Definitions for touch hole
touch hole

WiktionaryRate this definition:0.0 / 0 votes

1. touch holenoun

   A small hole through which the propellant charge of a cannon or muzzleloading gun is ignited

Samuel Johnson's DictionaryRate this definition:0.0 / 0 votes

1. Touch-holenoun

   The hole through which the fire is conveyed to the powder in the gun.

   Etymology: touch and hole.

   In a piece of ordnance, if you speak in the touch-hole, and another lay his ear to the mouth of the piece, the sound is far better heard than in the open air. Francis Bacon, Nat. Hist.

WikipediaRate this definition:0.0 / 0 votes

1. Touch hole

   A touch hole, also called a vent, is a small hole at the rear (breech) portion of the barrel of a muzzleloading gun or cannon. The hole provides external access of an ignition spark into the breech chamber of the barrel (where the combustion of the propellant occurs), either with a slow match (matchlock), a linstock or a flash pan ignited by some type of pyrite- (wheellock) or flint-based gunlock (snaplock, snaphaunce and flintlock), which will initiate the combustion of the main gunpowder charge. Without touch hole, it would be nearly impossible to ignite the powder because the only otherwise access into the barrel is from the front via the muzzle, which is obturated by the projectile. In the later caplock firearms, the ignition sparks are generated by a shock-sensitive percussion cap placed over a conical "nipple", which has a hollow conduit known as the flash channel, that leads into the barrel and serves the same function as the touch hole. In modern breechloading firearms, the propellant charge is packaged inside a cartridge, which has a modified percussion cap (primer) seated in a cavity at the back end of the cartridge case. Between the primer pocket and the case chamber are one or more apertures known as flash holes, which serves functionally as a touch hole inside the cartridge. In artillery, priming powder, a fuse, squib, or friction igniter is inserted into the touch hole to ensure ignition of the charge. The ignition might be achieved via striking or electrically.

WikidataRate this definition:0.0 / 0 votes

1. Touch hole

   A touch hole is a small hole through which the propellant charge of a cannon or muzzleloading gun is ignited. In small arms, the flash from a charge of priming held in the flash pan is enough to ignite the charge within. In artillery, priming powder, a fuse, squib, or friction igniter is inserted into the touch hole to ensure ignition of the charge. The powder in the touch hole was lit either with a slow match, a linstock or a type of Flintlock mechanism that was known as a gunlock.

How to pronounce touch hole?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say touch hole in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of touch hole in Chaldean Numerology is: 9

2. Pythagorean Numerology

   The numerical value of touch hole in Pythagorean Numerology is: 8

References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Touch_Hole
2. ^ Samuel Johnson's Dictionary
   https://johnsonsdictionaryonline.com/views/search.php?term=touch hole
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Touch_Hole
4. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=touch hole