Locking throat mechanism in door knob stuck

Have you released the knobs? They are held on with a small depression thing on the stem of the handle. Press this in and pull on the knob to release it.

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to the fitting.

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The shaft for the lock fits in the knob. The lock on the knob might be 90 or 180 degrees out of rotation. Please remove the know and twist the lock 1/4 turn and put it back together. Also you may need to reset the location with a key and when the lock knob is off, turn the lock set with the key, then turn it and replace the knob.

remove lock from door , remove spindle from center of lock by center spindle then depressing release and remove spindle ( release is spring loaded at base of spindle , insert a flat peace of 1/2 " wide metal with a V shape at the end , , push the metal I to the lock and release the lock . it may have to be taped in until the lock falls out,

You will probably need to replace the latch assembly. There is a small rivet that holds part of the latch together, and it also acts as a pivot point for a small piece that retracts the latch. If it gets bent, the latch won't retract fully, but you might be able to push it back and get the door open.

On the inside side of the door knob you should be able to use a screwdriver to remove the finish covering against the door. This should get you to a point where you can release everything.

Get a big scredriver and put it in the square in the middle of the mechanism and turn it till it opens, or you will just have to pry it out with the scredriver.

if someone has sprayed oil in it. Locks do not like oil. use a contact cleaner to wash out the oil. let dry and apply Lock lube only. Put the lock back together making sure everything moves free and be sure all piece's go together with out being in a bind . the lock should preform great.

Inside plate arond the base of the knob needs to pop off.

Try removing the knob from the inside. Look for a place the push in with a flat head screwdriver. A release point is there some where.

After the knob is off the plate should come off and reveal the screws.

I assume the latch mechanism is still intact... the piece on the edge of the door that locks inside the strike plate when the door is shut -- if that's the case the only thing left to do is align the two knobs, one on iether side of the door, making sure the shaft goes thru the latch mechanism properly (it only fits thru one way) and then sandwich it tightly to the door and tighten it together with a phillips head screwdriver... some kwikset locks require you to turn one of the knobs to get the bolt heads to seat properly.

I'm not familiar with the chelsea model but they are all very similar... if you have more than the 2 knobs with a long shaft on one then chances are the solution above does not apply... you probably will have a knob with shaft and then a flat plate with holes, a finished plate and a plain knob... in this case align the knob and shaft thru the latch mechanism, place the plate with holes on the other side of the door and twist it slightly so the bolt heads lock in and tighten the bolts to the plate... now snap the finished plate over that and push the knob over the exposed shaft that remains... you'll need a flat head screw driver to lock the knob on where a small spring loaded piece fits into a cutout on the handle...

that's about the best I can explain it.