US298667A - Paper-perforating device - Google Patents

Description

INVENTOR ATTORNEYS.

C. CARLTON.

PAPER PERPORATING DEVICE.

(Modem ,667. Patented May 13, 1884.

l jecting at the open side of the holder.

CORTLAND CARLTON, OF KALAMAZOO, MICHIGAN.

PAPER-PERFORATLNG DEVICE.

SPECIFICATION forming part of Letters Patent No. 298,667, dated May 13, 1884.

Application filed April 13, 1883. (Model.)

To all whom, t may concern:

'Be it known that I, CORTLAND CARLTON, of Kalamazoo, in the county of Kalamazoo and State ofllIichigan, have invented a new and Improved Paper-Perforating Device, of which the following is a full, clear, and exact description.

My invention relates to perforating or cutting devices for separating or partially separating` paper at the time of printing; and the invention consists in certain novel features of construction, as hereinafter described and claimed, having the object to do the work in the best possible manner.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure lis a perspective side view of the perforating device. Fig. 2 is a side view with the side of the holder removed and the perforating-bar exposed. Fig. 3 is a face View of the counter used with the perforator. Fig. 4E is a cross-section on line x as of Fig. 3. Fig. 5 is a perspective View showing the manner of applying the counter to the press-platen, and Fig. 6 is a perspective View showing the perforator as applied to a chase. Fig. 7 is a detail.

The perforating or cutting bar A is loose between the two side plates, a a, of the holder B, and is formed with offsets b b on its lower edge corresponding to similar offsets, c, on the bottom of the holder. Near the ends of the bar are angular slots d d, through which pass pins c c, that are attached to side plates, c, so that the bar is guided by the pins in its movement.

At one end of the holder, and pivoted between the side plates, is a dog orlever, f,which is held in the position shown in full lines in Fig. 2 by a spring, g, one end of the lever pro- The inner end of the lever is formed for contact with the point h on the bar A, and the bar is formed with a curved recess in its end above the point h, for a purpose hereinafter specified. A spring, i, is tted between lugs on the back edge of the bar and on the back of the holder, so that the spring acts to move the bar endwise and force it to its downward position.

The device is to be placed with the type in proper position in the chase, as illustrated in Fig. 6, and is operated by the pressure cylinder or platen of the press acting on the projecting end of lever f,which,being forced down at each impression, causes the endwise and up ward movement of the perforating-bar to the position shown in dotted lines in Fig. 2, the movement being properly guided by the pins c in the slots d. In this raised position the offsets b on the bar are carried upon the ofi"- sets c of the holder, so that the bar has a firm support during the impression. .Ihe bar is raised at the first movement of lever f, and in its further movement, as the platen closes on the type, the lever passes the point h, lout still retains the bar in place. As soon as the pressure is released, the lever is returned to the first position by the spring g, and the bar forced down by spring t', so that the form can be inked without inking the bar.

For acting on the lever f and causing its movement in advance of the impression I employ a block, la, of metal, (shown in Fig. 7,) which is attached to the tympan-sheet Z, Fig. 6, by means of a prong, m, on the block, and prevented from turning by points n,which enter the sheet.

As a counter for the perforating-bar I use a sheet, o, of lead or other soft metal, tted in a sheet-metal frame, p, as shown in Figs. 3 and 4, and attached to the platen by. means of tape ends q and the usual tympan-clamps. The frame and bar are covered by the top tympansheet. l

'The advantage of the metal counter is that it insures a clean cut, while rubber or leather would become soft and tear or disfigure the paper. Vith the metal counter holes are made in it at the first impression, and the perforating-points enter the same holes at every impression thereafter during that piece of work. A clean sharp cut without @tearing is further insured from the fact that the perforating-bar is raised to the same position every time, and the movement completed before the impression is made.

Having thus described my invention, I claim as new and desire to secure by Letters Patentl. The lever f and spring g, in combination with the cutter-bar A, having offsets b, slots d,

IOO

point h, and a curved recess above the point, l -perforator and-pressp1eiten, substantially as the spring c', adapted to force the bar down, and described.

the holder-plates a a, having the offsets c and 4. The block 7c, formed with prong m and pins e, as and for the purpose specied. points n, in combination with a, paper-perfoz 5 2. In paper-perforators, the combination of rator and tympan-sheet of a press-p1eten7 subbar A, formed with offsets, b, holder B,1ieving stantially as described. v

offsets or rests o, and means for causing en up- CORTLAND CARLTON.

.Ward and endwise movement of the bar, sub- Witncsses:

PHILIP A. FREDERICK, JOHN F. GREEN.

stantially as shown and described.

3. The combination of frame p and counter o, of soft metal, provided with tapes q, with a

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