摘要:
Signatures fresh from the printing press are fed in a shingled stream toward and then dropped one by one into a hopper which may feed a gathering chain. The signatures are "broken" (unstuck) by first stacking them edgewise on horizontal support, shingling them in a constant stream by an unusual form of suction feed, bending the shingled stream and thereafter cascading the stream into the hopper.
摘要:
Signatures fresh from the printing press are fed in a shingled stream toward and then dropped one by one into a hopper which may feed a gathering chain.The signatures are "broken" (unstuck) by first stacking them edgewise on a horizontal support, shingling them in a constant stream by an unusual form of suction feed, bending the shingled stream and thereafter cascading the stream into the hopper.
摘要:
Signature feeding machine operable in a run mode or jog mode and having means to time differently the application and disapplication of vacuum to an extractor in accordance with the modes.
摘要:
If a newspaper jacket to be stuffed with a collection of inserts does not timely arrive at the stuffing station the inserts intended therefore are rejected but the machine is not stopped; if the inserts are detected as insufficient in number the ones which are present may be rejected and the jacket may also be rejected.
摘要:
A signature feeding machine of the type having suction grippers for removing a signature from a hopper. A vacuum is applied to the gripper when grabbing a signature. The gripper transports the signature to a rotating cylinder where the gripper releases it by disapplying the vacuum. The machine is operable in two modes; a run mode and a jog or intermittent mode. An adjustable timing control is provided to time differently the application and disapplication of the vacuum in accordance with the particular mode of operation.
摘要:
A swing-up loader for a signature machine serves as an extension for the pile feed mechanism. The loader has its own conveyor belts and drive. When placed in its operating position, the loader adjoins the regular infeed of the signature feeder at a junction. A microswitch senses the height of the signature pile at the junction. When the pile height falls due to removal of signatures at the stockplate, the microswitch calls for movement of the loader's drive belts. This movement transfers signatures on the loader across the junction to the regular infeed of the signature feeder. The loader maintains a full infeed to assure a uniform pressure at the stockplate.
摘要:
Books are produced by feeding juxtaposed webs of printed matter, obtained from rolls, to a knife which cuts the webs to provide juxtaposed sheets in paginated relation; a delivery cylinder may be optionally set to feed the paginated sheets to one of two folders, which respectively fold signatures of different form. The signatures are then delivered to a conveyor which is preferably a saddle conveyor in which event the fold is so made as to result in a lap margin.
摘要:
Books are produced by feeding juxtaposed webs of printed matter, obtained from rolls, past a glue applying means which applies glue between the webs; the webs joined by glue are cut to provide juxtaposed sheets in paginated relation which are then folded to signature form and delivered to a conveyor; preferably the conveyor in a saddle conveyor and the fold is so made as to produce signatures with a lap margin.
摘要:
A three-knife sheet trimmer is so constructed as to separate the drive for the knives (one front knife and two side knives) from the drive for the clamps which hold the sheets (e.g., the sheets of a book) stationary while being trimmed. The knives at the stations are operated out of phase, and the moving masses are therefore balanced compared to the previous form of these trimmers where all knives move in the same direction at the same time. Separating the drives also enables a book to be sooner advanced from the first knife station to the second knife station. This being so, there is a greater allowance of time in which to make the transfer, and hence there is no need to rush the book.The stops at the several knife stations against which a book is advanced may be adjusted simultaneously, and the separate feed means which advance or feed the books first from the first knife station to the second knife station and then out of the second knife station, may be opened or spread apart simultaneously either for re-adjustment to accomodate books of a different size or for the purpose of clearing a jam.
摘要:
A vapor deposition method of coating substrates with a material involves evaporating the end of a wire or rod made of that same material. The end of the wire is inductively or radiantly heated to form a molten convex miniscus thereon which serves as the coating source for the substrates.