Disclosed is a splicing method for seamless butted laminated bamboo lumber (LBL), falling within the technical field of LBL. According to the present disclosure, positions needing to be spliced on end faces of bamboo materials are applied with glue adhesive, and butted by tenon-mortise structures, the tenon-mortise structure being at least one of a semicircle, a semi-ellipse, a V-shape and a U-shape. An included angle between a plane at a top of the V-shape and the end face of the bamboo material is greater than 14 when a single V-shape is adopted. According to the present disclosure, by butting the bamboo materials, products with any length, width and thickness can be produced, and the produced products are seamless, which improves the strength and stability of the products.

The invention relates to a bamboo blank, particularly to produce load-bearing structural elements, characterized in that the bamboo blank comprises a plurality of bamboo lamellae arranged parallel to each other and bonded together by an adhesive, wherein the material for the bamboo lamellae originates from a giant bamboo species, the bamboo lamellae are pressed and bonded together by a pressure of 0.05-1.5 N/mm.sup.2, and the bamboo lamellae have a thickness of at least 5 mm. Furthermore, the invention relates to a bamboo rod, a bamboo layer, a laminated timber element, a sandwich element, and a ceiling or wall element. The invention additionally relates to a method for producing a claimed bamboo blank, bamboo rod, bamboo layer, laminated timber beam, cross-laminated timber element, sandwich element, ceiling element, and/or wall element, combination beam, T-beam, I-beam, and ceiling elements with T-beams and/or I-beams.

A side pressure plate and a preparation method, comprising a first layer plate, a second layer plate and a third layer plate, all of which comprise a plurality of square plates, the square plates comprising a cutting surface and a long side surface, the cutting surfaces of the plurality of square plates being bonded to each other to form the second layer plate, and the long side surfaces of the plurality of square plates being bonded to each other to form the first layer plate and the third layer plate, the three layers are bonded and pressed together to form the side pressure plate. Cutting a number of hollow cylindrical bamboo tubes into multiple bamboo strips paste side pressure to form the first layer of plate, the second layer of plate and the third layer of plate, and finally the three layers of plate bonding.

of mechanically processing a bamboo split which is a segmental and longitudinal part of a bamboo culm, by which method a bamboo strip is produced method providing a bamboo split which has an inner skin layer and outer skin layer and a central bamboo layer in between; mechanically removing bamboo node diaphragms present on the inner skin layer of the bamboo split; mechanically removing the inner skin layer and outer skin layer from the bamboo split least the part of the inner skin layer adjacent to the central bamboo layer is removed by mechanical abrading, and optionally the complete inner skin layer is removed by mechanical abrading.

of mechanically processing a bamboo split which is a segmental and longitudinal part of a bamboo culm, by which method a bamboo strip is produced method providing a bamboo split which has an inner skin layer and outer skin layer and a central bamboo layer in between; mechanically removing bamboo node diaphragms present on the inner skin layer of the bamboo split; mechanically removing the inner skin layer and outer skin layer from the bamboo split least the part of the inner skin layer adjacent to the central bamboo layer is removed by mechanical abrading, and optionally the complete inner skin layer is removed by mechanical abrading.

Disclosed are interlocking elongate composite bamboo industrial mats having an upper layer with two or more elongate laminated composite bamboo panels, an intermediate layer with a plurality of elongate laminated composite bamboo panels arranged in parallel and perpendicular to the laminated composite bamboo panels in the upper layer, and a bottom layer with a plurality of elongate laminated composite bamboo panels arranged in parallel to the upper layer. The three layers are secured together with fasteners consisting of a bolt, an outward-facing concave washer engaged with the bolt head, and a sleeve nut having an outward-facing washer engaged with the sleeve nut head. The interlocking elongate composite bamboo industrial mats are configured to interlock end-to-end or alternatively, side-to-side. Each of the elongate laminated composite bamboo panels comprises a plurality of kiln-dried glue-dipped elongate asymmetrically fractured bamboo strips compressed into a solid panel devoid of air spaces.

Disclosed are interlocking elongate composite bamboo industrial mats having an upper layer with two or more elongate laminated composite bamboo panels, an intermediate layer with a plurality of elongate laminated composite bamboo panels arranged in parallel and perpendicular to the laminated composite bamboo panels in the upper layer, and a bottom layer with a plurality of elongate laminated composite bamboo panels arranged in parallel to the upper layer. The three layers are secured together with fasteners consisting of a bolt, an outward-facing concave washer engaged with the bolt head, and a sleeve nut having an outward-facing washer engaged with the sleeve nut head. The interlocking elongate composite bamboo industrial mats are configured to interlock end-to-end or alternatively, side-to-side. Each of the elongate laminated composite bamboo panels comprises a plurality of kiln-dried glue-dipped elongate asymmetrically fractured bamboo strips compressed into a solid panel devoid of air spaces.

Disclosed is a method of manufacturing bamboo toothbrush and a toothbrush manufactured thereby. According to the method of manufacturing bamboo toothbrush of a detailed embodiment of the present invention and a toothbrush manufactured by the method, it is possible to improve strength, surface roughness, and moisture resistance of a bamboo and adjust the color of the bamboo using hot pressing. Further, since sanding and polishing and separate coating and drying are not performed, the process time is reduced, whereby the manufacturing cost can be reduced.

Disclosed is a method of manufacturing bamboo toothbrush and a toothbrush manufactured thereby. According to the method of manufacturing bamboo toothbrush of a detailed embodiment of the present invention and a toothbrush manufactured by the method, it is possible to improve strength, surface roughness, and moisture resistance of a bamboo and adjust the color of the bamboo using hot pressing. Further, since sanding and polishing and separate coating and drying are not performed, the process time is reduced, whereby the manufacturing cost can be reduced.

An apparatus and method for its use employ a magnet assembly to securely hold a knife by its blade. Along with a carriage and angle adjustment assembly that set and control the sharpening angle of the knife relative to a sharpening surface, the apparatus provides for sharpening of knives such as double hollow ground reed scraping knives, and bevel reed scraping knives.