IMPROVEMENTS IN HORSE RAKES
Year: 1866

page_text: LETTERS PATENT to Robert Maynard and Robert Maynard, the younger,
Engineers, of Whittlesford, in the County of Cambridge, for the Invention'
of "IMPROVEMENTS IN HORSE RAKES."
PROVISIONAL SPECIFICATION left by the said Robert Maynard and
Robert Maynard, the younger, at the Office of the Commissioners of
Patents, with their Petition, on the 29th May 1866.
We, ROBERT MAYNARD and ROBERT - MAYNARD, the younger, Engineers, of
Whittlesford, in the County of Cambridge, do hereby declare the nature of
the said Invention for "IMPROVEMENTS IN HORSE RAKES," to be as follows:-
This Invention has for its object improvements in horse rakes. Heretofore
in the construction of horse rakes it has been usual so to combine the parts.
as to require the power of a man to raise the teeth off the land when it is.
desired to deposit thereon the material which has been accumulated in the
teeth.
Now according to the present Invention horse rakes are so constructed
that the teeth may from time to time be lifted or raised by the power of the
horse, and again allowed to descend on to the land. It is preferred that the
power for lifting the teeth off the land should be derived from the revolution.
of one or both of the carrying wheels, and for this purpose to that part of the
framework of a horse rake which carries the teeth, and upon which when
being relieved of the accumulation they perform part of a revolution, is attached
a sliding bolt, which is forced between two of the spokes of the wheel by a

page_text: lever, to which lever a cord is attached, so that when the attendant pulls the
cord the bolt is brought into position between the spokes and revolves with
the wheel, carrying the teeth with it till they are brought, to such a height
that the accumulation falls off, when the bolt being withdrawn the teeth again
descend to the ground. Or the carrying wheels may drive a train of spur or
other gear, and this train of gear so driven raises a weight connected with
the rake teeth, and when these teeth are required to be raised a catch is with-
drawn and the weight-in falling lifts the teeth. As the machine travels on
the weight is again lifted by the wheels to act a second time on the teeth in
the manner described.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Robert Maynard and Robert Maynard, the younger, in the
Great Seal: Patent Office on the 19th November 1866.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, ROBERT
MAYNARD and ROBERT MAYNARD, the younger, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-ninth day of May, in the year of our Lord One
thousand eight hundred and sixty-six, in the twenty-ninth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto us, the said
Robert Maynard and Robert Maynard, the younger, Her special licence
that we, the said Robert Maynard and Robert Maynard, the younger, our
executors, administrators, and assigns, or such others as we; the said Robert
Maynard and Robert Maynard, the younger, our executors, administrators, and
assigns, should at any time agree with, and no others, from time to time and
at all times thereafter during the term therein expressed, should and lawfully
might make, use, exercise, and vend, within the United Kingdom of Great
Britain and Ireland, the Channel Islands, and Isle of Man, an Invention for
"IMPROVEMENTS IN HORSE RAKES," upon the condition (amongst others) that
we, the said Robert Maynard and Robert Maynard, the younger, our
executors or administrators, by an instrument in writing under our, or their
or one of their hands and seals, should particularly describe and ascertain
the nature of the said Invention, and in what manner the same was to be
performed, and cause the same to be filed in the Great Seal Patent Office
within six calendar months next and immediately after the date of the said.
Letters Patent.
t 7

page_text: rocking spindle O. On each end of the rocking spindle is a lever P. Q is a
chain loosely suspended from the shaft A, and fastened to the sliding bolt.
In order to cause the teeth to ascend, the lever is brought forward either by
pulling the cord S, or the pressure of the foot of a person riding on the seat T;
this gives motion to the crank and forces the sliding bolt into its position
between the spokes of the wheel B', which by its revolution depresses the
arms I and the joints of the teeth, and the teeth resting on the axle as a
fulcrum are raised from the ground till the chain becoming tight releases the
sliding bolt and they return to the ground.
Although we have herein described the best way with which we are at
present acquainted for carrying out our Invention, and claim the arrangement
of parts as set forth, we would have it understood that we do not confine
ourselves rigidly to such arrangement, but claim any variation of it, so as by
means of a sliding bolt used in the way we have described, or in any other.
way, to cause the teeth of a horse rake to ascend by the power of the horse
for the purpose of relieving them of the accumulation.
In witness' whereof, we, the said Robert Maynard and Robert Maynard,
the younger, have hereunto set our hands and seals, this. Seventeenth
day of November, in the year of our Lord One thousand eight hundred.
and sixty-six.

page_text: NOW KNOW YE, that we, the said Robert Maynard and Robert Maynard,
the younger, do hereby declare the nature of our said Invention, and in what
manner the same is to be performed; to be particularly described and ascertained
in and by the following statement
This Invention has for its object improvements in horse rakes. Heretofore
in the construction of horse rakes it has been usual so to combine the parts
as to require the power of a man to raise the teeth off the land when it is
desired to deposit thereon the material which has accumulated in the
teeth.
Now according to the present Invention horse rakes are so constructed that
the teeth may from time to time be lifted or raised by the power of the horse,
and again allowed to descend on to the land. It is preferred that the power-
of-lifting the teeth off the land should be derived from the revolution of one
or both of the carrying wheels, and for this purpose to that part of the frame--
work of a horse rake which carries the teeth, and upon which when being
relieved of the accumulation they perform part of a revolution, is attached a
sliding bolt, which is forced between two of the spokes of the wheel by a lever,
to which lever à cord is attached, so that when the attendant pulls the cord
the bolt is brought into position between the spokes and revolves with the
wheel carrying the teeth with it till they are brought to such a height that the
accumulation falls off, when the bolt, being withdrawn the teeth again descend
to the ground. Or the carrying wheels may drive a train of spur or other
gear, and this train of gear so driven raises a weight connected with the rake
teeth, and when these teeth are required to be raised a catch is withdrawn
and the weight in falling lifts the teeth. As the machine travels on, the
weight is again lifted by the wheel to act a second time on the teeth in the
manner described.
The accompanying Drawings shew a horse rake with our improvements.
Figure 1 is an end elevation; Figure 2 is a front elevation; Figure 3 is a
horizontal or bird's-eye view.
A, A, are the shafts; B and B₁ are the carrying wheels; C is the main
frame; D is the axle upon which the carrying wheels revolve; E, E, are
brackets bolted to the main frame, through which brackets the arms of the
axle project and within which they are free to revolve; F, F, are radiating
arms firmly fastened to the axle; through the ends of these arms and likewise
through the elongated arms F and F passes the rod R, upon which rod the
joints H of the teeth I work. Through the extremities of the arms F1 and F
passes the sliding bolt G. This sliding bolt is connected by a swivel and rod K
to the crank L, which crank is connected by the link M to the arm N on the