US3462843A - Devices for use in the marking out of building sites - Google Patents

Devices for use in the marking out of building sites Download PDF

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Publication number
US3462843A
US3462843A US602226A US3462843DA US3462843A US 3462843 A US3462843 A US 3462843A US 602226 A US602226 A US 602226A US 3462843D A US3462843D A US 3462843DA US 3462843 A US3462843 A US 3462843A
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Prior art keywords
fixing members
ground
datum point
building sites
arms
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US602226A
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George T Blake
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14—Conveying or assembling building elements
    • E04G21/16—Tools or apparatus
    • E04G21/18—Adjusting tools; Templates
    • E04G21/1808—Holders for bricklayers' lines, bricklayers' bars; Sloping braces
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14—Conveying or assembling building elements
    • E04G21/16—Tools or apparatus
    • E04G21/18—Adjusting tools; Templates
    • E04G21/1808—Holders for bricklayers' lines, bricklayers' bars; Sloping braces
    • E04G21/1833—Line-holders for setting-out builders' work, e.g. foundations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
    • G01C15/02—Means for marking measuring points
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
    • G01C15/12—Instruments for setting out fixed angles, e.g. right angles

Definitions

  • the invention relates to devices for use in the marking out of building sites.
  • optical sighting When marking out building sites it is customary to use optical sighting procedures to ensure that corners of a marked out region are square. Recently it has been proposed to use for the optical sighting a device having two sighting paths which are accurately disposed at right angles to each other. These sighting paths may be pro vided by two telescopes having their axes at right angles.
  • a sighting device is mounted on an adjustable cantilever support from a tripod and has a vertical axis which intersects the axes of the telescopes, the vertical axis being coincident with the axis of a downwardly extending tube in which a rod is slidably guided.
  • the rod can be fixed in any position relative to the tube by means of a thumbscrew, and has a pointed or cup shaped lower end.
  • the lower end of the slide rod provides the actual datum point after the device has been properly set up, and this datum point can be marked by means of a marker peg placed in the ground in alignment with the said lower end.
  • this datum point can be marked by means of a marker peg placed in the ground in alignment with the said lower end.
  • the position of the marker peg is lost during subsequent trenching operations for foundations. -It is therefore customary to project outwardly from the conceptual position of the marker peg by a predetermined amount, for example two feet, and to mark these projected positions, so that after trenching, inward projection allows the original conceptual marker position to be re-established. This projection is a cumbersome procedure and increases the cost in setting up a building site.
  • the present invention consists in a device for use in the setting up of building sites by transferring co-ordinates of a corner datum point of two arbitrary points spaced apart from said corner datum point and enabling said corner datum point to be re-established when desired, the device comprising two rigid arms pivotably connected together at one end and having rigid means mounted on their other ends for engagement with fixing members adapted to be driven into the ground.
  • Each of the rigid arms and its associated rigid engageable means constitutes an assembly which is rigid throughout from the pivot point to the engageable means.
  • the arrangement is such that when the pivot point of the two arms is in register with the corner datum point and the engagement means at the other ends of the arms are engaged with fixing 3,462,843 Patented Aug. 26, 1969 members and the fixing members driven into the ground, the device can be removed from the fixing members, the corner datum point being re-established by the said pivot point when the device is again engaged with the fixing members.
  • FIG. 1 is a perspective view of a setting up device according to the invention
  • FIG. 2 is a perspective view of a fixing device shown engaged by an end of an arm of the device of FIG. 1;
  • FIG. 3 is an elevation view of the fixing device of FIG. 2, to a larger scale than FIG. 2;
  • FIG. 4 is a plan view of the setting up device, shown in its position of use.
  • the setting up device has two arms 1 and 2 pivotably connected at one end by a rivet or bolt 3 which has a spike 4 which can readily be brought into a position of register with the vertical axis of the known optical sighting device mentioned above.
  • each arm 1 and 2 has a hole 5 flanked by a stop 6 and a lug 7 carrying a thumbscrew 8.
  • Fixing members 9 are provided which are adapted to be driven into the ground.
  • the fixing members 9 have shanks 10 over which the arms 1 and 2 can engage by means of the holes 5.
  • the shank 10 of each fixing member 9 is mounted by a plate 11 which carries spikes 12 for securing the fixing member in the ground.
  • the thumbscrews 8 enable the arms 1 and 2 to be firmly secured to the shanks 10.
  • the spike 4 of the device of the invention is brought into register with the corner datum point, the arms 1 and 2 being spread apart so as to provide a reasonably wide base between the holes 5, although it is not necessary for the arms 1 and 2 to be at a right angle to each other.
  • the fixing members 9 are driven into the ground at points defined by the holes 5 and with the two arms of the device held by the two fixing members 9 the spike 4 is thus held fixed.
  • the device can be removed from the fixing members, leaving the fixing members remaining in the ground.
  • the fixing members 9 are disposed at some distance, for example two feet, from the corner datum point, trenching of the site can readily be effected after the device is removed from the fixing members 9. If desider, the fixing members 9 can be driven into the ground to such an extent that they are below ground level, whereby a trenching machine can run over them without dislodging them.
  • a device for use in the setting up of building sites by transferring co-ordinates of a corner datum point of two arbitrary points spaced apart from said corner datum point and enabling said corner datum point to be reestablished when desired said device comprising two fixing members adapted to be driven into the ground; two rigid arms pivotably connected together at one end at a pivot point; and rigid engageable means mounted directly on the other end of each arm respectively and being detachably engageable with said fixing members, each of said rigid arms and its associated rigid engageable means mounted thereon constituting an assembly which is rigid throughout from said pivot point to said engageable means, whereby when said fixing members are driven into the ground and said pivot point is in register with the corner datum point and said engageable means are engaged respectively with said fixing member, said arms, said pivot point and said engageable means can be removed together from the fixing members, leaving the fixing members in the ground, and the corner datum point may be re-established by the said pivot point when said engageable means are respectively re-engaged with the fixing members.
  • each of said fixing members comprises a shank
  • each arm at its said other end comprises means defining an aperture for engaging over the shank of the respective fixing member, each said other end having stop means flanking said aperture for engaging against the associated shank and means flanking said aperture and carrying a thumbscrew disposed opposite said stop means, said thumbscrew serving for engaging the shank and thus establishing a firm connection between said arm and the respective 20 fixing member.
  • each of said fixing members comprises a plate through which the said shank extends, and a plurality of spikes extending from said plate for engaging in the ground.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Tents Or Canopies (AREA)
  • Road Signs Or Road Markings (AREA)

Description

Aug. 26, 19 9 1G. 1'. B;.AKE 3,462,843
DEVICES FOR USE IN THE MARKING OUT OF BUILDING SITES Filed Dec. 16, 1966 r z Sheets-Sheet 1 INVf/VTOR By T M .wm 44% we); 5m
1 7 ORNE Y Aug. 26, 1969 I G. T. BLAKE DEVICES FOR USE IN THE'MARKING' OUT OF BUILDING SITES 2 Sheets-Sheet 2 Filed Dec. 16, 1.966
A T RN YS United States Patent 3,462,843 DEVICES FOR USE IN THE MARKING OUT OF BUILDING SITES George T. Blake, Orchard Dene, Station Road, Padworth, Reading, Berkshire, England Filed Dec. 16, 1966, Ser. No. 602,226
Claims priority, application Great Britain, Dec. 30, 1965,
55,207 65 Int. Cl. G01b 3/14, 5/24 U.S. Cl. 33-1 3 Claims ABSTRACT OF THE DISCLOSURE The invention relates to devices for use in the marking out of building sites.
When marking out building sites it is customary to use optical sighting procedures to ensure that corners of a marked out region are square. Recently it has been proposed to use for the optical sighting a device having two sighting paths which are accurately disposed at right angles to each other. These sighting paths may be pro vided by two telescopes having their axes at right angles. Such a sighting device is mounted on an adjustable cantilever support from a tripod and has a vertical axis which intersects the axes of the telescopes, the vertical axis being coincident with the axis of a downwardly extending tube in which a rod is slidably guided. The rod can be fixed in any position relative to the tube by means of a thumbscrew, and has a pointed or cup shaped lower end.
The lower end of the slide rod provides the actual datum point after the device has been properly set up, and this datum point can be marked by means of a marker peg placed in the ground in alignment with the said lower end. However, the position of the marker peg is lost during subsequent trenching operations for foundations. -It is therefore customary to project outwardly from the conceptual position of the marker peg by a predetermined amount, for example two feet, and to mark these projected positions, so that after trenching, inward projection allows the original conceptual marker position to be re-established. This projection is a cumbersome procedure and increases the cost in setting up a building site.
The present invention consists in a device for use in the setting up of building sites by transferring co-ordinates of a corner datum point of two arbitrary points spaced apart from said corner datum point and enabling said corner datum point to be re-established when desired, the device comprising two rigid arms pivotably connected together at one end and having rigid means mounted on their other ends for engagement with fixing members adapted to be driven into the ground. Each of the rigid arms and its associated rigid engageable means constitutes an assembly which is rigid throughout from the pivot point to the engageable means. The arrangement is such that when the pivot point of the two arms is in register with the corner datum point and the engagement means at the other ends of the arms are engaged with fixing 3,462,843 Patented Aug. 26, 1969 members and the fixing members driven into the ground, the device can be removed from the fixing members, the corner datum point being re-established by the said pivot point when the device is again engaged with the fixing members.
In order to make the invention clearly understood, reference will now be made to the accompanying drawings which are given by way of example and in which:
FIG. 1 is a perspective view of a setting up device according to the invention FIG. 2 is a perspective view of a fixing device shown engaged by an end of an arm of the device of FIG. 1;
FIG. 3 is an elevation view of the fixing device of FIG. 2, to a larger scale than FIG. 2; and
FIG. 4 is a plan view of the setting up device, shown in its position of use.
The setting up device has two arms 1 and 2 pivotably connected at one end by a rivet or bolt 3 which has a spike 4 which can readily be brought into a position of register with the vertical axis of the known optical sighting device mentioned above. At the other end, each arm 1 and 2 has a hole 5 flanked by a stop 6 and a lug 7 carrying a thumbscrew 8.
Fixing members 9 are provided which are adapted to be driven into the ground. The fixing members 9 have shanks 10 over which the arms 1 and 2 can engage by means of the holes 5. The shank 10 of each fixing member 9 is mounted by a plate 11 which carries spikes 12 for securing the fixing member in the ground. The thumbscrews 8 enable the arms 1 and 2 to be firmly secured to the shanks 10.
When a corner datum point for a building site has been obtained by use of an optical sighting device or by any other known means, the spike 4 of the device of the invention is brought into register with the corner datum point, the arms 1 and 2 being spread apart so as to provide a reasonably wide base between the holes 5, although it is not necessary for the arms 1 and 2 to be at a right angle to each other. The fixing members 9 are driven into the ground at points defined by the holes 5 and with the two arms of the device held by the two fixing members 9 the spike 4 is thus held fixed. After the fixing members 9 have been driven into the ground, the device can be removed from the fixing members, leaving the fixing members remaining in the ground. When it is again desired to re-establish the corner datum point, it is simply necessary to re-apply the device to the fixing members, whereupon the spike 4 will again be disposed in alignment with the corner datum point.
Since the fixing members 9 are disposed at some distance, for example two feet, from the corner datum point, trenching of the site can readily be effected after the device is removed from the fixing members 9. If desider, the fixing members 9 can be driven into the ground to such an extent that they are below ground level, whereby a trenching machine can run over them without dislodging them.
I claim:
1. A device for use in the setting up of building sites by transferring co-ordinates of a corner datum point of two arbitrary points spaced apart from said corner datum point and enabling said corner datum point to be reestablished when desired, said device comprising two fixing members adapted to be driven into the ground; two rigid arms pivotably connected together at one end at a pivot point; and rigid engageable means mounted directly on the other end of each arm respectively and being detachably engageable with said fixing members, each of said rigid arms and its associated rigid engageable means mounted thereon constituting an assembly which is rigid throughout from said pivot point to said engageable means, whereby when said fixing members are driven into the ground and said pivot point is in register with the corner datum point and said engageable means are engaged respectively with said fixing member, said arms, said pivot point and said engageable means can be removed together from the fixing members, leaving the fixing members in the ground, and the corner datum point may be re-established by the said pivot point when said engageable means are respectively re-engaged with the fixing members.
2. A device as defined in claim 1 wherein each of said fixing members comprises a shank, and wherein each arm at its said other end comprises means defining an aperture for engaging over the shank of the respective fixing member, each said other end having stop means flanking said aperture for engaging against the associated shank and means flanking said aperture and carrying a thumbscrew disposed opposite said stop means, said thumbscrew serving for engaging the shank and thus establishing a firm connection between said arm and the respective 20 fixing member.
3. A device as defined in claim 2, wherein each of said fixing members comprises a plate through which the said shank extends, and a plurality of spikes extending from said plate for engaging in the ground.
References Cited UNITED STATES PATENTS 1,313,432 8/1919 Walker 3375 2,612,695 10/1952 Schneider et a1 3385 2,806,289 9/ 1957 Rongaus et a1. 2,835,036 5/1958 Peresenyi. 3,066,416 12/1962 Gutting.
FOREIGN PATENTS 1,073,756 I/ 1960 Germany.
700,207 11/ 1952 Great Britain.
WILLIAM D. MARTIN, JR., Primary Examiner US. Cl. X.R. 33-75
US602226A 1965-12-30 1966-12-16 Devices for use in the marking out of building sites Expired - Lifetime US3462843A (en)

Applications Claiming Priority (1)

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GB55207/65A GB1103840A (en) 1965-12-30 1965-12-30 Devices for use in the marking out of building sites

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US3462843A true US3462843A (en) 1969-08-26

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US (1) US3462843A (en)
BE (1) BE691741A (en)
DE (1) DE1684170A1 (en)
FR (1) FR1506904A (en)
GB (1) GB1103840A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6212782B1 (en) 1998-10-20 2001-04-10 Gary W. Eisenmenger Building line layout device
US20040163271A1 (en) * 2002-02-04 2004-08-26 Zars Leif Alexander System for marking an arc segment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2502769A1 (en) * 1981-03-25 1982-10-01 Scoraille Louis De APPARATUS FOR MEASURING A DISTANCE BETWEEN TWO POINTS, INTENDED IN PARTICULAR TO GROW A GROUND

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1313432A (en) * 1919-08-19 Combination-tool
US2612695A (en) * 1951-02-12 1952-10-07 Kenneth E Schneider Line holder
GB700207A (en) * 1951-06-30 1953-11-25 William Penman Mitchell Improvements relating to the setting-out of builders' work
US2806289A (en) * 1955-08-25 1957-09-17 Leon F Rongaus Aiming stake holder
US2835036A (en) * 1955-10-03 1958-05-20 Louis P Peresenyi Football yardage telescope
DE1073756B (en) * 1960-01-21 Rom Virgilio Nurchis Angle measuring device
US3066416A (en) * 1960-12-05 1962-12-04 Robert D Gutting Device for laying out corners

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1313432A (en) * 1919-08-19 Combination-tool
DE1073756B (en) * 1960-01-21 Rom Virgilio Nurchis Angle measuring device
US2612695A (en) * 1951-02-12 1952-10-07 Kenneth E Schneider Line holder
GB700207A (en) * 1951-06-30 1953-11-25 William Penman Mitchell Improvements relating to the setting-out of builders' work
US2806289A (en) * 1955-08-25 1957-09-17 Leon F Rongaus Aiming stake holder
US2835036A (en) * 1955-10-03 1958-05-20 Louis P Peresenyi Football yardage telescope
US3066416A (en) * 1960-12-05 1962-12-04 Robert D Gutting Device for laying out corners

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6212782B1 (en) 1998-10-20 2001-04-10 Gary W. Eisenmenger Building line layout device
US20040163271A1 (en) * 2002-02-04 2004-08-26 Zars Leif Alexander System for marking an arc segment
US6904697B2 (en) * 2002-02-04 2005-06-14 Leif Alexander Zars System for marking an arc segment

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BE691741A (en) 1967-05-29
GB1103840A (en) 1968-02-21
DE1684170A1 (en) 1970-01-22
FR1506904A (en) 1967-12-22

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