US1777771A - Rifle - Google Patents

Rifle Download PDF

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Publication number
US1777771A
US1777771A US359162A US35916229A US1777771A US 1777771 A US1777771 A US 1777771A US 359162 A US359162 A US 359162A US 35916229 A US35916229 A US 35916229A US 1777771 A US1777771 A US 1777771A
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US
United States
Prior art keywords
barrel
bullet
base
grooves
rifle
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
US359162A
Inventor
Arno R Scherf
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Individual
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Individual
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Publication date
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Priority to US359162A priority Critical patent/US1777771A/en
Application granted granted Critical
Publication of US1777771A publication Critical patent/US1777771A/en
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Expired - Lifetime legal-status Critical Current

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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
    • F41A21/16—Barrels or gun tubes characterised by the shape of the bore
    • F41A21/18—Grooves-Rifling

Definitions

  • V Figure l is a side elevation of a rifle emformation and application' may be made 55 bodying my invention. within the scope of the appended claim.
  • FIG. 3 is a longitudinal section of a porthe discharge end of the barrel, whereby to tion of a rifie embodying my invention. ⁇ permit the confined gases to escape around Fig. 5 is a fragmentary section, similar to the sides of the bullet just before its base Figs. 2 and 3, showing a modified form of emerges from the barrel. 1 65 my invention.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Toys (AREA)

Description

Oct. 7, 1930- A. R. scl-IERF 1,177,771
I mmm mag Apm 29, '1929 1/9' VEW TOR Pasted ea. 7, 1930 7 y *1,777,771
Atmo a. sensus, on' sAN'JosE, CALIFORNIA v.Appfication filed April 29, 1929.' Serial No. 359,162.v
V It is the object of the invention to provide It is to be understood, of course, that While a means and method of increasing the firing I have herein shown and described but one accuracy of rifies. specific embodiment of the invention,
In the drawing: changes in form, construction, and method of V Figure l is a side elevation of a rifle emformation and application' may be made 55 bodying my invention. within the scope of the appended claim.
Flo'ure 2 1s an enlarc'ed cross-section of I claim:
C' 23 the barrel of a rlfle embodymg my 1nvent1on A rlfle barrel having rlfling grooves at a point adjacent the breech.` formed therein throughout its length, the Figure 3 is an enlarged cross-section of rifling grooves being uniformly increased 111 Co the barrel at 3-3 ofV Figure l. cross-sectional area a distance lnwardly from Figure 4: is a longitudinal section of a porthe discharge end of the barrel, whereby to tion of a rifie embodying my invention.` permit the confined gases to escape around Fig. 5 is a fragmentary section, similar to the sides of the bullet just before its base Figs. 2 and 3, showing a modified form of emerges from the barrel. 1 65 my invention. ARNO R. SCHERF.
Referring now more particularly to the' drawing I show at 1 a rifie barrel provided with any number and form of rifling grooves V as at 2, with the lands indicated at 3. 79
In eifecting my invention I increase the depth of the several grooves 2 .equally throughout the latter part of their length, that is to say for about an inch or so Where they communicate With the discharge end of the barrel, indicated at 4.
By means of my invention as the bullet5' emerges from the barrel the confined gases are permitted to pass through the deepened grooves at 4 and escape upon all sides thereof.
It will be noted that by this method the gas pressure has expended its greatest force When the bullet reaches the end of the barrel and is then allowed to flow past the bullet before the base of the bullet emerges from the end of the barrel.
Ordinarily when the base of the bullet leaves the barrel its slightest deviation `from axial alignment therewith, or the deformed 407base of the bullet, will permit the gases to escape unequally about the base thereof, thereby accentuating the. Wabbling movement, but by reducing the gas pressure beg hind the bullet just before its base emerges from the barrel this result is satisfactorily 95 corrected, and the'development of unequal pressures effectually prevented. e
In Figure -5 I have shown a form of the invention in-which thecorners only of the I V V ma portion lare deepened as shown at 6.
US359162A 1929-04-29 1929-04-29 Rifle Expired - Lifetime US1777771A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US359162A US1777771A (en) 1929-04-29 1929-04-29 Rifle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US359162A US1777771A (en) 1929-04-29 1929-04-29 Rifle

Publications (1)

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US1777771A true US1777771A (en) 1930-10-07

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US359162A Expired - Lifetime US1777771A (en) 1929-04-29 1929-04-29 Rifle

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3427648A (en) * 1953-05-26 1969-02-11 Henry P Manning Missiles and gun barrels for eliminating sabots therefrom
US4527348A (en) * 1984-01-27 1985-07-09 D. C. Brennan Firearms, Inc. Gun barrel
US4590698A (en) * 1982-11-18 1986-05-27 Finn Charles A Barrel bypass system--full length groove
US20130239451A1 (en) * 2011-09-07 2013-09-19 Gaston Glock Marking of the barrel of a firearm

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3427648A (en) * 1953-05-26 1969-02-11 Henry P Manning Missiles and gun barrels for eliminating sabots therefrom
US4590698A (en) * 1982-11-18 1986-05-27 Finn Charles A Barrel bypass system--full length groove
US4527348A (en) * 1984-01-27 1985-07-09 D. C. Brennan Firearms, Inc. Gun barrel
WO1985003343A1 (en) * 1984-01-27 1985-08-01 D.C. Brennan Firearms, Inc. Gun barrel
US20130239451A1 (en) * 2011-09-07 2013-09-19 Gaston Glock Marking of the barrel of a firearm
US9068789B2 (en) * 2011-09-07 2015-06-30 Value Privatstiftung Marking of the barrel of a firearm

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