Abstract: The present invention therefore provides an improved apparatus and integrated method for producing barrel staves. The apparatus measures the profile of unfinished stave workpieces and based on the width and shape of the stave, as well as other parameters such as the type of barrel that is required, the edges of the stave are trimmed accordingly. This ensures fewer rejected staves, less waste in that the width of the unfinished stave is continuously measured across its entire length with minimum depth of cut required, and most importantly, barrel staves having extremely accurate jointed edges ensuring superior finished barrels have an internal surface that is free from undesirable spacing between the staves, utilizing less labor than hitherto known apparatus.
Type:
Grant
Filed:
May 17, 2007
Date of Patent:
May 13, 2014
Assignee:
Southern Cross Cooperage Pty Ltd.
Inventors:
Ian Roberts, John Whiting, Breck Waterman, Alan Conigrave, Graham Peacock
Abstract: A machine for making staves includes a first section and a second section with each section including components for cutting one side of a blank in a manner inclined to the blank's lengthwise axis. Conveyors on each section are equipped with lugs for propelling the blanks with each lug having a foot to support a lug engaged end of the blank against laterally applied loads imparted by wheel members. Additionally supporting each of the conveyed blanks on each section is a fence on each section with the lug foot and the fence serving to maintain the blank in a skewed position to present a displaced side edge to a cutter head. The fence on the second section additionally supports the blank against lateral loads applied in an opposite direction by wheels biasing the blank into fence and lug engagement to skew in an opposition direction. A cutter head on the second section of the machine completes shaping of the blank by cutting a second side edge inclined to the stave's lengthwise axis.