IMPROVEMENTS IN THE CONSTRUCTION OF EXPANDING HORSE HOES
Year: 1877

page_text: LETTERS PATENT to Frederick Crompton Lake, of Rayne Foundry, near
Braintree, in the County of Essex, Ironfounder and Agricultural Implement
Maker, for the Invention of "IMPROVEMENTS IN THE CONSTRUCTION OF
EXPANDING HORSE HOES."
PROVISIONAL SPECIFICATION left by the said Frederick Crompton Lake
at the Office of the Commissioners of Patents on the 2nd June 1877.
FREDERICK CROMPTON LAKE, of Rayne Foundry, near Braintree, in the
County of Essex, Ironfounder and Agricultural Implement Maker. " IMPROVE-
MENTS IN THE CONSTRUCTION OF EXPANDING HORSE HOES."
This Invention relates to certain improvements in the construction of expanding
horse hoes, whereby disadvantages which have attached to such implements as
hitherto constructed are avoided.
As heretofore arranged, the stems to which the shares are connected have been
formed of a circular section, and passed through circular holes or apertures in the
arms, eye bolts and nuts being employed to keep the stems in their place. The
consequence of this arrangement has been that when the hoe is at first expanded or
contracted, the points of the shares which are attached to the ends of the stems do
not stand parallel to each other, and it is necessary for the attendant to alter the
position of the shares by slackening the nuts on the eye bolts and turning the stems,
and as there is no guide by which the same can be set, they are sometimes placed in a
position in which the shares are not left parallel to each other, and by reason of the
stems and eye bolts being round they are liable to turn, which is sometimes the case
even when the stems and shares are set parallel to each other.
Under the present Invention these disadvantages are entirely avoided. The ends of
the stems above the arms are formed of a quadrangular section, upon which are
fitted the quadrants used for expanding or contracting the hoe, and which are pro-
vided with square holes to correspond with the quadrangular portions of the steins
above the arms. The stems are screwed above the quadrangular portions of the
stems, and are held to the quadrants by nuts. By slackening the nuts when
Den 11

page_text: expanding or contracting the hoe, the stems are turned by the quadrants into the
proper positions to bring them parallel to each other, and are thoroughly secured in
such positions by the quadrangular portions of the stems, which are incapable of
turning. The result is that the shares always point in a direction parallel to that
in which the hoe is moving.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by the
said Frederick Crompton Lake in the Great Seal Patent Office on the 1st
December 1877.
FREDERICK CROMPTON LAKE, of Rayne Foundry, near Braintree, in the
County of Essex, Ironfounder and Agricultural Implëment Maker. "IMPROVE-
MENTS IN THE CONSTRUCTION OF EXPANDING HORSE HOES."
My said Invention relates to certain improvements in the construction of expanding
horse hoes, whereby disadvantages which have attached to such implements as
hitherto constructed are avoided.
As heretofore arranged, the stems or stalks to which the shares are connected
have been formed of a circular section, and passed through circular holes or apertures
in the arms, eye bolts and nuts being employed to keep the stems or stalks in their
places. The consequence of this arrangement has been that when the hoe is at first
expanded or contracted the points of the shares which are attached to the ends of
the stems or stalks do not stand parallel to each other, and it is necessary for the
attendant to alter the position of the shares by slackening the nuts on the eye bolts
and turning the stems or stalks, and as there is no guide by which the same can be
set, they are sometimes placed in a position in which the shares are not left parallel
to each other, and by reason of the stems or stalks and eye bolts being circular, they
are liable to turn, which is sometimes the case even when the stems or stalks and
shares are set parallel to each other.
Under my said Invention these disadvantages are entirely avoided. The ends of
the stems or stalks above the arms are formed of a quadrangular section, and upon
the same are fitted the toothed segments or links used for expanding or contracting
the hoe, and which are provided with square holes to correspond with the quadran-
gular portions of the stems or stalks above, the arms. The stems or stalks are
screwed above the quadrangular portions of the same, and are held to the segments
or links.by-nuts-or-screws--By slackening the nuts when expanding or contracting
the hoe, the stems_or_stalks..are--turned-by the segnents or links into the proper
positions to bring them parallel to each other, and are thoroughly secured in such
positions by the quadrangular portions of the stems or stalks, which-latter are
incapable of turning. The result is that the shares always point-in-a-direction
-parallel to that in which the hoe-is-moving.
I will now proceed to refer to the annexed Drawings, from which the nature of
my said Invention will be more clearly understood.
Figure 1 is a side view of a horse hoe constructed in accordance with my said
Invention; and Figure 2 is a top view of the same.
Figure 3 is a detached view of the top of the stem or stalk.
The same letters of reference indicate similar parts in the several Figures.

page_text: The hoe stems or stalks are shewn at 9, 9.9.g, the same being caused to revolve
in the sockets of the arms f, f, by means of the four segments or links d, d, e, e,
which are so constructed that to whatever distance within the capacity of the hoe
the arms are extended, the shares b, b, c, c, will point in a direction parallel to that
in which the hoe is moving. The stems or stalks g,g, 9, 9, to which the shares are
attached are so constructed, as before mentioned, that they cannot turn in any
direction but that in which the hoe is working, thus affording a great advantage as
compared with the hoes in which stems or stalks of a circular section fastened with eye
bolts and nuts are employed, and imparting great rigidity and steadiness of action
to the implement. The sides or arms of the implement are caused to expand by
means of the two segments or links d, d, at the back part of the hoe, and which are
worked by the pinions H and L, which are so placed as to act with the segments or
links in keeping the shares pointed to the front, and at the same time to extend or
contract the arms according to the direction in which the pinions are turned.
Having thus declared and ascertained the nature of my sald Invention, and in
what manner the same is to be performed, I would observo in conclusion that
what I consider novel and original and therefore claim as constituting the Invention
secured to me by the said herein-berfore in part recited Letters Patent is, the combina-
tion and arrangement of parts and mechanism by means of which the hoe stems or
stalks to which the shares are attached are prevented from turning in any direction
but that in which the hoe is working, and the shares kept pointed to the front of the
implement, substantially as herein-before described and set forth.
In witness whereof, I, the said Frederick Crompton Lake, have hereunto
set my hand and seal, this Twenty-ninth day of November, in the year
of our Lord One thousand eight hundred and seventy-seven.
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