Abstract: Tobacco leaf stem is separated into large-stem and small-stem fractions, the large-stem fraction is cut in a stem cutter and the small-stem fraction is shredded in a mill, whereafter the cut and shredded materials are mixed.

Abstract: A prefabricated door assembly which includes a panel, a pair of jambs and two combined headers and thresholds. The jambs and combined headers and thresholds form a rectangular frame into which is fitted the door panel. The panel is pivotally hinged to one of the jambs. Each combined headers and threshold is adapted to be mounted either upon a foundation or under an overhead support, depending upon the vertical orientation of the panel and location of the door hinge.

Abstract: A liquid-spraying device, particularly for applying an additive to a moving bed of smoking material. The device includes a body and an elongate narrow unshrouded tubular spray tip carried by the body. First and second ducts are in the body through which the liquid and an atomizing medium respectively can be supplied to the tip. A third duct is provided for supplying a cleaning medium such as air. A jet structure is located remotely from the discharge end of the spray tip, is connected to the third duct and is arranged to direct the cleaning medium along and around the outside of the freely extending tip to the discharge end thereof. The spray tip may be mounted on and extend from a nozzle head connected to the body. The jet structure is provided in the nozzle head, for example, in the form of a plurality of jet orifices equi-angularly spaced around the spray tip. The spray tip and jet can be used in a method of applying a liquid additive to a moving bed of smoking material.

Abstract: A smoking article comprises a rod of smoking material, wrapped in a wrapper, in which rod the packing density of the smoking material varies continuously along at least a major portion of the overall length of the rod, but is constant across any section, within said portion, in a plane perpendicular to the longitudinal axis. The smoking material may be of homogeneous constitution throughout the rod. Preferably the density decreases continuously along the said portion of the rod in the direction away from the end of the rod to be lit, from which end the said portion may extend to substantially the other end of the rod. There may be between a 5% and a 40% weight difference between the more dense half of the length of the rod and the less dense half thereof. The density at the less dense end of the rod may be in the range of 170 to 240 mg cm.sup.-3 and that at the denser end in the range of 290 to 350 mg cm.sup.-3.

Abstract: A prefabricated door assembly which includes a panel, a pair of jambs and two combined header and thresholds. The jambs and combined header and thresholds form a rectangular frame into which is fitted the door panel. The panel is pivotally hinged to one of the jambs. Each combined header and threshold is adapted to be mounted either upon a foundation or under an overhead support, depending upon the vertical orientation of the panel and location of the door hinge.

Abstract: A sectionalized door for a barn or similar structure including a plurality of separable panels positioned side by side and fitted together by tongue and groove connections. Top and bottom rails extend across the upper and lower marginal edges respectively of the connected panels.

Abstract: A prefabricated door assembly which includes a panel, a pair of jambs and two combined header and thresholds. The jambs and combined header and thresholds form a rectangular frame into which is fitted the door panel. The panel is pivotally hinged to one of the jambs. Each combined header and threshold is adapted to be mounted either upon a foundation or under an overhead support, depending upon the vertical orientation of the panel and location of the door hinge.

Abstract: A barn door which includes a pair of vertical side frame members and horizontal top and bottom frame members joined at their respective end portions to define a four-sided opening between the frame members. A girt is supported by and extends between the side frame members. Siding is applied over one side of the girt to cover the opening between the frame members.