Cork insulation; a complete illustrated textbook on cork insulation ...

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172 CORK INSULATION test consists of boiling a piece of <strong>insulation</strong> <strong>complete</strong>ly submerged for three hours at atmospheric pressure without its disintegrating and without its expanding more than two per cent in any direction. Pure corkboard of standard quality easily meets the requirements of this test, merely demonstrat- ing in a simple laboratory way that corkboard <strong>insulation</strong> is proof against deterioration in service from the destructive action of moisture that is ever present at cold storage temperatures. 83.—Sanitary and Odorless.—Any insulating material employed at cold storage temperatures usually encounters foodstuffs, and should therefore be perfectly sanitary and free from mold, rot, appreciable odor or vermin. For these reasons any <strong>insulation</strong> in which binders are used, especially pitch, is dangerous, since the delicacy of many foodstuffs makes them peculiarly susceptible to tainting and contamina- tion. Pure corkboard contains no foreign binder of any charac- ter and the cork bark of which it is composed is inherently moisture-proof. Therefore it will not rot, mold or give off offensive odors ; and if corkboard is properly erected, it is vermin-proof. Cold storage rooms insulated with pure corkboard, and finished with Portland cement troweled smooth, as recommended by the United States Department of Meat In- spection, are easily and indefinitely kept in sanitary and hy- gienic condition by ordinary washing and cleansing methods. The sanitary and odorless qualities of an <strong>insulation</strong> for cold storage temperatures are of very real importance, and pure corkboard is easily the standard by which all cold storage insulating materials are judged. 84. — Compact and Structurally Strong.— It has been noted that a particle of cork bark is made up of a myriad of tiny sealed air cells, separated from each other by thin walls of tissue of very low density, each cell containing a microscopic bit of air. In the manufacture of pure corkboard. of standard specifications, the particles of cork bark are sufficiently com- pressed in the molds to eliminate the voids between the
I it REQUIREMENTS OF AN INSULATION 173 particles, which produces a finished material of maximum compactness in relation to weight and insulating value. This compactness is an essential quality of pure corkboard, a quality not possessed in proportionate degree by other insulating materials. In fibrous materials, or materials not of cellular structure, the insulating value is dependent on air spaces, which are not independent of each other. The air content is merely entrapped between closely matted or inter- laced fibres, such interstices or voids being connected one with another ; and when moisture contacts with such materials [G. 49.—PURE CORKBOARD INSULATION IN MODERN FIBRE CARTON CONTAINING 12 BOARD FEET. is readily communicated, not alone by capillarity but also iby gravity, from one air space to another. The inherent ruggedness and toughness of cork bark is one of its outstanding and well-known qualities; and after it has been properly processed into sheets of pure corkboard, the resultant product is sufficiently strong to permit of its being transported, handled and used as readily as lumber, its strength in compression being sufficient to take care of loads many times greater than ordinarily encountered. The remark- able strength of such an excellent nonconducting material is simply another of the very important reasons for its universal use for all cold storage purposes.
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^oofe^a- 1842.4 This book may be ke
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Cork Insulation A
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To the Memory of JAMES EDWARD QUIGL
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tion of cork to other and more remo
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viii TABLE OF CONTENTS CHAPTER VI.
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X TABLE OF CONTENTS CHAPTER XIII. C
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xii TABLE OF CONTENTS CHAPTER XVIII
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2 CORK INSULATION floats for nets,
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CORK INSULATION vfany attem])ts lia
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6 CORK INSULATION •^ 4.—Home of
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8 CORK INSULATION and fifty feet an
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CHAPTER II. CORK STRIPPING. 6.—Re
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12 CORK INSULATION the cork oak tre
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14 CORK INSULATION seasoning prelim
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CHAPTER III. USES OF CORKWOOD AND U
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S CORK INSULATION 12.—Importance
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20 CORK INSULATION usually scraped,
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22 CORK INSULATION ful utilization
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24 CORK INSULATION from capillarity
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26 CORK INSULATION in place and spi
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28 CORK INSULATION for cold storage
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30 CORK INSULATION very substantial
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Z2 CORK INSULATION came The Nonpare
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34 CORK INSULATION glass bottle, al
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36 CORK INSULATION merit and an eff
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38 CORK INSULATION Paragraph 340.
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40 CORK INSULATION turning those st
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42 CORK INSULATION tip
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44 CORK INSULATION IMPORTS INTO UNI
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46 CORK INSULATION IMPORTS INTO UNI
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IMPORTS INTO UNITED STATES CORK INS
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so CORK INSULATION IMPORTS INTO UNI
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52 CORK INSULATION < i 2
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54 CORK INSULATION
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56 CORK INSULATION
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58 CORK INSULATION IMPORTS ENTERED
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70 CORK INSULATION O" coo I lOiM <
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72 CORK INSULATION crease by its be
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74 CORK INSULATION the tube and mer
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76 CORK INSULATION cooled, the air
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78 CORK INSULATION ordinary pressur
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80 CORK INSULATION sion. If a subst
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CHAPTER VIII. MEASUREMENT OF HEAT,
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84 CORK INSULATION equal to unity,
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86 CORK INSULATION The heat of fusi
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88 CORK INSULATION vaporize, and wh
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90 CORK INSULATION a pressure of 35
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92 CORK INSULATION of such air at t
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94 CORK INSULATION RELATIVE HUMIDIT
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96 CORK INSULATION and the temperat
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98 CORK INSULATION perature of the
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100 CORK INSULATION INTERNAL THERMA
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102 CORK INSULATION usually classed
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104 CORK INSULATION lose by radiati
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106 CORK INSULATION age wall <stron
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108 CORK INSULATION It will be seen
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110 CORK INSULATION H=K A (.U—U)
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112 CORK INSULATION : equals 17917,
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114 CORK INSULATION convection, and
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116 CORK INSULATION metal boxes wit
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118 CORK INSULATION the test box wi
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120 CORK INSULATION the areas and t
Page 138 and 139: 122 CORK INSULATION 79.—Tests by
Page 140 and 141: 124 CORK INSULATION a narrow limit,
Page 142 and 143: 126 CORK INSULATION In addition to
Page 144 and 145: 128 CORK INSULATION applications we
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Page 148 and 149: 132 CORK INSULATION j;aii 03 O .O 2
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Page 182 and 183: 166 CORK INSULATION Section XI of *
Page 184 and 185: 168 CORK INSULATION capillarity, el
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Page 194 and 195: CHAPTER XII. PROPER THICKNESS OF CO
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Page 200 and 201: 184 CORK INSULATION 91.—Proper Th
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Page 204 and 205: 188 CORK INSULATION In new structur
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Page 212 and 213: 196 CORK INSULATION cold storage ro
Page 214 and 215: 198 CORK INSULATION In the early da
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Page 222 and 223: 206 CORK INSULATION Pure air is dif
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Page 226 and 227: 210 CORK INSULATION A hard, repress
Page 228 and 229: 212 CORK INSULATION storage room is
Page 230 and 231: 216 CORK INSULATION joists of such
Page 232 and 233: 218 CORK INSULATION and delicately
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224 CORK INSULATION ating less heat
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226 CORK INSULATION The first petro
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228 CORK INSULATION to be used in a
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230 CORK INSULATION Flash Point is
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232 CORK INSULATION A suitable Asph
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234 CORK INSULATION enveloping memb
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236 CORK INSULATION fying agent, on
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238 CORK INSULATION at 105° C. The
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CHAPTER XIII. COMPLETE SPECIFICATIO
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242 CORK INSULATION 116.—Finish.
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244 CORK INSULATION a second layer
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246 CORK INSULATION one layer of ..
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248 CORK INSULATION CE/LING :-)::):
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250 CORK INSULATION into which cork
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252 CORK INSULATION 106.—Ceilings
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254 CORK INSULATION insulated, one
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256 CORK INSULATION compounds.* The
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258 CORK INSULATION to all joints i
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260 CORK INSULATION »
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262 CORK INSULATION 110.—Floors.
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264 CORK INSULATION the size of the
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266 CORK INSULATION Asphalt cement.
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268 CORK INSULATION shall then be e
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270 CORK INSULATION To the reasonab
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272 CORK INSULATION butted tight, a
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274 CORK INSULATION mixed one part
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276 CORK INSULATION consisting of .
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278 CORK INSULATION of . . .-inch p
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280 CORK INSULATION sand* for each
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282 CORK INSULATION To prepare Asph
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284 CORK INSULATION must be applied
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286 CORK INSULATION plied, and the
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288 CORK INSULATION 122.—Second L
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290 CORK INSULATION 124.—First La
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292 CORK INSULATION that the forms
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294 CORK INSULATION and all joints
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296 CORK INSULATION Break all joint
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298 CORK INSULATION board uncoated
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300 CORK INSULATION area (one face
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302 CORK INSULATION [ storage doors
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3(X CORK INSULATION surface*, and t
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506 CORK INSULATION floor, on a lev
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308 CORK INSULATION See that the fi
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310 CORK INSULATION line of the fla
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312 CORK INSULATION corkboards are
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314 CORK INSULATION mixed product*,
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316 CORK INSULATION floors and baff
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318 CORK INSULATION History also sh
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320 CORK INSULATION into natural ic
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322 CORK INSULATION them from freez
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324 CORK INSULATION smaller establi
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326 CORK INSULATION on the "Mechani
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328 CORK INSULATION the four walls
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330 CORK INSULATION load on the ref
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CHAPTER XVI. DEVELOPMENT OF THE COR
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334 CORK INSULATION "root house," t
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336 CORK INSULATION of the surround
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338 CORK INSULATION to a new positi
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340 CORK INSULATION natives who inh
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342 CORK INSULATION Nevertheless, t
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344 CORK INSULATION to the
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346 CORK INSULATION quickly form a
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348 CORK INSULATION come within the
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350 CORK INSULATION water, and the
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352 CORK INSULATION success, and su
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354 CORK INSULATION ^r T"T M // lC
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356 CORK INSULATION interlinings of
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358 CORK INSULATION Handles and Cor
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360 CORK INSULATION models, for ice
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362 CORK INSULATION Doors.—Door f
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364 CORK INSULATION triple nickel-p
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366 CORK INSULATION JEWETT SOLID PO
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368 CORK INSULATION of the opposite
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370 CORK INSULATION , waterproof co
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372 CORK INSULATION
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374 CORK INSULATION Top Iccr.—The
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376 CORK INSULATION COPELAND "DEPEN
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: 378 CORK INSULATION hours before
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380 CORK INSULATION j Household ref
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382 CORK INSULATION at the daily ex
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384 CORK INSULATION purposes and a
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CHAPTER XVII. DEVELOPMENT OF THE CO
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388 CORK INSULATION and practices p
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390 CORK INSULATION cream manufactu
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392 CORK INSULATION the ins
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394 CORK INSULATION heavily galvani
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396 CORK INSULATION dumping of the
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398 CORK INSULATION The Machine.—
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400 CORK INSULATION loss of efficie
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402 CORK INSULATION (b) Control of
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404 CORK INSULATION Modern Mechanic
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406 CORK INSULATION
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408 CORK INSULATION oning millions
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41C CORK INSULATION ing for the top
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412 CORK INSULATION Adjusliiii) Pla
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414 CORK INSULATION exactly in fron
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416 CORK INSULATION These compresso
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418 CORK INSULATION made to take si
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420 CORK INSULATION additional char
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422 CORK INSULATION The bottom lini
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424 CORK INSULATION Covers for Juni
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426 CORK INSULATION subject of inve
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428 CORK INSULATION lading next to
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430 CORK INSULATION warmest and the
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432 CORK INSULATION CHART IV The we
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434 CORK INSULATION That precooling
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436 CORK INSULATION Mr. President,
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438 CORK INSULATION the elimination
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440 CORK INSULATION Now let me proc
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442 CORK INSULATION of the eggs on
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444 CORK INSULATION It may be said
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446 CORK INSULATION occur. Salting
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448 CORK INSULATION the two inches
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450 CORK INSULATION ables as anythi
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452 CORK INSULATION We are continui
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454 CORK INSULATION Our object was
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456 CORK INSULATION As air circulat
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458 CORK INSULATION ers and cross s
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460 CORK INSULATION States standard
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462 CORK INSULATION temperature and
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464 CORK INSULATION CORK PAINT.* Fo
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466 CORK INSULATION strengthening c
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468 CORK INSULATION only 0.38; that
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470 CORK INSULATION
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472 CORK INSULATION possible throug
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474 CORK INSULATION ing and heating
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476 CORK INSULATION that for each o
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478 CORK INSULATION case of other g
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480 CORK INSULATION because it will
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482 CORK INSULATION ECONOMY OF GASO
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484 CORK INSULATION That this amoun
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486 CORK INSULATION form on walls a
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488 CORK INSULATION Practically all
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490 CORK INSULATION for the pebbles
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492 CORK INSULATION nailed to three
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494 CORK INSULATION QUANTITIES OF C
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496 CORK INSULATION EXAMPLE OF PURC
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498 CORK INSULATION Portland cement
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500 CORK INSULATION FREIGHT CLASSIF
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502 CORK INSULATION CORK PIPE COVER
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504 CORK INSULATION to give a bette
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506 CORK INSULATION 3. Ice Water Th
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508 CORK INSULATION brought tightly
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510 CORK INSULATION A GOOD DRINK OF
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512 CORK INSULATION The Cost and th
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514 CORK INSULATION cause the agree
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516 CORK INSULATION Legality— In
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518 CORK INSULATION In general, unl
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520 CORK INSULATION the work should
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522 CORK INSULATION (1) Page $8, pa
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524 CORK INSULATION Brooks ice crea
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526 Page Depreciation in efficiency
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528 CORK INSULATION test of asphalt
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530 CORK INSULATION ice, formation
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532 Page Sealed air cells 169 Seali
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534 CORK INSULATION Page of heat by
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GOOD BOOKS YOU SHOULD HAVE These ar
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DATE DUE
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