SE8405405D0 - SELF-GOVERNING CASE - Google Patents

SELF-GOVERNING CASE

Info

Publication number
SE8405405D0
SE8405405D0 SE8405405A SE8405405A SE8405405D0 SE 8405405 D0 SE8405405 D0 SE 8405405D0 SE 8405405 A SE8405405 A SE 8405405A SE 8405405 A SE8405405 A SE 8405405A SE 8405405 D0 SE8405405 D0 SE 8405405D0
Authority
SE
Sweden
Prior art keywords
saw
saw blade
kerf
pack
guide
Prior art date
Application number
SE8405405A
Other languages
Swedish (sv)
Inventor
W Ask
C Sivers
Original Assignee
Vigilantia Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vigilantia Ab filed Critical Vigilantia Ab
Priority to SE8405405A priority Critical patent/SE8405405D0/en
Publication of SE8405405D0 publication Critical patent/SE8405405D0/en
Priority to PCT/SE1985/000425 priority patent/WO1986002590A1/en
Priority to EP19850905452 priority patent/EP0232271A1/en

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Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)
  • Dovetailed Work, And Nailing Machines And Stapling Machines For Wood (AREA)

Abstract

Circular saws (Fig 1), band saws (Fig. 2) or frame saws (Fig. 3) are intended for sawing straight as well as curved timber with knots and other irregularities which tend to direct the saw blade so that the kerf deviates from the desired kerf. It is known to design saw blades as a pack of at least two blades close to each other (1, 2). According to the invention the two saw blades are driven with intentionally variable relative speeds, each of them having their row of teeth (3, 4) which cannot interfere with the other row. Deviations from a wanted kerf are indicated by means of the deflections of the saw blade pack when it goes through the object to be sawn. The deviation controls the relative speeds of the saw blade halves. The saw blade which at a certain moment goes faster cuts a void towards which the pack is forced by the pressure from the teeth of the other saw blade. The method can be used on one hand to guide the saw to produce a straight kerf, on the other hand to guide the saw manually, and further to guide the saw according to a program for example to obtain planks with constant thickness from curved logs and also for joineries. It is also possible to produce chips with long fibres cheaper for fibreboard production.
SE8405405A 1984-10-29 1984-10-29 SELF-GOVERNING CASE SE8405405D0 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE8405405A SE8405405D0 (en) 1984-10-29 1984-10-29 SELF-GOVERNING CASE
PCT/SE1985/000425 WO1986002590A1 (en) 1984-10-29 1985-10-29 Method for guiding saw blades
EP19850905452 EP0232271A1 (en) 1984-10-29 1985-10-29 Method for guiding saw blades

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8405405A SE8405405D0 (en) 1984-10-29 1984-10-29 SELF-GOVERNING CASE

Publications (1)

Publication Number Publication Date
SE8405405D0 true SE8405405D0 (en) 1984-10-29

Family

ID=20357525

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8405405A SE8405405D0 (en) 1984-10-29 1984-10-29 SELF-GOVERNING CASE

Country Status (3)

Country Link
EP (1) EP0232271A1 (en)
SE (1) SE8405405D0 (en)
WO (1) WO1986002590A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10059978A1 (en) * 2000-12-02 2002-06-06 Bosch Gmbh Robert Sawing tool for a handheld circular saw
DE10059969A1 (en) * 2000-12-02 2002-06-06 Bosch Gmbh Robert Sawing tool for a handheld circular saw
SE524099C2 (en) 2001-05-16 2004-06-29 Nord Ct I Kalmar Ab Pair of saw blades
SE528019C2 (en) * 2004-12-02 2006-08-08 Indocean Diamond Tools Bermuda Saw blades and method for manufacturing a saw blade
RU2600743C1 (en) * 2015-08-05 2016-10-27 Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Северный (Арктический) федеральный университет имени М.В. Ломоносова" (САФУ) Radial saw machine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2283958A (en) * 1937-04-21 1942-05-26 Tompkins Edward De Voe Portable sawing apparatus
US2591747A (en) * 1946-07-17 1952-04-08 Tompkins Edward De Voe Dual reciprocating blade sawing apparatus
FI42467B (en) * 1961-04-05 1970-04-30 Vyzk A Vyvojovy Ustav Drevarsk
US3204674A (en) * 1962-03-12 1965-09-07 Griffwood Inc Step sawmilling with by-product chip production
US3327696A (en) * 1964-10-09 1967-06-27 Howard Aiken Ind Saw stabilizing means and method
FR2192483A5 (en) * 1972-07-07 1974-02-08 Giraud Leone

Also Published As

Publication number Publication date
EP0232271A1 (en) 1987-08-19
WO1986002590A1 (en) 1986-05-09

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