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US 3,938,418 AGranted
Circular saw blade
AssigneeGustav Wagner Maschinenfabrik
InventorRoderich Orendi
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AssigneeGustav Wagner Maschinenfabrik
InventorRoderich Orendi
Estimating the term…
This circular saw blade has a center disk and circumferential teeth segments secured to the center disk, for example, by welding. The center disk has two rows of circumferentially spaced radially outwardly extending lands. The two rows of lands are preferably axially spaced from each other by a circumferential groove. The lands in each row are circumferentially spaced by gaps, whereby the lands in one row are angularly displaced relative to the lands in the other row so that the lands in one row face the gaps in the other row. The teeth segments are provided with the same type of lands and gaps, but facing radially inwardly, whereby the lands contacting each other on both sides of the disk may be electronically welded from one side of the disk. Worn out segments may be easily removed by a cutting or grinding tool having an outer diameter somewhat smaller than the distance from one outer wall of a gap to the outer wall of the next adjacent gap.
In a circular saw blade having a center disk with a circumference and a plurality of teeth segments with radially inwardly facing edges secured to said circumference of the center disk, the improvement comprising two rows of first and second lands extending along the circumference of the center disk and two similar rows of third and fourth lands extending along the inwardly facing edges of said teeth segments, gaps between adjacent lands in each of the rows, whereby the lands are circumferentially spaced from each other, said first lands axially registering with the gaps between the second lands and vice versa, said third lands axially registering with the gaps between the fourth lands and vice versa, said first and second lands radially registering along common interfaces with the third and fourth lands, and welding seams between the lands on the center disk and the lands on the teeth segments.
Dependencies are inferred from the claim text.