Year: 1886

page_text: Date of Application, 10th June, 1886
Complete Left, 9th Mar., 1887.
Complete Accepted, 15th Apr., 1887.
EDWARD CHRISTOPHER BLACKSTONE, of Rutland Iron Works, Stamford in the
County of Lincoln, Agricultural Implement Maker, do hereby declare the nature of
this invention to be as follows:-
This invention relates more particularly to the construction of haymaker described
in the specification of a patent granted to me and bearing date March 6th 1884,
No. 4485, but is also applicable to laymakers of other constructions.
In the patent above mentioned, the fine bars are set at an angle to the axle,
instead of being parallel therewith, and it has been found desirable to secure each
tooth or tine to the bar separately, so that it will give on passing an obstruction; and
the invention consists in a novel construction of spring holders for securing the tines
to the tine bar.
In carrying out my invention, I secure, by a bolt or bolts, to the tine bar, which is
preferably of angle iron, a pair of castings, one outside, and the other inside the bar.
The external casting consists of a boss or lump formed with a lateral lug or car, by
which it is secured to the bar. In the boss or lump is a vertical groove to receive
the tine, the sides of the groove forming a lateral stay to hold the fine in a vertical
position. There is also a horizontal or transverse slot to receive a hook or other
device for holding the tine. The inner casting consists of a boss or lump, and a
lug or ear, and the boss is pierced to receive the end of the hook or other holding
device. As the time bar is set at an angle to the axle, and the tine must be so
arranged as to move in the direction of the line of draught, the external faces of the
castings are so formed as to give a straight pull on the tine."
The tine head is placed in the groove, and the stem of the hook is inserted through
the bosses, the hook entering in a shallow recess formed in the head of the tine. A spring,
preferably a volute spring, is placed on the stem of the hook, and the whole is secured
together by a nut.

page_text: Instead of the inner casting, I may use a step tine bar, the flat portions serving the
same end as the casting.
On meeting an obstruction, the tine will be caused to pull on the hook, and so
compress the spring, which will return the tine to its normal position when the
obstruction is passed.
When the invention is applied to a straight tine bar, the inner casting may be
dispensed with, and the outer casting will be slightly modified in form to suit the
altered circumstances.
NEWTON & SON,
Agents for the Applicant.

page_text: Improvements in Haymakers.
I, EDWARD CHRISTOPHER BLACKSTONE, of Rutland Iron Works, Stamford, in the
County of Lincoln, Agricultural Implement Maker, 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 relates more particularly to improvements in the construction of the
haymaker described in the specification of a patent granted to me and bearing date
the 6th of March 1884, No. 4485, but it is also applicable to haymakers of the ordinary.
or any construction.
In the patent above referred to, the tine-bars, instead of being set parallel to the main
axle of the machine, as is usual, are set at an angle thereto, for the purpose as fully
explained in the complete specification of the said patent.
By this mode of construction it is impossible to so arrange the tine bars that they
shall rock or give way when a tooth comes into contact with an obstruction, as in the
ordinary construction of haymakers, and it has therefore been rendered necessary to
secure cach tooth or tine separately to the bars by an elastic connection, in order that
each tooth may give sufficiently to allow it to pass the obstruction; and the invention
consists in a novel construction or arrangement of spring holder or flexible connection,
whereby the teeth or tines may be secured to the time bars.
In the accompanying drawing:
Fig. 1 is a plan view of the spring holder as applied to a tine bar of the before
mentioned construction.
Fig. 2 is a back view of the tine bar and the holder.
Fig. 3 is a side view, with the tine bar in section; and
Fig. 4 is a plan view of the holder applied to a straight tine bar.
A is the tine bar, which will by preference be formed of angle iron as shown.
The holder consists of a pair of castings B, C; the casting B being placed outside
the tine bar, and the casting C inside. Each of these castings is formed with a lug or
ear B and C, by which it is bolted or otherwise secured to the tine bar. The outer
face of each casting is so arranged that it will be at right angles to the line of
draught, to allow for which, the inner face of each casting will be inclined as shown at
Fig. 1. By this means the teeth or tines will be set, and will be moved in the direction
of the line of draught, and thus, side strain on the teeth will be avoided.
The casting B is formed with a vertical groove a therein, in which the tine head is
to rest, and with a slot or recess at right angles to the groove to receive the
retaining device (see fig. 1). It is further provided at back with shoulders 1, 2,
which fit above and below the tine bar and prevent the casting from twisting.
The casting is formed with a central hole to receive the stem of the retaining
device.
D is the retaining device, which may consist of a hook having a threaded stem to
receive a nut D-The stem of this hook, which projects beyond the casting C when

page_text: placed in position, receives a spring D², which can be more or less compressed, as
desired, by screwing up the nut D₁ on the stem.
C
The teeth or tines E are formed with heads of the shape shown in Fig. 1" of the
drawing, that is to say, the head has two bearing parts cc¹ on one edge, and a notch
or recess d in the other edge, to receive, when in position, the hook or retaining
device D.
To secure the hook D in position, I place the head of the tine in the vertical groove,
the bearing parts e c' resting on the bottom of the groove, the notch or recess being
in line with the cross slot -I then insert the stem of the hook between the tine
head and the side of the casting B, and push it through the hole in the casting C,
bringing the hook portion round the tine. I next place the spring D2 on the stem,
and screw on the nut D', by which means the tine will be elastically secured to the
tine bar.
The tine in its normal state will be in the drawn position, Fig. 3, but when the
tine meets an obstruction, it will be caused to assume the dotted position y, Fig. 3.-
In this position the hook will be drawn outwards, and the spring further compressed.-
The leverage is exerted by the obstruction, the part forming the bearing or fulcrum.
The notch or recess in the tine head into which the hook enters, will prevent the
tine being drawn out of the hook during this action, and the spring will pull the tinc
back into its normal position as soon as it is released from, or has passed, the
obstruction.
The tine will also be free to move in the reverse direction (see the dotted line,
Fig. 3), the fulcrum in this case being the part c¹.
In applying the spring holler to a straight tine bar (see Fig. 4), the casting C will
be dispensed with, and the two faces of the casting B will be parallel.-The mode of
securing the casting B to the tine bar, and the mode of securing the time to the bar,
will be the same as in the former instance. The casting C may also be dispensed with
when using what I may call the spiral tine bar, as the bar in this case may be formed
with steps, as shown in the diagram Fig. 1, which will give a surface for the holder
at right angles to the line of draught. The mode of securing the tines to the tine bar,
as above described, while being simple and economical to manufacture, is extremely
effective, and of great strength, and allows for the ready replacement of a broken tine.
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 :-
The elastic connection or spring holder constructed substantially as herein shown
and described, for securing the teeth or tines to the tine bar as set forth.
Dated this 8th day of Nawal 1007
NEWTON & SON,
Agents for the Applicant.