We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.
Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.
BRITISH KINEMATOGRAPHY
Vol. 16, No. 1
number is sufficient for black-and-white reversal processing and, moreover, this proved to be the maximum number that the film could be pulled through (using the drying cabinet shown) w ithout the film tension at the driving wheel exceeding about one pound.
The basic structure on which all the various machines can be assembled is a stout steel chassis, mounted on casters, and carrying a manifold drain pipe. On part of the chassis is a frame-work of small section steel angle which serves as a rack on which the solution tanks can be suspended. The tank-rack is divided into eleven positions by sockets in the top horizontal members which hold the ball races that are the bearings for the top roller assemblies (Fig. 2).
The Tanks
The tanks are all made to a uniform pattern except in respect of length. They are all of FMB stainless steel, of square 4"x4" section, and fitted
Fig. 2. Top roller assembly. The Bakelite rollers were made
by screwing together two single-sided 17.5 mm. rollers that
happened to be available
Fig. 3. View of one of the standard tanks showing the three hose connections and the recessed bottom that allows the tank to stand on the floor when not required
with a stout flange round the top edge so that they can be suspended from the tankrack (Fig. 3). We have six full depth (43 ins.) tanks with a working capacity of 11 litres, four half depth tanks (6 litres) and two one-third depth (3| litres). Three hose connections are provided in each tank to allow the circulation and agitation of the solutions in a number of ways, to provide a drain connection to one of the eleven points on the drain manifold, and to allow tanks to be interconnected. A few of the methods of achieving these objects are indicated in Fig. 6. Rubber tubing is used for the connections. After completing an assembly of tanks and connecting them to the water supply, to each other, to the drain manifold, etc., all unwanted hose connections are closed with rubber bungs.
Film Path To return to the film transport : one loop of film is formed in each tank, the
i