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Figure 2. Dockside crane No.16 in front of a warehouse at West Hafen Berlin (08.08.Stahn) conveying equipment. This crane, along with three others, stands as physical evidence of the quotidian and industrial culture of the first half of the 20 th century, and as such retains an indirect significance for the entire harbor construction, for its owners (BEHALA), for Berlin’s historical landscape and for technical research. In this concept for preservation and partial restoration we aim to consider the interests of all concerned to the extent possible without moving away from our own goal, an appropriate, state-of-the-art restoration of the object. At the time of completion, all the institutions involved should have gained something from the project. We aspire to a solution in which the age of the crane is made tangible, the work it has performed is valued, and its elegant, and, in comparison with modern appearances, calm forms and surfaces fit into the scenery of the elongated, symmetrically ordered harbor. Since the decommissioning of the equipment was planned well in advance, maintenance was already reduced to the minimum necessary during the crane’s last 10 years of service. The last overhaul was 20 years ago. Nonetheless, the historical coatings from up to four phases have been preserved over large areas, and form a stable layer. Some of the labels applied at time of the last protective coating (1989) also remain legible. Here, a partial, situation-oriented surface restoration is suggested. It is preferred to the still commonly practiced complete resurfacing. A decisive advantage is the minimization of expense through the reduction of both labor costs and hazardous wastes produced. Through this approach, long-lasting protection from continuative corrosive assault and the static safety of the system are ensured. A special challenge in the development of the restoration concept was presented by the intersections and joint areas of the riveted steel skeleton. In the 1980s, a polyurethane and zinc chromate-based injectable material was developed for similar applications. It was first used to protect ropes and cables from corrosion in bridge building. The polyurethane permeates tiny capillaries and cavities in the structure. Once inside, it reacts and becomes an elastic or elastomeric synthetic material. The grid is thus hardened and sealed, and the progression of the oxidation process is impeded. Open cracks are subsequently sealed with polyurethane/zinc-chromate foam. This method was used in the renovation of the Heinrichenburg ship Figure 3. Abrasive blasting with dry ice pellets (09.08 Beck) 189
Figure 4. Dockside crane No.16 Orthofoto 06.08 Laserscan Berlin lift [5]. Shierk’s report on the subject [5] was written twelve years later and describes an unchanged corrosion preventive effect for a period of at least ten years. A pigmented corrosion protection system was chosen for the surface areas for its homogenous appearance and longer durability. The color is matched to the remaining protective coating. A special polyurethane system especially developed for such purposes is used. The special feature of this system is the single-component, moisturehardening polyurethane primer for application over Table 1. Coating system from Dr. A. Conrad’s Enamel Inc. (Dr. A. Conrads Lacke GmbH & Co. KG). Composition Color Article Number EK PUR Base (thin Colorless fluid) PE 000090 EK PUR Zinc base Zinc grey PE 917709 EK PUR Intermediate basecoat Yellowish silver PE 133309 EK PUR Enamel for the first topcoat Grayish silver PD 070229 EK PUR Enamel RAL or DB shades PA „ NCS 7020 for the second topcoat or PA „ NCS 7020 G10Y “ 63 G10Y “ 88 Solvent for EK PUR System ZP 215152 190 original coatings and steel surfaces with residual rust. [6] This base coat adheres particularly well to slightly rusty surfaces, and removes the residual moisture important for the corrosive process. The corrosive process is thus interrupted. The complete composition of the coating is described in the following table. (For application instructions see below.) For the application of this system, a hand-derusted surface is sufficient. (The cleanliness factor should equal DIN EN ISO 12944 P MA or DIN EN ISO 12944 P St 3.) Loose sections of the old coating must be removed. For a pre-treatment meeting such requirements, abrasive blasting with dry ice pellets was tested with good results. A decisive advantage is the sublimation of the pellets after their successful application. The substance to be protected is only slightly affected. For the exact mapping of the corrected surfaces, the crane was three-dimensionally laser scanned and drawn with millimeter-exactitude with a CAD program. All the surfaces to be re-coated are noted on the drawing. The above described and a similarly composed enamel system were successfully tested on the steel frame of the Wuppertal Suspension Railway and the furnace of Heinrichshütte in Hattingen, among other objects. Case Study 3: Water Pump, Kenidjack Valley In a valley to the north of Lands End and only a few yards from the sea stand the remains of a dieselpowered water pump. Originally, the pump was used to supply the surrounding area with fresh water from the tunnels of underwater mines. Because of direct proximity to the sea, salt damage to the steel was considerable. In this case an industrial corrosion protectant was the most economically feasible solution for the object to survive in the long term. Extensive rust removal is a necessary precondition for this strategy as is the thorough removal of salt. Conscientious fulfillment of these tasks is made especially difficult by proximity to the sea, if costs are to be kept low. The use of an active anticorrosive could also be interesting because of its
Page 1 and 2:
Preserving the evidence of industri
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Copyright: This publication is issu
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Table of contents Foreword ........
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Contributions KeynotespeaKers
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”The control and disciplination o
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uildings of this age. To sum up: Th
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need tons of cans to fully understa
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one of the first to be industrializ
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manufacture of billiard balls. Hyat
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have very similar characteristics;
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MACHINERIES were introduced, but al
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16) Goodman N., Langages de l’art
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Table 1. Collections containing pla
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Figure 2: A pile of transparent cel
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diisocyanate such as diphenylmethan
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Figure 7: Environmental Stress Crac
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Author Yvonne Shashoua Senior Resea
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Contributions
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Figure 1. H.A. Brendekilde, Odense
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weaving, the imported machine spun
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Figure 2. T. Kloss. Den danske eska
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Annemette B. Scharff, MSc. The Roya
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22. Eckersberg diaries, 29.7.1834:
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The St Just Coast Project 1995 - 20
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Prior to the St Just Coast Project
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shaft. Considering the considerable
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In 2005 the slipway at Cape Cornwal
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Figure 1: The EWO dosimeter holder
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Figure 2: EWO results reporting dia
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Figure 3: Correlation of EWO respon
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The EWO is available on direct orde
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Figure 2. Nature is back at coking
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3a 3b 3c 3d 3e 70 Figure 3a-e Being
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Table 2. Case studies location Hatt
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Flameproofed textiles in museums an
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y strong acidity created as an effe
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textile fibres, especially those of
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Cold storage as an alternative to m
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% of objects 100 90 80 70 60 50 40
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% of very brittle objects (3 hand f
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lie in the range of 20-25 euros per
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Preservation of sponsored films Int
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In the case of A & B rolls the diff
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Table 2. Advantages and disadvantag
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Table 3 “The preservation route
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The scientific committee considered
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DSCF 1304 Preservation of mass-prod
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Developing a policy and procedure f
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at the (very) occasional public ope
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• the object’s current conditio
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Polymers in watches manufactured in
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as a result of the Watch Valley con
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Figure 6. The Astrolon Watch “Ide
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of status of the watch is obvious i
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[26] Bergeon, S. Ethique et conserv
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Gramophones and Records - the first
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Record manufacturing process 1925-1
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Gramophones The reproducing machine
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Pickups (and cutterheads) are very
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USS Monitor conservation: preservin
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Figure 1: X-radiograph mosaic of US
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Figure 4: Detail of ventilation uni
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Figure 8: Detail of Monitor’s pac
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Authors Eric Nordgren, David Krop,
Page 139 and 140: Figure 2. The Ducretet inductor coi
Page 141 and 142: During its time in storage at the N
Page 143 and 144: Figure 8. Wigmore Castle after cons
Page 145 and 146: [14]Henderson, J. And P. Manti (200
Page 147 and 148: The instability of iron when subjec
Page 149 and 150: Fig. 2 Rust stains on the too-thinl
Page 151 and 152: Fig. 4 Some bicycles in use and in
Page 153 and 154: 5. Conservation options: Preserving
Page 156 and 157: Another look at painted finishes on
Page 158 and 159: the currency of the finishes. The w
Page 160 and 161: Figure 3 WW2 airplane with newly-pa
Page 162 and 163: paint chips that are simulated with
Page 164 and 165: Notes: 1. There are a few notable e
Page 166 and 167: Industrially produced paint and the
Page 168 and 169: twentieth century. In the same peri
Page 170 and 171: table 1. cont. Styrenebutadiene or
Page 172 and 173: Figure 3. “A useful play!” is t
Page 174 and 175: Author Nynne Raunsgaard Sethia Den
Page 176 and 177: Protection of iron and steel in ind
Page 178 and 179: provided by the manufacturers indic
Page 180 and 181: Table 2: Suppliers for selected pro
Page 182 and 183: Table 3: Application, appearance an
Page 184 and 185: Figure 5: Impedance versus frequenc
Page 186: 3. Hollner, S., Mirambet, F., Rocca
Page 189: The choice of coating system depend
Page 194 and 195: Recovering the Icon ? The restorati
Page 196 and 197: Fig 3: Early 20th century photograp
Page 198 and 199: Fig 8: New mercury-vapor rectifiers
Page 200 and 201: problematic since the colliery clos
Page 202 and 203: Despite all our rational attempts a
Page 204 and 205: Author Dipl.-Ing. Norbert Tempel, L
Page 206 and 207: The conservation of a Victorian shi
Page 208 and 209: sold to the Falkland Islanders and
Page 210 and 211: Figure 9. Fort Brockhurst Bridge -
Page 212 and 213: Figure 13 Artist’s impression of
Page 214 and 215: Figure 21 View from bow after the w
Page 216: [3] Transactions of the Institute o
Page 219 and 220: 38 in total, included on the Norweg
Page 221 and 222: published a new version of their fi
Page 223 and 224: Figure 4. The turbines, one origina
Page 225 and 226: Author Vigdis Vingelsgaard Conserva
Page 227 and 228: Figure 2: 6200 locomotive on front
Page 229 and 230: Figure 4: Methyl bromide extinguish
Page 231 and 232: 2. Biological: Obvious biological h
Page 234: Finalizing Comments
Page 237 and 238: colliery engine house to have stain
Page 239 and 240: for us to think that the treatment
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certain product may quickly turn in
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Organising committee anDersen, vivi
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