US1710271A - Combined detonator and fuse body for percussion or other fuses - Google Patents

Description

April 23, 1,929. L. E. REMONDY COMBINED DETONATOR AWD FUSE BODY FOR PERCUSSION OR OTHER FUSES Filed Feb. 5, 1927 2A a`///v l i* i* Patented YApr.' 23, 1929.

"EVS

. Application filed February 5, 1927, Serial f It Yi'sfknoivn that projectile fuses and n more particularly percussion fuses comprise a ltiring mechanism b'yimeans of which a pery `cussion cap is ired when the operation of f5, the Jfuse' takes place. The flash' from this percussion cap ismade' to send-off the eX- plosive charge of theprojectile only through adetonating relay. This relay is more geni 1o inner end of whichv is lodged a detonating primer. `The detonator arrangement (gaine i, and primer)thus.formed, lconstitutes a Aseparate element whichfis adapted upon the fuse l body 4by screwing; or any other 4suitable means. l

The present inventionhas for its subject a fuse body and detonator combined in such a way ,that the detonator, or more exactly the flod'gedjforins in its entirety or in part an internal 'lining for the Vfuse body, which Vlining, by means of one or more splayed or expanded portions, is hooked on corresponding shoulders on the enclosing body, 'one of 25 these expanded portions at least being hooked orseated Vdirectly upon the part of the fuse body which itself is seatedv on the l ,.projectile.' In practice, .a detonator socket according to the invention will be con*- structed'soias vto* provide, in its upper part, a

4lod'gment for a removable delay holder. ijInthe casewhcn this combined fuse body f sensitivefusewhich operates instantanevwously and beforeany crushing of the fuse body takesplace, this fuse body may be made vof a relatively weakV material such as alumini'um or an aluminium alloy, a plastic materi'al,` eta-the vliningsl'eeve .which carries the detonator alone being made of a strong Y material such assteel or steelcased with copper for example. 'In this case, more particularly, the arrangement formed by the fuse and the detonator could be constructed Vvmuch more easily and more economically than heretofore, an 'economy being effected vboth in. material Yand in machining and .mountinoV y l Various'examples of construction of the ini vention are shown in the accompanying drawing, in which:- -f A 1 Figure l is a longitudinal sectional elevacording to the invention, constructed with a View to the use 1n Vcombination with super sensitivey percussion fuse operating by dr1v .erall formed b f asocket or gaine at the .l

socket in which the detonator charge is` i' K. fanddetonator is employed with a superg tion ot a general arrangement of a fuse ac LON EMILE nMoNDY, or raars, FRANCE.

`j" "COMINED nnreunroa AND rUs'nBonYron rianeirssronon oriana rusas.

No. 166,236, and in France April 23, 1926.

ing in and inertia and in conformity to the I Fig. 3 illustrates another manner of sef.

curing the socket member in the fuse.

Fig. l is a longitudinalsection'of another form of fuse embodying the invention.

ln this figure, A'is a fuse body proper formed for example bycasting, from a material such as aluminium, B is a detonator socket or gaine, that is to say a socket at the bottom of which is lodged and held a detonating 4primer C. The detonating charge C may, in the known manner, be contained in a capsule@1 `(as shown in Fig. l) closed by a Adiaphragm C?, the arrangen'ient C-C2` `keeping the primer perfectly Afluid tight; any displacement of the said capsule is prevented by indentingvthe socket with a punch as at b. As seen from the modification shown in Figure 2, the detonatingcomposition C may be lodged directlyI at the bottom of the socket B, and retained by'a perforated piece C3 made of a light metal, forminga wad and retained by suitable. crimping.

Vits shown in the drawing the gaine or socket' B forms in part an internal lining for the fuse body A. This gaine may be made of a strong rmaterial such as steel or steel cased with copper.

The body A and the socket B are so shaped that the latter is hooked by means `of one or more expanded portions B1, B2 upon corresponding shoulders a, al on the enclosing fuse body A. One of these expanded portions 0, at least is seated directly upon the partei' the luse body which isyitselt seated at a2, uponr the projectile D. The socket B which lines the fuse body internally, may be held in 'place by an lindependent part 'A1 of the fuse body which part isV screwed on A. and serves lodgment or'the mechanism E. The lining socket B may, as shown in Figure l, serve as lodgment, by means of its front part, for a removable delay device F which will. bear upon the lower expanded portion B2 and may itself be held in place by av hollow conical and slightly elastic member Gr gripped by its front base between the securing shoulder B] of the socket and the part A1 of the fuse body vcontaining themechanism. f f

The elasticity may be obtained yby means o3t a series of slots G1 formingY at the sametime duets allowing the gases to pass to-1 soA Wards the delay holder and the gases coming fromthe latter to pass. The member Gr .may as shown in the drawing, be .att-ached ,onto the rpart A of the fuse body-[for instance by setting.v

As ywill seenthe inventionk not ,only makes-it lpossible to obtain an economical construction from the point of VvieWxof/:raw material employed or/ the arrangement'V formed by the mainpartAof the fuse body andthe socketB, the latter only needing-.tol

be made of a strong material fin order to prevent any fracture dueto the effect of' `inertia when the shot' isired; lb'utfin addition, on accountof the-simple andy direct sleeve fit betweenY the detonator carrying socket and the fuse body,VV all 'machining :for

' 'xing thezdetonator inplace isavoided. i

Figure 3 shows, in` sectional elevation, a constructional example ofthe combined fuse body and detonator which vthe nipper splayed part of slioulder'Bl, of the socket; l. is embedded, during manufacture, in thesofter material of thev fuse body y AIt goes Without vsaying .that it is possible,

' instead of embeddingrtlie shoulder rB1` in the softerv material, 't0 embed the Whole of the frontV part therein :the Hash transmitting duct being formedv'in the fuse body YA. 'Ihev lower projecting part ofthe socket, receiv- K'ing .the detbna-ting'primer C may, as shown in Figurev 3, comprlse'a'L chamber forming;

a lodgment forthe' detonating primer C Which'Will 'beheld .in place, Vfor example, by#

means of a tube C3, Vforming .a Wad, between anfelastic bearing WasherC* 4made of felt or other Vsuitable material-anda setting b2, formed at the bottom part of the socket.` In' this case the socket carrying the detonating primer may. be formed directlyY by aframe lodged in the fuse body of weaker material in accordance 'With the invention formingV- 'thesubjectfof the U. S. PatentNo. 1,540,283.

fNaturally, the outlines, internal -andrrex'-y ternal, of the gaine or socketB which contains the detonating primer, may be'varied as desired-to s'u-itthe mode of construction oi" the elements ofthe .fuse,'according Tasto Whether the said fuse isintended to be lemployed With a removable or axed'delay device or in A.combination:with mechanisms other :than theone shtml-n Vway ofy examplefin@theV drawing. f

In the modification shown, in; sectional I elevatlon in v,Figure ,zthe gaineB instead ofjbe'ing,'as shown in Figure l', securedQinY placeby a partQAl' of theuse .bodysorewed K v `upon part'llfisf held in placeby a socket ittedninto A andi-secured guponthefuse Y 1 bodybya pinfH ,which itself'serves for securing inv place the"V carriage E Vcontaining. VVthehring mechanism." e.

Further in' this modification thel narrowed lportion?which, "in the lex-ample".l .Q5

shown in Figure-1, rwas `formed by themember G, is formedv by"` ,the` body 'fof the 'gaine B which is pressed'in-atter the 4primer C hasj been introduced.;

"I claimip. I l.

1. In a fuse, a body having abore thaw' in and a shouldexwifnV4 said bore, 'a socketV member supported onsaid shoulder vand lin! mg said bore, detonatmg means saidl socket member, ak Shoulder insaid socket Vmember, adelayv mechanism having a .t1 on engaging-said, last named `shou means operatively engagingsaid shoulder-'in said *borel kand said delay mechanism Wheresaid socket member between saidfshonlders.

dee-all.

by Vsaid' delaymechan-ism l'i-sjsupportedfin'k i QJIn'a'use, a Ibody havingfabore' there- Vin and -a shoulderninsaidborg--afsocket` y member supported fromv said shoulder,det#V A A onat-i-ng -fmeansyin fsa'id ls oe'laet member, a

Vshoulder in :said-socket member, delay mech-V anism resting againstr said-fleet` named shoulder, and resilient means-interposed benamed shoulder.

tween said delayf-mechan1smland saidY first iff" i Ine-testimony Whereofl khave, signed Ythiay specification.

'L'ON EMILE ,RMoim1f.'Y i Y

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