285 results about "Spirit level" patented technology

A sawhorse extender attachment adapted to be affixed to the cross beam member of a conventional sawhorse that allows the effective length of the sawhorse to be adjusted. The attachment device comprises a base member having a dove-tail groove extending the full length thereof along with a pair of extension members of a trapezoidal cross-section adapted to slidingly fit within the longitudinal groove in the base member. The extension members can be extended and retracted relative to the length of the base member and locked in place at predetermined locations along the length of the elongated dove-tail groove. Provision is made for stops placed into the extension members to be selectively deployed where the stops project above the top surface thereof for inhibiting lateral shifting of any work piece resting on the sawhorse extender. The sawhorse extender attachment is designed to incorporate various accessories, including workpiece clamps, electrical outlets, a saw guide and spirit level.

A level has a level body made of a hollow profiled section having a bottom wall whose underside forms a measuring surface and further having a top wall and sidewalls, the sidewalls connecting the bottom wall and the top wall. The level body has a window opening for receiving a horizontal vial for horizontal measurement. A securing device for mounting the horizontal vial within the level body is provided. The securing device has a vial holder, in which the horizontal vial is secured, and at least one clamping part that is movable relative to the vial holder for clamping the securing device in the level body. In the mounted state of the securing device, the at least one clamping part is supported on an inner side of the top wall and the vial holder is pressed against an inner side of the bottom wall.

A spirit level is added to the club head of a golf club, such as a golf club driver, and observation of the level indicator bubble in the spirit level tells the golfer the level alignment of the golf club head, in the direction of the intended golf ball flight, when the golf club is in position to drive the golf ball. When the golf club head is level in this direction, the golf club face is in the proper position for striking the golf ball. The spirit level is constructed to withstand the speed of the golf club head as it is swung towards the ball, as well as the impact in striking the ball. The spirit level also functions as a golf club sight alignment indicator as pointing to and being aligned with the proper position at the center of the golf club face that should come in contact with the golf ball. The alignment indication aspect of the spirit level may also be enhanced by alignment indication markings on the top of golf club head for indicating the proper position for alignment of the golf club.

A bubble element for a spirit or water level includes a bubble element body composed of a transparent material and having a hollow interior containing a bubble element fluid and marking rings for indicating a center position of a bubble enclosed in the bubble element fluid. At least over a middle portion of the bubble element body in the longitudinal direction which contains the marking rings, an upper side of the bubble element body has a surface which curves around the longitudinal axis of the bubble element body, wherein the curved surface is connected with a continuous curvature and without edges to side surfaces of the bubble element body. At least over the middle portion of the bubble element body, the surface forming the upper side of the bubble element body extends additionally convexly curved in the longitudinal direction of the bubble element body and, seen in the longitudinal center section of the bubble element body, the wall thickness of the bubble element body increases in the middle portion toward the middle of the longitudinal extension of the bubble element body.

A vial, level including such vial, and method of using such level are disclosed. The vial comprises a body having first and second ends, a midpoint, and interior and exterior surfaces, at least one marker ring connected with respect to the body, a bubble positioned in the cavity and defined by an interface, and first and second dark-colored bands circumscribing the cavity. The vial enhances the visibility of the bubble through the reflection of the first and second bands on the interface such that the interface along the perimeter of the bubble appears dark-colored.

The drainage pipe slope measuring device includes a housing having an upper surface and a lower surface. The upper surface has an opening formed therethrough, the lower surface preferably having a substantially concave or arcuate cross-sectional contour adapted for flush mounting against the drainage pipe. A spirit level vial is mounted within the housing and is positioned adjacent the opening. The vial is preferably formed from at least partially transparent or translucent material and is adapted for containing a liquid and a gas bubble. Indicia is formed on the container and is visible through the opening so that, when the housing is mounted on the drainage pipe, a position of the gas bubble with respect to the indicia provides the user with a visual indication of the slope of the drainage pipe. The vial is preferably divided into separately colored regions to provide the user with further visual contrast.

The invention concerns a spirit level (10) including a base body (11), e.g., in the form of a hollow profile, as well as a bubble level vial (12), formed of a vial body (14) with enclosed cavity (16), preferably of barrel shape, the vial being secured in the base body by means of a holder (28). The cavity contains a liquid (18) with gas bubble (20) floating therein and the vial body has end face regions (32, 36) running transversely to the lengthwise axis of the cavity. In order to achieve a high contrast between the end of the bubble and the liquid, it is proposed that the vial body (14) be joined to the holder (28) by an intimate material connection in the at least one end face region (32, 36) and that the holder and/or the intimate material connection be contrast intensifying in the region of the at least one end face region.

The present disclosure includes an extendable plumb and level measuring device and associated usage method. The device can utilize interconnected members including a first, a second, and a third member. For example, the third member can be slidingly disposed within the first and second members to extend the device to a set and arbitrary length. The measuring device utilizes a spirit level or digital reader to determine when the device itself is level responsive to positioning a extendable stopper against a construction, such as a wall, door, panel, and the like. Once level, a measuring device, such as a ruler, disposed within the device can be utilized to measure the plumb of the construction. Additionally, the device can function as an extendable level to measure an arbitrary length.

The invention discloses a flatness tester for a high-precision metal sheet. The flatness tester comprises a base, extension blocks are symmetrically and fixedly arranged at a left side and a right side of the base, a lifting plate is arranged at an upper side of the base, a top space with a downward opening is arranged at a bottom side of the lifting plate; pigment is firstly added from a throughhole, and then an L-shaped plate is pulled to two sides, and then an entering plate can be placed between cushions, and then the L-shaped plate is released. The device can perform flatness testing onthe processed metal sheet; compared with the simple spirit level, the device can obtain irregular point or line or surface through the measurement; compared with the expensive laser detector, the device disclosed by the invention is not only low in cost, the irregular surface or point can be found out, and the irregular surface or point can be marked through the pigment.

A water or spirit level is composed of an elongated body, preferably of metal, at least one bubble mounted in the elongated body, and end caps, preferably of plastics material, at the end faces of the elongated body, wherein at least one outer surface of the elongated body constitutes a preferred measuring surface. At least one of the end caps is releasably connected to the level body such that the end cap can optionally be removed and once again replaced.

A multi plane plumb level includes an elongated rigid frame having an X shaped cross section having four walls that are rigidly joined along an elongated central portion of the X shaped cross section and extend outward from the elongated central portion of the X shaped cross section and six level indicating bubble vials that are mounted on front and back sides of the frame in opposing pairs. A pair of flip out transversely oriented bubble vials rotates from secured positions within the front and back sides to extended positions, forming extensions of frame walls to facilitate the leveling of posts, pipes and edges. The remaining two pairs of bubble vials provide level measurements in the longitudinal direction and at a 45 degree angle.

The invention provides a tunnel deformation real-time monitoring device and method. The tunnel deformation real-time monitoring device comprises a plurality of spirit levels and a laser distance measuring instrument, wherein the spirit levels are arranged at the top part of a tunnel and are used for measuring the vault crown settlement of the tunnel; the laser distance measuring instrument is arranged at the side wall of the tunnel, and is used for monitoring the surrounding convergence of the tunnel; the spirit levels and the laser distance measuring instrument are electrically connected witha data collection device, and the data collection device is electrically connected with a data base station. In the use process, the method comprises the following steps of selecting the deformationmeasuring points of the tunnel, and arranging the spirit levels, the laser distance measuring instrument, the data collection device and the data base station, so as to monitor the vault crown settlement and the surrounding convergence of the tunnel. The tunnel deformation real-time monitoring device and method have the advantages that the vault crown settlement and the surrounding convergence ofthe tunnel are respectively measured by the spirit levels and the laser distance measuring instrument, so as to more reliably monitor the deformation of the tunnel in real time; by arranging the monitoring type of data collection device and data base station, the unmanned duty type monitoring can be realized.

The invention discloses a spirit level for power transmission line n-shaped rod construction. The spirit level for power transmission line n-shaped rod construction comprises a span measuring ruler used for measuring the horizontal distance between two rod pits of an n-shaped rod and two depth measuring rulers arranged on the end portions of the span measuring ruler respectively. The span measuring ruler comprises a ruler sleeve and a telescopic ruler core sleeved inside the ruler sleeve. The outer surface of the ruler core is provided with a scale. A level gauge is arranged on the outer surface of the ruler sleeve. The depth measuring ruler comprises a lower ruler and a telescopic upper ruler sleeved inside the lower ruler. The outer surface of the upper ruler is provided with a scale. The spirit level for power transmission line n-shaped rod construction is convenient to use and capable of directly measuring the horizontal distance between the two rod pits and the perpendicular distance between the bottom faces of the two rod pits, offering instructive parameters for n-shaped rod construction, omitting a large number of calculation processes and improving the construction efficiency to a large extent. In addition, the spirit level for power transmission line n-shaped rod construction further has the advantages of being small in error, easy to transport and store and the like.

A digital spirit level for displaying inclination measurements of vertical surfaces upright relative to 0° horizontal for facing a user holding the digital spirit level against a vertical surface for facilitating straight on reading of its inclination measurement. The inclination measurements are preferably displayed relative to 0° vertical as opposed to 0° horizontal. The inclination measurements are displayed on either a display screen including a pair of orthogonal seven segment arrays or a graphic display screen for displaying inclination measurements upright relative to 0° horizontal irrespective of the attitude of the digital spirit level thereto. The digital spirit level preferably includes either a self-calibrating capacitative inclination measurement module or alternatively a closed loop inclination measurement module employing an electric field for maintaining a meniscus of a dielectric liquid at a predetermined reference position.

Disclosed is a double-bead horizontal and vertical spirit level having a transparent tube contains an air bubble, a basic liquid and bead insoluble in the basic liquid and having a density greater than that of the basic liquid. By comparing the relative positions of the air bubble and bead, the spirit level gives precise measurements. An apparatus using the spirit level and protractor can measure horizontal tilt angles of upper and lower surfaces, and vertical tilt angle of the vertical plane; it can also be further combined with a laser pen to measure the angle of elevation, distance, height of a remote object, tilt angles, draw a horizontal and plumb line. An apparatus where the long axis of spirit level is perpendicular to the axis of pivot, the long axis doesn't need to pass the axis of pivot and the space could be used to install a laser pen.

Spirit levels including a horizontal bubble vial with improved bubble visibility for assisting user readability for leveling purposes. The improved bubble visibility is achieved by coloring a bubble's uppermost surface as perceived by a user.