US2623335A - Apparatus for feeding glass ribbon - Google Patents

Apparatus for feeding glass ribbon Download PDF

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Publication number
US2623335A
US2623335A US152718A US15271850A US2623335A US 2623335 A US2623335 A US 2623335A US 152718 A US152718 A US 152718A US 15271850 A US15271850 A US 15271850A US 2623335 A US2623335 A US 2623335A
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US
United States
Prior art keywords
pressure
roller
glass
ribbon
rollers
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
US152718A
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English (en)
Inventor
Bousseau Pierre
Touvay Robert
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
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Publication of US2623335A publication Critical patent/US2623335A/en
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    • 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
    • B24B7/26—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 simultaneously grinding or polishing opposite faces of continuously travelling sheets or bands
    • 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

Definitions

  • the present invention relates to apparatus for actin simultaneously on the two faces of a continuously advancing ribbon of glass.
  • rollers are arranged in pairs, the one roller of each pair supporting the ribbon of glass, and the other roller, located above the first roller being situated in a vertical plane perpendicular or substantially perpendicular to the direction of advance of the ribbon of glass, the upper generatrix of the lower roller being sit uated in the same plane as the surface of the lower operating tools.
  • the rollers of each pair rotate in opposite directions to each other, exerting a certain pressure on the ribbon of glass.
  • the pressure is exerted by the weight of th upper roller, and generally speaking is not regulable, and in any case it is always at least equal to the pressure exerted by the weight of the roller.
  • Th invention relates to a'means permitting of regulation and of precise measurement of the pressure of the rollers on the ribbon of glass and of the accomplishment of a pressure which may be as weak or as strong as desired, irrespective of the weight of the roller, and such pressure may even be greater than that exerted by theroller under the efiect of its own weight.
  • the invention not only permits of regulation of the pressure in accordance with the thickness of the ribbon, but it also enables this pressure to be precisely adjusted according to a predetermined scale. It is thus possible, after the best pressure conditions suitable for all possible thicknesses have'been determined by experience, to bring about at any time, without trial and error, the pressure conditions which are suitable for a given thickness of the glass.
  • the regulable pressure may be applied to the roller by way of a deformable connection, and the said pressure may be measured by the degree of deformation of the said connection when the pressure is applied thereto.
  • the invention accordingly comprises in or for an apparatus for grinding or polishing the two faces simultaneously of a ribbon of glass which is adapted to be advanced continuously through the apparatus by means of driving rollers arranged in pairs, the rollers of each pair being disposed on opposite sides ofthe glass, a pressure-applying device for applying a regulable and determinable pressure to one roller of each pair in the direction of the opposing roller of the pan.
  • FIG. 1 shows, somewhat diagrammatically, a view in section, perpendicular to the axis of the roller, of on embodiment according to the invention mounted at one end of the roller shaft, an identical arrangement being mounted at the other end of the shaft.
  • Fig. 2 is a similar view through the second form of embodiment.
  • Fig. 1 the end of the shaft 3 of the roller 2 rotates in a bearing not shown in th drawing, which bearing is integral with a housing 4. It is on this housing that the pressure is exerted.
  • the housing is movable vertically in such a way as to permit the roller 2 to bear on the ribbon of glass irrespective of the thickness of the latter.
  • shoes 5 which slide along two guideways, the guide faces of which are designated 6.
  • the rotary movement of the roller 2 is obtained in the following manner:
  • the vertical shaft 1 of an endless screw 8 has a rotary movement imparted thereto by a motor not shown.
  • the endless screw 8 engages with a toothed wheel 9 which, by means of a gear train l8, Hi1, transmits its rotary movement to the shaft 3 of the roller 2.
  • the driving shaft 1 In order to permit of vertical displacement of the housing 4 in accordance with the thickness of the ribbon of glass the driving shaft 1 possesses longitudinal grooves 1a, which engage in corresponding grooves in the hub of the endless screw 8.
  • the lower roller 2' can be loose on its shaft, or it can also be mechanically actuated bar at similar gear system engaged by the same s at I.
  • the pressure is obtained by a vertical force applied to a rod H and transmittedto the pressure element by way of the housing 4 through the medium of a resilient connection constituted by the springs 12 and 2
  • the rod II carries a reciprocable member l3 located between the two springs.
  • the spring I? bears at its lower part against the housing 4, and
  • the rod H terminates at its upper part in a thread, and the vertical force applied to the rod H is obtained by exerting a turning moment on the shaft I4, which is transmitted to the pinion l6 by the pinion [5,
  • the pinion 16 which acts as nut for the rod II, is held between the bearings 11, which are integral with the frame of the apparatus. Rotation of the pinion E6 accordingly brings about displacement of the rod l I towards the top or the bottom, the lat-. ter being prevented from turning by reason of the rectangular form of the member [3 and of the part l8 which acts as'guide therefor.
  • the pressure is measured and indicated by an indicator I! carried by the reciprocable member l3, movable in front of a scale 20 integral with the housing 4.
  • Fig. 2 the pressure is applied to the roller through the medium of aconneotion which is deformable by articulation.
  • the actuating mechanism for the rollers remains the same as before. in this case the force is exerted by a weight, and it is transmitted to the housing t by a lever and an articulated rod, which constitute the deformable connection.
  • the housing 4 is suspended by a rod '2! from the end of a beam 22 capable of rockingon a knife edge 23. Integral with thelever; 22;, and parallel to this lever, there is provided a graduated scale 24, along which there can be displaced a weight 25 furnished with a runner 26. Inaccordance with the fact as to whetherthe weight 25 is to the.
  • each bearing of the. roller can be furnished with a regulating device. It is also possible, with the object of'simplifying the operation, to combine the two hearings. in such a way as to make use of only one regulating device, which will preferably. be disposed on the tool-operating side of the apparatus.
  • the measuring scales can be graduated in pressure; or the graduation can be set up in millimetres of thickness of the ribbon, in such a way that-for a given thickness of the ribbon, for example 5 mm., the corresponding marking 5 will be-that at which therunnerrequiresto be, placed to; obtain the pressure-found; to be the best for a ribbon of this thickness.
  • rollers of each pair being disposed" on opposite sides of a ribbon of glass whenthe said glass traverses the apparatus, means for prdducinga variable and regulable pressure, a deformable connection including an articulated system'- for transmitting a positive or negative exactly determinable pressure fromsaid pressm-e produeing means to the upper roller of each said-pair of rollers in a direction towards thelo'wer roller of said pair of rollers for the purpose of augmenting or relieving the weight'of said upper roller, and means operated by said deformable connection for translatinginto desired terms the" degree of pressure transmitted by said connection t'o each said roller.
  • sure transmitting means comprising foreach said pair of rollers a housing supporting thesa-id first roller, a pivoted beam, arodarticulatedto said housing nd to said beam laterally of the pivot ofsaid beam, and a Weight slidable along said beam to augment the weight of said first roller when said weight is moved in one direction along said for advancing a ribbon of glass continuously in" the longitudinal direction ther'ethrough, the
  • rollers of each pair being disposedon opposite" sides of a ribbon of glass when the said" glass traverses the apparatus, means fcr'produc'ing'a' variable and regulable pressure, means rortraris: mitting an exactly determinable pressure" from" said pressure-producing means t'o-one roller of each said pair of rollers in a direction towards the second roller of said pair of rollers; said pressure transmitting means comprising for each-said pair of rollers a housing supporting the said first roller, a pivoted beam, a rod articulated to said housing and to said beam laterally of the pivot of said beam, and a weight slidable" along said beamv to augment the weight'of said first roller said weight is moved the direction along said beam was from said pivot and to relieve the Wlgh'tiof said first roller when said Weight is moved" in the opposite direction along said beam beyond said pivot, and means operated by the said pressure transmitting means for translating into desired terms the degree of pressure transmitted by said transmitting means.
  • rollersof each pair beingdisposed on opposite sides or" a ribbon of glass when the said glass traverses the apparatus, means for producing a variable and reg'ulable pressure, and means" for transmitting an exactly determinable pressure from said'pressure-producing' mea'ns'to one roller of each said pair of rollers inadirectiontowards the second ro'llerof said pair of rollers, said pressure transmitting meahscomfiarisi-fig, f'or' each said pair of rollers a housing supporting the said first roller, a pivoted graduated beam, a rod' articulated to said housing and to said beam laterally of the pivot of said beam, and a weight slidable along said beam to augment the weight of said first roller when said Weight is moved in one direction along said beam away from said pivot and to relieve the weight of said first roller when said weight is moved in the opposite direction along said beam beyond said pivot, said weight co-operating with the scale on said beam to indicate in terms determined by the graduation of said scale the degree of pressure transmitted to each said roller

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
US152718A 1949-09-08 1950-03-29 Apparatus for feeding glass ribbon Expired - Lifetime US2623335A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR675142X 1949-09-08
FR829410X 1949-09-08
FR2623335X 1949-09-08

Publications (1)

Publication Number Publication Date
US2623335A true US2623335A (en) 1952-12-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
US152718A Expired - Lifetime US2623335A (en) 1949-09-08 1950-03-29 Apparatus for feeding glass ribbon

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US (1) US2623335A (en(2012))
BE (1) BE497596A (en(2012))

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US551752A (en) * 1895-12-24 Polish ing-machine
US844350A (en) * 1906-06-14 1907-02-19 Farrel Foundry & Machine Company Controlling and positioning device.
DE355129C (de) * 1921-04-26 1922-06-22 Hans Weber Holzschleifmaschine
US1713678A (en) * 1926-05-04 1929-05-21 Jones & Laughlin Steel Corp Stock guiding and feeding mechanism
US1714246A (en) * 1926-05-04 1929-05-21 Jones & Laughlin Steel Corp Grinding machine
US1729498A (en) * 1927-01-05 1929-09-24 Pilkington Brothers Ltd Production of ground and polished plates of glass and apparatus therefor
US1907446A (en) * 1926-05-19 1933-05-09 Magazine Repeating Razor Co Blade grinding machine
US1932305A (en) * 1932-06-10 1933-10-24 Jeumont Forges Const Elec Surfacing apparatus
US2130255A (en) * 1937-03-09 1938-09-13 Pilkington Brothers Ltd Apparatus for grinding and polishing strips of glass
US2187462A (en) * 1936-11-02 1940-01-16 David E Mulholland Polishing machine
US2212219A (en) * 1939-05-08 1940-08-20 Goodman Mfg Co Pickling and cleaning apparatus
US2230670A (en) * 1939-01-17 1941-02-04 United Eng Foundry Co Apparatus for coiling strip
US2297976A (en) * 1937-03-30 1942-10-06 John S Nachtman Scrubbing and polishing apparatus
US2358572A (en) * 1943-01-18 1944-09-19 Alfred E Hamilton Grinding apparatus
GB618016A (en) * 1946-09-20 1949-02-15 Schaeffer & Cie Ets Pressure regulator for fabric printing machines

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US551752A (en) * 1895-12-24 Polish ing-machine
US844350A (en) * 1906-06-14 1907-02-19 Farrel Foundry & Machine Company Controlling and positioning device.
DE355129C (de) * 1921-04-26 1922-06-22 Hans Weber Holzschleifmaschine
US1713678A (en) * 1926-05-04 1929-05-21 Jones & Laughlin Steel Corp Stock guiding and feeding mechanism
US1714246A (en) * 1926-05-04 1929-05-21 Jones & Laughlin Steel Corp Grinding machine
US1907446A (en) * 1926-05-19 1933-05-09 Magazine Repeating Razor Co Blade grinding machine
US1729498A (en) * 1927-01-05 1929-09-24 Pilkington Brothers Ltd Production of ground and polished plates of glass and apparatus therefor
US1932305A (en) * 1932-06-10 1933-10-24 Jeumont Forges Const Elec Surfacing apparatus
US2187462A (en) * 1936-11-02 1940-01-16 David E Mulholland Polishing machine
US2130255A (en) * 1937-03-09 1938-09-13 Pilkington Brothers Ltd Apparatus for grinding and polishing strips of glass
US2297976A (en) * 1937-03-30 1942-10-06 John S Nachtman Scrubbing and polishing apparatus
US2230670A (en) * 1939-01-17 1941-02-04 United Eng Foundry Co Apparatus for coiling strip
US2212219A (en) * 1939-05-08 1940-08-20 Goodman Mfg Co Pickling and cleaning apparatus
US2358572A (en) * 1943-01-18 1944-09-19 Alfred E Hamilton Grinding apparatus
GB618016A (en) * 1946-09-20 1949-02-15 Schaeffer & Cie Ets Pressure regulator for fabric printing machines

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BE497596A (en(2012))

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