NO149306B - LIQUID CONSTRUCTION - Google Patents
LIQUID CONSTRUCTION Download PDFInfo
- Publication number
- NO149306B NO149306B NO782611A NO782611A NO149306B NO 149306 B NO149306 B NO 149306B NO 782611 A NO782611 A NO 782611A NO 782611 A NO782611 A NO 782611A NO 149306 B NO149306 B NO 149306B
- Authority
- NO
- Norway
- Prior art keywords
- charge
- tags
- tail
- nozzle
- grenade
- Prior art date
Links
- 238000010276 construction Methods 0.000 title abstract 2
- 239000007788 liquid Substances 0.000 title 1
- 239000003721 gunpowder Substances 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 7
- 239000003380 propellant Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000000567 combustion gas Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229920002160 Celluloid Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B35/4413—Floating drilling platforms, e.g. carrying water-oil separating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
- B63B1/04—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull
- B63B1/047—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull with spherical hull or hull in the shape of a vertical ring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
- B63B1/04—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull
- B63B2001/044—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull with a small waterline area compared to total displacement, e.g. of semi-submersible type
Landscapes
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Fluid Mechanics (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Bridges Or Land Bridges (AREA)
- Earth Drilling (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Cleaning Or Clearing Of The Surface Of Open Water (AREA)
- Floor Finish (AREA)
Abstract
Flytende konstruksjon.Floating construction.
Description
Geværgranat. Rifle grenade.
Det er allerede kjent geværgranater forsynt med en ladning for egen fremdrift som ved reaksjonsvirkning bibringer granatene en tilleggshastighet utover den be-gynnelseshastighet de får ved utskytning med en patron uten kule. There are already known rifle grenades equipped with a charge for self-propulsion which, by reaction, gives the grenades an additional velocity beyond the initial velocity they get when fired with a cartridge without a bullet.
Foreliggende oppfinnelse tar sikte på å skaffe forskjellige forbedringer ved am-munisjon av denne type. Oppfinnelsen an-går en geværgranat forsynt med en hjelpe-fremdriftsladning bestående av en kruttladning og omfattende blant annet en med styrefinne utstyrt rørformet hale som innvendig er delt opp i to rom ved hjelp av en innsnevret del, hvori er innsatt en dyseholderblokk forsynt med radiale utfresninger som mellom seg avgrenser tagger, og utmerker seg ved at en tennladning er anbragt mellom taggene, idet en øvre membran dekker over taggene og at kruttladningen hviler mot denne membran. The present invention aims to provide various improvements in ammunition of this type. The invention relates to a rifle grenade provided with an auxiliary propellant charge consisting of a gunpowder charge and comprising, among other things, a tubular tail equipped with a guide fin which is internally divided into two compartments by means of a narrowed part, into which a nozzle holder block provided with radial millings is inserted which between them delimits spikes, and is distinguished by the fact that an ignition charge is placed between the spikes, with an upper membrane covering the spikes and that the gunpowder charge rests against this membrane.
De selvdrevne geværgranater som tid-ligere har vært foreslått omfatter i al-minnelighet en konvensjonell dyse hvis profil består av et konvergerende parti og et divergerende parti, og har som formål å øke reaksjonsytelsen. Imidlertid viser erfar-ingene at en slik dyse på grunn av de prak-tiske vanskeligheter som en nøyaktig serie-produksjon og en grundig aksial sentrering inne i den finnebærende hale medfører, forårsaker en spredningsvirkning ved ut-skytningen av granatene hvori dysen er anordnet. The self-propelled rifle grenades that have previously been proposed generally comprise a conventional nozzle whose profile consists of a converging part and a diverging part, and whose purpose is to increase reaction performance. However, experience shows that such a nozzle, due to the practical difficulties that an accurate series production and a thorough axial centering inside the fin-bearing tail entails, causes a scattering effect when the shells in which the nozzle is arranged are fired.
For å eliminere denne ulempe er det mulig, etter at dyseholder-blokken er satt To eliminate this disadvantage, it is possible, after the nozzle holder block is set
på plass, å bevirke en sluttbearbeidelse av dysen ved å anvende granatens hale til å styre det dertil bestemte verktøy, slik at dysens akse kan bringes til å falle full-stendig sammen med aksen for nevnte hale. Dessuten er det enklere og raskere å kon-trollere konsentrisiteten av to sylindriske deler enn konsentrisiteten av en konisk, divergerende overflate og en rørformet hale. in place, to effect a final processing of the nozzle by using the tail of the grenade to control the tool designated for that purpose, so that the axis of the nozzle can be brought to coincide completely with the axis of said tail. Moreover, it is easier and faster to control the concentricity of two cylindrical parts than the concentricity of a conical, diverging surface and a tubular tail.
Fordi det fremre rom, som gir plass for hjelpefremdriftsladningen og det bakre rem som styrer granaten på utskytnings-muffen, består av et eneste stykke, oppnås forøvrig en perfekt innretning av den ene i forhold til den annen. Således reduseres virkningen av eksentrisk rotasjon som all-tid er skadelig ved presisjonsskyting av geværgranater. Because the front compartment, which provides space for the auxiliary propelling charge and the rear strap which guides the grenade onto the launch sleeve, consists of a single piece, a perfect arrangement of one in relation to the other is otherwise achieved. Thus, the effect of eccentric rotation, which is always harmful in precision shooting of rifle grenades, is reduced.
Dyseholderblokken omfatter fortrinns-vis en rekke radielle utfresninger som avgrenser taggene mellom hvilke der er anbragt en pulverformet tennladning. The nozzle holder block preferably comprises a series of radial millings which delimit the tags between which a powdered ignition charge is placed.
Videre er der ifølge oppfinnelsen et periferisk rom mellom den ytre flate av nevnte tagger og den indre haleoverflate, hvilket letter og jevnt fordeler utstrømnin-gen av forbrenningsgassene. Furthermore, according to the invention, there is a peripheral space between the outer surface of said tags and the inner tail surface, which facilitates and evenly distributes the outflow of the combustion gases.
Andre fordeler og spesielle trekk ved oppfinnelsen vil fremgå av følgende be-skrivelse under henvisning til tegningen som bare er gitt som eksempel, og hvor fig. Other advantages and special features of the invention will be apparent from the following description with reference to the drawing which is only given as an example, and where fig.
1 fremstiller et delvis aksesnitt av det bakre 1 shows a partial axial section of the rear
parti av en geværgranat, fig. 2 viser dyseholderblokken sett ovenfra, fig. 3 viser den samme detalj som fig. 2 sett fra siden og part of a rifle grenade, fig. 2 shows the nozzle holder block seen from above, fig. 3 shows the same detail as fig. 2 side views and
delvis i snitt og fig. 4 viser kruttladningen sett nedenfra på fig. 1. partly in section and fig. 4 shows the gunpowder charge seen from below in fig. 1.
Som vist på fig. 1 omfatter det bakre parti av granaten 1 en bunndel 2, hvis åpning 3 er lukket med en overgang 4 gjen-get i begge ender 5 og 6. As shown in fig. 1, the rear part of the grenade 1 comprises a bottom part 2, the opening 3 of which is closed with a transition 4 threaded at both ends 5 and 6.
En sylindrisk og rørformet hale 7, som er skrudd på den 'gjengede ende 6 a<y >nevnte overgang, er bakerst utstyrt med eii styreanordning av et plastmateriale, bestående av en serie finner 8 innbyrdes for-bundet med en ring 9. A cylindrical and tubular tail 7, which is screwed onto the threaded end 6 a<y >mentioned transition, is equipped at the back with a control device made of a plastic material, consisting of a series of fins 8 interconnected with a ring 9.
Halen 7, som er utført i ett stykke i en resistent aluminiumlegering, er innvendig oppdelt i to rom ved hjelp av en innsnevret del 10 plasert omtrent midt på halen. En ringformet understøttelse, som står lodd-rett på aksen for halen 7, avslutter på for-siden det innsnevrede parti 10. Det forreste rom 11 inneholder en kruttladning. 12 som sett fra enden er vist på fig. 4. Den er generelt rørformet og rillet på utsiden ved 13. På innsiden har den en sylindrisk kanal 14, slik at den totale overflate forblir til-nærmet konstant under forbrenningen av ladningen. The tail 7, which is made in one piece of a resistant aluminum alloy, is internally divided into two compartments by means of a narrowed part 10 placed approximately in the middle of the tail. An annular support, which is perpendicular to the axis of the tail 7, terminates the narrowed part 10 on the front side. The front compartment 11 contains a gunpowder charge. 12 as seen from the end is shown in fig. 4. It is generally tubular and grooved on the outside at 13. On the inside it has a cylindrical channel 14, so that the total surface area remains approximately constant during the combustion of the charge.
En dyseholderblokk 15 av stål, hvis ytre sylindriske overflate over den største del av høyden oppviser en diameter lik den innvendige diameter av innsnevringen 10, er presset inn i nevnte innsnevring. Den aksiale åpning 16 i dyseholderen med konstant diameter over' hele høyden utgjør dysen for drivladningen 12. Ved 17 på fig. 3 er blokken 15 utstyrt med et ringformet skulderstykke 18 som støter an mot det tilsvarende, skulderstykke 10a på innsnevringen 10, fig. 1. A nozzle holder block 15 of steel, whose outer cylindrical surface over the largest part of the height exhibits a diameter equal to the internal diameter of the constriction 10, is pressed into said constriction. The axial opening 16 in the nozzle holder with a constant diameter over the entire height constitutes the nozzle for the propellant charge 12. At 17 in fig. 3, the block 15 is equipped with an annular shoulder piece 18 which abuts against the corresponding shoulder piece 10a on the constriction 10, fig. 1.
En rekke radielle utfresninger 19 ut-ført på det øvre ,parti av dyseholder-blokken 15 avgrenser en rekke tilsvarende tagger 20 som gir støtte for kruttladningen. 12 og tillater passasje av forbrenningsgassene, hvilke ledes gjennom de nevnte utfresninger mot hylsen 16. Én tennladning 21 (svartkrutt) holdes mellom to membraner, 22 og 23 fremstilt av et brennbart materiaie, f. eks. av celluloid. Den øvre membran 22 dekker taggene 20 inntil nivået for skulder-stykket 18, mens den nedre membran 23 stenger åpningen i dysen 16. Et ringformet rom 24 er anordnet mellom den ytre flate av taggene 20 og den indre overflate av rommet 11 for å lette passasjen for forbrenningsgassene. <:> Det bakre rom 25 av halen 7 er bestemt til å festes enten på et geværløp eller på en utskytningsmuffe festet ytterst på et geværløp. A series of radial millings 19 carried out on the upper part of the nozzle holder block 15 delimit a series of corresponding tags 20 which provide support for the gunpowder charge. 12 and allows passage of the combustion gases, which are led through the aforementioned cutouts towards the sleeve 16. One ignition charge 21 (black powder) is held between two membranes, 22 and 23 made of a combustible material, e.g. of celluloid. The upper membrane 22 covers the tags 20 up to the level of the shoulder piece 18, while the lower membrane 23 closes the opening in the nozzle 16. An annular space 24 is arranged between the outer surface of the tags 20 and the inner surface of the space 11 to facilitate passage for the combustion gases. <:> The rear compartment 25 of the tail 7 is intended to be attached either to a gun barrel or to a launch sleeve attached to the end of a gun barrel.
Idet skuddet avfyres, drives granaten frem ved støt fra en patron uten kule plasert i kammeret i nevnte gevær. Patronen antenner tennladningen 21, som på sin side formidler ilden over hele overflaten av kruttladningen 12, hvis gasser som unnslip-per gjennom dysen 16, gir granaten en tilleggshastighet i tillegg til den hastighet granaten allerede har. When the shot is fired, the grenade is propelled by the impact of a cartridge without a bullet placed in the chamber of the said rifle. The cartridge ignites the incendiary charge 21, which in turn spreads the fire over the entire surface of the powder charge 12, whose gases escaping through the nozzle 16 give the grenade an additional velocity in addition to the velocity the grenade already has.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/820,461 US4170954A (en) | 1975-06-27 | 1977-08-01 | Semi-submersible vessel |
Publications (3)
Publication Number | Publication Date |
---|---|
NO782611L NO782611L (en) | 1979-02-02 |
NO149306B true NO149306B (en) | 1983-12-19 |
NO149306C NO149306C (en) | 1984-03-28 |
Family
ID=25230824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO782611A NO149306C (en) | 1977-08-01 | 1978-07-31 | LIQUID CONSTRUCTION |
Country Status (12)
Country | Link |
---|---|
JP (1) | JPS5440493A (en) |
AU (1) | AU530209B2 (en) |
CA (1) | CA1124584A (en) |
DE (1) | DE2831104A1 (en) |
ES (1) | ES472244A2 (en) |
FI (1) | FI782365A (en) |
FR (1) | FR2399356A2 (en) |
GB (1) | GB2001587B (en) |
IT (1) | IT1108830B (en) |
NL (1) | NL7808032A (en) |
NO (1) | NO149306C (en) |
SE (1) | SE438647B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU569028B2 (en) * | 1982-03-12 | 1988-01-21 | John Arthur Graham | Rotatable platforms |
JPH0340718Y2 (en) * | 1985-11-29 | 1991-08-27 | ||
GB2185446B (en) * | 1986-01-17 | 1989-10-25 | Shell Int Research | Semi-submersible vessel |
GB8723172D0 (en) * | 1987-10-02 | 1987-11-04 | Seaways Eng Uk Ltd | Floating production system for undersea oil well |
ID21673A (en) * | 1996-12-31 | 1999-07-08 | Shell Internationale Res Maatc | POLE WITH VERTICAL FLOW |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1295404B (en) * | 1965-08-22 | 1969-05-14 | Motora Seizo | Floats |
NL6712041A (en) * | 1967-09-01 | 1969-03-04 | ||
US3487484A (en) * | 1967-09-05 | 1970-01-06 | Sanders Associates Inc | Tuned floating bodies |
US3572043A (en) * | 1969-02-24 | 1971-03-23 | Ernest A Clara | Underwater structure |
US3592155A (en) * | 1969-04-24 | 1971-07-13 | Edgar N Rosenberg | Floating platform |
US4010704A (en) * | 1973-08-10 | 1977-03-08 | Energy Systems Corporation | Buoyant sphere |
FR2324505A1 (en) * | 1975-06-27 | 1977-04-15 | Rinaldi Victor | SEMI-SUBMERSIBLE VESSEL WITH SPATIAL STRUCTURE |
FR2354238A2 (en) * | 1976-06-10 | 1978-01-06 | Rinaldi Victor | Semi-submersible vessel for oil drilling operations - constructed partly in annular and spherical form supporting an operating platform |
-
1978
- 1978-07-14 DE DE19782831104 patent/DE2831104A1/en not_active Withdrawn
- 1978-07-18 FR FR7821304A patent/FR2399356A2/en active Granted
- 1978-07-25 CA CA308,108A patent/CA1124584A/en not_active Expired
- 1978-07-28 NL NL787808032A patent/NL7808032A/en not_active Application Discontinuation
- 1978-07-31 IT IT26301/78A patent/IT1108830B/en active
- 1978-07-31 AU AU38481/78A patent/AU530209B2/en not_active Expired
- 1978-07-31 NO NO782611A patent/NO149306C/en unknown
- 1978-07-31 FI FI782365A patent/FI782365A/en not_active Application Discontinuation
- 1978-07-31 JP JP9352978A patent/JPS5440493A/en active Pending
- 1978-07-31 SE SE7808270A patent/SE438647B/en unknown
- 1978-07-31 ES ES472244A patent/ES472244A2/en not_active Expired
- 1978-08-01 GB GB787831900A patent/GB2001587B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
SE438647B (en) | 1985-04-29 |
DE2831104A1 (en) | 1979-02-15 |
SE7808270L (en) | 1979-02-02 |
GB2001587A (en) | 1979-02-07 |
JPS5440493A (en) | 1979-03-29 |
IT7826301A0 (en) | 1978-07-31 |
FI782365A (en) | 1979-02-02 |
AU3848178A (en) | 1980-02-07 |
AU530209B2 (en) | 1983-07-07 |
NO782611L (en) | 1979-02-02 |
CA1124584A (en) | 1982-06-01 |
IT1108830B (en) | 1985-12-09 |
FR2399356A2 (en) | 1979-03-02 |
NO149306C (en) | 1984-03-28 |
GB2001587B (en) | 1982-10-20 |
FR2399356B2 (en) | 1982-06-18 |
ES472244A2 (en) | 1979-12-01 |
NL7808032A (en) | 1979-02-05 |
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