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CANADIAN MUSEUM FOR HUMAN RIGHTS — A CALL FOR INCLUSIVENESS, EQUITY AND FAIRNESS
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The CMHR represents a unique opportunity for Canada to be recognized as a leader in reflecting and further advancing contemporary research on genocide and human rights and in telling the story of all genocides without any attempt to represent the suffering of one nation, tribe or community as having been of more relevance or importance than any other’s. All attempts to do so argue fundamentally do an injustice to the memory of the many millions of victims of genocide throughout the ages, whether they suffered in Europe, or somewhere else.
How did Canada get its name? Most Canadians, if asked about the origins of the name “Canada”, will admittedly lament their ignorance of that part of Canadian history. Of those that do remember, they might even recall the “official” version of how Canada got its name, the one they received from the TV commercial “A Part Of Our Heritage – Canada.” After all, ...
The Montreal Biodome: A Funtastic Family Destination
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The Montreal Biodome (Biodôme de Montréal in French) is one of four Nature Museums in one of the most beautiful cities in North America and a great place to visit for a family with children. This 100,000 plus square foot museum opened its doors to the public in June of 1992. Over 15 million visitors have already seen this ecological wonderland, 845,000 visitors in 2008 alone.
How to Complete Your Transfer and Closing Forms For Your Elkhorn Timeshare in Manitoba
Congratulations on finding a buyer for your Manitoba–based Elkhorn Ranch and Resort timeshare! This is the biggest hurdle to overcome. We got rid of our timeshare in late 2011. Find out how here! (Visual Illustrations Included
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Solenoid valve with electromagnetic and pneumatic switching subassemblies
posted on: 2010-08-24 10:53:13
Solenoid valve has an electromagnet subassembly and a pneumatic switching subassembly. A valve plug is mechanically associated with the electromagnet subassembly, the pneumatic switching subassembly includes a body enclosing the valve plug trapped between two sealing seating facing each other.
The movement of the valve plug is controlled firstly by a spring located in a mobile core of the electromagnet subassembly through a pusher, and secondly by a means that forces the valve plug into contact on the upper seating of the pneumatic switching subassembly when the electromagnet is energized. The electromagnetic subassembly has four cylindrical pins at its assembly plane on the pneumatic switching subassembly, each cylindrical pin being provided with a transverse cavity formed on the generating line of the pin and terminating with a frustum of a sphere. The pneumatic switching subassembly includes four cylindrical cavities as its assembly plane with the electromagnet subassembly.
It is more particularly applicable to solenoid valves comprising an electromagnet subassembly associated with a pneumatic switching subassembly with valve plug, which is mechanically associated with the said electromagnet subassembly, the pneumatic switching subassembly being composed of a body enclosing the valve plug trapped between two sealing seats facing each other, the said valve plug movement being forced firstly by a spring located in the mobile core of the electromagnet subassembly through a pusher, and secondly by a means that forces the valve plug onto the upper seating of the pneumatic switching subassembly when the electromagnet is energized.
One of the technical problems that arises during the design of this type of solenoid valve is assembly of the electromagnet subassembly on the pneumatic switching subassembly. In particular, this type of assembly must satisfy the following requirements:ease of implementation and automation of the assembly;low cost price;cannot be disassembled;possibility of using the assembly on machined parts.
Some of these requirements are contradictory, and particularly the possibility of using the assembly on machined parts, a quality that usually causes cost increases.
The objective of the invention is to provide a solenoid valve that solves all these technical problems and also provides other advantages that will be described below.
The solenoid valve according to this invention is characterised in that its electromagnet subassembly comprises four cylindrical pins at its assembly plane on the pneumatic switching subassembly, each cylindrical pin being provided with a transverse cavity formed on the generating line and terminating with the frustum of a sphere, and in that the pneumatic switching subassembly comprises four cylindrical cavities at its assembly plane with the electromagnet subassembly designed to hold the pins of the electromagnet subassembly, transverse cavities being formed on the body of the pneumatic switching subassembly, these cavities terminating on the corresponding generating line of the cavities into which the pins will be fitted, and the said cavities terminating in the frustum of a sphere such that, after the two subassemblies are assembled together, the transverse cavities of the pins of the electromagnet subassembly are facing the transverse cavities of the said pneumatic switching subassembly, delimiting housings into which a ball will fit.
According to another characteristic of this invention, the solenoid valve comprises a manual control that is composed of a cylindrical-shaped part that firstly moves the valve plug from the lower seating to the upper seating, and secondly makes the pneumatic switching subassembly leak tight by a leak tightness function integrated into this manual control.
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