WO2003023158A1 - Natural tapered house log milling process - Google Patents
Natural tapered house log milling process Download PDFInfo
- Publication number
- WO2003023158A1 WO2003023158A1 PCT/CA2001/001314 CA0101314W WO03023158A1 WO 2003023158 A1 WO2003023158 A1 WO 2003023158A1 CA 0101314 W CA0101314 W CA 0101314W WO 03023158 A1 WO03023158 A1 WO 03023158A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- log
- logs
- curvature
- diameter
- taper
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
- E04B2/70—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of wood
- E04B2/701—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of wood with integrated supporting and obturation function
- E04B2/702—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of wood with integrated supporting and obturation function with longitudinal horizontal elements
Definitions
- This invention pertains to the construction of log walls and utilizes natural tapered whole logs which are fit together and laid horizontally on top of each other.
- this type of wall construction has always been done by hand, using a chainsaw.
- a lateral notch also known as a groove or cope, is cut with a chainsaw from the underside or belly of each log, and runs the full length of each wall log.
- This is an extremely heavy, labour intensive and repetitive task.
- This invention will eliminate the time-consuming hard labour involved, but will still result in the hand-crafted look of tapered log walls.
- the art and craft of building with natural logs continues to gain appeal, and removing this labour intensive aspect of the construction will allow time for log builders to focus more on innovative and creative hand-crafted corner notches and other details unique to their own style of building.
- United States Patent No. 4,312,161 to Goldade teaches the shaping of elongate cylindrical structural members for their interfitting in the construction of walls or similar structures. This provides an example of machine profiled timbers that have been cut from whole logs.
- FIG. 1 is a perspective view of a section of log wall illustrating the natural taper of the logs as they lay, alternating a butt 11 (largest diameter of a log) with a tip 12 (smallest diameter of a log) and achieving level every 2 rounds (a "round” is a single layer of logs around the complete perimeter of a building).
- FIG.2 is an end view of a log wall illustrating the alternating butts 11 and tips 12 of logs and indicating common curvature 13, matching the milled convex surface of the top of each log to the milled concave surface on the underside of the log above it.
- FIG.3 is an enlarged end view of a log wall illustrating the use of a common curvature 13 on various diameters of logs resulting in the exact matching of convex to concave surfaces, joining log to log and illustrating the amount of wood removal in the process: from the underside of a log 14 and from the top side of a log 15.
- This process utilizes a machine to create the lateral notch, also known as a groove or cope, on the underside of a house building log and to mill a matching convex surface on the top of each log, creating walls that maintain the natural taper of each whole log used (refer to FIG.1 ).
- the convex curvature of the top of each log will be milled to match the concave curvature on the bottom of the log sitting directly above it, using a common curvature 13 for specified diameters.
- a 16 inch diameter curvature is defined as being equal to any portion of the perimeter of a 16 inch circle.
- a 10 inch diameter curvature equals any portion of the perimeter of a 10 inch circle; refer to FIG.3 13.
- the key factor in this process is to use logs of similar taper and mill them to exactly the same degree of taper. This is accomplished by positioning the log that is to be milled so that the top surface is on a horizontal plane. The concave groove is then cut into that surface. The log is then mechanically rotated 180 degrees so the opposite surface of the log is on top. Once again, hydraulic lifters and laser levellers position the log so that the top surface is essentially on a horizontal plane, with the log held in position so that the planing process results in creating the identical degree of taper in every log. A matching convex curvature is then milled on this surface.
- level wall height is achieved every 2 rounds* (refer to FIG.l); this is contingent upon logs being stacked so that, at each end of the wall being built, a butt 11 (or largest diameter of a log) alternates with a tip 12 (or smallest diameter of a log); refer to FIG.1.
- a natural tapered house log milling machine would be designed so that the machine head would move down the length of the log, as opposed to the equipment being stationary and the log being turned and moved. This would enable logs of up to 55 feet in length to be milled.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Load-Bearing And Curtain Walls (AREA)
- Artificial Fish Reefs (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT01971566T ATE298021T1 (en) | 2001-09-13 | 2001-09-13 | MILLING PROCESS FOR PRODUCING NATURAL, TAPERING TRUNKS FOR LOG HOUSES |
JP2003527209A JP2005501990A (en) | 2001-09-13 | 2001-09-13 | Natural log grinding method for tapered houses |
EP01971566A EP1444409B1 (en) | 2001-09-13 | 2001-09-13 | Natural tapered house log milling process |
US10/488,873 US20040237457A1 (en) | 2001-09-13 | 2001-09-13 | Natural tapered house log milling process |
PCT/CA2001/001314 WO2003023158A1 (en) | 2001-09-13 | 2001-09-13 | Natural tapered house log milling process |
CA002459444A CA2459444C (en) | 2001-09-13 | 2001-09-13 | Natural tapered house log milling process |
DE60111579T DE60111579T2 (en) | 2001-09-13 | 2001-09-13 | MILLING PROCESS FOR PRODUCING NATURAL, REINIGENT TREE BARS FOR BLOCK HOUSES |
EP05102362A EP1566500A1 (en) | 2001-09-13 | 2001-09-13 | Natural tapered house log milling process |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CA2001/001314 WO2003023158A1 (en) | 2001-09-13 | 2001-09-13 | Natural tapered house log milling process |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003023158A1 true WO2003023158A1 (en) | 2003-03-20 |
Family
ID=4143163
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CA2001/001314 WO2003023158A1 (en) | 2001-09-13 | 2001-09-13 | Natural tapered house log milling process |
Country Status (7)
Country | Link |
---|---|
US (1) | US20040237457A1 (en) |
EP (2) | EP1444409B1 (en) |
JP (1) | JP2005501990A (en) |
AT (1) | ATE298021T1 (en) |
CA (1) | CA2459444C (en) |
DE (1) | DE60111579T2 (en) |
WO (1) | WO2003023158A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2472614C2 (en) * | 2010-12-14 | 2013-01-20 | Валерий Петрович Чулков | Making log house using log machining |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE548733A (en) * | ||||
CA918882A (en) * | 1970-02-24 | 1973-01-16 | Maskuta Properties Ltd. | Log of natural taper for prefabricated structures |
US4312161A (en) | 1979-02-28 | 1982-01-26 | Goldade Sebastian M | Log-joint system |
US4510724A (en) | 1981-10-13 | 1985-04-16 | Karl Magnuson | Building structure |
US4903447A (en) | 1988-05-16 | 1990-02-27 | Mcdade Paul R | Log profile and log structure incorporating said log profile |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2525659A (en) * | 1948-10-12 | 1950-10-10 | Building Logs Inc | Building log |
US3863409A (en) * | 1972-12-11 | 1975-02-04 | Charles Raymond Fell | Log cabin structure |
US3951187A (en) * | 1975-04-24 | 1976-04-20 | Finis Lavell Chisum | Machine to prepare logs for log houses |
US4067368A (en) * | 1976-04-20 | 1978-01-10 | Beecroft William K | Cabin log shaper |
US4147000A (en) * | 1977-10-31 | 1979-04-03 | Lewandowski Robert E | Insulated log building structure |
JPS5496214A (en) * | 1978-01-14 | 1979-07-30 | Kaneto Saito Mokuzai Kk | Method of building house of logs |
US4167961A (en) * | 1978-04-13 | 1979-09-18 | New England Log Homes, Inc. | Planer and groover |
JPS611748A (en) * | 1984-06-12 | 1986-01-07 | 秋田 恭志 | Constitution of building by connecting log materials |
US4951435A (en) * | 1989-01-17 | 1990-08-28 | Lloyd Beckedorf | Log building construction |
JPH05141022A (en) * | 1991-11-21 | 1993-06-08 | Yoshinori Okura | Construction for wall body for structure |
US5718091A (en) * | 1996-03-25 | 1998-02-17 | Sellers; Jonathan S. | Construction of a log cabin |
US6023895A (en) * | 1997-06-24 | 2000-02-15 | Anderson; Theodore W. | Log interface and log walls and buildings constructed therefrom |
US5878800A (en) * | 1998-01-23 | 1999-03-09 | Young; Ralph C. | Rectangular opening box cutting apparatus |
US6070376A (en) * | 1998-09-03 | 2000-06-06 | Asper; William D. | Interfitting wooden and log walls |
US6412241B1 (en) * | 2000-03-02 | 2002-07-02 | Robert W. Chambers | Accelerated log building method |
US6564526B2 (en) * | 2000-03-02 | 2003-05-20 | Accelerated Log Building, Inc. | Accelerated log building method |
-
2001
- 2001-09-13 WO PCT/CA2001/001314 patent/WO2003023158A1/en active IP Right Grant
- 2001-09-13 JP JP2003527209A patent/JP2005501990A/en active Pending
- 2001-09-13 DE DE60111579T patent/DE60111579T2/en not_active Expired - Fee Related
- 2001-09-13 AT AT01971566T patent/ATE298021T1/en not_active IP Right Cessation
- 2001-09-13 CA CA002459444A patent/CA2459444C/en not_active Expired - Fee Related
- 2001-09-13 US US10/488,873 patent/US20040237457A1/en not_active Abandoned
- 2001-09-13 EP EP01971566A patent/EP1444409B1/en not_active Expired - Lifetime
- 2001-09-13 EP EP05102362A patent/EP1566500A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE548733A (en) * | ||||
CA918882A (en) * | 1970-02-24 | 1973-01-16 | Maskuta Properties Ltd. | Log of natural taper for prefabricated structures |
US4312161A (en) | 1979-02-28 | 1982-01-26 | Goldade Sebastian M | Log-joint system |
US4510724A (en) | 1981-10-13 | 1985-04-16 | Karl Magnuson | Building structure |
US4903447A (en) | 1988-05-16 | 1990-02-27 | Mcdade Paul R | Log profile and log structure incorporating said log profile |
Also Published As
Publication number | Publication date |
---|---|
US20040237457A1 (en) | 2004-12-02 |
JP2005501990A (en) | 2005-01-20 |
DE60111579D1 (en) | 2005-07-21 |
EP1444409A1 (en) | 2004-08-11 |
CA2459444A1 (en) | 2003-03-20 |
EP1566500A1 (en) | 2005-08-24 |
EP1444409B1 (en) | 2005-06-15 |
CA2459444C (en) | 2007-01-23 |
DE60111579T2 (en) | 2006-05-04 |
ATE298021T1 (en) | 2005-07-15 |
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