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Who Knows Shirley Wellard?


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<p>Quite possibly the most intricate and ingenious reloadable cassettes ever devised, and certainly marvellous examples of metal-age craftsmanship. The "Universal" tag is stretching things a little, as they suit only cameras with a rewind knob that pulls out from the body to allow film loading, thus excluding many back or bottom-loading classic cameras. These are not your everyday cassettes with a felt light trap, but work on the labyrinthine principle with a rotating shield that retracts or closes within the camera. Furthermore, the cassette has to be fitted to each camera, with a range of adjustments:</p>

<p>A backlash adjustment ( the little chromed arm visible in the images) which has to be rotated and set to ensure a snug fit against the back of the camera, to prevent the cassette rotating.</p>

<p>A tracking adjustment, (the big machine screw on the end), to position the emerging film exactly over the film track.</p>

<p>A spool length adjustment concealed within the spool which adjusts the length of the spool to the reach of the camera's rewind shaft .</p>

<p>Once the adjustments are complete, the spool is a perfect fit to the camera, in this case a rather nice old Agfa Ambi Sillette I used to experiment on. Here's a pic of the cassette in place.</p><div>00coP1-550935884.jpg.3f7b71ef99ebfa6affa802ebf5240127.jpg</div>

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<p>In the above image the cassette in the camera is in the open position. The spool beside the camera shows the components. The brass end cap screws on, not into the external casing but into the revolving shield which opens or closes the cassette, though it renders the cassette light-tight when in place. Film must be wound onto the spool in the dark, the trimmed and shaped end being secured by a rat-trap slit. The loaded spool is fitted into the open cassette and the end retrieved through the opening, then the brass end cap fitted and revolved to close the shield, leaving a length of film protruding ready for trimming prior to loading into the camera. The first image shows this.</p>

<p>In the second pic the end of the spool displays four "pimples". This end is inserted into the cassette against a very slight spring pressure. When pushed firmly in, the "pimples" engage with "dimples" in the fitting that operated the rotating light shield, and a rotation of the spool then opens or closes the shield. This is what happens in the camera; once the film is loaded and the camera back closed, one presses down on the rewind knob and rotates it anti-clockwise about 270 degrees until is comes to a stop. The cassette is now open. Similarly, after rewinding, pressure is exerted on the rewind knob and clockwise rotation closes the shield.</p><div>00coP2-550935984.jpg.63572d778e6d58a9c9eb46e11e2bde4e.jpg</div>

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<p>The only drawbacks: the rewind knob sits about 1 mm. clear of it's flush position, (really only a cosmetic situation), and one must remember to open and close the cassette... On my first attempt I didn't get the shield properly open, and the scratches resulting from the film being drawn over the surface of the shield were remarkable. Other than that, the cassettes work very well, but were always very expensive, costing 5 British Pounds in 1955. There are over a dozen parts to each cassette, and at least half a dozen different metals ranging through brass, stainless steel, blued steel, die-cast alloy... A possibly apocryphal explanation for the odd name suggests that the designer came from the town of Shirley in the Midlands, and half-way through the project he was heard to remark that, "If we make a profit from these it will be well 'ard-earned..." The cassettes were distributed by the renowned English photographic company, K.G.Corfield Ltd.</p>
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I just bought a couple of these, with box and instructions, for £3 apiece (a bit of luck since on eBay they

seem to go for £20 or more). They're neat little items, and a hell of a big improvement over the plastic felt-trap reloadables I've been using up 'til now. The hard bit is finding cameras into which they'll fit.

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<blockquote>I'm still a bit vague how you open and close the trap once you get it fitted to the camera.</blockquote>

<p>

To open - press down on the rewind knob and turn it anticlockwise (looking down on it) as far as possible.

<br/>

To close - same as above, except turning clockwise (the same direction as you turn to rewind the film).

<br>

 

(Adjust direction for cameras that load backwards)

</p>

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