Knight's Mechanical Encyclopedia, R., Re-fin′ing-hearth.

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19th-Century American

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Table of Contents:

Rab′bet-ed lock.

Rab′bet-ing–ma-chine′.

Rab′bet–joint.

Rab′bet–plane.

Rab′bet–saw.

Race–sad′dle.

Rach′i-o-tome.

Rac′ing–bit.

Rack-and-pinion jack.

Rack-and-pin′ion press.

Rack-and-pin′ion pro-pel′ler.

Rack-cal′i-pers.

Rack-com′pass.

Rack′et-wheel.

Rack′ing-can.

Rack′ing-cock.

Ra′di-al Drill′ing-ma-chine′.

Ra′di-al-pis′ton Wa′ter-wheel.

Ra′di-al Plan′ing-ma-chine′.

Ra′di-a′tor.

Radi-om′e-ter.

Ra′di-us-bar.

Ra′di-us-rod.

Rag-cut ′ting ma-chine′.

Rag′ging-ham′mer.

Rail and Trav′ers-ing-wheel pro-pel′ler.

Rail-bend ′er.

Rail-coup′ling.

Rail-drill′ing ma-chine′.

Rail-post; rail′ing-post .

Rail-straight′en-ing ma-chine′.

Rail′way-brake.

Rail′way-buf′fer.

Rail′way-car.

Rail′way-car Heat′er.

Rail′way-car stove.

Rail′way-chair.

Rail′way cut-off saw.

Rail′way Engi-neer′ing and plant.

Rail′way-frog.

Rail′way-gage.

Rail′way-gate.

Rail′way-jack.

Rail′way-joint.

Rail′way-plow.

Rail′way Print′ing-ma-chine′.

Rail′way-saw.

Rail′way-sig′nal.

Rail′way-slide.

Rail′way speed-meas′ur-er.

Rail′way-sweep′er.

Rail′way-switch.

Rain-cham′ber.

Raised up-on′.

Rais′ing-board.

Rais′ing-gig.

Rais′ing-ham′mer.

Rais′ing-knife.

Rais′ing-plate.

Rais′ing Sunk′en Ves′sels.

Rais′in-seed′er.

Rak′ing-mold′ing.

Rak′ing-pie′ces.

Ram′pant arch.

Rams′den's eye-piece.

Rand-form′ing ma-chine′.

Rand ′ing-ma-chine′.

Rand ′ing-tool.

Raph′i-an-kis′tron.

Ras ′ing-i′ron.

Raspa-to′ri-um.

Rasp′a-to-ry.

Rasp′ing-ma-chine′.

Rasp′ing-mill.

Ratch′et bed-key.

Ratch′et-brace.

Ratch′et-jack.

Ratch′et-punch.

Ratch′et-wheel.

Ratch′et-wrench.

Rat-tan′--ma-chin′er-y.

Rav′el-ing-en′gine.

Ra′vens-duck.

Ra′zor-pa′per.

Re-ac′tion Wa′ter-wheel.

Read′ing-glass.

Read′y Reck′on-er.

Re′al Ra′di-us.

Ream′ing-bit.

Ream′ing-i′ron.

Reap′er-knife Grind′er.

Reap′ing-hook.

Reap′ing-ma-chine′.

Rear′ing-bit.

Rea ′son-piece.

Reau′mur Ther-mom′e-ter.

Re-bolt′ing-ma-chine′.

Re-ceiv′ing-mag′net.

Re-cip′i-an′gle.

Re-cip′ro-cating-en′gine.

Re-cip′ro-cating-pro-pel′ler.

Re-clin′ing-chair.

Re-coil′--es-cape′ment.

Re-cord′ing-gage.

Re-cord′ing-tel′e-graph.

Recti-fi-ca′tion.

Rec ′ti-fier.

Red brick-dust.

Red-short I′ron.

Red Tom ′bac.

Re-duc′ing-fur′nace.

Re-duc′tion-com′pass-es.

Reef-pen′dant.

Reef-tack′le.

Reel′ing-ma-chine′.

Reem′ing-bee′tle.

Reem′ing-i′ron.

Re-en′ter-ing.

Re-en′ter-ing-an′gle.

Re-fin′ing-fur′nace.

Re-fin′ing-hearth.

Re-flect′ing-cir′cle.

Re-flect′ing-galva-nom′e-ter.

Re-flect′ing-lev′el.

Re-flect′ing-mi′cro-scope.

Re-flect′ing-tel′e-scope.

Re-fract′ing-tel′e-scope.

Re-frac′tion-cir′cle.

Re-frac′to-ry.

Re-frig′er-ating-cham′ber.

Re-frig′er-ator.

Re-frig′er-ator-car.

Re-frig′er-a-to-ry.

Re-gen′er-ating-fur′nace.

Re-gen′er-a-tor.

Reg ′is-ter-point.

Reg ′is-ter-ing–ther-mom′e-ter.

Reg ′let–plane.

Reg ′u-lating–screw.

Reg ′u-lator.

Reg ′u-lator–box.

Re-heat′ing–fur′nace.

Re-in-force–ring.

Rein–hold′er.

Reis ′ner–work.

Re-lay–mag′net.

Re-lief′–valve.

Re-liev′ing–arch.

Re-liev′ing–tack′le.

Re-lief′–line En-grav′ing.

Re-lief′–pro′cess.

Re-mon′toir–es-cape′ment.

Ren′der-ing–appa-ra′tus.

Re-peat′ing–cir′cle.

Re-peat′ing Fire–arm.

Re-peat′ing–watch.

Re-plac′ing–switch.

Re-pous-se′– work.

Re-press′ing–ma-chine′.

Re-press′ing–press.

Re-saw′ing–ma-chine′.

Re-serve′–style.

Res′er-voir–stove.

Re-sid′u-a-ry–gum.

Re-sist′ance-box.

Re-sist′ance-coil.

Res′pi-ra′tor.

Res′tau-rant-car.

Re-tain′ing-wall.

Re-tic′u-lat′ed glass.

Re-tic′u-lated mi-crom′e-ter.

Re-tic′u-lated work.

Re-ticu-la′tion.

Re-ticu-la′tum.

Re-tired′ flank.

Re-tort′--scal′er.

Re-tort′--stand.

Re-touch′ing-ta′ble.

Re-trench′ment.

Re-tro-ver′sion-in′stru-ment.

Ret′ting, Rot′ting , Rat′ing .

Re-turn′--flue Boil′er.

Re-turn′--valve.

Re-ver′ber-a-to′ry-fur′nace.

Re-versed′ arch.

Re-versed′ curve.

Re-versed′ O-gee′.

Re-verse′--valve.

Re-vers′i-ble Fil′--ter.

Re-vers′i-ble lock.

Re-vers′i-ble mouth-bit.

Re-vers′i-ble plow.

Re-vers′i-ble seat.

Re-vers′ing-coun′ter-shaft.

Re-vers′ing-gear.

Re-vers′ing-han′dle.

Re-vers′ing-mo′tion.

Re-vert′ing-draft.

Re-volv′ing-boil′er.

Re-volv′ing-brush.

Re-volv′--ing-car.

Re-volv′ing-cyl′in-der steam-en′gine.

Re-volv′ing-fur′nace.

Re-volv′ing-grate.

Re-volv′ing-ham′mer.

Re-volv′ing-har′row.

Re-volv′ing-light.

Re-volv′ing-ov′en.

Re-volv′ing-pan mill.

Re-volv′ing-press.

Re-volv′ing-sun.

Re-volv′ing-tow′er.

Rhe-om′e-ter.

Rhe-o-mo′tor.

Rhino-plas′tic knife.

Rhino-plas′tic pin.

Rhi′no-scope.

Rhy-sim′e-ter.

Ri-ba-do′quin.

Rib′band-lines.

Rib′band-shore.

Rib′bing-nail.

Rib′bon-brake.

Rib′bon-loom.

Rib-vault′ing.

Rice-hull′er.

Rice-plan′er.

Rice-pound′ing ma-chine′.

Rico-chet′--shot.

Ridge-fil′let.

Ridg′ing-plow.

Rid′ing-bitts.

Rid′ing-part.

Right-hand rope.

Right-line pen.

Ri-li-e′vo; re-lief′ .

Rim-plan′ing ma-chine′.

Ring and Trav′el-er Spin′--ning-frame.

Ring′ing-en′gine.

Ring-mi-crom′e-ter.

Ring-spin′ner.

Ring-tail boom.

Ring-tum′bler.

Rins′ing-ma-chine′.

Rip ′ping-bed.

Rip ′ping-chis′el.

Rip ′ping-i′ron.

Rip ′ping-saw.

Rip ′ping-tool.

Ris′ing-an′vil.

Ris′ing-arch.

Ris′ing-floors.

Ris′ing-hinge.

Ris′ing-line.

Ris′ing-main.

Ris′ing-square.

Ris′ing-wood.

Riv′et-cut′ter.

Riv′et-hearth.

Riv′et-ing-forge.

Riv′et-ing-ham′mer.

Riv′et-ing-ma-chine′.

Riv′et-ing-set.

Riv′et-joint.

Riv′et-ing-tools.

Riv′et-mak′ing ma-chine′.

Riv′ing-knife.

Riv′ing-ma-chine′.

Road-loco-mo′tive.

Road-roll′er.

Road-scrap′er.

Road-steam′er.

Roast′ing-bed.

Roast′ing-fur′nace.

Roast′ing-jack.

Roch ′ing-cask.

Rock-bor′--ing ma-chine′.

Rock-crush′er.

Rock-drill′ing ma-chine′.

Rock′er-shaft.

Rock′et-drift.

Rock′et-har-poon′.

Rock′ing-chair.

Rock′ing-ham-ware.

Rock′ing-tree.

Rock-pul′ver-izer.

Rod-coup′ling.

Rod, pin, and Dow ′el ma-chine′.

Roll and Fil′let.

Roll-blot′ter.

Roll-boil′ing.

Roll′er-bar′row.

Roll′er-bowl.

Roll′er-lift.

Roll′er-lock.

Roll′er-mill.

Roll′er-mold.

Roll′er-stock.

Roll-grind′ing ma-chine′.

Roll′ing-bar′rel.

Roll′ing-bridge.

Roll′ing-cam press.

Roll′ing-chocks.

Roll′ing-col′--ter.

Roll′ing-frame.

Roll′ing-hitch.

Roll′ing Met′als.

Roll′ing-mill.

Roll′ing-mill train.

Roll′ing-pen′du-lum.

Roll′ing-pin.

Roll′ing-press.

Roll′ing-press′ure press.

Roll′ing-stock.

Roll′ing-tack′le.

Roll-mold′ing.

Ro′man Bal′ance.

Ro′man-can′dle.

Ro′man-cem′ent.

Ron-geant′ style.

Roof′ing-ma-chine′.

Roof-seam′ing ma-chine′.

Roof-stag′ing.

Room and space staff.

Root-bruis′er.

Root-dig′ger.

Root-grind′--er.

Root-pulp′er.

Root-wash′er.

Rope El′e-vator.

Rope Lad′der.

Rope-ma-chine′.

Rope–por′ter.

Rope–rail′way.

Rope–trac′tion pro-pel′ler.

Rop′ing-nee′dle.

Rose–di′a-mond.

Rose–en′gine lathe.

Rose Gas–burn′er.

Rose–lash′ing.

Ross ′ing–ma-chine′.

Rost ′horn's Gun–met′al.

Ro′ta-ry Bat′ter-y.

Ro′ta-ry Blow′er.

Ro′ta-ry brush.

Ro′ta-ry crane.

Ro′ta-ry Cul′ti-va — tor.

Ro′ta-ry cut-ter.

Ro′ta-ry Cut′ting-ma-chine′.

Ro′ta-ry Dig′ger.

Ro′ta-ry En′gine.

Ro′ta-ry fan.

Ro′ta-ry Har′row.

Ro′ta-ry Me′ter.

Ro′ta-ry Ov′en.

Ro′ta-ry plow.

Ro′ta-ry Pud′dler.

Ro′ta-ry pump.

Ro′ta-ry Shap′er.

Ro′ta-ry shears.

Ro′ta-ry Sift′er.

Ro′ta-ry Spad′er.

Ro′ta-ry Steam–en′gine.

Ro′ta-ry swing.

Ro′ta-ry valve.

Rot′ ten -stone.

Rough′ing-down rolls.

Rough′ing-in.

Rough′ing-mill.

Rough′ing-rolls.

Rough-tree rail.

Round Bud′dle.

Round Chis′el.

Round-edge file.

Round′ing-adze.

Round′ing-gage.

Round′ing-jack.

Round′ing-ma-chine′.

Round′ing-plane.

Round′ing-tool.

Round-joint file.

Round-nose Chis′el.

Round-nose plane.

Round-off file.

Rouse-a-bout′ block.

Rout′er-gage.

Rout′er-plane.

Rout′ing-ma-chine′.

Rout′ing-tool

Rov′ing-frame.

Rov′ing-head.

Rov′ing-plate.

Rov′ing-reel.

Row′el-ing-nee′dle.

Row′el-ing-scis′sors.

Rub′ber Cem′ent.

Rub′ber-cloth.

Rub′ber-cut′ting ma-chine′.

Rub′ber-file.

Rub′ber-gage.

Rub′ber-knife.

Rub′ber-mold.

Rub′ber-mount′ing.

Rub′bing-paunch.

Rub′bing-stone.

Rub′ble-ma′son-ry.

Rub′ble-work.

Rud′der-band.

Rud′der-breech′ing.

Rud′der-case.

Rud′der-chain.

Rud′der-coat.

Rud′der-pen′dant.

Rud′der-port.

Rud′der-tack′le.

Ru′der-a′tion.

Ruhm′korff Bat′ter-y.

Ruhm′korff coil.

Rul′ing-ma-chine′.

Rum′bow-line.

Rum′swiz-zle.

Run′ner-ball.

Run′ner-stick.

Run′ner-tack′le.

Run′ning-block.

Run′ning-bow′line knot.

Run′ning-bud′dle.

Run′ning-gear.

Run′ning-hand.

Run′ning-knot.

Run′ning-off.

Run′ning-part.

Run′ning-rig′ging.

Run′ning-ti′tle.

Ru′pert's drop.

Rup′tur-ing-for′ceps.

Rus ′sia-duck.

Rus ′sia-leath′er.

Rus ′sia-mat′ting.

Rus ′sia sheet-i′ron.

Rusti-ca′tion.

Rus ′tic Cham′fered work.

Rus ′tic joint.

Rus ′tic Or′der.

Rus ′tic quoin.

Rus ′tic work.

Ru-the′ni-um.

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Re-fin′ing-hearth.

The copper-refining hearth has a hemispherical crucible of about 16 inches diameter, and lined with a puddle of 2 parts charcoal, 1 part clay. It is partly surrounded by a raised border, the open portion of which has a door to prevent the escape of the fuel. The lining is renewed before each operation, and is burnt on by a fire ignited in the crucible before charging with the fresh charcoal and pieces of black copper. The blast being let on and the copper fused, metal and fuel are added from time to time, the scoriae being let off by a side-channel.

Copper-refining hearth.

Sulphurous acid escapes and other volatile ingredients, if present. When the operation is complete the workman stops the blast, throws water on the hearth, rakes back the scoriae with his rabble, and throws water on the metal, which congeals a thick film on the surface; this is of a red color, and is known as a rosette, the metal being rose-copper, and obtained by successive quenching and removal of the rosettes.

A farther refining, to reduce the suboxide of copper and obtain malleable metal, is conducted in a crucible covered with small charcoal and placed in a hearth similar to the foregoing. [1908]

1877.

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