US164978A - Improvement in paper-folding machines - Google Patents

Description

"w. & c. D AN IELS. Paper-Folding Machinel Patented June 29,1875.

THE GRAPHIC C0.PHOT0.-L TH.39 8;.41 PARK PLAOEJLY.

UNITED-STATES EEIoE.

ATENT':

IMPROVEMENT IN PAPER-FOLDING MACHINES.

Specification forming part of Letters Patent No. 164,978, dated June 29, 1875; application filed of Kings and State of New York, have invented anlmprovement in Paper-Folding Machines,

of which the following is a specification:

In an applicationof William Daniels for a patent on folding-machine, a perforatingknife and fingers to support the sheet are described as combined with the folding-blade of a folding-machine. Our present invention relates to an improvement upon the same; and consists in a sheet-holder combined with the fingers, and forming a stripper to remove the sheet from the knife, and serving also as a protector to keepthe operator from injury by the knife.

We combine with the folding and perforating apparatus one or more tongues with inclined cutters, that enter the sheet at the first fold, and over which the folded sheet travels, and the filaments that have been allowed to remain to guide the two parts of the folded sheet are separated by the tongue and cutter as the sheet is folded the second time and passed away.

In the drawing, Figure 1 is a vertical section transversely of the folding-blade, and Fig. 2 is a plan of the parts that fold and separate the sheet. Fig. 3 is a perspective view of the latch for holding the finger-plate, and Fig. 4 is a section of the rollers and tongue in larger size.

The rollers a a and folding-blade b are the same as have usually been employed in fold- Jug-machines, and the conveying-bands, sec- 0nd and third fbldingrollers, and their actua cam that operates this shaft and knife, so

that the same is brought down to perforate the sheet of paper in the line of the first fold,

and said knife acts against the fingers t, as in aforesaid application, and then the knife d is raised before the folding-blade descends; and

June 18, 1875.

as said folding-blade descends its arm pushes back the latch I, that holds up the finger-plate i, and allows the same to swing down out of the way of the folding-blade, and as the said blade b is raised the arm e acts upon the lifter m, and restores the finger-plated to its normal position, ready for the next operation.

One of the special features of the present invention consists in the construction of the combined sheet-holder, stripper, and guard t, which is made as a plate, having one or more slots in it for the passage of the knife d. This plate t is upon an arm or arms, n, from the shaft is of the perforating-knife (I, so as to swing in the same are of a circle, and the hub of the arm n is loose upon the shaft,'and a wedge or block, 0, is connected by a spring arm or lever, 0, and passes into a space provided for it between a projection, 2, upon the arm n and a projection, 3, attached to the said shaft. WVhen the key or wedge 0 is in place the arm n of the plate t is firmly held between the projections 3 and 5 upon the shaft It, so as to move with it, and the plate 2? serves the purpose of a shield to prevent theoperator being injured by the perforatingknife descending upon his hand, because the plate will first come into contact with the hand and arm, and the cutter be supported.

The plate It descends upon the sheet of paper, and holds it at both sides of the line of perforations made bythe knife d, said knife passing through a slot or slots in this plate t. As the plate t descends upon the sheet the wedge-block 0 is drawn out by its lever 0 coming into contact with the fixed stop it. Hence the shaft is is free to turn and allow the knife d to descend and perforate the sheet, after which the shaft is is partially rotated, the knife d is raised, the sheet is stripped from the knife by the plate 2?, and the knife d and plate t are raised clear of the folder I) as it descends, and carries the sheet in between the first pair of rollers 66 and to the conveying-bands, as usual.

The perforating-knife is made of a range of lancet-points, and these separate the paper more or less, and leave filaments that guide the paper as it goes through the folding operation; but, inorder to entirely separate the sheets at the line of the first fold, we employ one or more tongues, 8, each of which is attached at the back end, and projects forward,-

and is turned up between the rollers a a, and the folding-blade is made double where the end of the tongue is located, so that the fold of the sheet is carried down, and the tongue passed between the leaves or folded sheet, as seen in Fig. 4, and the belts of the folding-machine carry the sheet back to the gage t in the folded condition, and with the tongue between the two thicknesses of paper.

An inclined cutting-surface, v, is made in the tongue in the line of the edge of the folded sheet, where such sheet is carried away downward between the second pair of folding-rollers. In this-operation the filaments that served to connect the sheet at the first fold are severed, and the sheet separated at this line. I remark that it will generally be preferable to employ two of these tongues, with the cuttingedges upon the opposite sides, and that the cutter or knife '0 should be made to entirely separate the sheet at the first fold where the tongues enter, as illustrated in the drawing.

The cutting-edge 11 will generally be movathe fold when the movement of the sheet is arrested.

We claim as our invention- 1. The combination, with the perforatingknife d and plate t, forming a holder, a guard, and a clearer, of the Wedge 0 and its actuating-lever, substantially as and for the purposes set forth.

2. The tongue 8, provided with a suitable cutting-edge, '0, combined with the folding mechanism, and applied between the first and secdond folds to separate the paper, as specifie Signed by us this 17th day of June, A. D.

WILLIAM DANIELS.

I CHARLES DANIELS.

Witnesses:

' CHAS. H. SMITH,

HAROLD SERRELL.

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