Chapter IV.

FINGER PLATES.

The finger plate used on the edge of a door to receive the wear of the

hand serves as an excellent exercise in sawing and filing. The design is

transferred to the metal by use of carbon paper. The sawing is done as

in the escutcheon. The surface may be left smooth or it may be gone over

with a hammer having a face somewhat rounded. If the design calls for

any repousse work, it is done as described on page 64.

[Illustration]

[Illustration: PLATE 18. FINGER PLATE]

[Illustration: PLATE 19.]

PAD CORNERS.

Desk pad corners while not difficult to make, are very useful as well as

ornamental. The design may be carried out in any one of three ways:

pierced, embossed or enameled.

In making the pattern for the pad corner, an allowance must be made for

the thickness of the pad, as at A, and also for laps as at B, that are

to go under the pad to hold the corners in place. The corner may be

riveted to the pad at the back or the laps may be bent in such a way as

to clamp them to the pad, and permit of their removal at any time.

When the design has been pierced or embossed, the laps can be bent over

a piece of metal equal in thickness to that of the pad. If the design is

to be carried out in enamel, all bending must be done before enameling

as any expansion or contraction of the metal will crack the enamel.

[Illustration: PLATE 20. PAD CORNERS]

BOX CORNERS.

Box corners serve primarily to protect the corners of the box and to

increase its strength, but they can be so made that they give character

to the box. The corner should be designed to suit the particular box or

chest to which it is to be applied. The method of making a box corner is

slightly different from those previously described. After the design has

been drawn, a pattern made from it in heavy paper will be found helpful,

for this pattern may be used to mark out the design on the metal. In

this way irregularities in the design are less likely to occur than when

the design is transferred with the carbon paper directly to the metal.

The decoration may be pierced or embossed, according to one's choice.

After the sawing or embossing has been done, it should be filed

carefully and smoothed up with fine emery cloth to do away with crude

and sharp edges.

The holes for the rivets are then drilled and the burr that is made by

drilling is removed with a larger drill. The two edges, A A. Plate 21,

that are to come together when in place on the box should be beveled a

little so that they will form a better corner. After this is done, the

sides are bent down over a block of wood or metal placed in the vise. A

rawhide hammer should be used to avoid marks on the face of the corner.

In this as in other work, if it is desired that the metal have a

hammered surface, the effect must be given before the design is cut out.

Suitable rivets are next made as described on page 98 and illustrated on

page 99. After being colored or polished the corner is ready to be

applied to the box.

[Illustration: PLATE 21. BOX CORNERS]

[Illustration: PLATE 22. BOX CORNERS]

STAMP BOXES.

Stamp boxes may be made in various ways, three of which are described

below:

Box No. 1 and 2, Plate 23.

On a piece of 20 gauge metal, lay out or draw the pattern as shown on

the plate; first with pencil, then with a scratch awl to insure

permanency, going over the lines lightly on the metal. By the use of a

saw frame and a No. 3 saw the corners of the square are cut out.

[Illustration: FIGURE 18.]

The edges that form the corners are next filed up, keeping all edges

straight and at right angles; after this, the edges are beveled a

little, forming a mitre which, when soldered, makes a better joint than

otherwise.

The sides are next bent up over an iron block placed in the vise as at

Figure 18. The corners should be brought well together, using a rawhide

hammer, No. 1, Plate 2.

[Illustration: PLATE 23. STAMP BOX]

A piece of iron wire about No. 24 is then placed around the box and

twisted tight enough to hold the corners in place while being soldered,

Figure 19. Borax and solder are next applied and the soldering done as

described on page 63. In this case, however, all of the corners should

be prepared at the same time for soldering. If but one corner is

prepared and soldered, the heat necessary for soldering causes the

copper oxides to come to the surface at the other corners which must be

removed before they can be soldered. This is remedied by coating with

borax and placing the solder at all corners before applying any heat.

[Illustration: FIGURE 19.]

[Illustration: FIGURE 20.]

After the soldering is done the box is pickled. Surplus solder is next

removed by filing. The box is again placed over the iron block which is

held in the vise; the corners and bottom edges are squared up, using the

round end of hammer shown at No. 2, Plate 2, and the top is filed off

level. This completes the body part of the box.

The cover is made in the same way as the box. Much care must be taken to

have the pattern carefully and accurately drawn so that when the cover

is finished it will fit closely to the body. The design, if there is

any, whether it is embossed or enamelled, must be carried out before

cutting it to size.

Box No. 2, although of different proportion, is made in the same way as

No. 1.

Box No. 3, Plate 24.

[Illustration: PLATE 24. STAMP BOX]

[Illustration: PLATE 25. STAMP BOX COVER DESIGNS]

Take a strip of metal as wide as the required depth of the box and as

long as the sum of the four sides. The length of each side is measured

off on this strip and a line scratched at right angles to the edge. The

strip is then placed over a block of metal and, with a rawhide hammer

bent at right angles at scratched lines, making three corners, leaving

the ends to meet at the fourth corner where they are to be soldered.

These ends should be mitered as in Box 1, before soldering. After the

corner has been soldered and the box pickled, it is again placed over a

block and trued up square. Having decided which is to be the top and

which the bottom of the box, file the bottom edges level and at right

angles to the sides. A piece of metal is then cut for the bottom large

enough to allow about 1/16" to project on all four sides.

It is then prepared for soldering and bound together with iron wire,

Figure 20. The solder should be cut in small pieces and placed about the

inside edges. In soldering the bottom, care must be taken not to

unsolder the corner. This may be avoided by keeping the flame away from

the soldered corner until the rest of the solder has run, applying it to

the corner at the last and only for a fraction of a minute.

After the soldering, the box is pickled and the edges of the bottom

filed square. The 1/16" that was allowed to project may be filed flush

with the sides of the box or left to project a little.

The cover is made by taking a strip of metal about 3/16" wide and long

enough to fit around the inside of the box. The length of the sides

(inside measurement) is laid out and then bent over a block as

previously described. The corner is soldered and the upper edges are

filed off level and soldered to a piece of metal, forming the top. This

strip on the inside keeps the cover in place. If the design on the cover

is to be carried out in enamel it should be done after the cover is

completed. If the design is to be embossed, it should be done before the

strip which holds the cover in place is soldered on.

[Illustration: PLATE 26.]

Box No. 4, Plate 24.

The body of this box may be made like either No. 1 or No. 3. An addition

is shown on this one which allows the stamp to be taken from the box

more easily. A strip of 20 gauge metal 1/16" wide is soldered on the

inside next to the top edge extending from one end to the other as shown

in the section at D. Another piece of the same gauge metal is cut, in

length equal to the inside length of the box and about 1/4" wider than

the box. This is placed inside the box and sprung into place as shown at

C in the section. This device may be applied to either of the other

boxes.

The cover of this box is made of but one piece and hinged with a strap

hinge, which also forms the cover decoration.

To give the surface of the metal of this box a bold hammered surface

adds much to its attractiveness.

MATCH BOX.

The Match Box may be made in the same way as the Stamp Box with the

exception of the cover. It seems better to have the cover of the match

box hinged. The hinge may be made so as to form a part of the decoration

of the cover by making it a strap hinge as shown at Plates 15, 16, 17.

The hinge may also be made of tubing and extend across the back of the

box. This method leaves the cover to be decorated in some other way,

either by embossing or by enameling or by both.

[Illustration]

[Illustration: PLATE 27. MATCH BOX]

[Illustration: PLATE 28. MATCH BOX COVER DESIGNS]

Copper Work: A Text Book for Teachers and Students in the Manual Arts · 第 4 / 10 章