Renseignements généraux

Nº de série

S/O

Nº de partie

1

Nombre total de parties

14

Ou

S/O

Brevets

S/O

Description générale

BRASS & BELL-METAL CONSTRUCTION; CIRCLES, VERNIERS & MICROMETER SCREW SCALES DIVIDED ON PLATINUM; NICKEL (?) PLATING ON LEVELLING SCREWS; GLASS OPTICS/ WOODEN KNOB ON STRIDING LEVEL/ LEATHER COVER ON WOOD CASE

Dimensions

Remarque : Cette information reflète la taille générale pour l’entreposage et ne représente pas nécessairement les véritables dimensions de l’objet.

Longueur

39,4 cm

Largeur

29,0 cm

Hauteur

45,0 cm

Épaisseur

S/O

Poids

S/O

Diamètre

S/O

Volume

S/O

Lexique

Groupe

Exploration et levé

Catégorie

Mesure-angle

Sous-catégorie

S/O

Fabricant

Ou

Troughton Simms

Pays

England

État/province

Inconnu

Ville

London

Contexte

Pays

Canada

État/province

Inconnu

Période

C.1912-1925

Canada

THEODOLITE DESIGNED BY DR. E. DEVILLE, SURVEYOR GENERAL OF CANADA 1885-1924. USED ON BLOCK SURVEYS PERFORMED BY TOPOGRAPHICAL SURVEYSBRANCH C.1912-1925.

Fonction

TO DETERMINE LATITUDE, USING TALCOTT SYSTEM. USED GENERALLY TO MEASURE VERTICAL & HORIZONTAL ANGLES.

Technique

PRECISION THEODOLITE, DESIGNED FOR AND PROBABLY USED IN GEODETIC SURVEYING, LIKELY IN ESTABLISHING BASE LINES.

Notes sur la région

Inconnu

Détails

Marques

'TROUGHTON & SIMMS/ LONDON' ON PLATE/ '112' ON TELESCOPE BODY TUBE & STRIDING LEVEL CASING/ 'T.S. 1049' INCISED IN LEATHER COVERING ON CASE & ON SPARE EYEPIECE DIAPHRAGM/ '112' & 'NO.3' HANDWRITTEN IN PENCIL INSIDE CASE/ HUGHES-OWENS REPAIR LABEL INSIDE CASE/ DEPT. OF THE INTERIOR-TOPOGRAPHICAL SURVEY OF CANADA-PHYSICAL TESTING LABORATORY CARD FOR BASE LINE TRANSIT 1049 112 - DATED DEC. 21 (19)25, 22-4-26.- INSIDE CASE/ CARD INSIDE LID ' 'DEPARTMENT OF THE INTERIOR, TOPOGRAPHICAL SURVEYS BRANCH/ Block Survey transit Troughton & Simms micrometer #112/ One division of striding level [?]"at 44degrees Fahr. (Length of bubble 20 div.)/ T.S. Branch Label: "...One division of latitude level = [?illegible] at 47 Fahr. (Length of bubble 20 div.)/ One div. of spare striding level = [blank]/ One division of plate level = [blank]/ One turn filar micrometer = 1.66"398 at stellar focus at 60 Fahr./ WIRE 1 2 3 4 5/ Equatorial Intervals, Circle West, Drum West,/ DATE 25/3/12'.

Manque

MISSING SCREW TO ATTACH KNOB TO MICROMETER EYEPIECE. ELECTRICAL LAMP FITTING, INCLUDING BULB, MOUNTED ON BRACKET MAY NOT BE ORIGINAL TO THIS THEODOLITE.

Fini

ANODIZED GREEN FINISH ON TELESCOPE BODY TUBE, PLATE & LIMB, & STRIDING LEVEL/ STANDARDS, LEVELLING SCREW FRAME & SELECTED FITTINGS HAVE ANODIZED BLACK FINISH/ BRIGHT LACQUERED BRASS MICROMETER EYEPIECES & SOME FITTINGS/ LEVELLING FEET HAVE NICKEL-PLATED FINISH/ LIGHT BROWN LEATHER COVER ON WOOD CASE

Décoration

S/O