US3648743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Equipment for longitudinally cutting tree logs
Assignee: Individual
•
Filing: 1970-01-14
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Granted: 1972-03-14
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Expires: 1990-01-14
Abstract
Abstract An equipment for longitudinally cutting tree logs comprising, in combination with a cutting machine tool, a log supporting carriage having means for individually displacing the log ends in order to cause the log axis to be positioned in coincidence with a predetermined line which defines a cutting tool half-plane, and means to rotate the supported log. Said combination allows to carryout a log cutting operation into three 120* sectors, two optical systems being provided for better positioning said log axis before each cutting operation.
Inventors
- 👤 Michele Fino
- 👤 Giorgio Giussani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:48
CPC Classifications
B; B27; B27B; B27B7/00; B27B1/00; B27B1/005; B27B29/00; B27B29/08; B27B29/085; B27B31/00; B27B31/06; Y; Y10; Y10T; Y10T83/00; Y10T83/647; Y10T83/654; Y10T83/6568
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
321 words
Equipment for longitudinally cutting a tree log into sectors in which the tree log is cut along planes extending radially outwardly from a straight line with which the axis of the heartwood of the log to be cut is made to coincide, the cutting planes of the tree log being angularly spaced apart by an angle greater than 90* and smaller than 180*, comprising an automatic cutting device for effecting the longitudinal cuts through the log, said cutting device being adjustable for positioning on the straight line with which the axis of the heartwood of the log coincides, a supporting and positioning assembly for locating the tree log in position to be cut by said cutting device and for moving the tree log during the cutting operation, wherein the improvement comprises that said supporting and positioning assembly comprises a horizontally arranged base frame, bearing wheels mounted on said base frame and arranged for moving said base frame along a line parallel to the straight line with which the axis of the heartwood of the log coincides, a supporting plate movably displaceably mounted on said base frame for movement in a direction upwardly from said base frame so that the opposite ends thereof can be positioned at different heights relative to said base frame, a guide positioned on said supporting plate adjacent each of its opposite ends, a supporting element movably mounted on each said guide for movement in a horizontal direction substantially normally of the direction of travel of said base frame, a pair of rollers mounted on and extending upwardly from each supporting element for supporting a tree log, said rollers being spaced apart and being rotatable in opposite directions, and means for imparting a relative motion between the log to be cut and said cutting device for moving the log in a direction parallel to the straight line with which the axis of the heartwood of the log coincides.
Claim 2
Dependent Claim
321 words
Equipment for longitudinally cutting a tree log into sectors in which the tree log is cut along planes extending radially outwardly from a straight line with which the axis of the heartwood of the log to be cut is made to coincide, the cutting planes of the tree log being angularly spaced apart by an angle greater than 90* and smaller than 180*, comprising an automatic cutting device for effecting the longitudinal cuts through the log, said cutting device being adjustable for positioning on the straight line with which the axis of the heartwood of the log coincides, a supporting and positioning assembly for locating the tree log in position to be cut by said cutting device and for moving the tree log during the cutting operation, wherein the improvement comprises that said supporting and positioning assembly comprises a horizontally arranged base frame, bearing wheels mounted on said base frame and arranged for moving said base frame along a line parallel to the straight line with which the axis of the heartwood of the log coincides, a supporting plate movably displaceably mounted on said base frame for movement in a direction upwardly from said base frame so that the opposite ends thereof can be positioned at different heights relative to said base frame, a guide positioned on said supporting plate adjacent each of its opposite ends, a supporting element movably mounted on each said guide for movement in a horizontal direction substantially normally of the direction of travel of said base frame, a pair of rollers mounted on and extending upwardly from each supporting element for supporting a tree log, said rollers being spaced apart and being rotatable in opposite directions, and means for imparting a relative motion between the log to be cut and said cutting device for moving the log in a direction parallel to the straight line with which the axis of the heartwood of the log coincides.
Claim 3
Dependent Claim
34 words
Equipment, as set forth in claim 1, wherein the periphery of said rollers is provided with a plurality of outwardly extending sharp projections for ensuring a positive engagement with the log to be cut.
Claim 4
Dependent Claim
47 words
Equipment, as set forth in claim 2, wherein means are arranged for displacing said supporting plate and said guides and rollers mounted thereon through pre-established angles in a direction perpendicular to the straight line so that said supporting plate forms an acute angle with said base frame.
Claim 5
Dependent Claim
55 words
Equipment, as set forth in claim 3, wherein said means for angularly displacing said supporting plate comprises a horizontally arranged pivot pin secured to said base frame at one end thereof, and said supporting plate being pivotally connected to said pivot pin so that its opposite end can be displaced upwardly from said base frame.
Claim 6
Dependent Claim
33 words
Equipment according to claim 1, wherein said means to impart a relative motion between the log and said cutting device comprise means to move said supporting and positioning assembly in either longitudinal directions.
Claim 7
Dependent Claim
35 words
Equipment according to claim 1, wherein optical means are provided for verifying and checking the coincidence of said straight line with the log axis, as achieved through operation of said log lifting and positioning means.
Claim 8
Dependent Claim
41 words
Equipment according to claim 6, wherein said optical means consist of reflecting and/or refracting means adapted to individually bring the images of the intersection points of log axis with the log end surfaces, as previously identified to a single checking ocular.
Claim 9
Dependent Claim
65 words
Equipment according to claim 7, wherein said reflecting and/or refracting means comprise two single optical systems having components stationarily fitted at both ends of log stroke and close to said ocular, said components showing optical properties and a mutual spatial arrangement adapted to superpose within said ocular the images of points of said straight line As separately sent to said ocular by said two systems.
Claim 10
Dependent Claim
23 words
Equipment according to claim 8, wherein said supporting and positioning assembly is operated by a control station including said verifying and checking ocular.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |