Apparatus for marking documents

A document marking apparatus comprising:

• a fixed support provided with an impression stamp,
• a reciprocable carriage mounted to move over said support and consisting of two parallel arms secured to one another at one of their ends,
• a pivot shaft extending between said arms at the said one of their ends, said shaft being disposed parallel to the support and arranged to pivot freely in said arms,
• a rotation shaft extending between said arms at the other of their ends, said rotation shaft being parallel to the pivot shaft and arranged to turn freely in said arms,
• a rotatable carrier mounted on said rotation shaft and having mounted thereto an inking roller and a pressure roller which are parallel to said rotation shaft and disposed on diametrically opposite sides of the latter, and adapted to travel across the impression stamp during reciprocation of said carriage,
• a drive motor having a rotary drive shaft parallel to said pivot and rotation shafts,
• a crank arm having one of its ends attached to said drive shaft and its other end attached to said pivot shaft,
• a first pulley fixed to said rotation shaft,
• a second pulley fixed to said pivot shaft, and
• a belt disposed over the two pulleys, whereby rotation of said drive shaft will cause rotation of said crank arm and said pivot shaft to effect via said pulleys and said belt a reciprocation of said carriage and continuous rotation of said carrier for inking of the stamp and marking of a document positioned over the inked impression stamp as said inking roller and impression stamp travel across the stamp.

Apparatus for marking documents in which each document to be marked is brought temporarily into contact with an impression stamp positioned on a fixed support comprising a reciprocable carrier assembly arranged for reciprocating movement across the impression stamp, said assembly including a first movable carrier and a second movable carrier, said second movable carrier having spaced support arms, a rotation shaft secured to said support arms about which the second movable carrier freely rotates, said support arms being rotatable about said shaft, a pair of parallel roller supporting shafts secured to said support arms, said parallel shafts being arranged on either side of the axis of rotation of said second carrier, an inking roller and a pressure roller, said inking and said pressure rollers being freely mounted for rotation on said parallel shafts, said first movable carrier including two parallel arms secured to one another at one of their ends, said second movable carrier being supported by said arms at their other ends, means for pivotally supporting said rotation shaft of said second movable carrier on said first movable carrier,, means for rotatably pivoting said second carrier about the axis of the rotation shaft, and drive means for reciprocating the assembly through a first and a second cycle, said drive means comprising a drive motor having a drive shaft positioned parallel to the rotation shaft and a crank arm connected between the motor drive shaft and the first movable carrier, said crank arm being pivotally connected to said first carrier opposite the end of the first movable carrier which supports the second movable carrier, a pivot shaft passing through the parallel arms of the first movable carrier, said pivot shaft being attached to the end of the crank arm at the point of pivotal connection and being parallel with the drive shaft of the motor, and means for mechanical coupling said pivot shaft and the rotation shaft secured to the support arms, said coupling means being arranged for causing said support arms to pivot 180.degree. about said rotation shaft when the crank performs one complete revolution about the drive shaft of the motor, said mechanical coupling means including a first pulley fixed to the rotation shaft secured to the support arms, a second pulley fixed to the pivot shaft and a belt disposed over the two pulleys, whereby rotation of said drive shaft will cause rotation of said crank arm and said pivot shaft to effect via said pulleys and said belt a reciprocation of said carriage and continuous rotation of said carrier for inking of the stamp and marking of a document positioned over the stamp as said inking roller and impression stamp travel across the stamp.