Patent GB-189824658-A (GB)
Title: Improvements in Grain Binding Apparatus for Harvesting Machines
Filed: 1898-11-22
Granted: 1899-01-21
Abstract: 24,658. Lake, H. H., [Deering Harvest Co.]. Nov. 22. Sheafing or binding apparatus.-Relates to the binding-apparatus of harvesting-machines in which the knotter is driven by a rocking shaft. In Fig. 3, D represents the main driving-shaft, C the knotter shaft, and L the continuously-running packer shaft. On an extension of the shaft L is mounted a pinion which by means of an intermediate pinion drives the main gear-wheel J. The pinion on the shaft L is provided with a spring clutch dog which normally engages drivers on the packer crank to drive the wheel J. The dog is provided with a lug which is engaged by a projection on the back of the needle to move the dog, against the action of its spring, out of the path of the drivers. The needle E is formed with an extension B<1> beyond its pivot A', which acts as a trip by moving the needle sufficiently to release the spring clutch dog above referred to. In order to adjust the action of the trip, an arm C<1> may be adjustably secured to the extension B<1> against which the grain is packed. The extension B' is connected to the main gear-wheel J by a link J<1>, which is attached by a yielding connection to the extension B', as shown, so as to allow the needle sufficient independent movement. to trip the driving-clutch. The link J<1> is connected to the wheel J in such a position that the speed of the needle is slackened just before and after the tying operation. The compressor N<1> is carried by a lever O<1> mounted on the needle pivot A' and limited in its movement by a stop on the frame. The lever O<1> carries the spring compressor arm operated by a cam on the face of the wheel J to give the requisite movement to the compressor. The lever O<1> is provided with a finger which engages the underside of the needle with the object of ensuring a sufficient movement of the needle to trip the driving-clutch. In case the weight of the incoming grain against the back of the needle should prevent the latter from being properly retracted beneath the binder deck, a lug is provided on the needle to engage some part of the wheel J or its connections and force the needle back to its proper initial position. A spring is arranged to bear against the cam on the wheel J, to prevent backlash and rattling of the parts. A varying tension is placed on the cord E' as follows :-The cord passes between two plates G<2> and H<2> connected together by a weak spring connection K<2>. An additional spring N<2>, pivoted on the shaft L, bears at one end upon the movable plate G<2>, and at the other end is operated to increase the tension on the cord by a cam surface on the hub of the needle E. In order to be able to operate the binding-mechanism independently by hand when desired, a hand-wheel is fixed by special means on the packer shaft, and the packer shaft drive gear is connected to the shaft by a clutch in such a way that the packer shaft may be independently rotated by the hand-wheel. A trap door is provided in the binder deck to afford access to the gearing above described. The knotter shaft C is rocked by cranks and a connecting-rod from the shaft D, and carries the knotter drive wheel H<3>, provided with gear teeth J<3> and delay flanges for operating the pinion N<3> on the knotter bill shaft. In order that the pinion N<3> shall be efficiently thrown into gear with the teeth J<3>, a spring pawl 32 is provided on the wheel E<3>. This pawl rides over a projection on the pinion, when the wheel E<3> is rocked in one direction, but strikes against the said projection and turns the pinion N<3> into efficient gear with the teeth J<3> when the wheel H<3> is rocked in the opposite direction. The cord clamp 78 is adjustably mounted on the knotter frame, and is provided with a notch in which the cord is laid by the needle. A cord holder works in conjunction with the clamp 78, and is mounted on a rock shaft actuated by a cam on the wheel H<3>. The cord knife is carried on the cord holder, which is also formed with a projection which engages a slot in a pivoted knot stripper and actuates it at the required moment. The discharge arms 59 are pivoted by means of spring connections in ends of castings secured respectively on the end of the shaft C and on the wheel H<3>. The parts are so arranged that the arms 59 are held rigid when discharging a sheaf, but fold back against the action of their springs in the reverse movement of the shaft C, as they are carried back over the next sheaf in course of formation.