NEW PLOUGHS FOR AGRIMOTORS.
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Improvements Recently Made to Well-known Implements.
IT IS not surprising that many attempts have been made recently to improve upon agrimotor ploughs in such a way as to make them efficient, thus enabling the farmer to do all ploughing operations, from commencement to -finish, with the agrimotor. . One of the improvements in recently made tractorploughs is the strength of design in 'build, which is intended to protect the plough against rough usage necessarily attendant upon tractor ploughs. . This is one of the features of the Howard threefurrow self-lift tractor-plough that was awarded one of the Royal Agricultural Society's silver medals at the Royal Show: The plough is set for ploughing.up to 11 ins, wide and 10 inn deep, and chilled digging bodies are interchangeable with the general-purpose
bodies, or the plough can be fitted with Colonialpattern concave breasts and shares.
The. power-lift is (extremely simple and quick in operation, being actuated by a cord from the driver's. seat of the trader. Separate levers are supplied to the furrow and land wheels sothat there is ready adjustment for the depth._ An improved type of drawbar is fitted whereby the position of the drawbar can readily he adjusted by means of a lever.
Improvements have recently been effected in several well-known ploughs. Reference might be made to a new plough made by the Saunderson Co., of Bedford. This appears to be an attempt to bring the tractor and the tractor-plaugh up to the same standard of efficiency in .dealing with every kind of ploughing, as in the case. of the horse plough.
The fact that the plough is capable -of immediate adjustment to two, three, or four furrows is perhaps a detail, but, at the same time, it is important. The standard plough_ of this type is made to turn three furrows up to10 ins. wide and 8 ins, deep, and this size plough can easily be converted to either a two-furrow or a three-furrow plough. For this purpose the frame has been specially designed and made adaptable.
An important detail in tho design of the Saunderson plough is the device for straightening the furrow by means of the swinging drawbar. This means that the plough will deal effectively with all kinds of land, even where the fields are not quite on the square. It will start and finish a furrow properly, straighten a crooked furrow, and easily plough out piked land. The self-lift device has been so designed that 311 the furrows rise from the ground at the same point. That is to say, the rear furrow is not lifted from the ploughing until it has reached the same point where the first furrow rose. This is a. distinct advan: tage, as itbecomes possible to have all the furrow ends level on the headland.
The furrow-straightening device consists of a square drawbar spindle, turning in brackets, and bolted to the frame on which are fixed, two levers at right-angles to each other, and on the arms of these levers are pivoted knuckle joints, to each of the latter are connected the drawbar irons, these irons being crossed and bolted together to form one eye, which is directly connected to the tractor drawpin. By means of the lever which is within reach of the tractor driver, and fixed to the drawbar spindle and quadrant, the eye can be swung either to the right or left of the centre of the plough, thereby altering the point of traction of the plough relative to the engine, and so causing the plough to correct any irregularity in the furrow.
The rear of the plough is also connected to the selfdriven lifting gear by means of a connecting rod and lever, the lever being connected to the frame by a link, the frame sliding up and down on the rear axle.
After all, the Saunderson tractor-plough has many years of practical experience behind it. The company have been manufacturing and experimenting with paraffin tractors for the pa-st 25 years, and if the opportunities afforded have not enabled them to bring out a plough that can de all that is claimed for this one, then it is doubtful whether the task is capable of accomplishment by anyone.
Both Howards and Sa,undersons can be trusted to put their best into a proposition of this kind. AGRIMOT.