US3571981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bar feeding apparatus for centerless grinding machines
Assignee: Acme Manufacturing Co Inc
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Filing: 1969-04-17
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Granted: 1971-03-23
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Expires: 1989-04-17
Abstract
Abstract The bar supporting rolls are journaled in yoke members mounted on carrier beams extending on opposite sides of a main supporting beam. The rolls carried by each carrier beam engage the under peripheral surface of the bars at points spaced 45* circumferentially from the vertical plane passing through the axis of the bar. Screwjacks are provided to move the main beam vertically. Additional screwjacks are provided for moving the carrier beams transversely of the main beam. The movements of the main beam and the carrier beams are linear. A motor serves as a common power source to operate all of the screwjacks in unison, imparting transverse movement of each carrier beam equal to the vertical movement of the main beam, whereby the 90* contact spacing of the rolls with the bars is maintained for bars of all diameters. Means is provided for adjusting each yoke member relative to the carrier beam toward and from the axis of the bars to compensate for war on the rolls.
Inventors
- 👤 Robert L Schaller
- 👤 James M Magistro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:46
CPC Classifications
B; B24; B24B; B24B5/00; B24B5/18; B24B5/307; B24B41/00; B24B41/06; B24B5/35; B24B5/355
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
195 words
Apparatus for supporting and moving bars axially on a predetermined pass line in centerless grinding machines comprising a base, an elongated support beam mounted on said base for vertical movement toward and from said pass line, a first series of roll-supporting units mounted on said support beam and spaced therealong adjacent one side edge thereof, a second series of roll-supporting units spaced along said beam adjacent the opposite side thereof, a bar-supporting roll journaled in each of said roll-supporting units, the roll-supporting units of each of said series being fixedly interconnected and movable in unison transversely of said beam toward and from the vertical plane intersecting said pass line, support beam screwjack means operable to move said support beam vertically, screwjack means operatively connected to each of said series of roll-supporting units and operable to move the same transversely of said support beam, a common power drive means connected to both of said screwjack means for operation thereof in unison, said screwjack means connected to each of said series of roll-supporting units effecting movement thereof a distance equal to the distance of the vertical movement of said support beam by said support beam screwjack means.
Claim 2
Dependent Claim
195 words
Apparatus for supporting and moving bars axially on a predetermined pass line in centerless grinding machines comprising a base, an elongated support beam mounted on said base for vertical movement toward and from said pass line, a first series of roll-supporting units mounted on said support beam and spaced therealong adjacent one side edge thereof, a second series of roll-supporting units spaced along said beam adjacent the opposite side thereof, a bar-supporting roll journaled in each of said roll-supporting units, the roll-supporting units of each of said series being fixedly interconnected and movable in unison transversely of said beam toward and from the vertical plane intersecting said pass line, support beam screwjack means operable to move said support beam vertically, screwjack means operatively connected to each of said series of roll-supporting units and operable to move the same transversely of said support beam, a common power drive means connected to both of said screwjack means for operation thereof in unison, said screwjack means connected to each of said series of roll-supporting units effecting movement thereof a distance equal to the distance of the vertical movement of said support beam by said support beam screwjack means.
Claim 3
Dependent Claim
32 words
Apparatus as defined in claim 1, wherein said roll-supporting units in each of said series are mounted on an elongated carrier beam member mounted on said support beam for movement transversely thereof.
Claim 4
Dependent Claim
38 words
Apparatus as defined in claim 1, wherein said bar-supporting rolls in each of said roll-supporting units is journaled in a yoke member, and means for adjusting each of said yoke members individually toward and from said pass line.
Claim 5
Dependent Claim
49 words
Apparatus as defined in claim 1, wherein each of said roll-supporting units includes a yoke member, said rolls being journaled in said yoke members, said yoke members being spaced along an elongated carrier beam member, and means for adjusting said yoke members Individually toward and from said carrier beam.
Claim 6
Dependent Claim
134 words
Apparatus for supporting and moving bars axially on a predetermined pass line in centerless grinding machines comprising a base, an elongated support beam mounted on said base for vertical movement toward and from said pass line, a carrier beam extending in juxtaposition to each side edge of said support beam, said carrier beams being affixed to brackets slidably mounted on said support beam for movement transversely thereof, a series of yoke members mounted on each of said carrier beams, a bar-supporting roll journaled in each of said yoke members, each of said yoke members being mounted on said carrier beams for adjustment about an axis inclined toward and intercepting said pass line, means interconnecting the yoke members mounted on each of said carrier beams for rotating said yoke members about said axis in unison.
Claim 7
Dependent Claim
134 words
Apparatus for supporting and moving bars axially on a predetermined pass line in centerless grinding machines comprising a base, an elongated support beam mounted on said base for vertical movement toward and from said pass line, a carrier beam extending in juxtaposition to each side edge of said support beam, said carrier beams being affixed to brackets slidably mounted on said support beam for movement transversely thereof, a series of yoke members mounted on each of said carrier beams, a bar-supporting roll journaled in each of said yoke members, each of said yoke members being mounted on said carrier beams for adjustment about an axis inclined toward and intercepting said pass line, means interconnecting the yoke members mounted on each of said carrier beams for rotating said yoke members about said axis in unison.
Claim 8
Dependent Claim
43 words
Apparatus as set forth in claim 5, wherein said yoke members are journaled in socket members mounted on said carrier beams, and means for adjusting said socket members relative to said carrier beams on said inclined axis toward and from said pass line.
Claim 9
Dependent Claim
55 words
Apparatus as set forth in claim 5, wherein said yoke members are journaled in socket members mounted on said carrier beams, and means for adjusting said socket members relative to said carrier beams on said inclined axis toward and from said pass line, and means for detachably mounting said socket members on said carrier beams.
References Cited (Backward Citations)
US2754640A
Cited
US2775077A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-22 | 1974-09-21 | 1975-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-22 | 1978-09-21 | 1979-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-22 | 1982-09-21 | 1983-03-23 | $7700.00 | Window Closed / Lapsed |