Pressure Bar Reduction Gearing

[VaultDoors]

When the One King West vault door is open the pressure plug (on the combo viewer) is at the bottom of the vertical slot and the pressure hinge pin (on the hinge side of the door) is at the bottom of the hinge bracket; notice the hinge pin extends below the bracket.



I assume when the door is closed (and compressed) the pressure plug and pressure hinge pin move up and the hinge pin would extend above the bracket.

I am not sure if the pressure system has one or two bars but the pressure plug and pressure hinge pin appear to move in the same direction when compressed/decompressed.

[VaultDoors]

Here's a pic of the One King West pressure hinge pin raised. The pressure wheel must have been spun after the door was open.

[Huw Eastwood]

When the One King West vault door is open the pressure plug (on the combo viewer) is at the bottom of the vertical slot and the pressure hinge pin (on the hinge side of the door) is at the bottom of the hinge bracket; notice the hinge pin extends below the bracket.



I assume when the door is closed (and compressed) the pressure plug and pressure hinge pin move up and the hinge pin would extend above the bracket.

I am not sure if the pressure system has one or two bars but the pressure plug and pressure hinge pin appear to move in the same direction when compressed/decompressed.

those are good observations. Its down to which way the bars rotate from the gearbox to turn the cams. The hinge end cam in the 3rd pic looks to turn anti-clockwise as seen with the space for 'float' being on top, but there's no way of knowing which way the other cam with the locating notch turns without seeing it, and either way produces the same action. Well spotted

[Doug MacQueen]

Regarding damage, one of the dial knobs on the Fed door got clipped off while they were doing a video several years ago.

[Doug MacQueen]

Looks pretty clear that it's not grease. Didn't need teeth all the way around so they didn't cut them in. That door looks alot like the nicely painted black one I posted. Doug