Improvements in or relating to Agricultural Drills.
Year: 1889

page_text: Date of Application, 23rd July, 1889
Complete Specification Left, 22nd Apr., 1890-Accepted, 28th June, 1890
PROVISIONAL SPECIFICATION.
Improvements in or relating to Agricultural Drills.
I THOMAS CHARLES SARGEANT Cattle Market Road Northampton Engineer do
hereby declare the nature of this invention to be as follows:-
-
My invention has reference to corn drills of that class having their front portion
attached to and carried by a fore carriage and my invention consists in steering,
swivelling and controlling the said fore carriage by means of suitable gearing
(preferably bevil wheel gearing) being worked by a handwheel or crank handle
placed in rear of the main travelling wheels of the drill and so arranged that on
turning the said handwheel to the right or left the fore carriage is swivelled or steered
as desired.
1 1000
COMPLETE SPECIFICATION.
Improvements in or relating to Agricultural Drills.
1, THOMAS CHARLES SARGEANT, Cattle Market Road, Northampton, 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 has reference to that type of drill, which has its front portion
attached to, and carried by a forecarriage A. and consists in the mode of steering,
swivelling, or manipulating the said forecarriage A. which I accomplish in the
following manner, namely:
The axle B of the forecarriage A is jointed to a vertical shaft C to which is keyed
or fixed a geared segment D, the said segment D engaging into suitable gearing on
the horizontal shaft E, so arranged that the said shaft is carried to the rear of the
trailing wheel axle G, or geared with other shafts F, F, which shafts F F. sball
terminate in the rear of the trailing axle G. the ends of the shaft E, or the shafts F. F.
being fitted with a crank or handwheel H. Now it will be seen that on turning the
said handwheel H. to the right or left, the front or forecarriage A will be compelled
to swivel or turn upon the vertical shaft C. and that the wheels a, a, of the fore-
carriage A will pivot on the vertical shaft C. as shown by the dotted lines a¹, a¹
The drawbar K attached to the forecarriage A is so arranged that projections or
wings b, b, come in contact with the geared segment D, forming a limit of rotation
to the said geared segment D, or in other words, when the drawbar K is pulled to the
right or left, the wings or projections b. b. come in contact with the corresponding
ends of the geared segment D, and in so doing assist in bringing round the fore-
carriage A. in turning the drill round. The dotted lines show the draw bar K pulled
to the left, and the wing b, coming in contact with the geared segment D. It pulled
still further, the draw bar K will carry the geared segment D with the forecarriage A.
bodily round on the vertical shaft C.-Fig. 1 plan. Fig. 2 elevation.

page_text: 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. In a drill having a forecarriage A. to control steer or manipulate the drill by
means of a crank or handle H. placed in the rear of the trailing axle G.
2. In a drill having a forecarriage A. a draw bar K, oscillating upon a spindle C
and forming with projections chain or other mechanical device a limit of rotation to
the segment D.
THOS. C. SARGEANT.