[1201] Strange Electromechanical Interlock Device Picked

Reacties 

  1. TheFreakonhell

    TheFreakonhell

    26 minuten geleden

    It's crazy how fast and experienced you became in only a few years! But seriously? Do you feel safe in your own home, knowing, that any lock can be picked? 😅

  2. Benjamin Breeg

    Benjamin Breeg

    7 uur geleden

    This was probably a prototype/proof of concept. I worked with a few large machines and all doors were secured with locks just like this one, the switch thrown by the mechanism functions as a redundant emergency stop to ensure nobody can bypass the open door and turn the machine on, since a person could be inside. They're usually dressed up in thick plastic and have a more industrial looking key

  3. stara Basista

    stara Basista

    14 uur geleden

    for train man for train to lock high voltage and low voltage on engine compartment nlcameras.info/wiki/mq7Xe4Z73ma2mKA/video you can take only one key from panel if you want take black key you need insert blue and blue key is use for start a train

  4. mikamitcha

    mikamitcha

    14 uur geleden

    Ooooo, I might actually have an idea on this one! As a controls engineer, I have some experience with this type of stuff (albeit most stuff has specialty hardware for applications like this). My guess is that the solenoid would be used for checking if a high speed motor is spinning. On some grinder systems, it can take upwards of 10-30 min to stop spinning after you stop powering the motor, and hooking the solenoid up against the motor (checking if it is acting like a generator) would allow you to ensure the motor is actually stopped before the key can be removed, and the key being removed could then disable the start signal to the motor. That may not be it exactly, but I would bet significant money it has to do with some physical force acting on an electric system via momentum, could be something flow related as well acting off pressure or even temperature related.

  5. StofStuiver

    StofStuiver

    16 uur geleden

    Such devices are in use also in (petro)chemical industry, in continuous processes, where you dont want to shutdown everything, bc one part has a (hopefully) temporary problem. For instance, a number of cracker installations, feed a compressor, that feeds a cold section, where fractions are separated. If the compressor trips for some reason, you do not immediately shutdown the entire factory, bc that is very costly. An electrical detection gives an electrical signal to your key, which can then be turned to allow another electrical signal, which opens valves, which directs cracker output from the compressor to a flare. You wouldnt want the key turned in normal operation. It will usually be an emergency operation that can be automated, but the key is leaving a human decision in the chain.

  6. Pinksnowbirdie

    Pinksnowbirdie

    17 uur geleden

    I imagine this being on a box baler or garbage compactor where you press a button and turn a key

  7. William Porter

    William Porter

    17 uur geleden

    I work for an electric utility. We use these in substations on high voltage circuit breakers. The breaker has to be open to energize the solenoid to turn the key. The contacts stop the breaker from being closed electrically with the key removed. The key can then be moved to allow a manual disconnect switch to be opened. We don't want these switches to be opened under load and having that key in hand means the breaker is open, therefore no load on the switch.

  8. Jared Fizer

    Jared Fizer

    18 uur geleden

    Cant wait for you to try stuff made here lock

  9. David Johnson

    David Johnson

    20 uur geleden

    Amalgamation.

  10. Philip Ludwell

    Philip Ludwell

    20 uur geleden

    ​@ UPVOTE THIS! COLAB NEEDS TO HAPPEN!!!!!

  11. Philip Ludwell

    Philip Ludwell

    20 uur geleden

    @ UPVOTE THIS! COLAB NEEDS TO HAPPEN!!!!!

  12. Yurriaan Van Duyn

    Yurriaan Van Duyn

    21 uur geleden

    I've seen similar things in an icecream factory I worked summer-shifts in back in the day ('96-'01). Huge stainless steel cauldrons of fast moving mechanical parts that need to be cleaned every day, but have no way to be disassembled properly without being busy for hours, so only the bowl is removed with the moving, mixing parts attached to the machine. You disengage it from the mains with a key. I remember the slight humming sound when operating the key(s), probably some arcing effect.

  13. RORO

    RORO

    22 uur geleden

    So that's where my car lock weeeent

  14. PewDiePies Dingleberries

    PewDiePies Dingleberries

    23 uur geleden

    The real security is the fact that if you tamper with the device you’ll violate the terms of your release

  15. noble1266

    noble1266

    23 uur geleden

    Your a lawyer? How would one request services, or even ask what field to know its even applicable to ask?

  16. ngwoo

    ngwoo

    Dag geleden

    I'm going to imagine he just wandered into an electrical substation or something, saw something with a lock on it, and in a couple seconds flat the lock, locking mechanism, and lockpicking lawyer were gone

  17. engines and more

    engines and more

    Dag geleden

    This should be a part of a 2 hand startup procedure to prevent unintentional startups. One hand is used to press a button that powers the solenoid while the other hand is used to turn the key.

  18. silvercrystalct

    silvercrystalct

    Dag geleden

    If I had to guess that would have been one half of a set of two identical locks. One would be the “Lockout” and the other would be “Operate”. When you want to start the device you turn the “Lockout” key off (throwing the switch) which unlocks the Solenoid on the “Operate” switch, you then take the key from the “Lockout” switch and transfer it to the “Operate” switch then turn on that switch which would engage the Solenoid on the “Lockout” switch so it couldn’t accidentally be engaged. I saw something similar in a Power Substation once, however that one also was a mechanical lock to prevent the door from being opened while the station was operating.

  19. bobafettjr85

    bobafettjr85

    Dag geleden

    You know how people say "have a nice day" so often that you just don't even realize they say it and you're like "yeah you too." It's just politeness and they don't actually care if you have a nice day and you donut care if they have a nice day either. But for some reason today watching this I actually feel like you actually are wishing us a nice day. And I really needed that. Thank you LPL for wishing us a nice day. I genuinely hope you also have a nice day.

  20. Garrett Rector

    Garrett Rector

    Dag geleden

    Ok he just saw this one on a door somewhere and took it when no one was looking this it what it looks like here 🤣

  21. Life on a Tangent

    Life on a Tangent

    Dag geleden

    You never fail to amaze me. I never thought I could be so captivated by watching someone open locks. Thank you for the entertainment.

  22. Robert Johnson

    Robert Johnson

    Dag geleden

    We see interlocks like that on 13.800V gear here, you have to shut the section off, before the key will work, and the other switch will not allow current to allow you to pump it up and close the circuit until the door is closed and locked, have had to "by pass" a few over the years to troubleshoot equipment.

  23. Lucky Guy

    Lucky Guy

    Dag geleden

    Didn't pick the signal to the solenoid? Part of the lock, no?

  24. Norm Macdonald

    Norm Macdonald

    Dag geleden

    I'm not a racist because I own a color TV

  25. StarInquiry

    StarInquiry

    Dag geleden

    this just popped up in my notifications tab as "uploaded 12 minutes ago", anyone else?

  26. nickademuss42

    nickademuss42

    Dag geleden

    My guess is the solenoid was also connected to the machines main power, when power was on you couldn't use the key, when power was off the key could be used.

  27. shockingguy

    shockingguy

    Dag geleden

    Ahhh Yes @LockPickingLawyer The infamous “Kirk Keys”. So if you don’t know about this company go check out their website, their product is used in many safety applications across the industry. Especially in the electrical industry in substations to prevent inadvertent switching of high-voltage circuits or to enter a cage or a restricted area at a plant or a transformer room where multiple keys will have to be used by different key holders in a sequence to allow the lock or breaker or to gain access to some thing or some location. I have seen photos of Kirk key installations requiring no less than 9 to 15 keys don’t ask me I can’t tell you where they are 🤔

  28. Corey Burton

    Corey Burton

    Dag geleden

    Do you try a few different tools/sizes first and then start the video or do you just know what to use when you see a lock

  29. K4NFP Radioelectronics

    K4NFP Radioelectronics

    Dag geleden

    I love key interlocks as well. You really need to feature trying to pick a drop key for an elevator. I understand if you don't want to because, every one of them is the same, but it would be a neat video!

  30. Bálint Szabó

    Bálint Szabó

    Dag geleden

    I don't know what exactly it is, but it has a lock cylinder, so I am obligated to pick it open.

  31. SaltyBrains

    SaltyBrains

    Dag geleden

    This is how we know we are not in a simulation: because IF we really were locked in a game of sorts, LPL would have picked his way out years ago.

  32. Oneofakind

    Oneofakind

    Dag geleden

    This was the nuclear launch authorisation key before they changed it to a keypad code 00000000.

  33. Teresa Garsia

    Teresa Garsia

    Dag geleden

    I can't way to see the video you opening the gold reserves door on fortknox😎

  34. Dave Jenkins

    Dave Jenkins

    2 dagen geleden

    Can you find a way of measuring the tension on the lever? like amount of gram pulls ?

  35. Sagichnicht

    Sagichnicht

    2 dagen geleden

    It was a Atomic missile lock

  36. Ergo Sum

    Ergo Sum

    2 dagen geleden

    I am going to guess that this is a lockout for a machine with two sources of power, the switch shuts off one source and the solenoid ensures the other source is disconnected.

  37. R R M

    R R M

    2 dagen geleden

    aka a Kirk key device

  38. deltasierrasix

    deltasierrasix

    2 dagen geleden

    Our cardboard bailer at Target had a similar design. It was key retaining. And could only be removed when machine was fully stopped.

  39. Ikxi

    Ikxi

    2 dagen geleden

    I think even if a lock like this was pickable eith a comb it would fulfill its purpose. Because it isn't securing something to be stolen but keeping something from turning on accidentally. Interesting lock

  40. awizardalso

    awizardalso

    2 dagen geleden

    On my shed I made a lock system using a regular key type lock. On the back I put a lever on the tab using a key to operate a switch to operate a motor to turn a threaded rod to push a metal rod into the other door. Turn the key the other way and a switch will make the metal rod retract to open the door.

  41. Alex Costa

    Alex Costa

    2 dagen geleden

    looks like u would use it on a door for a server room as an example. u activate the left side with a badge of sorts and then use the key to open the door or so

  42. Alexander Marinin

    Alexander Marinin

    2 dagen geleden

    Some Adeptus Mechanicus had to build the lock from standard components

  43. james d

    james d

    2 dagen geleden

    My uncle had one on his car,because of a DUI. It did nothing. He broke the steering wheel lock and just used jumper cables too the starter.

  44. Nicolae Botez

    Nicolae Botez

    2 dagen geleden

    Imagine him old and in a care home. With dementia. Picking the lock to the cleaning product cupboard and making drinks for everyone

  45. Stanley Shearer

    Stanley Shearer

    2 dagen geleden

    Maybe it was for launching nukes. It had to get the signal to launch and then the guys in the bunkers had to turn the key. Hey, just as good of an explanation as any.

  46. Seifix Network

    Seifix Network

    2 dagen geleden

    Can you pick a Car locks Mr. LPL?

  47. Welsh Dragon

    Welsh Dragon

    2 dagen geleden

    This guy can launch nuclear missiles

  48. Jody Whitlock

    Jody Whitlock

    2 dagen geleden

    I’ve seen these on power panels and transfer switch lockout panels

  49. Steve J

    Steve J

    2 dagen geleden

    Probably a reversing circuit that the machine needs to be manually reversed

  50. britcom1

    britcom1

    2 dagen geleden

    I would have added this clip to the end of this video as a way of explaining what the switch controls... nlcameras.info/wiki/f6fWcW2Yrmadq6w/video

  51. Aaron Fjerstad

    Aaron Fjerstad

    2 dagen geleden

    It's to stop an operator from turning on a machine while the power is off. For example: Two employees are working on an industrial saw which is on, but unplugged. The one working on the blade is near the switch which they are used to activating in order to use the machine. Another employee plugs in the saw. Bad things happen. This device makes sure that the machine can only be turned on when power is supplied to it.

  52. Viz Anonn

    Viz Anonn

    2 dagen geleden

    Sub series.... Picked in seconds.

  53. Gary Weiner

    Gary Weiner

    2 dagen geleden

    We used to use pretty much this exact setup at the National Synchrotron Light Source. The key and capture device was part of the safety interlock system. The experimental area, called a hutch, would be searched. The door would be closed and locked and then the key would be transferred to this device where it would be captured. You couldn't remove the key without pushing the button. With the key properly in place, you could open the photon shutter and allow beam into the hutch for the experiment. When the beam was on, you could not remove the key. The key removal button was deactivated. To remove the key, you had to close the shutter and turn off then beam, which would activate the button. The facility was built in the early 80's and was decommissioned in 2014. I wouldn't be surprised if this was actually one of ours that someone saved as a souvenir.

  54. James Patti

    James Patti

    2 dagen geleden

    This is called a Kirk key. It’s use is for large electrical circuit breakers. It’s purpose is to prevent two specific circuit being closed at the same time and preventing a explosion in some applications.

  55. RR KNL

    RR KNL

    2 dagen geleden

    This is commonly called a 'Kirk Key'. There is only one key and more than one lock so only one lock can be open at any given time. One use would be a facility that has a generator but no transfer switch. There would be Kirk Keys on the power company main and the generator main. This would prevent the generator from back feeding the power company lines (and creating a very serious hazard for anyone working on the lines). Another one I see a lot is a circuit breaker and a door to the inside of whatever the breaker is powering. You have to have the breaker off in order to open the door.

  56. Daniel De Jager

    Daniel De Jager

    2 dagen geleden

    Looks like a interlock system I saw demoed at an electrical substation. IIRC, it was on a capacitor bank. There was a timer that prevented you from pulling the key out of an assembly similar to this one for a few minutes after disconnecting the main feed. After the timer elapsed, you could retrieve the key from this lock, and use it to unlock the grounding switches. The time delay would allow the capacitors to discharge before the grounding switch would crowbar them, preventing damage to the switches.

  57. llamapi3

    llamapi3

    2 dagen geleden

    Put it in your kid's room as the only way to turn his light on, he has to learn how to pick the lock.

  58. aonomus

    aonomus

    2 dagen geleden

    These are referred to as trapped key interlocks. The solenoid enables the removal of a key, which activates a feedback signal to the control system. The removed key is then used to actuate another key switch or lock somewhere else. At no point can both systems be engaged because of the flow of the locks and key, and at no point can the key be moved until the system permits it. So, yknow someone does enter a machine work cell and get turned into minced meat by activation.

  59. Daniel Craigie

    Daniel Craigie

    2 dagen geleden

    Great example about 5:00 into this tour of substation interlocks nlcameras.info/wiki/g4KWZnl50qiZuI4/video

  60. Bennett Lewis

    Bennett Lewis

    2 dagen geleden

    When he's picking, he reminds me of my dentist. "Nothing on 1, 2, 3, some decay on 4, nothing on 5..."

  61. matthew mowatt

    matthew mowatt

    2 dagen geleden

    Because of the complexity and needing to have a signal to rotate the key I'm assuming it's some type of weapons arming system for like maybe launching missiles off a boat or submarine something along that line

  62. pirlouit44

    pirlouit44

    2 dagen geleden

    and... the ICBM is launched !

  63. McTunez

    McTunez

    2 dagen geleden

    Here is your key interlock in action in a power grid substation: nlcameras.info/wiki/g4KWZnl50qiZuI4/video Its primary purpose is to make technicians think about what they are doing and if/when they fail to think, try and prevent them from doing something life threatening.

  64. Jose Jimenez

    Jose Jimenez

    2 dagen geleden

    Again. The guy that trains criminals. You should be held accountable for any and all criminal acts resulting from your training for felons. Hope you get sued for this. Very irresponsible, this is worst than promoting crime, this is enabling it.

  65. actionmethod

    actionmethod

    2 dagen geleden

    I bet it was used as a safety device to make a machine inoperable and stop someone from turning it on while it was being serviced or repaired. If you're sitting inside of an industrial mixer, you want to make sure it is not turned back on with you inside it!

  66. Holy Ravioli

    Holy Ravioli

    2 dagen geleden

    That looks almost hand made

  67. Gianni Giumpup

    Gianni Giumpup

    2 dagen geleden

    We should get LPL a voting machine. According to Dems it would be his first fail.

  68. eddiebruv

    eddiebruv

    3 dagen geleden

    I thought that was a product from the 1970’s. I looked it up; it’s actually a current model. 😟

  69. Charles Mayes

    Charles Mayes

    3 dagen geleden

    Sent you an email about this!

  70. Strech

    Strech

    3 dagen geleden

    You cannot open that lock unless some required electrical safety preconditions are met. The machine must be safe to approach before anybody can get in! Some of the conditions could be: The machine is in a lowered down position where it cannot move or fall, hydraulics have been shut off and there is no pressure remaining in the piping, an emergency stop was requested to the drives and they safely assure that nothing is electrically powered in the locked area...

  71. Dru Bradley

    Dru Bradley

    3 dagen geleden

    Wouldn't that pin in the dropped down direction be considered a anti-picking device... or rather, not prevent the rotation of the cylinder, unless power was in the circuit. In the event of power outages, these units will not allow for access, until power is restored ? just a thought... clever system though.. I may have to incorporate something like these at my bunker, on top of the bank vault doors I made... pretty clever, based on how simply this is... Might also be one bad idea also, for end of the world type scenario... electric power being at a limited supply, if at all.. only to then be locked out of your own stuff...lol

  72. robertfjones85

    robertfjones85

    3 dagen geleden

    Incredibly common to have electro-mechanical interlocks on high voltage electrical switchgear. Often the solenoid will be linked to a switch board that is not close by. If you accidentally earth a HV circuit it is catastrophic or if you close a switch onto a circuit that maintenance is happening in then it is also life or deaf!

  73. Jared Leach

    Jared Leach

    3 dagen geleden

    Kind of disappointed you didn't address bypassing the electrical plunger. It's almost like you only picked the lock halfway.

  74. Bret Ziller

    Bret Ziller

    3 dagen geleden

    Kirk-Keyed interlocks usually are used to physically prevent removal of energized breakers from switchgear cells or to prevent bypassing of the switchgear door mechanisms when energized. The 1st electrical connections are remote "permissive" connections to allow operation of the key "locally". It's hard to know what they used it for without a schematic...interesting, though.

  75. Jessica Mann

    Jessica Mann

    3 dagen geleden

    Example of what these are used for: hnlcameras.info/wiki/g4KWZnl50qiZuI4/video

  76. Con Cahill

    Con Cahill

    3 dagen geleden

    I can just imagine LPL in a cinematic mental hospital ward where they have to keep on finding new locks for him to pick, for when they run out of 'distractions' for him, he will pick his way out of the 'secure' ward, and let all the patients run loose! In any case, that's all I have for you today . . . . . .

  77. Griffin Hewitson

    Griffin Hewitson

    3 dagen geleden

    Are there any locks you can’t pick open? I’d love to see a video on a few.

  78. esqueue

    esqueue

    3 dagen geleden

    Some interesting info: In the construction we use something called "Lock Out Tag Out". When we work on a potential dangerous energy source (not limited to electric), there must be a way to prevent any single person from activating the energy source. Every single person that works need a lock with their contact information on a tag. These locks go on a multi latch which in turn, lacks a box with a main key. These boxes have multiple of these multi latches attached to them. The master key is the key that physically locks out the energy source in some shape or form. Every lock must be removed before the master key can be accessed.

  79. Dragonfire Productions

    Dragonfire Productions

    3 dagen geleden

    This might be used for old switchgear equipments were an interlock prevents someone from accidentally switching the wrong MOD(Motor operated disconnect) this is used because shutting down an entire power grid accidentally is a horrible idea, this is also connected to the E. Stop switch to prevent someone from switching it on. The interlock is also used in substation breakers to prevent someone from turning it on while someone somewhere is working with the lines. It is usually connected to the lockout switch(electrical engineers please correct me)

  80. R3LL1K

    R3LL1K

    3 dagen geleden

    i want one or two

  81. ChamberlainII

    ChamberlainII

    3 dagen geleden

    It's called a kerf key. It's for switch gear and other medium/ high voltage gear.

  82. Jarek Gołębiowski

    Jarek Gołębiowski

    3 dagen geleden

    it's a locked lock

  83. hifihaxor

    hifihaxor

    3 dagen geleden

    this is a kirk key system. they are available in several interesting configurations. i have a very old one that uses 3 chicago locks. i also have a few setups that i removed from some switchgear that was being scrapped from a utility, with all keys and locks in that system. this particular setup is part of a larger system, where likely it is checking one or more breakers or switches to be open to electrically actuate the solenoid to allow the key to rotate, then rotating the key actuates a switch that would possibly trip a downstream (or upstream device) and interrupt its closing circuit. the key is then withdrawn and taken to another lock, which would then unlock a manual cranking mechanism for a disconnect switch, one that may only be operated either deenergized or under a no load condition. this is a hypothetical situation, not sure exactly what the extent of this particular system was originally. but this gives you some idea of a possible application. these are generally used in plants and utilities to ensure that certain orders of operation are strictly adhered to, for worker safety. and youre right, while pickable, GENERALLY procedures in place would have a worker stop what they are doing if the kirk key system doesnt allow them to proceed, rather than defeat the system entirely.

  84. 2000jago

    2000jago

    3 dagen geleden

    Where did you get it?

  85. S C

    S C

    3 dagen geleden

    Professional automation engineer here: In order to access a robotic cell or a machine area, the operator has to press an access button. The access request let the system (robot, machine, ...) stop in a controlled way (this might be what you see on the left side of the lock). When the equipment is stopped, the key is unlocked. The operator would then put the key in his pocket to prevent the cell or machine to be rearmed while still being in a hazardous place. The small switch might be a feedback to the controller letting it know that the key has been turned or it might be a safety switch to disable the system.

  86. ReznoV Vazileski

    ReznoV Vazileski

    3 dagen geleden

    Now, this would be a decent purpose for MasterLock :P Since a device safety switch only needs to ensure turning the device on is a conscious decision you can open it with a popsicle stick for all it matters as long as it takes somebody to put something in there and turn the switch :p

  87. g2145cal

    g2145cal

    3 dagen geleden

    i know a way that you can shorten your videos to 4 seconds...show a pic of the lock with a caption of "picked" every video is predictable...it's in the title "picked"

  88. mahmod ali

    mahmod ali

    3 dagen geleden

    Please reply, I am from Egypt and I learned a lot from you and I want to present content on NLcameras similar to the content you provide on NLcameras but in Arabic and I do not know how to get tools to start with and I do not have the ability to buy these tools now. I hope you help me and advise me how to start and how to get tools So that I can start with it, even if it is old, in order to start with it, please reply and thank you very much

  89. Nicholas R. Hudson

    Nicholas R. Hudson

    3 dagen geleden

    Electronic timed/remote lockout device. Solenoid is freed at timed intervals, or controlled remotely.

  90. WoodyBoy

    WoodyBoy

    3 dagen geleden

    The lock picking lawyer making criminals smarter with every video.

  91. Matt Hoskins

    Matt Hoskins

    3 dagen geleden

    I believe i have at least one example where that KIRK interlock is used. In a UPS "Wrap around" maintenance bypass unit. In large computer room UPS systems (Uninterruptible power supply), often it is necessary to use large switches and breakers to allow the UPS to be fully de powered without breaking power to the computer room. The process is usually similar to: Push button to activate start the process (usually also starts a timer and maintenance in progress alert); After UPS is internally in bypass solenoid allows KIRK key to turn, when key is turned switch sends signal to UPS to enter internal bypass; Human operator removes key; Key is used to unlock large KIRK bolt locks on circuit breakers in sequence that bridges the utility input "around" the UPS unit. Somewhere in my photo collection i have a pic of one of these.

    • Matt Hoskins

      Matt Hoskins

      3 dagen geleden

      Found the pic, sent on twitter. Enjoy.

  92. Tim Hammond

    Tim Hammond

    3 dagen geleden

    This is part of an interlock system utilizing several different lockouts for safety. I noticed that the key is captured when in the locked position. This requires that the solenoid gets energized to allow the lock to be rotated and then the key can be removed and preventing someone from operating the switch. I have dealt with this before where several different items had to be turned off, in sequence, before the final key was made available to allow entry into a hazardous area.

  93. Chris McGarry

    Chris McGarry

    3 dagen geleden

    I wonder if the large number of pins is to make it very unlikely that another key in the same plant would happen to have the same bitting - since that could cause an accident without any malicious intent

  94. N G

    N G

    3 dagen geleden

    How is your voice soft/high and low at the same time

  95. Nobody Ever, in History

    Nobody Ever, in History

    3 dagen geleden

    Now the question is: Is there an electrical to mechanical to electrical to mechanical lock? If so, why stop there? Someone should make an electrical to mechanical to electrical to mechanical to electrical to mechanical to electrical lock!

  96. halit bahadır

    halit bahadır

    3 dagen geleden

    Senin psikolojik sorunların var dostum

  97. Doug Moody

    Doug Moody

    3 dagen geleden

    I see a lock like this being used where you have a two person authentication. Say, you walk up to this lock and an intercom (person) asks you to insert your key. You do, then the person throws a switch allowing you to use your key (otherwise it couldn't even be picked) Then, when your key turns, it throws the switch. The switch could either be used to show on a display which doors are open or shut, or also could then allow you to get access to another door.

  98. PacketLoss Gaming

    PacketLoss Gaming

    3 dagen geleden

    Two person key safety interlock. The solenoid is actuated by a "deadman" switch, where the button has to be held down to enable to key to turn. The button is usually located well out of reach of the lock requiring a second person to press the button. The button can be bypassed in any number of ways, opening the enclosure and jumping it with wire, taping a bolt, nut, rock, or other small hard object over the button, or wedging a stick or broom/mop handle between the switch and the wall. Ideally the button would be in some kind of control room with more than one observer.

  99. Jason Gurtz-Cayla

    Jason Gurtz-Cayla

    3 dagen geleden

    Completely off the shelf components to make that thing it looks like, probably expensive to mfr.!

  100. Kostas Albanidis

    Kostas Albanidis

    3 dagen geleden

    Correct me if I am wrong but if the solenoid does not retract then even if you pick the lock then the key will not turn? If this is true then you need access to the solenoid *first* no matter how easy is to pick the lock...

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