Abstract: Equipment for mining and excavating includes a bucket used to remove overburden, a boom for positioning the bucket, and a hoist and drag cable for controlling the bucket. The equipment also includes a drum; a pedestal, a pinion assembly, and a cartridge assembly. The drum is used to wind the hoist cable or the drag cable. The pedestal supports the drum and surrounds a bull gear attached to the drum. A pinion of the pinion assembly extends within a port in the pedestal to engage the bull gear. The cartridge assembly is attached to the pedestal and includes an electric motor having a shaft extending from the motor, and a gear reduction coupled to the motor shaft. The pinion assembly is driven by the motor via the gear reduction. The pedestal allows the pinion assembly and other components to be removed or installed, without entirely separating the cartridge assembly from the pedestal.

Abstract: Equipment for mining and excavating includes a bucket used to remove overburden, a boom for positioning the bucket, and a hoist and drag cable for controlling the bucket. The equipment also includes a drum; a pedestal, a pinion assembly, and a cartridge assembly. The drum is used to wind the hoist cable or the drag cable. The pedestal supports the drum and surrounds a bull gear attached to the drum. A pinion of the pinion assembly extends within a port in the pedestal to engage the bull gear. The cartridge assembly is attached to the pedestal and includes an electric motor having a shaft extending from the motor, and a gear reduction coupled to the motor shaft. The pinion assembly is driven by the motor via the gear reduction. The pedestal allows the pinion assembly and other components to be removed or installed, without entirely separating the cartridge assembly from the pedestal.

Abstract: A self-destruction document or e-mail massaging system is provided that automatically destroys documents or e-mail messages at a predetermined time by attaching a “virus” to the document or e-mail message. A virus in the form of a Trojan horse is attached to file (such as an e-mail message or document) when it is created. The virus contains a portion of executable code or an executable program which instructs the computer to overwrite and/or delete the file to which the virus is attached at a desired time. Since the virus is attached to the file, it will travel with the file even when the file is copied, forwarded, or saved to disks or tape drives.

Abstract: A self-destructing document or e-mail messaging system is provided that automatically destroys documents or e-mail messages at a predetermined time by attaching a “virus” to the document or e-mail message. A virus in the form of a Trojan horse is attached to file (such as an e-mail message or document) when it is created. The virus contains a portion of executable code or an executable program which instructs the computer to overwrite and/or delete the file to which the virus is attached at a desired time. Since the virus is attached to the file, it will travel with the file even when the file is copied, forwarded, or saved to disks or tape drives.