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Handheld glass breaker with a built-in seatbelt cutter.. A glass breaker is a hand tool designed to break through a window glass in an emergency. It is a common safety device found in vehicles to aid in the emergency extrication of occupants from a vehicle, as well as in some buildings.
A hydraulic spreader in use, seen here widening a window on the door of a Volkswagen Golf Mk2 to allow fire crews access into the vehicle. The Hurst Rescue Tool was invented by George Hurst, circa 1961, after he viewed a stock car race accident in which it took workers over an hour to remove an injured driver from his car.
A glass cutter may use a diamond to create the split, but more commonly a small cutting wheel made of hardened steel or tungsten carbide 4–6 mm in diameter with a V-shaped profile called a "hone angle" is used. The greater the hone angle of the wheel, the sharper the angle of the V and the thicker the piece of glass it is designed to cut.
"Pre sense" autonomous emergency braking system uses twin radar and monocular camera sensors [22] and was introduced in 2010 on the 2011 Audi A8. [23] "Pre sense plus" works in four phases. The system first provides warning of an impending accident, activating hazard warning lights, closing windows and sunroof, and pre-tensioning front seat belts.
The WSPS developed by Bristol, which is typical of most cable cutters today, consists of a roof-mounted cutter, a lower cutter fitted to the fuselage, [b] and a deflector fitted to the middle of the windshield to guide the cable into the cutters. [1]: 9 [7] Sometimes a windshield wiper protector frame is used to stop the cables from catching on ...
USCGC Point Glass (WPB-82336) was an 82-foot (25 m) Point class cutter constructed at the Coast Guard Yard at Curtis Bay, Maryland in 1962 for use as a law enforcement and search and rescue patrol boat.
The ideal gap size varies by location, but on average it ranges from 15-18 mm thick, giving a final assembly size of 23-26 mm assuming a typical glazing thickness of 4 mm. [9] A double-paned window with air in the gap has an R-value of 2.1, which is much better than the 0.9 that a single pane of glass yields. A triple-paned window, which is not ...
[6] [20] [28] This will allow the PSCs to break ice with a thickness between 6 and 8 feet (1.8 and 2.4 m). [4] Designed according to the International Association of Classification Societies (IACS) Unified Requirements for Polar Class Ships , the PSCs will be strengthened to Polar Class 2 which is intended for vessels operating year-round in ...