A sickle cutting apparatus having a plurality of knife guards and a sickle bar having a plurality of sickle knife blades driven for reciprocating movement relative to the knife guards. The length of the cutting edge of each knife blade from a transverse rearmost cutting line at which a cutting action occurs is increased to a length greater than 2.2 inches; the width at the rear of the ledger surface of each guard is increased to greater than 1.2 inches; and the front edge of the blade is formed with an apex to shed crop material to one or other side of the apex.

A first connecting portion (31) and a second connecting portion (33) slide over a first guide link (17) and a second guide link (19), respectively, when an operation point (OP) of a reciprocating linear motion mechanism (38) moves from an initiating position to a terminating position. A second acute angle (θ2) formed between the second guide link (19) and a supporting surface (15) is greater than a first acute angle (θ1) formed between the first guide link (17) and the supporting surface (15).

A first connecting portion (31) and a second connecting portion (33) slide over a first guide link (17) and a second guide link (19), respectively, when an operation point (OP) of a reciprocating linear motion mechanism (38) moves from an initiating position to a terminating position. A second acute angle (θ2) formed between the second guide link (19) and a supporting surface (15) is greater than a first acute angle (θ1) formed between the first guide link (17) and the supporting surface (15).

In a preferred embodiment, the apparatus comprises: (1) a track with specifically designed conveyor blades for cutting; (2) a motor for conveying the conveyor blades over each other; (3) a tumble blade to gently move or tumble the flowers over the conveyor blade; and, (4) trimmed flower excavation chute for collecting trimmed buds.

A pipe cutting machine, which includes a hole-type movable cutting die (6b), which is driven by a drive lever (7), by means of which circular movements with a continuously variable stroke (h) can be performed, an eccentrically shaped crank pin bearing (26) in an outer shaft (18), in which a crank pin (11), which is arranged eccentrically on a crank pin drive (23), is movably supported in relation to the outer shaft (18), the crank pin (11) being in operative connection with the drive lever (7).

In a preferred embodiment, the apparatus comprises: (1) a track with specifically designed conveyor blades for cutting; (2) a motor for conveying the conveyor blades over each other; (3) a tumble blade to gently move or tumble the flowers over the conveyor blade; and, (4) trimmed flower excavation chute for collecting trimmed buds.

A helicoidal blade system is presented having an armature to facilitate bending of metal stock to form helicoidal blades. In one or more embodiments, the armature has an exterior surface that is generally conical in shape and includes a guide structure and an engagement track. The helicoidal blade system also includes drive coupler and motor that are operably coupled together. The drive coupler is configured to engage the engagement track of the conical armature and rotate the conical armature when the motor is operated. A blade metal feed apparatus is configured to feed the metal stock into the helical shaped guide structure as the conical armature is rotated. As the conical armature is rotated, the metal stock is bent around the armature within the helical shaped guide structure to form one or more helicoidal blades.

Disclosed is a tire building apparatus and a method for joining or cutting tire components. The tire building apparatus includes a rocking member that is movable in a rocking plane in a rocking motion along a rocking line, a translation guide extending parallel to the rocking line and a carriage that is displaceable along the translation guide, wherein the rocking member has a convex edge that defines a minor arc of a circle and extends up to a rotation center, wherein the rocking member is supported by the carriage at the rotation center and is angularly displaceable with respect to the carriage about a rotation axis extending through the rotation center.

A first connecting portion (31) and a second connecting portion (33) slide over a first guide link (17) and a second guide link (19), respectively, when an operation point (OP) of a reciprocating linear motion mechanism (38) moves from an initiating position to a terminating position. A second acute angle (2) formed between the second guide link (19) and a supporting surface (15) is greater than a first acute angle (1) formed between the first guide link (17) and the supporting surface (15).

A first connecting portion (31) and a second connecting portion (33) slide over a first guide link (17) and a second guide link (19), respectively, when an operation point (OP) of a reciprocating linear motion mechanism (38) moves from an initiating position to a terminating position. A second acute angle (2) formed between the second guide link (19) and a supporting surface (15) is greater than a first acute angle (1) formed between the first guide link (17) and the supporting surface (15).