Device for lifting pieces of lumber

US4044893A · kind A · utility

Assignee

• AB Hammars Mekaniska Verkstad

Inventors

• Rolf Ekholm · Karlstad, SE
• Hans Danielsson · Helsingborg, SE

Key dates

• Filing date: Mar 29, 1976
• Grant date: Aug 30, 1977
• Expiry date: Mar 29, 1996

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65G51/01
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A lumber lifting device for pieces of lumber transversely fed into the device in an elongate soaking basin. The lifting device has a concave hoisting surface with a front edge which aligns with an inclined ramp below the water level of the basin in a first reception position to receive a piece or pieces of lumber. The lifting device is rotated less than one-half a revolution to a second dumping position above the water level of the basin to discharge the piece or pieces of lumber. A curved stopping surface is connected to the front edge of the hoisting surface to prevent pieces of lumber from interfering with the rotation of the lifting device.