WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

B28D　WORKING STONE OR STONE-LIKE MATERIALS

B28D 1/00 Working stone or stone-like materials, e.g. brick, concrete {or glass}, not provided for elsewhere; machines, devices, tools therefor (fine working of gems, jewels, crystals B28D 5/00; working by grinding or polishing B24; devices or means for dressing or conditioning abrasive surfaces B24B 53/00)

B28D 1/001 ・{Cleaning bricks (by milling B28D 1/185)}

B28D 1/003 ・{Multipurpose machines; Equipment therefor}

B28D 1/005 ・{Cutting sheet laminae in planes between faces (splitting easily splittable material B28D 1/322)}

B28D 1/006 ・{Artificial ageing of stones; Providing stones with an antique appearance}

B28D 1/008 ・・{by means of a tumbler}

B28D 1/02 ・by sawing

B28D 1/025 ・・{Use, recovery or regeneration of abrasive mediums (B28D 5/007 takes precedence; for grinding and polishing in general B24B 57/00)}

B28D 1/04 ・・with circular {or cylindrical} saw-blades or saw-discs (B28D 1/10 takes precedence)

B28D 1/041 ・・・{with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles}

B28D 1/042 ・・・{the saw blade being carried by a pivoted lever (B28D 1/043 andB28D 1/044 take precedence)}

B28D 1/043 ・・・{Gantry type sawing machines}

B28D 1/044 ・・・{the saw blade being movable on slide ways (B28D 1/043 takes precedence)}

B28D 1/045 ・・・{Sawing grooves in walls; sawing stones from rocks; sawing machines movable on the stones to be cut}

B28D 1/046 ・・・{Sawing in a plane parallel to the work table}

B28D 1/047 ・・・{with the work mounted on a carriage}

B28D 1/048 ・・・{with a plurality of saw blades (B28D 1/046 takes precedence)}

B28D 1/06 ・・with reciprocating saw-blades (B28D 1/10 takes precedence)

B28D 1/062 ・・・{the saw blade rotating about its longitudinal axis}

B28D 1/064 ・・・{Sawing grooves in walls; portable sawing machines}

B28D 1/066 ・・・{the workpieces being moved in a horizontal plane, e.g. with vertically or oblique movable saw-blades}

B28D 1/068 ・・・{Components, e.g. guiding means, vibrations damping means, frames, driving means, suspension}

B28D 1/08 ・・with saw-blades of endless cutter-type, e.g. chain saws {i.e. saw chains}, strap saws (B28D 1/10 takes precedence)

B28D 1/082 ・・・{consisting of chain saws}

B28D 1/084 ・・・・{the saw chains being mounted on a pivotingly adjustable arm}

B28D 1/086 ・・・{consisting of strap saws}

B28D 1/088 ・・・{Sawing in situ, e.g. stones from rocks, grooves in walls}

B28D 1/10 ・・with provision for measuring

B28D 1/12 ・・Saw-blades {or saw-discs} specially adapted for working stone {(B28D 1/041 takes precedence)}

B28D 1/121 ・・・{Circular saw blades}

B28D 1/122 ・・・・{with exchangeable cutter bits or cutter segments}

B28D 1/124 ・・・{Saw chains; rod-like saw blades; saw cables}

B28D 1/125 ・・・・{with exchangeable cutter bits or cutter segments}

B28D 1/127 ・・・{Straight, i.e. flat, saw blades; strap saw blades}

B28D 1/128 ・・・・{with exchangeable cutter bits or cutter segments}

B28D 1/14 ・by boring or drilling (rotary drilling machines B23B; {tools for drilling machines B23B 51/00}; portabe percussive machines B25D; {rotary drilling machines for mining or quarrying E21C 1/00})

B28D 1/143 ・・{lens-drilling machines}

B28D 1/146 ・・{Tools therefor (drill bits for earth or rock drilling E21B 10/00)}

B28D 1/16 ・by turning

B28D 1/18 ・by milling, e.g. channelling by means of milling tools

B28D 1/181 ・・{using cutters loosely mounted on a turning tool support}

B28D 1/183 ・・{Hand tools, e.g. portable, motor driven}

B28D 1/185 ・・{for brick cleaning}

B28D 1/186 ・・{Tools therefor,e.g. having exchangeable cutter bits (B28D 1/181 takes precedence; bits for picks or pick-holders for mining or quarrying E21C 35/18)}

B28D 1/188 ・・・{with exchangeable cutter bits or cutter segments}

B28D 1/20 ・by planing, e.g. channelling by means of planing tools

B28D 1/22 ・by cutting, e.g. incising

B28D 1/221 ・・{by thermic methods}

B28D 1/222 ・・{by pressing, e.g. presses}

B28D 1/223 ・・・{Hand-held or hand-operated tools for shearing or cleaving}

B28D 1/225 ・・{for scoring or breaking, e.g. tiles}

B28D 1/226 ・・・{with plural scoring tools}

B28D 1/227 ・・{for cutting tubes}

B28D 1/228 ・・{Hand-held or hand-operated tools (B28D 1/222, B28D 1/225 take precedence)}

B28D 1/24 ・・with cutting discs

B28D 1/26 ・by impact tools, e.g. by chisels or other tools having a cutting edge (portable percussive tools B25D)

B28D 1/265 ・・{Scabbling machines or scabbling tools}

B28D 1/28 ・・without cutting edge {e.g. chiseling machines}

B28D 1/30 ・to form contours, i.e. curved surfaces, irrespective of the method of working used (for artistic purposes B44B)

B28D 1/32 ・Methods and apparatus specially adapted for working materials which can easily be split, e.g. mica, slate, schist

B28D 1/322 ・・{Splitting of the working materials}

B28D 1/325 ・・{for making holes in easily splittable working materials}

B28D 1/327 ・・{for cutting or shearing easily splittable working materials}

B28D 3/00 Dressing mill discs or rollers (dressing the tools of sawing machines or sawing devices B23D 63/00; treating the cutting members of cutting machines to facilitate cutting B26D 7/08)

B28D 3/005 ・{Tools therefor}

B28D 3/02 ・Machines

B28D 3/04 ・・for grooving rollers

B28D 5/00 Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor (working by grinding or polishing B24; for artistic purposes B44B)

B28D 5/0005 ・{by breaking, e.g. dicing}

B28D 5/0011 ・・{with preliminary treatment, e.g. weakening by scoring}

B28D 5/0017 ・・{using moving tools}

B28D 5/0023 ・・・{rectilinearly}

B28D 5/0029 ・・・{rotating}

B28D 5/0035 ・・・・{cooperating with a straight breaking edge}

B28D 5/0041 ・・{the workpiece being brought into contact with a suitably shaped rigid body which remains stationary during breaking}

B28D 5/0047 ・・・{using fluid or gas pressure}

B28D 5/0052 ・・{Means for supporting or holding work during breaking (means for conveying work to or discharging work from the breaking machine B28D 5/0058)}

B28D 5/0058 ・{Accessories specially adapted for use with machines for fine working of gems, jewels, crystals, e.g. of semiconductor material (B28D 5/0005, B28D 5/024 take precedence)}

B28D 5/0064 ・・{Devices for the automatic drive or the program control of the machines}

B28D 5/007 ・・{Use, recovery or regeneration of abrasive mediums (for grinding and polishing in general B24B 57/00)}

B28D 5/0076 ・・{for removing dust, e.g. by spraying liquids; for lubricating, cooling or cleaning tool or work}

B28D 5/0082 ・・{for supporting, holding, feeding, conveying or discharging work}

B28D 5/0088 ・・・{the supporting or holding device being angularly adjustable}

B28D 5/0094 ・・・{the supporting or holding device being of the vacuum type}

B28D 5/02 ・by rotary tools, e.g. drills {(B28D 5/0005 takes precedence)}

B28D 5/021 ・・{by drilling}

B28D 5/022 ・・{by cutting with discs or wheels}

B28D 5/023 ・・・{with a cutting blade mounted on a carriage}

B28D 5/024 ・・・{with the stock carried by a movable support for feeding stock into engagement with the cutting blade, e.g. stock carried by a pivoted arm or a carriage}

B28D 5/025 ・・・・{with the stock carried by a pivoted arm}

B28D 5/026 ・・・{with a cutting blade carried by a movable arm, e.g. pivoted (B28D 5/023 and B28D 5/028 take precedence)}

B28D 5/027 ・・・{with a cutting blade arranged underneath a stationary work table}

B28D 5/028 ・・・{with a ring blade having an inside cutting edge}

B28D 5/029 ・・・{with a plurality of cutting blades}

B28D 5/04 ・by tools other than rotary type, e.g. reciprocating tools {(B28D 5/0005 takes precedence)}

B28D 5/042 ・・{by cutting with blades or wires mounted in a reciprocating frame}

B28D 5/045 ・・{by cutting with wires or closed-loop blades (B28D 5/042 takes precedence)}

B28D 5/047 ・・{by ultrasonic cutting (using abrading substances or abrading tools subjected to a bouncing action by ultrasonic energy B24B 1/04)}

B28D 7/00 Accessories specially adapted for use with machines or devices of the preceding groups {(B28D 5/0058 takes precedence)}

B28D 7/005 ・{Devices for the automatic drive or the program control of the machines}

B28D 7/02 ・for removing or laying dust, e.g. by spraying liquids; for cooling work

B28D 7/04 ・for supporting or holding work {or conveying or discharging work (B28D 1/047, B28D 5/0041, B28D 5/0052 take precedence)}

B28D 7/043 ・・{the supporting or holding device being angularly adjustable}

B28D 7/046 ・・{the supporting or holding device being of the vacuum type}