US3851869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotatable chuck for supporting elongate work piece
Assignee: W.J. Savage Co Inc
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Filing: 1973-07-18
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Granted: 1974-12-03
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Expires: 1993-07-18
Abstract
Abstract A chuck for holding a piece of work during a sawing operation. The work accommodated may be of any desired shape and of a size from about 12 inches to about 40 inches in diameter. The chuck includes a segmental ring mounted for rotation and carrying jaws with work holders that engage the work on different sides to hold it in place during the cutting operation. The segmental ring includes a section pivotally mounted so as to be opened for introducing the work through the open top into the chuck. Bearing means are provided for rotation of the segmental ring, including tracks and spaced rollers. Locking devices are provided for holding the segmental ring and jaws in fixed positions.
Inventors
- 👤 M Damewood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:33
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/72; B23Q1/76; B23Q1/763
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
118 words
A chuck for an elongated work piece, comprising a support, a ring mounted on the support, means on the ring including jaws mounted for engagement with the work piece, said ring including a body portion and segment detachably mounted thereon for opening movement with respect to the body portion of the ring for insertion and removal of a work piece in the ring, and means carried by said support for circumferentially engaging and supporting the body portion and the segment of the ring for rotation relative thereto, at least a portion of said engaging and supporting means being adjustable radially of the ring, and means independent of the engaging and supporting means for driving said ring in rotation.
Claim 2
Dependent Claim
118 words
A chuck for an elongated work piece, comprising a support, a ring mounted on the support, means on the ring including jaws mounted for engagement with the work piece, said ring including a body portion and segment detachably mounted thereon for opening movement with respect to the body portion of the ring for insertion and removal of a work piece in the ring, and means carried by said support for circumferentially engaging and supporting the body portion and the segment of the ring for rotation relative thereto, at least a portion of said engaging and supporting means being adjustable radially of the ring, and means independent of the engaging and supporting means for driving said ring in rotation.
Claim 3
Dependent Claim
55 words
A chuck according to claim 1, including a movable support section having the ring segment mounted thereon, means operatively connected with the support section for opening and closing the ring segment, and means connected with the support section for securing the ring segment in closed relation with respect to the body portion of the ring.
Claim 4
Dependent Claim
51 words
A chuck according to claim 1, including at least one track secured to the periphery of the ring, each track having a peripheral bearing surface, and the radially adjustable means including circumferentially spaced rollers on the support in bearing relation with each track bearing surface and mounting the ring for rotation.
Claim 5
Dependent Claim
33 words
A chuck according to claim 3, wherein each track includes a body portion extending throughout the circumference of the ring body portion and a segment extending throughout the length of the ring segment.
Claim 6
Dependent Claim
23 words
A chuck according to claim 4, wherein each track body portion and track segment have overlapping eNds providing a substantially continuous bearing surface.
Claim 7
Dependent Claim
113 words
A chuck for an elongated work piece comprising a support pedestal including upright side plates having a support section pivotally mounted thereon for swinging movement to an open position to receive a work piece in the chuck, a ring extending between the end plates including a body portion and a segment, bearing means carried by the side plates and support section and mounting the ring thereon for turning movement about an axis, work holding means carried by the ring for supporting the work in the chuck, at least a portion of said bearing means being adjustable radially of the ring, and means independent of the bearing means for driving said ring in rotation.
Claim 8
Dependent Claim
113 words
A chuck for an elongated work piece comprising a support pedestal including upright side plates having a support section pivotally mounted thereon for swinging movement to an open position to receive a work piece in the chuck, a ring extending between the end plates including a body portion and a segment, bearing means carried by the side plates and support section and mounting the ring thereon for turning movement about an axis, work holding means carried by the ring for supporting the work in the chuck, at least a portion of said bearing means being adjustable radially of the ring, and means independent of the bearing means for driving said ring in rotation.
Claim 9
Dependent Claim
72 words
A chuck according to claim 6, wherein the ring has one or more tracks on the periphery thereof, each track including a body portion secured to the body portion of the ring and a segment secured to the segment of the ring, the track having an outer bearing surface, and rollers spaced circumferentially of the ring and mounted on the support pedestal for supporting the ring and the work during rotary movement.
Claim 10
Dependent Claim
126 words
A chuck for an elongated work piece comprising a support pedestal including upright side plates having a support pedestal including upright side plates having a support section pivotally mounted thereon for swinging movement to an open position to receive a work piece in the chuck, a ring extending between the end plates including a body portion and a segment, bearing means carried by the side plates and support section and mounting the ring thereon for turning movement about an axis, work holding means carried by the ring for supporting the work in the chuck, a pair of tracks spaced apart axially and having peripheral converging bearing surfaces, and rollers spaced apart circumferentially of the ring in positions for bearing relation with the surface of each track.
Claim 11
Dependent Claim
126 words
A chuck for an elongated work piece comprising a support pedestal including upright side plates having a support pedestal including upright side plates having a support section pivotally mounted thereon for swinging movement to an open position to receive a work piece in the chuck, a ring extending between the end plates including a body portion and a segment, bearing means carried by the side plates and support section and mounting the ring thereon for turning movement about an axis, work holding means carried by the ring for supporting the work in the chuck, a pair of tracks spaced apart axially and having peripheral converging bearing surfaces, and rollers spaced apart circumferentially of the ring in positions for bearing relation with the surface of each track.
Claim 12
Dependent Claim
23 words
A chuck according to claim 8, including means for adjusting at least some of the rollers toward and from the adjacent track surface.
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) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |