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The camera featured an Adoxar 45mm f/3,5 lens that would have been respectable on cameras in a much higher price range. The top, bottom and the lens base cover were made from pressed steel of about ½mm thickness. The rest of the chassis and most of the internal parts were made from mould-injected plastic. Metal was only used for parts where ...
The chromium in stainless steel creates a passivation layer on the surface that protects the steel from rusting. In low oxygen situations and/or warm water this passivation layer breaks down and corrosion will set in. Low oxygen will occur in crevasses which stary wet (cracks, welds, shackle threads, keel bolts, etc.) or confined spaces (swivel ...
The channel can be a hot-rolled or a cold-formed steel shape in which a T-shape screw is placed in order to transfer the load to the base material. Headed stud: consist of a steel plate with headed studs welded on (see also threaded rod). Threaded sleeves: consist of a tube with an internal thread which is anchored back into the concrete.
A tie plate, baseplate or sole plate is a steel plate for centering and reinforcing the attachment point on the rail tracks between a flanged T rail and a railroad tie. The tie plate increases bearing area and holds the rail to correct gauge. It is fastened to wooden ties by means of spikes or bolts through holes in the plate.
The Stokes mortar was a simple muzzle-loaded weapon, consisting of a smoothbore metal tube fixed to a base plate (to absorb recoil) with a lightweight bipod mount. When a mortar bomb was dropped into the tube, an impact sensitive primer in the base of the bomb would make contact with a firing pin at the base of the tube and detonate, firing the ...
A surface plate is a solid, flat plate used as the main horizontal reference plane for precision inspection, marking out (layout), and tooling setup. [1]