Abstract: An animal identification tag assembly comprising an identification member and an attachment member. The identification member is mounted on the upper surface of the ear with a base portion supported on the upper surface and an identification portion extending upwardly from the base portion. The attachment member is mounted beneath the ear with a base portion abutting the lower inner surface of the ear and an attachment portion extending through the ear into retaining association with the identification member.

Abstract: 47. A device for firing a projectile from a firing position comprising:A barrel for guiding the projectile from the device,Firing means operatively associated with the projectile in the firing position and being operative to fire the projectile through the barrel and being mounted in spaced relationship to the barrel,Said firing means comprising an air cylinder and a firing chamber and an air flow passage connecting said cylinder to said firing chamber,One of said barrel and said firing means being axially movable relative to the other between a firing position and a loading position,A separate movable connecting member mounted between and in line with said barrel and said firing means and connecting said barrel to said firing means in the firing position,And means for moving said member transversely between the firing position in line with said barrel and a loading position spaced outwardly therefrom.

Abstract: In mechanical filters, structure is provided for mounting a string-like member in closely spaced relation to its moving filter medium. At least one pick mounted on a rotating shaft is provided for periodically plucking the string-like member so that the string-like member vibrates against the filter medium. A rod mounted perpendicular to the path of movement of the filter medium past the string-like member acts as a guide to prevent the pick from catching the string-like member and controls the vibration of the string-like member in a plane substantially perpendicular to the path of movement of the filter medium thereby to obtain the most effect of the impact. The vibration or slapping of the string-like member against the filter medium causes filter cake formed thereon to be detached therefrom or to be compacted. In a belt-type of drum filter, the string-like member is preferably located between the breaker and discharge rolls.