Abstract: The instant invention provides a method for reliably separating a selected sheet from a spaced array of sheets transported on a conveyor. The invention continuously maintains vacuum on the conveyors, and uses selectively activated jets directed at the underside of the sheets to divert them for separating. The invention positively controls the destination of discrete, flexible sheets, such as photographic film, by continuously engaging the sheets with another conveyor during separating, sorting, shuffling or the like, as they travel in an array along a conveyor. Positive control of the sheets permits reliable, high speed separating of lightweight, flexible sheets.

Abstract: The instant invention provides a method for reliably separating a selected sheet from a spaced array of sheets transported on a conveyor. The invention continuously maintains vacuum on the conveyors, and uses selectively activated jets directed at the underside of the sheets to divert them for separating. The invention positively controls the destination of discrete, flexible sheets, such as photographic film, by continuously engaging the sheets with another conveyor during separating, sorting, shuffling or the like, as they travel in an array along a conveyor. Positive control of the sheets permits reliable, high speed separating of lightweight, flexible sheets.

Abstract: The instant invention provides an apparatus and method for reliably separating a selected sheet from a spaced array of sheets transported on a conveyor. The invention continuously maintains vacuum on the conveyors, and uses selectively activated jets directed at the underside of the sheets to divert them for separating. The invention positively controls the destination of discrete, flexible sheets, such as photographic film, by continuously engaging the sheets with another conveyor during separating, sorting, shuffling or the like, as they travel in an array along a conveyor. Positive control of the sheets permits reliable, high speed separating of lightweight, flexible sheets.

Abstract: Apparatus and method for producing a novel drawn film by propelling individual carriages along opposed loops from a first speed abutted in stacks in carriage collection sections to a second speed space apart in a drawing section of a tenter frame and to a third speed in stack forming sections where the carriages return to the first speed in the stacks. First primaries positioned adjacent one part of each loop develop electromagnetic waves for engaging synchronous secondaries attached to active carriages to provide controlled spacing of such carriages, and second primaries adjacent another part of the loop develop other electromagnetic waves for engaging hysteresis secondaries attached to active and to passive carriages to provide controlled abutting of the carriages.

Abstract: Apparatus and method for producing a novel drawn film by propelling individual carriages along opposed loops from a first speed abutted in stacks in carriage collection sections to a second speed space apart in a drawing section of a tenter frame and to a third speed in stack forming sections where the carriages return to the first speed in the stacks. First primaries positioned adjacent one part of each loop develop electromagnetic waves for engaging synchronous secondaries attached to active carriages to provide controlled spacing of such carriages, and second primaries adjacent another part of the loop develop other electromagnetic waves for engaging hysteresis secondaries attached to active and to passive carriages to provide controlled abutting of the carriages.

Abstract: The present invention relates to a method and apparatus for automatically preparing one or more stacks of sheets, each stack having at least two substantially straight edges that meet to define a corner and, specifically, where preparing constitutes corner rounding, notching, hole punching or edge marking the stack.

Abstract: The method and apparatus for controlling the travel of a carriage of a linear motor along the motor primary by providing a wedge shaped member adjacent the entrance or exit of the electromagnetic field of the primary.

Abstract: A system useful for controlling multiple secondaries of a linear disposed motor along an elongated path, with the system having a linear synchronous motor with its elongated primary disposed along the elongated path and at least one secondary responsive to the primary with means disposed thereon for attachment to a body to be propelled along the path, a plurality of linear synchronous motor drivers for providing inputs to designated coil windings of the primary for developing a traveling electromagnetic wave along the primary, a driver controller means connected to each motor driver which has plurality of memory sections for storing therein characteristics of waveforms for use in the system of the invention, a central controller for controlling the output of the plurality of driver controller means and a system computer for down loading instructions for the various waveform patterns to the memories of the driver controller means and for overall supervisory control of the system of the invention.

Abstract: A system for propelling individual carriages along an endless path from a first speed abutted in a stack in a carriage collection section, to a second speed spaced apart in an operational section, and to a third speed in a stack-forming section where the carriages return to the first speed in the stack. Novel carriages are propelled by a linear motor wherein each carriage has attached a synchronous and a hysteresis secondary. A first primary positioned adjacent one part of the path develops electromagnetic waves for engaging the synchronous secondaries to provide controlled spacing of the carriages, and a second primary adjacent another part of the path develops other electromagnetic waves for engaging the hysteresis secondaries to provide controlled abutting of the carriages.

Abstract: A system useful for controlling multiple secondaries of a linear disposed motor along an elongated path, with the system having a linear synchronous motor with its elongated primary disposed along the elongated path and at least one secondary responsive to the primary with means disposed thereon for attachment to a body to be propelled along the path, a plurality of linear synchronous motor drivers for providing inputs to designated coil windings of the primary for developing a traveling electromagnetic wave along the primary, a driver controller means connected to each motor driver which has plurality of memory sections for storing therein characteristics of waveforms for use in the system of the invention, a central controller for controlling the output of the plurality of driver controller means and a system computer for down loading instructions for the various waveform patterns to the memories of the driver controller means and for overall supervisory control of the system of the invention.