An Improvement in or pertaining to Hoes, Spades, and other similar Implements.
Year: 1890

page_text: Date of Application, 19th Apr., 1890
Complete Specification Left, 17th Jan., 1891-Accepted, 21st Feb., 1891
PROVISIONAL SPECIFICATION.
An Improvement in or pertaining to Hoes, Spades, and other similar
Implements.
Communicated by JOHN MCDONNELL, of Haldumulla, in the Island of Ceylon, of
Her Majesty's Public Works Department.
1 JAMES HART-DAVIES M.A. of the firm of Hart & Co. Patent Agents of
186 Fleet Street in the City of London do hereby declare the nature of this
invention to be as follows:-
A great evil is experienced in and with hoes and spades and other similar imple-
ments in that after a comparatively short period of use the blade of the implement
is so worn away as to render the same useless and necessitate the employment of a
new implement whereby a great and needless expense is incurred as only the blade
has so worn away and the eye and the shaft if any or the socket or other portion
of the working part of the implement that is attached or secured to the handle
thereof is intact and as a general rule as good as ever it was and this evil is more
especially experienced in hoes and other percussive implements.
Now the object of this invention is to remedy this evil and thus effect a great
economy in the use of these implements.
To carry out this object I take a piece of steel or other suitable metal or material
and I form the same into a shape similar to the blade of the hoe or spade or other
implement with which it is to be used or thereabouts that is to say so far as the
edge and the sides thereof are concerned the remaining part being formed of any
shape and in any manner so as to be capable of being attached to the stump or worn
part of the blade of the implement which stump or worn part may previously if
desired or necessary have been trimmed or otherwise prepared for such attachment.
This attachment of the separate and new blade to the worn one may be effected in
any convenient and usual manner. For example it may be effected by welding
but it is most convenient to rivet or bolt the two parts together in which case the
separate blades could be constructed with the required holes and when the blade
of the implement had worn away and the stump thereof had been duly prepared if
necessary for the new blade it would only remain to create corresponding holes
therein and then rivet or bolt the two parts together or when great strength is
required it would be still more convenient to fork or split this the inner edge of
the separate blade so that it could be passed and remain on both sides of the stump
or worn part of the blade of the implement and there be welded or rivetted or
bolted thereto and these new blades could thus be renewed again and again as
often as might be requisite whereby a great economy would be effected as is
desired.
COMPLETE SPECIFICATION.
An Improvement in or pertaining to Hoes, Spades, and other similar
Implements.
Communicated by JOHN MCDONNELL, of Haldumulla, in the Island of Ceylon, of
Her Majesty's Public Works Department.
I JAMES HART-DAVIES M.A. of the firm of Hart & Co. Patent Agents of
186 Fleet Street in the City of London do hereby declare the nature of this
invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
A great evil is experienced in and with hoes and spades and other similar

page_text: implements in that after a comparatively short period of use the blade of the
implement is so worn away as to render the same useless and to necessitate the
employment of a new implement whereby it is obvious that a great and needless
expense is incurred and a great and needless waste is occasioned as only the blade
has so worn away and the eye and the shaft if any or the socket or other portion
of the working part of the implement that is attached or secured or connected to
or mounted or fitted on the handle thereof is intact and is as a general rule as
good as ever it was and this evil is the more especially experienced in and with hoes
and picks other percussive implements.
Now the object of this invention is to remedy this evil and thus effect a great
economy in the use of these implements.
In order the more clearly to explain this invention and in what manner the same
is to be performed I refer to the accompanying drawing wherein I have shewn an
ordinary hoe as fitted with and repaired or constructed according to this invention
and
Figures 1 and 2 are elevations of the two parts of the blade thereof
Figure 3 is a perspective view of the complete hoe and
Figures 4 and 5 are longitudinal sections of the blade thereof all as will hercin-
after be described and explained.
I take a piece of steel or other suitable metal or material shewn in Figure 2 and
I form the same into a shape similar to that of the blade of the hoe with
which it is to be used or thereabouts that is to say so far as the faces thereof and
the lower or cutting edge and the sides thereof are concerned the remaining
part that is the upper edge thereof being preferably formed of such shape and in
such manner as is shewn in the drawing for the purpose hereinafter stated. I
also take the stump or worn part of the hoe shewn in Figure 1 and if it be
desirable or necessary or convenient so to do which will generally be the case I
trim or cut or otherwise treat the worn edge that is the lower edge thereof in such
wise as to prepare and make ready the same for the purpose hereinafter stated.
These two edges that is to say the upper edge of the new blade shewn in Figure 2
and the lower edge of the stump or worn part shewn in Figure 1 are the meeting
edges and they are so formed and created and fitted and treated that they are
capable of and suitable for being attached or rigidly connected together in any
convenient and suitable manner and by and through any usual method and devices
in all cases the joint being preferably horizontal and extending across the entire
breadth of the blade in the desired or arranged for position in its length.
These two parts of the blade may be attached together by welding or otherwise
but it is generally most convenient to proceed as is shewn in the drawing according
to which arrangement a lap joint is formed by the two edges which are connected
together by bolts or rivets and to decrease the depth of this lap joint and thus
render the hoe lighter and to reduce the number of the bolts or rivets without
endangering or unduly lessening the rigidity or strength of the blade it is extremely
convenient to form on the meeting edge of the new blade a tongue or projection
preferably centrally as is shewn in the drawing wherethrough a bolt or rivet can
be passed out of the line of the other bolts or rivets of the joint and a corresponding
or complementary tongue or projection may if and when desired be formed on the
meeting edge of the stump or worn part as also is shewn in the drawing to be fitted
and treated in the same manner.
When the two parts of the blade are to be connected together by bolts or rivets
it is obviously most convenient to construct and form the new blade with the
required holes therein and then when the blade of the hoe had worn away and the
stump thereof had been duly prepared if necessary for the connection thereto of
the new blade it would only remain to create the required corresponding holes therein
and then to bolt or rivet the two parts together and thus what is practically a new
hoe as is shewn in Figure 3 is created with a minimum of expense and little or no
waste as is desired.
According to another arrangement or mode of using and performing this invention

page_text: instead of forming at the first instance the blade of the hoe in one piece and then
waiting until this blade had worn away before fitting a new blade thereto as is
hereinbefore described the blade of the hoe can originally and at the first instance
be made in the two parts hereinbefore described and shewn in the drawing and then
when the separate or lower part of the blade of the hoe had worn away it would
only be necessary to remove or knock out the bolts or rivets and replace this worn
separate or lower part of the blade with and by a new one and here it may be fitly
mentioned that on the whole it is perhaps most convenient that the stump or eye
part of this divided blade of the hoe should extend and be from one third to
one half of the entire length of the blade the separate or lower part of the blade
constituting the remainder of such entire length.
As a general rule the separate blade is so secured on the stump or eye part as
aforesaid on one side thereof preferably the further side thereof as is shewn in
Figures 3 and 4 but when great strength is required in the blade the meeting edge
of the separate blade may be longitudinally forked or split or divided as is shewn
in Figure 5 so that it can be passed on both sides of the meeting edge of the stump
or eye part and be there and thus attached or connected in manner as hereinbefore
described.
Thus and in this manner the blades of these hoes could be renewed again and
again as often as may be required whereby obviously a great economy would be
effected in the use of these implements as is desired.
In the same manner spades and picks and other similar implements would
be fitted and treated and no further description or explanation is or can be
needed.
Having now particularly described and ascertained the nature of this said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
The arrangement and combination of parts and appliances constituting this
improvement in or pertaining to hoes spades and other similar implements sub-
stantially as hereinbefore described and shewn in the accompanying drawing.
Dated this 15th dor of Tanu 1901
HART & Co.