This section is from the book "Cassell's Cyclopaedia Of Mechanics", by Paul N. Hasluck. Also available from Amazon: Cassell's Cyclopaedia Of Mechanics.
It is often difficult to decide which is the best and cheapest way of hanging screen frames. A screen should be hinged so that it will close both ways, but the expense of the double folding joints made specially for that purpose is too great to admit of their frequent use. The following describes a cheap, simple, and efficient substitute. Assuming that the frames are ready for hanging, and that the screen consists of four frames, there will be three separate hangings, which will require six laths laced together in pairs, as shown. The laths should be sawn out of a 1/2-in. board the full height of the frames, and if the thickness of them is 7/8 in., the laths should be 1/16 in. wider, to allow the screen to close flat together without any strain. Gauge and plane up the laths both in width and thickness, neatly finish off the ends so that all of them are exactly the same length, and, to prevent the sharp edges cutting the tapes, rub them well off with sandpaper. They are now ready for painting, staining, varnishing, or polishing, as may be preferred. When they are dry, proceed to put on the tape, which may be got in various colours from 3/4 in. to 1 in. wide; about 3yd. will be required for each pair of laths. Mattress binding is good; being made of linen it does not stretch.
Begin by tacking the end of the tape to the top end and under side of one of the laths in an oblique direction; lay the two laths together, pass the tape up between them from the under side, and lace them together rather loosely, over and under, first left, then right, and leaving a loop as shown at Fig. 1. When sufficient turns have been put on to reach the bottom, begin again at the top to pull the laths tight together, turn by turn, and regulate the distances; fasten the end off at the bottom to the underside, as before. It is of great advantage to hold the two laths edge to edge in the bench-screw while pulling the tape tight, as it leaves both hands at liberty to manipulate it. Proceed now to hang the frames together; bore four holes in each lath, at equal distances between the tapes, neatly countersink for screw-heads, and screw them to the edges of the frames. This joint has a very pleasing effect if it is neatly done and the tape is made to harmonise with the material on the frames. It is very durable, draught- and sight-proof, and can, if necessary, be renewed at a very small cost of time and money.


Fig. 2. Method of Hinging Screen Frames.



Fig. 3. Garaen Tripod Stand for Telescope.
 
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