US2101673A - Sealing-off apparatus - Google Patents

Sealing-off apparatus Download PDF

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Publication number
US2101673A
US2101673A US54773A US5477335A US2101673A US 2101673 A US2101673 A US 2101673A US 54773 A US54773 A US 54773A US 5477335 A US5477335 A US 5477335A US 2101673 A US2101673 A US 2101673A
Authority
US
United States
Prior art keywords
tube
jaws
sealing
light
vessel
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
US54773A
Other languages
English (en)
Inventor
Neumann Michael De
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Application granted granted Critical
Publication of US2101673A publication Critical patent/US2101673A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/40—Closing vessels

Definitions

  • Fig. 1 is a diagrammatic view of apparatus comprising my invention
  • Fig. 2 is a plan view
  • Fig. 3 is an elevation showing the pinching or sealing-oil jaws.
  • the apparatus illustrated consists broadly of three parts, namely, a projector, an amplifier, and a closing-0d device.
  • the projection system consists of an electric lamp Ill, and light concentrating lenses II and I 2.
  • said projection system and a photo-electric cell i3 serve for the optical delineation and objective detection of the outline of the glass pump tube It of an incandescent lamp i5 which is to be sealed ofi.
  • the photoelectric cell energizes an amplifier ll, which may be a vacuum amplifier tube and is coupled to a vapor discharge tube l8.
  • the amplification might be simplified by using an exhaust tube of colored or matte material so that the quantity 01 light falling on the light sensitive element when the exhaust tube changes shape is thereby increased.
  • An apparatus for sealing-0E a vessel containing a gas under pressure greater than atmospheric and provided with a vitreous tube connected to said vessel which comprises a pair of jaws, means for heating a portion of said tube to cause 15 it to become plastic and means actuated by the incipient change or shape of said tube due to the internal gas pressure for closing said jaws against the plastic tube to compress and close it.
  • An apparatus for sealing-01f a vessel con- 0 taining a gas under pressure greater than atmospheric and provided with a vitreoustube connected to said vessel which comprises a light source disposed at one side of said tube for projecting a light beampast said tube, a light-sensitive cell disposed on the opposite side of said tube in the path of said light beam so as to-intercept the shadow of said tube, a pair of jaws, means for heating a portion of said tube to cause it to become plastic and means actuated by said lightsensitive cell for closing said jaws against the plastic tube to compress and close it when the shadow of the tube thereon is increased in size due to the incipient change of shape thereof because of internal gas pressure. 3.
  • An apparatus for sealing-on a vessel contain- .ing a gas under pressure greater than atmospheric and provided with a vitreous tube connected to said vessel which comprises a light source disposed at one side of said tubei'or projecting a 40 light beam past said tube, a, light-sensitive ceildisposed on the opposite side of said tube in the path of said light beam so as to intercept the shadow of said tube, a pair of jaws, means for heating a portion of said tube to cause it to become plastic and a solenoid disposed adjacent said jaws and actuated by said light-sensitive cell for closing said jaws against the plastic tube to compress and close it when the shadow of the tube thereon is increased insize due to the incipient change of shape thereof because of internal gas pressure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Closing Of Containers (AREA)
US54773A 1934-12-24 1935-12-16 Sealing-off apparatus Expired - Lifetime US2101673A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE460861X 1934-12-24

Publications (1)

Publication Number Publication Date
US2101673A true US2101673A (en) 1937-12-07

Family

ID=6539789

Family Applications (1)

Application Number Title Priority Date Filing Date
US54773A Expired - Lifetime US2101673A (en) 1934-12-24 1935-12-16 Sealing-off apparatus

Country Status (6)

Country Link
US (1) US2101673A (enrdf_load_stackoverflow)
AT (2) AT144597B (enrdf_load_stackoverflow)
CH (1) CH187532A (enrdf_load_stackoverflow)
FR (1) FR46802E (enrdf_load_stackoverflow)
GB (1) GB460861A (enrdf_load_stackoverflow)
NL (1) NL43942C (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2934860A (en) * 1955-03-01 1960-05-03 Rca Corp Tip-off apparatus for electron tubes
US3079774A (en) * 1959-04-02 1963-03-05 Gen Electric Quartz lamp sealing machine control
US3291589A (en) * 1963-01-09 1966-12-13 Owens Illinois Inc Apparatus for sealing hollow glass parts
US3472638A (en) * 1967-08-17 1969-10-14 Kaye Thermometer Corp Method and apparatus for making a contraction in the bore of a glass clinical thermometer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2934860A (en) * 1955-03-01 1960-05-03 Rca Corp Tip-off apparatus for electron tubes
US3079774A (en) * 1959-04-02 1963-03-05 Gen Electric Quartz lamp sealing machine control
US3291589A (en) * 1963-01-09 1966-12-13 Owens Illinois Inc Apparatus for sealing hollow glass parts
US3472638A (en) * 1967-08-17 1969-10-14 Kaye Thermometer Corp Method and apparatus for making a contraction in the bore of a glass clinical thermometer

Also Published As

Publication number Publication date
NL43942C (enrdf_load_stackoverflow) 1938-09-15
AT146438B (de) 1936-07-10
CH187532A (de) 1936-11-15
GB460861A (en) 1937-02-05
AT144597B (de) 1936-02-10
FR46802E (fr) 1936-09-12

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