US2178504A - Glass polishing apparatus - Google Patents

Glass polishing apparatus Download PDF

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Publication number
US2178504A
US2178504A US263622A US26362239A US2178504A US 2178504 A US2178504 A US 2178504A US 263622 A US263622 A US 263622A US 26362239 A US26362239 A US 26362239A US 2178504 A US2178504 A US 2178504A
Authority
US
United States
Prior art keywords
rouge
water
glass
shaft
polishing
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
US263622A
Other languages
English (en)
Inventor
Waldron Frederic Barnes
Griffin James Harris
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.)
Pilkington Group Ltd
Original Assignee
Pilkington Brothers Ltd
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 Pilkington Brothers Ltd filed Critical Pilkington Brothers Ltd
Application granted granted Critical
Publication of US2178504A publication Critical patent/US2178504A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B23/00—Obtaining nickel or cobalt
    • C22B23/06—Refining
    • C22B23/065—Refining carbonyl methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
    • B24B7/22—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
    • B24B7/24—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain for grinding or polishing glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
    • B24B7/22—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
    • B24B7/24—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain for grinding or polishing glass
    • B24B7/242—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain for grinding or polishing glass for plate glass
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S29/00—Metal working
    • Y10S29/068—Hollow spindle contains

Definitions

  • This invention relates to glass polishing apparatus operating on the underside of glass, and has for its object apparatus for supplying p01- ishing medium to rotating polishing tools.
  • the polishing medium commonly used is rouge and water and in this specification the word rouge will be used to designate any suitable polishing medium.
  • Each rotating polishing tool comprises a plurality of discs rubbing on the 10 glass, and the rouge and water has to be supplied to the glass in the spaces between the polishing discs.
  • rouge and water is continuously passed through a conduit system which comprises a main supply pipe passing up the shaft of the polishing tool and from the main supply pipe a supply pipe extends to each point at which rouge and water is to be supplied and continues as a return pipe to return rouge and water to the bore of the shaft.
  • An aperture is formed in each supply pipe at each said point and pressure is maintained in each supply pipe whereby rouge and water is forced out of each aperture to reach the glass.
  • Figure 1 is a plan view of a polishing tool seen through the glass strip above it;
  • Figure 2 is a vertical section through the polishing tool along the line AA of Figure 1;
  • Figure 3 is a similar section showing an alternative form of the invention, the polishing discs being omitted;
  • Figure 4 is a section through the form of nozzle shown in Figure 3 on an enlarged scale.
  • Figure 5 is a plan view showing an alternative form of the invention.
  • the underside of the glass strip l is polished by the felt covered discs 2 on the frame 3, which is attached to the disc 4, carried on the hollow shaft 5.
  • the shaft 5 is supported and rotated by means attached at 6 which are not shown.
  • Two concentric tubes, an outer I and an inner 8, pass through the shaft 5.
  • the outer tube 1 is screwed 0 into the lower part 9 of a distributing box In, which is fixed to the shaft 5 by the flange H.
  • the inner tube 8 is stationary and fits in the inner sleeve l2 of the box In, which can turn about it.
  • the outer tube I is supported laterally by the ring I3, while the inner tube 8 carries a spider l4 supported on a ball bearing I5 carried on a ring l6 within the shaft.
  • the in-- net tube 8 which is the main supply pipe, is 5 connected with a pipe I! from which rouge and water are supplied.
  • the inner tube 8 terminates in a space I8 having three outlets l9, to each of which a rubber supply pipe 20 is 10 connected.
  • Each pipe leads to one branch of an inverted V tube 2
  • the three inlets 23 15 communicate with an annular space 24 in the box Ill, which leads into the space between the inner tube 8 and the outer tube 1.
  • the rouge and water supplied by the pipe I1 thus passes up the main supply pipe 8 to the-distributing box l0, and from there through the three supply pipes 20, the three V tubes 2
  • the lower end of the tube 1 carries a washer 26; held to it by a screw cap 21, the washer leaving a restricted annular space outside the inner tube, through which the rouge and water issues and then passes through the 3 spider l4 into a sump shown diagrammatically at 28 from which it can be circulated by the pump 29 back to the pipe l1.
  • the rouge and water is kept in continual circulation through the pipes and dis- 4o tributor box at a rate suflicient to prevent any deposition of rouge and a sufiicient pressure is maintained in the V tubes 2
  • the pressure at these points can be adjusted by varying the size of the outlet at the bottom of the tube 1,-that is to say, by varying the annular space between the washer 26 and the inner tube 8. Also for a given size of outlet, the pressure can be varied by varying the rate of circulation of the rouge and water. By these means, therefore, the amount of rouge and water issuing from the jet holes 30 can be adjusted.
  • the rouge and water can be supplied by the a invention at any desired points between the polishing discs, and at any desired number of points.
  • the rouge and water can be supplied as shown, at points close to polishing discs, there is no waste of rouge by reason of the rouge and water dripping off the glass, because the rouge and water splashed on to the glass by the jets is immediately caught by a polishing disc and spread over the glass and felt.
  • the construction avoids the use of any gland on the return tube I and of any gland which has to be kept leakage-proof on the main supply tube 3, because any leakage between the inner tube 3 and the sleeve I2 is into the return pipe, and is harmless.
  • the inner tube 3 may, however, be ilxed to the distributor box so as to rotate with the tool, and then a gland must be provided to afford a supply connection at its lower end.
  • Figure 3 shows an alternative arrangement of the return pipes and an alternative form of nozzle for supply of rouge and water to the glass, Figure 4 being a section of the nozzle to an enlarged scale.
  • This form of nozzle is equally applicable to the arrangement of Figure 2.
  • the supply pipes 20 and the return pipes 22 are connected to a bent pipe 32 fixed to the disc 4.
  • a vertical branch pipe 33 rises from the pipe 32 and terminates in a rubber nozzle 34 ( Figure 4) which rubs against the glass and has its outlet restricted to a narrow slot by pressure against the glass.
  • Each return pipe 22 is carried down the bore of the shaft 5, passing through holes in the flange I I of the distributor box, and terminates in a valve 35, by which the pressure in each pipe may be adjusted.
  • the ball bearing 15 supporting the inher tube 3 is then carried on a spider 33 fixed to the shaft 5, provided with holes for the return pipes 22.
  • the bore of the shaft 5 may be used as the main return pipe, the ball bearing l5 being protected by a cap, and in this case the return pipes 22 may terminate at any point in the bore, or may terminate in a trough about the distributor box.
  • the radius of the trough must not be so great that the centrifugal force on the rouge and water equals the force of gravity tending to carry the rouge and water into the bore of the pipe. 7
  • Figure 5 shows an alternative arrangement of supply and return pipes applied to a polishing tool with a different arrangement of polishing discs 2.
  • the main supply pipe passing up the shaft of the tool terminates at a box 39 attached to the shaft by the flange 38.
  • a supply pipe 40 passes round the periphery of the disc 4 and is connected with a return pipe I. which passes down the shaft at 42.
  • the rouge and water is circulated through this conduit system as in the previously described arrangements.
  • the supply pipe I is connected to inverted V tubes II, as in Figure 2, which are supported on the disc 4 by columns 25, so that the points of the V tube are close below the glass.
  • At the point of each V tube is an aperture 30 through which a jet of rouge and water is forced against the glass. If the resistance to the flow of rouge and water through the return pipe is made large (as by the valve 35 of Figure 3) compared with the resistance in the supply pipe 40, the pressure in this pipe at each of the four V pipes 2
  • a conduit system and means for circulating rouge and water therethrough comprising a main supply pipe passing up the bore of the shaft of the tool, at least one distributing pipe therefrom extending to a radius at which rouge and water is to be supplied to the glass, the said distributing supply pipe being connected with a return pipe to return rouge and water to the bore of the shaft, at least one aperture in the distributing supply pipe at the point at which rouge and water is to be supplied and means for maintaining pressure in the supply pipes to force rouge and water through the aperture towards the underside of the glass.
  • each distributing supply pipe extending to a radius at which rouge and water is to be supplied to the glass, and continuing as a return pipe to return rouge and water to the distributing box, an annular space in the distributing box to which each return pipe is connected, and a main return pipe connected with the annular space and passing down the bore of the shaft, outside and concentric with the main supply pipe, an aperture in each distributing supply pipe at a point at which rouge and water is to be supplied and means for maintaining pressure in the supply pipes to force rouge and water through each aperture towards the underside of the glass.
  • a conduit system and means for circulating rouge and water therethrough comprising a main supply pipe passing up the bore of the shaft of the tool, a distributing supply pipe therefrom extending to a radius at which rouge and water is to be supplied to the glass, and continuing as a return pipe to return rouge and water to the bore of the shaft, a plurality of apertures in the distributing supply pipe, and means for maintaining pressure in the supply pipes to force rouge and water through each aperture towards the underside of the glass.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
US263622A 1938-03-24 1939-03-23 Glass polishing apparatus Expired - Lifetime US2178504A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9012/38A GB512336A (en) 1938-03-24 1938-03-24 Improvements in and relating to glass polishing apparatus

Publications (1)

Publication Number Publication Date
US2178504A true US2178504A (en) 1939-10-31

Family

ID=9863638

Family Applications (1)

Application Number Title Priority Date Filing Date
US263622A Expired - Lifetime US2178504A (en) 1938-03-24 1939-03-23 Glass polishing apparatus

Country Status (5)

Country Link
US (1) US2178504A (en))
BE (1) BE433436A (en))
FR (1) FR852047A (en))
GB (1) GB512336A (en))
NL (1) NL53086C (en))

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2646655A (en) * 1951-05-19 1953-07-28 Glaceries Sambre Sa Feeding of abrasives to glass surfacing tools

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1048183B (de) * 1951-05-19 1958-12-31 Glaceries De La Sambre Sa Einrichtung zur Zufuehrung des Schleif- bzw. Poliermittels bei zweiseitig wirkenden Glasschleif- und bzw. oder Poliermaschinen
FR1105018A (fr) * 1954-05-22 1955-11-25 Saint Gobain Perfectionnement dans le doucissage des feuilles de verre
DE1195632B (de) * 1954-09-08 1965-06-24 Glaceries De La Sambre Sa Einrichtung zur Foerderung und Verteilung des Bearbeitungsmittels fuer ein Werkzeug zum Bearbeiten eines Glasbandes
CN104959902A (zh) * 2015-06-19 2015-10-07 法格霭德兰汽车配件（昆山）有限公司 一种抛光机

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2646655A (en) * 1951-05-19 1953-07-28 Glaceries Sambre Sa Feeding of abrasives to glass surfacing tools

Also Published As

Publication number Publication date
GB512336A (en) 1939-09-01
FR852047A (en)) 1940-01-22
NL53086C (en))
BE433436A (en))

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