203 10 3473 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant England Creator An entity primarily responsible for making the resource Grubb Parsons Date A point or period of time associated with an event in the lifecycle of the resource 1800 Description An account of the resource A scale expansion unit for the Grubb Parson Spectrophotometer. 3 dials, 2 ranging from 1 to 10 and the other from 1 to 5 in single divisions. 2 cables. In cardboard box with an assortment of screws, washers and cogs. On unit in white lettering "Grubb Parsons England, Ser. No. 22". Format The file format, physical medium, or dimensions of the resource height 60mm, length 120mm, width 95mm metal, rubber, plastic Identifier An unambiguous reference to the resource within a given context ABDNP:200615b Title A name given to the resource Scale expansion unit Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Date A point or period of time associated with an event in the lifecycle of the resource 1780-1810 Description An account of the resource Glass tube with brass ends; with ball terminals; inside tube is spiral of small metal discs each seperated by gap of less than 1 mm; when tube is placed across an electrostatic generator, a spiral discharge is seen around inside of tube caused by sparking between metal discs Format The file format, physical medium, or dimensions of the resource length 330 mm; diameter 25 mm glass; brass; metal Identifier An unambiguous reference to the resource within a given context ABDNP:201762a Title A name given to the resource Spiral spark tube Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Aberdeen Creator An entity primarily responsible for making the resource Fraser & McKay Scientific Instrument Makers Description An account of the resource two nickel (?) balls mounted on insulating rods affixed to a wooden base. Connection is made to the balls by plug in brass connectors, the connecting wires have been cut off. Mounted on a rectangular wooden base with four rubber feet, one ball can be moved by a long brass adjusting screw with thumbnut Format The file format, physical medium, or dimensions of the resource 400mm x 120mm x 360mm high nickel, wood, brass, rubber, insulating material Identifier An unambiguous reference to the resource within a given context ABDNP:200495a Title A name given to the resource spark gap Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource unknown Date A point or period of time associated with an event in the lifecycle of the resource 1860-1890 Description An account of the resource piece of metal on the end of a metal rod. The metal rod has a brass ball on the other end. The device is placed on metal block and heated at one end. When left to cool it moves slightly emitting a rocking sound. Format The file format, physical medium, or dimensions of the resource length 445mm, width 48mm, height 12mm metal and brass Identifier An unambiguous reference to the resource within a given context ABDNP:201245a Title A name given to the resource Trevelyan's rocking apparatus Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Description An account of the resource one of a pair, circular base weighted with lead, the vertical tapers upward from a bulbous bottom, terminating with a wing nut for holding a telescopic inner section of glass rod Format The file format, physical medium, or dimensions of the resource base 105mm dia, 350mm high bronze, glass, lead Identifier An unambiguous reference to the resource within a given context ABDNP:200389a Title A name given to the resource stand Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource AVO Date A point or period of time associated with an event in the lifecycle of the resource 1970-1980 Description An account of the resource Manual for Avo multimeter Model 8 Mk II but similar for other Model 8 instruments Identifier An unambiguous reference to the resource within a given context ABDNP:200948b Title A name given to the resource Avometer Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Unknown Date A point or period of time associated with an event in the lifecycle of the resource 1800 Description An account of the resource Glass bottle in the shape of a sector of a circle with a glass stopper. Format The file format, physical medium, or dimensions of the resource height 115mm, length 60mm, width 65mm glass Identifier An unambiguous reference to the resource within a given context ABDNP:200640a Title A name given to the resource glass bottle Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant England Creator An entity primarily responsible for making the resource G.E.C. Date A point or period of time associated with an event in the lifecycle of the resource 1950-1970 Description An account of the resource Cardboard box of carbon rods; box of 25; '35-55 amps'; stage arc carbons positive, 18 mm x 6". Format The file format, physical medium, or dimensions of the resource Box: width 160 mm; 100 mm; height 100 mm cardboard; carbon Identifier An unambiguous reference to the resource within a given context ABDNP:201819a Title A name given to the resource Carbon rods Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Cambridge, London Creator An entity primarily responsible for making the resource W. G. PYE & Co. Date A point or period of time associated with an event in the lifecycle of the resource 1930-1960 Description An account of the resource Motor driven metal wheel with 30 rectangular slits attached to a smaller reduced speed cog and bell on a solid cast iron base. Small plate with "W. G. PYE & Co. Cambridge, London". Format The file format, physical medium, or dimensions of the resource dam. (wheel) 240mm approx, length 210mm, width 215mm metal Identifier An unambiguous reference to the resource within a given context ABDNP:200666a Title A name given to the resource light interrupter Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant 428 Strand, London, England Creator An entity primarily responsible for making the resource E.M Clarke Date A point or period of time associated with an event in the lifecycle of the resource 1840-1851 Description An account of the resource Selenite sample for polarising mirror set in wooden frame for use in Optician mirror set. Format The file format, physical medium, or dimensions of the resource diam. (total) 90mm, diam. (lens) 45mm glass, wood Identifier An unambiguous reference to the resource within a given context ABDNP:200644b Title A name given to the resource Selenite sample for polarising mirror