Chapter 16 of 16 · 1353 words · ~7 min read

CHAPTER XIII.

CASES, MOUNTS, SHIELDS, EGG CABINETS, ROCKWORK, FERNS, GRASSES, SEA-WEEDS, ETC, FOR "FITTING UP."

CASES can be made in all styles. The oldest is the "box," which needs no description. Next in age is the "canted-corner case," a most odious abomination beloved of the amateur; the shape of the ground plan being as Fig. 38. A to A the front, B to B the back, C C C is glass, the points A A are wooden or metal uprights, pinning together top and bottom; B B B B is wood; hence it follows that all the space outside the dotted lines is useless, or if used at all, the uprights (A A) cross perhaps the most important part of the work, so that this shaped case resolves itself into the following difficulty: either the case is too large for the object, or two lines cross it.

Fig. 38--Plan of "canted-corner" case.

The usual glass-ended square case is easily made by any amateur joiner in this wise: Take two pieces of wood for top and bottom to size required, plane and square them up together to ensure their being exactly alike; then, with a "plough" plane, set to 0.375 in, "plough out" all around the front and sides of each to half its thickness. Take the back and nail it to the top and bottom with brads; having done which, next take two pieces of wood for the uprights of sufficient thickness to suit the case--too great thickness being guarded against.

Fig. 39--Section of "uprights" or pillars of square case.

Let us, however, assume that each of these pieces is 0.75 in. square, the height immaterial, "plough" these out on two sides, the "plough" still set at 0.375 in. for depth. For the front, "plough" out 0.375 in. from the edge, and 0.375 in. deep, this still leaves 0.375 in. out of the 0.75 in. untouched; turn the upright now on its side and repeat the "ploughing," allowing for just missing the point of intersection. Fig. 39 shows a section; the dark part is the wood left, the dotted squares show where the wood has been removed; the corner A, outside the dotted line, is afterwards rounded off. Each upright is "ploughed" alike; they are then glued and nailed to the top and bottom by brads running through; the rounded edges falling outside.

The case is now finished, as will be seen, for the reception of glass at its front and sides. First, however, it will have to be blacked or ebonised. Mix, therefore, some "lamp" or "drop" black in powder with thin glue-water, boil, and lay the mixture on with a stiff brush over the case whilst warm. When quite dry, rub it down with fine sand paper.

The subjects being mounted in the case, paper the glass in with brown paper and strong paste, and then go over the previously blackened case with a very thin coat of Brunswick black. When this is dry put a slip of 0.5 in. or 0.75 in. gilt moulding (procured at the picture frame maker's) all around the front of the case on top of the prepared glass, and just within the edges of the wood "ploughed" out to receive it, nicely mitring the comers with a mitre and shooting block.

The foundation of this latter is a sound 1 in. board, 2 ft. 6 in. long by 18 in. wide, or of any other convenient dimensions. Upon this is screwed another piece an inch or more thick (Fig. 40), so as to make a step (C C). Both pieces must be dry, so as not to be liable to warp; upon the higher part are screwed two strips of hard wood (B B) about 1.5 in. or 2 in. wide, forming a right angle where they meet. The whole must be very accurately made, and although deal will answer the purpose, hard wood of some kind will be more satisfactory. Beech or oak will do very well.

Fig. 40--Mitre block.

Suppose a piece of moulding to require mitring; it has only to be laid as shown against the guide bar (B), and sawn off on the line (CC), or laid on the other side against the second guide bar, and similarly cut off. It will be necessary to use both sides in this way, because, although the piece cut off has also an angle of 45 deg, it would need to be turned over and applied to the other, which could not be done without reversing the moulding. In a plain unmoulded strip this, of course, would not signify.

Gilt moulding may be put at each end or not, according to the fancy and pocket of the workman. The case is now finished, and shows the front and two sides of glass framed in by gilt, outside of which is the narrow black line of the wood. If it be desired to get up the wood of the case in a superior manner, it must first be blacked with the glue and lamp-black, sand-papered down, blacked and sand-papered again, and finally French polished.

The most substantial and effective case is the "stop-chamfered" one, made either in deal ebonized, or fancy woods polished. In this the glass is put in from the back with putty, or papered in, and finally held in place by "beads" of wood, the top is lined with linen and coloured in oil, and after the work is put in (from the back) the back-board (previously lined and coloured) is screwed up, and thus you have a case perfectly impervious to dust or to the changes of the atmosphere. Unless the amateur is a good workman, it will be better for him to get such a case turned out by a professional joiner, to ensure clean-cut work.

These are very handsome and neat cases, especially if the back be "ploughed" out deeply to receive a canvas on a stretcher, on which a characteristic scene is painted. In this event the included work must be good, and the fitting-up as plain as possible.

Cases for fishes are best glazed by "sprung" or semi-convex glass for the fronts, which often does away with the necessity for glass ends, and gives also a more artistic and finished appearance.

Glass shades, especially those of an oval shape, suit many birds well, but for large work are more expensive than cases. Stands in black or gilt are usually supplied with them; but those in mahogany, oak, and other fancy woods must be ordered, unless the amateur possesses a lathe, and the requisite knowledge to use it. In fitting up these with rockwork, etc, it is best to arrange the work on a "false bottom," or at least to cover up with paper the polished stand, lest it be spoiled.

MOUNTS.--"Mounts," which are simply tops of round or oval shades fitted into corresponding stands or frames of wood, or are open cylinders of glass with a flat piece cemented on one end, were, I believe, first invented by Mr. George Ashmead, of Bishopsgate-street, London. They are very effective, and also occupy but little space, as they hang up on the wall in positions where shades or cases will not go.

The method of making up a "mount" is as follows: Procure from a glass merchant the top of a shade, let us say 12 in. in diameter by 7 in. high. To this have a stand or rim turned out of thoroughly dry wood of sufficient size to overlap the shade 1 in. all round--14 in. in diameter, therefore, for a 12 in. shade. A groove should be turned in them stand of sufficient width to allow the glass to play freely.

The groove, however, should be so arranged that the excess in width should fall outside the glass. The centre of the stand inside the groove being tinted for a sky, as desired, the objects, whether small birds or butterflies, are introduced in the usual manner, and the glass is then cemented, in the groove, over them.

Waste cylinders of glass may be economised for making mounts. It