US3009293A - Glass burn-off machine - Google Patents

Glass burn-off machine Download PDF

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Publication number
US3009293A
US3009293A US734940A US73494058A US3009293A US 3009293 A US3009293 A US 3009293A US 734940 A US734940 A US 734940A US 73494058 A US73494058 A US 73494058A US 3009293 A US3009293 A US 3009293A
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United States
Prior art keywords
ring
burners
ware
burn
burner
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
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US734940A
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English (en)
Inventor
Eugene A Thebado
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.)
Corning Glass Works
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Corning Glass Works
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 Corning Glass Works filed Critical Corning Glass Works
Priority to US734940A priority Critical patent/US3009293A/en
Priority to BE578621A priority patent/BE578621A/fr
Application granted granted Critical
Publication of US3009293A publication Critical patent/US3009293A/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

  • the present invention relates to improvements in glass severing apparatus and particularly to an apparatus especially suitable for burning off cu-llet from ware r at has been made from a hand gather and is still attached to a blow iron.
  • an article holder rotatable about a vertical axis having a side entrance through which a piece of ware may be readily loaded thereinto, while still attached to a blow iron, and into a space surrounded by three radially retracted arcuate front burners spaced 120 from one another.
  • the burners After rotation of the holder for the predetermined time required to eifect burn-off, the burners are automatically withdrawn to their initial positions and rotation of the holder halted with its side entrance available for the ready removal of the ware and for reloading. Provisions are also included for radially shiftingthe burner supports to modify the positions to which the burners may be advanced in accordance with diameter of ware to be burned oif. Also, interchangeable burners of block form are employed to further increase the range of diameters of ware that may be burned oil. Other features and advantages of the invention will become apparent from the ensuing description of the preferred form thereof.
  • FIG. 1 is a side elevational view, partly in section, of a burn-oif machine embodying the invention with a blown article still attached to its blow iron associated therewith.
  • FIG. 1a is a sectional view, on an enlarged scale, taken generally along a vertical line as viewed in the direction indicated by arrows 1a-1a in FIG. 1.
  • FIG. 2 is a top plan view of the machine.
  • FIG. 2a is a sectional view, on an enlarged scale, of a fragment of the machine taken on line 2a2a of FIG. 2.
  • FIG. 3 is a side elevational view, on an enlarged scale, of one of the burner blocks, of its supporting means and of a fragment of the plate upon which such means is mounted.
  • FIG. 4 is a wiring and piping diagram.
  • the machine proper is mounted on an upright column :11 supported on a wheeled base 12.
  • Vertically adjustable on column 11 is a burner support plate 13 and a vertically adjustable ware support and drive assembly 1'4, respectively.
  • the assembly 14 is provided with a platform 21 upon which is mounted a track 22 (FIG. 1) extending through an arc of approximately 300.
  • a track 22 (FIG. 1) extending through an arc of approximately 300.
  • Rotatably arranged on track 22 is a chuck or ware holder supporting horseshoe shaped or open ring 25 (FIGS. 1, 2 and 4) also extending through an arc of approximately 300.
  • the open ring 25 To effect rotation of the open ring 25, it has a chain 35 anchored thereabout in mesh with which is one or both of two sprocket wheels such as 36 (FIGS. 1 and 2) carried on stub shafts 40 and 41, respectively, adapted to be.
  • two sprocket wheels such as 36 (FIGS. 1 and 2) carried on stub shafts 40 and 41, respectively, adapted to be.
  • Sprocket wheels 38 and 39 are adapted to be driven by chains 42 and 43 respectively trained thereabout and about similar sprocket wheels 34 and 33 (FIGS. 1 and 2) carried on a shaft 50 adapted to be driven by a motor M (FIG. 2) through a variable speed transmission 37, a drive belt 52 and a clutch C (FIGS. 1, 2 and 4), when an associated chuck engaging pneumatic unit.
  • a flat horseshoe or ring 54 (FIG. 1a) is clamped to the under side of ring 25 and projects into its bore to serve as a support for a horseshoe shaped adapter ring 56 which is adapted for the support of a further adapter ring such as 69 which in turn supports an article chuck or holder 57.
  • Plates 56 and 69 are, of course, interchangeable with similar adapter plates usable for the sup, port of chucks or holders of different sizes and shapes, depending upon the shape and diameter of the ware to be worked on.
  • the ring 25 always stops with its open side in register with the open side of platform 21.
  • the driven plate of chuck C is therefore provided with an aperture 28 (FIG. 4) engageable by the shaft of a clutch lock pneumatic unit 49 whenever air is being supplied thereto and the ring 25 is in the loading or unloading position shown.
  • Each of these assemblies comprises a support such as 74 provided with two laterally spaced horizontal shafts, such as 79, upon which a carriage 53 is slidably arranged.
  • a block burner carrier 45 is fixed to the one end of a pair of laterally spaced horizontal rods, such as 46, which are slidably projected through passages, such as 59, in an upward extension 53 of the carriage 53.
  • Carriage 53 is provided on its under side with a rack 93 in mesh with a pinion gear 94 carried on anarticulated shaft 95 that passes transversely through support 74.
  • One end of the shaft 95' carries -a hand wheel '96 (FIG. 2.) to enable the shaft to be turned to radially shift the carriage 53 and its supported burner 60 and the similar units 44 and 44 (FIG. 4) and their burners radially in accordance with the diameter of were to be burned oif.
  • Each block burner carrier such as 45 has a passage, such as 67, through its lower portion for supplying of fuel to a block burner such as 60 clamped therein by screws such as 61 and having a gaseous medium entrance passage, not shown, in its lower face in register with a suitable outlet in fuel supply passage 67.
  • Block burners such as 60 have an arcuate surface 70 (FIGS. 2 and 4) from which the gas flames issue toward the ware to be burned off.
  • the size of the block burner employed and the radius of the arcuate surface 70 depend upon the range of diameter of ware to be burned off. For example, a small burner having an arcuate surface of a radius of 1 /2" will satisfactorily serve for ware of a 2" to 4" in diameter range, whereas for ware having a diameter range of 4" to 6" a larger burner having an arcuate surface of 2%" radius is employed.
  • the pneumatic units such as 44 receive operating fluid from a conventional four-way valve V (FIG. 4), as do the pneumatic units 49 and 64, to move their burners, such as 60, radially between loading and active positions.
  • a magnet 80 of valve V is operable over a circuit including the back contact and spring 86 of a timer T and contacts 51 closed by ware occupying the holder 57, to posi tion the spool 30 of valve V as required to feed operating air to the outer ends of the units such as 44 and to the chuck engaging pneumatic unit 64.
  • a magnet 88 of valve V is operable over a circuit including contacts 71 momentarily closeable by a lobe 73 on ring and the front contact and spring 86 of timer T to restore the spool to its initial position. Since contacts 71 are momentarily closed near the end of each revolution of ring 25 and since a burn-off operation requires the elapsed time of several or many revolutions of such ring, the contacts 71 are connected in series with the front contact and spring 86 of timer T which are only closed after the necessary time has elapsed to effect the burn-ofl operation for which the timer is set.
  • FIG. 4 the respective elements are shown in the positions that prevail prior to the initiation of a burn-off operation.
  • the spool 30 of valve V is in such position as to supply operating fluid to the front ends of the pneumatic units 44, 44 and 44 and to the clutch lock pneumatic unit 49.
  • switch S is first closed to operate motor M.
  • a blown article such as a bulb 75, still attached to a blow iron 76 (FIG. 1) is suspended from holder 57 (FIG. la).
  • a controlling device comprising the hinged arm 77 (FIG. 4) closes contacts 51 which directly complete the operating circuit of motor 87 of the timing device T.
  • This circuit extends from an X terminal of a suitable current source, through contacts 51 and the motor of T to a Y terminal of the same source.
  • Contacts 51 also close the traced circuit from terminal X through the timer contact spring 86 and its back contact and through the magnet 80 of valve V to a Y terminal of such current source.
  • valve V is accordingly shifted to its leftward position thereby, in known manner reversing the fluid supply and exhaust passages to lines 81 and 84 in common communication with the pneumatic units 44, 44 and 44 respectively, thereby causing them to advance their burners into burnoff relation with respect to the suspended bulb or article of ware 75.
  • air is also exhausted from the clutch locking unit 49 via the branch line 90, thus enabling its spring 91 of such unit to withdraw its shaft from locking engagement with the driven plate of clutch C, thereby freeing the clutch for rotation.
  • air is supplied to the pneumatic clutch engaging unit 64 via a branch line 99 to effect rotation of the ware.
  • timing device T may be of any of a number of commercially available devices.
  • the particular timing device shown is illustrated and described as style 310 WD 189 in a circular entitled, Cramer Time Delay Relays distributed by the R. W. Cramer Co., Inc, Centerbrook and Ballouville, Connecticut.
  • annular workpiece supporting ring having a side entrance through which a workpiece may be passed and suspended from the bore defining border of such ring, a plurality of arcuate faced burners arranged in circumferentially spaced relation about a center coaxial with the bore of such ring with the space between two adjacent burners in vertical register with the side entrance of said ring to facilitate the lateral introduction of a workpiece thereinto via its side entrance, said burners being located at a level below the ring at which it is desired to sever moil from a workpiece, means for rotating said ring, means for radially moving said burners into and out of burn-off positions, a controlling device for said means and for the ring rotating means, a timing device for determing the time allowed for a burn-off operation, means actuated by a workpiece occupying said ring to bring about the operation of said controlling device to effect the movement of said burners into their bum-off positions and the rotation of said
  • the means for controlling the four-Way valve includes an operating circuit therefor closed 'by the workpiece and an operating circuit therefor closed jointly by the ring and timing device respectively.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Feeding And Controlling Fuel (AREA)
US734940A 1958-05-13 1958-05-13 Glass burn-off machine Expired - Lifetime US3009293A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US734940A US3009293A (en) 1958-05-13 1958-05-13 Glass burn-off machine
BE578621A BE578621A (fr) 1958-05-13 1959-05-12 Dispositif pour le rebrûlage du verre.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US734940A US3009293A (en) 1958-05-13 1958-05-13 Glass burn-off machine

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US3009293A true US3009293A (en) 1961-11-21

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US (1) US3009293A (fr)
BE (1) BE578621A (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US916209A (en) * 1907-08-19 1909-03-23 George M Smallwood Tire-heater.
US1606128A (en) * 1925-08-13 1926-11-09 Libbey Glass Mfg Co Chuck for stem ware
US2416121A (en) * 1943-02-03 1947-02-18 Owens Illinois Glass Co Burn-off machine
US2513542A (en) * 1945-11-23 1950-07-04 Weston Glass Company Relatively adjustable gas burner for burning-off glassware
US2554339A (en) * 1949-03-28 1951-05-22 Chamberlain Inc Glass cutting machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US916209A (en) * 1907-08-19 1909-03-23 George M Smallwood Tire-heater.
US1606128A (en) * 1925-08-13 1926-11-09 Libbey Glass Mfg Co Chuck for stem ware
US2416121A (en) * 1943-02-03 1947-02-18 Owens Illinois Glass Co Burn-off machine
US2513542A (en) * 1945-11-23 1950-07-04 Weston Glass Company Relatively adjustable gas burner for burning-off glassware
US2554339A (en) * 1949-03-28 1951-05-22 Chamberlain Inc Glass cutting machine

Also Published As

Publication number Publication date
BE578621A (fr) 1959-11-12

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