US3913729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Belt aligner
Assignee: Cambridge Wire Cloth Co
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Filing: 1972-08-11
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Granted: 1975-10-21
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Expires: 1992-08-11
Abstract
Abstract An improved belt aligner of the type having a main roller over which a continuous belt tracks, sensor rollers respectively contacting the belt edges and mounted for movement together transverse to the direction of belt travel in response to misalignment, and a pivot arm connecting the sensor roller to a member mounting the main roller so that it skews to effect realignment of the tracking belt whereby the pivot arms connecting both sensors to the mounting for the main roller extend parallel to each other and to the belt edge for maintaining the sensor rollers in continuous contact with the belt edges and whereby the main roller is mounted on a plurality of rollers at each end of the main roller for effecting simple and easy pivoting of the main roller about its center.
Inventors
- 👤 Donald E Andrews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:07
CPC Classifications
B; B65; B65G; B65G39/00; B65G39/10; B65G39/12; B65G39/16
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
344 words
A belt aligner comprising: a main roller, means for mounting said main roller so as to permit rotation thereof about a first axis, first and second edge sensor means for contacting opposite edges of a belt respectively, a base member, means pivotably mounting said main roller mounting means on said base member, means pivotably mounting said first and second sensor means on said base member downstream of said roller including sensor pivot means pivotably connecting said first and second sensor means to said base member so as to define a sensor pivot arm which pivots about a vertical axis perpendicular to said first axis for each of said sensor means, each pivot arm extending parallel to the sensor pivot arm of the other sensor means, including an arm member for each sensor means having a sensor means attached at one end and pivotably connected to said base member at the other end so as to define a pivot arm for each sensor means extending parallel to the pivot arm for the other sensor means, a further member rigidly attached to said arm member at one end to extend beneath said main roller mounting means and having a forked portion at the other end, and a downwardly extending pin engaging said forked portion for pivoting said main roller mounting means and said main roller, and pivot means connecting said main roller mounting means to said first and second sensor means for causing said main roller mounting means and main roller to pivot with respect to said base member about a second axis perpendicular to said first axis whenever one of said sensor means is pivoted by a force applied to one of said sensor means by a belt edge including means defining a roller pivot arm extending beneath said main roller mounting means and connected to said sensor pivot means, and means fixed to said main roller mounting means for engaging said pivot arm defining means to pivot said main roller mounting means as said pivot arm defining means is pivoted about said second axis.
Claim 2
Dependent Claim
344 words
A belt aligner comprising: a main roller, means for mounting said main roller so as to permit rotation thereof about a first axis, first and second edge sensor means for contacting opposite edges of a belt respectively, a base member, means pivotably mounting said main roller mounting means on said base member, means pivotably mounting said first and second sensor means on said base member downstream of said roller including sensor pivot means pivotably connecting said first and second sensor means to said base member so as to define a sensor pivot arm which pivots about a vertical axis perpendicular to said first axis for each of said sensor means, each pivot arm extending parallel to the sensor pivot arm of the other sensor means, including an arm member for each sensor means having a sensor means attached at one end and pivotably connected to said base member at the other end so as to define a pivot arm for each sensor means extending parallel to the pivot arm for the other sensor means, a further member rigidly attached to said arm member at one end to extend beneath said main roller mounting means and having a forked portion at the other end, and a downwardly extending pin engaging said forked portion for pivoting said main roller mounting means and said main roller, and pivot means connecting said main roller mounting means to said first and second sensor means for causing said main roller mounting means and main roller to pivot with respect to said base member about a second axis perpendicular to said first axis whenever one of said sensor means is pivoted by a force applied to one of said sensor means by a belt edge including means defining a roller pivot arm extending beneath said main roller mounting means and connected to said sensor pivot means, and means fixed to said main roller mounting means for engaging said pivot arm defining means to pivot said main roller mounting means as said pivot arm defining means is pivoted about said second axis.
Claim 3
Dependent Claim
90 words
A belt aligner as in claim 1 wherein said main roller pivotably mounting means includes a plurality of pivot rollers, means for mounting at least one of said pivot rollers at both end of said main roller so that said pivot rollers are free to pivot about an axis parallel to said first axis and wherein said rollers support at least in part the weight of said main roller means and said main roller mounting means and are rotated as said main roller mounting means and main roller are pivoted.
Claim 4
Dependent Claim
68 words
A belt aligner as in claim 1 wherein said main roller mounting means includes end members for each receiving an end of said main roller and a support member extending between said end members and having a downwardly extending pin and wherein said base member includes a bearing for receiving said downwardly extending pin and permitting rotation of said main roller mounting means about said downwardly extending pin.
Claim 5
Dependent Claim
24 words
A belt aligner as in claim 3 further including a turnbuckle rigidly connecting said arm members together so that said sensor means pivot together.
Claim 6
Dependent Claim
41 words
A belt aligner as in claim 3 wherein said sensor means are each a sensor roller having a grooved periphery for receiving a belt edge and wherein each said arm member mounts a sensor roller at an angle to the vertical.
Claim 7
Dependent Claim
94 words
A belt aligner as in claim 3 wherein said main roller pivotably mounTing means includes a plurality of pivot rollers means for mounting a number of said pivot rollers on said base member at each end of said base member so that said pivot rollers are each freely pivotable about an axis parallel to said first axis and so that said pivot rollers at each end engage the end member at that end so that that end member moves over the pivot rollers at that end as said main roller mounting means is pivoted.
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) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |