Improvements in Horse Rakes.
Year: 1893

page_text: Date of Application, 12th June, 1893
Complete Specification Left, 5th Feb., 1894-Accepted, 14th Apr., 1894
PROVISIONAL SPECIFICATION.
Improvements in Horse Rakes.
We, EDWIN ROBERTS and HENRY ROBERTS of the Deanshanger Iron Works,
near Stony Stratford, Bucks, Engineers and Ironfounders, do hereby declare the
nature of this invention to be as follows: :-
Instead of actuating or manipulating what is known in connexion with implements
of this character as "the rocking frame" and that too by a system of levers,
cranks and the like, the usual method previously adopted when adjusting the
distance between the points of the tines or rake and the ground according to the
various seasons and crops our improvement consists in effecting this same object in
the following manner :-
Eccentrics are placed on the main axle upon which the travelling wheels rotate,.
so that the tines or teeth can be adjusted to the greatest accuracy, these eccentrics
being after adjustment kept in a fixed position by means of one or more bolts
passing through a flange formed on the inner side of the eccentric, and by means of
which it is secured to the frame of the implement, when any adjustment of the
rake is necessary, the bolt or bolts already referred to are unscrewed and taken out
of the eccentric the latter turned slightly round on the axle until the hole or holes
in the eccentric correspond with other holes in the frame of the implement, thus
increasing or diminishing, as the case might be, according to the amount and
direction of the movement of the eccentric, the distance between the centre of the
travelling wheels and the ground, by which means the adjustment of the rake itself
is obtained.
Dated this 12th day of June 1893.
JOHN HAYES,
Agent for Applicants.
Improvements in Horse Rakes.
We EDWIN ROBERTS and HENRY ROBERTS, of the Firm of Messrs. E. and
H. Roberts Limited, of the Deanshanger Iron Works, Stoney Stratford in the
County of Northampton, Engineers and Ironfounders do hereby declare the nature
of this invention and in what manner the same is to be performed, to be particu-
larly described and ascertained in and by the following statement :-
Instead of actuating or manipulating what is known in connexion with implements
of this character as "the rocking frame," and that too by a system of levers,
cranks and the like, the usual method previously adopted when adjusting the
distance between the points of the tines or rake and the ground, according to the
various seasons and crops, our improvement consists in effecting this same object in
the following manner :-
Eccentrics are placed on the main axle & upon which the travelling wheels rotate,
so that the tines or teeth can be adjusted to the greatest accuracy these eccentrics
after adjustment are kept in a fixed position by means of one or more bolts passing
through a flange formed on the inner side of the eccentric, and by means of which
it is secured to the frame of the implement; when any adjustment of the rake is
necessary the bolt or bolts already referred to are unscrewed and taken out of the
eccentric, the latter turned slightly round on the axle until the hole or holes in the

page_text: eccentric correspond with other holes in the frame of the implement and thus
increasing or diminishing as the case might be, according to the amount and
direction of the movement of the eccentric, the distance between the centre of the
travelling wheels and the ground, and by the same means raising or lowering the
framework mounted on, and attached to the said eccentrics, and to which framework
the rake is attached, being itself a part of the same.
Another adaptation of the same invention, is to have the eccentrics unsecured by
bolts as in the above described method, and to have the eccentrics always adjustable
& under control whilst the machine is travelling and in operation, such control or
adjustment being easily obtained in any of the usual methods, viz., by a system of
levers, or by gearing; and these means may be applied to either the movement of
the eccentric upon the axle as already set forth, or to the axle itself, in which case
the eccentric would always remain in one and the same position, relatively to the
axle.
In order that my invention which is already of a simple character may be better
understood beg to refer to the annexed drawing in which Fig. 1 represents a
section through the boss or nave of one of the travelling wheels of a horse rake the
machine to which this invention applies.
In this illustration it will be seen that the axle of the machine or implement is
shewn at a, a, the eccentric formed with a flange on one end at b, b, b, b, the section
of the wheel centre with arins or spokes attached thereto being at c, c, c, c, and for
adjustment and locking purposes, when levers or gearing are not resorted to, we
secure the eccentric in position then by means of the bolt and nut d, d, fastening
the same to a portion of the ironwork forming the frame of the implement, in the
drawing this is shewn at e, e, Fig. I the same being rigidly secured to the axle or
the axle to such framework in the usual way by means of a taper key as at f.
Fig. II is simply an end elevation of the axle and eccentric already described
and needs no further detailed description.
From the foregoing description it will be understood that it is not the means by
which we effect the adjustment of the eccentric that our invention consists, but
the application of an eccentric in the manner & for the purpose previously
described and having fully described the same we beg to point out that what we
claim as our invention is.-
The eccentric sleeve placed upon the axle of a horse rake, the same being placed
inside the nave of each travelling wheel and moved or adjusted in the particular
manner already set forth.
Dated this 3rd day of February 1894.
JOHN HAYES,
Agent for Applicants.