[Fig. 232] is the non-reversible screen hinge and, as its name implies, will only fold in one direction.
[Fig. 233] is a back flap hinge with a specially wide wing, used for the fall-down leaf of small tables and similar articles.
[Fig. 234] is a card table hinge. This is let into the edges of the table, so that all is flush or level both above and below the surface.
Centre or Pivot Hinges.—[Fig. 235] is a centre or pivot hinge, used on the top and bottom of wardrobe doors, more particularly the interior door of a three-winged wardrobe where the method of fixing is confined to the cornice and plinth. The flange carrying the pins or pivot is let into the top and bottom of the door, the remaining flange being let into the cornice and plinth respectively.
Rising Butt Hinges.—[Fig. 236] is the rising butt hinge, used on dining and drawing-room doors, so that when the door is opened the door rises sufficiently to clear the thickness of the carpet. This hinge has also an advantage over the ordinary butt hinge in that it is self-closing, i.e., the weight of the door plus the bevel on the hinge joint causes the door to close. Band and hook hinges and other ordinary varieties are too well known to require illustrating.
Acute Angle Hingeing.—[Fig. 237] is a sectional plan of a corner cupboard showing a good method of hingeing the door. The inset a shows an enlarged view of the corner carrying the hinge, also the adaptor piece c, which is fitted to the inside edge of the cupboard so that the hinged edges are at 90 degrees to the face. This is a far better and stronger method than that shown at b, which is often attempted with disastrous results. The incorrect method b allows insufficient wood for fixing purposes, and in nearly all cases the thin edge of the door breaks away during the making and fitting, or soon after completion. The adaptor piece may have a face mould worked upon it to give a pilaster-like appearance if fancy so dictates.
Fig. 237.—Hingeing Door of Corner Cupboard.