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Laboratory scissor jacks are lifting stages for beakers, flasks, water baths, 
Laboratory (Lab) Jack
{{Laboratory equipment Laboratory equipment
Laboratory scissor jacks are lifting stages for beakers, flasks, water baths, stirrer Stirrer may refer to:
* Agitator, a general type of mechanical device
* Magnetic stirrer, a laboratory device
* Stirring rod, a simple laboratory tool
* Stir stick, for stirring drinks
*Stirring spoon, a type of spoon
* Whisk or other kind of stirr ...
, or other lab tools used to elevate equipment height to the user's needs, usually around 5 to 20 cm. It consists of metal pieces connected together in a scissor-like shape between a top and a bottom platform. The metal pieces acting as an adjustable lift using the scissors mechanism
A scissors mechanism uses linked, folding supports in a criss-cross 'X' pattern.
The scissor mechanism is a mechanical linkage system used to create vertical motion or extension. It consists of a series of interconnected, folding supports that ...
(or pantograph
A pantograph (, from their original use for copying writing) is a Linkage (mechanical), mechanical linkage connected in a manner based on parallelograms so that the movement of one pen, in tracing an image, produces identical movements in a se ...
) in changing its height and also can withstand a wide range of weight.
Manual lab jack
The manual laboratory scissor jack works mechanically by having a central screw connected to the central piece of metal between two layers of crossing metal pieces. The screw performs the same task as screws in hydraulic car lift, supporting the metal pieces in withstanding the oppressing weight. Turning the screw increases and decreases the angle between the metal pieces, resulting in extension and contraction of the platform height.See also
*Clamp (tool)
A clamp is a fastener, fastening device used to hold or secure objects tightly together to prevent movement or separation through the application of inward pressure. In the United Kingdom the term cramp is often used instead when the tool is fo ...
* Retort stand
In chemistry, a retort stand, also called a clamp stand,Laboratory-Equipment.com (2020):Large Clamp Stand, for Q700. Online catalog item 5323-07. Accessed on 202-02-18. a ring stand, or a support stand,Fischer Scientific (2020):American Education ...
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External links
Laboratory (Lab) Jack
{{Laboratory equipment Laboratory equipment