TERMIUM Plus®

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LENS SIGHT [4 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2000-04-28

English

Subject field(s)
  • Burners and Steamfitting
  • Ovens, Furnaces and Boilers (Heating)
DEF

A pipe, mounted to the front plate of a combustion chamber, through which an optical flame detector sights the burner flame.

CONT

The Forney Dual Fuel Horn Igniter assembly consists of a mounting plate, combination oil and gas gun, High Energy Spark Igniter (HESI), 6" combustion air tube, flame detector and horn. The mounting plate retains the oil/gas gun, HESI and flame detector guide pipe. The flame detector head is mounted on a 1" sight pipe which provides an unobstructed view of the flame inside the horn.

CONT

This fibre optic viewing head extension is particularly useful for solving the sighting problems associated with tilting or movable burners. The flame envelope from this type of burner can be tilted from a horizontal position up or down as much as 30 degrees. It would be impossible to follow this flame pattern with a fixed sighting through the wind-box. Welding the tip guide(lens end) of this viewing head extension to the movable air compartment nozzle solves this problem. This viewing head extension can also be used for those applications where it is impossible to find a clear unobstructed view of the flame using a standard sight pipe. Here again the viewing head extension is mounted inside the furnace for a clear unobstructed view of the flame.

French

Domaine(s)
  • Fumisterie et brûleurs
  • Fours et chaudières (Chauffage)

Spanish

Save record 1

Record 2 1996-06-28

English

Subject field(s)
  • Archery

French

Domaine(s)
  • Tir à l'arc

Spanish

Save record 2

Record 3 1993-10-13

English

Subject field(s)
  • Optics
  • Land Forces
CONT

The increased magnification is provided by the addition of an easily-removed afocal Galilean lens to the standard x4 sight.

French

Domaine(s)
  • Optique
  • Forces terrestres
CONT

Le grossissement plus fort (x6) est obtenu en ajoutant au viseur standard (de grossissement x 4) une lentille afocale de Galilée aisément démontable.

Spanish

Save record 3

Record 4 1987-08-21

English

Subject field(s)
  • Flight Instruments and Equipment (Aeroindustry)
CONT

An underfuselage view of a Pilatus Turbo-Porter, with doors open for a photographic run, showing the Aviogon lens system of the Wild Heerbrugg RC10A aerial camera which, with the navigation sight/viewfinder, protruding from the small cut-out, makes up the Aviophot RC10A aerial camera system.

French

Domaine(s)
  • Instruments et équipement de bord (Constructions aéronautiques)

Spanish

Save record 4

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