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2. Electromagnetic lock - Wikipedia

   en.wikipedia.org/wiki/Electromagnetic_lock

   The magnetic lock is suitable for both in-swinging and out-swinging doors. Brackets (L bracket, LZ bracket, U bracket) are used to orient the armature for use with both applications. Filler plates are also used to provide a large, flat mounting area on the door frame when the electromagnet is larger than the available mounting space on the door ...

3. 20 mm caliber - Wikipedia

   en.wikipedia.org/wiki/20_mm_caliber

   20 mm caliber is a specific size of popular autocannon ammunition. The dividing line between smaller-caliber weapons, commonly called "guns", from larger-caliber "cannons" (e.g. machine gun vs. autocannon), is conventionally taken to be the 20 mm round, the smallest caliber of autocannon.

4. Home Depot - Wikipedia

   en.wikipedia.org/wiki/Home_Depot

   This is an accepted version of this page This is the latest accepted revision, reviewed on 27 February 2025. American multinational home improvement supplies retailing company The Home Depot, Inc. A Home Depot in Onalaska, Wisconsin Company type Public Traded as NYSE: HD DJIA component S&P 100 component S&P 500 component Industry Retail (home improvement) Founded February 6, 1978 ; 47 years ...

5. Home Quarters Warehouse - Wikipedia

   en.wikipedia.org/wiki/Home_Quarters_Warehouse

   Home Quarters Warehouse (HQ) was an American chain of "big-box" home improvement stores, originally based in Virginia Beach, Virginia.In 1984, the chemical manufacturing company W.R. Grace & Co. announced its intentions to enter the home improvement retail business, hiring Bernard R. Kossar and Frank Doczi to head the new chain.

6. Pole piece - Wikipedia

   en.wikipedia.org/wiki/Pole_piece

   A magnet keeper is a specialised pole piece used to temporarily connect the poles of a permanent magnet, to help to preserve the magnetism, and for safety in the case of large and powerful magnets. Another specialised pole piece is the armature of an electromechanical solenoid , which produces work by being attracted by an electromagnet when ...

7. The Home Depot Black Friday 2023 Sale Is Already Here—and ...

   www.aol.com/lifestyle/home-depot-black-friday...

   Opening times for each store will vary based on your location, so check your local Home Depot to confirm what time doors will open to the public on November 25. 1. Home Accents Holiday Frosted ...

8. Electromagnet - Wikipedia

   en.wikipedia.org/wiki/Electromagnet

   This phenomenon occurs because the magnetic core's material (often iron or steel) is composed of small regions called magnetic domains that act like tiny magnets (see ferromagnetism). Before the current in the electromagnet is turned on, these domains point in random directions, so their tiny magnetic fields cancel each other out, and the core ...

9. Magnet keeper - Wikipedia

   en.wikipedia.org/wiki/Magnet_keeper

   A "horseshoe magnet" made of Alnico 5, about 1 inch high.The metal bar (bottom) is a keeper. A magnet keeper, also known historically as an armature, is a bar made from magnetically soft iron or steel, which is placed across the poles of a permanent magnet to help preserve the strength of the magnet by completing the magnetic circuit; it is important for magnets that have low magnetic ...