Knight's Mechanical Encyclopedia, O., Old-sand.

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19th-Century American

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chapter : entry
entry

Table of Contents:

Oar-pro-pel′ler.

Ob′ject-find′er.

Ob′ject-glass.

Ob′ject-staff.

Ob-lique′ arch.

Ob-serv′a-to-ry.

Ob-stet′ri-cal chair.

Ob-stet′ri-cal For′ceps.

Ob-stet′ri-cal In′stru-ments.

Ob-stet′ri-cal Sup-port′er.

Oc′tave flute.

Oc-to-dec′i-mo.

Oc′u-lar; Oc′u-laire .

O-don′ta-gra.

O-don′to-graph.

Oe-nom′e-ter.

Of′fal-dry′er.

Of′fice-chair.

Of′fice-tel′e-graph.

O-gee — plane.

Oil-cab′i-net.

Oil-car′ry-ing Ves′--sel.

Oiled Leath ′er.

Oiled Pa′per.

Oil-ex-tract′ing Appa-ra′tus.

Oil-gild′ing.

Oil-leath′er.

Oil-paint′ing.

Oil-re-fin′ing Appa-ratus.

Oil-well Pack′ing.

Oint′ment-syr′inge.

Old′hams Coup′ling.

O′le-o-mar′ga-rin.

O′le-om′e-ter.

Om-brom′e-ter.

O-pal′o-type.

O-paque — disk re-volv′er.

Op′ei-o-scope.

O′pen-ing-bit.

O′pen-ing-knife.

O′pen-ing-ma-chine.

O′pen-sand Mold′ing.

Op′e-ra-glass.

Ope-ram′e-ter.

Op′er-ating-ta′ble.

Oph′i-cleide.

Ophthal-mo-di-as-tim′e-ter.

Ophthal-mom′e-ter.

Oph-thal′mo-scope.

Oph-thal′mo-state.

Ophthal-mox-ys′trum.

Opsi-om′e-ter.

Op′ti-cal In′stru-ments.

Op′ti-cal square.

Op′ti-cal Tel′e-graph.

Op′ti-cal toys, scenes , and Effects .

Op-tom′e-ter.

Or′bit-sweep′er.

Ore-appa-ra′tus.

Ore-cal′cin-ing Furnace.

Ore-con′cen-trator.

Ore-crush′er.

Ore-fur′nace.

Ore—roast′ing Fur′nace.

Ore—sep′a-rator.

Ore—smelt′ing Fur′nace.

Ore—wash′er.

Or′gan—coup′ler.

Or′gan—har-mon′i-con.

Or′gan—loft.

Or′gan—pipe.

Ori-en-ta′tion.

O′ri-ent-ator.

Or′leans cloth.

Or′mo-lu′—var′nish.

Or′tho-graph.

Or-tho-scop′ic lens.

Or-tho-pae′dic Ap-pa-ra′tus.

Os′cil-lat-ing—cyl′in-der Steam—en′gine.

Os′cil-lat-ing—pis′ton Steam—en′gine.

Os′cil-lat-ing pump.

Os′cil-lat-ing Pump—spear.

Os′cil-lat-ing valve.

O′si-er—peel′er.

Os′le-on—i′ron.

Os-mom′e-ter.

Os′mund Furnace.

Os-te′o-tome.

Ot-a-cous′tic.

Out′burst-bank.

Out′side car.

Out′side Bel′ly-band.

O′val Com′pass.

O-ver-cast′ing.

O′ver-check Bri′dle.

O′ver-check rein.

O′ver-flow-ba′sin.

O-ver-head′--crane.

O-ver-head′--gear.

O-verhead′--mo′--tion.

O-ver-head′--rein.

O-ver-head′ steam-en′gine.

O-ver-heat′ing-pipe.

O-ver-lap′--joint.

O-ver-reach′ing de-vice′.

O-ver-sail′ing.

O-ver-seam′ing.

O′ver-shot-wheel.

O′vo-lo-plane.

Ox ′i-diz-ing-fur′nace.

Ox-y-cal′ci-um-light.

Ox-y-ge-na′tor.

Ox ′y-gengas Appara′tus.

Ox-y-hy′dro-gen Blow′pipe.

Ox-y-hy′dro-gen lamp.

Ox-y-hy′dro-gen light.

Ox-y-hy′dro-gen Mi′cro-scope.

Oys′ter-dredge.

Oys′ter-knife.

Oys′ter-o′pen-er.

Oys′ter-rake.

Oys′ter-shell Crack′er.

Oys′ter-tongs.

O′zone-appa-ra′tus.

O-zo-nom′e-ter.

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Old-sand.

（Founding.) The sand forming the floor of the molding-shop to the depth of two or three feet, and filling the deep pits under the cranes. It is generally quite black, is weak and friable, and unfit for the face of any mold. On the other hand, its porous character makes it well suited for filling the flasks over the facing-sand.

1877.

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