Patent US-1916-1209611
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Projectile, in the air. Mustin, a Navy person, had previously worked on how hydroaeroplanes can brake during a water landing. Brookins was the first Wright exhibition pilot.
Compressed from the patent spec text: This invention relates projectiles fired from large rifled guns of large caliber. It is related to streamlining of projectiles, and intended to increase range and accuracy of guns now in service without having to alter the gun itself. "The projectiles heretofore used in rifled guns have had a flat base which in flight causes a partial vacuum and a turbulent air stream in its rear, adding ... resistance to its forward motion."
- This invention is of a projectile which, after leaving the muzzle of the gun, has a pointed base and a pointed nose. "preferably the largest diameter of the projectile is nearer to the nose than to the base." Thus, streamlined.
- But that shape wouldn't work in existing 1916 guns, and "the pointed base would offer an unsuitable form to the action of the propellent gases."
- Therefore "this invention [has] an automatically detachable base having a flat rear end for the stream line shaped projectile; this base is designed to carry the rotating band for imparting to the projectile the rotation due to the rifling; and means are provided for detaching this base from the projectile immediately after it leaves the muzzle of the gun."
- ==> the projectile has a flat base when its fired, which absorbs the rotation to keep it going straight, and then drops the flat base so that it's streamlined in the air. Like a "shotgun shell" I think.
- Tech class CPC F42B14/064: Sabots enclosing the rear end of a kinetic energy projectile, i.e. having a closed disk shaped obturator base and petals extending forward from said base
- Inventor location: Mustin at Pensacola ; Brookins at Dayton
- Inventor occupation: Mustin: known from other sources to be a Lieutenant Commander in the U. S. Navy
Sources
- Patent 1209611 document and bibliographic info on espacenet
- Patent 1209611 at google patents
| Year filed | 1916 |
|---|---|
| Year granted | 1916 |
| Office | US |
| Patent number | 1209611 |
| Inventors | Henry Croskey Mustin, Walter R. Brookins |
| Inventor country | US |
| Inventor location | Pensacola, FL, Escambia county, FL, Florida, Dayton, Montgomery county, OH, Ohio |
| Applicant person | Henry Croskey Mustin, Walter R. Brookins |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Projectile |
| English title | Projectile |
| Tech fields | Projectile, missile |
| Filing date | 1916-02-29 |
| Full specification filed date | |
| Application number | Ì |
| Grant date | 1916-12-19 |
| Granted? | 1 |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | 1 |
| Serial number | 81217 |
| Patent agent | Wilkinson, Guinta & MacKaye |
| Assigned to | |
| National tech categories | |
| IPCs | |
| CPCs | CPC F42B14/064 |
| Family year | 1916 |
| First filing? | 1 |
| Cites these patents | |
| Citations from after 1930 | 6 |
| Application ID | |
| INPADOC family ID | |
| Number of text pages | 5 |
| Number of diagram pages | 3 |
| Number of figures | 8 |
| Number of claims | 18 |
