the last type has a groove running down the center line of the tongue, which gives it a strongly hissing quality. the retroflex sounds, however, have a flat or concave shape, with no associated palatalization, and no groove running down the tongue. the term 'retroflex', in fact, literally means 'bent back' concave , although consonants with a .
oriented strand board is manufactured in wide mats from cross-oriented layers of thin, rectangular wooden strips compressed and bonded together with wax and synthetic resin adhesives 95% wood, 5% wax and resin . citation needed the adhesive resins types used include: urea-formaldehyde osb type 1, non-structural,.
andy manson is a custom guitar maker .for almost five decades manson has been hand crafting guitars, mandolins and multi-necked instruments. over the years manson has achieved a reputation as one of england's finest luthiers and one of the world's finest makers of flat-top acoustic guitars, and his influence can be seen in many other makers' work including hugh's and brook guitars and other .
a cement board is a combination of cement and reinforcing fibers formed into 3 by 5 feet 91 by 152 cm sheets, 1 ⁄ 4 to 1 ⁄ 2 inch 6.4 to 12.7 mm thick that are typically used as a tile backing board. cement board can be nailed or screwed to wood or steel studs to create a substrate for vertical tile and attached horizontally to plywood for tile floors, kitchen counters and backsplashes.
the pressing cycle operates in stages, with the mat thickness being first compressed to around 1.5× the finished board thickness, then compressed further in stages and held for a short period. this gives a board profile with zones of increased density, thus mechanical strength, near the two faces of the board and a less dense core.
cladding is the application of one material over another to provide a skin or layer. in construction, cladding is used to provide a degree of thermal insulation and weather resistance, and to improve the appearance of buildings. cladding can be made of any of a wide range of materials including wood, metal, brick, vinyl, and composite materials that can include aluminium, wood, blends of .
a finger joint, also known as a comb joint, is a woodworking joint made by cutting a set of complementary, interlocking profiles in two pieces of wood, which are then glued. the cross-section of the joint resembles the interlocking of fingers between two hands, hence the name 'finger joint'.
a dowel is a cylindrical rod, usually made from wood, plastic, or metal. in its original manufactured form, a dowel is called a dowel rod. dowel rods are often cut into short lengths called dowel pins.
a curb bit works on several parts of a horse's head and mouth. the bit mouthpiece acts on the bars, tongue and roof of the mouth. the shanks add leverage and place pressure on the poll via the crownpiece of the bridle, to the chin groove via the curb chain, and, especially with a 'loose jaw' shank, may act on the sides of the mouth and jaw.
a coated abrasive is an abrasive grain bonded to a flexible substrate using adhesives. common substrates are paper, cloth, vulcanized fiber, and plastic films and come in grit sizes range from very coarse 2 mm to ultrafine submicrometre .the international standard for coated abrasives is iso 6344.. sandpaper and emery cloth are coated abrasives for hand use, usually non-precision.
another method was to make a much deeper mortise in the top plate. in this case, each slab was lifted up into the deep top groove and then dropped into the bottom one. a third method was to nail planks either side of the wall plates to form a channel to hold the slabs, instead of mortising.
some dowel plates solve the problem by cutting a groove in the side of the dowel as it is forced through; this is done by a groove screw, a pointed screw intruding from the side into the dowel cutting opening. some dowel pins are fluted with multiple parallel grooves along their length to serve the same purpose.
marking out or layout means the process of transferring a design or pattern to a workpiece, as the first step in the manufacturing process. it is performed in many industries or hobbies although in the repetition industries the machine's initial setup is designed to remove the need to mark out every individual piece.
joinery is a part of woodworking that involves joining together pieces of wood or lumber, to produce more complex items. some wood joints employ fasteners, bindings, or adhesives, while others use only wood elements. the characteristics of wooden joints - strength, flexibility, toughness, appearance, etc. - derive from the properties of the materials involved and the purpose of the joint.
a butt joint is a technique in which two pieces of material are joined by simply placing their ends together without any special shaping. the name 'butt joint' comes from the way the material is joined together. the butt joint is the simplest joint to make since it merely involves cutting the wood to the appropriate length and butting them together.
laminate flooring is packaged as a number of tongue and groove planks, which can be clicked into one another. sometimes a glue backing is provided for ease of installation. installed laminate floors typically 'float' over the sub-floor on top of a foam/film underlayment, which provides moisture- and sound-reducing properties. a small 1–10 .
a lap joint or overlap joint is a joint in which the members overlap. lap joints can be used to join wood, plastic, or metal. a lap joint may be a full lap or half lap. in a full lap, no material is removed from either of the members that will be joined, resulting in a joint which is the combined thickness of the two members.
a slick is a large chisel, characterized by a wide 2-4 inches, 5–10 cm , heavy blade, and a long, frequently slender, socketed handle.the combined blade and handle can reach two feet 60 cm in length. the blade of a slick is slightly curved lengthwise, and/or the handle socket is cranked upward, such that the handle and socket clear the surface of the work when the edge is touching.
drill bits are the cutting tools of drilling machines.they can be made in any size to order, but standards organizations have defined sets of sizes that are produced routinely by drill bit manufacturers and stocked by distributors.. in the u.s., fractional inch and gauge drill bit sizes are in common use. in nearly all other countries, metric drill bit sizes are most common, and all others are .