US3713642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manually controlled cloth laying machine carriage
Assignee: Cutting Room Appliances Corp
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Filing: 1970-12-02
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Granted: 1973-01-30
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Expires: 1990-12-02
Abstract
Abstract A manually controlled electric motor powered cloth laying carriage having control stations at each longitudinal end thereof, each station including a rotatably mounted grip having an eccentric portion interconnected to an elongated link, the opposite ends of said links being connected to eccentrically disposed parts of a large gear. The gear is mounted on a shaft carried by the carriage, resilient means associated with the gear returning the links to predetermined position in the absence of manually imparted torque applied to either grip. A rotary potentiometer is mechanically connected to said gear by a pinion on the shaft of the potentiometer to determine the amount of current flowing to the drive motor as a function of rotation of either grip. Each link carries switch actuating means individually cooperating with one of a pair of switches which close, depending upon which grip is rotated. The switches may be connected in parallel to be used in conjunction with separate direction-indicating switches, or in such manner as to reverse the polarity of current flowing through the motor, in addition to supplying current to the potentiometer.
Inventors
- 👤 S Paterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:52
CPC Classifications
B; B65; B65H; B65H45/00; B65H45/02; B65H45/06; B65H45/10; B65H45/101
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
201 words
In a manually controlled electrically powered cloth laying carriage having first and second control stations at either longitudinal ends thereof, each station selectively controlling the direction and speed of movement of said carriage, the improvement comprising: each of said first and second stations having a twist grip means having a principal axis and being adapted for rotation about its own axis, said grip means having an eccentric portion thereon, first and second elongated link means interconnected to said eccentric portions at one end thereof, a gear carried by said carriage, the inner ends of said link means being interconnected to opposed portions of said gear; a torsion spring means operating on said gear, and tending to return said link means to predetermined position in the absence of manually exerted torque upon either of said grip means, and potentiometer means carried by said carriage having a shaft driven by said gear; at least one of said link means having switch actuating means thereon, and a pair of switches carried by said carriage and positioned to be selectively contacted by movement of said link means in a given direction, each of said switches being electrically connected to a relay means powering said potentiometer.
Claim 2
Dependent Claim
201 words
In a manually controlled electrically powered cloth laying carriage having first and second control stations at either longitudinal ends thereof, each station selectively controlling the direction and speed of movement of said carriage, the improvement comprising: each of said first and second stations having a twist grip means having a principal axis and being adapted for rotation about its own axis, said grip means having an eccentric portion thereon, first and second elongated link means interconnected to said eccentric portions at one end thereof, a gear carried by said carriage, the inner ends of said link means being interconnected to opposed portions of said gear; a torsion spring means operating on said gear, and tending to return said link means to predetermined position in the absence of manually exerted torque upon either of said grip means, and potentiometer means carried by said carriage having a shaft driven by said gear; at least one of said link means having switch actuating means thereon, and a pair of switches carried by said carriage and positioned to be selectively contacted by movement of said link means in a given direction, each of said switches being electrically connected to a relay means powering said potentiometer.
Claim 3
Dependent Claim
201 words
In a manually controlled electrically powered cloth laying carriage having first and second control stations at either longitudinal ends thereof, each station selectively controlling the direction and speed of movement of said carriage, the improvement comprising: each of said first and second stations having a twist grip means having a principal axis and being adapted for rotation about its own axis, said grip means having an eccentric portion thereon, first and second elongated link means interconnected to said eccentric portions at one end thereof, a gear carried by said carriage, the inner ends of said link means being interconnected to opposed portions of said gear; a torsion spring means operating on said gear, and tending to return said link means to predetermined position in the absence of manually exerted torque upon either of said grip means, and potentiometer means carried by said carriage having a shaft driven by said gear; at least one of said link means having switch actuating means thereon, and a pair of switches carried by said carriage and positioned to be selectively contacted by movement of said link means in a given direction, each of said switches being electrically connected to a relay means powering said potentiometer.
Claim 4
Dependent Claim
201 words
In a manually controlled electrically powered cloth laying carriage having first and second control stations at either longitudinal ends thereof, each station selectively controlling the direction and speed of movement of said carriage, the improvement comprising: each of said first and second stations having a twist grip means having a principal axis and being adapted for rotation about its own axis, said grip means having an eccentric portion thereon, first and second elongated link means interconnected to said eccentric portions at one end thereof, a gear carried by said carriage, the inner ends of said link means being interconnected to opposed portions of said gear; a torsion spring means operating on said gear, and tending to return said link means to predetermined position in the absence of manually exerted torque upon either of said grip means, and potentiometer means carried by said carriage having a shaft driven by said gear; at least one of said link means having switch actuating means thereon, and a pair of switches carried by said carriage and positioned to be selectively contacted by movement of said link means in a given direction, each of said switches being electrically connected to a relay means powering said potentiometer.
Claim 5
Dependent Claim
43 words
Structure in accordance with claim 1, said pair of switches being electrically connected in parallel, and a separate reversing switch located on said carriage for determining the direction of movement of said carriage upon the closing of one of said pair of switches.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |