an auxiliary camgroove in combination with switches by
which the said auxiliary camway is opened or closed to the main camway, latching
mechanism, to control the movement of the said switches, located within the said
standards and protected thereby, a rake head, rakes, rollers carried by the said
rake head or hood and adapted to work in the said camgrooves, and links
connecting with the said rakes, substantially as, and for the purpose, specified.
Sixth. The combination of the standard A having the camgroove I and the
pin B, with the hood C, the rakes E, the arins J, the rollers K, and the links L,
substantially as, and for the purpose, specified.
Seventh. The combination of the standard A having the camgroove I and the
pin B, with the hood C, having teeth F on its hottom, the wheel G, the rakes E,
the arms J, the rollers K, and the links L, substantially as, and for the purpose,
specified.
Eighth. The combination of the standard A having the camgroove I, the cam-
groove 1, a switch M having an extension M¹, mechanism for actuating the said
switch, the pawl M³ and the pin B, with the hood C, the rakes E, the arms J, the
rollers K, and the links L, substantially as, and for the purpose, specified.
Ninth. The combination of the standard A having the camgroove I, the cam-
way I, the switch M having extension M, mechanism for actuating the said switch,
the pawl M³, shaft N having the arm N', the spring O, the shaft Q having the
arm P, the spring R, the arm S, the lug T, and the pin B, with the hood C,
the rakes E, the arms J, the rollers K and the links L, substantially as, and for
the purpose, specified.
Tenth. The combination of the camway I, the hood C, means for supporting
the said hood, the rake arins E, the radial arins J, the rollers K, and the links L,
substantially as, and for the purpose, specified.
Eleventh. A supporting standard for the rake head made of large diameter, and
provided on its circumferential surface with a rake-actuating camgroove so shaped
or formed that lines radiating substantially at right angles from the centre of the
said standard through the acting surface of said camgroove shall lic in horizontal
planes substantially as, and for the purpose, specified.
Dated this 05th day of May 1906
HASELTINE, LAKE & Co.,
For the Applicant.