Monday, May 22, 2006

Home Decorations

Dolls were issued in England as Action Girl. These dolls were very similar to the US-issued dolls except that their eyes were side glancing and their hair was different. The US dolls had a piece of hair on other side of the face pulled up into a bow on top of the head. The Action Girl dolls had straight hair with no bows. Desktop D├ęcor objects are also available.

The Action Girl dolls also had their own line of clothing. They also came out as a special Grants doll called Donna. These dolls had curly hair pulled to one side. It is used for home decorations.

The Teddy bear is a stuffed toy bear for children. It is an enduring, traditional form of stuffed animal, often serving the purpose of comforting upset young children. In recent times, some teddy bears, Wall Clocks have become expensive collector's items are used as a home accents.

The word art is also used to apply judgments of value, as in such expressions as "that meal was a work of art" (the cook is an artist), or "the art of deception," (the highly attained level of skill of the deceiver is praised). It is this use of the word as a measure of high quality and high value that gives the term its flavor of subjectivity.

Monday, May 08, 2006

Hydraulic workholding

The basic workholding accessory for a wood or metal turning lathe is faceplate. It is a circular metal plate which fixes to the end of the lathe spindle. The workpiece is then hold tightly to the faceplate using t-nuts in the faceplate slots. It may be attached to the lathe using thread and a precision cone arrangement. Camlock arrangement is commonly used where shaped studs and cams replace threaded studs for rapid exchganging of the faceplate with other accessories, such as three or four jaw chucks. The different types of workholdings are pneumatic workholding, vacuum workholding and hydraulic workholding.

The faceplate was the ancestor of lathe chuck, an arrangement of three or more adjustable 'dogs' bolted to the faceplate providing a primitive chuck arrangement. It may seem that the faceplate is a primitive accessory superseded by precision chucks, but its inherent flexibility and the possibility of achieving great accuracy by careful setting up mak it an essentail for the well equipped lathe.

For certain specialist jobs temporary or special faceplates can be made, perhaps in wood or light alloy that can be machined or adapted for difficult workholding jobs. One example might be attaching thin sheet metal to a wooden face plate using woodscrews, allowing the trepanning of holes, with the tool cutting into the sacrificial faceplate material.