19 radio set carriers.

[Chris Suslowicz]

Originally Posted by David Dunlop

I have an NOS Carriers No. 22 finished in a wrinkle Brown No. 2 that has puzzled me for years. Top dead centre of the rear base channel is 'PC 72287 C' in white. The leading edge of the front base channel has 'FRONT' stencilled in white.

To my eye, there does not seem to be anything asymmetrical about this carrier that would necessitate having to identify a specific orientation, or have I been missing something all these years?

David

I've never met the No.22 carrier, but as far as I am aware it's symmetrical. The only possible reason for there being a "front" and "back" is if it's been drilled for an earth
terminal (at front right) like the Carrier No.25, or at the ends of the channel to take the earthing strap from the rhs of the set, though I think they used the shock absorber bolt for that.

They may have stencilled it with a "FRONT" marking just to be consistent with all the other set carriers which were definitely "handed" for the supply unit mounting, etc.

Incidentally, there are a lot more carriers than the 1,2,3 and 21,22,23,25 in the documentation, intended to cover things like the WS19HP and twin WS19 installations for Command tanks, et cetera. Some of them look Very Odd Indeed.

Chris.
I have Carriers No.1 (plated steel), 21 (painted No.1), 3 (or 23, hard to tell) (wooden board) and 25 (all-welded steel with a single long strap that goes around everything).

I'm missing the adapter plate for the supply unit for the No.25. (This is the "house shaped" plate with four holes to allow it to be screwed to the top of the supply unit, a "step fold" to clear the studs on the end of the strap clamp, and two keyhole slots to take the said studs.
Its purpose is to reverse the direction of the keyhole slots in the supply unit case (intended for when it's laid on its side on the set top), which point the wrong way for the clamping strap. (The "tails" of the slots need to point to the right for this mounting to work.) Does anyone have one that they could photograph and/or measure, please?

Accurate measurements of the No.2 (or 22) would also be very useful.

[Richard Farrant]

Originally Posted by Chris Suslowicz

I've never met the No.22 carrier, but as far as I am aware it's symmetrical. The only possible reason for there being a "front" and "back" is if it's been drilled for an earth
terminal (at front right) like the Carrier No.25, or at the ends of the channel to take the earthing strap from the rhs of the set, though I think they used the shock absorber bolt for that.

They may have stencilled it with a "FRONT" marking just to be consistent with all the other set carriers which were definitely "handed" for the supply unit mounting, etc.

Hi Chris,
This picture of a No.22 Carrier does not look symmetrical, the angle bracket looks to be closer to the end on the right. So there looks to be good reason for it to be marked Front.

regards, Richard

[rob love]

Isn't there another piece that goes on the right end to hold a bit of a terminal board for the power wires? The terminal block C1? Or does it mount on the "plate, metal mounting, carrier sets C1"?

[David Dunlop]

Richard.

Thanks for posting that picture. It prompted me to grab a tape measure and go hunting in the basement for my No. 22 Carrier for a closer look.

Sure enough. The distance from the left rail to the end of the base channel is 62mm. The distance from the right rail to the end of the base channel on that side is just 50mm, so for some reason, spacing is critical from one end to the other with this particular Carrier.

Best regards,


David

[Chris Suslowicz]

Originally Posted by Richard Farrant

Hi Chris,
This picture of a No.22 Carrier does not look symmetrical, the angle bracket looks to be closer to the end on the right. So there looks to be good reason for it to be marked Front.

regards, Richard

Aha! The left hand end also has an earthing strap fitted: Item 31 if you blow the image up.

Presumably that bolts to the radio table/vehicle metalwork, and the WS19 earthing strap to the other end of the carrier?

There may be room to get a power connector on the left hand end, but the standard "Batten, Terminal, 2-pt" is rather too large, I think. I suspect the extra clearance on the left hand side is for power and harness cabling to be routed clear of the front panel.

Chris

[Russell Boaler]

Reviving this thread I thought I'd post a picture of the various securing straps used with the carriers. I have 5 sets of straps and all are different. The first two are manufactured with conveyor type belting but of different grades, the third is stitched canvas. The fourth is black conveyor type belting and the last is of webbing construction. I suspect that it could just be that each were produced by different manufacturers who used materials that they already familiar with or had easy access to.

[RichardT10829]

Is the 22 radio cradle etc still used on a Mk2 carrier ?

[David Dunlop]

From what I have seen, Richard, both the No 21 and No 22 Carrier can be used for a 19-Set installation in that UC. Either one is centered in the space across the front right corner of the rear compartment.

If you can get your hands on a copy of Bill Gregg’s Profile No. 5 you can see how either installation is set up.

David

[Tim Bell]

I have a roll of this webbing strap somewhere... I'll have a look for it.

Happy to sell some if it is the right stuff.


Tim