US1875819A - Method of frosting the inner surface of alpha glass bulb - Google Patents

Method of frosting the inner surface of alpha glass bulb Download PDF

Info

Publication number
US1875819A
US1875819A US480278A US48027830A US1875819A US 1875819 A US1875819 A US 1875819A US 480278 A US480278 A US 480278A US 48027830 A US48027830 A US 48027830A US 1875819 A US1875819 A US 1875819A
Authority
US
United States
Prior art keywords
liquid
bulb
frosting
glass bulb
powder
Prior art date
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
Application number
US480278A
Other languages
English (en)
Inventor
Naruse Tomisaburo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US1875819A publication Critical patent/US1875819A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C15/00—Surface treatment of glass, not in the form of fibres or filaments, by etching

Definitions

  • This invention relates to a method offrosting a portion of the inner surface of a glass bulb of an electric lamp; consisting in first injecting in the bulb a special etching liquid through a narrow tube and thereupon extracting said liquid therefrom; said liquid containing a powder selected from a group consisting of powdered starch and cornflour, which acts to give cohesiveness to the liquid, to stir the liquid when it is injected in the bulb, whereby a sharp, clear, dividing line, between the frosted and transparent parts of the bulb and the smooth even surface of the frosted part are obtained.
  • the purpose of the invention is to obtain by the aid of a special etching, liquid and quickly the uniform edge or dividing line and the smooth even surface of the frosted part, whereby beautifullooking lamps can be made.
  • the liquid causes vortex motion while being pouredinto the bulb through a narrow tube and numerous wavelets are produced on the surface of the liquid, causing a zigzag edge of the frosted surface, or the liquid splashes and stains such part as is desired to be left transparent.
  • This invention aims. at securing perfect finish of the frosted part of an electric bulb, by removing such defects as are experienced when a corrosive liquid without a powder is used, namely:
  • this method employs an etching liquid containing some powder (e. g. starch, corn flour), which affects the etching action of the liquid very slightly and the specific gravit of which is somewhat greater than that 0 any other elements contained therein.
  • some powder e. g. starch, corn flour
  • the desired etching liquid can be ob tained first by mixing together the above mentioned elements and then by mixing into it American flour whose quantity is 20% of the mixture. It would be needless to say that the elements should vary according to the nature of the glass, and it has been found that 30 parts each of hydrogen fluoride and ammonium fluoride are eflective. And as to ,the relation between the specific gravity of the liquid and that of the powder it is enough if the powder be heavy enough to sink easily in the liquid.
  • Fig. 1 shows in elevation an apparatus for this method, partly in section.
  • Fig. 2 shows other example for this method.
  • corrosive liquid is injected and sucked out of the bulb (1) by one or two narrow tubes (2).
  • the liquid (5) is saved in the tank (3) and to inject the liquidin the bulb push the'piston (4) downwards as the arrow (at) shows, and to suck the liquid out of the bulb pull the piston (4i) upwards as the arrow ((1') shows.
  • the liquid (5) is saved in the tank (3) and when the tank is situated at the position that the liquid level is placed above the bulb (1) the cock (6) is opened, then the liquid in- 1' ected in the bulb, until the liquid level in the bulb reaches to the required height. After corrosion is finished, the tank is lowered until all the liquid in the bulb is sucked out.
  • a method of frosting a portion of the inner surface of a glass bulb of an electric lamp consisting in first injecting in the bulb liquid to alter the etching action in the a special etching liquid through a narrow tube and thereupon extracting said liquid therefrom; said liquid containing a powdered material selected from a group consisting of starch and cornfiour, which acts to give cohesiveness to the liquid,'whereby a sharp, clear, dividing line, between the frosted and transparent parts of the bulb is obtained said 'powdered material settling in the etching parts where the material has settled.
  • a method of'frosting a portion of the inner surface of a glass bulb of an electric lamp consisting in first injecting in the bulb a special etching liquid through a narrow tube and thereupon extracting said liquid therefrom; said liquid containing a powder selected from agroiip consisting of starch and cornflour, which acts to give cohesiveness answers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Surface Treatment Of Glass (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
US480278A 1929-09-20 1930-09-06 Method of frosting the inner surface of alpha glass bulb Expired - Lifetime US1875819A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP369887X 1929-09-20

Publications (1)

Publication Number Publication Date
US1875819A true US1875819A (en) 1932-09-06

Family

ID=12485114

Family Applications (1)

Application Number Title Priority Date Filing Date
US480278A Expired - Lifetime US1875819A (en) 1929-09-20 1930-09-06 Method of frosting the inner surface of alpha glass bulb

Country Status (5)

Country Link
US (1) US1875819A (enrdf_load_stackoverflow)
DE (1) DE663883C (enrdf_load_stackoverflow)
FR (1) FR702317A (enrdf_load_stackoverflow)
GB (1) GB369887A (enrdf_load_stackoverflow)
NL (1) NL54255C (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE743907C (de) * 1937-01-09 1944-01-05 Oesterreichische Glasfabriken Verfahren zur Herstellung von das Licht diffus zerstreuenden Glasgegenstaenden, insbesondere Gluehlampenkolben, UEberfangglocken, Beleuchtungsglaesern u. dgl.
US2816399A (en) * 1953-06-09 1957-12-17 Soltysik Zeno Method of forming a well in light bulbs
US2955927A (en) * 1957-02-21 1960-10-11 Ogata Hisae Light-diffusing glass and process for making the same
US3043362A (en) * 1958-05-26 1962-07-10 Applic Et De Const Pour Materi Apparatus for machining a piece of work by means of an erosive fluid
US3058866A (en) * 1958-08-27 1962-10-16 Luma Lampan Aktiebolag Method of producing a light-diffusing layer on glass surfaces, especially on the inside of electric lamp envelopes
US3148088A (en) * 1961-08-25 1964-09-08 Hanson Van Winkle Munning Co Method for treating hollow articles having one closed end

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2954155A (en) * 1958-09-17 1960-09-27 Thompson Ramo Wooldridge Inc Compressor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE743907C (de) * 1937-01-09 1944-01-05 Oesterreichische Glasfabriken Verfahren zur Herstellung von das Licht diffus zerstreuenden Glasgegenstaenden, insbesondere Gluehlampenkolben, UEberfangglocken, Beleuchtungsglaesern u. dgl.
US2816399A (en) * 1953-06-09 1957-12-17 Soltysik Zeno Method of forming a well in light bulbs
US2955927A (en) * 1957-02-21 1960-10-11 Ogata Hisae Light-diffusing glass and process for making the same
US3043362A (en) * 1958-05-26 1962-07-10 Applic Et De Const Pour Materi Apparatus for machining a piece of work by means of an erosive fluid
US3058866A (en) * 1958-08-27 1962-10-16 Luma Lampan Aktiebolag Method of producing a light-diffusing layer on glass surfaces, especially on the inside of electric lamp envelopes
US3148088A (en) * 1961-08-25 1964-09-08 Hanson Van Winkle Munning Co Method for treating hollow articles having one closed end

Also Published As

Publication number Publication date
FR702317A (fr) 1931-04-04
GB369887A (en) 1932-03-31
NL54255C (enrdf_load_stackoverflow)
DE663883C (de) 1938-08-16

Similar Documents

Publication Publication Date Title
US1875819A (en) Method of frosting the inner surface of alpha glass bulb
US2460993A (en) Apparatus for atomizing metal
US1997375A (en) Method to frost the inner surface of a glass bulb for electric lamps
US3638919A (en) Slurry agitator
DE807206C (de) Vorrichtung zum Hebern von Fluessigkeiten
Brown XLVIII. The surface tensions of mixtures of normal propyl alcohol and benzene
Schütz Fractionation by adsorption and crystallization on foam. Part I.—Method and principles
GB934426A (en) Improvements in wet sedimentation apparatus
CN217989863U (zh) 一种锂离子电池实验用正、负极涂布加料装置
DE480425C (de) Vorrichtung zur Aufbereitung von Stoffen nach dem Schwimmverfahren
US250362A (en) Peters
US2054707A (en) Process of manufacturing inside frosted bulbs
US3035959A (en) Sorting and etching apparatus and method
CN219224468U (zh) 一种砂子含泥量测定装置
SU452603A1 (ru) Способ рафинировани жидких расплавов
JPH039761B2 (enrdf_load_stackoverflow)
GB652933A (en) Improvements in or relating to methods of providing thin coherent substantially smooth layers on rough surfaces inside vessels
Davis A simple, inexpensive quinhydrone cell for rapid work
Benedict An Automatic Pipette for Caustic Soda Solution.
Swinburne et al. The physics of ore flotation
McCool et al. Further studies on Michigan soil profiles with special reference to dispersed materials
GB2024184A (en) Heavy liquids
JPS5737260A (en) Composition for separating blood serum or blood plasma
DE1749045U (de) Geraet zur ausfaellung fester stoffe aus fluessigkeiten, insbesondere wasser.
DE495681C (de) Verfahren zum Wiedergewinnen von Fasern aus faserhaltigen Fluessigkeiten