Abstract: A slitter having a pivotal head carrying multiple spaced pairs of arbors with said head being liftable to displace the arbors from the pass line of the material.

Abstract: A rotary shearing apparatus for slitting sheet material into a plurality of strips of predetermined width is disclosed. The apparatus comprises a plurality of tool carriages each having upper and lower tool-holding members supporting upper and lower shearing tools, respectively, and mounted for axial movement in a machine frame for ease of positioning of the tool carriages and replacement of the shearing tools when necessary. Mechanisms are provided for adjusting the vertical overlap of the shearing tools and for automatically moving the tool carriages independently of one another at high or low speed to vary the spacing between the tool carriages and thereby adjust the width of the strips to be slit from the sheet material.

Abstract: A shearing arrangement for cutting moving bars in which two counter-rotating knife drums are rotatable in shear stands. These stands are spaced from each other and are located on a base plate. They are connected to each other above the knife drums by a disconnectable yoke. Both knife drums are mounted directly in the shear stands which are each of single-piece construction. The shear stands are inserted into the base plate and are connected to the base plate by quick-disconnect couplings. The quick-disconnect couplings between the shear stands and the base plate may be in the form of press rods, and the base plate may have lateral inclined guide surfaces or prisms for the shear stands. The knife drum is connected to its drive by an easily disengageable coupling which has a hydraulically shifted clutch sleeve.

Abstract: Two versions are disclosed, and each includes a pillar post mounted for castering action in a head which moves relative to the glass sheet. In both versions the pillar post has a bifurcated lower portion, with a rectangular insert provided between the furcations and a glass cutting wheel mounted in the insert. In one version the insert has an upstanding stem releasably retained in a central bore defined in the pillar post, and in the second version the insert has a laterally projecting pin which is releasably retained in a side slot provided in one of the pillar post furcations. In both versions the insert projects beyond the bifurcated pillar post to facilitate removal thereof, and both versions are designed to permit assembly of the insert in its associated pillar post in only one orientation.

Abstract: A duplex slitter is provided with two stationary stations each having one or more pairs of drive shafts rotated on fixed centers and carrying a plurality of slitting and creasing head pairs. Each station is provided with a single mechanism for power adjustment of all head pairs. The mechanism is movable the entire length of the shafts and is selectively engageable and disengageable with each head pair. After the head pairs are in desired longitudinal positions along the shafts, the adjusting mechanism is parked at one end of the shafts outboard of the web path or working area of the station.

Abstract: A light weight, compact roving cutter for chopping fiberglass roving into short fiber segments, and used in conjunction with a hand-held resin spray gun, has a mounting plate containing an air inlet port for driving an air motor carried thereon, a snap-on cutter rotor or roller driven by the air motor and carrying a plurality of blades secured by single fastening means, a friction roller cooperable with the cutter roller and blades thereof for breaking or cutting the roving, means accessible to the operator for adjusting the clearance between the rollers and the contact of the friction roller with the blades while the cutter is operating, and means for matching the discharge pattern of the cut segments of roving to the spray pattern of the resin spray gun, including air jet means supplied with pressurized air separate from that supplied to the motor.

Abstract: A circular saw having a driven shaft carrying a saw disk, said saw disk being linked mechanically with the part of a driving shaft disposed together with the driven shaft in a common casing fixed rigidly and dismountably on a saw carrier. Said part of the driving shaft is coupled with the other part of the same shaft, and mounted in a hollow carrier shaft with a possibility of displacing axially when these parts are being detached. With the above embodiment of the circular saw, bearings of these shafts, exposed in operation to most severe wear, can be replaced relatively quickly.