Measuring tool and adjusting tool for ammunition
OwnerHeinz Bergerinventor
Life of this patent
Estimating the term…
Abstract
A measuring device for measuring the concentricity of cartridges (30, 31), more particularly rifle cartridges, is essentially composed of a main body (1) provided with chambers (2) for cartridges of one or a plurality of calibers. The cartridges are radially retained in the chambers by so-called diameter compensators (9) but rotatable about their longitudinal axis. In the area of the point (39) of the projectile, an access for a measuring means (3) is provided, e.g., a dial gauge, the latter indicating the deviation of the projectile from perfect concentricity by the magnitude of its deflection variation when the cartridge (30, 31) is rotated. An aligning device (4) that is preferably also provided allows to exert a lateral pressure on the projectile in order to obtain an improved concentricity.
Claims30
A device for evaluating the concentricity of a projectile with respect to a case body of a cartridge holding the projectile, comprising:
- a main body having at least one hollow chamber adapted to receive said cartridge, the at least one chamber further adapted for holding and concentricity control of the cartridge further including a means for retaining said cartridge against a side of the at least one hollow chamber;
- and
- an access passage provided through the at least one hollow chamber,
- wherein the concentricity of the projectile with respect to the case body can be evaluated by rotating the cartridge in the at least one hollow chamber.
A device for measuring the concentricity of a projectile with respect to a case body of a cartridge comprising:
- a main body of the device for holding a cartridge including a projectile an access port in the main body;
- and
- measuring means disposed through the access port and contacting the projectile of the cartridge, thereby enabling concentricity of the projectile to be measured relative to the case body of the cartridge during rotation of the cartridge;
- wherein the cartridge is disposed in a substantially cylindrically shaped hollow chamber of the main body adapted to receive said cartridge, while the concentricity of the projectile is being measured, the hollow chamber including a throat comprising a groove and a shoulder insert within the groove for receiving the cartridge, the shoulder insert freely movable radially within the groove.
A device for evaluating the concentricity of a projectile with respect to a case body of a cartridge holding the projectile, wherein said device comprises:
- a main body having at least one hollow chamber for holding and concentricity controlling of said cartridge;
- an access passage provided through the at least one hollow chamber, such that the concentricity of said projectile with respect to said case body can be evaluated by rotating said cartridge in said at least one hollow chamber, an aligning device to exert a lateral pressure on the projectile of the cartridge inserted in said an least one hollow chamber, thereby allowing said projectile to be aligned with respect to the case body,
- wherein said aligning device comprises an aligning point which presses against the projectile of the cartridge inserted in said at least one hollow chamber by actuating an operating means.
Dependencies are inferred from the claim text.