Detachable flyer bow system, apparatus and methods of using same

A system for securing a flyer bow to a wheel of a wire twisting machine, the wheel having an outer surface and a rotational axis, the system comprising:

• a base having a front side, a back side, an inner side, and an outer side, the outer side comprising a longitudinal recess, the center of the width of the recess defining a longitudinal axis, the recess comprising:
• an inner lateral dimension and an outer lateral dimension, the inner lateral dimension being, greater than the outer lateral dimension, and
• a front lateral dimension and a rear lateral dimension, the front lateral dimension being smaller than the rear lateral dimension;
• and
• an end block attachable to the end of the flyer bow, the end block comprising a recess engagement portion disposed to slidably engage the longitudinal recess;
• wherein the base is sized for fixing to the outer surface of the wheel;
• wherein the longitudinal axis of the recess and the rotational axis of the wheel are substantially coplanar;
• and
• wherein when the end block is attached to the end of the flyer bow and used to secure the flyer bow to the wheel of the wire twisting machine, the recess engagement portion is cooperatively engaged within the longitudinal recess to distribute forces acting in forward and lateral directions over a contact surface between the end block and the base,
• the system further comprising a stop removeably attached to the base, wherein the stop physically blocks the end block from moving backward relative to the base when the stop is attached to the base and the recess engagement portion is engaged with the longitudinal recess, and wherein the recess engagement portion is disengageable from the longitudinal recess when the stop is detached from the base.

In combination, a flyer bow and two end blocks, each end block attached to an end of the flyer bow for securing the end of the flyer bow to a base fixed to a wheel of a wire twisting machine, each wheel having an outer surface and a rotational axis, each base having a front side, a back side, an inner side, and an outer side, the outer side comprising a longitudinal recess, the center of the width of the recess defining a longitudinal axis, the recess comprising an inner lateral dimension and an outer lateral dimension, the inner lateral dimension being greater than the outer lateral dimension, a front lateral dimension and a rear lateral dimension, the front lateral dimension being smaller than the rear lateral dimension, the base is sized and fixed to the outer surface of the wheel such that the longitudinal axis of the recess and the rotational axis of the wheel are substantially coplanar, wherein:

• each end block comprises a recess engagement portion disposed to slideably engage the longitudinal recess of a base;
• and
• wherein when each end block is used to secure the flyer bow to the wheel of the wire twisting machine, the recess engagement portion is cooperatively engaged within the longitudinal recess to distribute forces acting in forward and lateral directions over a contact surface between the end block and the base, and
• wherein the opening of each base is located between the front side of the base and the back side of the base;
• each end block further comprises a front side, a back side, an inner side, an outer side and a notch located between the front side and the back side of the end block, the notch sized to allow at least a portion of the base between the back side of the base and the opening to clear the notch for inward insertion of the end block in the base and outward removal of the end block from the base when that at least one portion of the base is aligned with the notch.

A method of securing a flyer bow to a wire twisting machine, the wire twisting machine comprising a first wheel and a second wheel, the first and second wheels located on opposing sides of the machine, a first base attached to the first wheel and a second base attached to the second wheel, the flyer bow comprising a first end block attached to a first end of the flyer bow and a second end block attached to a second end of the flyer bow, the method steps comprising:

• slidably engaging the first end block with the first base;
• moving apart the second end block from the first end block and the first base;
• slidably engaging the second end block with the second base;
• and
• moving together the second end block and the first end block, wherein when the flyer bow is rotated forces acting in forward and lateral directions on each end block and base are distributed over a contact surface between each end block and base,
• wherein each base comprises an opening to allow inward insertion of at least one part of an end block in the base and outward removal of at least one part of the end block from the base, and each end block comprises a notch to allow the at least one part of the end block to be inwardly inserted in a base and outwardly removed from the base, the method further comprising:
• before the step of slidably engaging the first end block with the first base,
• aligning the first end block with the first base so that the opening of the first base clears the first end block and the notch of the first end block clears the first base,
• inwardly inserting the first end block into the first base;
• and
• before the step of slidably engaging the second end block with the second base,
• aligning the second end block with the second base so that the opening of the second base clears the second end block and the notch of the second end block clears the second base, and
• inwardly inserting the second end block into the second base.

A method of securing a flyer bow to a wire twisting machine, the wire twisting machine comprising a first wheel and a second wheel, the first and second wheels located on opposing sides of the machine, a first base attached to the first wheel and a second base attached to the second wheel, the flyer bow comprising a first end block attached to a first end of the flyer bow and a second end block attached to a second end of the flyer bow, the method steps comprising:

• slidably engaging the first end block with the first base;
• moving apart the second end block from the first end block and the first base;
• slidably engaging the second end block with the second base;
• moving together the second end block and the first end block, wherein when the flyer bow is rotated forces acting in forward and lateral directions on each end block and base are distributed over a contact surface between each end block and base;
• after the step of slidably engaging the first end block with the first base, physically blocking the first end block from moving away from the centre of the machine;
• and
• after the step of slidably engaging the second end block with the second base, physically blocking the second end block from moving away from the centre of the machine,
• wherein:
• the step of physically blocking the first end block from moving away from the centre of the machine comprises:
• rotatably coupling a first plate to the first base at a first position, rotating the first plate relative to the first base about the first position, and securing the first plate relative to a second position of the first base, and
• the step of physically blocking the second end block from moving away from the centre of the machine comprises:
• rotatably coupling a second plate to the second base at a first position of the second base, rotating the second plate relative to the second base about the first position of the second base, and securing the second plate relative to a second position of the second base.