boiler Agent glass viewing aperture


boiler glass viewing aperture - restlos-bistro.de

Boiler Glass Viewing Aperture - ratinger-backstube.de. Boiler Glass Viewing Aperture. Fluid level gauge comprising synthetic sapphire . 2005-11-24 · A fluid level gauge according to claim 14 wherein said viewing windows each comprise a viewing window assembly said assembly comprising a window cover defining an elongated viewing aperture and a lense support rim for retaining the one or more

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Industrial Borescope | PCE Instruments

Relatively small angles of view are particularly suitable for details and spatially very narrow inspections. For example an borescope camera for inspections can be equipped with an aperture angle of 60 67 90 105 120 135 or 150 degrees. Focus and depth of field of view

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Everything about Refractors Part III: a summary of those ...

LZOS 100mm aperture f/8 refractor. Altair Astro is also an agent for the hand crafted CFF Telescopes range. Employing oil spaced triplets using one element of FPL-53 glass they are made in small series but over time cover apertures from 92mm to 230mm. Their 185mm aperture refractor costs ~18000 euros!

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Water level indicator having a remote and a local readout ...

The glass diffuser 14 spreads the light efficiently over an approximate 90° angle which is sufficient for viewing the level near the boiler drum. Larger angle dispersing elements would not hold up for long time periods in the boiler drum environment where temperatures may exceed 200° F.

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Method of assembling a glass spherical segment viewing ...

1. In a method of making a panoramic viewing aperture for a deep submersible vehicle which comprises the steps of 2. A method of making a panoramic viewing port according to claim 1 in which said step of assembling the glass dome mounting ring titanium gasket and

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