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7726033 |
Multi-point measuring method and surveying device
There are provided a telescope unit (5) having a first image pickup unit for acquiring a wide-angle image and a second image pickup unit for acquiring a telescopic image with higher magnification...
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7411512 |
Tracking the geographic location of an animal
Systems and techniques for tracking the geographic location. In one aspect, a method includes receiving timed magnetic field information descriptive of a magnetic field to which a magnetometer was...
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6739063 |
Combination compass
A combination compass. The compass includes a housing, a compass device mounted inside the housing, a top cover pivoted to one end of the housing and capable of covering over the compass device....
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6718644 |
System for aligning a hub/mast with a soffit penetration point and method of using same
A system for aligning a hub/mast with a soffit penetration point uses an insert that is similar in shape to a terminal adapter that is threadably received within a hub of a meter base. An opening...
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6625895 |
Servo-controlled automatic level and plumb tool
A method and apparatus for leveling at least one output light beam in a construction tool. One embodiment of the apparatus includes a laser optical assembly for producing output light beams that...
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6473980 |
Infrared laser transmitter alignment verifier and targeting system
A relatively inexpensive system is provided for detecting and visually indicating the relative location of the impact on a target of an invisible infrared laser beam emitted from a small arms...
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5966826 |
Dual usage level marking instrument
A dual usage level marking instrument is provided that includes a leveling rod. This rod has a dotted-type laser device fixed at one end and a straight-type laser device fixed at the other end....
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5842282 |
Laser angle adjustment device for laser measuring instruments
A laser angle adjustment device for laser measuring instruments including a rectangular casing, a fixed bubble level and an adjustable bubble level mounted on the casing at right angles, a barrel...
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5784792 |
Hand-held laser level grade checking device
A tool for use in checking the level or grade of the ground surface in a construction area or site using a daylight visible wavelength semiconductor laser diode module to project a laser beam from...
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5666736 |
Self-adjusting level for determining leveling between two distant points
A self-adjusting level for determining the leveling between two distant points is disclosed. It mainly contains a main body and a light beam indicator. The main body contains a flame having two...
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5604987 |
Laser level, accessories and method of use
A support for a laser beam generator in a carpenter's level is positioned on the level so that the laser beam generated will lie in the plane of a flat reference surface of the level. A battery or...
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5487222 |
Combination level
A combination level has a rectangular housing and liquid-filled vials each having an entrained gas bubble to indicate horizontal level and vertical plumb at a local location. A scope element is...
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5465492 |
Alignment device for a hand tool
The device has a fixed rod 15 aligned with the working axis of the tool, e.g. a pistol drill. The rod 15 is in spring biassed, telescopic sliding engagement with a tube 16 fixed to an indicator...
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5461796 |
Gunsight device for rotating-wing aircraft
A gunsight device for a rotating-wing aircraft having a hollow rotor hub (1), on which there are radially mounted blades constituting said rotating wing, and which is connected to the main...
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5410815 |
Automatic player identification small arms laser alignment system
A fixture automatically aligns a laser transmitter bolted to a rifle. A case is horizontally oriented and a hinged end cover is swung upwardly to reveal a control unit. The barrel of the rifle is...
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5394616 |
Laser positioning device
A laser positioning device is provided in which a level is associated with a demountable mounting set-up and a plate member. The plate member projects laterally from the level and is scribed with a...
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5124844 |
Method and apparatus for locating celestial objects
A method and an apparatus for locating in the sky celestial objects, using a telescope, wherein two guide stars and the celestial object are represented, according to their respective locations, on...
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5035060 |
Method of mapping underground mines
A method wherein a light emitting device, such as a laser, is used to precisely measure strike measurements of planar geologic features; for example, bedding planes, fractures, or fold axes. A...
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4594788 |
Light-tight combination micrographic map-reader protractor compass
A movable film cartridge with at least one view superimposed by a protractor image on transparent film is further provided with a compass viewed through a prism at an edge of the field of view of...
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4517749 |
Stable plumb beam optical projector
A viscous dampened sensitive pendulum carries a generally upwardly directed light source for indicating the gravity vertical. The sensitive pendulum is carried for two degrees of pivotal freedom by...
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4480390 |
Apparatus and method for aligning an object with respect to top-dead center of a wheel
The invention provides an optical alignment method and apparatus for aligning a selected object with respect to an top-dead-center portion of a substantially circular wheel. A base mounted on the...
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4459758 |
Topographical surveying instrument
The present invention relates to a topographical surveying instrument, comprising: a horizontal table bearing a shaft perpendicular to the plane of the table, a device adapted to rotate on the...
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4395828 |
Combination geodetic transit compass and signal mirror
A geodetic compass having a mirrored cover that has the dual purpose of providing means for reading the compass needle orientation for geodetic purposes, while at the same time having cross hatch...
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4347739 |
Measuring equipment for the determination of terrestrial refraction
A measuring arrangement is described for determining the terrestrial refraction in geodetic measurements, (such as trigonometric height transfers when staking out and for precision tachymetry,...
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4343090 |
Suspension device for angle indicator
A suspension device for an angle indicator intended to indicate the angle of an object to the vertical line and comprising two angle-indicating devices designed each to indicate a predetermined...
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4305209 |
Adaptor
An adaptor for mounting one instrument, such as an electronic distance measuring device, atop another instrument, such as a telescope or theodolite, for movement together about a horizontal axis...
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4236324 |
Aircraft glide path teaching aid
A gimballed sight tube is mechanically positioned in alignment with a pilot's forward line of sight and it is set at a predetermined glide path angle. During a landing approach, the runway will be...
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4232449 |
Bore sighting apparatus
The bore sighting apparatus or alignment device is comprised of a two-part ring hinged together and provided with a clamp for securing the ring on the muzzle of a howitzer. A pair of hinged witness...
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4219939 |
Method and device for surveying the basal area of a forest stand
The present invention relates to a method and device for carrying out a survey of the basal area of a forest stand and the distribution of the individual trees with respect to diameter classes.The...
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4112584 |
Telescope level adjusting means
Fine adjustment of a surveying instrument telescope reference spirit level is effected by rotating the bubble vial of the level about an axis which is slightly angularly displaced from the...
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4060908 |
Sighting device for relocation of site
A folding sighting device to define and then to relocate the point where the user is placed, said device allowing the user to simultaneously identify linearly opposite reference points to establish...
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3940858 |
Method of measuring antenna reflector surface accuracy
The antenna reflector whose surface is to be measured is mounted on a moderately level surface. A relatively thin full diameter template is located sequentially at n different locations in the...
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3922921 |
Method and apparatus for measuring sewer sedimentation infiltration and flow
An elongated upstanding probe for lowering down into a sewer manhole is provided and at least the upper end of the probe is graduated. A lower end portion of the probe includes an adjustable clamp...
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3908991 |
Putting aid
A putting aid includes a base bar and an upright bar pivotally connected to the center of the base bar to be foldable into alignment with the base bar for storage in a golf bag and to be held in a...
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3874087 |
SURVEYING INSTRUMENT
A surveying instrument combining a theodolite or transit and an electro-optical telemeter in which the transmitter and receiver of the telemeter are arranged in gravity-symmetrical relationship...
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3871104 |
Alignment sighting device
An alignment sighting device comprising a pair of hollow lenses in an eyeglass frame, each having intersecting horizontal and vertical cross-hairs and colored liquid filling the hollow interior of...
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3823313 |
LASER FANNING DEVICE
A laser generator is mounted on a conventional transit for rotation about a vertical axis. A crank is interconnected at one end to the support structure of the transit and at its other end to the...
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3650034 |
METHOD AND APPARATUS FOR OPTICAL ALIGNMENT
A method and apparatus for establishing a line of measurement normal to an optical line of sight, the apparatus including a linear scale and a viewing box adjustably connected to the scale. The...
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3596359 |
MERIDIAN DETECTOR
A device for determining the position of a meridian which includes a gyrope mounted on a horizontal axis and which is supported so that it tends to point north. The gyroscope is suspended on a...
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3590704 |
METHOD FOR MEASURING A POSITION OF A SHIP AT SEA
A method for measuring a position of a ship at sea by taking picture of observed markings with a wide angle camera provided with a pivoting lens mounted in a bodytube formed with a slit at its...
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3498673 |
MACHINE GUIDANCE SYSTEM AND METHOD
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3475821 |
SUB-TARGET AIMING DEVICE
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3458940 |
LEVEL-ESTABLISHING DEVICE
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3417474 |
Gyrocompass
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3279070 |
Automatic grade light
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3199198 |
Level sighting device
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3188739 |
Multi-directional optical target
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3127682 |
Nadir point determining instrument
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3083464 |
Surveyor's transit theodolite chaining attachment
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3080659 |
Container gauging apparatus
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