This safety ink is useful for printing a background of fine lines or dots on a document of value, such as a bank check. The background extends over an area which is adapted to be written upon. If the area in question is written upon and an attempt is thereafter made to eradicate the writing, the background changes color, thereby making it obvious upon visual inspection that an attempt has been made to alter the writing. The ink includes a dye which is soluble and bleachable and a fluorescent pig...

A document feeding device is described for generating a singulated flow of documents, such as mail pieces from a stack of documents. The documents may then be sorted to destination storage areas based upon the address information which each document bears. The present device is especially useful in processing mail flats. The double feeding of documents is substantially prevented by the device which effects the continued separation of the documents in a plurality of stages while they are all in a...

A document authentication apparatus for optically scanning document paper to verify the presence of colored fibers in the paper and for indicating the authenticity of the document if a predetermined number of fibers is present. The apparatus reflects white light off of the document and filters the white light into components of red and blue light. The red and blue light components are each incident on a photomultiplier tube that is connected to one channel of a signal processing circuit. The sig...

A tape product for use in attaching shipping documents (such as packing slips, sales slips, invoices, letters) or the like to the outside of various containers with the tape being transparent and including a sticky adhesive material on the back side thereof with one or more separate coated layers also on the back side of the tape, said coated layers comprising in one embodiment a first layer of backward printed letters which are readable when the tape is in position on a container and a second l...

Apparatus for the telereproduction of documents transmitted in the form of electrical signals emanating from the line-by-line scanning of the original and modulating a carrier or sub-carrier wave, the demodulated video signals being applied to the scanning element of the reproduction apparatus synchronized with the scanning element of the emitter, the apparatus comprising a memory in which is stored the video voltage emanating from demodulation of the signals received, and means for removing the...

A document which can be verified as to its authenticity has within at least two adjoining surface areas two similar patterns of surface elements at least some of which are elongated, the pattern of one surface area being displaced in relation to that of the other surface area.

Apparatus and a method for fully destroying papers, packaged paper and ot documents or combustibles in a safe.

A document separating and feeding apparatus utilizes a retractable and reciprocating separator head of the suction type and is provided with selectively actuable latch means. When actuated, the latch means causes the separator head to be maintained in a retracted position without interrupting the reciprocating motion of the head. Also, mounted on the head is a member with outwardly extending serrated edges. The coaction of the serrated edges and the suction of the head is used to separate and fe...

A method and apparatus for destroying documents in which opposed slitter rollers are provided which slit a document into longitudinal strips while the rollers are provided with means for cutting each longitudinal strip into a plurality of short sections.

The present disclosure describes a technique for prevening collisions and jams of closely spaced documents, such as mail pieces which vary in size and weight, as they enter a stacking mechanism at high speed in a single file. Means are provided which are timed to impart a rotary motion about a vertical pivot point to each document as it approaches the stationary stack. Such motion insures that the leading edge of a succeeding document does not collide with the trailing edge of the preceeding doc...