Method of winding differential coils on a magnetic latching reed switch cross point bobbin

Claim 1

A method of winding primary and secondary energizing coils on a magnetic latching reed switch bobbin having an axial chamber for mounting therein a pair of reed switch capsules wherein the coils are wound with a single continuous strand of coil wire and the winding is effected on automatic coil winding equipment, the bobbin having a base flange at one end adapted for supporting primary and secondary coil terminals and associated contact pins for insertion in a receptacle of a wiring circuit which method comprises attaching the end of the coil wire to a primary coil terminal, winding a primary coil in a predetermined direction in a coil area adjacent the base flange, attaching the wire to a connector post and running the wire from the post to a secondary coil terminal, winding a secondary coil on the primary coil in the same direction, feeding the wire to a coil receiving area remote from the base across an intervening shunt plate, winding a primary coil in that area in the opposite direction and feeding the wire back across the shunt plate and the previously wound coils and connecting it to a primary coil terminal and then to an adjacent secondary coil terminal, feeding the wire across the previously wound coils on the adjacent coil receiving area and across the shunt plate, winding the secondary coil on the primary coil in the remote coil receiving area in the direction as the first coil winding, returning the wire across the shunt plate and the first set of primary and secondary windings to the connecting post, and finally removing the wire section connecting the post with the secondary coil terminal and the wire section connecting the last mentioned primary and secondary coil terminals.

Claim 2

A method of winding primary and secondary energizing coils on a magnetic latching reed switch bobbin having an axial chamber for mounting therein a pair of reed switch capsules wherein the coils are wound with a single continuous strand of coil wire and the winding is effected on automatic coil winding equipment, the bobbin having a base flange at one end adapted for supporting primary and secondary coil terminals and associated contact pins for insertion in a receptacle of a wiring circuit which method comprises attaching the end of the coil wire to a primary coil terminal, winding a primary coil in a predetermined direction in a coil area adjacent the base flange, attaching the wire to a connector post and running the wire from the post to a secondary coil terminal, winding a secondary coil on the primary coil in the same direction, feeding the wire to a coil receiving area remote from the base across an intervening shunt plate, winding a primary coil in that area in the opposite direction and feeding the wire back across the shunt plate and the previously wound coils and connecting it to a primary coil terminal and then to an adjacent secondary coil terminal, feeding the wire across the previously wound coils on the adjacent coil receiving area and across the shunt plate, winding the secondary coil on the primary coil in the remote coil receiving area in the direction as the first coil winding, returning the wire across the shunt plate and the first set of primary and secondary windings to the connecting post, and finally removing the wire section connecting the post with the secondary coil terminal and the wire section connecting the last mentioned primary and secondary coil terminals.

Claim 7

A method of winding differential coils on a hollow bobbin for a magnetic latching reed switch which has terminal forming members on a supporting flange which constitutes a base at one end and axially separated, peripherally slotted coil spacers with a peripherally slotted shunt plate mounting flange dividing the area between the coil spacers so as to define two axially spaced compartments for receiving primary and secondary coils, which method comprises attaching the end of a continuous length of wire to a first coil terminal, threading the wire through a slot in the lowermost coil spacer and winding the wire in a counterclockwise direction on the bobbin in the bottom coil receiving compartment in layers so as to form a bottom coil with the winding beginning and ending adjacent the lowermost spacer, threading the wire through a second slot in the lowermost spacer and attaching the wire to a connector post mounted adjacent the first coil terminal, continuing the wire to a connection with a second coil terminal so as to form a strap between the connector post and said second coil terminal, threading the wire through said second slot in the lowermost coil spacer and winding a secondary coil on the primary coil in a counterclockwise direction, threading the wire through a slot in the shunt plate flange and winding a primary coil in a clockwise direction in the top coil receiving compartment so as to complete the winding adjacent the shunt plate flange, threading the wire through a second slot in the shunt plate flange and down across the outside faces of the coils in the bottom compartment and through a third slot in the lowermost spacer and connecting the wire to a third coil terminal, continuing the wire to a fourth coil terminal so as to form a strap between said third and fourth coil terminals, threading the wire through a fourth slot in the lowermost spacer and upwardly along the outside faces of the bottom coils, and through a third slot in the shunt plate flange, winding the wire in overlying relation about the top primary coil in a counterclockwise direction so as to form a double layer top secondary coil, threading the wire downwardly through a fourth slot in the shunt plate flange and across the outside faces of the bottom coils and through said second slot in said lowermost spacer and connecting the wire to said connector post and removing said strap portions between said third and fourth coil terminals and between said connecting post and said second coil terminal.

Claim 8

A method of winding differential coils on a hollow bobbin for a magnetic latching reed switch which has terminal forming members on a supporting flange which constitutes a base at one end and axially separated, peripherally slotted coil spacers with a peripherally slotted shunt plate mounting flange dividing the area between the coil spacers so as to define two axially spaced compartments for receiving primary and secondary coils, which method comprises attaching the end of a continuous length of wire to a first coil terminal, threading the wire through a slot in the lowermost coil spacer and winding the wire in a counterclockwise direction on the bobbin in the bottom coil receiving compartment in layers so as to form a bottom coil with the winding beginning and ending adjacent the lowermost spacer, threading the wire through a second slot in the lowermost spacer and attaching the wire to a connector post mounted adjacent the first coil terminal, continuing the wire to a connection with a second coil terminal so as to form a strap between the connector post and said second coil terminal, threading the wire through said second slot in the lowermost coil spacer and winding a secondary coil on the primary coil in a counterclockwise direction, threading the wire through a slot in the shunt plate flange and winding a primary coil in a clockwise direction in the top coil receiving compartment so as to complete the winding adjacent the shunt plate flange, threading the wire through a second slot in the shunt plate flange and down across the outside faces of the coils in the bottom compartment and through a third slot in the lowermost spacer and connecting the wire to a third coil terminal, continuing the wire to a fourth coil terminal so as to form a strap between said third and fourth coil terminals, threading the wire through a fourth slot in the lowermost spacer and upwardly along the outside faces of the bottom coils, and through a third slot in the shunt plate flange, winding the wire in overlying relation about the top primary coil in a counterclockwise direction so as to form a double layer top secondary coil, threading the wire downwardly through a fourth slot in the shunt plate flange and across the outside faces of the bottom coils and through said second slot in said lowermost spacer and connecting the wire to said connector post and removing said strap portions between said third and fourth coil terminals and between said connecting post and said second coil terminal.