Leitz UK IV stand with UBM Greenough-type stereoscopic compound microscope
Date: circa 1935
Inventory Number: 2003-1-0005a
Classification: Microscope
Subject:
Maker: Ernst Leitz (company) (1849 - 1986)
User: Farlow Herbarium (founded 1919)
Cultural Region:
Place of Origin:
Dimensions:
31 x 16.5 x 18 cm (12 3/16 x 6 1/2 x 7 1/16 in.)
Accessories: eyepieces (2) G8x; other optical accessories, see 2003-1-0005b and 2003-1-0005c.
Bibliography:
Leitz Ultropak
DescriptionThis is a Leitz Greenough-type stereoscopic binocular tube of the UBM series attached to an Ultropak microscope stand with cross motion, model UK IV.
The UK IV stand has a cast-iron, horseshoe-shaped base with wide spread legs. The upright pillar has a handle hole. The instrument is not inclinable. At the top of the pillar is a pair of crossed tracks, each of which operates by means of rack and pinion in order to give the body tube x-y motion in the plane of the stage. Thus the body tube is adjusted in a manner similar to a mechanical stage.
The top platform carries its own upright track with a clamping lever. A slider in the track has another rack and pinion, which operates yet another track with a clamping lever. The slider carrying the binocular tube is clamped here. An objective adaptor can be attached below the tube and would take the paired objectives, each on its own slide [see 2003-1-0005c]. At the moment no objectives are attached and the magnification is 1X. The oculars present are G8X.
Focus is by rack and pinion.
The square stage has a removable glass disk. It is adjustable in height by sliding in a track. A clamping lever secures it in the desired position. Stage clips are missing.
The substage mirror is quite large and has a plane mirror on one side and a white disk on the other. The mirror is fixed in place to the substage.
A set of optics [2003-1-0005b and 2003-1-0005c] accompanies this instrument.
The UK IV stand has a cast-iron, horseshoe-shaped base with wide spread legs. The upright pillar has a handle hole. The instrument is not inclinable. At the top of the pillar is a pair of crossed tracks, each of which operates by means of rack and pinion in order to give the body tube x-y motion in the plane of the stage. Thus the body tube is adjusted in a manner similar to a mechanical stage.
The top platform carries its own upright track with a clamping lever. A slider in the track has another rack and pinion, which operates yet another track with a clamping lever. The slider carrying the binocular tube is clamped here. An objective adaptor can be attached below the tube and would take the paired objectives, each on its own slide [see 2003-1-0005c]. At the moment no objectives are attached and the magnification is 1X. The oculars present are G8X.
Focus is by rack and pinion.
The square stage has a removable glass disk. It is adjustable in height by sliding in a track. A clamping lever secures it in the desired position. Stage clips are missing.
The substage mirror is quite large and has a plane mirror on one side and a white disk on the other. The mirror is fixed in place to the substage.
A set of optics [2003-1-0005b and 2003-1-0005c] accompanies this instrument.
Signedon rack and pinion of body tube and on body tube itself: E. LEITZ / WETZLAR [in achromat trademark]
on cross-motion platform: Ernst Leitz / Wetzlar
on oculars: Ernst Leitz Wetzlar
on cross-motion platform: Ernst Leitz / Wetzlar
on oculars: Ernst Leitz Wetzlar
Inscribedon cross-motion platform: No. 265630
FunctionThis form of stand is good for systematic searching of a specimen of extended size.
Historical AttributesThis instrument was used in the Farlow Herbarium, Harvard University, Cambridge, MA.
Primary SourcesE. Leitz, Inc., Leitz Ultropak (New York: E. Leitz, Inc., 1935), 28.
ProvenanceFarlow Herbarium, Harvard University, Cambridge, MA
