AIR CRAFT SPARK PLUG TWIST A GAP, AND SPREADER
It Is a industrial and aircraft, non-shielded or shielded automatic spark plug gapper and spreader. For the use of two prong or four prong spark plugs with vertical center e!ectrodes nauraTgL VlîlX ™- i" -riou. enginen It is a hand held device, simply by twistinq effort th*. srdesfrel.09" ** 0r Spreïd to * r plugapf 2ft HOW TO USE Step 1. Have spark plug in left hand and Gap-o-matic <TM) in right hand. Step 2- Choose desired center barrel or gap size. Step 3. Slide into main barrel. Now you are ready to use tool. Step 4. Slide center barrel over center electrode squarely. Step 5. Turn outside hand barrel over threads of spark plug until seated, continue to turn until resistance is felt. Step 6. Unscrew. Plug is set. The same procedure is used for spreading gap. The embodiments of the invention in which an exclusive property or privilege is claimed. FORM 24 (ss. 21,31,34 and 142) In a tool for adjusting aircraft shielded or non-shielded, four prong or two prong plug, that is used in gas field compressor engines. It has been known to use pliers and feeler gauges and wire gauges to set spark plug gaps for new or used plugs. However, in this invention, we simply screw on a hand nut which centers over the vertical center electrodes, at the same time a tapered bevel surrounds the outside electrodes, 4 or 2 of them, squeezing the outer electrode toward the center. With different sizes of center barrel this tool can set spark plugs accurately Things that are new We do not need to use a wire gauge or individually bend outer electrodes. Unit can be used on most spark plugs simply by cutting away a portion of the barrel and inserting a spacer.
By simply threading or clamping the tool to spark plug and rotating the tool or spark plug against the tapered seat which pushes the outer electrode against the center barrel evenly. This sets the gap, hence the name Twist-o-matic or Gap-o-matlc. 1. Twisting the tool over the spark plug. 2. Different size of center barrel 3. The taper in the center barrel pushes electrodes down. 4. Hand held tool. 5. Centers the electrodes. 6. Sets outer electrodes at the same time. 7. Gaps Type H and Type N shielded and non-shielded spark plugs. 8. Protects spark plug end when dropped or in storage. 9. Spreads spark plug gap for larger gap requirements. 10. Can be used to set other plugs (automotive) by simple alteration.