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Self-centering three-jaw chuck and key with one jaw removed and inverted showing the teeth that engage in the scroll plate. The scroll plate is rotated within the chuck body by the key, the scroll engages the teeth on the underside of the jaws which moves the three jaws in unison, to tighten or release the workpiece.
A newer form of tail vise does away with the need of a frame. It uses steel plates for its structure - one steel plate with the nut is mounted on the side of the bench, two others are built into a sliding jaw along with the bench screw. This is a robust design and it's easier to install and adjust than the older style.
This metal device featured a plate that sat below the victim's jaw, which was connected by a frame to the head cap. As the torturer slowly twisted the handle, the gap between the head cap and plate decreased, crushing the skull, including the teeth, mandible and facial bones, and ultimately inducing death. Even if the torturer stopped before ...
A bench vise, B machine vise, C hand vise. A vise or vice (British English) is a mechanical apparatus used to secure an object to allow work to be performed on it.Vises have two parallel jaws, one fixed and the other movable, threaded in and out by a screw and lever.
The plates were expendable, so it was not unusual as shown in both photos for a machinist to drill additional holes in the plates for attaching work that could not otherwise be attached. While the dog plates were usually fairly small regardless of the lathe size, the classic face plate is usually matched to the maximum diameter that the lathe ...
The most common use is to support work when it is in a vise or clamped to the machine bed. If a workpiece is too small to be machined in a vise without it being in contact with all three faces of the vice - parallels can be used either side to give clearance from the vise, and to give support from underneath to eliminate the workpiece being ...
Roberto Gerardi (18 October 1919 – 1995) was an Italian cinematographer. Born in Rome , Gerardi began his career as an assistant of Carlo Montuori , then pursued his career as an assistant operator of Anchise Brizzi , with whom he worked in one of the masterpieces of neorealism , Vittorio De Sica 's Shoeshine . [ 1 ]
The pharyngeal jaws of the moray eel (family Muraenidae) possess their own set of teeth. The dentary of the ghost knifefish species Sternarchogiton nattereri (family Apteronotidae) has upper and lower pharyngeal tooth plates bearing 9–11 and 7–9 teeth, respectively.