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Dorma was founded by Wilhelm Dörken and Rudolf Mankel as Dörken & Mankel KG in Ennepetal, Germany, in 1908. [2] The family business was managed by owner Karl-Rudolf Mankel in third generation. As part of succession planning , previous sole Dorma proprietor Karl-Rudolf Mankel transferred the majority of his shareholding to his daughters ...
It employs more than 15,000 people in over 50 countries. It formed as the result of a merger between former Kaba and former Dorma in September 2015 and is publicly traded on the SIX Swiss Exchange. [5] dormakaba generated a turnover of CHF 2.85 billion in financial year 2022/23, a growth of 3.3 % compared to the previous year. [6]
A geared continuous hinge is a type of continuous hinge used mostly on doors in high-traffic entrances and features gear teeth that mesh together under a cap that runs the length of the hinge. The hinges use a number of fasteners to attach the door to the frame from top to bottom to distribute a door’s weight more evenly along the frame to ...
Concrete hinges are hinges produced out of concrete, with little or no steel in the hinge neck, which allows a rotation without a significant bending moment. [1] The high rotations [ 2 ] [ 3 ] result from controlled tensile cracks as well as creep.
The U.S. Navy unveiled a photo of a warship's high-powered laser weapon in an annual report released last month. The image published in the Office of the Director, Operational Test & Evaluation's ...
An ornate brass door hinge A barrel hinge. A hinge is a mechanical bearing that connects two solid objects, typically allowing only a limited angle of rotation between them. Two objects connected by an ideal hinge rotate relative to each other about a fixed axis of rotation, with all other translations or rotations prevented; thus a hinge has one degree of freedom.
Diagram of a structure featuring plastic hinges In the structural engineering beam theory , plastic hinge is the deformation of a section of a beam where plastic bending occurs. [ 1 ] In earthquake engineering plastic hinge is also a type of energy damping device allowing plastic rotation [deformation] of an otherwise rigid column connection.
Dormer Pramet is a global manufacturer and supplier of cutting tools for the engineering industry, including drilling, milling, threading and turning tools. Its origins date back to 1913, making it one of the world's oldest specialist manufacturers of engineers cutting tools.
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