Masonry Saws are designed to cut bricks & blocks. There are two main types of masonry saws, they are production models and portable models. Production saws are large, very heavy and not generally designed to be loaded up & moved from job to job regularly. The portable saws are also large & heavy, but rest on a collapsing or folding stand.

Masonry tools are used for raking unhardened mortar at the predetermined depth between courses of brick at either open wall locations or within tight corners. This tool comprises an elongated handle having an upper side and a lower side, the forward and terminal ends. A rake and carriage assembly is attached to the foward end and provides a pair of wheels oriented for movement along a line substantially parallel with the handle axis. This carriage includes a first raking device which extends beyond a rim of the wheels such that a terminal portion of the raking device may project into a joint separating adjacent bricks as the wheels roll across an exposed face thereof. A second raking device is attached at the terminal end of the handle and projects upward with respect to the upper side to substantially the same predetermined depth as that depth provided with the first raking device.

Mass dampers can be an effective and practical means for reducing resonant vibration in structures. Wide span structures (bridges, spectator stands, & large stairs) as well as slender tall structures tend to be easily excited to high vibration amplitudes in one of their basic mode shapes. Low natural frequencies are typical for this type of structures, due to their dimensions, as is their low damping. With mass dampers, these vibrations can be reduced very effectively.

A mass flow controller is used to measure and control the flow of gases. It is designed and calibrated to control a specific type of gas at a particular range of flow rates. It can be given a setpoint from 0 to 100% of its full-scale range but is typically operated in the 10 to 90% of full scale where the best accuracy is achieved. The device will then control the rate of flow to the given setpoint. All mass flow controllers have an inlet port, an outlet port, a mass flow sensor and a proportional control valve.