US41937A - Improvement in percussion-fuse for explosive shells - Google Patents
Improvement in percussion-fuse for explosive shells Download PDFInfo
- Publication number
- US41937A US41937A US41937DA US41937A US 41937 A US41937 A US 41937A US 41937D A US41937D A US 41937DA US 41937 A US41937 A US 41937A
- Authority
- US
- United States
- Prior art keywords
- fuse
- plunger
- percussion
- improvement
- plug
- 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
- 239000002360 explosive Substances 0.000 title 2
- 238000010276 construction Methods 0.000 description 4
- 230000000875 corresponding Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 206010010254 Concussion Diseases 0.000 description 2
- 210000002445 Nipples Anatomy 0.000 description 2
- 208000002193 Pain Diseases 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- USXDFAGDIOXNML-UHFFFAOYSA-N fulminate Chemical compound [O-][N+]#[C-] USXDFAGDIOXNML-UHFFFAOYSA-N 0.000 description 2
- 239000003721 gunpowder Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
- F42C15/20—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a securing-pin or latch is removed to arm the fuze, e.g. removed from the firing-pin
- F42C15/22—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a securing-pin or latch is removed to arm the fuze, e.g. removed from the firing-pin using centrifugal force
Description
. R. P. PARROTT.
Shell-Fuse;
Patented Mar. 15, 1864.
gvg
III
N-FETERS. FHOTO LITMOGRAPHER WASHINGTON. D C.
UNITED Smarts PATENT @rri'cn,
ROBERT P. PARROTT, OF GOLD SPRING NEXV YORK.
IMPROVEMENT IN PERCUSSlON FUSE FOR EXPLOSll/E SHELLS.
Specification forming part of Letters Patent No.-4lll,937, dated March 15, 1864.
To all whom it may concern:
Be it known that I, ROBERT P. PARROTT, of Cold Spring, in the county of Putnam and State of New York, have invented a new and useful Improvement in Percussion-Fuses for Rifle-Shells; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure l is a side view of a fuse constructed according to my invention Fig. 2 is a central longitudinal section of the same. Fig. 8 is a side view of the cover. Fig. 4 is an inner face view of the same. Fig. 5 is a side view of the plunger capped ready for use. Fig. 6 is a front end view of the same.
Similar letters of reference indicate corresponding parts in the several figures.
To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.
A is the hollow plug, made of zinc or other metal, with a screw-thread on its exterior to screw into the fuse-hole of the shell, and'with holes or notches a a in a flange, 1), provided around its outer end for the reception of a screw-driver, by which to screw it into the fuse-hole. This plug is bored or cored centrally and cylindrically for the reception of the plunger 13, the back part of the bore being made smaller than the front part to form a shoulder, c, for the plunger to rest against.
0 is the cover, having a screw-thread on its exterior to fit a screw-thread in the interior of the front end of the plug, and having holes or notches d d in its outer face for the reception of a screw-driver, by which to screw it into the plug, and recesses c c in its inner face for the reception of the ends of the two columns or prongs f f, provided on the front end of the plunger.
The plunger B may be made of the same metal as the plug, of a size to fit easily to the bore of the latter, and with a shoulder, g, corresponding with the shoulder c. The columns or prongs f f, which are provided on its front end, are parallel with its length and as far from its centeras is permitted by its diameter. The said columns or prongs may be from five-eighths to three-quarters of an inch in length, and of such thickness as to resist any concussion in a longitudinal direction to which they may be subject by the dropping of the shell or by other accident, but to bend or twist off easily in a lateral direction, and the whole length of the plunger, from the shoulder 9 to the ends of the prongs, is such that the prongs may be received loosely in the recesses e e, and the shoulder-g fit loosely to the shoulder 0 without binding when the cover 0 is screwed into its place in the plug. The plun ger is made hollow, and a nipple, z, is screwed into the front end of its central cavity, K, for the reception of a percussion-cap, j. The back portion of the central cavity, K, should be filled with gunpowder to carry the fire from the cap j to the charge of the shell, and plugged at its inner end to confine the powder in place. The plunger and cap are inserted in the plug, while the whole are in an inverted position, and in this way the prongs are kept in the recesses in the cover. After the plunger and cover have been secured in the plug and the latter has been inserted in the shell, the plunger, though remaining loose in the plug, is prevented from being accidentally moved lengthwise to any extent by its prongs, which serve as guards to prevent the cap j from striking against the cap 0; but on the discharge of the shell from a rifled cannon the shell will move forward with a velocity of, say, twelve hundred feet per second at the mouth of the cannon, and by taking in the grooves it will acquire a rotary motion proportioned to this velocity and the degree of twist. The twist in a thirty pounder is generally one turn in twelve feet, giving one hundred revolutions per second. Now, it will be seen that the only way by which this rapidity of rotation can be communicated to the plunger is by the prongs, which, in the eifort to overcome the inertia of the plunger, are twisted off or bent over sidewise, and in this way present little or no resistance to the momentum and impact of the plunger when the shell strikes the obstacle against which it is desired to explode. Thus it will be seen that I keep the guard so long as one is wanted, and remove it on the firing of the gun by employing the rotation of the shell itself for the purpose.
It maybe readily understood that the percussion-cap, or other fulminate primary, or the prongs ff might be attached to the cover or head of the plug instead of to the plunger, and be made to operate in the same manner.
2 use"? \VhatI claim as my invention, and desire to secure by Letters Patent, is
The construction and arrangement of the columns or arms f, substantially in the manner herein shown and described, so that said arms will be longitudinally strong, but laterally weak, and thus, when rapid rotation is imparted to the shell by discharge from the gun the arms will bend or break, but at all other times will remain firm and rigid, as set
Publications (1)
Publication Number | Publication Date |
---|---|
US41937A true US41937A (en) | 1864-03-15 |
Family
ID=2111504
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US41937D Expired - Lifetime US41937A (en) | Improvement in percussion-fuse for explosive shells |
Country Status (1)
Country | Link |
---|---|
US (1) | US41937A (en) |
-
0
- US US41937D patent/US41937A/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2426997A (en) | Projectile | |
US41937A (en) | Improvement in percussion-fuse for explosive shells | |
US90164A (en) | Improved hollow projectile for fire-arms | |
US34685A (en) | Improvement in explosive shells for ordnance | |
US43029A (en) | Improvement in explosive projectiles for ordnance | |
US1311081A (en) | Planograph co | |
US622994A (en) | Shell for high explosives | |
US760820A (en) | Bomb. | |
US1311793A (en) | Planogbaph co | |
US42185A (en) | Improvement in percussion-fuses for shells | |
US400903A (en) | Stephen h | |
US480142A (en) | Projectile | |
US3087429A (en) | Reloadable live ammunition for toy guns | |
US48820A (en) | Improvement in priming metallic cartridges | |
US97693A (en) | Improvement in gun-harpoons | |
US273156A (en) | Xegbert b b | |
US103599A (en) | Improvement in percussion-fuse | |
US66644A (en) | And john j | |
US78673A (en) | Improvement in bomb-lances fob killing whales | |
US1366623A (en) | Grenade or bomb | |
US21278A (en) | Improvement in harpoon-lances | |
US633458A (en) | High-explosive shell. | |
US44546A (en) | Improvement in combined time, percussion, and concussion fuse | |
US674163A (en) | Combination-fuse. | |
US1449245A (en) | High-explosive shell |