STANDARD - Survey Instrument Antique Center!

5|"
168
ENGINEERS' AND SURVEYORS' TRANSIT.
The essential features of this transit are like those enumerated under No. 1,
page 150, \vith the exception of size and weight. We strongly recommend it for
use where a lighter instrument is desirable for land surveying, railroad, mining and
underground work, etc., of all kinds and where a graduation reading direct to single
minutes and to 30" and 20" by estimation is preferred. Every part is made with great
care and the aperture, focal length and power of telescope are properly related to each
other and to the size of plate to make this a very compact, portable and accurate transit.*
Complete Transit Size No. 2. As in cut (see opposite page), but with
verniers at 30 to line of sidit (unless ordered to be at 90).
Horizontal circle 5>^-inch (at edge of graduation), graduated on heavy inlaid
ring of solid silver, double opposite verniers reading to minutes, two rows of
figures to 360 in opposite directions; figures inclined in the direction verniers
should be read; verniers at 30 to line of sight.
Vertical arc 5-inch, graduated on solid silver, double verniers read to minutes.
Telescope lOX-inell, Objects erect, t aperture 1# inch, -power 18 dia.
Stadia wires, fixed,
in ratio 1:100.
Spirit level 5>-inch, with clamp and tangent screw to telescope.
Plate levels of standard length and very sensitive.
Magnetic needle 3%" edge-bar form having no index error.
Shifting" center, to set instrument exactly over a given point.
Punch mark on top of telescope, to enable to center the transit from a point above.
Standards leatherized (see page 9).
Full length split-leg- tripod.
The Mahogany case has a leather strap, hooks, etc. It contains a sun-shade, a wrench,
a screw-driver, an adjustable plumb-bob, a magnifying glass, an adjusting pin, and
weighs about 7 Ibs.
Weight of transit about 10 Ibs. ; weight of tripod from 9 to 9>^ Ibs.
Gross weight of transit packed securely for shipment in two boxes, about 55 Ibs.
Code Word Calypso. Price, $243.OO
Transit No. 2 as in Calypso but without solid silver, graduations silvered.
Code Word Calixa. Price, $228.OO
Transit No. 2 as in Calypso but -without vertical arc ( see No, 1 a, page 152).
Code Word Calamus. Price $223.OO
Transit No. 2 as in Calypso but -without level, clamp, tangent screw, arc
or stadia -wires to telescope (see cut Plain Transit No. 1, page 151).
Code Word Caladium. Price $19O.OO
Extras to Complete Transit No. 2.
Standards polished and lacquered (no leather finish). Extra 95.OO
5-inch full vertical Circle*, in place of arc), graduation on solid silver, double vernier
between legs of standard reading to minutes, with aluminum guard (as in cut, page 177). . . 9.0O
Gradienter attachment 5.OO
Offsetting arrangement
Short FOCUS Lens (see pp. 101, 203). One pair
Variation Plate, to set off all declinations E. or \V
5.0O
16.OO
1O.OO
Cravenette hood (heavy, gives good protection); Silk (light, not waterproof), each . . 1.00
Bottle Of fine watch-oil, to lubricate the center, etc., of transit O.35
*For close stadia work, Transit telescope size No. 1, with its longer focal length and higher power, will
be best suited for that purpose. But in all cases where greater lightness and portability and where only general
good results in stadia work, as obtained with a less powerful telescope, will be deemed satisfactory, size No. J8
should be chosen. We cannot put a telescope of the size described under No. i upon a Transit size No. 2.
t An Inverting Telescope of 1%" aperture, 1O% inches long and with a power of 22 dia. can
be supplied with the above transits in place of the regular erecting one at no additional cost, but the instrument
must be made to order. This telescope is particularly well adapted for stadia work.