US1659590A - Glass-severing method and apparatus therefor - Google Patents

Glass-severing method and apparatus therefor Download PDF

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Publication number
US1659590A
US1659590A US653085A US65308523A US1659590A US 1659590 A US1659590 A US 1659590A US 653085 A US653085 A US 653085A US 65308523 A US65308523 A US 65308523A US 1659590 A US1659590 A US 1659590A
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US
United States
Prior art keywords
burner
article
bulb
glass
severing
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
US653085A
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English (en)
Inventor
Carl A Brown
Andreas C Nielsen
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
Priority to BE219677D priority Critical patent/BE219677A/xx
Application filed by General Electric Co filed Critical General Electric Co
Priority to US653085A priority patent/US1659590A/en
Application granted granted Critical
Publication of US1659590A publication Critical patent/US1659590A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B33/00—Severing cooled glass
    • C03B33/08—Severing cooled glass by fusing, i.e. by melting through the glass
    • C03B33/085—Tubes, rods or hollow products

Definitions

  • Our invention relates to methods and apparatus for severing blown glass articles such as bulbs, from the tubing or the surplus neck portion to which they are attached.
  • Our invention may be used to advantage in connection with the production of blown articles from tubing as sclosed in Hofstetter and Rippl Patent No. 1,330,707. It may also be used to advantage, in connection with the production of blown articles by the blow-pipe gather method, to sever the blown article from the surplus neck portion which connects it to the blow iron.
  • the severance of the blown article is accomplished by heat alone and still the product is left with a clean sharp edge in the plane of severance. Moreover special annealing is not required.
  • our invention does not re quire inversion of the bulb. Moreover our invention is a plicable to the removal of finished bulbs f rom the blow-pipe, which is not true of the second method.
  • Fig. 1 is a side elevation partially broken away of one form of a paratus embodying our invention
  • Fig. 2 IS a side elevation on an enlarged scale of the more important parts of the apparatus:
  • Fig. 3 is a top lan view of the cutting-E burner in closed position; and
  • Fig. 4 1s a side elevation of a cut-off bulb.
  • 12 and 13 are two pending semi-circular segments of a ring burner having orifices around its inner circumference so as to direct flames toward a common center when the segments are brought together.
  • Gas and air are supplied to said burner by pipes 14, 15, 16 and 17 leading to mixing chambers 18 and 19 with which said burner
  • the said segments are supported by rods 20 and 21 which are mounted in blocks 22 and 23 pivoted at 24 and 25 to arms 26 and 27 extending from a hub 28.
  • Springs 29 and 30 extend from said hub to said blocks.
  • the saidhub does not rotate, being held against rotation by a standard 31 which passes through one end of the arm 26 and is supported upon the bed 32 of the machine.
  • the hub 28 is loosely mounted on a hollow shaft 33, being held in position by the collars 34 and 35'carried by said shaft.
  • the hollow shaft 33 extends down through the bed of the machine and is supported by the collar 36 carried by an arm 37 extending from a sleeve 38 which rides on a vertical shaft 39 supported on the base of the machine.
  • Extending from said sleeve is a roller40 which rides on a cam 41 so shaped as to cause the said roller to be depressed or elevated .at certain intervals and to cause a depression or elevation of the parts carried by sleeve 38.
  • the hollow shaft 33 has extending therethrough a rod 42 which extends and has-apair of links 43 at its upper end which are pivotally connected to gripper pivotally supported at their lower ends on arms 46 and 47 extending from planeof severance.
  • the I the entire length thereof the collar 35.
  • the rod 42 is carried by an arm 48 extending from a sleeve 49 riding on the shaft 39 and having a roller 50 extending therefrom which rides on a cam 51.
  • Rotation is given to the shaft 33 by a, central pinion or gear 52 mounted on a main drive shaft 53. In case the bulb is rotated by other means, the rotation of shaft 33 is synchronous therewith.
  • the gear 52 meshes with pinion 53 carried by a bracket 54 which also carries idler 55 which meshes with pinion 53 and also with the pinion 56 splined upon the shaft 33.
  • An anti-friction bearing 57 is provided between collar 36 and collar 58 on shaft 33.
  • the air and gas pipes 14 and 15 and also 16 and 17, are connected respectively to the distributors 59 and 60 controlled by valves 61 and 62.
  • Flexible connections 63 and 64 are provided between said mixing chambers and the pipes 14, 15, 16 and 17.
  • An air reservoir 65 has a nozzle 66 connected thereto through the hollow standard 31 and the blast from said nozzle is directed against the bulb in its lowermost position.
  • Fig. 2 the apparatus is shown with the burner segments and rippers open but in the raised position. T e parts are brought to the position shown in Fig. 1 when the rod 42 is lowered by cam 51 as this closes grippers 44'and 45 and allows springs 29 and 30 to close the burner segments.
  • the gas flame directed against the bulb neck then fuses and cuts through it, the bulb being rotated meanwhile.
  • the shaft 33 then lowers causing the bulb to be drawn down.
  • the burners are carried down and follow the bulb directing their flame against the upper edge. This is a very important feature of our invention since the play of the flame upon the upper edge of the bulb neck gathers back on the solid edge of the bulb neck. the hot and plastic film of glass which has been produced by separation of the bulb from the tubing.
  • the result is that the upper edge is glazed and rounded which gives it a very desirable finish.
  • the rod 42 is then raised to separate the grippers 44 and 45, thus'releasing the bulb which may be directed toward a chute (not shown) by a blast of air from the nozzle 66.
  • the opening of the grippers 44 and 45 also serves to force the burner segments 12 and 13 apart with a compression of the springs 29 and 30.
  • the burner segments are brought together by expansion of said springs.
  • Y 5 In an apparatus for severing a hollow glass article from a tubular glass body, the combination of a burner shaped to surround the said body, means for gripping the said "article, supports for said burner and gri ping means, and means for simultaneous y moving said gripping means and burner relatively to said body to cause the said burnerto follow the line of severance as the said article is drawn away from the said body.
  • a burner comprising movable segments' adapted to be closed around the said body, means for gripping the said article, supports for said burner and gripping means, means for simultaneously movsequently Ill ing said gripping means and burner rela-.
  • a burner comprising movable segments adapted to be closed aroundthe said body, segmental gripping means adapted to be closed around said article, supports for said burner and gripping means, means for simultaneously moving said gripping means and burner relatively to said'body to cause the said burner to follow the line of severance as the said article is drawn away from the said body, and means for opening and closing the burner and grip ping segments in proper sequence with the operation of saidmovmg means.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
US653085A 1923-07-23 1923-07-23 Glass-severing method and apparatus therefor Expired - Lifetime US1659590A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BE219677D BE219677A (en:Method) 1923-07-23
US653085A US1659590A (en) 1923-07-23 1923-07-23 Glass-severing method and apparatus therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US653085A US1659590A (en) 1923-07-23 1923-07-23 Glass-severing method and apparatus therefor

Publications (1)

Publication Number Publication Date
US1659590A true US1659590A (en) 1928-02-21

Family

ID=24619441

Family Applications (1)

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US653085A Expired - Lifetime US1659590A (en) 1923-07-23 1923-07-23 Glass-severing method and apparatus therefor

Country Status (2)

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US (1) US1659590A (en:Method)
BE (1) BE219677A (en:Method)

Also Published As

Publication number Publication date
BE219677A (en:Method)

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