Home Upright piano Cutaway action of a upright Terms

Cup-headed bolt/ cup bolt

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Upright piano
Upright piano components
Side Arm Cover Pinblock Grip Handle Soundboard Belly bars Iron frame Tuning Pins Strings Treble Bridge Pinblock Braces Pinblock Fill Piece Post Cap Back frame side brace Soundboard Brace
Cutaway view of a upright
Bottom door / bottom frame Bottom rail, plinth / pedal rail Column / leg Toe (-block) / toe block Support-block / coaster block Key-bottom / key bed, keybed Lock-rail, Lock-board / keyslip, key slip Name-board Fall / fall (board) Upper panel / music panel Lid, top Lid-prop / lid prop, topstick Lid-prop cup (rosette) / topstick rosette Upper and lower music-desk Music-desk hinge Lock-escutcheon / Keyhole escutcheon Natural Sharp Iron Frame / plate Half-blow arm or crank Frame cross-member/ horizontal plate strat or bar Key-bottom or key-bed support / keybed support Soft pedal Sostenuto or céleste pedal / muffler pedal Sustaining pedal Pedal-bolt / pedal prop pedal-prop bolt Pedal-rail-nut / pedal- prop nut Pedal-rail / trap lever for sustaining pedal Pedal-rod for sustaining pedal / pedal rod, dowel Pedal-rail / trap lever for soft pedal Pedal-rod / pedal rod, dowel for soft pedal Steel / plain-wire strings Hitch-pins Treble or long bridge / treble bridge Covered, spun or bass strings / wound, wrapped or bass strings Bass cheek-block or key-block / bass keyblock Lever, wippen / w(h)ippen Hammer Hammer (-rest) rail Half-blow-rail flange Bass action standard / bass action bracket Middle action-standard / middle action bracket Action-standard-bolt nut / action bracket bolt nut Mounting-pin for upper panel / music panel Fall pivot pin / fall (board) pivot pin Cheek / arm Wrest-pins / tuning pins Wire-bearing / V-bar wire Bass V-bar Nameplate Mounting-block for céleste-cable, for mufler cable
Cutaway action of a upright
Wrest-plank/pinblock pin block Wrest-plank screw/ plate screw Wrest-pin/tuning pin Wrest-pin/tuning pin bushing String Bearing-felt / stringing or counter-bearing felt Pressure-bar Pressure-bar screw V-bar, iron bridge, top bridge/V-bar Sound-board brace / liner Sound-board, sounding-board, belly/soundboard Sound-board brace, bearing-piece, shim packing/plate shim Wrest-plank cover / pinblock cover (Iron) frame / plate Action-standard bolt / action-bracket bolt Action-standard/ action bracket Action-standard nut/ action-bracket-bolt nut Action-standard locating foot/ action-bracket pivot Cup-headed bolt/ cup bolt Bushing for cup-headed bolt / for cup-bolt socket Nut for cup-headed bolt / cup-bolt locknut Washer Capstan(-)screw Hammer-rail beam, butt- rail / action rail Butt-rail strengthening-angle / action-rail reinforcement Lock-rail, lock-board / keyslip, key slip Lock-rail screw/ keyslip screw Lock-rail setting-screw / keyslip set screw Key-bottom, key-bed / keybed, key bed Front-rail / front rail Balance-rail / balance rail Front washer, front rail washer / front-rail punching Front-pins, bat-pins / front-rail pins Front key(-)bushings Balance-pins / balance-rail pins Centre key-bushings / key-button bushings Balance-washers, balance-rail washers / balance-rail punchings (Key-)chase / key-button central Key(-)numbers Back-touch (baize) / back-rail-strip Natural Sharp Key(-)top for Natural Key(-)front for Natural Key(-)lead Point for measuring weight and blow / down- and up-travel weight Lever, wippen / w(h)ippen Pilot-cloth / w(h)ippen cushion Lever centre-pin / w(h)ippen center pin Lever-flange / w(h)ippen flange Lever-flange screw / w(h)ippen-flange screw Locating-wire for lever flange / w(h)ippen flange for Lever-flange Damper(-)spoon Damper(-)rod Damper-rod hinge / damper rod hinge or hanger Damper-tail cloth or covering / damper-lever felt Damper-lift regulating screw / damper-lever set or regulating screw Damper-rod lever for 67 / damper-rod tongue Damper-stem, damper body / damper lever Damper-stem wire / damper wire Damper(-)drum (if cylindrical), damper(-)block Damper-drum screw, damper block screw Damper(-)head Damper-head felt / damper felt Damper-slap-rail or check-rail / spring or damper stop rail Damper-check-rail cloth / spring-rail felt, damper-stop-rail felt Damper-flange, damper-stem flange / damper-lever flange Screw for damper-lever flange Centre / center pin for damper-lever flange Damper(-)spring Damper-spring bushing Hammer(-)butt Hammer(-)butt spring Hammer-butt-spring loop (cord) Hammer-butt-spring(-cord) bushing Hammer-butt flange, butt(-)flange Hammer center / Center pin Hammer-butt plate, butt(-)plate (Hammer-)butt-notch pad or (hammer-)butt-cloth and (hammer-)butt leather Balance-hammer / back stop, catcher, butt check, butt heel Leather/buckskin for back stop (Bridle-)tape, tie-tape/bridle strap (Bridle-)tape or tie-tape end / bridle-strap tip Bridle-wire, tie-tape wire / bridle wire Jack Hammer-butt cushion Jack spring Jack flange Jack center pin Jack stop rail Set or regulating screw for Jack stop rail Set-off button / regulating button Set-off screw / regulating screw Set-off rail / regulating rail Forked set-off stay, fork-screw, pin-rail stay Check / back check Check felt / back-check felt Check wire / back-check wire Hammer shank Hammer molding Hammer top felt Hammer rest rail Half-blow rest-felt Fastening-screw for Hammer rest rail Half-blow (-rest) rail, hammer half-blow rest Hammer-rest baize, half-blow-rail cloth Half-blow (-rail) flange Centre / center pin for flange Half-blow(-rail) crank or arm
Grand piano
Side components
Rim Key-bottom, key-bed Leg top-block / console Leg Leg-cup and castor / caster with legferrule Lyre(-)post Lyre(-)box Lyre-stay, lyre back-stay / lyre brace Una-corda pedal Sostenuto pedal Sustaining or forte pedal Left pedal(-)rod Middle pedal(-)rod Front(-)top or (-)lid Top or lid lock-rail / log, top bar Top, lid Lid-prop cup / lid-prop rosette, topstick cup or rosette Long top(-) or lid(-)prop / long topstick Short(-)top or lid(-)prop / short topstick Top(-) or lid(-)hinge Music(-)desk Music(-)shelf Lock(-)rail Fall / fall (board) Fall- or name-transfer Fall felt strip / name-board felt Bass cheek- or key-block Key-rail / keys lip, key slip Naturals Sharps (Iron) frame / plate Bench(-)top Bench(-)rim Bench(-)legs
Bottom components
(Outer) rim Sound-board, sounding-board, belly Serial number (Belly-)bars, ribs Sound(-)board buttons Braces Brace(-)board Bottom spa Bottom-spa screw Legs Castors Leg top-blocks (Leg-)top-block screws shift(er)-lever (bearing) block Una-corda lever Trapwork(-)lever Trapwork-lever side-block Right peda(-)rod Middle pedal(-)rod Sostenuto(-)lever Left pedal(-)rod Sustaining or forte pedal Sostenuto pedal Una-corda pedal pedal box Pedal pivot(-)rod Lyre(-)post Lyre back-stay Lyre top(-)block key-bed keybed
Top components
Nameplate String bearing(-)felt Treble soundboard edge(-)strip Hitch(-)pins Treble bridge Bass bridge Bass-bridge platform Bass-bridge sole-piece Bass strings pressure or capo d'astro bar counter-bearing felt Agraffes, (stringing) studs Bass dampers Treble dampers Damper-guide rail Treble key- or cheek-block Bass-key- or cheek-block Natural Sharp front bar or rail Music-shelf slide Topguide(-)pin Top(-) or lid(-)hinge Keyboard(-)guide for shift(er) Lock (Lid-or top-)prop hinge-block/ lid-prop or topstick pivot block plate screws (at the pinblock) keyslip, key slip (Iron)Frame Pillar-bolts (Iron-)frame screws
Cutaway action of a grand piano
(Outer)rim Lock pull-down and sleeve fall (board), damping spring fall (board) Key- or cheek-block Rubber button for 105 Key-bottom, key-bed key-bottom rail Cross(-)block, belly-rail Thread for leg(-)screws Screw for 105 Washer for 112 Lock-washer for 112 Wrest-plank, wrest-lock Swrest pin bushing Tuning pin stringing felt Half-round bearing for strings plate screw (at the pinblock) String Sound-board support-block (Belly-)bar, rib Bridge Bridge(-)cap Bridge(-)pins (Key-)chase Key(-)top Key(-)front (Key(-)frame) front-rail (Key(-)frame) balance-rail (Key(-)frame) back-rail back-rail cloth, back touch (baize) Damper-lift-felt front-rail punchings Balance-(rail) washers Front-(rail) pins, bat pins Balance-(rail) pin Key-check rail back-check wire back check back-check inner felt back-check buckskin Key-frame-guide adjusting screw Key- check-rail support screw Key-check-rail locknut Key-check-rail felt Guide Pin for keyboard Shift Guide recess keyboard shift  capstan block Action-standard Action-standard screw Lever- or wippen-rail Hammer-flange rail Set-off(-dolly) rail Lever-heel box-cloth w(h)ippen heel Lever, wippen / whippen Lever or wippen centre-pin w(h)ippen-flange locating wire w(h)ippen-flange screw Lever-spring, wippen-spring Lever-spring bushing-cord, wippen-spring bushing-cord Lever- or wippen-spring loop-cord Repetition-lever flange Repetition-lever centre pin Repetition-spring-regulating-screw Jack regulating(-)button Jack-regulating-button stop Jack regulating(-)screw Jack Jack centre pin Repetition-lever regulating(-)screw punching for repetition-lever regulating button Tongued glide-head for 417 Repetition(-)lever Repetition-spring bushing(-)cord Repetition(-)spring Repetition-spring slot in jack jack cushion felt repetition-lever or drop-screw buckskin Drop(-)screw Hammer(-)flange Layer of sandpaper Hammer-flange locating(-)pin Hammer-flange screw Hammer-shank centre-pin Roller insert strip Hammer shank or knuckle (Hammer-shank-)roller leather Hammer(-)head Hammer(-)felt regulating-button-wire regulating button regulating-button punching Hammer-rest-rail-support screw Hammer-rail-support regulating(-)nut hammer-rest-rail felt Damper-lever rail Damper-lever flange Damper-lever-flange-screw Damper-lever-flange centre pin Damper(-)lever Damper(-)lever centre-pin Damper-lever adjusting screw Damper-lever-wire flange Damper-wire screw Damper(-)wire Damper-head trim(-)felt Damper(-)felt Damper-guide-rail block Damper-guide-rail bushing Damper-check rail damper stop-rail screw Damper-check-rail felt Damper-lift rail Damper-lift-rail felt Damper-lift-rail hinge Damper-lift rod