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US 4,223,432 AGranted
Shim bundle and method of making the same
AssigneeCarr Cedar Products, Inc.
InventorCharles E. Carr
Life of this patent
Estimating the term…
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AssigneeCarr Cedar Products, Inc.
InventorCharles E. Carr
Estimating the term…
Several courses of random width, low-grade tapered wood shingles are stacked in an elongated trough with the butts of shingles of adjacent courses disposed at opposite sides of the trough to form a substantially continuous stacked shingle lay-up. A cutoff saw consecutively cuts loose packs of shingles from an end portion of the lay-up. After each pack-cutting operation, the lay-up is shifted lengthwise of the trough to a position for the saw to cut another pack from the lay-up. Each severed pack is banded about its center to form a bundle, moved lengthwise partway through a gang saw to form a set of parallel kerfs spaced apart uniformly widthwise of the bundle and extending from an end of the bundle almost up to the band and then turned end-for-end and moved lengthwise partway through the gang saw to form another set of kerfs extending from the other end of the bundle almost up to the band. The kerfs of the two sets of kerfs are in registration. In use, the bundle band is severed and the kerfed shingles may be separated into narrow individual builder's shims by breaking the short shingle portions between oppositely extending registered kerfs.
The method of forming a bundle of shims which comprises, in sequence:
The method of forming bundles of shims of a desired width which comprises:
The method of manufacturing a bundle of shims which comprises:
In a method of forming a bundle of shim stock pieces, the improvement which comprises stacking shim stock pieces to form a shim stock lay-up, cutting a loose pack of shim stock pieces from an end portion of the lay-up, and banding the pack transversely of its length to form a bundle.
The method of manufacturing a bundle of shims from a pack of several wood shingles each tapered lengthwise of its grain and having its grain extending generally in the same direction as the grain of each of the other shingles, such pack having several overlapping courses of shingles and being banded transversely of the grain in the area of overlap for forming a banded shingle bundle, which comprises forming a plurality of substantially parallel kerfs extending lengthwise of a spaced apart transversely of the grain from an end of the banded shingle bundle toward but not through the shingle bundle band for forming registered kerfs in the several courses of shingles but leaving the kerfed shingle courses banded together by the shingle bundle band.
Dependencies are inferred from the claim text.