An adjustable square has a blade including a scale, a body, a slot formed in the body for movably receiving the blade, a locking mechanism operably engaged with the body for releasably securing the blade within the slot, and an indexing member operably engaged with the body and operably engaged with the blade. The indexing member indexes the body at precise locations along the blade. A method for indexing an adjustable square is also provided. The method includes positioning a body of the adjustable square at a precise known position and indexing, with an indexing member of the adjustable square, the body of the adjustable square at the precise known position.

A precision decimal inch tape measure has a housing that holds a retractable measurement tape. The retractable measurement tape has a hook on an end. The retractable measurement tape has an upper measurement scale defined along an upper portion of the retractable measurement tape and a lower measurement scale defined along a lower portion of the retractable measurement tape. Both the upper measurement scale and the lower measurement scale indicate inches divided into decimal divisions. The upper measurement scale includes a cumulative foot indicia and the lower measurement scale includes a cumulative inch indicia. The cumulative foot indicia is indicated in red and the cumulative inch indicia is indicated in black. The precision decimal inch tape measure is designed to work with drawings produced in decimal inches as is the preferred standard of CAD drawings. This instant invention works with cumulative feet and inches or with cumulative inches.

A roof square for marking rafters comprising a right angle triangular body with a marking blade pivotally mounted adjacent the right angle. Either side of the square adjacent the right angle is held against the stock to be marked, and the blade used to mark either a plumb cut or a foot cut. The blade retracts to allow marks to be made at a measured depth. The tool can also be used as a conventional square to make 90 and 45 degree marks.

An improved transparent template and positioning device for aligning material to be stitched, marked or cut, the template including two overlapping lines with one or more being translucent and one or more using fluorescent pigment that will overlap their colors to create a third color forming an outline or “halo” effect of enhanced visibility, enabling the darker more precise opaque lines on the ruler to be easily seen or found on light and dark materials. The translucent lines will allow the user to see through the template to the actual material that he or she is working with in order to provide improved viewing and more accurate alignment.

Disclosed is a measuring device that is adapted for providing conversions from fractions of an inch to decimals of an inch and vice versa. The measuring device includes a ruler having a first edge opposite a second edge. The first edge includes markings for indicating units of measurement in decimals, while the second edge includes markings for indicating units of measurement in fractions. The markings in decimals directly align with corresponding markings in fractions so that the user can determine fraction-decimal equivalents by locating the alignments of the markings. Furthermore, the present invention may be a traditional ruler, a retractable tape measure, a measuring tape, a right angle ruler, or a yard stick, depending upon embodiment.

A device, system and method of augmenting measure units, symbols and patterns upon various surfaces. These surfaces are convenient for such types of measurement applications such as, but not limited to, construction tape, work desks, and locations of building code consideration and placement within innovative areas such as internal paneling. The augmented measuring system can use a repeating pattern to improve referenceability and application.

A measuring ruler, tape or other instrument having a straight edge located along at least one length of the ruler. The ruler has a first surface having a background color, and a second opposed surface. The ruler also has a set of spaced apart indicia located on the first surface along the at least one length. The indicia are oriented perpendicular to the straight edge. The width of the first indicium and last indicium of a whole number unit measurement length appear half as wide as the width of all remaining fractional indicia.

An adjustable square has a blade including a scale, a body, a slot formed in the body for movably receiving the blade, a locking mechanism operably engaged with the body for releasably securing the blade within the slot, and an indexing member operably engaged with the body and operably engaged with the blade. The indexing member indexes the body at precise locations along the blade. A method for indexing an adjustable square is also provided. The method includes positioning a body of the adjustable square at a precise known position and indexing, with an indexing member of the adjustable square, the body of the adjustable square at the precise known position.

Methods and apparatus to count people are disclosed. Example apparatus disclosed herein are to populate a list with first characteristic datasets obtained from a first plurality of images, respective ones of the first characteristic datasets representative of corresponding faces. Disclosed apparatus are also to perform comparisons of the first characteristic datasets to each other to determine a first number of unique faces, the comparisons limited to the first characteristic datasets obtained during the first period of time. Disclosed apparatus are further to delete the first characteristic datasets from the list after the first period of time has ended, and re-populate the list with second characteristic datasets obtained from a second plurality of images representative of the environment during a second period of time of the media presentation, the second period of time subsequent to the first period of time.

A precision decimal inch tape measure has a housing that holds a retractable measurement tape. The retractable measurement tape has a hook on an end. The retractable measurement tape has an upper measurement scale defined along an upper portion of the retractable measurement tape and a lower measurement scale defined along a lower portion of the retractable measurement tape. Both the upper measurement scale and the lower measurement scale indicate inches divided into decimal divisions. The upper measurement scale includes a cumulative foot indicia and the lower measurement scale includes a cumulative inch indicia. The cumulative foot indicia is indicated in red and the cumulative inch indicia is indicated in black. The precision decimal inch tape measure is designed to work with drawings produced in decimal inches as is the preferred standard of CAD drawings. This instant invention works with cumulative feet and inches or with cumulative inches.