US215015A - Improvement in projectiles - Google Patents
Improvement in projectiles Download PDFInfo
- Publication number
- US215015A US215015A US215015DA US215015A US 215015 A US215015 A US 215015A US 215015D A US215015D A US 215015DA US 215015 A US215015 A US 215015A
- Authority
- US
- United States
- Prior art keywords
- projectile
- projectiles
- improvement
- point
- taper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000126 substance Substances 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000001154 acute Effects 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
- F42B10/02—Stabilising arrangements
- F42B10/26—Stabilising arrangements using spin
- F42B10/28—Stabilising arrangements using spin induced by gas action
- F42B10/30—Stabilising arrangements using spin induced by gas action using rocket motor nozzles
Definitions
- the object of my invention is to give the front and rear ends of elongated projectiles the form least resisted by the substances through which they pass in their rapid rotary and lineal motion.
- a similar projection is also extended from the flat or slightly convex base of the projectile. The projectile in its rapid rotary and lineal motion becomes highly magnetic, and these points have important functions for eclectical and gyroscopic purposes.
Description
w/ msssis.
L. A. ME'RRIAM.
' Projectile.
Patented May 6, 1879.
UNIT STATES PATENT OFFICE.
LINCOLN A. MERRIAM, OF NEW YORK, N. Y.
IMPROVEM ENT IN PROJ ECTI LES.
. I Specification forming part of Letters Patent No. 215,015. dated May 6, 1879; application filed October 14, 1878.
To all whom it may concern.-
v of the city, county, and State of New York,
have invented new and useful Improvements in Projectiles for Ordnance and .Small-Arms, of which the following is a specification.
The object of my invention is to give the front and rear ends of elongated projectiles the form least resisted by the substances through which they pass in their rapid rotary and lineal motion.
I taper the front end of my projectile, Figures 1 and 2, making it conform to the vibratory or wave line in which the air and denser substances most readily move in their dis placement, and terminate it in a minute point, the apex of an acute spheroid, a form the front end of the projectile assumes in passing through several feet of wood. A similar projection is also extended from the flat or slightly convex base of the projectile. The projectile in its rapid rotary and lineal motion becomes highly magnetic, and these points have important functions for eclectical and gyroscopic purposes.
When the projectile is constructed with flat spiral sides, in the Well-known manner of the Whitworth, instead of terminating these sides as in that projectile, with a square shoulder where the taper begins at the front end, I carry them spirally forward, as shown at L, on the taper to the base of the axial projection K, making them conform to the wave line in. the displacement of the air, as described above. These spiral sides flow smoothly into the opening-point K, which completes the wave line, the form least resisted in passing through air and other substances, in consequence of the greater smoothness and uniformity of their packing. With this pointing the projectile also takes the grooves of the gun-barrel more readily when the cartridge is inserted in the chamber of the gun.
What I claim is 1. The projectiles described, having the tapering front point described, and the central projection tapering to a point at the rear, having a less base diameter than the base of the bullet, constructed and arranged in the manner and for the uses set forth.
2. The projectile having the flat spiral sides carried spirally forward, as described, on the taper to the axial point of the projectile, in the manner and for the uses described.
LINCOLN A. MERRIAM.
WVitnesses: v
JAMES S. LEEDS, OCTAVE WHITTAKER.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US215015A true US215015A (en) | 1879-05-06 |
Family
ID=2284419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US215015D Expired - Lifetime US215015A (en) | Improvement in projectiles |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US215015A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5325786A (en) * | 1993-08-10 | 1994-07-05 | Petrovich Paul A | Flechette for a shotgun |
| WO1999013287A3 (en) * | 1997-09-09 | 1999-05-14 | Primex Tech Inc | Range limited projectile |
-
0
- US US215015D patent/US215015A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5325786A (en) * | 1993-08-10 | 1994-07-05 | Petrovich Paul A | Flechette for a shotgun |
| WO1999013287A3 (en) * | 1997-09-09 | 1999-05-14 | Primex Tech Inc | Range limited projectile |
| USRE38261E1 (en) | 1997-09-09 | 2003-10-07 | General Dynamic Ordnance and Tactical System, Inc. | Ranged limited projectile using augmented roll damping |
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