Internal locking mechanism

January Maryland becomes the first state to require that new handguns be equipped with internal locking mechanisms. 

States with such laws are Connecticut, Delaware, Florida, Hawaii, Maryland, Massachusetts, Minnesota, Nevada, New Jersey, North Carolina, Rhode Island, Texas, Virginia, and Wisconsin. In 2003 Maryland became the first state to require that all new handguns sold include internal trigger locking mechanisms. New Jersey has passed a law requiring smart gun technology that allows guns to be fired only by authorized users, but the law... 

Automatic slack adjuster mechanism malfunction. This can include a damaged or stuck internal clutching mechanism, lack of grease leading to a lock-up of the internal mechanism, or a broken internal part. 

FIGURE 3.56 Illustration of the quick-connect fitting for installation of capillary columns (a) internal sealing mechanism and (b) sealing mechanism inserted into fitting and locked into place (photographs courtesy of the Quadrex Corp.)... 

A safety door mechanism to prevent opening while the unit is under pressure. The locking device may be actuated directly by internal pressure or indirectly through an automatic switch. The door itself may be the swing-out or sliding type. 

Figure 1. A, schematic of the commercially available Teflon flowthrough diffusion cell produced by Vanguard International. The skin is secured in place by screwing the donor portion of the cell into the diffusion cell body. B, schematic of the modified Teflon diffusion cell. The skin is secured in place by a spring-loaded clamping mechanism. The inlets to the diffusion cell are luer lock compatible.

Materials Photoacoustic measurements were made on a component-assembled PAS spectrometer consisting of a 9W argon ion laser (Spectra Physics), a 0.5 cc internal volume PAS cell equipped with a sensitive electret microphone (Radio Shack, 3.2 mV/Pa). Circular polarization modulation was achieved with a special low frequency (220 Hz) photoelastic modulator (15) (Hinds International). Signals were detected and processed with a vector tracking lock-in amplifier (PAR model 5204), and intensity modulation was done with a 30-slot blade mechanical chopper (Ortec). Syntheses of all compounds were by well established literature methods. 

The seam which joins the two edges of the rectangular blank together to form the container body may consist of a lap seam, a butt seam, a locked seam or a Mennen powder seam. Both lap and butt seams require the addition of a joining compound to make them mechanically secure. The locked seam is strong in tension but weak in compression and is therefore used for containers which need to withstand internal pressures, e.g. aerosols, whereas the Mennen seam is used when the container needs to withstand compression, e.g. talcum powder containers (Figure 10.5). 

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