US3270418A - Rifle sight - Google Patents

Rifle sight Download PDF

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Publication number
US3270418A
US3270418A US361402A US36140264A US3270418A US 3270418 A US3270418 A US 3270418A US 361402 A US361402 A US 361402A US 36140264 A US36140264 A US 36140264A US 3270418 A US3270418 A US 3270418A
Authority
US
United States
Prior art keywords
sight
gun
base plate
sliding
slot
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
US361402A
Other languages
English (en)
Inventor
Robert A Simeone
Anthony B Simeone
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US361402A priority Critical patent/US3270418A/en
Priority to GB43744/64A priority patent/GB1073520A/en
Priority to DE19641428740 priority patent/DE1428740A1/de
Priority to BE656216D priority patent/BE656216A/xx
Application granted granted Critical
Publication of US3270418A publication Critical patent/US3270418A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G1/00—Sighting devices
    • F41G1/06—Rearsights
    • F41G1/16—Adjusting mechanisms therefor; Mountings therefor
    • F41G1/28—Adjusting mechanisms therefor; Mountings therefor wedge; cam; eccentric

Definitions

  • This disc could be turned by a second disc attached thereto through two screws in slots to permit relative movement of the second disc which was cup shaped and carried indicia on its outer periphery.
  • the pin on the sight bracket which engages with the spiral groove is moved up carrying the sight with it.
  • the indicia did not form a linear scale. But once proper adjustment had been there is no problem of adjusting a cap or of dealing with a scale which at best is nonlinear.
  • the cap and groove disc form a unitary structure, which will be referred to as a rotatable cam member, and there is provided'a linear scale.
  • the groove groove spiral is chosen so that it is an'accurate involute of the actual trajectory.
  • the linear scale which is easily read, corresponds to a linear sighting range and
  • the member in which the sight bracket moves is not bolted to the receiver of-the rifle but in turn slides in a dovetail groove on an additional memberwhich is bolted to the gun.
  • This second member' is provided with a micrometer screw abutting against the sliding member carrying the grooved disc and permitting a precise vertical adjustment thereof for initial setting or zeroing in. As the micrometer screw head carries a scale it is easy to readjust toa particular value.
  • the drastic departure from ideal trajectory a true parabola in.a vacuum
  • the present invention therefore represents a rather unusual case where a theoretical enormous complication of the trajectory is made to perform a highly useful effect.
  • ideal conditions are departed from compensation is required. In the present case this does not occur and the sight of the present invention, which is extremely accurate with various loads in actual shooting through the atmosphere, would be completely inoperative *under ideal conditions in a vacuum. Ditffferent loads would then change the parabola completely because the shape of a parabolic trajectory is determ-ineduniquely by initial velocity and the value of gravity and no sight can be made which performs the valuable additional functions that are possible in the present sight.
  • the present invention includes as one of, its essential features that the spiral groove be an accurate involute of ,the actualtrajectory. This presents no particular problems for each groove for each caliber. While it might be thought theoretically possible to compute mathematically the shape of the spiral, in practice this is extremely difficult and it is much simpler and cheaper to determine the involute experimentally by firing a gun from a machine rest at different distances. These show the amount by. which the sight has to be raised for each range and these points then permit graphically laying out the shape of the spiral groove with ease in accordance with ordinary machine design. Of course once a groove for a particular spiral is determined it is simplicity itself to reproduce it as many times as is desired.
  • FIG. 1 is an isometric view with a sight shown exploded so that the various members are separated
  • FIG. 2 is a section through FIG. 1 along the line 2-2.
  • the gun receiver is shown at 1. To the receiver there is bolted a member 5 fastened with two bolts 6 and provided with a dovetail groove 7. This member is not shown exploded in FIG. 1 but is shown in its actual position bolted to the gun receiver.
  • the member 5 is provided with an extension from which a micrometer screw 2 extends with a head 3 having on its periphery a l
  • the bottom of this member when assembled strikes the end of the micrometer screw 2 and can be moved with respect to member 5 a definite predetermined amount by means of the screw.
  • the other side of the member 8 carries a female dove- Since the muzzle velocity is effected bytail or groove 10 and in this slides an L-shaped bracket 13 carrying a peep sight 11 in a slot 12, thmsight beingmoveable laterallycfopwindage b means of the screwi ti
  • This wiridage adjustment is one of many conventional types and is not significantly. changed by the present invention. Of course its mounting must be s Amble for the L-shaped bracket 13.
  • the bracket carries a. pin 15 and central slot 16. The pin engages spiral groove 20 in a disc 19, in the form approximately of an involute of the trajectory, which is rotatable and which is bolted to a member 17 by bolts 24.
  • the member 17 carries on its periphery a scale 18. -All of the movable members except the bracket 13 are-screwed together with a screw 21 engaging a threaded recess 22 in the member-8. The screw 21 extends-through the slot 16 of the bracket13, the length of the slot corresponding to maximum movement of the'bracket 13. v g
  • the sight In use the sight is assembled, the micrometer screw 3 adjusted or zeroed in, at any known distance for the particular ammunition load and barrel length of the gun and then sighting is-effected” merely by turning the member 17, the scale 18 being readable against a mark 23 on the member 8. Change of range requires only turning of the member -17 with one hand until the correct range is read on the 'scale 18. This can be done very rapidly, particularly as 'the scale is linear.
  • the shooter wishes to use different ammunition, that is to say ammunition with a different propellant load, he merely adjusts the head 3 of the micrometer screw 2 to zero in, at any distance to which the member 17 is set.
  • the head 3 can be then set to the same reading whenever this particular kind of ammunition is. to be used under the same conditions, and the change forgotten and after any setting of the head 3 the sighting of the gun is effected precisely as before.
  • members 17 and 19 cohstitute single rigid structure which can be moved as a unit by adjustment of the screw 2. This is an additional advantage over the sight described in our earlier patent. In that sight it .was necessary to loosen two screws and move the cap with respect to the other portion .of the rotating member carrying the spiral groove, it is possible 'for the scale to become out of adjustment with the groove.
  • a gun sight comprising a base plate adaptor to be secured to the receiver of the gun, a sight supporting member, means permitting vertical sliding of said member with respect to the base plate, said means including a rotatable cam member provided with a slot therein and a slot engaging projection on the sight supporting member,
  • the slot is in a form approximating an involute of the trajectory of a bullet of the particular gun caliber in air, (b) a member slidable vertically in the base-plate and carryingon its opposite face a gr0ove in which.

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Telescopes (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
US361402A 1964-04-21 1964-04-21 Rifle sight Expired - Lifetime US3270418A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US361402A US3270418A (en) 1964-04-21 1964-04-21 Rifle sight
GB43744/64A GB1073520A (en) 1964-04-21 1964-10-27 Gun sight
DE19641428740 DE1428740A1 (de) 1964-04-21 1964-11-11 Visier
BE656216D BE656216A (da) 1964-04-21 1964-11-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US361402A US3270418A (en) 1964-04-21 1964-04-21 Rifle sight

Publications (1)

Publication Number Publication Date
US3270418A true US3270418A (en) 1966-09-06

Family

ID=23421891

Family Applications (1)

Application Number Title Priority Date Filing Date
US361402A Expired - Lifetime US3270418A (en) 1964-04-21 1964-04-21 Rifle sight

Country Status (4)

Country Link
US (1) US3270418A (da)
BE (1) BE656216A (da)
DE (1) DE1428740A1 (da)
GB (1) GB1073520A (da)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3961423A (en) * 1975-02-18 1976-06-08 Hrebar Matthew J Secondary side mounted gun sight and arrangement, for auxiliary use with a primary top mounted telescope rifle sight
US4021926A (en) * 1975-02-18 1977-05-10 Matthew James Hrebar Secondary side mounted gunsight and arrangement, for auxiliary use with a primary top mounted telescopic rifle sight
US5655968A (en) * 1994-06-30 1997-08-12 Burton; Robert A. Driveshaft with sealed slip joint seal
US5720270A (en) * 1995-11-30 1998-02-24 Cobra Manufacturing Co., Inc. Means for adjusting the sight pin of a bow
US20110308132A1 (en) * 2010-02-18 2011-12-22 Hewes David A Incrementally adjustable sight
US20120060401A1 (en) * 2010-09-09 2012-03-15 Howard Neufeld Adjustable Rear Iron Sight for a Fire Arm
WO2013158500A1 (en) * 2012-04-18 2013-10-24 Sheltered Wings, Inc. Rifle scope turret with spiral cam mechanism
US8893424B2 (en) 2012-12-11 2014-11-25 G. Recknagel E.K. Precision Tradition Technology Telescopic sight mount with adjustable forward tilt
US20170020076A1 (en) * 2015-07-22 2017-01-26 Deere & Company Scraper strip for a scraper device
US9677848B2 (en) 2012-04-18 2017-06-13 Sheltered Wings, Inc. Multiple knob turret
WO2019237112A1 (en) * 2018-06-08 2019-12-12 Sheltered Wings, Inc. D/B/A Vortex Optics Self-centering guide rod system for a rifle scope turret
US10999974B2 (en) 2019-06-10 2021-05-11 Deere & Company Plunger scraper for reciprocating baler
US11105587B2 (en) 2016-01-27 2021-08-31 Sheltered Wings, Inc. Turret with a zero stop

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102419133B (zh) * 2011-12-01 2014-04-16 西安华科光电有限公司 一种数显线性枪瞄
US10241318B2 (en) 2014-05-12 2019-03-26 Sightron, Inc. Telescoping sight with interoperating dual course and fine controls for focus, and methods of assembly and operation thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190912238A (en) * 1909-05-24 1910-01-27 James Hillis Aperture Sight for Small-arm Rifle and Means for Attaching the same to the Cocking Piece of the Breech Bolt.
US1970623A (en) * 1932-01-19 1934-08-21 John H Redfield Rear sight for guns
US2547114A (en) * 1948-02-04 1951-04-03 Leo J Ellis Machinist's gauge
US2671966A (en) * 1949-02-01 1954-03-16 Jacobsen Carl Gun sight
US2881524A (en) * 1956-08-09 1959-04-14 Anthony B Simeone Adjustable gun sights

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190912238A (en) * 1909-05-24 1910-01-27 James Hillis Aperture Sight for Small-arm Rifle and Means for Attaching the same to the Cocking Piece of the Breech Bolt.
US1970623A (en) * 1932-01-19 1934-08-21 John H Redfield Rear sight for guns
US2547114A (en) * 1948-02-04 1951-04-03 Leo J Ellis Machinist's gauge
US2671966A (en) * 1949-02-01 1954-03-16 Jacobsen Carl Gun sight
US2881524A (en) * 1956-08-09 1959-04-14 Anthony B Simeone Adjustable gun sights

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3961423A (en) * 1975-02-18 1976-06-08 Hrebar Matthew J Secondary side mounted gun sight and arrangement, for auxiliary use with a primary top mounted telescope rifle sight
US4021926A (en) * 1975-02-18 1977-05-10 Matthew James Hrebar Secondary side mounted gunsight and arrangement, for auxiliary use with a primary top mounted telescopic rifle sight
US5655968A (en) * 1994-06-30 1997-08-12 Burton; Robert A. Driveshaft with sealed slip joint seal
US5720270A (en) * 1995-11-30 1998-02-24 Cobra Manufacturing Co., Inc. Means for adjusting the sight pin of a bow
US20110308132A1 (en) * 2010-02-18 2011-12-22 Hewes David A Incrementally adjustable sight
US8375619B2 (en) * 2010-02-18 2013-02-19 Troy Industries, Inc. Incrementally adjustable sight
US20120060401A1 (en) * 2010-09-09 2012-03-15 Howard Neufeld Adjustable Rear Iron Sight for a Fire Arm
US10724828B2 (en) 2012-04-18 2020-07-28 Sheltered Wings, Inc. Scope turret
US10309749B2 (en) 2012-04-18 2019-06-04 Sheltered Wings, Inc. Multiple knob turret
US11940243B2 (en) 2012-04-18 2024-03-26 Sheltered Wings, Inc. Scope turret
US8919026B2 (en) 2012-04-18 2014-12-30 Sheltered Wings, Inc. Rifle scope turret with spiral cam mechanism
US9435609B2 (en) 2012-04-18 2016-09-06 Sheltered Wings, Inc. Scope turret
US10962328B2 (en) 2012-04-18 2021-03-30 Sheltered Wings Inc. Scope turret
US9677848B2 (en) 2012-04-18 2017-06-13 Sheltered Wings, Inc. Multiple knob turret
WO2013158500A1 (en) * 2012-04-18 2013-10-24 Sheltered Wings, Inc. Rifle scope turret with spiral cam mechanism
US10690445B2 (en) 2012-04-18 2020-06-23 Sheltered Wings, Inc. Multiple knob turret
WO2013158493A1 (en) * 2012-04-18 2013-10-24 Sheltered Wings, Inc. Rifle scope turret with spiral cam mechanism
US8893424B2 (en) 2012-12-11 2014-11-25 G. Recknagel E.K. Precision Tradition Technology Telescopic sight mount with adjustable forward tilt
US10405495B2 (en) * 2015-07-22 2019-09-10 Deere & Company Scraper strip for a scraper device
US20170020076A1 (en) * 2015-07-22 2017-01-26 Deere & Company Scraper strip for a scraper device
US11105587B2 (en) 2016-01-27 2021-08-31 Sheltered Wings, Inc. Turret with a zero stop
WO2019237112A1 (en) * 2018-06-08 2019-12-12 Sheltered Wings, Inc. D/B/A Vortex Optics Self-centering guide rod system for a rifle scope turret
US11156435B2 (en) 2018-06-08 2021-10-26 Sheltered Wings, Inc. Self-centering guide rod system for a rifle scope turret
US11971241B2 (en) 2018-06-08 2024-04-30 Sheltered Wings, Inc. Self-centering guide rod system for a rifle scope turret
US10999974B2 (en) 2019-06-10 2021-05-11 Deere & Company Plunger scraper for reciprocating baler

Also Published As

Publication number Publication date
GB1073520A (en) 1967-06-28
BE656216A (da) 1965-03-16
DE1428740A1 (de) 1970-07-02

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