(b) Catch for securing strap leading from back end of skin. The photos showing catch half open and shut.
(c) Lower side of front edge of skin, showing sharp brass entrance.
(d) Upper side of front edge of skin, showing button-hole on brass entrance.
(e) Lower side of middle of skin, showing rivets for button-hole. There should be six rivets instead of only four, as shown.
(f) Upper side of middle of skin, showing button-hole.
The measurements, when not otherwise stated, are in millimètres.
The skin, mounted on its webbing, is placed between the jaws of the V which are then closed and secured by a couple of copper rivets. (See Figs. c and d.) The “button-holes” on the skin are not, of course, of the ordinary kind. The front one is shown in Fig. d. The second one in Fig. f.
The front “button-hole” is cut out of the upper part of the tent-shaped brass V as shown in Fig. d.
The second “button-hole” (Fig. f) allows the button to slide backwards and forwards in it so as to permit of the skin being pulled quite taut. This “button-hole” is made by simply cutting a hole and slot in another piece of sheet brass, and attaching it to the skin by means of rivets. (See Figs. e and f.) N.B.—Only four rivets are shown in this drawing, but probably it is better to make the slot a little longer and to add another rivet at each side.
In fitting this kind of detachable skin to a pair of ordinary ski, it is probably best to fill up the customary groove cut in the bottom of the ski. The ski will then be devoted exclusively to steep mountain work where it is in any case advantageous to dispense with the groove. (See page 33.) If, however, it is desired to retain the groove it will be advisable to make the button holes extra strong, or else to make them up so as to fit close against the wood.