Improvements in Horse-rakes.
Year: 1891

page_text: Date of Application, 15th Sept., 1891
Complete Specification Left, 15th July, 1892-Accepted, 27th Aug., 1892
PROVISIONAL SPECIFICATION.
Improvements in Horse-rakes.
1, JOHN HARRISON, of St. Peter's Works, Stamford, in the County of
Lincoln, Engineer, do hereby declare the nature of this invention to be as
follows:
My invention relates to horse-rakes.
According to my invention the teeth of the rake instead of being pivotted in front
of the axle, are pivotted considerably to the rear thereof in a frame pivotted
between brackets upon the axle, and adapted to be operated by manual or foot
power, or automatically.
The teeth, or bars to which the teeth are secured, are provided at their pivotted
ends with projections which are also connected to the said brackets by links.
With this arrangement it follows, that when the tooth carrying frame is operated
to raise the teeth, the latter will be first slowly raised and then quickly, owing to
the different positions of the centres upon which the tooth carrying frame oscillates,
and of the links to which the teeth are connected.
Dated the 15th day of September 1891.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Horse-rakes.
I, JOHN HARRISON, of Lincolnshire Ironworks, Stamford, in the County of
Lincoln, 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 :-
My invention relates to horse-rakes.
According to my invention the teeth of the rake instead of being pivotted in
front of the axle, are pivotted considerably to the rear thereof in a frame pivotted
upon the axle, and adapted to be operated by manual or foot power.
The teeth, or bars to which the teeth are secured, are provided at their pivotted
ends with brackets or projections which are also connected to the said brackets or
some other fixed part of the rake by links.
To enable my invention to be fully understood I will describe the same by
reference to the accompanying drawings, in which :-
Figure 1 is a plan of a horse-rake constructed according to my invention; and,
Figure 2 is a section of the same on the line xx, Figure 1:
Figures 3 and 4 are views similar to Figures 1 and 2 respectively illustrating
a modification of my invention.
Similar letters of reference indicate corresponding parts in the several figures.
a indicates the main axle of the machine, and b, the brackets mounted thereon
and to which the draught shafts c are connected. d, d, d' are bars constituting the
frame pivotted upon the axle a. e, e are the teeth of the rake which, as shewn in
Figure 1, are spring-teeth and are secured to a bar jointed at g, g to the free
ends of the side-bars d, d of the pivotted frame. h, are the small brackets fixed
to the bar fand i, i are the links connecting the outer ends of the said brackets h, h
to the axle-brackets b, b. j is the driver's seat.
With this arrangement it follows that when the bar d' of the pivotted frame is
го

page_text: depressed by the foot of the driver that the teeth will be raised from the position
shewn in full lines in Figure 2 to that indicated by the dotted lines in the said
figure, the movement of the teeth being first slow and then quick.
It is obvious that instead of raising the teeth by the pressure of the foot upon
the bar d' a lever may be connected to the pivotted frame to enable it to be raised
by hand power.
In the modification of my invention shewn in Figures 3 and 4 the arrangement
is substantially the same as that hereinbefore described except that instead of
spring-teeth have shewn rigid teeth. As it is necessary to allow such teeth
a yielding movement to permit of their passing over any inequalities on the
surface of the ground, the said teeth, instead of being fixed to a bar f carried
by the pivotted frame, are independently pivotted upon a bar k secured in a
secondary frame / pivotted to the ends of the side bars d, d of the pivotted
frame first described, a second bar m in the frame serving to support the teeth
in the required position. In this case the brackets /, h extend across the frame 1,
as shewn most clearly in Figure 3. It will thus be seen that during the working
of the rake the teeth are free to move upon the pivot-bar k and that when the
pivotted frame having the bar d' is depressed the frame and the teeth will be
raised, taking the position indicated by the dotted lines in Figure 4.
In the drawings I have shewn the axle a of the rake cranked to permit of
adjusting the height of the teeth relatively to the ground. Any suitable
mechanism such as toothed segments, one of which is fixed to the axle and the
other provided with a hand lever, may be used for adjusting the position of
the axle.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
:-
1. A horse-rake the teeth of which are connected to a bar or frame pivotted
to a frame upon the main axle of the machine and connected by links to the axle
bracket or some other fixed part of the machine, substantially as described.
2. A horse-rake constructed and arranged substantially in the manner herein-
before described and illustrated in Figures 1 and 2 and Figures 3 and 4 of the
accompanying drawings.
Dated this 15th day of July 1892.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.