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Tongue and groove joints allow two flat pieces to be joined strongly together to make a single flat surface. Before plywood became common, tongue and groove boards were also used for sheathing buildings and to construct concrete formwork. A strong joint, the tongue and groove joint is widely used for re-entrant angles
Tongue-and-groove pliers are commonly used for turning and holding nuts and bolts, gripping irregularly shaped objects, and clamping materials. It is also possible to rotate objects while keeping them in one position.
A through groove (left) and a stopped groove. In joinery, a groove is a slot or trench cut into a member which runs parallel to the grain. A groove is thus differentiated from a dado, which runs across the grain. [1] Grooves are used for a range of purposes in cabinet making and other woodworking fields.
Slip gate pier with unusual groove shapes. Slip gate pier with notches for gate spars. Quite apart from the farmers own needs for movement of stock, machines and people between fields and access from roads, lanes etc. it was also a requirement for those using rights of way that gates and stiles whilst being stock proof do not "..present troublesome hindrances to passage." [7] The width of the ...
Stoplogs are typically used in structures where the removal, installation, and replacement of the logs is expected infrequently. When larger flows of water are passing through a stoplog gate, it can be difficult to remove or place individuals logs. Larger logs often require multiple people to position and lift the logs.
This canal can be round, oval or an arc in order to receive another component such as a boss, a tongue or a gasket. It can also be on the circumference of a dowel, a bolt, an axle or on the outside or inside of a tube or pipe etc. This canal may receive a circlip, an o-ring, or a gasket.
Cam and groove fittings are commonly available in several materials, including stainless steel, aluminum, brass, and polypropylene. [2] Because there are no threads to become fouled, cam and groove couplings are popular in moderately dirty environments, such as septic tank pump trucks and chemical or fuel tanker trucks.
If inflow to the reservoir exceeds the gate's capacity, an artificial channel called an auxiliary or emergency spillway will convey water. Often, that is intentionally blocked by a fuse plug . If present, the fuse plug is designed to wash out in case of a large flood greater than the discharge capacity of the spillway gates.