Lock system for sliding gate latch

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Hello folks, recently, I was approached by a friend to see about making him a latch system for his gate that couldn't be readily compromised. We all know that most locks keep the honest folks honest and those that really want to get at something will certainly find a way. I have included pictures of a design that I came up with to address his particular needs. It is made from 10GA. SS sheet, some SS round stock, and SS flat bar. The padlock is set to swing down into the vertical position and be locked there which allows no room for it to be cut with bolt-cutters. In this position with the lock locked it cannot be slid out of the guides and keeps the gate locked. When it is unlocked the padlock can be swung up to the horizontal position and slid in slightly to hold it horizontal while the rest of the mechanism is slid out to allow the gate to be unlocked. A little something for all of you to consider if you should be needing something to serve a similar purpose. Best regards, AllanEDIT: I should have included that the finished part is made from two formed channels, when they are assembled together they make a hollow rectangular tube that measures 1" x 3 1/4" x 19 1/2" long. There is also a milled slot for the lock to swing into and allow for clearance of it's hasp when it is in the vertical locked position. Attached ImagesLast edited by aevald; 04-22-2010 at 02:14 AM.aevald
Reply:Very clever design, but I see a half dozen philips that would pretty much make it all mote. As you said, locks are to keep honest people honest.
Reply:great design, are the two channels welded together? or are you able to take them apart if the lock ever fails and you need to replace it?BTS Welding
Reply:I really like that. Thanks for sharing. I'm going to save some of those pictures to reference later.
Reply:That should slow them down quite a bit, at least they can't just snap the lock off with bolt cutters. MM350P/Python/Q300MM175/Q300DialarcHFHTP MIG200PowCon300SMHypertherm380ThermalArc185Purox oaF350CrewCab4x4LoadNGo utilitybedBobcat250XMT304/Optima/SpoolmaticSuitcase12RC/Q300Suitcase8RC/Q400Passport/Q300Smith op
Reply:I like the design, it looks very solid. Just a question, what if a crook were to hit the body of the lock with a hammer?
Reply:I like the design, it looks very solid. Just a question, what if a crook were to hit the body of the lock with a hammer?
Reply:Hello Steve, changing out the lock would require milling out the pin from both sides of the mechanism and removing the round stock that the lock pivots on, I would then need to reinsert a pin and weld it back in. Best regards, Allanaevald
Reply:aevald - very nice aesthetics.  A variation I have used to deny access to a masters paddle lock is to cut the u-bolt off of the lock and mount the two components separetely in their respective parts.  The body of the lock is heavy enough to easily sustain a weld.  In this case the lock end of the tube would be capped, the lock mounted internally on the horizontal, with only a key hole showing.  The u-bolt, or portion of, would be attached to the slider.  The lock would be completely inaccessable while preserving all the aesthetics.  Opus
Reply:Hello Opus, if I follow your design correctly, you are opening the lock and cutting the hasp as close to the lock body as possible. Then you are possibly chamferring this cut end and attaching the hasp portion to the slider by welding and then you are capping the receiver brkt. and welding the main lock body to the cap plate with only a hole for the key, thus allowing access to open it up. Obviously you also have to line up the two parts so that they can engage correctly when closed. Very ingenious, like that design. Thanks for the comments and suggestions. Best regards, Allanaevald
Reply:No lock known to man will keep out a determined thief  Attached Images"Any day above ground is a good day"http://www.farmersamm.com/
Reply:Unless your picture depicts the homeowner's deterent. Just set it up with some servo-drives and various remote actuators and then set up sensors on your perimeter to properly engage and employ it's capabilities. You've certainly got the right idea, farmersamm. Best regards, Allanaevald
Reply:The brass cylinders can be quickly drilled out by those in the know.American and some other lock companies, over 10 years ago,began installing tangs to break off the drill point to defeat this option.http://weldingweb.com/attachment.php...1&d=1271999595 Attached ImagesBlackbird
Reply:I don't know if I should open this debate but aren't master locks easily defeated using a bump key? Much faster than a drill or hammer. Looking at the demos on youtube it appears to only takes a couple bumps and it's open. Any neighbor watching would think they had the key. I like motion activated sprinklers! Keeps the deer away and the trespassers get soaked