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1921: Automatic Vacuum Wiper motor. 1923: Crescent Cleaner. 1927: Visionall® Wiper System. Two blade wiper system (a four blade system was also offered) where the blades wiped directly sideways. 1928: Sleet Wand. Early attempts to fight windshield icing included this use of a rock salt-type product encased in fabric and mounted on a wiper arm.
Another wiper design (Fig. 6) is pantograph-based, used on many commercial vehicles, especially buses with large windscreens. Pantograph wipers feature two arms for each blade, with the blade assembly itself supported on a horizontal bar connecting the two arms. One of the arms is attached to the motor, while the other is on an idle pivot.
The (asymmetrical) Z-shaped pantograph of the electrical pickup on the Berlin Straßenbahn. This pantograph uses a single-arm design. The electric transmission system for modern electric rail systems consists of an upper, weight-carrying wire (known as a catenary) from which is suspended a contact wire. The pantograph is spring-loaded and ...
Stone Faiveley pantograph in raised position on British Rail Class 86 25 kV AC Bo-Bo locomotive No.E3146 (later 86 017), London Euston, April 1969. France remained as Faiveley's core market. During the 1970s, the company introduced new corail coaches for the SNCF and provided equipment for a new generation of subway trains, the MF77. In 1972 ...
B13 Helmet steel, M1917A1, M1917. (Brodie helmet) B14 Tools for reloading small arms ammunition, parts and equipment. B15 Items common to 2 or more Group B products. B16 List of all Parts of Arms Locker, Arm Rack, Arm Repair Chest, and Pistol Cleaning Kit; B17 Rifle, U.S., cal. .22 M1922, M1, and M2 [9] B18 Pistol, Pyrotechnic, M2
The first bow collector was designed by the German engineer Walter Reichel in 1889 and shown at the World Expo in Paris the same year. [1] Reichel worked closely with Ernst Werner von Siemens, and with Siemens being a dominating force in the development of tramways in Europe, the bow collector quickly became the standard solution on the continent for collecting current.
The exception in this list is Watt's parallel motion, which combines Watt's linkage with another four-bar linkage – the pantograph – to amplify the existing approximate straight line movement. It is not possible to create perfectly straight line motion using a four-bar linkage, without using a prismatic joint. Watt's linkage (1784)
Rain-X is a synthetic hydrophobic surface-applied product that causes water to bead up and run off surfaces, most commonly used on glass automobile surfaces. The brand has since been extended to a range of automotive and surface care products, including wiper blades.
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