Improvements in Chain Harrows.
Year: 1899

page_text: Improvements in Chain Harrows.
I, ALFRED DOMAN, of Terry Street, Kates Hill, Dudley, in the County of
Worcester, Traveller, do hereby declare the nature of this invention to be as
follows:-
The purpose of my invention is to combine all the advantages of an ordinary
chain and spiked harrow in one, by the introduction and use of dises or plates
of metal interspersed with the other links that help to form a chain harrow..
These discs or plates can be made in any shape or form varying in thickness.
with smooth or jagged edges and with holes or perforations, so that they can
be linked to or joined by the ordinary links or hooks used in chain harrows.
These discs or plates when joined to the other links of the harrow are so arranged
that their bottom edges cut into the ground and scarify the surface and loosen
the soil without injury to the roots, and to insure this object more fully, I
utilize the expanding bars by passing then through some or all of the discs, 80
as to keep the plates from wobbling sideways, so that the bottom edge of the
discs or plates must cut and penetrate the surface of the ground as the harrow
is being drawn over the land. By using my discs or plates the ground can
be thoroughly scarified and cleansed with far less labour to the horse than is,
required by using a spiked harrow, the plates or discs gliding over the surface
whilst their edges scarify and loosen the soil without adding little or much to
the draft.
1.
Tl 1000
Improvements in Unain Harrows.
I, ALFRED DOMAN, of Terry Street, Kates Hill, Dudley, in the County of
Worcester, Traveller, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and aseer-
tained in and by the following statement:-
This invention relates to chain harrows, used for improving pasture and other
lands, by disturbing and scattering mole hills, moss, cattle droppings and otlier
irregularities upon the surface of the land, and for the more effectually carrying
out of this purpose, I use metal discs with sharp points, which can be attached
to the ordinary links of a chain harrow, and so arranged that the points of the
discs will scarify the surface of the ground without penetrating too deep into
the soil, or interfering with the turf; yet will cut through cattle droppings,
Price 8d7

page_text: mole hills, and rank growths of herbage, whilst the other portion of the chain
harrow will scatter and disperse the loose soil and manure, levelling the small
hillocks as the harrow passes over the ground.
By using metal discs, I obtain all the advantages of a spiked harrow at half
the horse power, the 'discs cutting their way through the surface of the ground
without adding to the draft, or injuring the young shoots as is so often the case
where spiked harrows are used over grasslands.
The discs can be used in the place of ordinary links, or attached to the expand-
ing bars, the weight of the bars insuring their perfect action upon the surface
of the ground.
According to my invention, I make a metal disc or plate of oval or other shape
and varying in thickness, as represented in Figure 1, the disc a having a hole b
or perforation in the centre through which runs a perpendicular slot c, and
another slot d at right angles to the slot c, the jagged edges e of the disc being
opposite to the slot d. In Figure 2 is represented the disc as in use, the disc a
being connected to the links g of a chain harrow, the links ghaving been passed
through the slot d, into the slot c, the expanding bar f passing through the
centre hole of the disc between the links g prevents the links g from becoming
disengaged from the disc a, the bar falso keeping the jagged edges of the disc
in contact with the soil, the bar being inade to fit the centre hole, prevents all
wobbling and keeps the disé in its proper position.
I also make my discs without the slots c and d, as in Figure 3, the expanding
bar alone holding the discs in position when used between the connecting dises.
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
"
1.
1stly. The use of metal discs in chain harrows, and
2ndly., Connecting the discs to the links of a chain harrow, by the construction
and combination of parts hereinbefore described and illustrated in the accom-
panying drawings; that is to say, by slots and a centre hole in my metal discs,
I connect together the discs and links of a chain harrow, and secure the con-
nection by passing an expanding bar or bars through the discs, the said expand-
ing bar or bars locking the parts together and keeping the discs in position.
Dated this 31st day of March 1900.