144 



COOPERAGE WORKS 



Stave cylinder saw. E. & B. Holmes Machinery Co., Buffalo, N. Y. 



The core, of at least four inches diameter, containing the small limb -stubs is thrown away. 



The rough slaves are inspected and sorted and piled hogpen -fashion for air drying, either before 

 or after sledding or waggoning to the finishing plant. It might be added here that this finishing plant 

 is — contrary to expectation — never combined with a heading plant. 



(b) The "STAVE BUCKER," by which three fourths of all rived staves made in the United States are 

 refined, dresses and planes both sides of the staves to proper curvature and bilge. A rack forces the 

 rough staves through the narrow passage left between two knives (either straight knives, or curved to 

 correspond with the periphery of the finished barrel) which are fastened in a rocking frame. 



(c) The "STAVE DRESSER" frequently takes the place of the bucker. It carries knives on two cutter- 

 heads, dressing and forming the stave on both sides to proper thickness and leaving either an abrupt or 

 a gradual shoulder. 



(d) The STAVE SAW YIELDS 



slaves of equal form, but of 

 greater permeability, more eco- 

 nomically than the hand. 



Stave bolts must have the follow- 

 ing minimum dimensions: — Thickness 

 with grain 5 inches; width close to 

 heart 3 inches. 



The boUs are barked and hearted 

 in the woods, being split from logs 

 having at least a diameter of 15 inches 

 inside the bark. 



The stave saw consists of:- 



1. A hollow steel cylinder, 

 having the diameter of the 

 barrels to be made and 

 carrying saw teeth at one 

 end. 



2. A carriage with clamps 

 passing the saw cylinder. 



3. A stave holder running into 

 the cylinder and removing 

 the sawed staves. Capacity 

 12,000 staves per day. 



In 1909, ninety per cent of the 

 tight staves produced in the United 

 States were sawn staves. 



(e) In SLACK COOPERAGE, a stave 

 cutter is often used, consisting of a 

 knife 36 inches long, bent to a 20-inch 

 circle, and of a tumbler -cradle to 

 receive the bolts. The tumbler makes 

 per minute 100 to 150 rocking strokes 

 against the knife. The stave bolts are 

 steamed beforehand. The knife sepa- 

 rates, at each stroke of the tumbler, 

 a stave from the bolt. 



Capacity 140,000 per day. Price 

 j^l30. Horse-power 4. 



Stave cutter 



E. & B. Holmes Machinery Co., Buffallo, N. Y. 



