Stand 114 —cont.
Stand 116 —cont.
Stand 117A —cont.
Stand 117A —cont.
Products include: Rangefinders, navigational, surveying and military.
Submarine periscopes and periscopes for remote observation in atomic
reactors, wind tunnels, etc. Gunnery control equipment. Binoculars and
monoculars: Gunsights. Lenses, prisms, mirrors in optical glass and in
special materials for use in the infrared, visible and ultra-violet regions.
Optical filters for many purposes and for use at specified wavelengths
within a wide range. Monochromators and ancillary equipment for
spectrographic measurements. Precision gears of the highest accuracy.
Vacuum-grown optical crystals. High-speed cameras and associated
electronic equipment.
The Kelsh Instrument Co. Inc.
Baltimore, Maryland, U.S.A.
Representatives: H. T. Kelsh
A. J. Kramer
Exhibit
Kelsh Plotter.
Kelsh Automatic Dodging Projection Printer.
Activities and Products
The Kelsh Co. manufactures various types of photogrammetric
equipment.
STAND 115
Examination Hall
Gordon Square
Third Floor
Haag-Streit AG STAND 116
Hess-Strasse 27, Liebefeld- Berne, Switzerland Examination Hall
Gordon Square
Representative: A. Haag Third Floor
Exhibit
Rectangular Coordinate Plotter 1200 mm. x 1200 mm. with light table.
Working surface 1200 mm. x 1200 mm. (47-25 in.x47-25 in.). Plotting
accuracy 0-04 mm. (0-0015 in.), interchangeable dials for each scale ratio,
pricker microscope, high-precision racks.
Rectangular Coordinate Plotter 500 mm. X 400 mm. Working surface
500 mm. x400 mm. (19-7 in. x 15-75 in.). Plotting accuracy ¿0-02 mm.
(00008 in.). Graduations on white, non-dazzling celluloid; verniers on
glass. Adjustable straps for interval numbering. Pricker microscope.
29
Polar Coordinate Plotter. Radius of action 200 mm. Plotting accuracy
± 0-02 mm. (0-0008 in.). Pricker microscope. Graduations on white,
non-dazzling celluloid; verniers on glass.
Instruments for Scribing on Coated Glass. Universal and simplified
scribing instrument for use by hand. Burins and other accessories for use
on coordinatographs.
Coordinate Master Grid Plate. For quick and accurate pricking of
rectangular grids, with 50 mm. or 100 mm. distance between the slots.
Accessories: pricker and centering insertions.
Activities and Products
Messrs. Haag-Streit AG are specialists for the manufacture of precision
apparatus and instruments. Besides the manufacture of coordinatographs
and other instruments for surveying purposes their main concern is the
production and sale of ophthalmological instruments such as Slit Lamps,
Perimeters, Ophthalmometers, Adaptometers, etc.
Zeiss-Aerotopograph G.m.b.H.
57 Ismaninger Strasse, München 27, Germany
Representatives: Dr. E. O. Messter
Dr. M. Ahrend
H. Bischoff
Dr. H. H. Deker
B. Send
H. Träger
Exhibit
Instruments for Aerial Photography
Aerial Survey Cameras. For normal angle, wide angle, and convergent
photography with Zeiss high-performance lenses Topar and Pleogon. Both
lenses are practically free from distortion and have an excellent resolving
power.
All cameras are equipped with Aerotop-shutter, which is placed between
the lenses and which works on the principle of continuously rotating disks
thus avoiding any retarding shock after each exposure, which occurred
with the spring-operated type. The shutter operates with “flying start”
thus achieving a remarkably high degree of efficiency. A continuous
setting of exposure times between 1/100 up to 1/1000 of a second are
possible. This proves to be of special advantage for low-flying missions
with fast aeroplanes, for cadastral work, land reallotment, and engineer
projects.
STAND 117A
Examination Hall
Gordon Square
Fourth Floor
30
EXHIBITION GUIDE
