Knight's Mechanical Encyclopedia, R., Rhe′o-stat.

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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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Rhe′o-stat.

（Electro-magnetism.) An instrument for regulating or adjusting a circuit so that any required degree of force may be maintained.

Wheatstone's rheostat (Fig. 4311) consists of two cylinders, one of brass and the other of nonconduct-ing material so arranged that a copper wire can be wound from one to the other by turning a shiftable handle. The surface of the non-conducting cylinder has a screw-thread by which the successive convolutions of wire are isolated. Being introduced into a circuit, the wire is wound on or off the threaded cylinder by which the resistance is determined, the brass cylinder being so large that its resistance is not considered. In the upper figure, the current is [1935] shown as traversing a galvanometer a, the rheostat b, and the conductor c, the resistance of which is to be measured. The whole wire being wound on the brass cylinder, the deflection of the galvanometer is noted, the conductor c is withdrawn from the circuit, and the ends d e directly connected; the amount of wire on the non-conducting cylinder when the galvanometer indicates an equal deflection, shows the strength of the resistance c.

1877.

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