US3326126A - Explosive container - Google Patents

Explosive container Download PDF

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Publication number
US3326126A
US3326126A US432321A US43232165A US3326126A US 3326126 A US3326126 A US 3326126A US 432321 A US432321 A US 432321A US 43232165 A US43232165 A US 43232165A US 3326126 A US3326126 A US 3326126A
Authority
US
United States
Prior art keywords
container
sections
explosive
sleeve
casing
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
Application number
US432321A
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English (en)
Inventor
Berthmann Adolf
Klunsch Maximilian
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dynamit Nobel AG
Original Assignee
Dynamit Nobel AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dynamit Nobel AG filed Critical Dynamit Nobel AG
Application granted granted Critical
Publication of US3326126A publication Critical patent/US3326126A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/02—Generating seismic energy
    • G01V1/104—Generating seismic energy using explosive charges
    • G01V1/13—Arrangements or disposition of charges to produce a desired pattern in space or time
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/02—Blasting cartridges, i.e. case and explosive adapted to be united into assemblies
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/38—Seismology; Seismic or acoustic prospecting or detecting specially adapted for water-covered areas

Definitions

  • the present invention relates to containers for explosives and more particularly to such explosive containers as are used for seismic measurements at sea.
  • cannister-like containers For carrying out seismic measurements, cannister-like containers have been used heretofore which have a cylindrical or also a quadrangular casing which is closed at the forward and rearward end face thereof by an essentially plane cover and bottom, respectively. Regardless in which position to the moving direction of the boat in which such prior art containers find themselves at any time, they always require a large towing force, which is also the case whenas desiredthey are disposed with the cover in front facing the moving direction, It is also very disadvantageous in connection therewith that the prior art containers have a very strong tendency to carry out during the towing a rolling movement.
  • the purpose of the present invention is to avoid the aforementioned disadvantages and to create favorable conditions for the realization of seismic measurements at sea.
  • an explosive container having a cylindrical, square, or similarly constructed casing, closed at both end faces thereof by means of a cover and a bottom, respectively
  • this is achieved primarily by the present invention in that the container is constructed with an elongated form in a size corresponding to the prevailing requirements and that additionally the cover is also constructed with an outwardly projecting, central curvature extending at least over the largest part of the container cross section and having a shape favorable to streamlining for example, a conical pyramid-like or semi-spherically shaped configuration.
  • the dynamic water pressure acting on the container is considerably reduced by the construction in accordance with the present invention during the towing and the towing force necessary for the towing is considerably reduced correspondingly.
  • a completely satisfactory transmission of the detonation to the measuring apparatus is also assured thereby as the entire explosive quantity is always concentrated into a small coherent space and the ignition thereof can be realized correspondingly by means of a singe ignition device.
  • the primer and/ or ignition device is accommodated in a receiving or accommodating means, preferably, provided centrally at the cover or also at the bottom, which is constructed appropriately as a central sleeve-shaped projecting toward the inside of the container.
  • This recess may be formed into the cover as well as into the bottom or may be constructed also as a separate sleeve, preferably of plastic material, for example, of hard polyethylene, which is inserted into a corresponding aperture of the cover or bottom in a water-tight manner and secured against inadvertent disengagement or falling out.
  • a further significant advantage of the explosive c-ontainer in accordance with the present invention is also the fact that by reason of its favorable streamlined elongated shape, it maintains its position in the water much more readily and better than the heretofore known explosive containers, which is additionally favored if there is provided near the forward and rearward end of the container at the casing thereof a collapsible shackle, lug, drophandle, or the like for the securing of the towing cable or a floating device.
  • a collapsible shackle, lug, drophandle, or the like for the securing of the towing cable or a floating device.
  • further collapsible shackles or drop handles may be provided which serve simultaneously also for the easier handling and transportation of the container.
  • the container according to the present invention is composed of two or more detachably connected sections disposed one behind the other.
  • a simple connection between the sections may be achieved in that the cover and bottom are secured in a fluid-type manner at the casing by means of outwardly projecting, preferably identical folded rims extending along the circumference of the casing and in that a coupling sleeve is installed at the connecting place between two adjacent sections, with the coupling sleeve extending over the ends of the sections along the entire circumference and provided with a bead or corrugation for receiving the folded rims, whereby the coupling sleeve is constructed as slotted ring band, or the like and is adapted to be tightly clamped over the section ends in the circumferential direction by means of lugs arranged at the one end thereof and by means of clamping claws or fingers arranged at the other end thereof and engaging into the lugs.
  • each two adjacent sections there may be provided near the ends thereof an outwardly projecting bulge-shaped portion preferably extending along the entire circumference, whereby again a correspondingly constructed coupling sleeve of complementary shape may serve as connecting element.
  • a band tightly surrounding the same in an axial plane of the explosive container, possibly provided at the towing end with an ear, lug, or the like for the connection of the towing cable, whereby the band is appropriately provided with a conventional clamping mechanism.
  • Another object of the present invention resides in the provision of an explosive container for seismic measurements at sea which is relatively simple in construction, easy to assemble and handle and involves relatively low costs.
  • a further object of the present invention resides in the provision of an explosives container for seismic measurements at sea which considerably reduces the towing force necessary for towing the same through the water while at the same time increasing its stability while in the water under tow.
  • a further object of the present invention resides in the provision of an explosives container which assures an even and uniform detonation of all the containers and therewith an appropriate transmission to the measuring instruments notwithstanding the use of different quantities of explosives.
  • Still another object of the present invention resides in the provision of an explosives container structure for seismic measurements at sea which assures favorable conditions for such measurements, particularly by providing a container having a shape favorable for the dynamic water pressure that occurs during towing.
  • Another object of the present invention resides in the provision of a multi-sectional explosive container that can be readily handled and transported, permits prepacking of the individual section and requires few manipulations to assemble the same into a structure that may vary in the total quantity of explosives used.
  • a still further object of the present invention resides in the provision of a container for explosives for seismic measurements at sea which permits an easy and rapid con- 4- nection between the individual sections while at the same time assuring a good and fluid-tight connection between the sections.
  • Still another object of the present invention resides in the provision of a container for explosives for use in connection with seismic measurements at sea which permits a reduction of the types of section to a single type yet offers great versatility in the explosive charges that can be used.
  • FIGURE 1 is a schematic representation of an explosive container in accordance with the present invention towed through the water by a boat,
  • FIGURE 2 is an elevational view of an explosive container in accordance with the present invention composed of three self-contained and ready-to-use sections,
  • FIGURE 3 is an elevational view, on an enlarged scale, of one section of FIGURE 2,
  • FIGURE 4 is a partial elevational view, on an enlarged scale, of the coupling sleeve according to FIGURE 2, and
  • FIGURE 5 is a perspective view of a modified embodiment of a coupling sleeve in accordance with the present invention.
  • reference numeral 3 designates therein the container, completely filled with explosives and secured by means of a towing cable 2 at the boat 1, which is towed through the water by the boat 1 in the direction of the arrow.
  • the casing 4 of the container 3 is closed off in the illustrated embodiment at the forward end by means of an outwardly curved cover 5 of semi-spherical shape and at the rear end thereof by means of a bottom 6.
  • the container 3 has a relatively great length in relation to its cross section.
  • Collapsible shackles, lugs, or drop-handles 7 are secured near the forward and rearward end of the container 3 or of the casing 4 thereof at the same.
  • the towing cable 2 is connected with the forward one of the two drop-handles 7 and the floating device 9 of conventional construction is secured at the rearward drop-handle 7 by way of a long cable 8 by means of which is assured the horizontal position of the container 3 as well as the depth thereof below the water surface during the towing operation.
  • FIGURE 2 illustrates a container 3 which is composed of three self-contained and ready-to-use sections 3a, 3b, and 30.
  • Each of the sections 301, 3b, and 3c of which one is illustrated on a larger scale in FIGURE 3, is provided with a casing 4 as well as with a cover 5 and a bottom 6.
  • all three sections, that is, the casings 4, the covers 5, and the bottoms 6 thereof have identical dimensions.
  • the covers 5 are each provided with an outwardly projecting central curved portion constructed of truncated conical shape and extending over the largest part of the container cross section while the bottoms 6 are each provided with an inwardly projecting central curved portion constructed of truncated conical shape and also extending over the largest part of the container cross section.
  • the curved portion of a cover 5 and the curved portion of a bottom 6 thereby correspond essentially with each other, i.e., are complementary to one another so that only relatively little water can penetrate between adjacent ends of the sections which is as should be for a completely satisfactory detonation of the explosive container 3.
  • any other contour or curvature of different shape which is hydrodynamically favorable, may be provided with the cover 5 and the bottoms 6.
  • the watertight securing of the covers 5 and of the bottoms 6 at the casings 4 is realized by means of outwardly flanged, identical folded rims 11 and 12 extending over the entire circumference.
  • a sleeve 14 made preferably of plastic material, for example, of hard polyethylene is arranged coaxially to the container axis 13 within the cover 5 of each section for the accommodation of a primer or ignition device (not shown) which in the illustrated embodiment is pressed in watertight and secured against inadvertent falling out.
  • a corresponding recess may also be formed directly into the covers 5.
  • the sleeves 14 or corresponding sleeve-shaped recesses may also be provided instead at or within the bottoms 6.
  • the covers 5 or the bottoms 6 may also be provided with threaded portions which permit a screw-threaded connection of a correspondingly constructed ignition or primer charge.
  • the sleeves 14 are closed against the outside by means of detachable, cap-like closure plugs 15, held in place by a simple press-fit.
  • a primer or ignition device has to be provided only in the cover 5 of the foremost section 3a or in the bottom 6 of the rearmost section 30, the closure plugs 15 found within the area of two adjoining section ends are appropriately left in place in the corresponding sleeves 14 also during towing.
  • the sleeves 14 are made of a soft elastic material, especially of plastic material, for example polyethylene, whereby a good and watertight closure of the sleeves 14 is assured.
  • the good elastic deformability of such a closure plug 15 permits that the latter can be reinserted after the insertion of the primer into the sleeve 14 disposed at the forward or rearward end of the container 3 and that in this manner a good seal of the ignition device against moisture is assured event when the ignition takes place by means of wires and these wires are conducted out of the sleeve 14 between the sleeve wall and the closure plug 15.
  • the sleeves 14 or corresponding sleeve-shaped recesses are of such large dimension that they are capable to receive and accommodate an ignition device sufficiently large for every application, that is for every explosive quantity that may be used.
  • each section there is provided at the casing 4 thereof one bulge-shaped bead or corrugation 15 extending over the entire circumference.
  • Each two adjoining section ends 3a and 3b or 3!) and 3c are held together by means of a coupling sleeve 18 extending over the same and provided with beads 17 for receiving the bulge-shaped beads 16, with the coupling sleeves 18 extending over the entire container circumference.
  • a further, sufficiently wide bead 19 is provided in the center part of the coupling sleeve 18 for receiving the folded rims 11 and 12.
  • the bulgeshaped bead 16 may also be dispensed with and the connection of two sections with each other may be efiectuated by means of the folded rims 11 and 12 in that these rims are held together by a coupling sleeve which is provided only about in the center thereof with a single correspondingly narrow bead or corrugation tightly extending over the folded rims 11 and 12.
  • Additional drop-handles 7 may of course also be provided on the opposite container side, especially if the sections are to be held together, instead of by means of the coupling sleeves 18 or in addition to the latter, by means of a band of iron, steel, or the like disposed in an axial plane of the container and slung about the same whereby the band is then pulled appropriately through the drop-handles 7.
  • a band of iron, steel, or the like disposed in an axial plane of the container and slung about the same whereby the band is then pulled appropriately through the drop-handles 7.
  • each section has only the purpose to obtain sections that may be interchanged at will and are self-contained completely ready to use, which-as can be seen in particular from FIG- URE 3enable also the securing of the towing cable and of a floating device in the event when they are used individually by themselves.
  • the arrangement of two drop-handle 7 which can even be constructed with relatively simple conventional means in a detachable manner-at each section also offers the advantage that each section can be easily handled and transported.
  • sections 3a, 3b, and 30 need not necessarily have the same length and the same cross sectional dimensions.
  • such a construction is particularly appropriate because it permits with adaptation of the dimensions to the smallest explosive quantity to be used, on the one hand, to get along with a single container or single type of section and therewith to constitute the manufacture particularly simple, rational, and inexpensive and, on the other, to assure nevertheless by a connection of a corresponding number of sections the possibility to combine suitably large quantities of explosives into a single explosive container.
  • the coupling sleeve 18 illustrated in part on an enlarged scale in FIGURE 4 which corresponds to that of FIGURE 2, is provided near one of the two ends, disposed closely adjacent one another in the circumferential direction, with a hook 21 between the beads 17 and near the other end thereof with a lug or ear 22 engaging into the hook 2-1 whereby upon tilting of the lever 23, the ends of the sleeve 18 can be pulled together so that the sleeve 18 abuts tightly and rigidly against adjacent ends of the section casings 4.
  • the coupling sleeve 18 illustrated in FIGURE 5 is only provided with a single bead 17 arranged at the center thereof.
  • the two lugs or ears 24 are arranged at one end of the band-shaped coupling sleeve 18 and the two levers 25 with clamping claws 26 are secured at the other end thereof.
  • the latter are already inserted into the lugs 24, however, the levers 25 have not been completely tilted.
  • the levers 25 whichas indicated in dash linesmay be rigidly connected with each other by any conventional means, the ends of the sleeve 18 slide together to such an extent that they form a practically closed ring.
  • the length of the band of the coupling sleeve 1% is, of course, always so dimensioned that the band with closed levers 23 or 25, surrounds tightly about the ends of the casings 4 of adjacent sections and thereby securely holds the same together by means of the bulgeshaped beads and/or the folded rims. Possibly the length of the sleeve band may also be so dimensioned that the ends thereof overlap during tightening.
  • An explosive charge container for seismic measurements at sea comprising a plurality of sections; coupling means detachably connecting said sections in series with each other; each of said sections being an independently serviceable container having a casing, a cover, a bottom and a secondary container means within said casing for receiving a detonator; each of said covers having a substantially identical, streamlined, convex, central curvature extending over the major portion of the cover profile; and each of said bottoms having a substantially identical, concave, central curvature substantially corresponding to the curvature of each of said covers; axially aligned handles rotatably and detachably mounted a substantial distance on each side of the center of each of said casings; means comprising outwardly projecting uniform seams operatively connecting each of said covers and said bottoms in a fluid tight manner with a corresponding casing; said seams encircling the perimeter of the corresponding casing; each of said casings having an outwardly extending bead-shaped ridge, extending around

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Geophysics (AREA)
  • General Engineering & Computer Science (AREA)
  • Oceanography (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Cookers (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Catching Or Destruction (AREA)
  • Window Of Vehicle (AREA)
US432321A 1964-02-15 1965-02-12 Explosive container Expired - Lifetime US3326126A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED0043641 1964-02-15

Publications (1)

Publication Number Publication Date
US3326126A true US3326126A (en) 1967-06-20

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US432321A Expired - Lifetime US3326126A (en) 1964-02-15 1965-02-12 Explosive container

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US (1) US3326126A (is)
BE (1) BE659719A (is)
FR (1) FR1424661A (is)
GB (2) GB1106761A (is)
NL (1) NL6501695A (is)
SE (1) SE309742B (is)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3491104A (en) * 1965-05-28 1970-01-20 Ici Ltd Production of tetrahydrobipyridyls
US3500949A (en) * 1965-08-02 1970-03-17 Ici Ltd Marine seismographic prospecting
US3509820A (en) * 1967-10-09 1970-05-05 Hercules Inc Seismic charge assembly,seismic charge primer,and method and system exploration
US4015526A (en) * 1974-04-10 1977-04-05 Imperial Chemical Industries Limited Explosive charge
EP0137713A2 (en) * 1983-09-09 1985-04-17 Royal Ordnance plc Modular ground mine
US6092659A (en) * 1996-06-18 2000-07-25 Gateway 2000, Inc. Restricted orientation shipping carton

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US411130A (en) * 1889-09-17 Territory
US544943A (en) * 1895-08-20 Pipe-joint cover
US1840479A (en) * 1929-03-20 1932-01-12 Petits Fils Francois Wendel Blasting cartridge
US2401140A (en) * 1940-04-24 1946-05-28 Hercules Powder Co Ltd Explosive cartridge assembly
US2488611A (en) * 1945-07-09 1949-11-22 Randall L Stallings Insulated bottle assembly
US2641374A (en) * 1949-10-29 1953-06-09 Yee Sing Chun Container
US2919017A (en) * 1957-10-31 1959-12-29 Franklin H Weber Telescopic carrying case
CH344357A (fr) * 1958-06-03 1960-01-31 D Emballages Metalliques Socie Cartouche explosive
US3001564A (en) * 1959-05-13 1961-09-26 David M Hopkins Quick-detachable multi-container assembly
US3013492A (en) * 1959-01-21 1961-12-19 Sexton Can Co Inc Explosive cartridge
US3059575A (en) * 1957-08-19 1962-10-23 Trojan Powder Co Seismographic exploration
GB930490A (en) * 1961-06-15 1963-07-03 Wasagchemie Ag Explosive cartridge for seismic measurements, particularly for use as a seismic charge in oceanographic surveying

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US411130A (en) * 1889-09-17 Territory
US544943A (en) * 1895-08-20 Pipe-joint cover
US1840479A (en) * 1929-03-20 1932-01-12 Petits Fils Francois Wendel Blasting cartridge
US2401140A (en) * 1940-04-24 1946-05-28 Hercules Powder Co Ltd Explosive cartridge assembly
US2488611A (en) * 1945-07-09 1949-11-22 Randall L Stallings Insulated bottle assembly
US2641374A (en) * 1949-10-29 1953-06-09 Yee Sing Chun Container
US3059575A (en) * 1957-08-19 1962-10-23 Trojan Powder Co Seismographic exploration
US2919017A (en) * 1957-10-31 1959-12-29 Franklin H Weber Telescopic carrying case
CH344357A (fr) * 1958-06-03 1960-01-31 D Emballages Metalliques Socie Cartouche explosive
US3013492A (en) * 1959-01-21 1961-12-19 Sexton Can Co Inc Explosive cartridge
US3001564A (en) * 1959-05-13 1961-09-26 David M Hopkins Quick-detachable multi-container assembly
GB930490A (en) * 1961-06-15 1963-07-03 Wasagchemie Ag Explosive cartridge for seismic measurements, particularly for use as a seismic charge in oceanographic surveying

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3491104A (en) * 1965-05-28 1970-01-20 Ici Ltd Production of tetrahydrobipyridyls
US3500949A (en) * 1965-08-02 1970-03-17 Ici Ltd Marine seismographic prospecting
US3509820A (en) * 1967-10-09 1970-05-05 Hercules Inc Seismic charge assembly,seismic charge primer,and method and system exploration
US4015526A (en) * 1974-04-10 1977-04-05 Imperial Chemical Industries Limited Explosive charge
EP0137713A2 (en) * 1983-09-09 1985-04-17 Royal Ordnance plc Modular ground mine
EP0137713A3 (en) * 1983-09-09 1985-06-05 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Modular ground mine
US6092659A (en) * 1996-06-18 2000-07-25 Gateway 2000, Inc. Restricted orientation shipping carton

Also Published As

Publication number Publication date
FR1424661A (fr) 1966-01-14
GB1106761A (en) 1968-03-20
GB1106762A (en) 1968-03-20
SE309742B (is) 1969-03-31
BE659719A (is) 1965-05-28
NL6501695A (is) 1965-08-16

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