Abstract: A first component with a first sidewall and a second component with a second sidewall may be mounted onto an expandable film such that an original distance X is the distance between the first sidewall and the second sidewall. The expandable film may be expanded such that an expanded distance Y is the distance between the first sidewall and the second sidewall and expanded distance Y is greater than original distance X. A first sidewall material may be applied within at least a part of a space between the first sidewall and the second sidewall. The expandable film may be expanded such that a contracted distance Z is the distance between the first sidewall and the second sidewall, and contracted distance Z is less than expanded distance Y.

Abstract: Methods and systems are provided for a high-angle sight mount for a projectile launcher. In one example, a system for a sight mount may include a base, a cartridge configured with a quick-release element and adapted for insertion into a cylindrical chamber coupled to the base, and a plurality of cams coupled to the cartridge and adapted to engage with a surface of the mounting platform of the sight mount to adjust an angle of a mounting platform relative to the base.

Abstract: A stud marking device for easily and quickly marking locations of studs. The stud marking device includes a handle having a tubular base member having a pair of prong-like members extending outwardly from a bottom thereof, and further having three telescopic members slidably and lockingly extended within one another, and further includes a wheel being of many different sizes and being rotatably mounted to the prong-like members. As a first embodiment, the wheel has a bore radially extended through the circumference with a marker being threaded in the bore and having a marking end which extends outwardly beyond the circumference.

Abstract: A scale printing instrument wherein one or more printing toothed wheels are rotatably held by a tip end of a grip member, an arm is carried by said grip and a brush containing a printing composition such as ink is provided at a tip end of said arm. With this instrument, when the wheel or wheels are run on paper while keeping the wheel or wheels in contact with the paper, the ink is furnished to the toothed wheel to print a scale having given intervals on the paper.