A tray in tray container of corrugated board material is formed from a pair of pre-formed flat body blanks in a bi-level machine having vertically aligned upper and lower dies in which a mandrel reciprocates vertically. The inner body blanks and outer body blanks are stacked in feed hoppers adjacent the upper and lower dies, respectively, and individually stripped out of their respective hoppers into horizontally disposed positions over their respective dies, substantially simultaneously. The feed directions of the two hoppers are right angularly related to one another and glue stripes are applied to each of the body blanks during their transit from the hopper into the corresponding die. Descent of the mandrel initially forms the upper inner body blank into an erect tray configuration within the upper die and continued downward movement of the mandrel drives the completely formed and glued inner box into contact with the flat outer body blank, the latter then being formed and glued around the inner body blank during subsequent passage of the mandrel into the lower die.
A flip-top box is folded from a one-piece skillet by bringing a contents retainer panel (R) into overlapping relationship with a front panel (C.sub.1); thereafter pressing the skillet into a rectangular opening of a die (70), to cause certain panels of the skillet to stand perpendicular to rear panels of the container and lid, folding portions of the skillet projecting from the die into a plane parallel spaced from the rear panel and causing other portions to enter the die; and pressing the partially folded skillet into a rectangular opening of a second die opposite the first die to fold down the outside panels of the box to complete the box formation.
A paper tray forming machine with an improved blank centering device which consists of at least one finger which is moved upward and toward two passive stops. The finger may be shaped similarly to the blank's edge so that precise positioning occurs during the motion of the fingers.
Apparatus for heating a cardboard blank (2) coated with a synthetic material include an inhibitor (21, 22) which inhibits heat transferred from the synthetic coating to the cardboard blank from raising the temperature of predetermined portions of the cardboard blank beyond a selected value.
A compact facsimile machine comprises a housing having a particular shape. The housing includes a pair of upright side walls and semi-circular and flat walls which are connected as arranged side by side and which extends horizontally between the pair of side walls, and, preferably, it is integrally formed from a reinforced plastic material. With this housing, a roll of recording paper may be stored in the semi-circular wall and a recording device such as a thermal print head may be disposed above the flat wall with an image sensor mounted on the flat wall. More importantly, an optical path from a scanning section for scanning an original document to the image sensor may be defined as folded around the convex surface of the semi-circular wall using a plurality of reflecting mirrors, thereby allowing to make the overall structure small without causing any deterioration in facsimile performance.
An apparatus for constructing multi-piece cartons, comprising a tray member supply hopper, a tray conveyor, a glue station, a web placement and compression station including a reciprocating placer, a preform conveyor, a forming station having at least three vertically aligned mandrels and a carton output conveyor. The apparatus process paperboard cartons for fresh produce and the like. The apparatus is operable in a cartoning mode and a preform mode wherein flat unerected carton preforms are output.
