US757165A

US757165A - Percussion-fuse for exploding shells.

Info

Publication number: US757165A
Application number: US10534902A
Authority: US
Inventors: Karl Wieser
Original assignee: Fried Krupp AG
Current assignee: Fried Krupp AG
Priority date: 1902-04-30
Filing date: 1902-04-30
Publication date: 1904-04-12
Anticipated expiration: 1921-04-12

Description

PATENTBD APR. 12, 1904. K. WIESER. PERCUSSION FUSE FOR EXPLODING SHBLLS.

APPLIoATIoN FILED APB. 3o. 1902.

No MODEL.

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UNITED STATES PERCUSSIN-FUS FO-F` EXPL'O'iDINGr SHELLiS.;

SPECIFICATION refining para ef Letters recent No. 757,165', aerea par Application sled April so, V1902.

To all whom it may concern.-

Be it known that I, KARL 1Nissen, a subject of the Emperor of Germany, and a resident of 34'Friederiken'strasse, Riittenscheid, near Esl sen-on-the-Ruhr, Germany, have invented certain newv and useful Improvements in Percussion-Fuses for Exploding Shells, of which the following is a specification.

Percussion-fuses have heretofore been) provided with an arrangement for so regulating 'the detonation of the exploding charge that it follows the ignition ofthe fuse with or with out delay-that is to say, either at the instant the 'projectile reaches the target or with a sufficient retardation to insure the explosion taking place after the projectile has penetrated the target. The adjustment of the percussionfuse corresponding to .these two results may be designated for convenience as the impact position or the delay position.

The present invention constitutes a new embodiment of percussion-fuse for attaining the aforesaid object, which provides for a rapid and easy changing of the condition of the fuse from delay to impact, and vice versa, by arranging a cock in a channel which forms direct or immediate communication between the igniting-'chamber of the percussion-fuse and the bursting charge of the shell, through the medium of which cock the channel may be opened or closed. 1

The accompanying drawings, forming part of this specification, show an embodiment of the invention by way of illustration in its two positions or conditions of use.

Figure l is a vertical section through the axis of the fuse and the axis of the cock-spindle with 'the channel opened; Fig. 2, a corresponding section with the channel closed; Fig. 3, a pla-n View corresponding to Fig. l, and

Fig. 4 a plan view corresponding to Fig. 2.

Percussion-fuses heretofore made have emplyed' a needle-bolt A, check-ring B, and the safety-spring C, arranged immediately in a bore of the fuse-body F, and the igniting-pellet D, resting in a screw-cap which closes the bore, while from the igniting-chamber of the percussion-fuse two diiferent passages lead toward the interior of the shell. One of these Patented April lsu y1904:.

A'KARL Winsen, or RTTnNscHEIn, NEAR EssizNloNrHnnuH enniif i AssIeNoR' To riuso. KRUPP, or Es'snicoN-rnn-nun a vR AN.

seein Ne. 105,349. No modus passages is formed 'by an bliqu'e chau 'extending from the ignitirig'ichamberand..` er minating'in a longitudinaichanneliS,frnnnirrg parallel to the axis of the fuse,"'"extending-fors..l Ward tothe head of thefuse-fbbdy; and' rece e. ing at its base a-portion K off rapidly-.burning is filled with a longitudinallyandrtrausyersely bored charge'M of rapidlyfbunningl powder and closed by a screw-plug Le. provided with 'a longitudinal bore O.- Thesecondlconnecr burning powder and dischargesfinto the bore T. If the channelR iS OPQIlellheash .,Offll l fuse pellet communicates`1l`r the rapidlyburning powder K, thence` tol'lthe ,rapidlyf burning charge M, and then toth te,V l o4 the shell, and detonationS of -the charge takes place instantly upon impactf If, however, the oblique channel R is closed, the flash from the fuse-pellet only ignites the slowburning charge N and is communicated from it lio the rapidly-burning charge M less rapidlty, so that the last-named charge M detonates the bursting charge only after the elapsc of suicient time to permit penetration to have taken place.

According to the present invention the device for cutting ofi" the channel R, which forms the immediate communication between the igniting-chamber of the,percussionfuse and the bursting charge, consists of a cock V, which at the height of the opening of channel R into channel S has a bore E, which leads into the longitudinal bore G. The latter terminates above the charge of rapidly-burning powder at the base of the channel S. The cock V carries on its upper end a spring-arm H, for which two recesses J' J2 are provided in the fuse-head.

In the position df use illustrated in Figs. l and 3 the cock V is in the position in which its spring-arm H rests in the recess J and its bores E G establish communication with the open channel R. In consequence when the 55 powder, which reinforcesthe'liashnoffthe ige) "Hf-- fto igniting-needle pricks the igniting-pellet in the well-known manner upon the impact of the projectile the tire-Hash proceeds Without delay through the bore of the needle-bolt and through the channels R, E, G, S, T, and O to the bursting charge, so that the shell explodes at the instant of its impact.

If the ignition is to follow with delay, the arm H of the cock is released by hand from the .rest J and moved in the direction of the arrow Fig. 3, until it springs into the recess J, Fig. 4. The cock V then takes the position shown in Fig. 2. In this position of the cock the channel R is closed ofi' fromV the channel S, so that the ignition of the bursting chargecan take place only after the combustion of the retarding-charge N, contained in the channel U.

Having thus described the said invention,

the following is what is claimed as new there-A 1. In a percussion-fuse, the combination with a fuse-stock, and a non-rotatable primer, of two passages communicating ignition to the bursting charge, a delay-action device in one of said passages, and manually-operated means rotatable independently of the primer to one position to open the other passage and"u to another position to close it.

2. In a percussion-fuse, the combination with a'fuse-stock, and a non-rotatable primer, of two passages communicating ignition to the bursting charge, a delay-action device in one of 'said' passages, a cock turning independently of primer in the other passage and movable to one position to open said passage, and to another position to close said passage.

3. In a percussion -fuse, the combination with a fuse-stock, and a non-rotatable primer of two passages communicating ignition to the bursting charge, a delay-action device in' one oi' said passages, a cock turning independently of primer in the other passage and movable to one position to open said passage, and to another position tol close said passage, and means for ixin g the cock in its respective po sitions. f

4:. In a percussion-fuse of substantially the character herein described, having two passages communicating ignition a delay-action device in one of said passages, a cock turning in and arranged to open and close the other passage, a spring-arm on said cock, and means engaging the spring-arm in the opened and closed positions of the cock.

5. In a percussion-fuse of substantially the character herein described, having two passages communicating ignition, `a delay-action device in one of said passages, a cock turning in and arranged to open and close the other passage, a spring-arm on the free e'id oi' the cock, and recesses J J, in the fuse, ini o which the spring-arm enters at the respective `ends of the cocks turning movement.

rIhe foregoing specification signed at Dusseldorf this 17th day of April, 1902.

KARL IVIESER. In presence of-- PETER LIEBER, WViLLIAu EssENWEIN.