Abstract: A method of knotting with a clamp adjacent an axis and a two-jaw knotting head rotatable about the axis comprises the steps of first wrapping a strand around an object to be trussed with the strand ends together and gripping and retaining the strand ends together in the clamp with one of the strand end portions passing under the jaws of the knotting head and then upward to the object, the other strand end portion passing over the knotting head between the one end portion and the axis and then downward to the object, and the strand end portions crossing between the knotting head and the object being trussed. Then the knotting head is rotated through less than one full revolution with the jaws closed together to bring the crossing point of the strands onto the jaws and loop the one end portion around the jaws. The jaws are then opened and the head rotated through the balance of the revolution to engage both end portions between the jaws between the clamp and the axis.

Abstract: A knotter for a chain for two yarn ends, e.g. in a spooling frame comprises a beak which is rotatable on a beak shaft and having a blade which can be opened and closed under the control of a slider plate mounted for vertical sliding movement on the front of a knotter housing. Behind this plate a transmission connected to the beak shaft also has a shaft carrying a cam which is rotated when an input shaft of the transmission is additionally displaced. The slider plate has a circular hole or edge which forms the control edge for the control end of the blade.

Abstract: A cam member for knotters has a cam section, on which a cam surface is formed, and a flange section. The cam surface is engaged by a cam follower carried on the movable jaw of the knotter billhook. Fasteners such as bolts extend through the flange section of the cam member into the main frame of the knotter to detachably fasten the cam member to the main frame.

Abstract: A knotting device for a baling machine has a pivotal knotting element having a lower jaw and an upper jaw that are pivoted together and have separable tips. The lower jaw has a lower side formed with a pair of parallel and downwardly projecting ridges defining a downwardly open groove extending to the respective tip. Thus when a loop of a tie is tight around the jaws it spans this groove. It also has a pair of lateral sides each formed with a longitudinal ridge of cross section decreasing toward the respective tip. A stripping element is displaceable along the sides of the lower jaw by an appropriate actuator to push a loop from the jaws. Once the loop is formed and the two strands are gripped between the upper and lower jaws it will be stripped accurately from the knotter no matter how small it is, since it will only engage at the ridges.

Abstract: A knotter for a baling machine has a pivotal lower jaw and an upper jaw pivotal on the upper jaw about a knotter axis extending transverse to the jaws. The upper jaw has a tip remote from the axis, a lower edge lying between the tip and the axis and forming with the lower jaw a tie-holding opening, a first lateral flank directed in one axial direction and lying mainly in a plane perpendicular to the axis, and a second lateral flank directed in the opposite axial direction and formed with a groove open in the opposite direction and terminating at the lower side at the opening. The upper jaw has at its tip a downwardly extending point engageable with the lower jaw. In addition it is formed with an upwardly open groove in which the tip is receivable. Since the two tie ends lie recessed in the groove and the opposite side of the upper jaw is smooth, the tie can slide off the upper jaw relatively easily. Even relatively thick or stiff ties can be slipped off the knotter with ease.

Abstract: A knotter apparatus is improved by providing a frame supporting first and second rotatable shafts. A plurality of flanges are mounted on the first shaft and a billhook is angularly mounted on the second shaft. A plurality of twine holder fingers are pivotally supported by the frame and resiliently urged relative to the flanges. The second shaft is operable for intermittently driving the first shaft.