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What is pipe spanner?
The pipe wrench (in the US), Stillson wrench or Stillsons (inthe UK) is an adjustable wrench used for turning soft iron pipes and fittings with a rounded surface. The design of the adjustable jaw allows it to lock in the diametre frame, in such away that any forward pressure on the handle tends to pull the jaws tighter together. Teeth angled in the direction of turn dig into the soft pipe. They are not intended for use on hardened steel hex nuts or other fittings because they would ruin the the flats cut on to the head. However, if a hex nut is soft enough that it becomes rounded beyond use with standard wrenches, a pipe wrench is sometimes used to break the bolt or nut free of its position
Who invented the adjustable spanner?
In many European countries (e.g. France, Germany, Spain and Italy) it is called an "English key" as it was invented in 1842 by the English engineer, Richard Clyburn. Improvements followed; on 22 September 1885, one Enoch Harris received US patent 326868 for his wrench that permitted both the jaw width and the angle of the handles to be adjusted and locked. Other countries, like Denmark and Israel, refer to it as a "Swedish key" as its invention has been attributed to the Swede, Johan Petter Johansson, who in 1891 received patent for an improved design of the adjustable spanner. Johansson's spanner was a further development on Clyburn's original "screw spanner". And in some countries (e.g. Hungary, Iran, Slovenia, Poland, Romania) it is called "French key".
What is a jaw crusher?
A Jaw Crusher is one of the most common types ofcrushing equipment. It is mainly used in crushing the material with compressive strength under 320Mpa. The jaw crusher is usually used in the field of mining, metallurgy, road & railway construction, water conservancy, chemical industry and so on.
What is the meaning of spanner?
One who, or that which, spans., The lock of a fusee or carbine; also, the fusee or carbine itself., An iron instrument having a jaw to fit a nut or the head of a bolt, and used as a lever to turn it with; a wrench; specifically, a wrench for unscrewing or tightening the couplings of hose., A contrivance in some of the ealier steam engines for moving the valves for the alternate admission and shutting off of the steam.
Which lathe chuck can hold the most difficult workpiece shapes?
The 4-Jaw independent chuck. Due to its independent jaws it can grip the most complex shapes. 3-Jaw and 4-Jaw self centering chucks are only capable of gripping cylindrical and hexagonal (3-Jaw self-centering) or cylindrical, square and octagonal (4-Jaw self-centering) shapes.
Definition of lever jaw wrench?
A lever jaw wrench is one with an adjustable jaw.
What are the domestic uses of an adjustable wrench?
An adjustable wrench is a wrench with an adjustable jaw, allowing it to sized to the fastener head that it is tightening or loosening. A main domestic use is with plumbing fixtures, either to tighten or replace them.
What do you call a wrench with adjustable jaws?
Adjustable crescent wrenches. one jaw is fixed to the handle, and the other adjusts
What is a crescent wrench used for?
It is an adjustable spanner, an open ended spanner with a movable jaw allowing it to fit various sizes of nuts and bolts.
What are the unit of measurement for the jaw opening in a metric wrench and uscs wrench?
What is the unit measurement for the jaw opening in metric rench and a USCS wrench
What is an alligator wrench?
An alligator wrench is a variety of pipe wrench with a flaring jaw with teeth on one side.
What is the difference between a wrench and a pipe wrench in construction tools?
A wrench normally has a fixed size head. A pipe wrench has an expanding jaw and can fit a variety of sized pipes.
Types of non-adjustable wrenches?
1. Adjustable SpannersBy far the most common type, adjustable spanners, also known as crescent wrenches, are found in almost any household these days. These wrenches are widely available both at local hardware stores and online. They are reasonably priced and come in many different sizes to fit any type of job. Their most distinguishable feature is the 15-degree angle between the movable jaw and the handle.Adjustable spanners are suitable for fastening or unscrewing plumbing accessories, such as pipes, elbows, and faucets. There is even a subtype that is utilized as a lid opener by people who do not have sufficient strength in their hands.When using this type of adjustable wrench, you should make sure that the movable jaw is snugly clasped around the pipe, so as to avoid rounding. Always place the jaw on the side towards which you will be rotating in order to prevent the deformation of the tool.2. Monkey WrenchThis type of adjustable wrench is typically used in large-scale projects. It is distinguished by a long handle and jagged jaw grips that stay firmly affixed to all kinds of pipes, boxes, or other objects. The instrument is made from steel or steel alloys through heat-forging, which accounts for its remarkable strength. A monkey wrench is so strong that it can bear the whole weight of the human body pushing against it.3. Pipe WrenchThe pipe wrench or Stillson wrench is very similar and often confused with the monkey wrench. Yet, it has a sleeker body and is much easier to use in locations that are hard to reach, such as nooks and corners. The pipe wrench is suitable for working with soft iron pipes and round-surface fittings. It should not be used with hex nuts because the teeth of its jaws would damage the hex head.The pipe wrench is made of aluminum or steel and can be purchased in handle sizes of 10, 14, 18, 24, 36 and 48 inches. Jaw kits are also available for people who prefer to repair their old wrench rather than buy a new one.4. Plumber WrenchThe plumber wrench has a key ring attached to one of its handles, which is used to close the movable jaws around the pipe or fitting. Since it clasps with significant force, the plumber wrench does not have to engage the nut or bolt head it is applied to. Due to its unwieldy size, this wrench should be used only where the other types are not suitable.
What is the most common type of plastic surgery on the jaw?
The most common type of plastic surgery on the jaw is corrective jaw surgery. This type of surgery is done to improve appearance, and the ability to chew better. This surgery is called Orthognathic surgery.
Most common injury from tetanus?
Most common injury for tetanus is that you get a pain in your jaw or also called lockjaw.
Which kind of simple machine is plumber wrench?
It is a simple lever mechanism using to hold round objects firmly without slipping, as well as to tighten square, hexagonal nuts or bolts.
Is the lower jaw of a mammal called mandible?
The lower jaw of a mammal is called a mandible. The upper jaw is the maxilla.
