Abstract: A sample collecting device is provided. The sample collecting device comprises an enclosure for enclosing a collected sample therein. A connecting mechanism movable connects a sample collecting head for collecting the sample to the enclosure. The connecting mechanism holds the sample collecting head in a sampling position outside the enclosure and holds the sample collecting head in a storage position inside the enclosure. In an embodiment the sample collecting device comprises a sample access port disposed in a wall of the enclosure for enabling access to the collected sample and the enclosure is shaped such that a plurality of sample collecting devices form one of a one-dimensional and a two-dimensional array suitable for use with an automated processing machine. The sample collecting device further comprises an identifier for providing identification data to the automated processing machine.

Abstract: A drive assembly for a chain saw (10) having a brake (42) wherein lugs (102) formed integrally on the brake drum (78) are mechanically connected within opening (72) of adjacent pairs of teeth (70) on the sprocket (22) which drives the saw chain (18) so that upon application of the brake (42) the brake drum (78) and the sprocket (22) stop simultaneously. The drive assembly includes a clutch (94) and a fastener (26) threadedly received on the drive shaft (24) to complete the assembly.