Coil binding machine

Claim 2

In a coil binding machine, a rotary carriage having radially disposed and equidistantly spaced perforated sheet pile holding means, the carriage being indexable in increments so that each sheet pile is brought successively to five stations, means at the first station for feeding the unbound piles perforated along their trailing edges onto the holding means, whereby the perforations are at the outside of the carriage, means at the second station radially outwardly of the sheet piles for aligning the perforations, a coiling tool at the third station radially outwardly of the sheet piles for forming and feeding the spiral wire binder into the perforations, shearing means at said third station for severing said binder in a manner such that the leading end of the next binder is undistorted and will pass freely through the perforations of the next pile, means at the fourth station for trim-cutting and inwardly bending the opposite ends of the binder, and means at the fifth station for removing the bound piles from the carriage.

Claim 3

The combination according to claim 1, said shearing means having a portion which is movable in the general direction of the coil axis.

Claim 4

The combination according to claim 2, said shearing means comprising a pair of plates, one being fixed and the other movable, a pair of holes in said plates through which the coil passes, and means for rocking the movable plate to perform the shearing action.

Claim 5

The combination according to claim 1, further provided with belts for transporting the bound books along bed plates, and means for inverting alternate books comprising a rotary shaft beneath said bed plates, fingers extending radially from said shaft and aligned with spaces between said bed plates, relatively short hooks substantially perpendicular to said fingers and extending above the bed plates when the fingers are substantially horizontal, and means for continuously rotating said shaft in a manner which is synchronized with said belts whereby each alternate book will be stopped by said hooks and inverted by the fingers, said belts transporting said inverted books out of the vicinity of said fingers before they again reach the level of said plates, the books not inverted being carried by said belts past said inverting mechanism while the latter is below the level of said plates.

Claim 6

A mechanism for transporting spiral bound books or the like to a delivery point and inverting alternate books so that they will stack evenly, comprising a plurality of transversely spaced bed plates, a plurality of endless belts having their upper runs resting on said bed plates, a shaft extending transversely below said bed plates, means for continuously rotating said shaft, a plurality of fingers extending radially from said shaft and aligned with the spaces between said plates, a plurality of relatively short hooks on said shaft and aligned with but extending substantially perpendicular to said fingers, said hooks being of such size that they are disposed above said belts when the fingers are horizontal in one position, the driving means for said belts and inverting mechanism being so synchronized that the hooks of the inverting mechanism will periodically stop movement of a book being transported by said belts and said fingers will rise from said spaces and flip said book over onto said belt, the speed of the latter being such that the inverted book will be withdrawn from the vicinity of said fingers before the fingers descend through said spaces.

Claim 7

A mechanism for transporting spiral bound books or the like to a delivery point and inverting alternate books so that they will stack evenly, comprising a plurality of transversely spaced bed plates, a plurality of endless belts having their upper runs resting on said bed plates, a shaft extending transversely below said bed plates, means for continuously rotating said shaft, a plurality of fingers extending radially from said shaft and aligned with the spaces between said plates, a plurality of relatively short hooks on said shaft and aligned with but extending substantially perpendicular to said fingers, said hooks being of such size that they are disposed above said belts when the fingers are horizontal in one position, the driving means for said belts and inverting mechanism being so synchronized that the hooks of the inverting mechanism will periodically stop movement of a book being transported by said belts and said fingers will rise from said spaces and flip said book over onto said belt, the speed of the latter being such that the inverted book will be withdrawn from the vicinity of said fingers before the fingers descend through said spaces.

Claim 8

In combination, a coiling tool for forming and feeding a spiral wire binder into a row of sheet pile perforations, and shearing means for severing said binder in a manner such that the leading end of the next binder is undistorted and will pass freely through the perforations of the next pile, said shearing means comprising a pair of plates, one being fixed and the other movable, a pair of holes in said plates through which the coil passes, and means for rocking the movable plaTe to perform the shearing action.

Claim 9

In combination, a coiling tool for forming and feeding a spiral wire binder into a row of sheet pile perforations, and shearing means for severing said binder in a manner such that the leading end of the next binder is undistorted and will pass freely through the perforations of the next pile, said shearing means comprising a pair of plates, one being fixed and the other movable, a pair of holes in said plates through which the coil passes, and means for rocking the movable plaTe to perform the shearing action.