US32983A - Cast-ibon ordnance - Google Patents
Cast-ibon ordnance Download PDFInfo
- Publication number
- US32983A US32983A US32983DA US32983A US 32983 A US32983 A US 32983A US 32983D A US32983D A US 32983DA US 32983 A US32983 A US 32983A
- Authority
- US
- United States
- Prior art keywords
- gun
- cast
- ordnance
- ibon
- weight
- 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
- 239000000843 powder Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
- F41A21/28—Gas-expansion chambers; Barrels provided with gas-relieving ports
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/91—Product with molecular orientation
Definitions
- Figure 1 represents a side elevation of a gun constructed in the improved form invented by me
- Fig. 2 represents a longitudinal section of the same.
- I have divided the gun into four sections bounded as shown by the lines 1, 2 and 3 in Fig. 2.
- the part between the end of the breech and the line 1, I call the breech.
- the part between the lines l and 2 I call the fort.
- the part between the lines 2 and 3, I call the junction; and the part between the line 3 and the muzzle, I call the chase.
- of measurement which I have employed for the construct-ion of the gun is the diameter of its bore,-or, as it is generally called, the caliber of the gun; and however large or small may be the piece of ordnance which it is required to construct, the dimensions'of its several parts will be expressed in multiples or fractions of its own caliber corresponding to the proportions of the gun laid down in F ig. 2, whose dimensions at important parts are denoted in units of length equal to its own caliber.
- the quantity of powder with which the new gun is to be tired bears the same relation to the weight of its projectile that exists betwen the powder and projectile for which the gun shown in Fig. 2, is designed; the proper weight of the projectile for which is a shell or hollow spher ical ball, about three quarters of the weight of a solid spherical ball of the same caliber to be tired with about one-seventh its weight
- the unit of powder For example, it is required to make a cannon having abore eight inches in diameter; the following dimensions are ob-
- the weight of the projectile and of the powder would be as follows, vizz Shell, empty 70 lbs. Powder A 10 lbs.
- the diameters at 1 and 2 may be reduced to 2.909 calibei's, and the length of breech to 1.455 calibers, and the breech may have an ellipsoidal instead of a spheroidal form.
- the dimensions in calibers of all the other parts may be obtained by measuring the drawing in Figj2.
- the form of the breech may be hemi-spherical, hemispheroidal or ellipsoidal as greater or less strength is required.
- the surface of the fort should be curvilinear longitudinally as well as transversely.
- But4 as artillerists insist on the importance of having the means of taking a direct level aim for point blank tiring, in case of injury to the sights, the fort of the gun. represented in the drawings is made cylindrical the diameter being for that purpose slightly reduced between the points 1 and 2.
- the trunnions and other projections may be cast on, in the usual Way, but. the strength of the gun will be much increased if it is cast Without them; and they can be attached subsequently by a method., a more particular description of Which is given in another patent granted to me and bearing even date herewith.
Description
J.A.DAHLGREN. CAST IRON ORDNANGE.
Patented Aug. 6, 1861.
@@2172 ga/aga.- o A UNITED STATES OFFICE.
JOHN A. DAHLGREN, OI" PHILADELPHIA, PENNSYLVANIA.
CAST-IRON ORDNANCE.
Specification of Letters Patent No. 32,983, dated August 6, 1861.
T o all 'whom 'it Amay concern.:
Be it known that I, .loi-IN A. DAHLGREN, of the city and county of Philadelphia, in the State of Pennsylvania, have invented a new Forni for Cast-Iron Ordnance, which consists in so shaping the gun as to dispose all the metal available for the purpose about the part where the greatest if not the whole force of explosion is exerted when the gun is discharged, whereby I am enabled with a. given quantity and quality of iron to make cannon which shall throw heavier' projectiles and a greater aggregate weight of them than cannon constructed by the rules hitherto practiced.
In the accompanying drawings, Figure 1 represents a side elevation of a gun constructed in the improved form invented by me, and Fig. 2, represents a longitudinal section of the same.
For convenience of description I have divided the gun into four sections bounded as shown by the lines 1, 2 and 3 in Fig. 2. The part between the end of the breech and the line 1, I call the breech. The part between the lines l and 2 I call the fort. The part between the lines 2 and 3, I call the junction; and the part between the line 3 and the muzzle, I call the chase. of measurement which I have employed for the construct-ion of the gun is the diameter of its bore,-or, as it is generally called, the caliber of the gun; and however large or small may be the piece of ordnance which it is required to construct, the dimensions'of its several parts will be expressed in multiples or fractions of its own caliber corresponding to the proportions of the gun laid down in F ig. 2, whose dimensions at important parts are denoted in units of length equal to its own caliber.
Provided that, the quantity of powder with which the new gun is to be tired bears the same relation to the weight of its projectile that exists betwen the powder and projectile for which the gun shown in Fig. 2, is designed; the proper weight of the projectile for which is a shell or hollow spher ical ball, about three quarters of the weight of a solid spherical ball of the same caliber to be tired with about one-seventh its weight The unit of powder. For example, it is required to make a cannon having abore eight inches in diameter; the following dimensions are ob- By the same rule also the weight of the projectile and of the powder would be as follows, vizz Shell, empty 70 lbs. Powder A 10 lbs.
If however the weight of the charge of powder is to be materially less than one seventh to that of the shell or other projectile, then the diameters at 1 and 2 may be reduced to 2.909 calibei's, and the length of breech to 1.455 calibers, and the breech may have an ellipsoidal instead of a spheroidal form. In like manner the dimensions in calibers of all the other parts may be obtained by measuring the drawing in Figj2.
In smooth-bored cannon the form of the breech may be hemi-spherical, hemispheroidal or ellipsoidal as greater or less strength is required. Strictly speaking, the surface of the fort should be curvilinear longitudinally as well as transversely. But4 as artillerists insist on the importance of having the means of taking a direct level aim for point blank tiring, in case of injury to the sights, the fort of the gun. represented in the drawings is made cylindrical the diameter being for that purpose slightly reduced between the points 1 and 2. Another deviation from strict theoretic proportions is produced by a swell about the muzzle, chiefly to protect it from liability to frac- CIL ture by being struck against, or by, hard bodies: this swell also answers another purpose especially useful on board ships of giving a hold for a lashing in case the gun is housed. v
The trunnions and other projections may be cast on, in the usual Way, but. the strength of the gun will be much increased if it is cast Without them; and they can be attached subsequently by a method., a more particular description of Which is given in another patent granted to me and bearing even date herewith.
That claim` as my invention and desire to secure by Letters Patent, isp A caste-iron gun constructed substantially according to the rule herein described; whereby the quantities of metal disposed in the different parts of the gun are proportionate, or nearly so, to the relative degrees of strain exerted by the force of the eX- ploded charge at those parts respectively. JNO. A. DAHLGREN. lVitnesses JNO. D. BRANDT, A. B. N oR'roN.
Publications (1)
Publication Number | Publication Date |
---|---|
US32983A true US32983A (en) | 1861-08-06 |
Family
ID=2102588
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US32983D Expired - Lifetime US32983A (en) | Cast-ibon ordnance |
Country Status (1)
Country | Link |
---|---|
US (1) | US32983A (en) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4906244A (en) * | 1988-10-04 | 1990-03-06 | Cordis Corporation | Balloons for medical devices and fabrication thereof |
US5156612A (en) * | 1988-10-04 | 1992-10-20 | Cordis Corporation | Balloons for medical devices and fabrication thereof |
US5565523A (en) * | 1994-07-25 | 1996-10-15 | Advanced Cardiovascular Systems, Inc. | Polymer blends for use in making medical devices including catheters and balloons for dilatation catheters |
US6024752A (en) * | 1998-05-11 | 2000-02-15 | Scimed Life Systems, Inc. | Soft flexible tipped balloon |
US6024722A (en) * | 1994-01-06 | 2000-02-15 | Scimed Life Systems, Inc. | Thermoplastic polyimide balloon catheter construction |
US6093463A (en) * | 1997-12-12 | 2000-07-25 | Intella Interventional Systems, Inc. | Medical devices made from improved polymer blends |
US6099926A (en) * | 1997-12-12 | 2000-08-08 | Intella Interventional Systems, Inc. | Aliphatic polyketone compositions and medical devices |
US6110142A (en) * | 1988-10-04 | 2000-08-29 | Cordis Corporation | Balloons for medical devices and fabrication thereof |
US6146356A (en) * | 1994-03-02 | 2000-11-14 | Scimed Life Systems, Inc. | Block copolymer elastomer catheter balloons |
US6165207A (en) * | 1999-05-27 | 2000-12-26 | Alsius Corporation | Method of selectively shaping hollow fibers of heat exchange catheter |
DE4480681C2 (en) * | 1994-02-17 | 2001-09-27 | Scimed Life Systems Inc | Process for the production of catheter balloons and oriented balloons produced thereafter |
US20010043998A1 (en) * | 1999-10-25 | 2001-11-22 | Chen John Jianhua | Dimensionally stable balloons |
US20020163104A1 (en) * | 2001-03-26 | 2002-11-07 | Tom Motsenbocker | Balloon folding technology |
US20030167034A1 (en) * | 1999-09-15 | 2003-09-04 | Balding David P. | Automatic fever abatement applications |
US20040078052A1 (en) * | 2002-10-21 | 2004-04-22 | St. Pierre Ernest J. | Multilayer medical device |
US20040093720A1 (en) * | 2000-06-08 | 2004-05-20 | Tom Motsenbocker | Stent crimping method |
US20070083188A1 (en) * | 2004-05-27 | 2007-04-12 | Axel Grandt | Catheter having overlapping stiffening members |
US20100241154A1 (en) * | 1997-10-15 | 2010-09-23 | Boston Scientific Scimed, Inc. | Catheter with Spiral Cut Transition Member |
US9050442B2 (en) | 1999-01-25 | 2015-06-09 | Atrium Medical Corporation | Expandable fluoropolymer device for delivery of therapeutic agents and method of making |
-
0
- US US32983D patent/US32983A/en not_active Expired - Lifetime
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6110142A (en) * | 1988-10-04 | 2000-08-29 | Cordis Corporation | Balloons for medical devices and fabrication thereof |
US5156612A (en) * | 1988-10-04 | 1992-10-20 | Cordis Corporation | Balloons for medical devices and fabrication thereof |
US4906244A (en) * | 1988-10-04 | 1990-03-06 | Cordis Corporation | Balloons for medical devices and fabrication thereof |
US6024722A (en) * | 1994-01-06 | 2000-02-15 | Scimed Life Systems, Inc. | Thermoplastic polyimide balloon catheter construction |
DE4480681C2 (en) * | 1994-02-17 | 2001-09-27 | Scimed Life Systems Inc | Process for the production of catheter balloons and oriented balloons produced thereafter |
US6146356A (en) * | 1994-03-02 | 2000-11-14 | Scimed Life Systems, Inc. | Block copolymer elastomer catheter balloons |
US5747591A (en) * | 1994-07-25 | 1998-05-05 | Advanced Cardiovascular Systems, Inc. | Polymer blends for use in making medical devices including catheters and balloons for dilation catheters |
US5565523A (en) * | 1994-07-25 | 1996-10-15 | Advanced Cardiovascular Systems, Inc. | Polymer blends for use in making medical devices including catheters and balloons for dilatation catheters |
US20100241154A1 (en) * | 1997-10-15 | 2010-09-23 | Boston Scientific Scimed, Inc. | Catheter with Spiral Cut Transition Member |
US8206372B2 (en) | 1997-10-15 | 2012-06-26 | Boston Scientific Scimed, Inc. | Catheter with spiral cut transition member |
US6099926A (en) * | 1997-12-12 | 2000-08-08 | Intella Interventional Systems, Inc. | Aliphatic polyketone compositions and medical devices |
US6093463A (en) * | 1997-12-12 | 2000-07-25 | Intella Interventional Systems, Inc. | Medical devices made from improved polymer blends |
US6024752A (en) * | 1998-05-11 | 2000-02-15 | Scimed Life Systems, Inc. | Soft flexible tipped balloon |
US9050442B2 (en) | 1999-01-25 | 2015-06-09 | Atrium Medical Corporation | Expandable fluoropolymer device for delivery of therapeutic agents and method of making |
US6165207A (en) * | 1999-05-27 | 2000-12-26 | Alsius Corporation | Method of selectively shaping hollow fibers of heat exchange catheter |
US20030167034A1 (en) * | 1999-09-15 | 2003-09-04 | Balding David P. | Automatic fever abatement applications |
US20010043998A1 (en) * | 1999-10-25 | 2001-11-22 | Chen John Jianhua | Dimensionally stable balloons |
US20040093720A1 (en) * | 2000-06-08 | 2004-05-20 | Tom Motsenbocker | Stent crimping method |
US20050244533A1 (en) * | 2001-03-26 | 2005-11-03 | Tom Motsenbocker | Balloon folding technology |
US20050275140A1 (en) * | 2001-03-26 | 2005-12-15 | Tom Motsenbocker | Balloon folding technology |
US20020163104A1 (en) * | 2001-03-26 | 2002-11-07 | Tom Motsenbocker | Balloon folding technology |
US20040078052A1 (en) * | 2002-10-21 | 2004-04-22 | St. Pierre Ernest J. | Multilayer medical device |
US20070083188A1 (en) * | 2004-05-27 | 2007-04-12 | Axel Grandt | Catheter having overlapping stiffening members |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US32983A (en) | Cast-ibon ordnance | |
Kopel et al. | This History of Bans on Types of Arms Before 1900 | |
US20110048269A1 (en) | Rifle Cartridge | |
Lewis | Small arms and ammunition in the United States service | |
Hacker | Astride two worlds: technology and the American Civil War | |
GB1157555A (en) | Improvements in or relating to Target Practice Rounds. | |
US275674A (en) | Projectile | |
Walter | Snipers at War: An Equipment and Operations History | |
US32830A (en) | Guide for bombs | |
Rable | Index to Ironclads and Big Guns of the Confederacy: The Journal and Letters of John M. Brooke | |
Seigler | The Best Gun in the World: George Woodward Morse and the South Carolina State Military Works | |
US602875A (en) | Cartridge-shell | |
US43881A (en) | Improvement in fire-arms | |
Busk | The Rifle: And how to Use It. Comprising a Description of that Valuable Weapon in All Its Varieties | |
US44194A (en) | Improvement in the construction of ordnance | |
US35241A (en) | Improvement in breech-loading fire-arms | |
Crawford et al. | Swansong: Blakely, Brooke and Vavasseur. Part 1 | |
Lacon | Adjourned Discussion | |
Garie | A special pattern 80 pr RML gun for Victoria | |
Kingsbury | An Elementary Treatise on Artillery and Infantry: Adapted to the Service of the United States: Designed for the Use of Cadets of the US Military Academy, and for Officers of the Independent Companies of Volunteers and Militia | |
Brown | Notes on US Arsenals, Depots, and Martial Firearms of the Second Seminole War | |
Reilly | The Iron Guns of Willard Park: Washington Navy Yard | |
Owen et al. | Elementary lectures on artillery, by CH Owen and TL Dames | |
US33660A (en) | Improvement in rifled projectiles for ordnance | |
Johnson | TJ Rodman: Mid-19th century gun barrel research and design for the US Army |