GB1595317A

GB1595317A - Apparatus and method for separating metal wire from a covering of insulating material

Info

Publication number: GB1595317A
Application number: GB24497/77A
Authority: GB
Original assignee: Individual
Current assignee: Individual
Priority date: 1978-05-30
Filing date: 1978-05-30
Publication date: 1981-08-12

Description

(54) APPARATUS AND METHOD FOR SEPARATING METAL WIRE FROM A COVERING OF INSULATING MATERIAL (71) 1, JOHN EDWARDS, a British Subject, formerly of Summerfield Bungalow, Cross Lane Head, now of 8, Bank Street, Bridgnorth, Shropshire WV16 4AJ, do hereby declare the invention, for which I pray that a patent may be granted to me, and the method by which it is to be performed, to be particularly described in and by the following statement: A first aspect of the present invention relates to a method for separating the metal wire and the plastics or other insulating material of electric cable comprising a metal wire conductor and an insulating layer around the wire.In this specification and in the appended claims, the word "cable" is used generically and embraces a single conductive wire with a covering consisting of a single layer of insulating material and also embraces a plurality of conductive wires, each covered by a respective layer of insulating material and all contained within a sheath which may also be of insulating material.

According to the first aspect of the invention, there is provided a method of separating the metal wire and insulating material of an electric cable comprising a metal wire conductor and a layer of insulating material around the wire, wherein the covered wire is squeezed to cause the wire to cut through the insulating material and the insulating material and wire are subsequently pulled apart, one of the wire and insulating material being led around a rotating roll, and being maintained in contact with the surface of that roll and being pulled by friction between the roll and said one of the wire and insulating material.

The covered wire is preferably squeezed between a pair of rolls.

Preferably one of the pair of rolls is also said rotating roll.

The other of the wire and insulating material may be wound onto a core in such a way that a tension is maintained in the wire or insulating material between the core and said pair of rolls.

One of the wire and insulating material is preferably maintained in frictional contact with the rotating roll by a further roll.

The further roll may be biased in a direction substantially towards the axis of said rotating roll.

In a case where the cable comprises a sheath of plastics material containing one or more plastics covered wires, the sheath is preferably cut by a blade and pulled away from the plastics covered wire or wires before the latter is or are squeezed.

According to a second aspect of the invention, there is provided apparatus for carrying out a method according to the first aspect and comprising a pair of rolls adapted to squeeze a plastics covered wire when such wire is passed between them, a further roll adapted to guide an element of the plastics covered wire around one of a pair of rolls, guide means for guiding the plastics covered wire along a path to the rolls and a blade arranged to cut a sheath of plastics covered wire as it passes along said path.

At least one of the rolls may be a driven roll and thereby be capable of drawing the cable along said path, past the blade to the rolls.

There may be provided on opposite sides of said path a pair of feed rolls adapted to feed cable along the path towards the blade.

The guide means may include a support surface adjacent to the blade but on the opposite side of the path thereto and a shoe on the same side of the path as the blade, and upstream thereof, the shoe being arranged to urge towards the support surface cable approaching the blade.

In the preferred construction, one of the pairs of rolls which is adapted to squeeze the plastics covered wire has a smooth peripheral surface and the other of these rolls is driven and has a surface which is knurled or otherwise adapted to grip the plastics covering.

There may be provided a core on which coil the wire separated from the insulating material can be wound, the core comprising a body having an axis about which it is rotated in use, a plurality of bars mounted on the body spaced apart around the axis, each bar being arranged with its length extending longitudinally of the axis and at least one end of each bar being movable between radially inner and radially outer positions, the core further including means for releasably holding said ends in their radially outer positions.

Preferably there is a guide for guiding the wire towards the core, the guide being arranged for reciprocation along a path extending generally in the same direction as the axis of the core and the guide being connected with a member mounted for reciprocation along a rectilinear path, two screws arranged adjacent to the path but parallel thereto, driving means on the member for engaging with a thread of one or another of the screws, means for rotating the screws in such directions that when the driving means is engaged with one screw the member is driven along the path in a first direction and when the driving means is engaged with the other screw the member is driven along the path in a second direction, and control means for maintaining driving means in engagement with one screw whilst the member is moved in said first direction to a predetermined position and then causing the driving means to be disengaged from said one screw and engaged with the other screw.

The invention will now be described, by way of example, with reference to the accompanying drawings wherein: FIGURE 1 shows diagrammatically a front elevation of apparatus in accordance with the second aspect of the invention FIGURE 2 shows diagrammatically a cross-section through a core of the apparatus of Figure 1; FIGURE 3 shows a plan view of a device incorporated in the apparatus of Figure 1 for reciprocating a wire guide; and FIGURE 4 shows a rear elevation of the parts shown in Figure 4.

The apparatus shown in Figure 1 is intended primarily for separating the metal wire and plastics insulating material of an electric cable comprising a plurality of metal wire conductors, each being covered by a respective insulating layer of PVC or other plastics material and a sheath, also formed of PVC or other plastics material, the sheath enclosing all of the plastics covered wires. The cable 10 is unwound from a reel (not shown) adjacent to the left-hand side of the apparatus shown in Figure 1 and the metal wire 11 of the cable passes along a mainly horizontal path to a core 44 adjacent the right-hand side of the apparatus where the wire is wound into a coil, the sheath and plastics covering being removed as the wire travels along the path.

The cable passes from the reel or other source through an input guide 12 mounted on a body 13 of the apparatus and adjustable relative to the body in a horizontal direction transverse to the cable path. To the right-hand side of the input guide, 12 there is provided a pair of feed rolls 14 and 15 which are supported for rotation about respective horizontal axes by suitable bearings carried on the body 13. The rolls 14 and 15 are spaced apart vertically on opposite sides of the path along which the cable 10 passes and are separated by a gap which can be varied according to the thickness of the cable being treated in the apparatus. The bearing for the upper feed roll 14 is slidable towards and away from that of the lower feed roll and an adjusting screw 16 is provided for adjusting the position of the upper feed roll.There is associated with the upper feed roll 14 a handle 17 whereby the upper feed roll, its bearing and the adjusting screw 16 can be moved away from the lower feed roll 15 once the cable has been fed through the apparatus as will be described hereinafter.

The input guide 12 preferably has internal cross-sectional dimensions corres ponging to those of the cable 10 so that the cable is a free sliding fit within the guide but kinks, knots or other disconformities in the cable cannot pass through the guide. Further guide elements may be provided upstream of the guide 12 to straighten kinks and twists in the cable entering the apparatus. The guide 12 is arranged to guide the cable towards the nip between the rollers 15 and 14.

Adjacent to the feed rolls 14 and 15 and at the downstream side thereof, there is provided a channel-shaped member 18, the open mouth of which is presented upwardly and the base of which lies at the underside of the feed path. The base of the channel projects in the downstream direction somewhat beyond the sides of the channel. Associated with the channel 18, there is a shoe 19 which can enter between the side walls of the channel and approach the base thereof. The shoe is urged downwardly by a spring 20, the tension in which can be adjusted by a screw 21. The shoe is somewhat curved along its length, presenting a convex face towards the base of the channel 18. The cable 10 emerging from between the feed rolls 14 and 15 passes between the shoe 19 and the base of the channel 18, the shoe acting to hold the cable in contact with the base of the channel.

At the downstream side of the channel 18, there is disposed a blade 22 having a horizontal cutting edge which intersects the feed path. The blade extends completely across the feed path and is arranged to cut the upper part of the cable sheath away from the remainder of the sheath. The blade has a cutting edge 23 and a heel 24, both of which lie above the projecting end portion of the base of the channel 18. The heel is somewhat closer to the base than is the cutting edge and guides the plastics covered wires of the cable along a path which lies just below the cutting edge 23 so that there is no risk of the cutting edge contacting the metal wires 25 of the cable.

The upper part 26 of the cable sheath passes between the cutting edge 23 and the shoe 19 and is deflected laterally away from the body 13 by a guide 27 disposed above the blade 22. The remainder 28 of the sheath passes from the channel 18 around an idle roller 29 situated below the feed path and then through a nip defined between the underside of the feed roll 15 and a rubber surfaced idle roller 30. The roller 30 is supported by a bearing which is urged by a spring (not shown) towards the axis of the roller 15, in order that the part 28 of the sheath shall be gripped between the rollers 15 and 30 and drawn around the idle roller 29.

During normal operation of the apparatus, the input guide 12, the channel 18 and the blade 22 remain stationary. The guide can be adjusted to ensure that the cable 10 approaching the channel 18 is properly aligned with the channel. The blade can be adjusted towards and away from the channel, can be adjusted by a handle 31 about an axis which is parallel to the feed path of the cable 10 and can be adjusted by a handle 32 about an axis which is perpendicular to the feed path. A clamping screw 33 is provided for holding the handle 32 in the position to which it is set. If the apparatus is required to be used with cable having considerably different dimensions, the input guide 12, channel 18 and shoe 19 may be replaced by parts having different dimensions. To this end, the input guide, channel, shoe and associated parts may be releasably mounted on the body 13.Furthermore, the lower feed roller 15 may be adjustable upwardly and downwardly relative to the body to ensure that cable of different thicknesses can be properly aligned with the channel.

The apparatus further comprises a pair of pressure rolls 34 and 35 which are mounted on the body 13 for rotation about horizontal axes 36 and 37. The pressure rolls define a nip which is aligned with the feed path of the cable 10 and the pressure rolls are spaced apart by a distance which is substantially equal to the diameter of the wire 25. The axis 36 of the upper pressure roll can be adjusted towards and away from the axis 37 of the lower pressure roll by means of an adjustment screw 38. The axis 37 of the lower pressure roll may also be adjustable.

A variable speed electric motor 39 is provided for driving the lower pressure roll 35 and the feed roll 15. The motor is connected with a shaft of the lower pressure roll by a belt and pulley drive 40 and the rolls 35 and 15 are connected by a chain and sprocket drive 41.

The lower feed roll 15 has a diameter slightly larger than the diameter of the pressure rolls 34 and 35 so that the part 28 of the sheath is drawn around the roller 39 under tension. Friction between the cable 10 on the one hand and the guide 12, channel 18 and shoe 19 on the other hand is sufficient to maintain tension in the cable approaching the blade 22 and in the plastics covered wires extending from the blade to the pressure rolls.

As the plastics covered wire passes between the pressure rolls 34 and 35, it is squeezed by these rolls. This squeezing causes the wire to cut through the plastics covering and so enable the covering to be separated from the metal wire. The metal wire passes from the pressure rolls through an output guide 43 to a rotatable core 44 on which the wire is wound into a coil.

A rubber faced roll 42 is mounted adjacent to the lower pressure roll 35 but at a level below the axis 37 so that the rubber faced roll is clear of the metal wire 25 as the latter emerges from the nip between the pressure rolls. The rubber faced roll is supported for free rotation about a horizontal axis by a bearing which is slidable along a guideway 45 formed in the body 13. The length of the guideway extends in a direction from the axis of the roll 42 towards the axis 37. The bearing of the roll 42 is urged by a spring 46 along the guideway towards the axis 37 and there is associated with the bearing a handle (not shown) whereby the rubber faced roll can be drawn away from the roll 35.The rubber faced roll holds the plastics covering which has been removed from the wire 25 in contact with the surface of the lower pressure roll so that, as the latter rotates, friction between the roll and the plastics covering pulls the plastics covering away from the wire.

It is convenient for the plastics covering separated from each of the wires 25 to be maintained in one piece. To this end, the covering is cut through com pletely at one side, the upper side, but is not cut through completely at the lower side of the wire. To achieve this, upper pressure roll 34 has a smooth cylindrical surface; whereas the lower pressure roll 35 has a knurled surface.

A brush 47 is disposed between the output guide 43 and the nip defined by the pressure rolls 34 and 35. This brush removes from the metal wire 25 any filaments of plastics material which tend to adhere to the wire.

Core 44 comprises a hollow, generally cylindrical, body 48 which is mounted on the shaft 49. The shaft is supported in suitable bearings on the body 13 and a belt and pulley drive is provided to transmit drive to the shaft from the motor 39. A friction clutch is also interposed between the motor and the shaft 49 so that, whilst the motor 39 maintains a constant speed, the speed of rotation of the core can decrease somewhat as the diameter of a coil of wire being wound thereon increases.

The body 48 of the core is keyed to the shaft 49. A plurality of rectilinear grooves 50 are formed in the peripheral surface of the body, each groove being parallel to an axis 51 of the shaft 49 and the grooves being spaced apart equally around the axis. Typically, there are eight such grooves. The depth of each groove varies gradually along its length, the deeper end of each groove being adjacent to a free end of the shaft 49. The deeper ends of the grooves penetrate through the wall of the body 48 to a cavity 52 at one end thereof.

Within each groove 50 there is disposed a respective bar 53 which has a uniform rectangular cross-section along its entire length. The depth of each bar is approximately equal to the maximum depth of the grooves. Accordingly, that end of each bar which is disposed in the deeper end of its groove can move beween a radially inner position shown in Figure 2, in which an end portion of the bar is substantially entirely disposed within its groove and a radially outer position in which the bar projects from its groove by a uniform distance along its entire length. For urging the bar towards its radially inner position, there is provided a spring 54 which is connected between a mid-portion of the bar and the body 48. The spring is disposed in a well 55 formed in the body approximately halfway along the groove 50.Movement of the bar in the radially outward direction is limited by a transverse pin 56 which projects from both sides of the bar and engages beneath a cover plate over the well 55, and by a further transverse pin 57 which is engageable with the interior wall of the cavity 52. The cover plate is substantially flush with the peripheral surface of the body 48. The bars are constrained against movement longitudinally of the grooves towards their shallow ends by abutments 58.

The free end portion of the shaft 49 is formed with a screw thread on which there is removably received a boss 59.

The boss presents towards the adjacent end portions of the bars 55 a frust-conical surface 60, the larger diameter part of which is remote from the bars. The boss can be screwed onto the shaft 49 to engage the adjacent ends of the bars 53 and drive these ends radially outwardly. When wire is to be wound onto the core shown in Figure 2, the bars 53 are held in their radially outer positions, in which they lie parallel to axis 51, by the boss 59 and the core is rotated. When the required coil of wire has been formed on the core, rotation is terminated and the boss 59 is screwed away from the bars 53 so that the bars move to radially inner positions under the action of the springs 54. This releases the coil of wire which can then be withdrawn from the free end of the core body 48.

The boss 59 may present a part-spherical surface to engage the ends of bars 53 instead of the frusto-conical surface illustrated. The parts of the bars which are thus engaged may be formed with curved contact surfaces.

The output guide 43 is supported on a carrier 61 for reciprocation along a rectilinear path transverse to the feed path along which the metal wires 25 pass to the core 44. The carrier is guided in a tube 62 and is connected to one end of a lever 63 which is connected to the body 13 by a pivot 64 adjacent to the opposite ends of the lever. In a mid portion of the lever there is formed a longitudinally extending slot 65 in which there is engaged a stud on a sleeve 66. The sleeve is supported on a rod 67 for sliding movement in a direction parallel to the length of the tube 62.

Adjacent to opposite sides of the sleeve 66, there are mounted screws 68 and 69 which are arranged to be rotated in opposite directions by the motor 39.

Driving means is provided on the sleeve 66 for engagement with the thread of either screw to cause the sleeve to be reciprocated along the rod by the screws.

The driving means comprises a pair of arms which extend laterally from the sleeve and are so arranged that when one arm is engaged with the thread of one of the screws 68 and 69, the other arm is just clear of the other screw. Control means is provided for controlling the angular position of the sleeve about the axis of the rod 67 to maintain one arm in engagement with one screw during movement of the sleeve along the rod in one direction and then to engage the other arm with the other screw to move the sleeve along the rod in the opposite direction.

The control means comprises a radially inwardly projecting stud 72 on the sleeve.

This stud engages in an endless groove formed in the rod 67. The groove comprises two limbs 73 and 74 which extend along the rod 67 and are spaced apart angularly about the axis of the rod. Adjacent ends of these limbs communicate by transverse limbs of the groove. When the stud 72 approaches one end of the limb 73, the stud 75 which projects out wardly from the sleeve engages with a spring-loaded stop 76 which yields as the stud 72 proceeds to the end of the limb 73 but urges the stud 72 in a direction towards the limb 74. Accordingly, immediately the stud 72 moves into alignment with the transverse limb of the groove, the sleeve 65 is turned about the axis of the rod 67 until stud 72 lies in the longitudinal limb 74 of its groove and the arm 71 is engaged with the thread of the screw 69.The sleeve is then driven in the opposite direction along the rod 67 until the stud 72 approaches the other end of the limb 74, when it engages with a further spring loaded stop 77 which similarly urges the stud towards the limb 73 of the groove.

The rod 67 and screws 68 and 69 are mounted on a common support which is adjustable along the slot 65 to enable the travel of the output guide 43 to be varied.

As the guide is reciprocated, so the wire which is being wound on the core 44 traverses a selected length of the core.

To separate the metal wire from the plastics sheath and covering of a cable, a leading end portion of the cable is passed through the input guide 12 towards the nip of the feed rolls 14 and 15 whilst the roll 15 is driven by the motor 39. The feed rolls feed the leading end portion of the cable into the channel 18 beneath the shoe 19, past the blade 22 and into the nip between the pressure rolls 34 and 35. As soon as the plastics covered wire has been gripped by the pressure rolls, the upper feed roll 14 can be moved away from the lower feed roll by means of the handle 17. The plastics covering which emerges from between the pressure rolls is separated manually from the leading end portion of the wire until there is sufficient bare wire available to be passed through the output guide 43 and attached to the core 44.The separated plastics covering is then inserted in the nip between the rolls 35 and 42, the roll 42 being moved away from the roll 35 temporarily to facilitate this.

As shown, there may be provided upstream of the input guide 12 a further pair of feed rolls 78 and 79 to assist with feeding the leading end portion of cable into the apparatus. One of these feed rolls is preferably driven from the motor 39 relatively slowly via a free wheel device which enables the rolls 78 and 79 to turn more rapidly when the cable is drawn through the apparatus by the pressure rolls 34 and 35. One of the rolls 78 and 79 may be formed with circumferential grooves to assist with preventing movement of the cable laterally of the feed path.

WHAT I CLAIM IS:- 1. A method of separating the metal wire and insulating material of an electric cable comprising a metal wire conductor and a layer of insulating material around the wire, wherein the covered wire is squeezed to cause the wire to cut through the insulating material and the insulating material and wire are subsequently pulled apart, one of the wire and insulating material being led around a rotating roll, and being maintained in contact with the surface of that roll and being pulled by friction between the roll and said one of the wire and insulating material.

2. A method according to claim 1 wherein the covered wire is squeezed between a pair of rolls.

3. A method according to claim 2 wherein one of the pair of rolls is also said rotating roll.

4. A method according to claim 1 wherein said one of the wire and insulating material is maintained in frictional contact with the rotating roll by a further roll.

5. A method according to claim 4 wherein said further roll is biased in a direction substantially towards the axis of said rotating roll.

6. A method according to claim 2 wherein the other of the wire and insulating material is wound onto a core in such a way that a tension is maintained in the wire or insulating material between the core and said pair of rolls.

7. A method according to any preceding claim wherein the cable comprises a sheath of plastics material containing one or more plastics covered wires and the sheath is cut by a blade and pulled away from the plastics covered wire or wires before the latter is or are squeezed.

8. Apparatus for carrying out a method according to claim 2 and comprising a pair of rolls adapted to squeeze a plastics

**WARNING** end of DESC field may overlap start of CLMS **.

Claims

**WARNING** start of CLMS field may overlap end of DESC **. is provided for controlling the angular position of the sleeve about the axis of the rod 67 to maintain one arm in engagement with one screw during movement of the sleeve along the rod in one direction and then to engage the other arm with the other screw to move the sleeve along the rod in the opposite direction. The control means comprises a radially inwardly projecting stud 72 on the sleeve. This stud engages in an endless groove formed in the rod 67. The groove comprises two limbs 73 and 74 which extend along the rod 67 and are spaced apart angularly about the axis of the rod. Adjacent ends of these limbs communicate by transverse limbs of the groove. When the stud 72 approaches one end of the limb 73, the stud 75 which projects out wardly from the sleeve engages with a spring-loaded stop 76 which yields as the stud 72 proceeds to the end of the limb 73 but urges the stud 72 in a direction towards the limb 74. Accordingly, immediately the stud 72 moves into alignment with the transverse limb of the groove, the sleeve 65 is turned about the axis of the rod 67 until stud 72 lies in the longitudinal limb 74 of its groove and the arm 71 is engaged with the thread of the screw 69.The sleeve is then driven in the opposite direction along the rod 67 until the stud 72 approaches the other end of the limb 74, when it engages with a further spring loaded stop 77 which similarly urges the stud towards the limb 73 of the groove. The rod 67 and screws 68 and 69 are mounted on a common support which is adjustable along the slot 65 to enable the travel of the output guide 43 to be varied. As the guide is reciprocated, so the wire which is being wound on the core 44 traverses a selected length of the core. To separate the metal wire from the plastics sheath and covering of a cable, a leading end portion of the cable is passed through the input guide 12 towards the nip of the feed rolls 14 and 15 whilst the roll 15 is driven by the motor 39. The feed rolls feed the leading end portion of the cable into the channel 18 beneath the shoe 19, past the blade 22 and into the nip between the pressure rolls 34 and 35. As soon as the plastics covered wire has been gripped by the pressure rolls, the upper feed roll 14 can be moved away from the lower feed roll by means of the handle 17. The plastics covering which emerges from between the pressure rolls is separated manually from the leading end portion of the wire until there is sufficient bare wire available to be passed through the output guide 43 and attached to the core 44.The separated plastics covering is then inserted in the nip between the rolls 35 and 42, the roll 42 being moved away from the roll 35 temporarily to facilitate this. As shown, there may be provided upstream of the input guide 12 a further pair of feed rolls 78 and 79 to assist with feeding the leading end portion of cable into the apparatus. One of these feed rolls is preferably driven from the motor 39 relatively slowly via a free wheel device which enables the rolls 78 and 79 to turn more rapidly when the cable is drawn through the apparatus by the pressure rolls 34 and 35. One of the rolls 78 and 79 may be formed with circumferential grooves to assist with preventing movement of the cable laterally of the feed path. WHAT I CLAIM IS:-

1. A method of separating the metal wire and insulating material of an electric cable comprising a metal wire conductor and a layer of insulating material around the wire, wherein the covered wire is squeezed to cause the wire to cut through the insulating material and the insulating material and wire are subsequently pulled apart, one of the wire and insulating material being led around a rotating roll, and being maintained in contact with the surface of that roll and being pulled by friction between the roll and said one of the wire and insulating material.

covered wire when such wire is passed between them, a further roll adapted to guide an element of the plastics covered wire about one of the pair of rolls, guide means for guiding the plastics covered wire along a path to the rolls and a blade arranged to cut a sheath of the plastics covered wire as it passes along said path.

9. Apparatus according to claim 8 wherein at least one of the pairs of the rolls is a driven roll.

10. Apparatus according to claim 8 or claim 9 wherein there is provided on opposite sides of said path a pair of feed rolls adapted to feed cable along the path towards the blade.

11. Apparatus according to any one of claims 8 to 10 wherein the guide means includes a support surface adjacent to the blade but on the opposite side of the path thereto and a shoe on the same side of the path as the blade and upstream of the blade, the shoe being arranged to urge towards the support surface a cable approaching the blade.

12. Apparatus according to any one of claims 8 to 11 wherein one of the pair of rolls which is adapted to squeeze the plastics covered wire has a smooth peripheral surface and the other of these rolls is driven and has a surface which is knurled or otherwise adapted to grip the plastics covering.

13. Apparatus according to any one of Claims 8 to 12 wherein there is provided a core on which coil the wire separated from the insulating material can be wound, the core comprising a body having an axis about which it is rotated in use, a plurality of bars mounted on the body spaced apart around the axis, each bar being arranged with its length extending longitudinally of the axis and at least one end of each bar being movable between radially inner and radially outer positions, the core further including means for releasably holding said ends in their radially outer positions.

14. Apparatus according to Claim 13 wherein there is provided a guide for guiding the wire towards the core, the guide being arranged for reciprocation along a path extending generally in the same direction as the axis of the core and the guide being connected with a member mounted for reciprocation along a rectilinear path, two screws arranged adjacent to the path but parallel thereto, driving means on the member for engaging with a thread of one or other of the screws, means for rotating the screws in such directions that when the driving means is engaged with one screw the member is driven along the path in a first direction and when the driving means is engaged with the other screw the member is driven along the path in a second direction, and control means for maintaining driving means in engagement with said one screw whilst the member is moved in said first direction to a predetermined position and then causing the driving means to be disengaged from said one screw and engaged with the other screw.

15. A method substantially as herein described with reference to the accompanying drawings of separating the metal wire and insulating material of an electric cable.

16. Apparatus substantially as herein described with reference to and as shown in Figures 1 and 2 of the accompanying drawing.