Leitz Ultropak microscope lamp
Date1950
Inventory Number2009-1-0070b
ClassificationMicroscope Light Source
Subject
Maker
Ernst Leitz (company)
1849 - 1986
User
William Alexander Jackson
1905 - 1964
User
Houghton Library, Harvard University
founded 1942
Cultural Region
Place of Origin
Dimensionsbox: 5.1 × 14.2 × 6.4 cm (2 × 5 9/16 × 2 1/2 in.)
box: 3 × 7.1 × 6.8 cm (1 3/16 × 2 13/16 × 2 11/16 in.)
storage box: 25.4 × 53 × 26.7 cm (10 × 20 7/8 × 10 1/2 in.)
box: 3 × 7.1 × 6.8 cm (1 3/16 × 2 13/16 × 2 11/16 in.)
storage box: 25.4 × 53 × 26.7 cm (10 × 20 7/8 × 10 1/2 in.)
Material
AccessoriesUltropak microscope lamp; sector shutters (2); glass filters (5); driver; spare bulbs (8); boxes (2).
Description2009-1-0070 is a Leitz binocular compound microscope on a pillar stand with the Ultropak accessories for incident light on opaque objects. Due to the complexity of the parts, this entry is split up into the following:
2009-1-0070a: Leitz binocular compound microscope on stand.
2009-1-0070b: Leitz Ultropak microscope lamp and accessories
2009-1-0070c: Leitz UO objective 3.8X extension tube and diaphragm
2009-1-0070d: Leitz UO objective 6.5X extension tube and diaphragm
2009-1-0070e: Leitz UO objective 11-50X extension tube and diaphragm
2009-1-0070f: Leitz oculars in box
2009-1-0070g: Leitz dust covers
2009-1-0071: Leitz transformer for Ultropak lamp
The packing slip dated 5-4-50 from E. Leitz Inc., New York, lists these items and others now missing. The CHSI file also contains related correspondence, Ultropak catalogues from 1935 and 1939, a price list, and more items related to this collection.
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2009-1-0070b
The Ultropak light-source attachment is present and stored in a red cardboard box with a hinged lid marked "Leitz" and "Ultropak." The low voltage bulb (8 volt, 0.6 amp) is held in a metal housing by a knurled screw, and the housing is centerable in the changing device by means of 3 more screws. The electrical cord is wrapped in braided cord and has a 2 prong plug. (The plug mates with the adjustable transformer, 2009-1-0071). A wooden fitting in the box holds 2 spare light bulbs; 2 blackened brass diaphragms with rotating sectors (aka "sector shutters"); 5 glass disk filters (ground white glass, daylight, heat absorption blue, green, and yellow); and a pin driver.
A square red cardboard box with lid holds 6 spare bulbs inserted into a cardboard frame. The lid is marked "Leica / E. Leitz, Inc. / NEW YORK."
2009-1-0070a: Leitz binocular compound microscope on stand.
2009-1-0070b: Leitz Ultropak microscope lamp and accessories
2009-1-0070c: Leitz UO objective 3.8X extension tube and diaphragm
2009-1-0070d: Leitz UO objective 6.5X extension tube and diaphragm
2009-1-0070e: Leitz UO objective 11-50X extension tube and diaphragm
2009-1-0070f: Leitz oculars in box
2009-1-0070g: Leitz dust covers
2009-1-0071: Leitz transformer for Ultropak lamp
The packing slip dated 5-4-50 from E. Leitz Inc., New York, lists these items and others now missing. The CHSI file also contains related correspondence, Ultropak catalogues from 1935 and 1939, a price list, and more items related to this collection.
-------------------------------------
2009-1-0070b
The Ultropak light-source attachment is present and stored in a red cardboard box with a hinged lid marked "Leitz" and "Ultropak." The low voltage bulb (8 volt, 0.6 amp) is held in a metal housing by a knurled screw, and the housing is centerable in the changing device by means of 3 more screws. The electrical cord is wrapped in braided cord and has a 2 prong plug. (The plug mates with the adjustable transformer, 2009-1-0071). A wooden fitting in the box holds 2 spare light bulbs; 2 blackened brass diaphragms with rotating sectors (aka "sector shutters"); 5 glass disk filters (ground white glass, daylight, heat absorption blue, green, and yellow); and a pin driver.
A square red cardboard box with lid holds 6 spare bulbs inserted into a cardboard frame. The lid is marked "Leica / E. Leitz, Inc. / NEW YORK."
Signedon box of spare bulbs: Leica / E. Leitz, Inc. / NEW YORK
on box for Ultropak and OU 11-50X extension tube: Leitz
ProvenanceWilliam A. Jackson, Librarian, Houghton Library, Harvard University, c. 1942 ; transfer to CHSI courtesy of Dennis Marnon, 2009.
Historical AttributesUsed by William A. Jackson, first librarian of Houghton Library.
When Houghton Library opened in 1942, Jackson invested in a lot of state-of-the-art equipment for examining books and investigating them. The apparatus included microscopes, black lights, and special lamps.
This particular type of instrument was made as early as 1935, but this one was not purchased until 1950. The earlier date is found in Leitz catalogues related to the Ultropak system. The later date is found on a packing list. These accompanied the microscope kit and are in the CHSI instrument file.
Ernst Leitz (company)
Date: 1950
Accessories: box.
Object number: 2009-1-0070e
Ernst Leitz (company)
Date: 1950
Accessories: box
Object number: 2009-1-0070d
Ernst Leitz (company)
Date: 1950
Accessories: box
Object number: 2009-1-0070c
Ernst Leitz (company)
Date: 1950
Object number: 2009-1-0070a
Ernst Leitz (company)
Date: 1950
Object number: 2009-1-0070g
Ernst Leitz (company)
Date: 1950
Accessories: see description for full list
Object number: 2009-1-0070
Ernst Leitz (company)
Date: 1935-1940
Accessories: oculars (3 pairs): 4X, 5XB, 6XB; objective/condensers (4): 11, 3.8X, 22-100, and UO 6.5; magnification table; standing case.
Object number: 2009-1-0065
Ernst Leitz (company)
Date: circa 1935
Accessories: eyepieces (2) G8x; other optical accessories, see 2003-1-0005b and 2003-1-0005c.
Object number: 2003-1-0005a
Carl Zeiss, Optische Werkstätte, Jena
Date: circa 1886
Accessories: oculars (2): Leitz 4xB, Winkel Zeiss kl 2; objectives (4): Leitz 7, 1/7a oil immersion, Zeiss B, HI 90 iris, B&L 8mm, 1/5, Grunow 1/6; B&L double nosepiece; parabolic reflector for stage; Abbe condensor with iris-cylinder diaphragm; articulated substage mirror; frame for cup diaphragms; cup diaphragms (2); Zeiss-B&L polarizing analyzer A6; Zeiss-B&L vertical illuminator; flat case; key.
Object number: 1044
Ernst Leitz (company)
Date: 1950
Object number: 2009-1-0071
