Assembly for detecting irregular feed conditions

Claim 2

A combination comprising: a. means for moving packages along a path, and b. sensing means located along said path to detect an irregular feed condition for the packages, c. said sensing means including two proximity switches which operate when a magnetic material is disposed a predetermined distance therefrom, d. said two proximity switches being interconnected to provide an interrelated condition and being laterally displaced with respect to each other by an amount effective to operate the proximity switches sequentially under normal feed conditions and to operate the proximity switches simultaneously when an irregular feed condition is present.

Claim 3

A combination as defined in claim 1 wherein means responsive to signals generated by the interrelated condition of the proximity switches of said sensing means is provided to stop the moving of packages along said path, said responsive means including an electrical circuit means for controlling said moving means and a logic circuit connected to receive an input signal from the interrelated condition of the proximity switches and to transmit an output signal to said control circuit means, said logic circuit being present to transmit a first output signal that allows the control circuit means to run the moving means under normal feed conditions and to transmit a second output signal that causes the control circuit means to stop the moving means under irregular feed conditions.

Claim 4

A Wrapping machine comprising the combination: a. means for receiving a package from a package supply work station, said receiving means including means for wrapping the package, b. means for moving packages along a package support means from the package supply work station into said receiving means, and c. sensing means located along the package support means to detect an irregular feed condition for the packages, d. said sensing means including two proximity switches which operate when a magnetic material is disposed a predetermined distance therefrom, e. said two proximity switches being interconnected to provide an interrelated condition and being laterally displaced with respect to each other by an amount effective to operate sequentially under normal feed conditions and to operate simultaneously when an irregular feed condition is present.

Claim 5

A Wrapping machine comprising the combination: a. means for receiving a package from a package supply work station, said receiving means including means for wrapping the package, b. means for moving packages along a package support means from the package supply work station into said receiving means, and c. sensing means located along the package support means to detect an irregular feed condition for the packages, d. said sensing means including two proximity switches which operate when a magnetic material is disposed a predetermined distance therefrom, e. said two proximity switches being interconnected to provide an interrelated condition and being laterally displaced with respect to each other by an amount effective to operate sequentially under normal feed conditions and to operate simultaneously when an irregular feed condition is present.

Claim 6

In a wrapping machine as defined in claim 3 wherein means responsive to signals generated by the interrelated condition of the proximity switches of said sensing means is provided to stop the moving of packages along said path, said responsive means including an electrical circuit means for controlling said moving means and a logic circuit connected to receive an input signal from the interrelated condition of the proximity switches and to transmit an output signal to said control circuit means, said logic circuit being preset to transmit a first output signal that allows the control circuit means to run the moving means under normal feed conditions and to transmit a second output signal that causes the control circuit means to stop the moving means under irregular feed conditions.

Claim 7

An assembly comprising: a. conveyor means for moving articles along a path, b. detecting circuit means including two proximity switches for sensing an irregular feed condition for the articles moving along the path, c. said proximity switches being interconnected with respect to eachother to provide an interrelated condition and being disposed along said path, d. a NAND logic circuit connected to receive an input signal from the detecting circuit means and to transmit an output signal, e. said proximity switches being connected to the NAND logic circuit and sensitive to the physical presence of a package being moved along the path a predetermined spaced distance from the switches, and f. control circuit means being connected to the logic circuit and being responsive to a preselected output signal from the logic circuit to stop the conveyor means from moving articles along the path when an irregular feed condition is detected.

Claim 8

An assembly comprising: a. conveyor means for moving articles along a path, b. detecting circuit means including two proximity switches for sensing an irregular feed condition for the articles moving along the path, c. said proximity switches being interconnected with respect to eachother to provide an interrelated condition and being disposed along said path, d. a NAND logic circuit connected to receive an input signal from the detecting circuit means and to transmit an output signal, e. said proximity switches being connected to the NAND logic circuit and sensitive to the physical presence of a package being moved along the path a predetermined spaced distance from the switches, and f. control circuit means being connected to the logic circuit and being responsive to a preselected output signal from the logic circuit to stop the conveyor means from moving articles along the path when an irregular feed condition is detected.

Claim 9

A combination comprising: a. means for moving packages along a path, b. sensing means located along said path to detect an irregular feed condition for the packages, c. said sensing means including two transducer means which are sensitive to the physical presence of a package being moved a spaced distance therepast, d. said two transducer means being interconnected to provide an interrelated condition and being laterally displaced with respect to each other by an amount effective to operate the transducer means sequentially under normal feed conditions and to operate the transducer means simultaneously when an irregular feed condition is present, and e. means responsive to signals generated by the interrelated condition of the two transducer means of said sensing means to stop the moving of packages along said path, f. said responsive means including an electrical circuit means for controlling said moving means and a logic circuit connected to receive an input signal from the interrelated condition of the transducer means and to transmit an output signal to said control circuit means, g. said logic circuit being preset to transmit a first output signal that allows the control circuit means to run the moving means under normal feed conditions and to transmit a second output signal that causes the control circuit means to stop the moving means under irregular feed conditions.

Claim 10

A combination comprising: a. means for moving packages along a path, b. sensing means located along said path to detect an irregular feed condition for the packages, c. said sensing means including two transducer means which are sensitive to the physical presence of a package being moved a spaced distance therepast, d. said two transducer means being interconnected to provide an interrelated condition and being laterally displaced with respect to each other by an amount effective to operate the transducer means sequentially under normal feed conditions and to operate the transducer means simultaneously when an irregular feed condition is present, and e. means responsive to signals generated by the interrelated condition of the two transducer means of said sensing means to stop the moving of packages along said path, f. said responsive means including an electrical circuit means for controlling said moving means and a logic circuit connected to receive an input signal from the interrelated condition of the transducer means and to transmit an output signal to said control circuit means, g. said logic circuit being preset to transmit a first output signal that allows the control circuit means to run the moving means under normal feed conditions and to transmit a second output signal that causes the control circuit means to stop the moving means under irregular feed conditions.

Claim 11

The combination as defined in claim 6 wherein said logic circuit is a NAND circuit.

Claim 12

In a wrapping machine, including means for wrapping a package the combination comprising: a. a means for receiving a package from a package supply work station, said package to be wrapped in said wrapping means, b. means for moving packages along a package support means from the package supply work station into said receiving means, c. sensing means located along the package support means to detect an irregular feed condition for the packages, d. said sensing means including two transducer means which are sensitive to the physical presence of a package being moved a spaced distance therepast, e. said two transducer means being interconnected to provide an interrelated condition and being laterally displaced with respect to each other by an amount effective to operate sequentially under normal feed conditions and to operate simultaneously when an irregular feed condition is present, and f. means responsive to signals generated by the interrelated condition of the two transducer means of said sensing means to stop the moving of packages along said path, g. said responsive means including an electrical circuit means for controlling said moving means and a logic circuit connected to receive an input signal from the interrelated condition of the transducer means and to transmit an output signal to said control circuit means, h. said logic circuit being preset to transmit a first output signal that allows the control circuit means to run the moving means under normal feed conditions and to transmit a second output signal that causes the control circuit means to stop the moving means under irregular feed conditions.

Claim 13

In a wrapping machine, including means for wrapping a package the combination comprising: a. a means for receiving a package from a package supply work station, said package to be wrapped in said wrapping means, b. means for moving packages along a package support means from the package supply work station into said receiving means, c. sensing means located along the package support means to detect an irregular feed condition for the packages, d. said sensing means including two transducer means which are sensitive to the physical presence of a package being moved a spaced distance therepast, e. said two transducer means being interconnected to provide an interrelated condition and being laterally displaced with respect to each other by an amount effective to operate sequentially under normal feed conditions and to operate simultaneously when an irregular feed condition is present, and f. means responsive to signals generated by the interrelated condition of the two transducer means of said sensing means to stop the moving of packages along said path, g. said responsive means including an electrical circuit means for controlling said moving means and a logic circuit connected to receive an input signal from the interrelated condition of the transducer means and to transmit an output signal to said control circuit means, h. said logic circuit being preset to transmit a first output signal that allows the control circuit means to run the moving means under normal feed conditions and to transmit a second output signal that causes the control circuit means to stop the moving means under irregular feed conditions.

Claim 14

In a wrapping machine as defined in claim 8 wherein said logic circuit is a NAND circuit.