Patent GB-191116848-A (GB)
Title: Improvements in Hay Making Machinery.
Inventor: MAW PERCIVAL TRENTHAM
IPC: A01D78/00
Filed: 1911-07-22
Granted: 1912-06-20
Abstract: 16,848. Maw, P. T. July 22. [Cognate Application, 18,930/11.] Haymaking.-A side-delivery hay-rake, of the kind having two rotary disks connected together by oblique coupling-rods which carry the rake tines, is provided with swath - turning forks mounted at each end of the rakes, and the rakes can be put out of operation when employing the swath-turners, and these may be lifted when the rakes are in use. The forks may comprise oblique rods H, Fig. 2, with tines t, mounted either rigidly on the pin e<1>, which is fixed to the rake E and turns in the disk D, or between the rake E and the disk D, Fig. 3, on a sleeve F attached to the rake and turning on the pin d fixed to the disk. The rakes E pass through blocks which slide vertically in guides f and are secured in any position by pins so that the tines may be raised to any height or put out of action. Alternatively, the rakes may turn in the blocks to invert the tines. In this form, the rake may have two rods E, E', Fig. 6, the lower E<1> of which carries the tines and can turn in supports g to bring them into contact with the upper rod E. Pins g<5> and loops g' are employed to hold the rakes in either position. The rake rod may be made in sections which are pivoted to turn in the plane of the rake. In another form, the lower rod E<1> is provided with I-shaped projections sliding in guides attached to the rod E and secured at any height by a pin. The tines may be turned up separately, and in this case a few tines may be left in action at each end of the rake to assist the action of the swathturner. The rod N is attached at the front to t h e frame, which has a vertically adjustable wheel, and at the rear to a sleeve n<2> on the main axle B. The disk D is mounted on a sleeve n<1> on the rod N, with the driving-gear c<10>. The tines t are removably fixed to the rake by bending the upper end k<3> at rightangles, Fig. 9, inserting it in the rod E, and clamping by a rod k<1>. Instead of being attached directly to the rod E, the tines may be carried by oblique cross-bars e, Fig. 3, arranged either at the centre only or all along the coupling-rods E. The rod N is in this case dispensed with or bent to a zigzag form. When driven in the reverse direction, the hay-rakes may be used for tedding. The reversing-gear comprises two bevel-wheels c<1>, c<2> mounted on a sliding sleeve c<7>, which engages clutches c<8> on a countershaft U. The machine may be driven at a lower speed when used as a swath-turner. When rods H, Figs. 2 and 3, are employed, they are so arranged that the line joining corresponding ends of the two rods at opposite ends of the same rake, is at an angle to the rake. According to the Provisional Specification 16,848/11, the rods H may be made adjustable so that they can be placed in line with or at any angle to the rods E, by means of a series of slots or a guide-plate. The same Provisional Specification also states that three swaths may be turned simultaneously, by leaving tines at suitable points on the rods E, when the intermediate tines are put out of action. Specifications 11,418/05, 812/08, 16,538/11, the Cognate Provisional Specification 16,772/11, and 18,728/11 are referred to.