US3771641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and an apparatus for conveying elongated objects one-by-one
Assignee: DOMSJO AB
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Filing: 1971-09-02
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Granted: 1973-11-13
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Expires: 1991-09-02
Abstract
Abstract A process and apparatus for conveying elongated objects such as logs one-by-one and sideways from one place to another is provided. The objects are first conveyed along a horizontal path, with control of the quantity conveyed per unit of time, and then transported through two or more sequentially arranged upwardly inclined sections, such as chain conveyors, at an angle to the horizontal within the range from about 35* to about 55*, of such magnitude that the objects thereon attempt to assume a horizontal position, with their longitudinal axis perpendicular to the conveying direction. The conveying speed in each stage is increased in the conveying direction so as to separate the objects one from the other, from those in the more slowly moving sections, and cause them to be delivered one-by-one to the place of delivery.
Inventors
- 👤 K Jonsson
- 👤 O Frisk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:41
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/02; B65G47/04; B65G47/12; B65G47/14; B65G47/1492
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
157 words
A process for conveying elongated objects such as logs oneby-one and sideways from a receiving station to a delivery station, which comprises conveying the objects along a horizontal path to an equalizing station; sending the objects on from the equalizing station one at a time, at a rate of feed controlled to send on during a predetermined unit period of time a predetermined quantity of objects; transporting the objects to and moving the objects up at least two sequentially arranged stages, each upwardly inclined at an angle to the horizontal within the range from about 35* to 55*, such that the objects being conveyed seek one at a time to assume a horizontal position thereon, with their longitudinal axis perpendicular to the conveying direction; while moving the objects more rapidly through each successive upwardly inclined stage so as to separate the objects one from the other, and cause them to be delivered one-by-one to the delivery station.
Claim 2
Dependent Claim
157 words
A process for conveying elongated objects such as logs oneby-one and sideways from a receiving station to a delivery station, which comprises conveying the objects along a horizontal path to an equalizing station; sending the objects on from the equalizing station one at a time, at a rate of feed controlled to send on during a predetermined unit period of time a predetermined quantity of objects; transporting the objects to and moving the objects up at least two sequentially arranged stages, each upwardly inclined at an angle to the horizontal within the range from about 35* to 55*, such that the objects being conveyed seek one at a time to assume a horizontal position thereon, with their longitudinal axis perpendicular to the conveying direction; while moving the objects more rapidly through each successive upwardly inclined stage so as to separate the objects one from the other, and cause them to be delivered one-by-one to the delivery station.
Claim 3
Independent Claim
143 words
An apparatus for conveying elongated objects one-by-one and sideways from a receiving station to a delivery station, comprising at least two sequentially-and approximately horizontally-arranged conveyors, adapted to feed the objects horizontally, and at least two sequentially-arranged and semi-vertically-inclined conveyors placed after the horizontally-arranged conveyors in the conveying direction, and inclined to carry the objects upwardly at an angle to the horizontal within the range from about 35* to 55*, each successive conveyor being adapted to operate at a higher rate of speed than the next-preceding conveyor in the direction of the receiving station, the increasing speed and the upward angle of inclination of the conveyors cooperating to separate the objects one from another and means disposed between the first two sequentially and horizontally arranged conveyors to control the quantity of objects proceeding, per unit time, from the first horizontal conveyor to the second.
Claim 4
Independent Claim
143 words
An apparatus for conveying elongated objects one-by-one and sideways from a receiving station to a delivery station, comprising at least two sequentially-and approximately horizontally-arranged conveyors, adapted to feed the objects horizontally, and at least two sequentially-arranged and semi-vertically-inclined conveyors placed after the horizontally-arranged conveyors in the conveying direction, and inclined to carry the objects upwardly at an angle to the horizontal within the range from about 35* to 55*, each successive conveyor being adapted to operate at a higher rate of speed than the next-preceding conveyor in the direction of the receiving station, the increasing speed and the upward angle of inclination of the conveyors cooperating to separate the objects one from another and means disposed between the first two sequentially and horizontally arranged conveyors to control the quantity of objects proceeding, per unit time, from the first horizontal conveyor to the second.
Claim 5
Dependent Claim
28 words
An apparatus according to claim 2 including an additional horizontally-arranged conveyor connecting with the last inclined conveyor and arranged to deliver the objects one-by-one to the receiving station.
Claim 6
Dependent Claim
42 words
An apparatus in accordance with claim 2 including a downwardly inclined means connecting the end of the next-preceding conveyor to the base of each upwardly inclined conveyor, along which means the objects may slide downwardly into engagement with the upwardly inclined conveyor.
Claim 7
Dependent Claim
42 words
The apparatus of claim 2 in which each conveyor includes at least two parallel chains, and at least one of the upwardly inclined conveyors has a plurality of pusher members attached to the chains, to engage and carry the objects upwardly therewith.
Claim 8
Dependent Claim
58 words
The apparatus of claim 5 in which the pusher members have a substantially triangular cross-section, with one side parallel with the chains and affixed thereto, and the edge facing away from the chains is rounded off, and comprises the highest portion of the pusher member as the members are moved by the chain conveyor in the transporting direction.
Claim 9
Dependent Claim
113 words
The apparatus of claim 2 in which the means controlling the quantity of objects proceeding from the first to the second horizontally arranged conveyor comprises a shaft, at least one plate pivotally mounted along one side on the shaft, and regulating means connecting the plate with the drive motor of the conveyor, the shaft and the plate extending conversely of the conveyor path, so that when the plate hangs freely, the downwardly directed side edge thereof is located at a distance from the conveyor path, the regulating means being adapted to reduce the speed of the motor when the plate is swung in the conveying direction to a predetermined angle to the vertical.
Claim 10
Dependent Claim
20 words
The apparatus of claim 7 in which the shaft and the plates mounted on the shaft are also moveable vertically.
Claim 11
Dependent Claim
54 words
The apparatus of claim 2 comprising a feed registering and regulating means arranged to encounter the objects moving to the base of at least one upwardly inclined conveyor, connected to the drive motor of the conveyor, and adapted to regulate the speed of the motor according to the objects moving past the said means.
Claim 12
Dependent Claim
106 words
The apparatus of claim 9 in which the registering means comprises a source of light, a photocell and a time relay, the light source and the photocell being arranged on opposite sides of the conveyor path in a manner such that the light beam is interrupted when more than one of the objects is piled on top of another, and the time relay is connected to the photocell so that the signal sent to the motor as a result of changes in the intensity of the light are delayed, the photocell and the light source being capable of movement vertically and in synchronization with each other.
Claim 13
Dependent Claim
91 words
The apparatus of claim 2 in which a conveyor is disposed at the discharge end of the last inclined conveyor, and so constructed as to extend partially horizonally at the delivery station end, and partially inclined to the horizontal at the upper end of the inclined conveyor; and aligning means arranged at the horizontal portion of such conveyor for moving the conveyed objects in their longitudinal direction, so that when discharged from the apparatus the objects are aligned or their ends are approximately equidistant from the longitudinal axis of the apparatus.
Claim 14
Dependent Claim
90 words
The apparatus of claim 11 in which the aligning means comprises a number of rotatably mounted rollers connected to a motor and arranged in spaced relationship across the conveying path, parallel to each other and to the conveying direction, so that the objects being conveyed rest on the roller while passing the rollers during transport, the rollers on opposite sides of the axis of the apparatus rotating in different directions when the motor is activated, so that each roller seeks to move an object resting thereon toward such symmetry line.
Claim 15
Dependent Claim
153 words
A process for conveying elogated object such as logs one-by-one sideways from a receiving station to a delivery station, which comprises conveying the objects along a horizontal path to an equalizing station; sending the objects on from the equalizing station one at a time, at a rate of feed controlled to send on during a predetermined unit period of time a predetermined quantity of objects; transporting the objects to and moving the objects up at least two sequentially arranged stages, each upwardly inclined at an angle to the horizontal of approximately 45*, such that the objects being conveyed seek one at a time to assume a horizontal position thereon, with their longitudinal axis perpendicular to the conveying direction; while moving the objects more rapidly through each successive upwardly inclined stage so as to separate the objects one from the other, and cause them to be delivered one by one to the delivery station.
Claim 16
Dependent Claim
153 words
A process for conveying elogated object such as logs one-by-one sideways from a receiving station to a delivery station, which comprises conveying the objects along a horizontal path to an equalizing station; sending the objects on from the equalizing station one at a time, at a rate of feed controlled to send on during a predetermined unit period of time a predetermined quantity of objects; transporting the objects to and moving the objects up at least two sequentially arranged stages, each upwardly inclined at an angle to the horizontal of approximately 45*, such that the objects being conveyed seek one at a time to assume a horizontal position thereon, with their longitudinal axis perpendicular to the conveying direction; while moving the objects more rapidly through each successive upwardly inclined stage so as to separate the objects one from the other, and cause them to be delivered one by one to the delivery station.
Claim 17
Independent Claim
137 words
An apparatus for conveying elongated objects one-by-one sideways from a receiving station to a delivery station, comprising at least two sequentially-and approximately horizontally-arranged conveyors, adapted to feed the objects horizontally, and at least two sequentially-arranged and semi-vertically-inclined conveyors placed after the horizontally-arranged conveyors in the conveying direction, and inclined to carry the objects upwardly at an angle to the horizontal of approximately 45*; each successive conveyor being adapted to operate at a higher rate of speed than the next-preceding conveyor in the direction of the receiving station, the increasing speed and the upward angle of inclination of the conveyors cooperating to separate the objects one from another; and means disposed between the first two sequentially and horizontally arranged conveyors to control the quantity of objects proceeding, per unit time, from the first horizontal conveyor to the second.
Claim 18
Independent Claim
137 words
An apparatus for conveying elongated objects one-by-one sideways from a receiving station to a delivery station, comprising at least two sequentially-and approximately horizontally-arranged conveyors, adapted to feed the objects horizontally, and at least two sequentially-arranged and semi-vertically-inclined conveyors placed after the horizontally-arranged conveyors in the conveying direction, and inclined to carry the objects upwardly at an angle to the horizontal of approximately 45*; each successive conveyor being adapted to operate at a higher rate of speed than the next-preceding conveyor in the direction of the receiving station, the increasing speed and the upward angle of inclination of the conveyors cooperating to separate the objects one from another; and means disposed between the first two sequentially and horizontally arranged conveyors to control the quantity of objects proceeding, per unit time, from the first horizontal conveyor to the second.
References Cited (Backward Citations)
DE1277127B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-12 | 1977-05-14 | 1977-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-12 | 1981-05-14 | 1981-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-12 | 1985-05-14 | 1985-11-13 | $7700.00 | Window Closed / Lapsed |