CA1126253A - Winch system - Google Patents
Winch systemInfo
- Publication number
- CA1126253A CA1126253A CA356,380A CA356380A CA1126253A CA 1126253 A CA1126253 A CA 1126253A CA 356380 A CA356380 A CA 356380A CA 1126253 A CA1126253 A CA 1126253A
- Authority
- CA
- Canada
- Prior art keywords
- storage drum
- lead screw
- line
- sheave
- slide means
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/36—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
- B66D1/38—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains by means of guides movable relative to drum or barrel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
- Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A winch system for paying out and retrieving line.
The winch system includes a spooling unit, traction unit, and automatic level wind. The automatic level wind allows the location of the spooling unit and traction unit to be varied with respect to each other. The spooling unit, traction unit, and automatic level wind can thus be arranged to avoid reverse bends in the line even though the winch system is packaged as a single compact unit. The automatic level wind linearly recipro-cates the point at which line is direct on or off the spooling unit.
A winch system for paying out and retrieving line.
The winch system includes a spooling unit, traction unit, and automatic level wind. The automatic level wind allows the location of the spooling unit and traction unit to be varied with respect to each other. The spooling unit, traction unit, and automatic level wind can thus be arranged to avoid reverse bends in the line even though the winch system is packaged as a single compact unit. The automatic level wind linearly recipro-cates the point at which line is direct on or off the spooling unit.
Description
;253 Field of the Invention The present invention discloses a winch system having an automatic level wind which prevents reverse bends in line controlled by the winch system.
Prior Art A winch system with an automatic level wind device is shown in U.S. Patent 3,020,022 to E.W. Turnquist. However, in this system a reverse bend is imposed upon the line controlled by the winch system.
BRIEF SUMMARY OF THE INVENTION
The present invention discloses a winch system, for retrieving and paying out a line, having a traction unit and spooling unit comprising a storage drum within the spooling unit for storing the line, means for rotating the storage drum to take up and pay out the line, means for rotating the capstan to retrieve and pay out the line, a level wind means comprising a lead screw axially aligned with the storage drum and powered by a timing chain between the storage drum and the lead screw whereby rotation of the storage drum causes rotation of the lead screw, two sheaves to direct movement of the line between the capstan and the storage drum, the first sheave having a fixed position relative to both the capstan and the storage drum, the second sheave spaced from the first sheave and movable with re~pect to the storage drum, a slide means comprising a hollow sleeve and a rod disposed therein, one sheave attached to either end of the slide means, one end of the slide means having a fixed pivot point with respect to the storage drum and capstan, and means for engaging the other end of the slide means with the lead screw whereby rotation of the storage drum causes rotation ~ Z6;~53 1 of the lead screw and movement of the other end of the slide means and second sheave parallel with the axis of the storage drum.
One object of the present invention is to provide a winch system which prevents reverse bends in the line controlled by the winch system.
Another object of the present invention is to disclose an automatic level wind system which allows alternative locations for a traction unit and a spooling unit with respect to each other.
Still another object of the present invention is to disclose a winch system having a traction unit, spooling unit, and automatic level wind which can be combined together in a relatively compact package.
A further object of the present invention is to provide a level wind system wherein the sheave directing line on and off the storage drum, maintains parallel axial alignment with the storage drum while reciprocating linearly with respect to the storage drum.
Additional objects and advantages of the present invention wi~ be obvious to those skilled in the art from reading the attached written description and claims in conjunction with the drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a schematic drawing showing a plan view of a winch system of the present invention with portions partially cut away.
Figure 2 is a schematic drawing showing an elevational view of the winch system of Figure 1 with portions partially cut awaY-~26253 1 Figure 3 is a schematic drawing showing a side view of the winch system of Figure 1 with portions partially cut away.
Figure 4 is an enlarged schematic drawing showing one embodiment of the automatic level wind means of the present invention. A winch system using this embodiment of the automatic level wind means would have the traction unit located below the spooling unit rather than above the spooling unit as shown in Figure 2.
i Figure 5 is a side view of the automatic level wind means shown in Figure 4.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring to the drawings and particularly Figures 1,
Prior Art A winch system with an automatic level wind device is shown in U.S. Patent 3,020,022 to E.W. Turnquist. However, in this system a reverse bend is imposed upon the line controlled by the winch system.
BRIEF SUMMARY OF THE INVENTION
The present invention discloses a winch system, for retrieving and paying out a line, having a traction unit and spooling unit comprising a storage drum within the spooling unit for storing the line, means for rotating the storage drum to take up and pay out the line, means for rotating the capstan to retrieve and pay out the line, a level wind means comprising a lead screw axially aligned with the storage drum and powered by a timing chain between the storage drum and the lead screw whereby rotation of the storage drum causes rotation of the lead screw, two sheaves to direct movement of the line between the capstan and the storage drum, the first sheave having a fixed position relative to both the capstan and the storage drum, the second sheave spaced from the first sheave and movable with re~pect to the storage drum, a slide means comprising a hollow sleeve and a rod disposed therein, one sheave attached to either end of the slide means, one end of the slide means having a fixed pivot point with respect to the storage drum and capstan, and means for engaging the other end of the slide means with the lead screw whereby rotation of the storage drum causes rotation ~ Z6;~53 1 of the lead screw and movement of the other end of the slide means and second sheave parallel with the axis of the storage drum.
One object of the present invention is to provide a winch system which prevents reverse bends in the line controlled by the winch system.
Another object of the present invention is to disclose an automatic level wind system which allows alternative locations for a traction unit and a spooling unit with respect to each other.
Still another object of the present invention is to disclose a winch system having a traction unit, spooling unit, and automatic level wind which can be combined together in a relatively compact package.
A further object of the present invention is to provide a level wind system wherein the sheave directing line on and off the storage drum, maintains parallel axial alignment with the storage drum while reciprocating linearly with respect to the storage drum.
Additional objects and advantages of the present invention wi~ be obvious to those skilled in the art from reading the attached written description and claims in conjunction with the drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a schematic drawing showing a plan view of a winch system of the present invention with portions partially cut away.
Figure 2 is a schematic drawing showing an elevational view of the winch system of Figure 1 with portions partially cut awaY-~26253 1 Figure 3 is a schematic drawing showing a side view of the winch system of Figure 1 with portions partially cut away.
Figure 4 is an enlarged schematic drawing showing one embodiment of the automatic level wind means of the present invention. A winch system using this embodiment of the automatic level wind means would have the traction unit located below the spooling unit rather than above the spooling unit as shown in Figure 2.
i Figure 5 is a side view of the automatic level wind means shown in Figure 4.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring to the drawings and particularly Figures 1,
2 and 3, a plan view of winch system 20 is shown. The present invention allows the components of winch system 20 to be assembled as a single compact unit. The support for the various components is provided by frame members 21 which are fabricated to form a generally rectangular box or support structure 24 having open sides. As best shown in Figure 2, traction unit 22, having dual capstan heads 23a and 23b, is attached to the top of structure 24. Capstan motor 25 can drive capstan head 23a through brake and clutch assembly 26. Drive gear or sprocket 27 is attached to capstan head 23a opposite capstan motor 25. A
matching driven gear or sprocket 28 is attached to capstan head '' '~ ch a, f;r\
~23b. Drive sp~e~ 29 connects these two gears 27 and 28 allowing capstan motor 25 to rotate dual capstan head 23a and 23b in either direction. As will be later explained, the present invention allows traction unit 22 to be placed either on top of or below box 24.
A spooling unit 34 is contained generally within box 30 24 and comprises a storage drum 35. A hydraulic motor 36 ~126Z53 1 attached to an operating shaft extends from one end of drum 35 and provides a means for rotating storage drum 35. Bearings 37 rotatably support drum 35 within box 24.
As shown in Figure 3, line or cable 41 is threaded around capstan heads 23a and 23b through level wind means 42 and onto storage drum 35. As will be described later, level wind means 42 provides an automatic level wind system to ensure that line 41 is properly wrapped around storage drum 35. Capstan motor 25,which provides a means for rotating capstan heads 23a and 23b, can pay out line 41 from storage drum 35 or retrieve line 41. Storage drum 35 is rotated by a motor 36 to take up - the slack in line 41 when the traction unit is retrieving line 41. A major advantage of the present invention is that during this process of retrieving and paying out, line 41 is flexed or bent in only one direction. Reverse bending of cable or line will significantly reduce the useful life of the cable or line.
This is expecially true for high strength steel cables, high strength synthetic lines, and lines requiring a large bend diameter. As best shown in Figure 3, line 41 is always bent in the same direction while moving through winch system 20.
Level wind means 42 allows traction unit 22 and spooling unit 34 to be packaged as a small compact winch system without reverse bending of line 41. Level wind means 42 comprises a lead screw 43 which is rotatably supported by box 24 and con-nected to storage drum 35 by timing chain 44. Rotation of storage drum 35 thus causes synchronous rotation of lead screw 43.
Level wind means 42 also comprises slide means 45.
Figures 2 and 4 show slide means in two different positions, one in solid lines and one in dotted lines. Actu~ally, slide means 45 moves continually as it is reciprocated linearly by lead screw 43.
-~126Z53 1 One end of slide means 45 is attached to a fixed pivot point 46.
As shown in Figures 1, 2, and 3, pivot point 46 is supported by box 24 above lead screw 43. If desired for a particular winch system, pivot point 46 can be positioned below lead screw 43 to vary the position of traction unit 22 with respect to spooling unit 24. This embodiment is shown in Figure 4.
Slide means 45 also comprises a hollow sleeve 47 with rod 48 slidably disposed therein. As slide means 45 is recipro-cated linearly by lead screw 43, rod 48 can extend and retract within sleeve 47. The dotted position of slide means 45 shown in Figures 2 and 4 shows rod 48 in its extended position. A
first sheave 49 is rotatably attached to one end of slide means 45 near fixed pivot 46. A second sheave 50 is attached near the other end of slide means 45 where slide means 45 engages lead screw 43. Sheaves 49 and 50 provide a means for directing line 41 between traction unit 22 and spooling unit 34. Since sheave 49 is near fixed pivot 46, the vertical and horizontal movement of;line 41 between sheave 49 and capstan head 23a is eliminated.
This elimination of vertical and horizontal movement of line 41 is achieved by sheave 49 pivoting about an axis coincident with the line between capstan head 23a and pivot 46.
Sheave 50 is attached to rod 48 near the other end of sliding means 45. The a~is of lead screw 43 is parallel with the axis of storage drum 35. As previously noted, rod 48 can extend and retract as slide means 45 is reciprocated linearly by lead screw 43. This results in sheave 50 moving parallel with the axis of storage drum 35 while reciprocating from one end of lead screw 43 to the other. Also, the vertical and horizontal spacing between sheave 50 and stor-age drum 35 remains relatively constant. This parallel, axial movement of sheave 50 1 and limited horizontal or vertical movement results in a signi-ficant reduction in wear and tear to line 41 as it is payed out and retrieved.
Means for engaging slide means 45 with lead screw 43 includes a carriage 54. Cylinder 55, having openings at either end, forms a portion of carriage 54 and is slidably disposed around the outside diameter of lead screw 43. Two helical grooves 56 and 57 are machined in the outside diameter of lead screw 43. The helical grooves 56 and 57 are joined at each end of lead screw 43 to form a continuous, endless groove. A pawl 58 carried by cylinder 55 is engaged with either helical groove 56 or 57. Pawl 58 moves continuously through helical grooves 56 and 57 reversing the linear direction of carriage 54 without reversing the direction of lead screw 43 rotation. The helical grooves and pawl translate rotation of lead screw 43 into reciprocating linear motion of cylinder 55 and carriage 54.
Means for rotating lead screw 43 includes timing chain 44.
As shown in Figure 4, timing chain 44 does not have to be one continuous chain between storage drum 35 and lead screw 43.
One end of sprocket end bearing assembly 59 is driven by storage drum 35 (not shown) through timing chain 44b. Time chain 44a is connected between the other end of sprocket and bearing assembly 59. Also, as shown in Figure 5 a pivot con-nection 61 is provided between carriage 54 and slide means 45.
A cam 63 is shown projection from carriage 54 and slidably disposed within guide frame 62. Guide frame 62 can be attached to box 24 (not shown) resulting in cam 63 stabilizing sheave 50 to prevent undesired vertical or horizontal movement with respect to storage drum 35 (not shown).
~L:lL26Z53 1 Those skilled in the art will readily see other em~odiments and modifications of the present invention. The preceding description and the drawings are not intended to limit the scope of the present i.nvention which is defined by the claims.
matching driven gear or sprocket 28 is attached to capstan head '' '~ ch a, f;r\
~23b. Drive sp~e~ 29 connects these two gears 27 and 28 allowing capstan motor 25 to rotate dual capstan head 23a and 23b in either direction. As will be later explained, the present invention allows traction unit 22 to be placed either on top of or below box 24.
A spooling unit 34 is contained generally within box 30 24 and comprises a storage drum 35. A hydraulic motor 36 ~126Z53 1 attached to an operating shaft extends from one end of drum 35 and provides a means for rotating storage drum 35. Bearings 37 rotatably support drum 35 within box 24.
As shown in Figure 3, line or cable 41 is threaded around capstan heads 23a and 23b through level wind means 42 and onto storage drum 35. As will be described later, level wind means 42 provides an automatic level wind system to ensure that line 41 is properly wrapped around storage drum 35. Capstan motor 25,which provides a means for rotating capstan heads 23a and 23b, can pay out line 41 from storage drum 35 or retrieve line 41. Storage drum 35 is rotated by a motor 36 to take up - the slack in line 41 when the traction unit is retrieving line 41. A major advantage of the present invention is that during this process of retrieving and paying out, line 41 is flexed or bent in only one direction. Reverse bending of cable or line will significantly reduce the useful life of the cable or line.
This is expecially true for high strength steel cables, high strength synthetic lines, and lines requiring a large bend diameter. As best shown in Figure 3, line 41 is always bent in the same direction while moving through winch system 20.
Level wind means 42 allows traction unit 22 and spooling unit 34 to be packaged as a small compact winch system without reverse bending of line 41. Level wind means 42 comprises a lead screw 43 which is rotatably supported by box 24 and con-nected to storage drum 35 by timing chain 44. Rotation of storage drum 35 thus causes synchronous rotation of lead screw 43.
Level wind means 42 also comprises slide means 45.
Figures 2 and 4 show slide means in two different positions, one in solid lines and one in dotted lines. Actu~ally, slide means 45 moves continually as it is reciprocated linearly by lead screw 43.
-~126Z53 1 One end of slide means 45 is attached to a fixed pivot point 46.
As shown in Figures 1, 2, and 3, pivot point 46 is supported by box 24 above lead screw 43. If desired for a particular winch system, pivot point 46 can be positioned below lead screw 43 to vary the position of traction unit 22 with respect to spooling unit 24. This embodiment is shown in Figure 4.
Slide means 45 also comprises a hollow sleeve 47 with rod 48 slidably disposed therein. As slide means 45 is recipro-cated linearly by lead screw 43, rod 48 can extend and retract within sleeve 47. The dotted position of slide means 45 shown in Figures 2 and 4 shows rod 48 in its extended position. A
first sheave 49 is rotatably attached to one end of slide means 45 near fixed pivot 46. A second sheave 50 is attached near the other end of slide means 45 where slide means 45 engages lead screw 43. Sheaves 49 and 50 provide a means for directing line 41 between traction unit 22 and spooling unit 34. Since sheave 49 is near fixed pivot 46, the vertical and horizontal movement of;line 41 between sheave 49 and capstan head 23a is eliminated.
This elimination of vertical and horizontal movement of line 41 is achieved by sheave 49 pivoting about an axis coincident with the line between capstan head 23a and pivot 46.
Sheave 50 is attached to rod 48 near the other end of sliding means 45. The a~is of lead screw 43 is parallel with the axis of storage drum 35. As previously noted, rod 48 can extend and retract as slide means 45 is reciprocated linearly by lead screw 43. This results in sheave 50 moving parallel with the axis of storage drum 35 while reciprocating from one end of lead screw 43 to the other. Also, the vertical and horizontal spacing between sheave 50 and stor-age drum 35 remains relatively constant. This parallel, axial movement of sheave 50 1 and limited horizontal or vertical movement results in a signi-ficant reduction in wear and tear to line 41 as it is payed out and retrieved.
Means for engaging slide means 45 with lead screw 43 includes a carriage 54. Cylinder 55, having openings at either end, forms a portion of carriage 54 and is slidably disposed around the outside diameter of lead screw 43. Two helical grooves 56 and 57 are machined in the outside diameter of lead screw 43. The helical grooves 56 and 57 are joined at each end of lead screw 43 to form a continuous, endless groove. A pawl 58 carried by cylinder 55 is engaged with either helical groove 56 or 57. Pawl 58 moves continuously through helical grooves 56 and 57 reversing the linear direction of carriage 54 without reversing the direction of lead screw 43 rotation. The helical grooves and pawl translate rotation of lead screw 43 into reciprocating linear motion of cylinder 55 and carriage 54.
Means for rotating lead screw 43 includes timing chain 44.
As shown in Figure 4, timing chain 44 does not have to be one continuous chain between storage drum 35 and lead screw 43.
One end of sprocket end bearing assembly 59 is driven by storage drum 35 (not shown) through timing chain 44b. Time chain 44a is connected between the other end of sprocket and bearing assembly 59. Also, as shown in Figure 5 a pivot con-nection 61 is provided between carriage 54 and slide means 45.
A cam 63 is shown projection from carriage 54 and slidably disposed within guide frame 62. Guide frame 62 can be attached to box 24 (not shown) resulting in cam 63 stabilizing sheave 50 to prevent undesired vertical or horizontal movement with respect to storage drum 35 (not shown).
~L:lL26Z53 1 Those skilled in the art will readily see other em~odiments and modifications of the present invention. The preceding description and the drawings are not intended to limit the scope of the present i.nvention which is defined by the claims.
Claims (11)
- Claim 1 continued.....
drum causes rotation of the lead screw and movement of the other end of the slide means and second sheave parallel with the axis of the storage drum. - 2. A winch system as defined in claim 1, further comprising:
a. the line running between the traction unit and the first sheave;
b. the second sheave directing the movement of the line onto and off of the storage drum; and c. the level wind means located between the traction unit and the storage drum preventing reverse bends in the line within the winch system. - 3. A winch system as defined in claim 1, wherein the means for engaging the slide means with the lead screw further com-prises a carriage supported on the lead screw and engageable with the lead screw to translate rotation of the lead screw into reciprocating linear movement of the carriage.
4. In a winch system, an automatic level wind system for storing line on a storage drum, comprising:
a. a lead screw assembly;
b. means for rotating the lead screw in unison with the storage drum;
c. a slide means comprising a rod disposed within a hollow sleeve;
d. a carriage attached to one end of the slide means;
e. means for attaching the carriage to the lead screw whereby rotation of the lead screw is translated into reciprocating linear movement of the carriage; - Claim 4 continued...
f. the other end of the slide means being engaged by a pivot at a fixed location with respect to the storage drum;
g. a sheave on either end of the slide means with one sheave on the hollow sleeve and one sheave on the rod;and h. the line having the same direction of bending around the sheaves and the storage drum. - 5. An automatic level wind system as defined in claim 4, wherein the means for rotating the lead screw in unison with the storage drum comprises a timing chain.
- 6. An automatic level wind system as defined in claim 4, wherein the means for attaching the carriage to the lead screw comprises:
a. continuous helical grooves formed on the outside diameter of the lead screw; and b. a pawl secured to the carriage and engaged with the helical grooves.
7. A winch system having an automatic level wind system for storing line on a storage drum, comprising:
a. a lead screw assembly;
b. means for rotating the lead screw in unison with the storage drum;
c. a slide means comprising a rod disposed within a hollow sleeve;
d. a carriage attached to one end of the slide means;
e. means for attaching the carriage to the lead screw whereby rotation of the lead screw is translated into reciprocating linear movement of the carriage;
f. the other end of the slide means being engaged by a pivot at a fixed location with respect to the storage drum; - Claim 7 continued....
g. a sheave attached to either end of the slide means with one sheave on the hollow sleeve and one sheave on the rod; and h. the line having the same direction of bending around the sheaves and the storage drum. - 8. A winch system as defined in claim 7 wherein the means for rotating the lead screw in unison with the storage drum comprises a timing chain.
- 9. A winch system as defined in claim 7 wherein the means for attaching the carriage to the lead screw comprises:
a. continuous helical grooves formed on the outside diameter of the lead screw; and b. a pawl secured to the carriage and engaged with the helical grooves. - 10. A winch system as defined in claim 7 further comprising:
a. the line threaded from a traction unit through the sheave having a fixed location with respect to the storage drum;
b. the other sheave on the slide means directing the movement of the line onto and off of the storage drum;
and c. the automatic level wind means located between the traction unit and the storage drum preventing reverse bends in the line within the winch system.
11. A winch system, for retrieving and paying out a line, having a traction unit and a spooling unit comprising:
a. a storage drum within the spooling unit for storing the line;
b. means for rotating the storage drum to take up or pay out the line; - Claim 11 continued...
c. a capstan within the traction unit to retrieve and pay out the line;
d. means for rotating the capstan to retrieve and pay out the line;
e. a level wind means comprising a lead screw longitudinal-ly parallel with the storage drum and powered by a timing chain between the storage drum and the lead screw whereby rotation of the storage drum causes rotation of the lead screw;
f. two sheaves to direct movement of the line between the capstan and the storage drum;
g. the first sheave having a fixed position relative to both the capstan and the storage drum;
h. the second sheave spaced from the first sheave and movable with respect to the storage drum;
i. a slide means comprising a hollow sleeve and a rod disposed therein;
j. one sheave attached to either end of the slide means;
k. one end of the slide means having a fixed pivot point with respect to the storage drum and capstan;
l. means for engaging the other end of the slide means with the lead screw whereby rotation of the storage drum causes rotation of the lead screw and movement of the other end of the slide means and second sheave parallel with the axis of the storage drum;
m. the capstan located vertically above the storage drum;
and n. the level wind means spaced horizontally from the storage drum with the slide means extending vertically from the lead screw.
1. A winch system, for retrieving and paying out a line, having a traction unit and a spooling unit comprising:
a. a storage drum within the spooling unit for storing the line;
b. means for rotating the storage drum to take up or pay out the line;
c. a capstan within the traction unit to retrieve and pay out the line;
d. means for rotating the capstan to retrieve and pay out the line;
e. a level wind means comprising a lead screw longitu-dinally parallel with the storage drum and powered by a timing chain between the storage drum and the lead screw whereby rotation of the storage drum causes rotation of the lead screw;
f. two sheaves to direct movement of the line between the capstan and the storage drum;
g. the first sheave having a fixed position relative to both the capstan and the storage drum;
h. the second sheave spaced from the first sheave and movable with respect to the storage drum;
i. a slide means comprising a hollow sleeve and a rod disposed therein;
j. one sheave attached to either end of the slide means;
k. one end of the slide means having a fixed pivot point with respect to the storage drum and capstan; and 1. means for engaging the other end of the slide means with the lead screw whereby rotation of the storage
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US6258079A | 1979-08-01 | 1979-08-01 | |
| US062,580 | 1979-08-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1126253A true CA1126253A (en) | 1982-06-22 |
Family
ID=22043414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA356,380A Expired CA1126253A (en) | 1979-08-01 | 1980-07-17 | Winch system |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA1126253A (en) |
| GB (1) | GB2058703B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO159483C (en) * | 1982-11-15 | 1989-01-04 | Formek As | DEVICE FOR CONTROLLED STAALTAU OR similar to a rotatable drum. |
| IT1302793B1 (en) * | 1998-11-04 | 2000-09-29 | Danieli & C Ohg Sp | DEVICE FOR FORMING THE SPOOLS IN A LAMINATED PRODUCT MACHINE |
| GB0027622D0 (en) * | 2000-11-11 | 2000-12-27 | Coflexip | Winch system |
| ITUD20040037A1 (en) | 2004-03-03 | 2004-06-03 | Simac Spa | METAL WIRE REELING MACHINE |
| CN116456652B (en) * | 2023-06-16 | 2023-08-29 | 四川天中星航空科技有限公司 | Electronic countermeasure in-situ detection equipment based on neural network |
-
1980
- 1980-07-17 CA CA356,380A patent/CA1126253A/en not_active Expired
- 1980-07-31 GB GB8025022A patent/GB2058703B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB2058703A (en) | 1981-04-15 |
| GB2058703B (en) | 1983-01-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |