US3776289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting tool holder
Assignee: OLIVER MACHINERY CO US
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Filing: 1972-05-18
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Granted: 1973-12-04
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Expires: 1992-05-18
Abstract
Abstract A plurality of cutting members are individually and detachably mounted on a rotatable drum and arranged in spaced and staggered helical rows. Each cutting member is a separate blade having multiple cutting edges and an indexing block. A seating block engaging the indexing block indexes the cutting blade with the proper projection to engage the work as the drum is rotated. The seating block also indexes the cutting edge to make a linear ''''plane'''' on the work surface and permits blade sharpening to be done by a cutting tool operable in a direction parallel to the drum axis. A pin projects from the seating block into a precisely located index hole to control the height of projection of the blade. The pressure lock for the blade acts directly on the blade. The cutting member and indexing block are permanently attached by offsetting a portion of the block into an opening in the blade.
Inventors
- 👤 C Boboltz
- 👤 F Zwald
- 👤 R Baldwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:32
CPC Classifications
B; B27; B27G; B27G13/00; B27G13/02; B27G13/04; Y; Y10; Y10T; Y10T407/00; Y10T407/19; Y10T407/1906; Y10T407/1932; Y10T407/1934; Y10T407/1938; Y10T407/1952; Y10T407/1956; Y10T407/1958; Y10T407/23
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
124 words
AN IMPROVED ASSEMBLY FOR DETACHABLY MOUNTING A CUTTING MEMBER TO A ROTATABLE DRUM, SAID CUTTING MEMBER HAVING A CUTTING EDGE PROJECTING BEYOND THE PERIPHERY OF SAID DRUM IN A WORK ENGAGING POSITION, SAID DRUM HAVING A SOCKET FOR RECEIPT OF SAID CUTTING MEMBER, THE IMPROVEMENT COMPRISING: SAID SOCKET HAVING A RECESS EXTENDING INTO SAID DRUM FROM THE SIDEWALL OF SAID SOCKET; A SEATING ELEMENT HAVING A SEAT THEREON FOR POSITIONING SAID CUTTING MEMBER AND CUTTING EDGE RELATIVE TO SAID SEATING ELEMENT AND AN OUTER SURFACE FOR ENGAGING A PORTION OF SAID SOCKET WALL, AND AN INDEX PIN EXTENDING BEYOND SAID OUTER SURFACE INTO SAID SOCKET RECESS FOR AUTOMATICALLY INDEXING SAID SEATING ELEMENT AND SPACING SAID SEAT WITH RESPECT TO THE SURFACE OF SAID DRUM.
Claim 2
Dependent Claim
124 words
AN IMPROVED ASSEMBLY FOR DETACHABLY MOUNTING A CUTTING MEMBER TO A ROTATABLE DRUM, SAID CUTTING MEMBER HAVING A CUTTING EDGE PROJECTING BEYOND THE PERIPHERY OF SAID DRUM IN A WORK ENGAGING POSITION, SAID DRUM HAVING A SOCKET FOR RECEIPT OF SAID CUTTING MEMBER, THE IMPROVEMENT COMPRISING: SAID SOCKET HAVING A RECESS EXTENDING INTO SAID DRUM FROM THE SIDEWALL OF SAID SOCKET; A SEATING ELEMENT HAVING A SEAT THEREON FOR POSITIONING SAID CUTTING MEMBER AND CUTTING EDGE RELATIVE TO SAID SEATING ELEMENT AND AN OUTER SURFACE FOR ENGAGING A PORTION OF SAID SOCKET WALL, AND AN INDEX PIN EXTENDING BEYOND SAID OUTER SURFACE INTO SAID SOCKET RECESS FOR AUTOMATICALLY INDEXING SAID SEATING ELEMENT AND SPACING SAID SEAT WITH RESPECT TO THE SURFACE OF SAID DRUM.
Claim 3
Dependent Claim
78 words
The improVed assembly according to claim 1 wherein there are provided a cutting blade and a locking block both receivable in said socket; said seating element and locking block having complementary faces inclined outwardly toward said index pin; said cutting blade received between said seating element and said locking block with a portion thereof resting on said seat; means to shift said locking block relative to said seating element to clamp said cutting blade between said complementary faces.
Claim 4
Dependent Claim
63 words
The improved assembly according to claim 2 wherein said portion of said cutting blade is an index block projecting from one face thereof; said locking block having a channel in its complementary face, the depth of said channel being greater than the thickness of said index block whereby none of the clamping pressure for securing said blade is applied to said index block.
Claim 5
Dependent Claim
79 words
The improved assembly for detachably mounting a cutting member described in claim 1 wherein there is provided a cutting blade and a locking block both receivable in said socket; said cutting blade having an index block resting on said seat and means for shifting said locking block to clamp said blade between it and said seating element, one of said seating element and said locking block being so shaped that said clamping pressure is applied only to said blade.
Claim 6
Dependent Claim
40 words
The improved assembly for detachably mounting a cutting member described in claim 4 wherein said cutting blade has an aperture and a portion of said index block is offset into said aperture to secure together said blade and index block.
Claim 7
Dependent Claim
33 words
The improved assembly for detachably mounting a cutting member described in claim 5 wherein said aperture is rectangular to prevent relative rotational displacement of said cutting blade with respect to said index block.
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) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |