US573897A - Frederik mohr - Google Patents
Frederik mohr Download PDFInfo
- Publication number
- US573897A US573897A US573897DA US573897A US 573897 A US573897 A US 573897A US 573897D A US573897D A US 573897DA US 573897 A US573897 A US 573897A
- Authority
- US
- United States
- Prior art keywords
- frederik
- igniting
- mohr
- plug
- cartridge
- 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
- 230000000576 supplementary Effects 0.000 description 10
- 239000007789 gas Substances 0.000 description 4
- 239000003721 gunpowder Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 229920001800 Shellac Polymers 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229940113147 shellac Drugs 0.000 description 2
- 235000013874 shellac Nutrition 0.000 description 2
- 239000004208 shellac Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
- F42B5/26—Cartridge cases
- F42B5/36—Cartridge cases modified for housing an integral firing-cap
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Air Bags (AREA)
Description
(No Model.)
P. MOHR.
PRIMER.
No. 573,897. Patented Dec. 29, 1896.
FIGJ.
WI TNESEEE- INVENTUR- FREDERIK Mn R- ATT c1 RNEYS UNITED STATES PATENT OFFICE.
FREDERIK MOHR, OF MAGDEBURG, GERMANY, ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE FRIED. KRUPP GRUSONWERK, OF SAME PLACE.
PRIMER.
SPECIFICATION forming part of Letters Patent No. 573,897, dated December 29, 1896.
Application filed December 27, 1892. Serial No. 456,383. (No model.) Patented in Germany J ly 9, 1892, No. 74,405; in Belgium December 15, 1892, No.102,563; in France December 15, 1892, No. 226,408; in England March 7, 1894, No. 4,832; in Austria April 9, 1894:, N0-44/L634; in Italy April 10, 1894, LXXI,153. and in Hungary August 9, 1894,11'0.
Be it known that I, FREDERIK MoHR, of Magdebu1'g,Kingdom of Prussia,German Empire, have invented certain new and useful Improvements in Igniting Devices for Cartridges,(for which I have obtained Letters Patent in Germany, No. 74,405, dated July 9,1892; in Belgium, No. 102,563, dated December 15, 1892; in France, No. 226,408, dated December 15, 1892; in England, No. 4,832, dated March 7, 1894:; in Austria, No. l i/1,634, dated April 9, 1894; in Italy, LXXI, 153, dated AprillO, 189a, and in Hungary, No.2,l59,dated August 9,18%) of which the following is a specification.
My invention relates to improvements in igniting devices for cartridges.
The object of my said invention is to combine the supplementary charge necessary for igniting smokeless powder, and consisting of loose gunpowder, with the cartridge, and to insert it into the case of the cartridge in such a manner that the formation of a tight joint between the said case and the device containing the said charge is insured.
According to my invention I construct a device which contains in two different cavities, separated from each other by an anvil provided with ignition-channels, the percussion-cap with the explosive charge and the aforesaid supplementary charge necessary for igniting smokeless powder, but which differs from the igniting appliances heretofore used for the same purpose by the manner in which the device is applied to the base of the cartridge-case and which insures the forma; tion of a perfectly gas-tight joint between them.
In order that my said invention may be clearly understood, I will now proceed to describe the same with reference to the accompanying drawings, in which Figure 1 is a central section on the line of the axis of a cartridge fitted with an improved iguiting device according to my invention. Fig. 2 is a View similar to Fig. 1,
showing an alternative arrangement of the said igniting device.
Like letters of reference indicate corresponding parts in both the drawings.
Theimproved igniting device consists of a metallic plug provided with a perfectlysmooth cylindrical or slightly-conical outer surface, which plug in Fig. 1 is formed of a larger outer hollow cylinder or cone to and a smaller coaxial hollow cylinder I), connected with the former by the bottom 0 and carrying the anvil d with ignition-channels therein. The cavity of the inner cylinder 1), serving for the reception of the percussion-cap e, is separated from the cavity of the outer cylinder or cone a, containing the supplementary charge 9, by the anvil d. As the supplemeutary charge consists generally of loose gunpowder, it is expedient to prevent its falling from the cavity of the cone or'cylinder a by a layer of shellac h.
In the arrangement shown in Fig. 2 the thickness of the base 0 is made equal to the height of the inner cylinder Z) of Fig. 1, so that the annular space which would otherwise eXist within the cylinder at is dispensed with.
The plug is pressed axially into a bore of suitable shape in the base'of the cartridgecase, which is reinforced by a boss f. In order that the outer periphery of the plug and the inner periphery of the bossf may exert considerable pressure against each other to form aperfectly-tight joint, it is necessary to make the outside diameter of the plug slightly greater than the inside diameter of the bore which receives it. WVhen the slightlyconical or cylindrical plug, the metal of which is slightly thinned at the front end, is forced axially into its bearing in the boss f, it acts as a round wedge and with considerable force widens the said boss a little, the latter at the same time compressing the plug a little. By the outward pressure thus produced perpendicularly to the surfaces of contact a perfectly-hermetic joint can always be formed. This is necessary in order to cause the powder-gases generated by the explosion of the supplementary charge to automatically eX- pand the plug against its bearing in the bore,
for with the slightest leakage between the outer face of the plug and the face of the bore gases will enter and compress the plug and destroy the hermetic joint.
Igniting devices constructed according to my invention have the advantage that they can be made cheaply and can be easily removed from the cartridge for refilling pur poses.
What I claim as my invention, and desire to secure by Letters Patent, is
The combination with a cartridge formed with a smooth straight bore in its base, of an igniting device having two chambers separated from each other by the anvil, one of these chambers containing the igniting substance and the other the supplementary charge, said igniting device being provided with a smooth straight outer surface and forced axially into the said smooth bore of the cartridge in such manner as to leave the igniting device under constant strains of compression and cause it to maintain agas-tight closure of the b0re,substantial1y as and for the purpose specified.
FREDERIK MOITR.
Vitnesses:
KARL E. DETZNER, EMIL KALLNEOKER.
Publications (1)
Publication Number | Publication Date |
---|---|
US573897A true US573897A (en) | 1896-12-29 |
Family
ID=2642592
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US573897D Expired - Lifetime US573897A (en) | Frederik mohr |
Country Status (1)
Country | Link |
---|---|
US (1) | US573897A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3288066A (en) * | 1964-03-10 | 1966-11-29 | Dynamit Nobel Ag | Cartridge case |
US3306203A (en) * | 1960-04-27 | 1967-02-28 | Schaadt Franz | Threaded percussion primer |
US3446146A (en) * | 1965-12-28 | 1969-05-27 | Dynamit Nobel Ag | Artillery cartridge |
US3499386A (en) * | 1962-11-29 | 1970-03-10 | Dynamit Nobel Ag | Primer |
US5208420A (en) * | 1992-03-13 | 1993-05-04 | Hamilton Brian K | Propellant strip assembly |
US5485790A (en) * | 1993-05-28 | 1996-01-23 | Oea, Inc. | Gas generator with multiple-charge primer |
US5684266A (en) * | 1995-06-05 | 1997-11-04 | Sencorp | Propellant charge structure for generating gases to propel an object from a tool |
-
0
- US US573897D patent/US573897A/en not_active Expired - Lifetime
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3306203A (en) * | 1960-04-27 | 1967-02-28 | Schaadt Franz | Threaded percussion primer |
US3499386A (en) * | 1962-11-29 | 1970-03-10 | Dynamit Nobel Ag | Primer |
US3288066A (en) * | 1964-03-10 | 1966-11-29 | Dynamit Nobel Ag | Cartridge case |
US3446146A (en) * | 1965-12-28 | 1969-05-27 | Dynamit Nobel Ag | Artillery cartridge |
US5208420A (en) * | 1992-03-13 | 1993-05-04 | Hamilton Brian K | Propellant strip assembly |
US5485790A (en) * | 1993-05-28 | 1996-01-23 | Oea, Inc. | Gas generator with multiple-charge primer |
US5684266A (en) * | 1995-06-05 | 1997-11-04 | Sencorp | Propellant charge structure for generating gases to propel an object from a tool |
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