pin valve
121Safety tube — Safety chain Safety chain (a) (Railroads) A normally slack chain for preventing excessive movement between a truck and a car body in sluing. (b) An auxiliary watch chain, secured to the clothes, usually out of sight, to prevent stealing of the… …
122Stop — Stop, n. 1. The act of stopping, or the state of being stopped; hindrance of progress or of action; cessation; repression; interruption; check; obstruction. [1913 Webster] It is doubtful . . . whether it contributed anything to the stop of the… …
123Stop bead — Stop Stop, n. 1. The act of stopping, or the state of being stopped; hindrance of progress or of action; cessation; repression; interruption; check; obstruction. [1913 Webster] It is doubtful . . . whether it contributed anything to the stop of… …
124Stop motion — Stop Stop, n. 1. The act of stopping, or the state of being stopped; hindrance of progress or of action; cessation; repression; interruption; check; obstruction. [1913 Webster] It is doubtful . . . whether it contributed anything to the stop of… …
125Stop plank — Stop Stop, n. 1. The act of stopping, or the state of being stopped; hindrance of progress or of action; cessation; repression; interruption; check; obstruction. [1913 Webster] It is doubtful . . . whether it contributed anything to the stop of… …
126Stop watch — Stop Stop, n. 1. The act of stopping, or the state of being stopped; hindrance of progress or of action; cessation; repression; interruption; check; obstruction. [1913 Webster] It is doubtful . . . whether it contributed anything to the stop of… …
127Programmable logic controller — A programmable logic controller (PLC) or programmable controller is a digital computer used for automation of industrial processes, such as control of machinery on factory assembly lines. PLCs are used in many different industries and machines… …
128Rolls-Royce Merlin — Merlin The Rolls Royce Merlin …
