Knight's Mechanical Encyclopedia, D., Diffe-ren′tial Pul′ley.

Home Collections/Texts Perseus Catalog Research Grants Open Source About Help

Hide browse bar Your current position in the text is marked in blue. Click anywhere in the line to jump to another position:

This text is part of:

19th-Century American

View text chunked by:

chapter : entry
entry

Table of Contents:

Dab′bing-ma-chine′.

Dac-tyl′i-on.

Dag′ger-piece.

Dag′ger-plank.

Da-guerre′o-type.

Da-guerre′o-type Etch′ing.

Dahl ′gren gun.

Da-mas′cus-i′ron.

Da-mas′cus-twist.

Dam′ask-car′pet.

Dam′ask-loom.

Dam′ask-steel.

Damp′per-reg′u-la′tor.

Damp′ing-ma-chine′.

Dan ′dy-brush.

Dan ′dy-horse.

Dan ′dy-rig cutter.

Dan ′dy-roll′er.

Dan ′iell's Bat′ter-y.

Dan ′ish Bal′ance.

Dark-glass′es.

Dark-lan′tern.

Darn′ing-last.

Darn′ing-nee′dle.

Da-sym′e-ter.

Dav ′it-fall hook.

Dead-beat es-cape′ment.

Dead-cen′ter.

Dead-col′or-ing.

Dead-let′ter.

Dead-ris′ing.

Dead-smooth file.

Dead-spin′dle.

Dead-stroke Ham ′mer.

De-bran′ning-ma-chine′.

Deca-chord′on.

De-can-ta′tion.

De-car′bon-izing-fur′nace.

Deck-feed pump.

Deck-stop′per.

Deck-tran′som.

Decli-na′tion.

Decli-na′tor.

De-clin′ing-di′al.

Decli-nom′e-ter.

De-clor-im′e-ter.

De-col′or-ing-style.

De-cor′ti-cator.

Decus-so′ri-um.

Deep-well pump.

Def ′e-cator.

De-file′ment.

Defla-gra′tion.

Def ′la-grator.

Deflec-tom′e-ter.

Deg′ging-ma-chine′.

De-lin′e-ator.

De-liv′er-ing-roll.

De-liv′er-y-roll′er.

De-liv′er-y-valve.

De Lucs Col′umn.

Dem′i-bas′tion.

Dem′i-can′non.

Dem′i-cap′on-niere.

Dem′i-cir′cle.

Dem′i-cul′ver-in.

Dem′i-par′al-lel.

Dem′i-re-lief′.

Dem′i-ri′li-e′vo.

Demi-re-vet′ment.

Dem′y-os′tage.

Den-drom′e-ter.

Denmark-sat′in.

Den-sim′e-ter.

Den′tal Appa-ra′tus and Ap-pli′an-ces.

Den′tal Ar-tic′u-lator.

Den′tal Chis′el.

Den′tal-cut Dove ′tail.

Den′tal drill.

Den′tal file.

Den′tal For′ceps.

Den′tal Ham ′mer.

Den′tal Plug′ger.

Den′tal pump.

Den′ted Chis′el.

Den′ti-scalp.

Den′tist's chair.

Den′tist's flask.

Den′tist's Fur′nace.

De-o′dor-izer.

De′phleg-ma′tor.

Depi-la′tion.

Depth′en-ing-tool.

Dep ′u-rator.

De-rail′ment.

Der′mal Instru-ments.

Der′mo-pathic In′stru-ment.

De-scend′ing-let′ter.

Desic-ca′tion.

De-sil′ver-ing.

De-sul′phur-izing Fur′nace.

De-tached′ es-cape′ment.

De-tached′ work.

De-tach′ing horses from Car′riages.

Det′on-ating-ham′mer.

Det′on-ating-pow′der.

Det′on-ating-pri′mer.

Det′o-nating-tube.

Deto-na′tion.

De-vel′op-ing.

De-vel′op-ment.

Dev′il-car′riage.

Dev′il's claw.

Dew-ret′ting.

Dia-caus′tic.

Di-aer′e-sis.

Di′a-gom′e-ter.

Di-ag′o-nal-built.

Di-ag′o-nal eye-piece.

Di-ag′o-nal Fram′ing and stays.

Di-ag′o-nal lines.

Di-ag′o-nal rib.

Di-ag′o-nal scale.

Di-ag′o-nal tie.

Di-ag′o-nal wrench.

Di′a-mond-cut′ter's Com′pass.

Di′a-mond-cutting.

Di′a-mond-draft.

Di′a-mond-drill.

Di′a-mond-gage.

Di′a-mond-head′ed bolt.

Di′a-mond-knot.

Di′a-mond-lens.

Di′a-mond-mor′--tar.

Di′a-mond-nail.

Di′a-mond-plow.

Di′a-mond-point.

Di′a-mond-point Chis′el.

Di′a-mond-tool.

Di′a-mond-work.

Di′a-per-work.

Dia-pha-nome-ter.

Dia-phano-scope.

Dia-phan′o-type.

Di′a-phragm-fau′cet.

Di′aphragmplate.

Di′a-phragm-pump.

Di′as-tim′e-ter.

Di′a-tom-prism.

Dib′bling-ma-chine′.

Die-sink′ing.

Diffe-ren′tial block.

Diffe-ren′tial Coup′ling.

Diffe-ren′tial feed.

Diffe-ren′tial Gear′ing.

Diffe-ren′tial Pul′ley.

Diffe-ren′tial screw.

Diffe-ren′tial Ther-mom′e-ter.

Diffe-ren′tial Windlass.

Dif-fu′sion-ap-pa-ra′tus.

Diffu′sion-tube.

Dig′ging-ma-chine′.

Di-lut′ing Rol′ler.

Di′en-sion Lum ′ber.

Di′men-sion stone.

Di-min′ish-ing-staff.

Di-op′tric light.

Di-op′tric mi-crom′e-ter.

Dip-head Lev′el.

Di-plei′do-scope.

Dip′ping-frame.

Dip′ping-nee′dle.

Dip′ping-pan.

Dip′ping-tube.

Di-rect′ing-cir′cle.

Di′rect-ac′tion steam-en′gine.

Di′rect-draft.

Dirt-scrap′er.

Dis-charg′er.

Dis-charge — style.

Dis-charge′--valve.

Dis-charg′ing-arch.

Dis-charg′ing-rod.

Dis′en-gag′ing-gear.

Dish-heat′er.

Dish-hold′er.

Dish-wash′er.

Disin-fect′or.

Dis-in′te-grator.

Disk steam-en′gine.

Disk-tel′e-graph.

Dis-part′--sight.

Dis-patch′--boat.

Dis-patch′--tube.

Dis-place ′ment.

Dis-sect′ed map.

Dis-sect′ing-for′ceps.

Dis-secting-knife.

Dis-sect′ing-mi′cro-scope.

Dis-solv′ing-views.

Distil-la′tion.

Dis-trib′ut-ing.

Dis-trib′ut-ing-res′er-voir.

Dis-trib′ut-ing-roll′er.

Dis-trib′ut-ing-rule.

Dis-trib′ut-ing-ta′ble.

Distri-bu′tion.

Ditch′ing-ma-chine′.

Ditch′ing-plow.

Ditch′ing-tools.

Di-ver′sion-cut.

Di-vid′ed Ax′le.

Di-vid′ed Ob′ject-glass mi-crom′e-ter.

Di-vid′ing-en′gine.

Di-vid′ing-sink′er.

Div′ing-bell.

Div′ing-bell pump.

Div′ing — dress.

Di-vis′ion-plate.

Dobe-rein′er's lamp.

Doff′ing-cyl′in-der.

Doff′ing-knife.

Dog and Driv′er chuck.

Dog-leg Chisel.

Dog-legged stairs.

Dog-stop′per.

Dol′phin-strik′er.

Do-mes′tic Ap-pli′an-ces.

Do-mestic Boil′er.

Do-mes′tic press.

Donkey-en′gine.

Don ′key-pump.

Doo ′dle-sack.

Door-a-larm′.

Door-fast′en-er.

Door-roll′er.

Door′way-plane.

Dor ′mant-bolt.

Dor ′mant-lock.

Dor ′man-tree.

Dor ′mer-win′dow.

Dor ′nock; Dor′nic .

Dot′ting-pen.

Doub′le-act′ing Bal′ing-press.

Doub′le-act′ing En′gine.

Doub′le-acting pump.

Doub′le-ac′tion.

Doub′le-bar′--reled gun.

Doub′le-bass.

Doub′le-bead.

Doub′le-beat valve.

Doub′le-bit′ted axe.

Doub′le-block.

Doub′le-bod′ied Mi′cro-scope.

Doub′le-chis′el.

Doub′le-cloth loom.

Doub′le-com′pass.

Doub′le-con′cave lens.

Doub′le-con′vex lens.

Doub′le-cut file.

Doub′le-cyl′in-der press.

Doub′le-cyl′in-der Print′ing-ma-chine′.

Doub′le-cyl′in-der pump.

Dou′ble-cyl′in-der steam-en′gine.

Doub′le-dag′ger.

Doub′le-door.

Dou′ble-d'or.

Doub′le-drill.

Doub′le-draw′ing pen.

Doub′le-drum.

Doub′le-el′e-phant.

Doub′le-ended bolt.

Doub′le-ex-pan′sion steam-en′gine.

Doub′le-faced.

Doub′le-file.

Doub′le-flu′id Bat′ter-y.

Doub′le-floor.

Doub′le-fur′row plow.

Doub′le-fut′tocks.

Doub′le-gear.

Doub′le gear-wheel.

Doub′le half-round file.

Doub′le-ham′mer.

Doub′le-head′ed rail.

Doub′le-head′ed shot.

Doub′le-head′ed wrench.

Doub′le-hung Win′dow.

Doub′le-im′age mi-crom′eter.

Doub′le-im-pe′ri-al.

Doub′le-joint′ed Com′pass.

Doub′le-knife.

Doub′le-let′ter.

Doub′le-light.

Doub′le-line.

Doub′le-lock.

Doub′le-mar′gin door.

Doub′le-me′di-um.

Doub′le-mold′board plow.

Doub′le Pi′ca.

Doub′le-piled Fab′ric-loom.

Doub′le-pis′--ton pump.

Doub′le Pis′--ton-rod En′gine.

Doub′le-pis′ton square-en′gine.

Doub′le plane-i′ron.

Doub′le-plow.

Doub′le-re-frac′tion mi-crom′e-ter.

Doub′le-roy′al.

Doub′le-seam′ing ma-chine′.

Doub′le-seat valve.

Doub′le-shov′el plow.

Doub′le-speed Pul′ley.

Doub′le Su′per-roy′al.

Doub′le steam-en′gine.

Doub′le-tang file.

Doub′le-tree.

Doub′le Wa′ter-wheel.

Doub′le-win′dow.

Doub′ling and Twisting ma-chine′.

Doub′ling-frame.

Doub′ling-nail.

Dough-knead′er.

Dough-mix′er.

Dous′ing-chock.

Dove ′tail-box plane.

Dove ′tail-cut′ter.

Dove ′tailhinge.

Dove ′tail-ing-ma-chine′.

Dove ′tail-joint.

Dovetail-mark′er.

Dove ′tail-plane.

Dove ′tail-wire.

Dow ′el-ing-ma-chine′.

Dows ′ing-chock.

Down′ward-dis′charge Wa′ter-wheel.

Draft-en′gine.

Draft-e′qual-izer.

Draft-fur′nace.

Drafting Instru-ments and Ap-pli′ances.

Draft′ing-scale.

Draft-reg′u-lator.

Drag-an′chor.

Drag′on-beam.

Drain′ing-au′ger.

Draining-engine.

Drain′ing-ma-chine′.

Draw; draw′ing .

Draw—bor′ing.

Draw′—bridge.

Draw′er—lock.

Draw—fil′ing.

Draw–gage Cut′ter.

Draw′ing—bench.

Draw′ing—board.

Drawing—com′pass.

Draw′ing—frame.

Draw′ing—in.

Draw′ing—knife.

Draw′ing—ma-chine′.

Draw′ing—paper.

Draw′ing—pen.

Draw′ing—pen′cil.

Draw′ing—pin.

Draw′ing—pli′ers.

Draw′ing—point.

Draw′ing—rol′ler.

Dread′naught.

Dredging—ma-chine′.

Drench′ing—ap-pa-ra′tus.

Drenching—horn.

Dres′ser—cop′per.

Dress′ing—bench.

Dress′ing—machine′.

Drift—anchor.

Drill-bar′row.

Drill-ex-tract′or.

Drill-grind′ing ma-chine′.

Drill-har′row.

Drill-hold′er.

Drill′ing-jig.

Drill′ing-lathe.

Drill′ing-ma-chine′.

Drill-rod grab.

Drill-spin′dle.

Drip′ping-vat.

Driv′en-well.

Driv′en-well pump.

Driv′ing-ax′le.

Driv′ing-bolt.

Driv′ing-chis′el.

Driv′ing-gear.

Driv′ing-rein.

Driv′ing-shaft.

Driv′ing-springs.

Driv′ing-wheel.

Droitzsch′ka.

Drop-flue Boil′er.

Drop-ham′mer.

Drop′ping-tube.

Drop-roll′er.

Drown′ing-bridge.

Drug-sift′er.

Drum Cyl′in-der-press.

Drum′mond light.

Drunk′en-cut′ter.

Dry-cast′ing.

Dry-gild′ing.

Dry-grind′ing.

Dry′inghouse.

Dry′ing-ma-chine.

Dry′ing-room.

Dry′ing-stove.

Dub′bing-out.

Dub′bing-tool.

Ducks-bill bit.

Ducks-foot pro-pel′ler.

Duc ′ti-lim′e-ter.

Duc-til′i-ty.

Duc ′tor-roll′er.

Dumb-fur′nace.

Dumb-wait′er.

Dumb-sin′--gles.

Dump′ing-buck′et.

Dump′ing-car.

Dump′ing-cart.

Dump′ing-reel.

Dump′ing-sled.

Dump′ing-wag′on.

Dump′y-lev′el.

Duo-dec′i-mo.

Duplex-es-cape′ment.

Du′plex-lathe.

Duplex Pump′ing-engine.

Du′plex-punch.

Du′plex-tel′egraph.

Du′plex-type.

Du-rom′e-ter.

Dust′ing-brush.

Dutch Clink ′er.

Dwarf-raft′er.

Dy′ers — bath.

Dy′ers Spir′it.

Dye-wood Cut′ter.

Dy-nacti-nom′e-ter.

Dy-nam′e-ter.

Dyna-mom′e-ter.

Dyna-mo-met′ri-cal-brake.

view as XML

Diffe-ren′tial Pul′ley.

This, in a somewhat clumsy form, has been known for centuries under the name of the Chinese windlass, and one was found by the allied English and French armies to be in use for raising one of the drawbridges in the city of Pekin. It was described by Dr. Carpenter in his “Mechanical philosophy,” etc., 1844.

The chain winds over two drums of different diameters, winding on to one as it unwinds from the other; the effect gained is as the difference between the two, the smaller the difference the greater the power and the less the speed.

Differential Pulleu.

Differential pulley.

In the geared differential pulley the effect is produced by making one more tooth in one of the wheels the chain passes over than in the other.

Differential screw.

1877.

Tufts University provided support for entering this text.

view as XML

This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 United States License.

An XML version of this text is available for download, with the additional restriction that you offer Perseus any modifications you make. Perseus provides credit for all accepted changes, storing new additions in a versioning system.