Push-button switch

Suppose you are given a collection of pieces of hardware a motor of some sort, a couple of push-button switches, and a meter. Suppose the motor has a few wires attached one labeled start, another stop, and a third tagged speed output . The buttons and meter also have labeled connections. Now imagine connecting the components as shown in Figure 10.7. 

The first push button switch must be mounted so that the operating lever of the rifle will push it as the action closes. 

Two push button switches /normally off. (Auto supply)... 

Start by making mounts for the push button switches and the solenoid from the steel strapping. The exact design will depend on the switches and solenoid you... 

The re-filling time is longer than with pneumatic pumps it takes one to several minutes, depending on the chamber volume and whether the chamber must be rinsed or not when a new solvent is used. To re-fill the chamber, the piston must be retracted. This operation can be effected manually with a crank after disengaging the motor-piston clutch, or can be made with a second, more powerful, motor actuated by a switch (Perkin-Elmer Model 601). Depression of the Fill push-button switch of the Varian Model 8500 pump actuates the downward piston movement and, at the same time, pressurizes the solvent reservoir, allowing the chamber to be re-filled. In the ISCO Model Sl l pump, the suction created by the retraction of the piston pennits re-filling from a reservoir. 

The Varian Model 8500 pump (Fig. 5) is the most sophisticated syringe-type pump. There are two gas solenoid valves, the first of which pressurizes the solvent container to re-fill the chamber and the second actuates a pneumatic valve downstream of the pressure transducer on the column tubing. The operating controls are selected automatically by depressing push-button switches on the front panel of the pump controller. These switches control the opening of the... 

Control System. The operation of the reactor unloading mechanism is electrohydraulically controlled. The power that operates the mechanism is hydraulic. The flows in the hydraulic system are governed by soleiioid-operated valves. The valve solenoids are operated by push-button switches in. the various electrical control circuits. These circuits are interlocked by pressure switches, limit switches, and relays to ensure proper sequence of... 

Emergency Stop A push button, switch, or other control device installed in or on a piece of equipment which is capable of quickly cutting power to that equipment in an emergency. 

Under heading (c), ease of operation, the instrument is designed with only four operating controls which are push-button switches. All that the operator needs to do, external to the recorder, is to ensure that the maximum signal presented does not exceed 10 V and that a suitable time constant is selected. 

The retained transient is then displayed on the upper half of the screen and the current buffer is cleared. A total of 16 transients can be added to the cumulative buffer. Transfer of the contents of the cumulative buffer to main disc storage is achieved through a resident program, and is initiated by the fourth push-button switch. If any transfer difficulties are encountered the information is not erased and is re-presented on the screen after a few seconds delay. 

Operator s control (push-button) station A unitized assembly of one or more externally operable push-button switches, sometimes including other pilot devices. 

Utilization equipment, such as fans, pumps, oil burners, and lighting fixtures on branch circuits, can be controlled by contactors such as push-button switches, toggle or tumbler... 

The push-button switch on the remote reflectance probe was rewired into a foot-switch so that the analyst, whose gloved hands were inside the glovebox manipulating each sample, could initiate a scan most efficiently. Each scan was displayed in real time on the computer s monitor in log(l// ) mode (absorbance vs. wavelength). Some samples were scanned more than once, and absorbances were saved at 2 nm increments (700 data points) in the computer and on a floppy disk. About 20 plastic or rubber samples were analyzed each day. If this number seems low, know that for each sample other people were making written records, audio recordings, and multicamera videotape records for complete documentation of the procedure. 

Adjacent to the above-cited control valves and primary sensors, and at other strategic points, there may be installed in a cabinet or on a chassis, such items as transducers, transmitters, controllers, indicators, push buttons, switches, isolating valves, cable terminal blocks, and so forth, with their associated interconnections, incoming electric and pneumatic power supplies, and connections back to the control room. These need close supervision during installation and a programme of inspection and tests to be defined, implemented and recorded. 

An air pump/motor assembly and solenoid valve in the system were connected to the each end of the air tube embedded in cuff. In addition, a push button switch was used to switch operating mode and a tri-color LED was... 

Push-button switches, rotary encoder and LEDs... 

In car interiors, the main applications are door handles, key lock systems, internal rear mirror, push buttons, switch control panels, steering lock casings, speedometer casings, arm rests, back-lit heater control panels, back light indicators and ashtrays. 

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