Abstract: Device (12) for counting the total number of shots fired by a firearm (11) and those fired with a same loader mounted on the weapon by means of the acquisition, analysis and interpretation of physical parameters relating to its firing cycle, in such a way that the information obtained is shown in real time on a visual display unit with the activation, visual display and setting to zero being automatic actions without intervention from the user, by means of a computer programme, with it being possible to carry out such operations manually as well. The visual display unit may show other parameters of the firearm's operation (11) such as the temperature of those points most likely to overheat so that the weapon may be used with safety and precision.

Abstract: Box type ammunition clip that can be totally or partially fitted to an automatic and/or semiautomatic firearm 11, including a distance detection mechanism 25 that measures the distance between the ammunition push tile 22 and the base 28 of the rounds 21 clip 29.

Abstract: Device (12) for counting shots fired by an automatic firearm (11), having a cartridge chamber containing a cartridge that can be expelled through an expulsion window and a first emission means that emits a continuous electromagnetic signal in such a manner that it is interrupted by a casing expelled from the cartridge chamber which corresponds to the used cartridge. The shot-counting device (12) of the invention is capable of monitoring the number of casings expelled from a cartridge chamber of the firearm (11) via an expulsion window and showing, on a display screen, the corresponding number of shots left available in a magazine (13) fitted to the firearm (11).

Abstract: The system for displaying information displays, to a user of a vehicle, information data on a first screen (16) which is connected to a computer (14) connected to a portable electronic device (19) which contains a second screen (17), via a data input/output means (15), such that the first screen (16) displays visually inverted the same information data as that displayed by the second screen (17), so that whilst the driver is driving, he can read the information data reflected in the front windscreen of the vehicle, the reflected image being obtained from the first screen (16). Thus, the driver is in control of the vehicle whilst he is driving, and simultaneously operating the portable electronic device (19).

Abstract: Device (12) for counting shots fired by an automatic firearm (11), comprising a cartridge chamber containing a cartridge that can be expelled through an expulsion window, comprising a first emission means that emits a continuous electromagnetic signal in such a manner that it is interrupted by a casing expelled from the cartridge chamber and corresponding to the used cartridge. The shot-counting device (12) of the invention is capable of monitoring the number of casings expelled from a cartridge chamber of the firearm (11) via an expulsion window and showing, on a display screen, the corresponding number of shots left available in a magazine (13) fitted to the firearm (11).

Abstract: A drilling rig comprising a base; and an A-frame carried by the base. The A-frame has left and right hydraulic mast cylinders with pistons in the cylinders. The rig also has a mast pivoted on the base and capable of being raised from a horizontal position to a vertical position. The mast has left and right pads adapted to respectively contact the left and right mast pistons before the center of gravity of the mast passes a point directly above the axis of rotation of the mast. The rig also has drawworks adapted to raise the mast about its axis of rotation; and has a hydraulic control system comprising means for synchronizing the movement of the left mast piston with the right mast piston.