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Shoring is used on board when damage has been caused to a vessel's integrity, and to hold leak-stopping devices in place to reduce or stop incoming water. Generally consists of timber 100 mm x 100 mm and used in conjunction with wedges, to further jam shoring in place, pad pieces to spread the load and dogs to hold it together. Also used on ...
A dog crate, dog cage, or kennel is a metal, wire, plastic, or fabric enclosure with a door in which a dog may be kept for security or transportation. Dog crates are designed to replicate a dog's natural den and as such can provide them with a place of refuge at home or when traveling to new surroundings. Other common reasons for using a dog ...
Rusted cut spikes (scale in inches) Dog spike. A rail spike (also known as a cut spike or crampon) is a large nail with an offset head that is used to secure rails and base plates to railroad ties (sleepers) in the track. Robert Livingston Stevens is credited with the invention of the rail spike, [6] the first recorded use of which was in 1832. [7]
A dog in a wire crate strapped into a car for safe traveling. Crate training is the process of training a pet to tolerate confinement in a dog crate or cage.Crate advocates often claim that dogs are "den-dwelling" animals and that a crate can become a "den" substitute and a familiar and safe location for the pet.
This word usage is a metaphor derived from the idea of a dog (animal) biting and holding on, the "dog" name derived from the basic idea of how a dog jaw locks on, by the movement of the jaw, or by the presence of many teeth. In engineering the "dog" device has some special engineering work when making it – it is not a simple part to make as ...
The full crib type has each layer filled with timbers. Each point of contact carries a maximum load depending on the size and species of the timbers. [1] A triangle or A' crib is similar to the box crib, except it resembles a triangular prism instead of rectangular. [citation needed] A parallelogram crib [2] resembles a diamond prism.
To bed a stone using a lewis, the stone is placed on dunnage laid flat with enough clearance for a mortar bed to be placed beneath it. The safety straps are removed, the stone is lifted using the lewis alone, and the dunnage removed with fingers clear. The stone is then lowered onto the mortar bed, and positioned with sharp taps from a rubber ...
An audible tone from the wedges changes to a 'ringing sound' when the wedges are tight. Between each series of strikes, a pause of several minutes allows the stone to react to the pressure. Eventually a crack appears along the line that was scored on the surface and the stone splits apart.