Year: 1886

page_text: Date of Application, 31st May, 1886.
Complete Left, 23rd Feb., 1887.
Complete Accepted, 25th Mar., 1887.
I CHARLES CLAY of the Stennard Works, Wakefield in the County of York
Agricultural Engineer do hereby declare the nature of this invention to be as
follows:-
This Invention has for its object improvements in chain harrows.
I employ in the construction of such harrows, links, formed by bending as herein
after described a rod of metal in such manner as to bring its two ends parallel the one
to the other so that in the harrow the ends may project downwards and serve as tines.
In passing from side to side of the harrow these links alternate with square links; they
extend from one square link to another connecting the adjacent angles of these links.
The form of the tine links may be more closely described as follows:-Commencing
at the point of one of the tines the rod passes upwards between the two square links
which the tine link connects, then the bar bends over and it passes through one of the
square links to the underside it crosses in rear of the tine to the other square link of
the pair which the tine link couples, it passes up through this link and being bent
over forms a second tine similar to the first. The tine link is symmetrical on its two
sides.
The harrow is made up of a series of transverse rows of links as above stated and
these rows are connected together one behind the other by other square or oblong
links which stand on edge when the harrow is at work and which connect the square
links of the transverse rows, the front angle of one link to the rear angle of another.
The harrow may be provided with a plain or tineless section in rear of a leading
section provided with tines as described. Or the entire harrow may be made with
tines.
Although I prefer to employ square links in the transverse rows, this is not essential
as circular links may be substituted.
A chain harrow such as I have described is easily constructed and the tine links
when they become worn are easily removed and replaced.
Dead this 21st day of May 1886.
CARPMAEL & Co.,
Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Chain Harrows.
I, CHARLES CLAY of the Stennard Works Wakefield in the County of York,
Agricultural Engineer, 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:—
This invention has for its object improvements in chain harrows.
I employ in the construction of such harrows, links formed as herein after described
of a bar of metal bent or formed in such manner as to bring its two ends parallel the
one to the other so that in the harrow the ends may project downwards and serve as
tines. In passing from side to side of the harrow these links alternate with square
links; they extend from one square link to another connecting the adjacent angles of
these links. The form of the tine links may be more closely described as follows :-
Commencing at the point of one of the tines the bar passes upwards between the two
square links which the. tine link connects, then the bar bends over and it passes
through one of the square links to the underside, it crosses in rear of the tine to the
other square link of the pair which the tino link couples, it passes up through this link
and being bent over forms a second tine similar to the first. The tino link is
symmetrical on its two sides.
The harrow is made up of a series of transverse rows of links as above stated and
these rows are connected together one behind the other by other square or oblong links
which stand on edge when the harrow is at work and which connect the square links
of the transverse rows, the front angle of one link to the rear angle of another.
The harrow may be provided with a plain or tineless section in rear of a leading
section provided with tines as described. Or, the entire harrow may be made with
tines.
Although I prefer to employ square links in the transverse rows, this is not essential
as circular links may be substituted.
A chain harrow such as I have described is easily constructed and the tine links
when they become worn are easily removed and replaced.
The drawing annexed shews various views of a chain harrow constructed as above
described.
Figure 1 is a perspective view of a harrow complete.
Figure 2 is a plan view, and
Figure 3 an elevation of a few of its links.
A are the tine links, they may be made by bending bars of wrought iron or steel to
the form required or may be cast in the required form in malleable cast iron or steel,
B the square links, C the longitudinal links connecting the square links in one row to
the square links in the rows in front of and behind it. The links A are in the first
instance made with the bends in them open as shewn on the left hand side of the
drawing, Figure 2; so that the vertical tines or teeth where they cross the horizontal
bar of the link are at a distance from it so that the tine links can readily be threaded

page_text: on to the square links and the bends be afterwards flattened in such a manner as to
bring the vertical tines against the horizontal bars of the links as shewn in the other
parts of the Figure.
The tino links are as will be seen readily removable and when worn out or damaged
can be refitted with new ones by any ordinary workman while in the field. As before
stated either the whole harrow may be made as shewn with tine links throughout the
whole of it or the front portion only may be made in this way and the hinder portion
be made of the usual plain link pattern.
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. A chain harrow link of metal bent or formed as described so that its two ends
may be made to project downwards and serve as tines.
2. The construction of chain harrows substantially as herein before described and
illustrated in the drawings annexed.
1
30 1 1
Л TA 1
CARPMAEL & Co.,
Agents for the Applicant.