Abstract: A recoil device is provided for a gun having a barrel with a breech. The device includes a breech nut, a brake assembly, a pneumatic spring and a counter-recoil buffer. The breech nut has first and second adjacent sides. The brake assembly includes a brake cylinder that mounts to the breech nut on the first side. The pneumatic spring mounts to the breech nut on the second side. The counter-recoil buffer attaches to the pneumatic spring. The brake cylinder and the pneumatic spring internally push fluids for recoil absorption and return in response to firing the gun.

Abstract: A system for auditing event data includes an interface and a processor. The interface is configured to receive an audit query request and a client key. The processor is configured to determine whether the audit query request is valid; determine whether a chain of events is stored in an audit store, wherein the chain of events is associated with the audit query request; and in response to determining that the chain of events is stored in the audit store, provide data for the audit query request.

Abstract: A load sensor compares generated values of load signals to predicted values of the load signals. Where an error between a generated value and a predicted value is less than a threshold, a value of zero is transmitted by the load sensor to an external systems, in an encoded stream of bits, and the error are used to calculate a predicated value of a next load signal, such that insubstantial changes in loading resulting in small errors are not transmitted to the external system. Where an error between the generated value and the predicted value exceeds the threshold, however, a value representative of the error is transmitted to the external system, in an encoded stream of bits. The external system processes the stream of bits to calculate the error, to determine that an item has been placed on a storage system or removed therefrom, or to identify the item.

Abstract: A system for committing event data includes an interface and a hardware processor. The interface is configured to receive modified input data for desired events. The hardware processor is configured to retrieve the desired events from a desired aggregate; select requested event to modify from the desired aggregate; replace input data of the requested event with the modified input data to create a modified aggregate; replay events of the modified aggregate N to generate a new state of aggregate N; and provide the new state of aggregate N.

Abstract: An apparatus is provided for automatically mounting a helix on a radial bristle cosmetic brush, and in particular, a mascara brush. The brush has a twisted wire core and may be mounted to a plastic stem or rod that extends back to a cap/handle combination. The helix comprises a spiral series of adjacent coils. The helix is adapted to be mounted about the core of the brush such that the radially extending bristles of the brush project out between adjacent coils of the helix. The apparatus for mounting the helix on the brush comprises a base supporting a cradle. The cradle receives and aligns a helix and a brush. A pusher mounted next to the cradle slides the brush toward the helix such that the tip of the brush comes to rest against one end of the helix. A gripper holds the other end of the helix so that the helix is stationary relative to rotation of the brush. A rotator has a pair of jaws supporting wheels that grasp the stem of the brush. At least one of the wheels is driven to rotate the brush.