FR2747465A1 - Air bubble level with string tracing for horizontal and alignment marking on walls and ceilings etc. - Google Patents

Abstract

The level(1) has at one end a cotton string(8) wound on a spool(11) which includes a string locking system. The level(1) is also fitted with three air bubble containers(2) and a graduated scale(6). For vertical, horizontal and angled precision tracing over relatively long lengths the level has an alignment system(7) fitted with a spring having reference points(10) which aids the alignment of the string(8), its end hook(9) with the level(1)

Description

the present invention relates to a vial level
(air bubble) whose proorities will be to make alignment lines on the walls, level marking of several meters in length.

 Thanks to its reel provided with a cotton thread to trace, the importance of the time of marking on the walls is reduced in the use of this level.

 No more clutter of aluminum rdle for tracing as it is usually done or the use of a mason's water level require a longer preparation time: trace for the same part.

 Two users may be necessary depending on the length of the tracing, but only one may also be.

 The cotton thread to be traced smooths under the face of the underside of the level, the reel is unrolled by pulling on the cotton thread. the reel is also fitted with a locking system: brake.

 An alignment tracking device on the underside of the level is placed on its @@@@ he @@@@ part and the level control is @@@ user. and wire to @@@ nement The device is presented as @@@@ @ne @etite suspension provided with three points of @e @@@ @ ali @@ ement.

 Referring to the drawing 1 tool @@@ thus presented, FIG. 1 represents the level (1) and its developed system, FIG. 2 and 3 represents the @@@ eau (1) and its system with respect to tracing.

 The level (1) is characterized by the following @ açon, of rectangular constitution.

Its tracing length (8) can be variable depending on its @abarit (1)
The lower dr @ ite level (1) has a rounded angle which allows the cotton thread (8) to be drawn to slide.

 The lower left. she. a @@@ ndie also but of a lower height to avoid that @rs of the tension of the cotton thread (8). this one does not @@ ive an English line.

 It can be made of aluminum metal or a stainless alloy.

 Three unbreakable vials (2) (air bubble) are positioned one along its length for the horizontal trace a second for the vertical trace and the last in a housing describing an angle of 360 degrees with graduated dial (6) for the plotted in an oblique position.

 The part positioned on the wall and of flat surface for a better plate of it.

 The level (1) is equipped inside its structure with a reel (11) with a winding blocking and unwinding system for cotton thread (8) to be traced, with different windings depending on the level gauge ( 1).

 The reel cavity (16) contains the tracing powder.

 The crank (12) of the reel (11) is fixed to the casing (14) supported on the lateral part of the level (1) by four screws (13).

 The casing (14) also includes the filling plug (3) of tracer powder.

 The end of the cotton thread (8) has a curved retaining ring (9) provided with a hole, for the passane a nail.

 For 1 use at deu @, one maintains the level (1) at its benchmark, 1 other person unrolls the cotton thread (8) to its desired length.

 A tension is exerted which produces the rigidity of the cotton thread (8), it suffices to link to establish the alignment marking in continuity of the level (1).

 The continuity is from the underside of the level (1) whose cotton thread (8) is held by two hooks (5) removable and curved flat at their ends.

The starting point of the cotton thread (8) is the hole
(4).

The orifice (4) is decorated with a notched plastic washer to limit]. cotton thread wear (8)
The perforation (15) serves to suspend the level (1).

 The projecting part (7! Made of plastic material divided into two elements: one male the other female fitted with a spring, allows this device the effect of suspension which under the passage of the stretched cotton thread (8) becomes retractable.

 Benchmarks (10), monitoring point for system withdrawal (7).

 The three reference points (10) meet under the action of the tension of the cotton thread (8) gives tracing at level of perfect assurance in control with the vial (2).

 A poorly controlled level take-off in FIG. 3 no longer matches the trots with the reference point (10) dCt to this reduced left part of the level (1).

 The articulated crank (12) is foldable for better protection thereof.

 A rubber tongue for the protection of the underside of the level (1) can be envisaged as well as a storage box for @@ n @@ water (1).

 For short lengths a person can use the level (1) alone.

 Starting point for tracing, by threading a nail in the ring (9); cotton thread tension (8); ; level alignment (1) and linkage marking.

 The complementarity of this level (1) is based on the novelty: tracing distance in relation to its size.

Claims (5)

 Level to be traced with cotton thread, for tracing a horizontal plane which can describe the perimeter of a type of dwelling for the installation of a false pla + ond, laying of tiles, frieze etc ...  1) Flask level (t) (air bubble) with reel (11) of fi :! of cotton (8) with winding and unwinding with blocking system: + kidney.  This level will constantly avoid reproducing the starting line  For vertical or oblique position tracing of long alignment lines. precisely fitted with an alignment system (7).  2) Combination of elements assembled according to claim 1 characterized in that the level t1! provided with these three positioning vials (2) including a graduated one (6) and its cotton thread (8) allows instant markings i of horizontal, vertical planes and also in oblique positions. The vials (2) must be of great precision with an air bubble well framed in its unbreakable plastic space.  3) Combination of elements assembled according to claim characterized in that the device (7) made of two plastic parts in superposition, 1 a male the other female, they are equipped with a spring provided with reference points (10 ) makes it possible to make the parallel junction of the level (1) and the cotton thread (8) provided with a ring (9) curved and perforated. When the cotton thread (8! Is in tension before tripping, the device (7! Has no ascending action.  4) Combination of joined elements according to claim characterized 7. an that the output of the cotton thread (8) passes through the orifice (4) starting point of the cotton thread (8) decorated with a plastic washer indented to limit the wear of the cotton thread (8) retained by two hooks (5) of removable flat metal curved at their ends. The removable hooks (5) allow a rewinding of cotton thread (8) more quickly by reversing the level (1) in the extension of the cotton thread (8)  5) Combination of elements assembled according to the preceding claims characterized in that the alignment system (7) is actuated by the cotton thread (8) in tension delivered by the reel (11) set in motion by a crank (12) ) articulated retained by a casing (14) fitted with a filler cap (3) of tracer powder and its reserve (16) held by four screws (13) and an orifice (15) to suspend the level ( i) in fixed assets.