GB1593611A – Method of finishing glasses and apparatus for carrying out the method
– Google Patents
GB1593611A – Method of finishing glasses and apparatus for carrying out the method
– Google Patents
Method of finishing glasses and apparatus for carrying out the method
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Publication number
GB1593611A
GB1593611A
GB400/78A
GB40078A
GB1593611A
GB 1593611 A
GB1593611 A
GB 1593611A
GB 400/78 A
GB400/78 A
GB 400/78A
GB 40078 A
GB40078 A
GB 40078A
GB 1593611 A
GB1593611 A
GB 1593611A
Authority
GB
United Kingdom
Prior art keywords
glasses
station
rims
edges
edge
Prior art date
1977-01-07
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
Application number
GB400/78A
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.)
ILK E
Original Assignee
ILK E
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.)
1977-01-07
Filing date
1978-01-05
Publication date
1981-07-22
1978-01-05
Application filed by ILK E
filed
Critical
ILK E
1981-07-22
Publication of GB1593611A
publication
Critical
patent/GB1593611A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
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Classifications
C—CHEMISTRY; METALLURGY
C03—GLASS; MINERAL OR SLAG WOOL
C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
C03B29/00—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins
C03B29/04—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a continuous way
C03B29/06—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a continuous way with horizontal displacement of the products
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
B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
B24B9/12—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of hollow glassware, e.g. drinking glasses, preserve jars, television picture tube viewing panels
C—CHEMISTRY; METALLURGY
C03—GLASS; MINERAL OR SLAG WOOL
C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
C03B33/00—Severing cooled glass
C03B33/06—Cutting or splitting glass tubes, rods, or hollow products
C—CHEMISTRY; METALLURGY
C03—GLASS; MINERAL OR SLAG WOOL
C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
C03B33/00—Severing cooled glass
C03B33/09—Severing cooled glass by thermal shock
C03B33/095—Tubes, rods or hollow products
Description
PATENT SPECIFICATION
( 11) ( 21) Application No 400/78 ( 22) Filed 5 Jan 1978 ( 31) Convention Application No.
2700487 ( 32) Filed 7 Jan 1977 in n) ( 33) Fed Rep of Germany (DE) CO ( 44) Complete Specification published 22 July 1981 % ( 51) INT CL ‘ CO 9 D 33/06 B 24 B 5/24 ( 52) Index at acceptance CIM 422 TA B 3 D 1 D 5 A 2 1 H 3 2 A 20 2 A 5 ( 54) METHOD OF FINISHING GLASSES AND APPARATUS FOR CARRYING OUT THE METHOD ( 71) I, EMIL ILK, a Citizen of the Federal Republic of Germany, of 4 Ahornweg, 8372 Zwiesel, German Federal Republic, do hereby declare the invention, for which I pray that a patent may be granted to me, and the method by which it is to be performed, to be particularly described in and by the following statement:-
This invention relates to a method of and apparatus for forming and finishing the edges or rims of stemmed drinking glasses, made, for example, by attaching the stem including the base or foot to a bowl which has been blown in an automatic blowing machine.
Methods of forming the edges or rims of stemmed drinking glasses have been proposed in which the bowls of stemmed glasses are first marked or scribed, whereupon, after the surplus glass has been burstoff under impact, the edge is edge trimmed by grinding and heating the same However, it has been shown to be disadvantageous in these methods that the irregularities formed on the edge in the bursting-off step cannot be adequately equalized, and that the edges are not finished uniformly especially where the wall thicknesses of the bowls are large.
Accordingly, it is an object of the present invention to provide a method for automatically forming and finishing the edges or rims of stemmed drinking glasses, which method can allow uniformity of the edge of each glass to be obtained regardless of the wall thickness of the glass The method may provide glasses of improved quality as compared with those made by purely manual manufacture; not only the edges can be shaped with uniformity but also the height of the finished glasses can be identi1 k cal among themselves.
Additionally, an automatic machine for carrying out such a method should be economical to construct, adapted to operate in a trouble-free and operationally safe manner, and render unnecessary the services of qualified or experienced operators.
According to one aspect of the present invention there is provided a method of forming and finishing the edges or rims of stemmed drinking glasses, comprising the steps of marking or scribing the bowl of the glass, heating the marked or scribed 55 region, bursting-off surplus glass by impact thereby to form the edge or rim, grinding the edge or rim in three grinding steps, trimming the ground edge or rim both internally and externally of the bowl, finish 60 grinding the edge or rim, and thereafter polishing the edge or rim.
According to another aspect of the present invention there is provided apparatus for forming and finishing the edges or rims 65 of stemmed drinking glasses, comprising:
1) a rotatable turret.
2) means for suspending pairs of glasses by their feet or bases from said turret, 70 3) a non-rotatory table, 4) means for raising and lowering said table,
5) a plurality of working stations disposed around the periphery of said 75 table, each station comprising a pair of processing means for carrying out an operation on a pair of glasses when at the station, and 6) a Geneva wheel transmission for ad 80 vancing the turret by the pitch of two adjacent working stations, the working stations comprising, i) a marking or scribing station with means for marking or scribing the 85 bowls of a pair of glasses, ii) a bursting-off station with means for heating the marked or scribed regions of the glasses and means for subjecting the surplus glass to impact there 90 by to form the edges or rims, iii) three grinding stations each comprising means for grinding the formed edges or rims, iv) external and internal trimming 95 stations each comprising means for trimming the exterior or the interior of the ground edges or rims, v) a finish-grinding station, and vi) at least one polishing station with 100 1593611 0 j i 1 593 611 means for polishing the finish-ground edges or rims.
For additional labour saving, the glasses may be subsequently austomatically washed and dried, whereafter the glasses may be placed into a shipping packing in a manner to prevent breakage of glasses from occuring.
In order to provide for continuous operation of the scribing means which are rapidly worn in the marking or scribing step, the marking or scribing station may be provided with a pivotable holder mounting a plurality of diamond points or styluses, the holder being pivotable to bring each point in succession against the periphery of the glasses to be marked.
Each edge trimming station preferably comprises a diamond grinding wheel engaging the outer or inner edge of a glass, and a conical or cylindrical back-up member, engaging the inner or outer-edge respectively of the glass, so that the edge of the glass is positioned between the wheel and the back-up member.
In order to obviate the necessity for using grinding or polishing belts for polishing the edges of the glasses which belts wear extremely rapidly, the polishing station of the present apparatus preferably comprises a pair of sandstone grinding wheels rotatable in opposite directions about axes parallel to the stem of a glass and adapted to be vertically pressed against the edge of a glass.
For the final finishing step after the polishing step the present apparatus further includes a subsequently positioned washing station for washing said glasses with a washing liquid, and means for drying said glasses including a movable endless belt of absorbent material, means for depositing glasses on said belt with their edges or rims downward, and means for removing surplus washing liquid from the belt as by squeezing it between a pair of rollers.
In order to enable the invention to be more readily understood, reference will now be made to the accompanying drawings, which illustrate diagrammatically and by way of Example an embodiment thereof, and in which:FIGURE 1 is a sectional view of one half of a machine for forming and finishing the edges or rims of stemmed drinking glasses, FIGURE 2 is a side elevational view of a marking or scribing station of the machine, FIGURE 3 is a side elevational view of an internal edge trimming station of the machine, FIGURE 4 is a side elevational view of an external edge trimming station of the machine, FIGURE 5 is a side elevational view of a grinding station of the machine, FIGURE 6 is a side elevational view of a polishing station of the machine, FIGURE 7 is a schematical side eleva 70 tional view of a washing station of the machine, FIGURE 8 shows a suck-ofi and blowing station which follows the washing station and 75 FIGURE 9 shows a drying belt.
Referring now to the drawings, there is shown a machine for automatically forming and finishing the edges or rims of stemmed drinking glasses The machine comprises a 80 rotatable turret 1 at the peripheral portion of which the glasses are suspended with their feet or bases secured by holders 3 which are rotated about vertical axes by suitable means Below the rotatable turret there is 85 a stationary table 2 the peripheral portion of which supports various machining and finishing tools and other means for carrying out operations on the glasses, at working stations, which tools and means, in turn, 90 are adapted to be raised and lowered by lifting cylinders 15.
The stationary table 2 has a pair of working stations of the same type arranged in side-by-side relation Following a working 95 operation, the table 2 is lowered, table 1 is rotated by the pitch of the working stations, and after the table 2 has been raised, the tools are again brought into contact with the edge of the glass so as to 100 perform another step, namely the respective next working step.
At the end of the working stations, a withdrawal or discharge station is provided at which the glasses are removed from the 105 respective holder 3, and in a subsequent station, i e the first station of the processing line, untreated new glasses are placed into the holders, which glasses have their bowls still closed in the state as blown 110 (c.f Fig 2).
In a marking or scribing station shown in Fig 2, a diamond point is pressed against the periphery of the rotating glass so as to produce a thin scratch line which permits 115 a substantially smooth edge or rim to be formed in a subsequent bursting-off station where the region of the scratch line is heated and surplus glass below the scratch line is removed by impact thereby to form 120 the edge or rim Three diamond points 4 each are mounted in a pivotable holder 5, and these diamond points may be swung into the working position in succession, either automatically or by manual opera 125 tion In this manner, diamond points which wear rapidly may be employed without the necessity of periodically stopping the operation for replacement of the diamond points.
After bursting-off to form the edge, the 130 1 593 611 glass is advanced to three successively arranged grinding stations as shown in Fig.
and including grinding wheels 8 which are pressed against the edge The three successive grinding stations each employ diamond grinding wheels of decreasing grain size In this construction, the grinding wheels 8 are mounted for rotation in opposite directions directly on the shafts of motors 9 and about axes parallel to the stem of a glass.
Following this treatment, the glasses are advanced into edge trimming stations, with an external edge trimming station shown in Fig 4 including a diamond grinding wheel 6 which functions to grind the outer side of the edge In this station, a plastic cone 7 acts as a back-up element The internal edge trimming station shown in Fig 3 is of similar construction, to the that of the external edge, trimming station, the difference residing in the fact that the grinding wheel 6 engages the inner side of the edge of the glass with the back-up element 7 being mounted on the outer side.
Following the edge trimming steps, the edge may be subjected to a flame-polishing operation Preferably, however, the glasses are passed through a plurality of polishing steps in which they are polished with polishing wheels, which as shown in Fig 6 are similar to the grinding wheels and are mounted directly to the shafts of the driving motors 9 The polishing wheels are made of sandstone; these wheels provide long service life while nevertheless being suitable to effect polishing of the edge of the glass so as to produce a completely transparent surface of the edge.
The glasses may be washed in the machine at a washing station as shown in Fie 7 by spray nozzles 12 which serve to spray a washing liquid, such as water, on the glasses, and the major part of the water is blown off with an sir stream at a drying station as shown in Fig 8 Thereafter, the glasses are transferred onto a drying belt, and the glasses are subsequently removed from the automatic machine in the discharge station and as shown in Fig 9 placed upon the endless belt 13 of a washing system including a drier 14 for the belt 13 Preferably the drier comprises a pair of squeezing rollers between which the belt passes and which act to squeeze out the cleansing liquid from the belt The conveyor belt proper of the washing system is formed of highly absorbent material, e g of a felt known from paper production, which felt absorbs the drops gathering on the edge of the glass to thereby eliminate the need for manual drying.
The machine according to the invention includes some further processing stations which are self-evident to the expert such that the description of these stations may be omitted On the whole, the present automatic machine offers a technical solution to the object of performing the edge finishing in a fully automatic manner and of provid 70 ing a quality exceeding that of a manually finished edge of a glass.
Claims (11)
WHAT I CLAIM IS:-
1 A method of forming and finishing the edges or rims of stemmed drinking 75 glasses, comprising the steps of marking or scribing the bowl of the glass, heating the marked or scribed region, bursting-off surplus glass by impact thereby to form the edge or rim, grinding the edge or rim in 80 three grinding steps, trimming the ground edge or rim both internally and externally of the bowl, finish-grinding the edge or rim, and thereafter polishing the edge or rim.
2 A method as claimed in claim 2, and 85 further comprising the subsequent steps of washing the glass and drying the glass on an absorbent substrate.
3 A method as claimed in claim 1 or 2, wherein the polishing is effected by 90 polishing wheels.
4 A method as claimed in claim 1 or 2, wherein the polishing is effected by flame polishing.
A method of forming and finishing 95 the edges or rims of stemmed drinking glasses substantially as hereinbefore described with reference to the accompanying drawings.
6 Apparatus for forming and finishing 100 the edges or rims of stemmed drinking glasses, comprising 1) a rotatable terret, 2) means for suspending pairs of glasses by their feet or bases from said 105 turret, 3) a non-rotatory table, 4) means for raising and lowering said table, 5) a plurality of working stations dis 110 posed around the periphery of said table, each station comprising a pair of processing means for carrying out an operation on a pair of glasses when at the station, and 115 6) A Geneva wheel transmission for advancing the turret by the pitch of two adjacent working stations, the working stations comprising:
i) a marking or scribing station with 120 means for marking or scribing the bowls of a pair of glasses, ii) a bursting-off station with means for heating the marked or scribed regions of the glasses and means for sub 125 jecting the surplus glass to impact thereby to form the edges or rims, iii) three grinding stations each comprising means for grinding the formed edges or rims, 130 1 593 611 iv) external and internal trimming stations each comprising means for trimming the exterior or the interior of the ground edges or rims, v) a finish-grinding station, and vi) at least one polishing station with means for polishing the finish-ground edges or rims.
7 Apparatus as claimed in claim 6, and further comprising a washing station as an additional working station for washing the glasses with a washing liquid, and means for drying said glasses including a movable endless belt of absorbent material, means for depositing glasses on said belt with their edges or rims downward, and means for removing surplus washing liquid from the belt.
8 Apparatus as claimed in claim 6 or 7, wherein said marking or scribing station comprises a pivotable holder mounting a plurality of diamond points, the holder being pivotable to bring each point in succession in contact with the glasses.
9 Apparatus as claimed in any one of 25 claims 6 to 8, wherein each trimming station comprises a diamond grinding wheel so disposed that, in use, it can contact the outer or inner edge of a glass and a back-up member so disposed that, in use, it can 30 contact the inner or outer edge respectively of the glass.
Apparatus as claimed in any one of claims 6 to 9, wherein the polishing station comprises a pair of sandstone grinding 35 wheels rotatable in opposite directions about axes parallel to the stem of a glass.
11 Apparatus for forming and finishing the edges or rims of stemmed drinking glasses substantially as hereinbefore de 40 scribed with reference to the accompanying drawings.
LLOYD WISE, TREGEAR & CO, Norman House, 105-109 Strand, London, WC 2 R OAE.
Printed for Her Majesty’s Stationery Office by The Tweeddale Press Ltd, Berwick-upon-Tweed, 1981.
Published at the Patent Office, 25 Southampton Buildings London, WC 2 A l AY, from which copies may be obtained.
GB400/78A
1977-01-07
1978-01-05
Method of finishing glasses and apparatus for carrying out the method
Expired
GB1593611A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DE2700487A
DE2700487B2
(en)
1977-01-07
1977-01-07
Demolition and grinding machine for glasses
Publications (1)
Publication Number
Publication Date
GB1593611A
true
GB1593611A
(en)
1981-07-22
Family
ID=5998254
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB400/78A
Expired
GB1593611A
(en)
1977-01-07
1978-01-05
Method of finishing glasses and apparatus for carrying out the method
Country Status (9)
Country
Link
US
(1)
US4185419A
(en)
JP
(1)
JPS5389093A
(en)
BE
(1)
BE862740A
(en)
CS
(1)
CS207495B2
(en)
DD
(1)
DD133658A5
(en)
DE
(1)
DE2700487B2
(en)
FR
(1)
FR2376828A1
(en)
GB
(1)
GB1593611A
(en)
IT
(1)
IT1091855B
(en)
Cited By (1)
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Publication number
Priority date
Publication date
Assignee
Title
GB2147530A
(en)
*
1983-08-19
1985-05-15
Abbeybench Ltd
Glassware grinding & polishing apparatus
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Assignee
Title
DE2823088A1
(en)
*
1978-05-26
1979-11-29
Emil Ilk
HOLDING DEVICE FOR CUP-SHAPED GLASS OBJECTS ON A GLASS PROCESSING MACHINE
JPS61229487A
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1985-04-03
1986-10-13
Sasaki Glass Kk
Method for cutting glass by laser beam
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1985-12-24
1986-02-05
Abbeybench Ltd
Glassware grinding/polishing apparatus
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1988-05-26
1990-06-05
Biebuyck Sa Ets
COMBINED CUTTING-DIFFERENCE PROCESS USING ABRASIVE TOOLS OF GLASSWARE OR CRYSTALLERY AND DEVICE IMPLEMENTING THE METHOD.
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Fraunhofer Ges Forschung
Method and device for cutting a brittle body with laser radiation
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Fraunhofer Ges Forschung
Method and device for cutting a brittle body with laser radiation
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Cuvelier Georges
Capping METHOD FOR GLASS PIECES.
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2001-04-02
2002-11-21
Andreas Gartner
Brief summary of the invention
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2009-06-30
2016-09-27
Jeffrey Larson
Wine glass polisher
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2013-10-03
2015-10-20
Owens-Brockway Glass Container Inc.
Preparing a sealing surface of a container
CN106736968A
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2016-12-15
2017-05-31
衡东县中兴陶瓷有限公司
Ceramic saggar edge polisher
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*
2016-12-15
2017-05-31
衡东县中兴陶瓷有限公司
Ceramic saggar safety and environmental protection edge polisher
CN106736966A
(en)
*
2016-12-15
2017-05-31
衡东县中兴陶瓷有限公司
Ceramic saggar environmental protection edge polisher
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1932-05-19
Fr Wilhelm Kutzscher Fa
Machine for sanding flat surfaces on the rim and base of glass vessels
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Machine for automatically cutting, grinding and burning again cups and the like, made of glass and similar substances
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Apparatus for finishing glassware
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DE
DE2700487A
patent/DE2700487B2/en
not_active
Withdrawn
1977-10-25
US
US05/845,296
patent/US4185419A/en
not_active
Expired – Lifetime
1977-12-29
FR
FR7739573A
patent/FR2376828A1/en
not_active
Withdrawn
1978
1978-01-05
DD
DD7800203110A
patent/DD133658A5/en
unknown
1978-01-05
GB
GB400/78A
patent/GB1593611A/en
not_active
Expired
1978-01-05
CS
CS78130A
patent/CS207495B2/en
unknown
1978-01-06
IT
IT19050/78A
patent/IT1091855B/en
active
1978-01-06
BE
BE6046301A
patent/BE862740A/en
unknown
1978-01-07
JP
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patent/JPS5389093A/en
active
Pending
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2147530A
(en)
*
1983-08-19
1985-05-15
Abbeybench Ltd
Glassware grinding & polishing apparatus
Also Published As
Publication number
Publication date
DE2700487A1
(en)
1978-07-13
IT1091855B
(en)
1985-07-06
FR2376828A1
(en)
1978-08-04
DE2700487B2
(en)
1980-07-31
CS207495B2
(en)
1981-07-31
IT7819050D0
(en)
1978-01-06
US4185419A
(en)
1980-01-29
JPS5389093A
(en)
1978-08-05
BE862740A
(en)
1978-05-02
DD133658A5
(en)
1979-01-17
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Legal Events
Date
Code
Title
Description
1981-10-07
PS
Patent sealed [section 19, patents act 1949]
1985-08-29
PCNP
Patent ceased through non-payment of renewal fee
