Engravers

Copper-wheel engraving is used for decoration and in artware production. Abrasive compounds are appHed in water suspension to the spinning copper wheel held in a chuck. The glass is brought into contact with the wheel to produce the design (see Abrasives). 

Grade ES-1 is suitable for engraving as nameplates, etc. It is made with black or various colored surfaces and a white opaque core (usually melamine binder). 

These processes may be followed by heat treatment and pressing with engraved roUs to produce the desired grain surface. 

To confine the print paste to the engraved parts of the print roUer, any excess that may have been appUed by the furnishing roUer is scraped off the... 

All instruments and eontrol deviees on the eontrol panel must have identifying nameplates of durable laminated plastie or similar engrave-able material. Gauge nameplates, alarm light nameplates, and shutdown light nameplates should eaeh have different eolor baekgrounds. 

Fig. 1 4. Engraving (1676) of a metal foundry refining department in the industrial Saar region of West Germany. Source TTie Bettmann Archive, Inc.

In the photographic field polycarbonates now complete with ABS for projector housings, whilst in cameras polycarbonates are now used in the shutter assembly, film drive, flash-cube sockets and lens holders. One popular low-cost camera recently introduced into the UK market had at least eight parts moulded from polycarbonate. Polycarbonate film is also used for photographic purposes, e.g. for quality colour fine engravings. 

A sector rigidly connected with the telescope, on which divisions (representing refractive indices) are engraved. 

Ausstattung, /. fitting, equipment, outfit setting get-up dowry, ausstauben, v.t. dust, winnow, ausstechen, v.t. dig out, cut out, pierce engrave. 

Bild-stecher, m. engraver, -stein, m. figure stone, agalmatolite, -stock, m. (Printing) cut, electro. 

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