Patent GB-191423543-A (GB)
Title: Improvements in Haymaking Machinery.
Inventor: NICHOLSON ARTHUR CLIVE
IPC: A01D78/00
Filed: 1914-12-04
Granted: 1915-12-02
Abstract: 23,543. Nicholson, A. C. Dec. 4. Haymaking; r a k e s, horse.-A machine for collecting, turning, and raking hay comprises rotary eccentric disks or s p i d e r s connected by coupling-rods on which are mounted collecting- rakes adapted to be detached or turned up out of the way, reversible swath-turning mechanism comprising forks so controlled as to have a similar feathering action for both directions of rotation, and a light drag rake mounted behind the collecting and turning mechanism. The swathturning mechanism may be of the kind described in Specification 18,812/09. The spiders h, h<1> are carried by a frame c, which is provided with two rear wheels b and an adjustable front castor wheel d. The spiders preferably consist of round steel arms cast into central bosses, the ends of the arms being bent as shown and provided with sleeves l fastened to coupling-bars m. The spiders are driven from the axle a by reversible bevel and spur gearing. Cranks are mounted on the spindles i, i<1> of the spiders so that the crankpins o<1> are above the s p i n d l e s and project parallel to and in the same direction as the bent ends of the spider arms. Swath - turning tines r, Fig. 3, are pivoted on the sleeves l and connected by compound spring links p, p<1> to the crank - pin o', so as to receive a feathering motion. They are nearly vertical when in their lowest position. When the direction of rotation is reversed, the links p, p<1> at their lowest position telescope against the action of the springs p<2> and automatically pass into the position indicated in dotted lines. The coupling- bars m are of angle section and have sheet-iron extensions m<1>, Fig. 7. The rake tines s may be attached to tubular bars t carried in bearings fastened to the bars m by bolts having square heads t<3>. The tines may be turned up out of the way by moving the tubes t longitudinally against the action of springs and then turning them through 180 degrees. Clip-pieces t<4> on the tube t are adapted to embrace the bolt heads t<3> to lock the tines in operative or inoperative position. Fig. 9 shows a flat rake-bar u adapted to be fixed with the tines in operative or inoperative position by means of a bolt w<1> and a clip-piece w provided with sockets above and below the bar m to receive the wedge-shaped end of the bar u. In another arrangement, flat tine-bars are simply detachably bolted to the bars m. A vertical guard g<1>, Fig. 2, may be fixed between the spiders h, h', and disk guards in front of the swath-turning forks. A stripper board g' may be mounted in front of the bars m, the front end being provided with a hinged flap g<3> or with spring tines. The drag rake comprises spring tines s<1> threaded in pairs on a rod m<1>, with springs between them. The rod m<1> is mounted in bearings on a frame-bar c', and the tines are provided with loops s<2> through which passes a rod m' carried by brackets m<4> on the rod m<1>. The rod m<3> is connected by links f<1> to a hand-lever l<1> by which the rake may be raised and lowered.