CA1048562A - Device for lifting pieces of lumber - Google Patents
Device for lifting pieces of lumberInfo
- Publication number
- CA1048562A CA1048562A CA76249471A CA249471A CA1048562A CA 1048562 A CA1048562 A CA 1048562A CA 76249471 A CA76249471 A CA 76249471A CA 249471 A CA249471 A CA 249471A CA 1048562 A CA1048562 A CA 1048562A
- Authority
- CA
- Canada
- Prior art keywords
- hoisting
- lumber
- pieces
- basin
- water level
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A lumber lifting device is disclosed for lifting indi-vidual pieces of lumber from an elongate soaking basin. The device has a hoisting unit with a concave hoisting surface and immediately below this a curved stopping surface. The device is capable of revolving forwards and backwards to a limited extent and the hoisting surface, which holds a single piece of lumber, is located below the water surface of the basin. On rotating the hoisting device the lumber is dumped so that it rolls or glides off the hoisting surface and is transferred to a reception position.
A lumber lifting device is disclosed for lifting indi-vidual pieces of lumber from an elongate soaking basin. The device has a hoisting unit with a concave hoisting surface and immediately below this a curved stopping surface. The device is capable of revolving forwards and backwards to a limited extent and the hoisting surface, which holds a single piece of lumber, is located below the water surface of the basin. On rotating the hoisting device the lumber is dumped so that it rolls or glides off the hoisting surface and is transferred to a reception position.
Description
~48S~;~
The present invention relates to a device for lifting pieces of lumber from an elongate soaking basin, in which the pieces of lumber are fed transversely towards the lifting de-vice In previously known soaking basins use has been made of a device in the form of a wheel for removing pieces of lum-ber, the radial arms of the wheel serving to lift the pieces of lumber. The wheel is obliged to rotate in the same direc-tion, the entire device requiring a great deal of space~ As the radial arms must be powerfully constructed, the wheel must be heavy as a result, thereby causing a heavy load on its bea-rings It is also known that for the transverse removal of pieces of lumber from a water channel use has been made of a grab device, whereby lifting arms, which can be raised or lowe-red along vertical columns, for lifting the lumber For this purpose, however, a checking device in coordination with the arms is required to prevent the pieces of lumber coming into contact with the arms when these are being lowered below the level of the lumber before~ising to the surface with their load. In consequence, the entire plant with its columns, lif-ting arms and coordinated checking device is of a complicated nature The purpose of the present invention iæ to produce a device for removi~g pieces of lumber, which is of stable but at the same time of simple design, is modest with regard to space requirements and is reliable in operation.
This purpose is achieved as follows:
A lumber lifting device for removing pieces of lum-ber which are free floating in a liquid such a water in an elongate soaking basin, which pieces are fed to the lifting de-vice in their transverse direction, said device comprising:
hoisting means including a concave hoisting surface and a stop--2_ 16)48S6;~
ping surface connected to said hoisting surface on the bottom of a front outter edge of said hoisting surfac~; said basin including an upwardly inclined sur~ace extending from the bot-tom of said basin toward said hoisting means with an upper edge below the water ~evel of said basin adjacent the surfaces of said hoisting means; and means for rotating said hoisting means less than one-half revolution from a first reception position with said hoisting surface outter edge substantially aligned with said upper edge of said inclined sur~ace below the water level o~ said basin to receive one or more pieces of lumber and second dumping position with said hoisting surface above the water level to discharge said pieces of lumber and said stopping surface extending below the water level adjacent said upper edge of said inclined surface to prevent pieces of lumber from inter~ering with the rotation of said hoisting means.
The invention is shown in a design in one of the attached drawings as an example.
Fig. 1 shows a vertical longitudinal section through an end part of a basin equipped with a device for removing pie-ces of lumber in accordance with the invention.
Fig. 2 shows the end part in Fig. 1 seen from above,but with certain details excluded.
The part of a soaking basin shown in the ~igures com-prises part of a basin plant, for example of the type which has an elongate basin, and in the latter, which is referred to as 1, pieces of lumber 3 are fed forwards along the dashed lines Fig. 1, while remaining in their transverse direction, in the direction indicated by Arrow 2 in the direction of the left end wall of the basin, Fig. 2, where a device forS~removing lum-ber 53 in accordance with the present invention is installed.Next to the device ~or removing lumber 53 the basin 1 is fitted with a lumber discharge opening 52. The device 53 consists of ,~ .
l'r~4~35~
a hoisting unit with a hoisting surface 54 and a stopping sur-face 55. The hoisting unit is capable of revolving forwards and backwards, suitably one-quarter revolution along a shaft 56 and driven by a hydraulic device 57 coordinated to crank-shaft 58. At the side of the device for-~removing lumber 53 outside the end wall of the basin there is a single piece fee-ding device 60 and next to this a longitudinal conveyor 61 When the hoisting device is in the reception position indicated in Fig. 1 by full lines and the hoisting surface 54 as well as the stopping surface 55 are below the water level, the pieces of lumber, which are being fed through basin l;
the direction shown by Arrow 3, will possibly - via an inclined surface 59 on the bottom of the basin - be moved on to the hoisting surface 54 When, by means of the hydraulic device 57 being turned one-quarter of a revolution, the hoisting de-vice reaches the dumping position shown by dotted lines in Fig. 1, the piece or pieces of lumber, brought up by the hois-ting surface 54, is/are removed from the basin and passed to the single piece feeding device 60, which then passes on the pieces of lumber one by one to the longitudinal conveyor 61 for further transport. The stopping surface 55 is continually under water to ensure that the pieces of lumber in the basin are not fed beyond the po~nt where they should be transferred to the hoisting surface 54 when this is in the reception posi~
tion and also to prevent pieces of lumber from hindering the return of the hoisting surface 54 to its starting position for receiving a fresh load of lumber.
In accordance with the invention, the device for removing pieces of lumbar is of simple design, which at the same time is so stable that it can stand up to the loading of pieces of lumber that breakdowns can be avoided, especially thanks to the presence of the stopping surface 55 connected to .~
1~)4~6~
the hoisting surface and that the space required for the plant is limited because the hoisting unit is only turned forwards and backwards less than one-half of a revolution.
The design described and shown on the drawings can be modified within the scope of the invention. For example, some other po~er device than the described hydraulic unit can be used ~or turning the hoisting device forwards and backwards.
.
.
The present invention relates to a device for lifting pieces of lumber from an elongate soaking basin, in which the pieces of lumber are fed transversely towards the lifting de-vice In previously known soaking basins use has been made of a device in the form of a wheel for removing pieces of lum-ber, the radial arms of the wheel serving to lift the pieces of lumber. The wheel is obliged to rotate in the same direc-tion, the entire device requiring a great deal of space~ As the radial arms must be powerfully constructed, the wheel must be heavy as a result, thereby causing a heavy load on its bea-rings It is also known that for the transverse removal of pieces of lumber from a water channel use has been made of a grab device, whereby lifting arms, which can be raised or lowe-red along vertical columns, for lifting the lumber For this purpose, however, a checking device in coordination with the arms is required to prevent the pieces of lumber coming into contact with the arms when these are being lowered below the level of the lumber before~ising to the surface with their load. In consequence, the entire plant with its columns, lif-ting arms and coordinated checking device is of a complicated nature The purpose of the present invention iæ to produce a device for removi~g pieces of lumber, which is of stable but at the same time of simple design, is modest with regard to space requirements and is reliable in operation.
This purpose is achieved as follows:
A lumber lifting device for removing pieces of lum-ber which are free floating in a liquid such a water in an elongate soaking basin, which pieces are fed to the lifting de-vice in their transverse direction, said device comprising:
hoisting means including a concave hoisting surface and a stop--2_ 16)48S6;~
ping surface connected to said hoisting surface on the bottom of a front outter edge of said hoisting surfac~; said basin including an upwardly inclined sur~ace extending from the bot-tom of said basin toward said hoisting means with an upper edge below the water ~evel of said basin adjacent the surfaces of said hoisting means; and means for rotating said hoisting means less than one-half revolution from a first reception position with said hoisting surface outter edge substantially aligned with said upper edge of said inclined sur~ace below the water level o~ said basin to receive one or more pieces of lumber and second dumping position with said hoisting surface above the water level to discharge said pieces of lumber and said stopping surface extending below the water level adjacent said upper edge of said inclined surface to prevent pieces of lumber from inter~ering with the rotation of said hoisting means.
The invention is shown in a design in one of the attached drawings as an example.
Fig. 1 shows a vertical longitudinal section through an end part of a basin equipped with a device for removing pie-ces of lumber in accordance with the invention.
Fig. 2 shows the end part in Fig. 1 seen from above,but with certain details excluded.
The part of a soaking basin shown in the ~igures com-prises part of a basin plant, for example of the type which has an elongate basin, and in the latter, which is referred to as 1, pieces of lumber 3 are fed forwards along the dashed lines Fig. 1, while remaining in their transverse direction, in the direction indicated by Arrow 2 in the direction of the left end wall of the basin, Fig. 2, where a device forS~removing lum-ber 53 in accordance with the present invention is installed.Next to the device ~or removing lumber 53 the basin 1 is fitted with a lumber discharge opening 52. The device 53 consists of ,~ .
l'r~4~35~
a hoisting unit with a hoisting surface 54 and a stopping sur-face 55. The hoisting unit is capable of revolving forwards and backwards, suitably one-quarter revolution along a shaft 56 and driven by a hydraulic device 57 coordinated to crank-shaft 58. At the side of the device for-~removing lumber 53 outside the end wall of the basin there is a single piece fee-ding device 60 and next to this a longitudinal conveyor 61 When the hoisting device is in the reception position indicated in Fig. 1 by full lines and the hoisting surface 54 as well as the stopping surface 55 are below the water level, the pieces of lumber, which are being fed through basin l;
the direction shown by Arrow 3, will possibly - via an inclined surface 59 on the bottom of the basin - be moved on to the hoisting surface 54 When, by means of the hydraulic device 57 being turned one-quarter of a revolution, the hoisting de-vice reaches the dumping position shown by dotted lines in Fig. 1, the piece or pieces of lumber, brought up by the hois-ting surface 54, is/are removed from the basin and passed to the single piece feeding device 60, which then passes on the pieces of lumber one by one to the longitudinal conveyor 61 for further transport. The stopping surface 55 is continually under water to ensure that the pieces of lumber in the basin are not fed beyond the po~nt where they should be transferred to the hoisting surface 54 when this is in the reception posi~
tion and also to prevent pieces of lumber from hindering the return of the hoisting surface 54 to its starting position for receiving a fresh load of lumber.
In accordance with the invention, the device for removing pieces of lumbar is of simple design, which at the same time is so stable that it can stand up to the loading of pieces of lumber that breakdowns can be avoided, especially thanks to the presence of the stopping surface 55 connected to .~
1~)4~6~
the hoisting surface and that the space required for the plant is limited because the hoisting unit is only turned forwards and backwards less than one-half of a revolution.
The design described and shown on the drawings can be modified within the scope of the invention. For example, some other po~er device than the described hydraulic unit can be used ~or turning the hoisting device forwards and backwards.
.
.
Claims
1. A lumber lifting device for removing pieces of lumber which are free floating in a liquid such as water in an elongate soaking basin, which pieces are fed to the lifting device in their transverse direction, said device comprising:
hoisting means including a concave hoisting surface and a stop-ping surface connected to said hoisting surface on the bottom of a front outter edge of said hoisting surface; said basin including an upwardly inclined surface extending from the bot-tom of said basin toward said hoisting means with an upper edge below the water level of said basin adjacent the surfaces of said hoisting means, and means for rotating said hoisting means less than one-half revolution from a first reception position with said hoisting surface outter edge substantially aligned with said upper edge of said inclined surface below the water level of said basin to receive one or more pieces of lumber and a second dumping position with said hoisting surface above the water level to discharge said pieces of lumber and said stopping surface extending below the water level adjacent said upper edge of said inclined surface to prevent pieces of lumber from interfering with the rotation of said hoisting means.
hoisting means including a concave hoisting surface and a stop-ping surface connected to said hoisting surface on the bottom of a front outter edge of said hoisting surface; said basin including an upwardly inclined surface extending from the bot-tom of said basin toward said hoisting means with an upper edge below the water level of said basin adjacent the surfaces of said hoisting means, and means for rotating said hoisting means less than one-half revolution from a first reception position with said hoisting surface outter edge substantially aligned with said upper edge of said inclined surface below the water level of said basin to receive one or more pieces of lumber and a second dumping position with said hoisting surface above the water level to discharge said pieces of lumber and said stopping surface extending below the water level adjacent said upper edge of said inclined surface to prevent pieces of lumber from interfering with the rotation of said hoisting means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA76249471A CA1048562A (en) | 1976-04-02 | 1976-04-02 | Device for lifting pieces of lumber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA76249471A CA1048562A (en) | 1976-04-02 | 1976-04-02 | Device for lifting pieces of lumber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1048562A true CA1048562A (en) | 1979-02-13 |
Family
ID=4105625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA76249471A Expired CA1048562A (en) | 1976-04-02 | 1976-04-02 | Device for lifting pieces of lumber |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1048562A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4624361A (en) * | 1984-02-14 | 1986-11-25 | Exco Industries Ltd. | Single log feeder |
| US4911283A (en) * | 1987-10-30 | 1990-03-27 | Hollins Bryant C | Single log feeder |
-
1976
- 1976-04-02 CA CA76249471A patent/CA1048562A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4624361A (en) * | 1984-02-14 | 1986-11-25 | Exco Industries Ltd. | Single log feeder |
| US4911283A (en) * | 1987-10-30 | 1990-03-27 | Hollins Bryant C | Single log feeder |
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