Letterpress printing machine
OwnerKeith Mason Oddyinventor
Life of this patent
Estimating the term…
Abstract
Apparatus used, inter alia, for the production of printed labels employing self-adhesive stock mounted on a backing sheet. The labels are chosen as regards content or layout and as regards width by the user, the apparatus being capable of producing labels of any kind. The blank stock is fed through a printing device and thereafter through a rotary die-cutter. The printed and die-cut stock is then fed to a location at which the backing sheet supporting the printed labels are separated from the waste paper. At said location, an abrupt change of direction in the path of travel is imparted to the backing sheet.
Claims10
A rotary letterpress label making machine for making labels from a laminated strip formed of a paper web and a cover web in superposed relation with the side of the paper web facing the cover web coated with adhesive while the other side of the paper web is uncoated, said machine comprising:
- a. a frame through which the strip moves from a supply reel;
- b. rotary printing means in the frame operable for printing label matter in discrete label regions on the uncoated side of the paper web;
- c. die cutting means in the frame operable for cutting through the paper web only and along lines which form closed paths about the label regions to separate the paper web into a continuous waste matrix and discrete label elements;
- d. means driving said printing means and die cutting means in synchronism;
- e. a support member engaging the cover web side of the strip along a region extending transversely of the strip downstream from the die cutting means and forming a deviating region wherein the cover web and the printed labels thereon is separated from the waste matrix of the paper web;
- f. a first guide means engaging the uncoated side of said paper web near said region and guiding the waste matrix in a first direction away from said deviating region;
- g. a second guide means spaced downstream from said first guide means engaging the label side of said cover web and guiding the cover web with the labels thereon away from said deviating region in a second direction, said first and second directions diverging in respectively opposite senses from the path of the strip from said die cutting means to said deviating region;
- and
- h. first and second wind-up means in the frame engaging the matrix and the cover web respectively and driven for reeling up the matrix and the cover web simultaneously while holding the matrix and cover web taut between the die cutting means and the wind-up means, said second guide means being spaced from said deviating region in a direction perpendicular to the plane of said strip to prevent the said first guide means for engaging the said label elements and thereby damaging the printing thereon.
Dependencies are inferred from the claim text.