CA1279463C - Hook - Google Patents
HookInfo
- Publication number
- CA1279463C CA1279463C CA000428903A CA428903A CA1279463C CA 1279463 C CA1279463 C CA 1279463C CA 000428903 A CA000428903 A CA 000428903A CA 428903 A CA428903 A CA 428903A CA 1279463 C CA1279463 C CA 1279463C
- Authority
- CA
- Canada
- Prior art keywords
- hole
- cable
- thimble
- wedge
- slot
- 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 - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G11/00—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes
- F16G11/04—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes with wedging action, e.g. friction clamps
- F16G11/044—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes with wedging action, e.g. friction clamps friction clamps deforming the cable, wire, rope or cord
- F16G11/048—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes with wedging action, e.g. friction clamps friction clamps deforming the cable, wire, rope or cord by moving a surface into the cable
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Installation Of Indoor Wiring (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
The present invention provides a hook having a frame with a first hole, and preferably both a first hole and second hole, extending therethrough, to accommodate a cable. A first slot lengthwise communicating with the first hole is also provided, through which a cable can be passed transversely. The first hole and the wedge are dimensioned such that the cable is retained in the first hole when the wedge is firmly inserted into it. The two holes can be arranged to intersect so that two cables can be retained in position within respective holes by means of the one wedge.
The hook is particularly useful in bundling logs.
The present invention provides a hook having a frame with a first hole, and preferably both a first hole and second hole, extending therethrough, to accommodate a cable. A first slot lengthwise communicating with the first hole is also provided, through which a cable can be passed transversely. The first hole and the wedge are dimensioned such that the cable is retained in the first hole when the wedge is firmly inserted into it. The two holes can be arranged to intersect so that two cables can be retained in position within respective holes by means of the one wedge.
The hook is particularly useful in bundling logs.
Description
FIELD OF THE INVENTION
This invention relates to a hook useful in connecting two cables or portions of the same cable.
DESCRIPTION OF PRIOR ART
_ In coastal waters, it is a common practice in the logging industry to dump truck loads of logs into waterways for transport-ation by towing to processing plants. Preferably, it is desired to keep the logs in bundles for ease of handling and to minimize loss during towing. A common method of retaining the logs in bundles is to place two 5/8 inch wire rope cables around each bundle of logs, the ends of the cables being joined together by a fastener or hook (sometimes also called a bell, or a clamp, or a thimble). A suitable type of hook is disclosed in Canadian patent No. 629,905 to Binstead et al. However, a difficulty with a device such as the Eoregoing, is that the wire rope cable as a result of use, tends to become kinked or its ends may become frayed, thereby making its insertion or removal Erom the device of -the foregoing patent impossible withou-t cutting the cable. Not only is such wasteful of wire rope cable, but in addition necessitates the pro-visions of a suitable pair of cutters at any site where the logs are being bundled or unbundled.
The above described problem is present not only in hooks of the type described in Canadian patent No. 629,905, but also in hooks which are used to interconnect orthogonal wires of a log bundle. If a cable must be aut in such a situation, it particu- :
larly results in loss of a substantial amount of cable, since the relatively shor-t cut pieces (for example perhaps about 20 feet in length), are not sufficiently long to tie a bundle of logs.
, . -- 1 --: . . . , .:
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:~ ;
'' : '' SUMMARY OF THE INV~NTION
The present invention provides a cable thimble for securing a cable means comprising a frame having a cable receiving hole extending longi-tudinally therethrough, the hole being tapered and of greater size at one end than at the other, a cable insert-ing slot extending longitudinally of the frame at one side thereof in communication with the hole throughout its length; a wedge lengthwise insertable into the hole from its greater sized end, the wedge being substantially correspondingly tapered with the hole and being dimensioned such that a first cable means can be passed through the slot into the hole by relative movement of the thimble and the first cable means laterally and be frictionally retained in the hole between cable re-taining surfaces on the wedge and hole; and means formed in said frame to receive second cable means.
The means to receive a second cable means conveniently may be a second cable receiving hole which has a center spaced apart from the Eirst hole, the second hole transversely intersect-ing the first hole through the cable retaining surface thereof.
According to another feature of the invention, the second hole may be substantially parallel to and spaced apart from the first hole and conveniently may be provided with a shoulder to permit abutment of a collar attached to a free cable end of the second cable means. In one preferred embodiment the first and second cable means is the same cable.
According to a preferred embodiment a cable thimble ; for securing a cable means comprises a frame having a first cable '' "' , , . . ' ,', ' ' 79~63 receiving hole extending longitudinally therethrough, the hole being tapered and of greater size at one end than at the other, a first cable inserting slot extending longitudinally of the frame at one side thereof ln communication with the first hole through-ou-t its length; a wedge lengthwise insertable into the hole from its greater sized end, the wedge being substantially correspond-ingly tapered with the hole and being dimensioned such that a first cable can be passed through the slot into the first hole by relative movement of the thimble and the first cable laterally and be frictionally retained in the first hole between cable retaining surfaces on the wedge and first hole; a second cable receiving hole, the second hole having a center spaced apart from the first hole and extending at an angle thereto to transversely intersect the first hole through the cable retaining surface thereoE; and a second cable inserting slot extending longitudinally of the second cable receiving hole transversely of the frame and being dimensioned such that a second cable can be passed through the second slot into the second hole by relative movement of the thimble and the second cable laterally of the second cable and be frictionally retained in the second hole by pressure exerted by the first cable through the intersection of the first and second holes.
DRAWINGS
Embodiments of the invention will now be described by way of example with reference to the drawings, in which:
FIGURE la is a perspective view of the embodiment of the invention in a bundling hook or thimble, where a loop of ` `~
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cable embraces a bundle of logs;
FIGURE lb is a perspective view of the embodiment of the invention in a guppy hook or thimble;
FIGURE 2 is a perspective view of a thimble;
EIGURE 3 is a side elevation of the thimble of FIGURE 2;
FIGURE 4 is a cross-section along the line 4-4 of FIGURE 3;
FIGURE 5 is a perspective view of another thimble of the present invention;
FIGURE 6 is a side ellevation view of the thimble in FIGURE 5;
FIGURE 7 is a cross-section along the line 7-7 of FIGURE 6; and FIGURE 8 is a perspective view of a wedge as used in the thimble of FIGURES 2 through 4 and FIGURES 5 through 7.
DET~ILED DESCRIPTION OF THE EMBODIMENTS OF THE INVENTION
Referring first to FIGURES la, 2 to 4, a hook, or thimble, 2, of a structure which may be referred to as a bundling hook or thimble, is shown, which has a frame 4. First and second parallel and adjacent holes, 5 and 16 respectively, pass through frame 4. First hole 5 has a transverse shape shown most clearly in FIGURE 4, and has a cable retaining surface 6 as weIl as a surface 8 opposed to cable retaining surface 6. Within an upper half 10 of first hole 5 is provided a wedge 22 slidably mounted therein by means of a pin 20 extending from the frame 4 and slidably engaging in guideway 24 in wedge 22. A first slot 14 is also provided in the frame 4, the first slot 14 bèing of a width such that a cable 32 can be passed transversely there-..~
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through, and into a lower section 12 of the first hole 5 with its surface abutting the cable retaining surface 6 of first hole 5. The wedge 22 has a forward end 30 as well as a wedging surface 28 disposed lengthwise at an angle opposite a cable retaining surface 26 of the wedge 22~ Both the cable re-- -, ; , ' ' :
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taining surface 6 of the first hole 6 and the cable retaining surface 26 of wedge 22 are concave with a radius of curvature equal to that of the cable 32 which is to be retained there-between. In a typical application, cable 32 is about 5/8 inch diameter. The cable retai.ning surface 26 of wedge 22 though is provided with ridges 29 which extend laterally and lengthwise thereon, so as to assist in retaining the cable 32 in a manner which will later be described. The ridges 29 on cable retaining surface 26 of wedge 22 are most clearly seen in FIGURE 8.
The wedge 22 and the first hole 5 are dimensioned such that when the cable 32 is positioned between the cable retaining surface 26 of wedge 22 and the cable retaining surface 6 of first hole 5, the wedge 22 can be firmly inserted into first hole 5 such that it mates with, or abuts the top and side surfaces thereof while the cable retaining surace 26 abuts cable 32 so that cable 32 is retained in first hole 5.
Second hole 16 is provided with'an i.nternal shoulder 18, and is dimensioned such that cable 32, or a second cable 34, again 5/8 inch diameter and normally the same type of cable as cable 32, can pass therethrough. Collar 35 is firmly affixed to a free end of the cable 32 (as seen in FIGURE 1a~ or the second cable 34, and when the device is in use collar 35 abuts internal shoulder 18 of second hole 16.
When the hook 2 is to be employed in the more conven-tional form of bundling hook (see FIGURE 1a), cable 32 with a collar 35 affixed thereto, is passed through second hole 16 until collar 35 abuts internal shoulder 18 of second hole 16 as pre-viously described and shown most clearly in FIGU~E 3. With the wedge 22 pulled rearward a sufficient distance, cable 32 can be .
'. . ' : : ~ .~ . . -: - ', ' ' ' , . : ' ` ' -:' ' '' ' ' :
9~63 looped aro~nd the bundle of logs and readily transversely inserted through ~irst slot 14. When the hook 2 and cable 32 is being used to retain a bundle of logs, then ~ollowing the preceding step hook 2 would be moved in a forward direction until the cable tightened about the bundle o~ logs. At this point, wedge 22 is slid for-wardly, being firmly inserted into the first hole 5 so as to re-tain cable 32, by tapping a rear end 31 of wedge 22 with a hammer.
Due to the shaping of the cable retaining surfaces 26 and 6, cable 32 will be firmly retained, in effect wedged, within first hole 5.
Ridges 2~ on wedge 22, will assist in such firm retention of cable 32. In addition, in a use such as in FIGURE 1a, the logs 42, will tend to pull the cable away from the bundling hook. Such an action, at cable 32, will tend to force wedge 22 more firmly into first hole 5. Thus, the greater the forces tending to pull the cable retained by the hook apart, the greater will be the effect-iveness of the hook in retaining such cable because of the fore-going increased wedging action. When it is desired to unbundle the logs, the first end 30 of wedge 22 can be tapped with a hammer such that wedge 22 will slide rearward. When wedge 22 has been moved sufficiently rearward, cable 32 can be passed transversely through first slot 14.
Referring now to the embodiments of FIGURES 1b, and 5 through 7, a hook, typically referred to as a guppy hook 3 is shown. ~nalogous parts have been numbered the same as in the hook of the embodiment of FIGURES 1a and 2 through 4. Cable 34 is retained in the first hole 5 in the same manner as cable 32 is retained in the ~irst hole 5 of hook 2. A second hole 16 is pro-vided in hook 3, which hole 16 has its centre (which is used throughout this application to refer to lengthwise centre) spaced ~.. ~ ,. , ., - .
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apart from the centre of first hole 5. Second hole 16 extends at an angle of approximately 90~ to first hole 5, and transversely intersects the cab]e retaining surface 6 of first hole 5 resulting in intersection ho]e 37. It will be seen from the drawings that second hole 16 is dimensioned to snugly retain cable 32. By this i~s meant that second hole 16 is not of such a great diameter that cable 32 would ~ove e~tensively transversely within second hole 16. However, limited transverse movement within second hole 16 is possible, the limiting consideration being that cables 32 and 34 must abut one another when in the positions shown in FIGURES 5 to 7, and the wedge 22 firmly inserted in the first hole 5 as shown therein.
Frame 4 of hook 3 also has a second slot 38 in length-wise communication with second hole 16. The second slot as seen most clearly in FIGURE 6, transversely extends at an angle away from the first hole 5 and is sufficiently wide such that cable 32 can be passed transversely therethrough.
A typica] application of hook 3 is shown in FIGURE 1b where it is used to fasten together cables 32 and 34 extending orthogonal to one another. Again, cables 32 and 3~ are the same type and diameter of cable, again typically 5/8 inch diameter. In using hook 3 for the purpose as shown in FIGURE 1b, cable 32 can be first passed transversely through second slot 38 so as to rest within second hole 16. Wedge 22 is drawn rearward so that cable 34 can be passed transversely through first slot 14 to rest upon cable retaining surface 6 of first slot 5. At this point, it will -~
be seen that a portion of the cable 34 will abut a portion of . ' . ' . " , , ~ ' ~
~794~i3 cable 32 through intersecting hole 37. Wedge 22 can then be firm-ly inserted into first hole 5 in a manner previously described in connection with hook 2 such that cable 34 is retained in first hole 5. ~t this point, the abutting portions 40 of the two cables will be pressed firmly together such that cable 32 will be unable to move transversely out o~ second hole 16 through second slot 38.
Thus, cables 32 and 34 are held firmly in position with respect to one another, wedge 22 acting upon cable 34 such that again in-creased force on cable 34 in the direction of the arrow of FIGURE 1b, will serve to more firmly retain cable 34 in position as a result of wedging action of wedge 22. When it is desired to move cable 34 and/or 32 from hook 3, the front end of wedge 22 is tapped with a hammer such that wedge 22 s].ides rearward a suffi-cient distance so that cable 34 can be passed transversely through ~irst slot 14. At this point, cable 32 can also be removed from second hole 16 by passing through second slot 38. If one wished though after wedge 22 has been slid rearward a sufficient distance to no longer wedge cable 34 firmly a~ainst retaining surface 6 of first hole 5, cable 34 could be left passing through first hole 5 with cable 32 then being removed in the manner described.
It will be noted that in connection with hook 2, first hole 5 and second hole 16 should be adjacent one another such that there is only a thin wall of material separating them. If this is not the situation, then as a result of opposite forces upon cables 32 and 34, an undesirable tor~ue would be applied to hook 2 which may result in buckling of cables 32 and 34. Of course, hook 2 ~ay not have a second hole, if desired cable 3~ could be permanently fixed to frame 4 adjacent and parallel to first hole 5. However, . . . - , .
' '' . ' ' . ' ' ' " ' such would be a disadvantageous construction since the cable may even-tually wear requiring replacement of the entire cable and hook.
A possible modifica-tion to hook 3 is to have second hole 16 extending at an angle to first hole 5 which is o-ther than 90 should such be desired for a particular situation. Alternatively, second hole 16 could even be parallel to first hole 5 if one wanted to use -the construc-tion described in connection with hook 3 as a bundling hook in a similar manner as hook 2. Such a construction would have an advantage over hook 2 in that both ends of the cable can be readily removed passing through respective slots. However, such a construction is not particularly preferred since such a mod-ified hook would have to have an intersection "hole" of the para-llel first hole and second hole (in fact a slot in such situation) of sufficient width so that frictional contact between cables 34 and 32 would hold the cable passing through second hole 16 in posi-tion. In order to have sufficient frictional contact for the fore-going, undue transverse strain may have to be applied to the cables (i.e. there may be too much compression of the cables a-t -the point of intersection). Whether such compression would be too much of course would depend upon the particular use of the hook and cables. In this regard, it is to be understood that both hooks 2 and 3 can be dimensioned to be used for purposes other than bund-ling logs, although they are primarily intended for such.
As will be apparent to those skilled in the art in light of the foregoing disclosure, many alterations and modifications are possible in the practice of this invention without departing g _ -.
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' 1~79463 from the spirit or scope thereof. Accordingly, the scope of the invention is to be construed in accordance with the substance defined by the following claims.
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This invention relates to a hook useful in connecting two cables or portions of the same cable.
DESCRIPTION OF PRIOR ART
_ In coastal waters, it is a common practice in the logging industry to dump truck loads of logs into waterways for transport-ation by towing to processing plants. Preferably, it is desired to keep the logs in bundles for ease of handling and to minimize loss during towing. A common method of retaining the logs in bundles is to place two 5/8 inch wire rope cables around each bundle of logs, the ends of the cables being joined together by a fastener or hook (sometimes also called a bell, or a clamp, or a thimble). A suitable type of hook is disclosed in Canadian patent No. 629,905 to Binstead et al. However, a difficulty with a device such as the Eoregoing, is that the wire rope cable as a result of use, tends to become kinked or its ends may become frayed, thereby making its insertion or removal Erom the device of -the foregoing patent impossible withou-t cutting the cable. Not only is such wasteful of wire rope cable, but in addition necessitates the pro-visions of a suitable pair of cutters at any site where the logs are being bundled or unbundled.
The above described problem is present not only in hooks of the type described in Canadian patent No. 629,905, but also in hooks which are used to interconnect orthogonal wires of a log bundle. If a cable must be aut in such a situation, it particu- :
larly results in loss of a substantial amount of cable, since the relatively shor-t cut pieces (for example perhaps about 20 feet in length), are not sufficiently long to tie a bundle of logs.
, . -- 1 --: . . . , .:
, : ,' ' ~ ' ' ..
.
:~ ;
'' : '' SUMMARY OF THE INV~NTION
The present invention provides a cable thimble for securing a cable means comprising a frame having a cable receiving hole extending longi-tudinally therethrough, the hole being tapered and of greater size at one end than at the other, a cable insert-ing slot extending longitudinally of the frame at one side thereof in communication with the hole throughout its length; a wedge lengthwise insertable into the hole from its greater sized end, the wedge being substantially correspondingly tapered with the hole and being dimensioned such that a first cable means can be passed through the slot into the hole by relative movement of the thimble and the first cable means laterally and be frictionally retained in the hole between cable re-taining surfaces on the wedge and hole; and means formed in said frame to receive second cable means.
The means to receive a second cable means conveniently may be a second cable receiving hole which has a center spaced apart from the Eirst hole, the second hole transversely intersect-ing the first hole through the cable retaining surface thereof.
According to another feature of the invention, the second hole may be substantially parallel to and spaced apart from the first hole and conveniently may be provided with a shoulder to permit abutment of a collar attached to a free cable end of the second cable means. In one preferred embodiment the first and second cable means is the same cable.
According to a preferred embodiment a cable thimble ; for securing a cable means comprises a frame having a first cable '' "' , , . . ' ,', ' ' 79~63 receiving hole extending longitudinally therethrough, the hole being tapered and of greater size at one end than at the other, a first cable inserting slot extending longitudinally of the frame at one side thereof ln communication with the first hole through-ou-t its length; a wedge lengthwise insertable into the hole from its greater sized end, the wedge being substantially correspond-ingly tapered with the hole and being dimensioned such that a first cable can be passed through the slot into the first hole by relative movement of the thimble and the first cable laterally and be frictionally retained in the first hole between cable retaining surfaces on the wedge and first hole; a second cable receiving hole, the second hole having a center spaced apart from the first hole and extending at an angle thereto to transversely intersect the first hole through the cable retaining surface thereoE; and a second cable inserting slot extending longitudinally of the second cable receiving hole transversely of the frame and being dimensioned such that a second cable can be passed through the second slot into the second hole by relative movement of the thimble and the second cable laterally of the second cable and be frictionally retained in the second hole by pressure exerted by the first cable through the intersection of the first and second holes.
DRAWINGS
Embodiments of the invention will now be described by way of example with reference to the drawings, in which:
FIGURE la is a perspective view of the embodiment of the invention in a bundling hook or thimble, where a loop of ` `~
. - ' .~ ." "' ' ' '. '' ' ~ ' : .- :. ' ' ~L~7~3~6~
cable embraces a bundle of logs;
FIGURE lb is a perspective view of the embodiment of the invention in a guppy hook or thimble;
FIGURE 2 is a perspective view of a thimble;
EIGURE 3 is a side elevation of the thimble of FIGURE 2;
FIGURE 4 is a cross-section along the line 4-4 of FIGURE 3;
FIGURE 5 is a perspective view of another thimble of the present invention;
FIGURE 6 is a side ellevation view of the thimble in FIGURE 5;
FIGURE 7 is a cross-section along the line 7-7 of FIGURE 6; and FIGURE 8 is a perspective view of a wedge as used in the thimble of FIGURES 2 through 4 and FIGURES 5 through 7.
DET~ILED DESCRIPTION OF THE EMBODIMENTS OF THE INVENTION
Referring first to FIGURES la, 2 to 4, a hook, or thimble, 2, of a structure which may be referred to as a bundling hook or thimble, is shown, which has a frame 4. First and second parallel and adjacent holes, 5 and 16 respectively, pass through frame 4. First hole 5 has a transverse shape shown most clearly in FIGURE 4, and has a cable retaining surface 6 as weIl as a surface 8 opposed to cable retaining surface 6. Within an upper half 10 of first hole 5 is provided a wedge 22 slidably mounted therein by means of a pin 20 extending from the frame 4 and slidably engaging in guideway 24 in wedge 22. A first slot 14 is also provided in the frame 4, the first slot 14 bèing of a width such that a cable 32 can be passed transversely there-..~
~J - 4 -`' ' , ' :'.'.. .. ' ` . ~ :., .. . . . . .
through, and into a lower section 12 of the first hole 5 with its surface abutting the cable retaining surface 6 of first hole 5. The wedge 22 has a forward end 30 as well as a wedging surface 28 disposed lengthwise at an angle opposite a cable retaining surface 26 of the wedge 22~ Both the cable re-- -, ; , ' ' :
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taining surface 6 of the first hole 6 and the cable retaining surface 26 of wedge 22 are concave with a radius of curvature equal to that of the cable 32 which is to be retained there-between. In a typical application, cable 32 is about 5/8 inch diameter. The cable retai.ning surface 26 of wedge 22 though is provided with ridges 29 which extend laterally and lengthwise thereon, so as to assist in retaining the cable 32 in a manner which will later be described. The ridges 29 on cable retaining surface 26 of wedge 22 are most clearly seen in FIGURE 8.
The wedge 22 and the first hole 5 are dimensioned such that when the cable 32 is positioned between the cable retaining surface 26 of wedge 22 and the cable retaining surface 6 of first hole 5, the wedge 22 can be firmly inserted into first hole 5 such that it mates with, or abuts the top and side surfaces thereof while the cable retaining surace 26 abuts cable 32 so that cable 32 is retained in first hole 5.
Second hole 16 is provided with'an i.nternal shoulder 18, and is dimensioned such that cable 32, or a second cable 34, again 5/8 inch diameter and normally the same type of cable as cable 32, can pass therethrough. Collar 35 is firmly affixed to a free end of the cable 32 (as seen in FIGURE 1a~ or the second cable 34, and when the device is in use collar 35 abuts internal shoulder 18 of second hole 16.
When the hook 2 is to be employed in the more conven-tional form of bundling hook (see FIGURE 1a), cable 32 with a collar 35 affixed thereto, is passed through second hole 16 until collar 35 abuts internal shoulder 18 of second hole 16 as pre-viously described and shown most clearly in FIGU~E 3. With the wedge 22 pulled rearward a sufficient distance, cable 32 can be .
'. . ' : : ~ .~ . . -: - ', ' ' ' , . : ' ` ' -:' ' '' ' ' :
9~63 looped aro~nd the bundle of logs and readily transversely inserted through ~irst slot 14. When the hook 2 and cable 32 is being used to retain a bundle of logs, then ~ollowing the preceding step hook 2 would be moved in a forward direction until the cable tightened about the bundle o~ logs. At this point, wedge 22 is slid for-wardly, being firmly inserted into the first hole 5 so as to re-tain cable 32, by tapping a rear end 31 of wedge 22 with a hammer.
Due to the shaping of the cable retaining surfaces 26 and 6, cable 32 will be firmly retained, in effect wedged, within first hole 5.
Ridges 2~ on wedge 22, will assist in such firm retention of cable 32. In addition, in a use such as in FIGURE 1a, the logs 42, will tend to pull the cable away from the bundling hook. Such an action, at cable 32, will tend to force wedge 22 more firmly into first hole 5. Thus, the greater the forces tending to pull the cable retained by the hook apart, the greater will be the effect-iveness of the hook in retaining such cable because of the fore-going increased wedging action. When it is desired to unbundle the logs, the first end 30 of wedge 22 can be tapped with a hammer such that wedge 22 will slide rearward. When wedge 22 has been moved sufficiently rearward, cable 32 can be passed transversely through first slot 14.
Referring now to the embodiments of FIGURES 1b, and 5 through 7, a hook, typically referred to as a guppy hook 3 is shown. ~nalogous parts have been numbered the same as in the hook of the embodiment of FIGURES 1a and 2 through 4. Cable 34 is retained in the first hole 5 in the same manner as cable 32 is retained in the ~irst hole 5 of hook 2. A second hole 16 is pro-vided in hook 3, which hole 16 has its centre (which is used throughout this application to refer to lengthwise centre) spaced ~.. ~ ,. , ., - .
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apart from the centre of first hole 5. Second hole 16 extends at an angle of approximately 90~ to first hole 5, and transversely intersects the cab]e retaining surface 6 of first hole 5 resulting in intersection ho]e 37. It will be seen from the drawings that second hole 16 is dimensioned to snugly retain cable 32. By this i~s meant that second hole 16 is not of such a great diameter that cable 32 would ~ove e~tensively transversely within second hole 16. However, limited transverse movement within second hole 16 is possible, the limiting consideration being that cables 32 and 34 must abut one another when in the positions shown in FIGURES 5 to 7, and the wedge 22 firmly inserted in the first hole 5 as shown therein.
Frame 4 of hook 3 also has a second slot 38 in length-wise communication with second hole 16. The second slot as seen most clearly in FIGURE 6, transversely extends at an angle away from the first hole 5 and is sufficiently wide such that cable 32 can be passed transversely therethrough.
A typica] application of hook 3 is shown in FIGURE 1b where it is used to fasten together cables 32 and 34 extending orthogonal to one another. Again, cables 32 and 3~ are the same type and diameter of cable, again typically 5/8 inch diameter. In using hook 3 for the purpose as shown in FIGURE 1b, cable 32 can be first passed transversely through second slot 38 so as to rest within second hole 16. Wedge 22 is drawn rearward so that cable 34 can be passed transversely through first slot 14 to rest upon cable retaining surface 6 of first slot 5. At this point, it will -~
be seen that a portion of the cable 34 will abut a portion of . ' . ' . " , , ~ ' ~
~794~i3 cable 32 through intersecting hole 37. Wedge 22 can then be firm-ly inserted into first hole 5 in a manner previously described in connection with hook 2 such that cable 34 is retained in first hole 5. ~t this point, the abutting portions 40 of the two cables will be pressed firmly together such that cable 32 will be unable to move transversely out o~ second hole 16 through second slot 38.
Thus, cables 32 and 34 are held firmly in position with respect to one another, wedge 22 acting upon cable 34 such that again in-creased force on cable 34 in the direction of the arrow of FIGURE 1b, will serve to more firmly retain cable 34 in position as a result of wedging action of wedge 22. When it is desired to move cable 34 and/or 32 from hook 3, the front end of wedge 22 is tapped with a hammer such that wedge 22 s].ides rearward a suffi-cient distance so that cable 34 can be passed transversely through ~irst slot 14. At this point, cable 32 can also be removed from second hole 16 by passing through second slot 38. If one wished though after wedge 22 has been slid rearward a sufficient distance to no longer wedge cable 34 firmly a~ainst retaining surface 6 of first hole 5, cable 34 could be left passing through first hole 5 with cable 32 then being removed in the manner described.
It will be noted that in connection with hook 2, first hole 5 and second hole 16 should be adjacent one another such that there is only a thin wall of material separating them. If this is not the situation, then as a result of opposite forces upon cables 32 and 34, an undesirable tor~ue would be applied to hook 2 which may result in buckling of cables 32 and 34. Of course, hook 2 ~ay not have a second hole, if desired cable 3~ could be permanently fixed to frame 4 adjacent and parallel to first hole 5. However, . . . - , .
' '' . ' ' . ' ' ' " ' such would be a disadvantageous construction since the cable may even-tually wear requiring replacement of the entire cable and hook.
A possible modifica-tion to hook 3 is to have second hole 16 extending at an angle to first hole 5 which is o-ther than 90 should such be desired for a particular situation. Alternatively, second hole 16 could even be parallel to first hole 5 if one wanted to use -the construc-tion described in connection with hook 3 as a bundling hook in a similar manner as hook 2. Such a construction would have an advantage over hook 2 in that both ends of the cable can be readily removed passing through respective slots. However, such a construction is not particularly preferred since such a mod-ified hook would have to have an intersection "hole" of the para-llel first hole and second hole (in fact a slot in such situation) of sufficient width so that frictional contact between cables 34 and 32 would hold the cable passing through second hole 16 in posi-tion. In order to have sufficient frictional contact for the fore-going, undue transverse strain may have to be applied to the cables (i.e. there may be too much compression of the cables a-t -the point of intersection). Whether such compression would be too much of course would depend upon the particular use of the hook and cables. In this regard, it is to be understood that both hooks 2 and 3 can be dimensioned to be used for purposes other than bund-ling logs, although they are primarily intended for such.
As will be apparent to those skilled in the art in light of the foregoing disclosure, many alterations and modifications are possible in the practice of this invention without departing g _ -.
,' , `
: ' ~ :: ; . . ' ' .
.
' 1~79463 from the spirit or scope thereof. Accordingly, the scope of the invention is to be construed in accordance with the substance defined by the following claims.
'.` -- 10 . ~ . .
.
Claims (19)
1. A cable thimble for securing a cable means comprising a frame having a first cable receiving hole means extending longitudinally therethrough, said hole means being tapered and of greater size at one end than at the other, a cable inserting slot extending longitudinally of the frame at one side thereof in communication with said hole means throughout its length; a wedge, lengthwise insertable into said hole means from its greater sized end, said wedge being substantially correspondingly tapered with said hole means and being dimensioned such that a first cable means can be passed through said slot into said hole means by relative movement of said thimble and said first cable means laterally and be frictionally retained in said hole means between cable retaining surfaces on said wedge and hole means; and further cable receiving means formed in said frame.
2. A thimble as claimed in claim 1 in which said further cable receiving means is a second cable receiving hole.
3. A thimble as claimed in claim 2 in which said second cable receiving hole has a center spaced apart from said first hole, said second hole transversely intersecting said first hole through the cable retaining surface thereof.
4. A thimble as claimed in claim 2 in which said second hole is substantially parallel to, and spaced apart from, said first hole.
5. A thimble as claimed in claim 4 in which said second hole is provided with a shoulder to permit abutment of a collar attached to a free cable end of a second cable means.
6. A thimble as claimed in claim 5 in which said first cable and said second cable means are one and the same cable.
7. A cable thimble for securing a cable means comprising a frame having a first cable receiving hole extending longitudinally therethrough, said hole being tapered and of greater size at one end than at the other, a cable inserting slot extending longitudinally of the frame at one side thereof in communication with said hole throughout its length; a wedge, lengthwise insertable into said hole from its greater sized end, said wedge being substantially correspondingly tapered with said hole and being dimensioned such that a first cable can be passed through said slot into said hole by relative movement of said thimble and said first cable laterally and be frictionally retained in said hole between cable retaining surfaces on said wedge and hole; a second cable receiving hole, said second hole having a center spaced apart from the first hole, said second hole transversely intersecting said first hole through the cable retaining surface thereof and being dimensioned to snugly accommodate a second cable.
8. A thimble as claimed in claim 7 wherein said second hole intersects said first hole at an angle of approximately 90°.
9. A thimble as claimed in claim 8 wherein said frame has a second slot in lengthwise communication with the second hole, said second slot and the second hole being dimensioned so that said second cable can be passed transversely through the second slot into said second hole.
10. A thimble as claimed in claim 9 wherein the second slot transversely extends at an angle away from the first hole.
11. A cable thimble as claimed in claim 1 or claim 7 in which said tapered hole has its cable retaining surface on one side and a wedge engaging surface on the opposite side, said cable inserting slot being disposed between said retaining and wedge engaging surfaces.
12. A thimble as claimed in claim 1 or claim 7 wherein said wedge is slidably mounted on said frame within the first hole therein.
13. A thimble as claimed in claim 1 wherein the cable retaining surfaces of said wedge and the said first hole are concave with a radius of curvature substantially the same as the cable adapted to be retained therebetween.
14. A thimble as claimed in claim 7 wherein the cable receiving surfaces of said wedge and the first cable retaining hole are concave with a radius of curvature substantially the same as the cable adapted to be retained therebetween.
15. A thimble as claimed in claim 13 wherein the cable retaining surface of said wedge has a plurality of ridges extending laterally and lengthwise thereon.
16. A thimble as claimed in claim 14 wherein the cable retaining surface of said wedge has a plurality of ridges extending laterally and lengthwise thereon.
17. A thimble as claimed in claim 3 or claim 7 wherein the second hole is dimensioned to snugly accommodate a cable of the same diameter as the cable adapted to be retained in the first hole.
18. A cable thimble for securing a cable means comprising a frame having a first cable receiving hole extending longitudinally therethrough, said hole being tapered and of greater size at one end than at the other, a first cable inserting slot extending longitudinally of the frame at one side thereof in communication with said first hole throughout its length; a wedge lengthwise insertable into said first hole from its greater sized end, said wedge being substantially correspondingly tapered with said hole and being dimensioned such that a first cable can be passed through said slot into said first hole by relative movement of said thimble and said first cable laterally and be frictionally retained in said first hole between cable retaining surfaces on said wedge and first hole a second cable receiving hole, said second hole having a center spaced apart from said first hole and extending at an angle thereto to transversely intersect said first hole through the cable retaining surface thereof; and a second cable inserting slot extending longitudinally of the second cable recieving hole transversely of said frame and being dimensioned such that a second cable can be passed through said second slot into said second hole by relative movement of said thimble and and said second cable laterally of said second cable and be frictionally retained in said second hole by pressure exerted by said first cable through said intersection of said first and second holes.
19. A thimble as claimed in claim 18 in which said angle is substantially 90°.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000428903A CA1279463C (en) | 1983-05-25 | 1983-05-25 | Hook |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000428903A CA1279463C (en) | 1983-05-25 | 1983-05-25 | Hook |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1279463C true CA1279463C (en) | 1991-01-29 |
Family
ID=4125327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000428903A Expired - Lifetime CA1279463C (en) | 1983-05-25 | 1983-05-25 | Hook |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1279463C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008096116A1 (en) * | 2007-02-08 | 2008-08-14 | Gripple Limited | Wire termination device |
-
1983
- 1983-05-25 CA CA000428903A patent/CA1279463C/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008096116A1 (en) * | 2007-02-08 | 2008-08-14 | Gripple Limited | Wire termination device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |