FR2013221A1 - Glass drill for boring of holes into glass components - Google Patents

Glass drill for boring of holes into glass components

Info

Publication number
FR2013221A1
FR2013221A1 FR6918698A FR6918698A FR2013221A1 FR 2013221 A1 FR2013221 A1 FR 2013221A1 FR 6918698 A FR6918698 A FR 6918698A FR 6918698 A FR6918698 A FR 6918698A FR 2013221 A1 FR2013221 A1 FR 2013221A1
Authority
FR
France
Prior art keywords
drill
glass
speed
boring
approx
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.)
Withdrawn
Application number
FR6918698A
Other languages
French (fr)
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.)
PPG Industries Inc
Original Assignee
PPG Industries Inc
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 PPG Industries Inc filed Critical PPG Industries Inc
Publication of FR2013221A1 publication Critical patent/FR2013221A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B28D1/041—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles

Abstract

High-speed boring of holes into glass components or plates, partic. as used in cars and vehicles, such as screens, front/side or rear light/indicator glass lenses etc., by one or a pair of constant-speed drills of improved life span. When drilling with a pair of drills, the glass component is clamped and secured on a frame with a drill arranged on either side to affect simultaneous drilling at equal speed into component from both sides and opposite each other. Boring is terminated when drill head bits have reached at least the middle of the glass thickness. The boring speed of the bits is maintained constant by a suitable motor to advance approx. 0.14 centimeter per sec. at approx. 3450-3600 revolutions per min., of the bit, which increases the life span of this drill. In comparison to customary drill bits, operating at constant pressure but with decreasing speed when advancing into the glass, which last for approx. 46000 bore holes, this constant-speed drill enables a life of approx. 260000 bore-holes for the drill bit.
FR6918698A 1968-07-19 1969-06-06 Glass drill for boring of holes into glass components Withdrawn FR2013221A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US74609568A 1968-07-19 1968-07-19

Publications (1)

Publication Number Publication Date
FR2013221A1 true FR2013221A1 (en) 1970-03-27

Family

ID=24999462

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6918698A Withdrawn FR2013221A1 (en) 1968-07-19 1969-06-06 Glass drill for boring of holes into glass components

Country Status (3)

Country Link
BE (1) BE736269A (en)
DE (1) DE1932822A1 (en)
FR (1) FR2013221A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112757124A (en) * 2020-12-30 2021-05-07 一中建设集团有限公司 To two hole digger that grind building glass curtain wall of suction type

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112757124A (en) * 2020-12-30 2021-05-07 一中建设集团有限公司 To two hole digger that grind building glass curtain wall of suction type
CN112757124B (en) * 2020-12-30 2022-01-04 一中建设集团有限公司 To two hole digger that grind building glass curtain wall of suction type

Also Published As

Publication number Publication date
DE1932822A1 (en) 1970-01-29
BE736269A (en) 1970-01-19

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Legal Events

Date Code Title Description
ST Notification of lapse