Improvements in Scrapers, Rakes, and the like Implements.
Year: 1889

page_text: Date of Application, 9th Apr., 1889
Complete Specification Left, 9th Jan., 1890-Accepted, 15th Feb., 1890
PROVISIONAL SPECIFICATION.
Improvements in Scrapers, Rakes, and the like Implements.
I, ROBERT HUNDLEBY of 304 Barnsley Road, Sheffield, in the County of York,
Steel Works Manager, do hereby declare the nature of my Invention for "IMPROVE
MENTS IN SCRAPERS, RAKES, AND THE LIKE IMPLEMENTS," to be as follows :-
Although my Invention is applicable to agricultural and similar Implements, it is
more particularly designed for use in Iron and Steel Works, Gas and Chemical
Works, Coke Ovens and similar places where the wearing parts are brought in
contact with heat, and are otherwise subjected to heavy or rough usage.
The object of my Invention is to provide an Implement, such as for example a
Scraper, or Rake, or the like, which shall be so constructed that the wearing portions,
such as the bit or blade, in the case of a scraper, or the prongs or teeth in the caso
of a rake, may be interchangeable, so that when such parts become worn, or broken,
they may be easily removed and replaced by others, or in some cases a scraper may
be converted into a rake, or other similar implement, by so interchanging the movable
parts.
I am aware that several Inventions have been patented for constructing such
implements with interchangeable bits or heads, and so far as my present Invention
relates to that object, I lay no claim to novelty, the essential features of my Invention
being the particular method or methods of construction and combination of parts
employed in such construction.
.
My improved Implement comprises the following parts viz. :
A shank, a socket or head, a blade or bit, and a split cotter, or other equivalent
fastening. The shank may be constructed either of wood, or of metal. But for
implements such as are employed in Iron and Steel Works, Gas and Chemical Works;
Coke Ovens and the like purposes, the shank would by preference, be constructed of
Iron or Steel, the lower end being tapered and provided with a cotter-hole or slot.
The socket or head of the implement I construct in cast or forged metal, by preference
in cast steel, this socket is provided with a hole running through it longitudinally,
into which the tapered end of the shank is fitted, a corresponding hole or slot, being
provided for the split cotter or other equivalent fastening by means of which the
shank or head is secured to the socket. The end of the socket is fitted with a jaw or
recess for the reception of the bit or blade of the rake, scraper or similar implement
herein before referred to, and in the case of a rake or scraper such jaw or recess would
be formed at right angles or thereabouts to the head or shank previously described.
The bit or blade I construct either in malleable or cast metal, tapering from the
working edge to the back, and the jaw or recess in the shank is also tapered so that
the blade or bit can only be entered by sliding it sideways into the same.
The blade or bit is likewise provided with a semicircular notch in the centre of its
thickened edge, so that after the shank has been inserted into the socket and through
this notch, the blade cannot be withdrawn, but will be held firmly in position.
It will therefore be seen, that in putting the respective parts of my improved
implement together, the blade must be first inserted into the jaw or recess of the
socket, with the notch, in a central position, so that when the shank is inserted into
the socket, and passed through the same beyond the jaw or recess, the blade is locked
in position, and by means of the split cotter or other equivalent fastening being driven
through the socket and shank the whole of the separate parts of the implement are
firmly secured together.
The operation of removing, exchanging, or renewing the several parts being thus
readily effected and the renewal of the wearing parts can be therefore accomplished
at much less cost than would be the case if the whole implement had to be cast aside,

page_text: when the blade or other part became worn or broken. In some cases I provide the
blade with a projection, or shoulder, or strengthening rib, so that when in position
such projection butt's up to the edge of the jaw or recess in the shank.
Dated this 6th day of April 1889
R. HEBER RADFORD,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Scrapers, Rakes, and the like Implements.
I, ROBERT HUNDLEBY of 304 Barnsley Road, Sheffield, in the County of York,
Steel Works Manager, do hereby declare the nature of my Invention for IMPROVE
MENTS IN SCRAPERS, RAKES AND THE LIKE IMPLEMENTS," and in what manner, the
same is to be performed, to be particularly described and ascertained in and by the
following statement :-
=
Although my Invention is applicable to agricultural and similar Implements, it is
more particularly designed for use in Iron and Steel Works, Gas and Chemical Works,
Coke Ovens and similar places where the wearing parts are brought in contact with
heat, and are otherwise subjected to heavy or rough usage.
1!
The object of my Invention is to provide an Implement, such as for example, a
Scraper, or Rake, or the like, which shall be so constructed that the wearing portions,
such as the bit or blade, in the case of a scraper, or the prongs or teeth in the case
of a rake, may be interchangeable, so that when such parts become worn, or broken,
they may be easily removed and replaced by others, or in some cases, a scraper may
be converted into a rake, or other similar implement, by so interchanging the movable
parts.
I am aware that several Inventions have been patented for constructing, such
implements with interchangeable bits or heads, and so far as my present Invention
relates to that object, I lay no claim to novelty, the essential features of my Invention
being the particular method or methods of construction and combination of parts
employed in such construction.
My Improved Implement comprises the following parts, viz.:.
A shank, a socket or head, a blade or bit, and a split cotter, or other equivalent
fastening. The shank may be constructed either of wood, or of metal, but for
implements such as are employed in Iron and Steel Works, Gas and Chemical Works,
Coke Ovens and the like purposes, the shank would, by preference, be constructed of
Iron or Steel, the lower end being tapered and provided with a cotter-hole or slot.
The socket or head of the implement I construct in cast or forged metal, by preference
in Cast Steel, this socket is provided with a hole running through it longitudinally,
into which the tapered end of the shank is fitted, a corresponding hole or slot, being
provided for the split cotter or other equivalent fastening by means of which the
shank or head is secured to the socket. The end of the socket, is fitted with a jaw, or
recess for the reception of the bit or blade of the rake, scraper, or similar implement
herein before referred to, and in the case of a rake or scraper such jaw or recess
would be formed at right angles or thereabouts to the head or shank previously
described. The bit or blade I construct either in malleable or cast metal, tapering
from the working edge to the back, and the jaw or recess in the shank is also
tapered so that the blade or bit can only be entered by sliding it sideways into the
same.
The blade, or bit is likewise provided" with a semicircular notch in the centre of its
thickened edge, so that after the shank has been inserted into the socket, and
through this notch, the blade cannot be withdrawn, but will be held firmly in
position.
J
Y
i
It will therefore be seen, that in putting the respective parts of my Improved
Implement together, the blade must be first inserted into the jaw or recess of the
socket, with the notch in a central position, so that when the shank is inserted into

page_text: R. HEBER RADFORD,
Agent for the Applicant.