US2745131A - Device for the cleaning of sight glasses allowing inspection of high vacuum rooms - Google Patents

Device for the cleaning of sight glasses allowing inspection of high vacuum rooms Download PDF

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Publication number
US2745131A
US2745131A US216231A US21623151A US2745131A US 2745131 A US2745131 A US 2745131A US 216231 A US216231 A US 216231A US 21623151 A US21623151 A US 21623151A US 2745131 A US2745131 A US 2745131A
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United States
Prior art keywords
high vacuum
cleaning
sight glasses
allowing inspection
window
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US216231A
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English (en)
Inventor
Auwarter Max
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Individual
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Individual
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Publication of US2745131A publication Critical patent/US2745131A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/06—Vacuum casting, i.e. making use of vacuum to fill the mould

Definitions

  • the melting charge is even deliberately overheated, in order to expell undesirable material components-impurities or the like-be it inform of vapors, or gases, or in another way.
  • heavy deposits of solid matters settle, on the observation glasses, forming light absorbent layers which deprive the observer of the sight of the materials inside the high vacuum vessel.
  • FIG. 1 represents said device in elevation
  • Fig. 2 corresponds to a partial top view
  • FIG. 1 indicates the boundary walls of high vacuum room 2.
  • the upper closing wall shows at 3 a headpiece serving to take up the observation glass 4 and is sealed by a packing 5 of appropriate design against the high vacuum in room 2.
  • a protection glass 8 is arranged in front of sight glass 4 and in direction of room 2; said protection glass is exchangeably inserted into support 9.
  • Operating shaft 10, which at 11 turns into a handle, likewise passes thru headpiece 3.
  • a packing 12 which can be executed in the form of a high vacuum resistant seal, makes shaft 10 perfectly tight as against room 2.
  • the shaft end 10 bears with the aid of set screw 13 a bushing 14, which at 15 turns into a sector-shaped disk which serves as a screen. At least one edge of screen 15 is trimmed with bristles 16.
  • the brush formed in such a manner may suitably consist of metal bristles.
  • the figures of the drawing show the brush 16 just at the moment'when it joins the observation glass 8 and shoves offor brushes oifits solid coating. This can be done by appropriately swinging the handle 11 to and fro.
  • the part of screen 15 not covered with bristles is pushed under glass 8, so that this latter should be protected as much as possible from the danger of being coated.
  • the sector-shaped screen is of such angular extent that it can cover completely the glass 8. Nevertheless, if such a layer has been freshly formed before the next observation should take place, said coating will be easily removed by operating the bristles 16.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sampling And Sample Adjustment (AREA)
US216231A 1950-03-22 1951-03-17 Device for the cleaning of sight glasses allowing inspection of high vacuum rooms Expired - Lifetime US2745131A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH2745131X 1950-03-22

Publications (1)

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US2745131A true US2745131A (en) 1956-05-15

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ID=4571442

Family Applications (1)

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US216231A Expired - Lifetime US2745131A (en) 1950-03-22 1951-03-17 Device for the cleaning of sight glasses allowing inspection of high vacuum rooms

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US (1) US2745131A (US20110009641A1-20110113-C00256.png)
BE (1) BE502018A (US20110009641A1-20110113-C00256.png)
CH (1) CH278657A (US20110009641A1-20110113-C00256.png)
FR (1) FR1034243A (US20110009641A1-20110113-C00256.png)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3189415A (en) * 1958-07-30 1965-06-15 Siemens Ag Device for crucible-free zone melting
US3289557A (en) * 1964-11-09 1966-12-06 Garcia Thomas Extreme environments protective camera enclosure
US4112763A (en) * 1975-07-01 1978-09-12 Centre De Recherches Metallurgiques-Centrum Voor Research In De Metallurgie Inspecting the interior of an enclosure
US4701959A (en) * 1984-07-18 1987-10-20 Nec Corporation Fingerprint input device equipped with a cleaner for finger-impressing surface
US6111249A (en) * 1998-07-17 2000-08-29 Hydrolab Corporation Submergible optical sensor housing with protective shutter and methods of operation and manufacture
EP3940316A1 (de) * 2020-07-16 2022-01-19 Vaillant GmbH Phasenwechselanzeige

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE961918C (de) * 1955-01-08 1957-04-11 Heraeus Gmbh W C Durchblickfenster fuer Vakuumanlagen mit Reinigungsvorrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US737439A (en) * 1902-11-08 1903-08-25 John Chapman Michie Meter-glass-cleaning device.
US1072832A (en) * 1913-05-05 1913-09-09 Edwin U Daines Window-cleaning device.
US2423604A (en) * 1944-06-12 1947-07-08 Claude M Mccord Wiper and valve for register box windows

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US737439A (en) * 1902-11-08 1903-08-25 John Chapman Michie Meter-glass-cleaning device.
US1072832A (en) * 1913-05-05 1913-09-09 Edwin U Daines Window-cleaning device.
US2423604A (en) * 1944-06-12 1947-07-08 Claude M Mccord Wiper and valve for register box windows

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3189415A (en) * 1958-07-30 1965-06-15 Siemens Ag Device for crucible-free zone melting
US3289557A (en) * 1964-11-09 1966-12-06 Garcia Thomas Extreme environments protective camera enclosure
US4112763A (en) * 1975-07-01 1978-09-12 Centre De Recherches Metallurgiques-Centrum Voor Research In De Metallurgie Inspecting the interior of an enclosure
US4701959A (en) * 1984-07-18 1987-10-20 Nec Corporation Fingerprint input device equipped with a cleaner for finger-impressing surface
US6111249A (en) * 1998-07-17 2000-08-29 Hydrolab Corporation Submergible optical sensor housing with protective shutter and methods of operation and manufacture
EP3940316A1 (de) * 2020-07-16 2022-01-19 Vaillant GmbH Phasenwechselanzeige

Also Published As

Publication number Publication date
CH278657A (de) 1951-10-31
BE502018A (US20110009641A1-20110113-C00256.png)
FR1034243A (fr) 1953-07-21

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