Other

Thompson Manufacturing Company

Clyde W Thompson

This disclosure provides an apparatus used in combination with an envelope feeder of the type having a frame with a generally horizontal feeder tray and a rack holding a stack of envelopes, the feeder having an endless belt supported on the feeder tray and the feeder serving to deliver envelopes from the stack onto the endless belt, the endless belt moving the envelopes to form a short-height stack at the outer end of the tray where the envelopes may be picked up by a printing press, a flap closure to close the envelope flaps so that open flaps do not interfere with the stacking process, the closure being in the form of an elongated member supported at the feeder tray outer end and having a first upper surface portion inclined upwardly in the direction away from the envelope feeder and a second horizontal upper surface spaced in a direction away from the envelope feeder, the second surface being in a plane parallel to and spaced above the plane of the endless belt.

Flap closer

Apparatus for bending a thin flexible and narrow strip having a flat longitudinally extending base portion and a central longitudinally extending rib, comprising a cylinder mounted on a supporting base and having a helical recess extending from the bottom to the top thereof. The recess extends inwardly into the cylinder a distance slightly less than one-half of the width of the base portion of the strip. A rotatable arm is mounted on a shaft which extends upwardly and concentrically from the top of the cylinder. The arm has mounted thereon a slide member adapted to be moved towards and away from the cylinder. A rotatable wheel is rotatably mounted in the slide member, the wheel having an annular recess therein extending inwardly into the wheel a distance slightly less than one-half of the width of the base portion of the strip, the recess of the wheel being opposite to or in alignment with the recess on the cylinder. Means are provided on the arm for moving the member towards the cylinder so as to engage a strip between the wheel and the cylinder, the sides of the base portion of the strip being received in the recesses of the wheel and cylinder.

Bending apparatus for perforating strips

Apparatus for bending a thin flexible and narrow strip having a flat longitudinally extending base portion and a central longitudinally extending rib projecting upwardly from the base portion at right angles thereto, the upper edge of the rib being sharpened, the strip being of the type adapted to be attached to a printing cylinder and used for perforating or shearing paper sheets being printed, the apparatus being adapted to bend the strip at right angles to the base portion thereof to form a predetermined geometric shape, such as a rectangular shape for cutting rectangular windows in the paper sheets. The apparatus comprises a stationary die mounted on a supporting base. The stationary die is provided with a recess at the lower portion thereof extending around the entire periphery and inwardly into the stationary die a distance slightly less than one-half of the width of the base portion of the strip. A movable die member having a forward flat edge parallel with and movable towards a rear flat edge on the stationary die is provided with a recess extending along a lower portion of the forward flat edge thereof and inwardly therein a distance slightly less than one-half the width of the base portion of the strip and being opposite to the recess in the rear edge of the stationary die. A pair of arms are pivotally connected to the supporting base below and adjacent the side edges of the stationary die, each arm having mounted thereon a slide member adapted to be moved towards and away from the stationary die. A rotatable wheel is rotatably mounted in each slide member on the side thereof towards the stationary die, each wheel having an annular recess therein extending inwardly into the wheel a distance slightly less than one-half of the width of the base portion of the strip, the recess of each wheel being opposite to or in alignment with the recess on the stationary die.

Growing community of inventors

Tulsa, OK, United States of America

Clyde W Thompson