Patent · US Expired

Rammer for artillery shells

US4957028A · kind A · utility

8Cited by

4References

7Claims

0Family size

Assignee

Firma Wegman & Co. GmbH · DE

Inventors

Karl Lieberum · Fritzlar, DE
Werner Hofmeister · Rochlitz, DE
Peter Grunewald · Bocholt, DE

Key dates

Filing date	Jul 14, 1989
Grant date	Sep 18, 1990
Priority date	—
Expiry date	Jul 14, 2009

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF41A9/42
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A rammer for artillery shells with a carriage behind the gun's tube that supports a tray in alignment with the powder chamber, that has a mechanism at the rear to intercept the shell, that travels on slides along a track paralleling the axis R of the tube, that is coupled to a piston-and-cylinder drive mechanism to accelerate toward the tube, and that has a braking mechanism to brake it at a prescribed distance from the rear end of the tube. The braking mechanism has a shock absorber position in the longitudinal midplane of the carriage with a piston that moves against the force of a friction spring inside a cylinder and that has a piston rod projecting forward beyond the front of the carriage with a stop mounted on it, whereby the stop rests directly against the rear end of the tube when the carriage is in the forward and braked position.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.