A tape measure device for measuring pipes includes a spring return positioned in a housing. A tape is engaged to and is loopedly positioned around the spring return. The tape is selectively extensible from a front of the housing via a slot. A recess in a bottom of the housing extends from the front to a back and to proximate to the slot. A hook engaged to a second end of the tape can selectively engage a terminus of a substrate, enabling a user grasping the housing in a hand to extend the tape along the substrate. Indicia on the tape allow measurement of a distance from the second end of the tape. A fastener on the bottom of the housing can selectively engage the substrate to removably engage the housing to the substrate so that the user can release the housing.

A plot measurement system which enables a user to singlehandedly mark boundaries and features of a sports field or construction site with improved accuracy. The system utilizes a plurality of vertex markers connected by measuring leaders to provide triangulation. A three-vertex marker system can be used to construct triangles, which can then be used to construct any n-sided shape. The concept is scalable and a four-vertex marker system is presented to quickly construct quadrangle plots such as an endzone. The disclosure presents mechanical and electrical systems.

A ratio tape measure has a case, a reeling unit, a ratio wheel unit, a decurling wheel, and a tape measure unit. The case has a reeling shaft, a ratio shaft, and a decurling shaft. The ratio wheel unit has a first perimeter wheel mounted around the ratio shaft and a second perimeter wheel mounted around the ratio shaft. The decurling wheel is rotatably mounted around the decurling shaft. The tape measure unit is wound around the reeling unit and the ratio wheel unit and has a first tape and a second tape. When the first perimeter wheel and the second perimeter wheel rotate, the first tape and the second tape can be pulled out at a fixed ratio, and a user can measure two lengths at one time.

A tape measure device for measuring pipes includes a spring return positioned in a housing. A tape is engaged to and is loopedly positioned around the spring return. The tape is selectively extensible from a front of the housing via a slot. A recess in a bottom of the housing extends from the front to a back and to proximate to the slot. A hook engaged to a second end of the tape can selectively engage a terminus of a substrate, enabling a user grasping the housing in a hand to extend the tape along the substrate. Indicia on the tape allow measurement of a distance from the second end of the tape. A fastener on the bottom of the housing can selectively engage the substrate to removably engage the housing to the substrate so that the user can release the housing.

A plot measurement system which enables a user to singlehandedly mark boundaries and features of a sports field or construction site with improved accuracy. The system utilizes a plurality of vertex markers connected by measuring leaders to provide triangulation. A three-vertex marker system can be used to construct triangles, which can then be used to construct any n-sided shape. The concept is scalable and a four-vertex marker system is presented to quickly construct quadrangle plots such as an endzone. The disclosure presents mechanical and electrical systems.

A measuring tool comprising two tape measures. Each tape measure may be housed in a casing, and each casing may have an interface surface detachably coupled to the interface surface of the other casing. The measuring tool further comprises a level and a vertical laser. The vertical laser projects perpendicularly downward from the horizontal plane of the level. In a method to square a corner for a structure using the measuring tool, the user selects a first side to be perpendicular to a second side, calculates the diagonal therebetween using the desired lengths of the first side and the second side, attaches the measuring tapes to end points of the first side, tautly draws the measuring tapes to the lengths for the diagonal and the second side, and then marks the location using the level and vertical laser.

The multi-use tape measure comprises a semi-rigid tape measure, a flexible tape measure, a marking implement, a pencil holder, a first and second bubble level, a writing surface, and a magnetic mount in a single a case. The semi-rigid tape measure and the flexible tape measure may be deployed from within the case to make distance measurements and may then retracted back into the case. The marking implement may be tethered to prevent loss and may be used to mark a measured distance and then stored within a cavity of the case. The pencil holder may be deployed to guide the pencil in making an accurate measurement mark and may then be stored within the case. The first and second bubble levels may be used to verify level and plumb. The writing surface may record measurements. The magnetic mount may hold the case in place.

Related is a measuring tool, and particularly is a multi-functional level ruler. The multi-functional level ruler comprises a box body, the box body is internally mounted with a ruler-returning spring and a tape measure, the ruler-returning spring is wound on a shaft inside the box body, the tape measure is connected with the ruler-returning spring and wound on the ruler-returning spring, one end that is on a right side plate of the box body and close to a back side plate is provided with an opening, one end of the tape measure is provided with a stopper, the tape measure is run out of the opening, and the stopper is located at the opening; the back side plate of the box body is provided with a suction pad, a position that is on a bottom plate of the box body and close to the opening is hinged with a straight ruler, a top plate of the box body is provided with a groove, a counterweight is arranged in the groove, a position that is on the top plate of the box body and close to the opening is provided with a hanging shaft, and the counterweight is connected on the hanging shaft through a suspension wire. The multi-functional level ruler is simple in structure and convenient to carry, and capable of solving a problem that a photo frame is tilted during installation, therefore, the multi-functional level ruler is applicable to installation of photo frames of different sizes; also, the multi-functional level ruler can be used by one person to solve different horizontality problems, saving time and labour.

Implementations of a measuring apparatus to aide with hanging objects are provided. In some implementations, the measuring apparatus comprises a housing containing a level and a first coiled tape blade, a second coiled tape blade, and a third coiled tape blade. In some implementations, each tape blade includes measuring indicia and each coiled tape blade is configured to uncoil and extend outside the housing and retract to a coiled configuration. In some implementations, the first tape blade is configured to extend in a first direction, and the second tape blade is configured to extend in a second direction. In some implementations, the second direction is 180 degrees from the first direction. In some implementations, the third tape blade is configured to extend in a third direction. In some implementations the third direction is 90 degrees from the first direction. In some implementation, the third tape blade has attached to the end that extends outside the housing a weight.

A centering apparatus for facilitating alignment with a center of a surface of an object includes a housing containing a pair of coiled rule blades. The rule blades are extendable from the housing in opposite directions from each other and are operably interconnected such that the rule blades extend an equal distance away from the housing when one of the pair of rule blades is urged to extend away from the housing. A laser emitter is mounted to the housing and is centered between free ends of the pair of rule blades with respect to the housing. The laser emitter directs a laser away from the housing to facilitate alignment to measure center of a surface of an object.