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US3711215A - Drilling bolt holes - Google Patents

Drilling bolt holes Download PDF

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Publication number
US3711215A
US3711215A US00149733A US3711215DA US3711215A US 3711215 A US3711215 A US 3711215A US 00149733 A US00149733 A US 00149733A US 3711215D A US3711215D A US 3711215DA US 3711215 A US3711215 A US 3711215A
Authority
US
United States
Prior art keywords
plate
guides
locating devices
locating
holes
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
US00149733A
Other languages
English (en)
Inventor
J Brown
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3711215A publication Critical patent/US3711215A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
    • B23B47/28—Drill jigs for workpieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2247/00—Details of drilling jigs
    • B23B2247/12—Drilling jigs with means to affix the jig to the workpiece
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/55—Cutting by use of rotating axially moving tool with work-engaging structure other than Tool or tool-support
    • Y10T408/563—Work-gripping clamp
    • Y10T408/5635—Oppositely moving lateral clamps

Definitions

  • Cl ..408/l08, 173/32 bolts in bridge parapets and the like consists of a flat [51] Int. Cl. ..B23b 49/00 plate bearing adjustable guides, adjustable locating [58] Field of Search ..408/108, 1 15, 173/32, means and powepoperated Clamping means 7 Claims, 2 Drawing Figures PATENTEDJAH 16 1975 3. 711 215 SHEET 2 OF 2 DRILLING BOLT HOLES This invention relates to apparatus for locating drilling positions for bolt holes and for controlling the depth of drilling and accuracy of drilling such bolt holes.
  • the type of fixture in our copending application has a large number of advantages, both as regards installation and use.
  • the fixing bolts may be installed simply by drilling a hole in a substrate of suitable diameter, and then setting part of the bolt therein, e.g. by means of a cementitious grout or mortar, or by means of a cured resin system.
  • the preferred fixing methods are those described in British Patent Specification 1,127,913.
  • Each fixing bolt is installed separately and thus if necessary, each bolt can be separately replaced. Installation is quick and easy, and does not entail, as known systems do, for example, locating the bolt in situ prior to casting the concrete base around it.
  • the preferred fixing method of our copending application referred to above is also advantageous from the point of view of high strength, speed, and efficiency even in extreme conditions of temperature or humidity.
  • apparatus for use in the location of holes in the upper surface of a stone, concrete or like structure, the apparatus comprising a plate having a plurality of guides extending vertically there-through, power clamping means for clamping the plate to said structure, locating devices adapted to contact the surface of the structure, and means for independently vertically adjusting the position of each of the locating devices and each of the guides relative to the plate so that the locating devices and guides may make contact with the upper surface of the structure, the plate remaining horizontal.
  • the guides may vary to suit the circumstances. Often, the guides will be four in number and arranged in the form of a rectangle, but there may be more or less guides and the arrangement may be, for example, that they lie on the corners of a triangle, or around an oval or circle, or about a semicircle.
  • FIG. 1 diagrammatically illustrates the apparatus in plan
  • FIG. 2 diagrammatically illustrates the apparatus in elevation.
  • the apparatus comprises a plate 1 mounted on hollow bars 2.
  • the plate is provided with four screw-threaded guide tubes 3 which, by use of the thread can be adjusted in position so that more or less of the tube projects above the plate I (and consequently less or more projects below the plate I).
  • sleeve elements 4 Secured to the plate, at its corners are four sleeve elements 4 within each of which is housed a member carrying a wheel 5, the arrangement being such in each case that the location of the height of the wheels relative to the plate 1 may be adjusted by means of a screw control 6.
  • an assembly Mounted on the hollow bars 2 extending on one side of the plate I is an assembly providing a positioning plate 7 secured to the end of a hydraulically or pneumatically controlled piston 8 in a hydraulic or pneumatic cylinder 9.
  • the feed lines to this cylinder consist of a main feed 10 to a valve mechanism 11 mounted on the extension of the bars 2 on the other side of the plate 1 and thence, through the hollow bars 2 via hose 12 to the ends of the cylinder 9.
  • a spirit level 15 is provided on the plate 1.
  • the apparatus is illustrated in the position in which it would be used on a coping 16 which sloped upwards to the right, the coping 16 being indicated in dotted outline section.
  • the positioning (clamping) plates 7 and 14 grip the sides of the copying 16 and the wheels are adjusted to rest on the top of the coping 16 while keeping the plate 1 horizontal.
  • the guide tubes 3 are screwed down to the surface of 5 the coping. It will be appreciated that since the guide tubes are vertical the holes drilled will also be vertical.
  • the hydraulic or pneumatic pressure may be released, the positioning plates 7 and 14 thus allowed to separate and the device rolled forward on its wheels 5 to a next adjacent position for the drilling of a further set of holes, requiring only such further adjustment as may be dictated by a change in slope of the surface of the coping.
  • a series of holes may be drilled along the surface of a coping, e.g., to accept bolts holding a crash-barrier, which are regularly spaced, and all vertically aligned, thereby greatly facilitating the erection of a crash barrier or the like on the coping.
  • Apparatus for use in the location of holes in the upper surface of stone or concrete structures comprising a plate, a plurality of guides supported by and extending vertically through the plate,
  • power clamping means for clamping the plate to the structure, locating devices mounted on and extending vertically through the plate and adapted to contact the surface of the structure, means for vertically adjusting the position of each of the locating devices and means for vertically adjusting the position of each of the guides relative to the plate so that the locating devices and guides may make contact with the upper surface of the structure to position the plate in a horizontal plane.
  • Apparatus according to claim 1 wherein there are four guide members arranged in a rectangle.
  • Apparatus according to claim 1 wherein the locating devices includes wheels that engage the upper surface of the structure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
US00149733A 1970-06-05 1971-06-03 Drilling bolt holes Expired - Lifetime US3711215A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2733170 1970-06-05

Publications (1)

Publication Number Publication Date
US3711215A true US3711215A (en) 1973-01-16

Family

ID=10257835

Family Applications (1)

Application Number Title Priority Date Filing Date
US00149733A Expired - Lifetime US3711215A (en) 1970-06-05 1971-06-03 Drilling bolt holes

Country Status (9)

Country Link
US (1) US3711215A (es)
AT (1) AT312659B (es)
CA (1) CA928948A (es)
CH (1) CH529624A (es)
DE (1) DE2127738A1 (es)
ES (1) ES197385Y (es)
FR (1) FR2095995A5 (es)
GB (1) GB1352703A (es)
ZA (1) ZA713506B (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973860A (en) * 1974-04-16 1976-08-10 Austrian Ski And Machine Corporation Clamping drill jigs on skis

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2862155D1 (en) * 1978-12-01 1983-02-17 Garfield Wiggins Doweling jig
US4981400A (en) * 1989-12-21 1991-01-01 Stover H Lee Self-centering jig

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2602238A (en) * 1949-04-27 1952-07-08 Clifton E Wellman Boring jig or drill guide

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2602238A (en) * 1949-04-27 1952-07-08 Clifton E Wellman Boring jig or drill guide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973860A (en) * 1974-04-16 1976-08-10 Austrian Ski And Machine Corporation Clamping drill jigs on skis

Also Published As

Publication number Publication date
FR2095995A5 (es) 1972-02-11
CH529624A (de) 1972-10-31
ES197385U (es) 1975-04-16
AT312659B (de) 1974-01-10
DE2127738A1 (de) 1971-12-09
ES197385Y (es) 1975-09-01
GB1352703A (en) 1974-05-08
ZA713506B (en) 1972-03-29
CA928948A (en) 1973-06-26

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