US2048687A - Clinometer for a rifle - Google Patents

Clinometer for a rifle Download PDF

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Publication number
US2048687A
US2048687A US36139A US3613935A US2048687A US 2048687 A US2048687 A US 2048687A US 36139 A US36139 A US 36139A US 3613935 A US3613935 A US 3613935A US 2048687 A US2048687 A US 2048687A
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United States
Prior art keywords
rifle
clinometer
spirit level
slot
elevation
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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
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US36139A
Inventor
Richard C Coupland
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Individual
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Individual
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Priority to US36139A priority Critical patent/US2048687A/en
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Publication of US2048687A publication Critical patent/US2048687A/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
    • F41G—WEAPON SIGHTS; AIMING
    • F41G1/00—Sighting devices
    • F41G1/46—Sighting devices for particular applications
    • F41G1/48—Sighting devices for particular applications for firing grenades from rifles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
    • F41C27/00—Accessories; Details or attachments not otherwise provided for

Definitions

  • the butt of the rifle is supported on the ground and the angle of firing is established by holding the rifle in an inclined position.
  • the purpose of this invention is to provide a "clinometer which may be conveniently mounted on the bayonet lug of the rifle and which will serve to indicate the elevation or range setting of the rifle and also the cross-level or lateral inclination of the attachment on the butt of the rifle.
  • FIG. 1 is a View in side elevation showing the application of the clinometer to a rifle.
  • Fig. 2 is an enlarged view in side elevation of the clinometer
  • Fig. 3 is a sectional view on the line 3-3 of Fig. 2.
  • a rifle 5 having attached to the butt 6 of the stock I a discharger 8 which is of the type shown in Patent No. 1,986,794 of January 8, 1935, and is adapted for firing grenades and pyrotechnic signals.
  • the upper band 9 of the gun stock 1 is provided with a lug ID for the purpose of mounting a bayonet, not shown, and also with spaced ears II for attachment of a stacking swivel I2.
  • the clinometer comprises a body l3 which is 5 supported on the upper band 9 and has a T-slot [4 whereby it is mounted on the bayonet lug [0 when applied by a movement parallel to the gun.
  • the body has a semi-circular upper face 15 formed with a T-slot; It for receiving the corre- 10 spondingly shaped shoe ll of a circular spirit level l8.
  • a reference mark I!) on the spirit level is readable against a range or elevation scale 20 inscribed on the side of the body adjacent the edge of the face [5.
  • the spirit level is moved to the range or elevation desired and the rifle is grasped by its stock and moved into a position in which the bubble of the spirit level is centered.
  • the axis of the discharger is now cross-leveled into a 20 Vertical plane and is inclined an amount which will cause the projectile to travel to the designated range.
  • a clinometer comprising a body having a 25 slot in its under face whereby it is mounted on the bayonet lug of a rifle and having a semi-circular upper face with a T-slot, a circular spirit level having a foot in the T-slot of the body, and an elevation scale on the body against which the 30 spirit level is readable.
  • a clinometer comprising a body having a semi-circular upper face with a T-slot, a circular spirit level having a foot in the T-slot of the body, and an elevation scale on the body against 35 which the spirit level is readable.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Description

July 28, 1936. R. c. COUPLAND CLINOMETER FOR A RIFLE Filed Aug. 14, 1935 Invefitmr' Richard EJImu-p land Attnw-LE Patented July 28, 1936 UNITED STATES PATEN-T OFFICE GLINOll/IETER FOR A RIFLE Richard C. Coupland, United States Army, Norfolk, Va.
Application August 14, 1935, Serial No. 36,139
2 Claims.
(Granted under the act of March 3, 1883, as
amended April 30,
rifle the butt of the rifle is supported on the ground and the angle of firing is established by holding the rifle in an inclined position.
The purpose of this invention is to provide a "clinometer which may be conveniently mounted on the bayonet lug of the rifle and which will serve to indicate the elevation or range setting of the rifle and also the cross-level or lateral inclination of the attachment on the butt of the rifle.
To these and other ends, the invention consists in the construction, arrangement and combination of elements described hereinafter and pointed out in the claims forming a part of this specification.
A practical embodiment of the invention is illustrated in the accompanying drawing, where- Fig. 1 is a View in side elevation showing the application of the clinometer to a rifle.
Fig. 2 is an enlarged view in side elevation of the clinometer, and
Fig. 3 is a sectional view on the line 3-3 of Fig. 2.
Referring to the drawing by characters of reierence there is shown a rifle 5 having attached to the butt 6 of the stock I a discharger 8 which is of the type shown in Patent No. 1,986,794 of January 8, 1935, and is adapted for firing grenades and pyrotechnic signals.
The upper band 9 of the gun stock 1 is provided with a lug ID for the purpose of mounting a bayonet, not shown, and also with spaced ears II for attachment of a stacking swivel I2.
The clinometer comprises a body l3 which is 5 supported on the upper band 9 and has a T-slot [4 whereby it is mounted on the bayonet lug [0 when applied by a movement parallel to the gun. The body has a semi-circular upper face 15 formed with a T-slot; It for receiving the corre- 10 spondingly shaped shoe ll of a circular spirit level l8. A reference mark I!) on the spirit level is readable against a range or elevation scale 20 inscribed on the side of the body adjacent the edge of the face [5.
In operation, the spirit level is moved to the range or elevation desired and the rifle is grasped by its stock and moved into a position in which the bubble of the spirit level is centered. The axis of the discharger is now cross-leveled into a 20 Vertical plane and is inclined an amount which will cause the projectile to travel to the designated range.
I claim:
1. A clinometer comprising a body having a 25 slot in its under face whereby it is mounted on the bayonet lug of a rifle and having a semi-circular upper face with a T-slot, a circular spirit level having a foot in the T-slot of the body, and an elevation scale on the body against which the 30 spirit level is readable.
2. A clinometer comprising a body having a semi-circular upper face with a T-slot, a circular spirit level having a foot in the T-slot of the body, and an elevation scale on the body against 35 which the spirit level is readable.
RICHARD C. COUPLAND.
US36139A 1935-08-14 1935-08-14 Clinometer for a rifle Expired - Lifetime US2048687A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US36139A US2048687A (en) 1935-08-14 1935-08-14 Clinometer for a rifle

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Application Number Priority Date Filing Date Title
US36139A US2048687A (en) 1935-08-14 1935-08-14 Clinometer for a rifle

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US2048687A true US2048687A (en) 1936-07-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4214372A (en) * 1976-08-12 1980-07-29 Sarmac S.A. Aiming instrument

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4214372A (en) * 1976-08-12 1980-07-29 Sarmac S.A. Aiming instrument

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