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2. Balanced-arm lamp - Wikipedia

   en.wikipedia.org/wiki/Balanced-arm_lamp

   Anglepoise model 1227 from 1935. A balanced-arm lamp, sometimes called a floating arm lamp, is a lamp with an adjustable folding arm which is constructed such that the force due to gravity is always counteracted by springs, regardless of the position of the arms of the lamp. Many lamp brands (such as the Anglepoise, originator of the concept ...

3. Linkage (mechanical) - Wikipedia

   en.wikipedia.org/wiki/Linkage_(mechanical)

   Variable stroke engine (Autocar Handbook, Ninth edition) A mechanical linkage is an assembly of systems connected so as to manage forces and movement. The movement of a body, or link, is studied using geometry so the link is considered to be rigid. [1] The connections between links are modeled as providing ideal movement, pure rotation or ...

4. Slider-crank linkage - Wikipedia

   en.wikipedia.org/wiki/Slider-crank_linkage

   A slider-crank linkage is a four-link mechanism with three revolute joints and one prismatic (sliding) joint. [1] The rotation of the crank drives the linear movement of the slider, or the expansion of gases against a sliding piston in a cylinder can drive the rotation of the crank. There are two types of slider-cranks: in-line and offset.

5. Ackermann steering geometry - Wikipedia

   en.wikipedia.org/wiki/Ackermann_steering_geometry

   The Ackermann steering geometry is a geometric arrangement of linkages in the steering of a car or other vehicle designed to solve the problem of wheels on the inside and outside of a turn needing to trace out circles of different radii. It was invented by the German carriage builder Georg Lankensperger in Munich in 1816, then patented by his ...

6. Centreboard - Wikipedia

   en.wikipedia.org/wiki/Centreboard

   A centreboard which consists of solely a pivoting metal plate is called a centerplate; the term "centreboard" may refer to either a wooden or a metal pivoting retractable foil. A daggerboard is similar but slides vertically rather than pivoting. The analog in a scow is a bilgeboard: these are fitted in pairs and used one at a time.

7. Adjustable Table E 1027 - Wikipedia

   en.wikipedia.org/wiki/Adjustable_Table_E_1027

   Table E 1027 is an adjustable steel and glass table designed by Irish designer Eileen Gray in 1927. Originally created for her E-1027 house, the table has since become one of Gray's most famous designs. [ 1][ 2] The table's adjustable arm and light weight make it flexible in function. [ 2] It has been suggested that Gray originally designed the ...