Abstract: An attachment for heated wax carving tools, for forming gemstone settings in models used for casting articles of jewelry by the lost-wax process. There is a die which corresponds in size and shape to the selected gemstone, and a sleeve for detachably mounting the die to the tip of the carving tool. The heated die is pressed into the wax to form an indentation which corresponds to the seat in the finished article. The attachments may be provided in a set corresponding to calibrated sizes of stones having a particular style or shape.

Abstract: Caramel confections which facilitate coating, depositing, molding and baking are prepared from a finely divided solid candy phase dispersed within a continuous fat phase. These products differ from conventional caramel products which are based on sugars and milk protein and typically exhibit a chewy texture but are difficult to mold or to otherwise handle. A powdered caramel brittle material is made by sheeting, cooling and grinding a caramel prepared by cooking aqueous milk solids with sugar to a moisture level of below 6%. Preferably, from 5 to 35% of the powdered caramel brittle is mixed with 30 to 60% granulated sugar, 17 to 40% fat, and 10 to 25% milk solids. The mixture is refined to obtain an average particle size of 0.0004 to 0.0020 inches, mixed with an emulsifying agent and additional vegetable fat, and heated as necessary to reduce the moisture level.

Abstract: A toothed transmission belt adaptable for use with drive transmission having a series of teeth, where the curve of each tooth is based on Schiele's Anti-Friction Formula which describes a tractrix curve.

Abstract: A deep red or black dutched cocoa is produced by alkalizing cocoa presscake at between 150.degree. to 300.degree. F., 10 to 200 p.s.i. and 5 to 180 minutes. During the alkalization reaction, the reaction vessel is partially vented and an oxygen-containing gas is fed to the reaction vessel to maintain pressure and effect headspace changes at the rate of at least 3 per hour.

Abstract: Cacao bean shells are treated to develop a color. The resulting colored material is then extracted to produce a tasteless and odorless colorant.

Abstract: An insulated shutter assembly is installed in a ceiling or other wall of a building and used in combination with a ventilating fan for intake or exhaust, such as a whole house fan. The shutter assembly is insulated to substantially prevent heat transfer by conduction and convection through the shutter assembly when it is closed. An integrated mechanical lock system is used with the shutter assembly to provide a positive force against elastic seals when the shutters are closed to thereby provide an airtight barrier against air movement through the shutter assembly. The individual shutter blades are insulated to provide effective resistance to conductive heat losses when closed, and are also shaped to minimize aerodynamic drag and noise when open. The shutters may be manually locked and unlocked or may be motor actuated. The shutter assembly can thus be permanently installed and when the fan is not in use will effectively block heat transfer whether the building is being heated or air conditioned.