US885658A - Builder's level. - Google Patents

Builder's level. Download PDF

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Publication number
US885658A
US885658A US40196607A US1907401966A US885658A US 885658 A US885658 A US 885658A US 40196607 A US40196607 A US 40196607A US 1907401966 A US1907401966 A US 1907401966A US 885658 A US885658 A US 885658A
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United States
Prior art keywords
level
sections
hinge
boards
builder
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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
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US40196607A
Inventor
Nathan Abrahams
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Individual
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Priority to US40196607A priority Critical patent/US885658A/en
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Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00—Measuring inclination, e.g. by clinometers, by levels
    • G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
    • G01C9/24—Measuring inclination, e.g. by clinometers, by levels by using liquids in closed containers partially filled with liquid so as to leave a gas bubble
    • G01C9/26—Details
    • G01C9/28—Mountings
    • 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
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32254—Lockable at fixed position
    • Y10T403/32262—At selected angle

Definitions

  • Naffzan flbrahams NATHAN ABRAHAMS, OF ST. LOUIS, MISSOURI.
  • My invention has relation to improvements in builders levels; and it consists in the novel construction of level more fully set forth in the specification and pointed out in the claims.
  • Figure 1 is aface elevation of the level when unfolded;
  • Fig. 2 is an edge view thereof when folded;
  • Fig. .3 is a face elevation thereof when folded, on a larger scale;
  • Fig. 4 is a perspective view of the level at the hinge-joint, shown partlyopen.
  • the object of my invention is to construct a builders level in two foldable or hinged sections so that the level (usually several feet in length in its open position) may be closed or',
  • a further object is toprovi e such a level with'special locking means to retain the hinged sections in perfect alinement.
  • each section comprising a board of substantially the shape shown in the i drawing, a general form well understood in the art. As shown, each board or section tapersoutwardly, the hinge-joint being at the widerend of the board.
  • One of the sections is provided with a water or spirit level 2, protected'by a slotted plate 3, 'said level being located adjacent to the hinge-joint.
  • the meeting ends of the hinged sections are provided with depressions 4, 4, which register with the unfolding of the sections, jointly forming a hand-hole whereby the level can becarried about as desired.
  • Thishole is approximately midway between the up or and'lower edges of the level as shown. neath the hand-hole-there is located embedded in one of the sections adjacent to the hinge line, a metal socket 5 within which operates a sliding bolt 6 said bolt terminating inalaterally disposed l11' 0I" fingerhold 7 operatin through a sldt 8 in the exposed side wa l' of the socket, a suitable complementary.
  • a builder'slevel composed'of two fiat boards tapering toward one end, a hinge coupling the same toether at their opposite ends,'the hinge joint eing disposed parallel to the faces of the boards, a spirit level mounted on one of the boards adjacent the hinge 'oint, the boards having alining depressions ormed on ,oppo- 'site sides of the hinge-joint whereby'a handhole is formed upon the unfolding 0f'the' boards, complementary sockets carried by the boards on opposite sides of the hingejoint, a bolt mounted in one of the sockets and adapted to partially enter the complementary socket upon an unfolding of the boards whereby the latter are held rigidly in their unfolded position and in alinement, and means for clam ing the free ends of the boards when fo ded, substantially as set forth.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Description

No. 885,658. PATENTBD APR. 21, 908.
N. ABRAHAMS.
BUILDBRS LEVEL.
APPLICATION FILED NOV. 13, 1907.
IN VEN TOR.
Naffzan flbrahams NATHAN ABRAHAMS, OF ST. LOUIS, MISSOURI.
Specification Letters Patent.
BUILDERS LEVEL.
Patented April 21, 19Q8Q Application filed November 18, 1907. Serial No. 401,966.
To all whom it may concern:
Be it known that I, N ATHAN ABRAHAMS, citizen of the United States, residing at St. Louis, State of Missouri, have invented certain new and useful Improvements in Builders Levels, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings,
forming a part hereof.
My invention has relation to improvements in builders levels; and it consists in the novel construction of level more fully set forth in the specification and pointed out in the claims.
In the drawings, Figure 1 is aface elevation of the level when unfolded; Fig. 2 is an edge view thereof when folded; Fig. .3 is a face elevation thereof when folded, on a larger scale; and Fig. 4 is a perspective view of the level at the hinge-joint, shown partlyopen.
- The object of my invention is to construct a builders level in two foldable or hinged sections so that the level (usually several feet in length in its open position) may be closed or',
folded when not in service, therebyminimizing the amount of ,room taken upby the same while being carried fromlace to place.
A further object is toprovi e such a level with'special locking means to retain the hinged sections in perfect alinement. The advantages thereof will be better apparent from a detailed description of the invention which is as follows:
Referring to the drawings, 1,, 1, represent,
.two sections foldable against each other about the hinge h, each section comprising a board of substantially the shape shown in the i drawing, a general form well understood in the art. As shown, each board or section tapersoutwardly, the hinge-joint being at the widerend of the board. One of the sections is provided with a water or spirit level 2, protected'by a slotted plate 3, 'said level being located adjacent to the hinge-joint.-
The meeting ends of the hinged sections are provided with depressions 4, 4, which register with the unfolding of the sections, jointly forming a hand-hole whereby the level can becarried about as desired. Thisholeis approximately midway between the up or and'lower edges of the level as shown. neath the hand-hole-there is located embedded in one of the sections adjacent to the hinge line, a metal socket 5 within which operates a sliding bolt 6 said bolt terminating inalaterally disposed l11' 0I" fingerhold 7 operatin through a sldt 8 in the exposed side wa l' of the socket, a suitable complementary. socket 5' being embedded in the ad'acent section to receive the end of the bolt w en the parts are unfolded, and thereby lockthe sections rigidly together and hold them in perfect alinerhent. When the sections are folded, they are held together at their free ends by a spring latch 8 hinged to a plate 9 screwed to the outer face of oneof the sections, the free end of the latch closing over. the exposed face of the free end of the .op osite section (Fig. 2).
avingdescribed my invention, what I claim is:
' As an article of manufacture, a builder'slevel composed'of two fiat boards tapering toward one end, a hinge coupling the same toether at their opposite ends,'the hinge joint eing disposed parallel to the faces of the boards, a spirit level mounted on one of the boards adjacent the hinge 'oint, the boards having alining depressions ormed on ,oppo- 'site sides of the hinge-joint whereby'a handhole is formed upon the unfolding 0f'the' boards, complementary sockets carried by the boards on opposite sides of the hingejoint, a bolt mounted in one of the sockets and adapted to partially enter the complementary socket upon an unfolding of the boards whereby the latter are held rigidly in their unfolded position and in alinement, and means for clam ing the free ends of the boards when fo ded, substantially as set forth.
In testimony whereof I afiix my signature, in presence of two witnesses.
' NATHAN ABRAHAMS. 'Witnesses:
EMIL STAREK, MARY D. WHrrooMB.
US40196607A 1907-11-13 1907-11-13 Builder's level. Expired - Lifetime US885658A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US40196607A US885658A (en) 1907-11-13 1907-11-13 Builder's level.

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Application Number Priority Date Filing Date Title
US40196607A US885658A (en) 1907-11-13 1907-11-13 Builder's level.

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US885658A true US885658A (en) 1908-04-21

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US40196607A Expired - Lifetime US885658A (en) 1907-11-13 1907-11-13 Builder's level.

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2807888A (en) * 1956-05-28 1957-10-01 Andrew C Thomas Plumb indicating device
WO2003106926A1 (en) * 2002-06-12 2003-12-24 Robert Lowe Foldable spirit level
US6836973B1 (en) * 2002-04-30 2005-01-04 Eccles Jr Thomas Versa level

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2807888A (en) * 1956-05-28 1957-10-01 Andrew C Thomas Plumb indicating device
US6836973B1 (en) * 2002-04-30 2005-01-04 Eccles Jr Thomas Versa level
WO2003106926A1 (en) * 2002-06-12 2003-12-24 Robert Lowe Foldable spirit level
GB2389655B (en) * 2002-06-12 2006-03-01 Robert Lowe Spirit level

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