Cutters

This technique provides a way of cutting overhead communications or power cable with explosives placed from the ground and not easily removed if discovered. 

MATERIALS Tin can or bottle, sand, stones, strong cord, TNT or plastic explosive, nonelectric blasting cap, delay firing device (time pencil or time fuse). 

Prepare a charge of TNT or plastic explosive % to 1 pound in weight. 

Attach a wire loop securely to each end of the counterweight. Grenade fuse pull rings are ideal, or the rings can be fashioned by bending nails or stiff wire into loops. 

Cut a throwing line of fairly heavy smooth cord about four times as long as the distance from the ground to the target cable. The suspension lines of a parachute are excellent if available. 

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The most frequently used bit types are the roller cone or rock bit (F g. 3.8) and the polycrystalline diamond cutter or PDC bit. 

Cutter Cutting Cuttingfluids Cuttingmills Cutting oils Cutting tools... 

Lefebvre s equation Legal protection Legg cutter... 

The U.S. Bureau of Labor Statistics (20) has Hsted 416,000 persons employed as welders, cutters, and welding machine operators, with 90% employed in the fields of manufacturing, services, constmction, and wholesale trades. The same report projects a decline in employment for welders job prospects remain good, however, as the number of qualified workers entering the market is expected to balance workers leaving the field. 

Chemical Cutter Bulletin, Pipe Recovery Systems, Houston, Tex., 1993. 

Torf Pulton Associates Cutter Information Corp. 

Small complex tool steel parts are being made by conventional compaction and sintering in vacuum to near theoretical density. AppHcations include spade drills, knife blades, slotting cutters, insert blades for gear cutters, reamer blades, and cutting tool inserts. 

Extrusion. In general, extmsion is the process of forcing a polymer melt through a die (104,105). Typical extmsion appHcations include initial resin pelletization after manufacture and production of film, sheet, pipe, tubing, and insulated wire. The HDPE extmsion temperature is around 150°C, the pressure 40—50 MPa (5800—7250 psi). An extmsion production line usually consists of an extmder (mono- or twin-screw) with a die at the end, a cooling and shaping device, a pulling device (a roUer), and a cutter. 

Fig. 8. Sheet extrusion A, die inlet B, die C, three-roll finisher D, support roUers E, edge-trim cutter F, puU roUs and G, saw or shear (15).

A few fireclay refractories are produced by the stiff-mud process using an auger machine that pugs, de-aks, and continuously extmdes a clay column. A wke cutter cuts the clay into blanks which are then sized, shaped, and branded by a repress machine. 

Bayer Inc. Chicago, hi. Cutter Evergreen Scent cream 35... 

Cutter-type samplers can be installed for low pressure pipelines and enclosed troughs. These samplers contain a movable cutter coimected to a flexible hose through which the sample is extracted. Such devices meet all three rules for good sampling they sample a moving stream, the sample is made... 

Fig. 13. Slurry samplers (a) sloping trough cutter and (b) vertical pipe cutter.

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