US2842202A - Perforating strip - Google Patents
Perforating strip Download PDFInfo
- Publication number
- US2842202A US2842202A US54346355A US2842202A US 2842202 A US2842202 A US 2842202A US 54346355 A US54346355 A US 54346355A US 2842202 A US2842202 A US 2842202A
- Authority
- US
- United States
- Prior art keywords
- strip
- teeth
- perforating
- base
- perforating strip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/929—Tool or tool with support
- Y10T83/9372—Rotatable type
- Y10T83/9408—Spaced cut forming tool
Definitions
- This invention relates to improvements in means for perforating paper stock as it is being fed through an offset or lithographic press and particularly relates to a novel perforating strip which is adapted to be used on a cylindrical offset press.
- the principal object of this invention is to accomplish the perforating operation simultaneous with the transfer of the inked image from the rubber blanket to the paper.
- a primary object of this invention is to provide a perforating strip which can be cemented on an impression cylinder of an ofiset press.
- a further object of this invention is to provide a perforating strip which can be formed in an elongated piece and sectioned as desired and which can, therefore, be of any desired length and is formed of firm and bendable material so as to be conformable to any surface contour.
- a still further object of this invention is to provide a perforating strip which includes a flat base having perpendicularly disposed teeth on one face or side surface, the teeth being contiguously arranged along the longitudinal center line of the base or along one longitudinal side edge thereof, depending upon the desired spacing of the perforations with respect to the printed portion of the paper.
- Figure l is a perspective view of the perforating strip of this invention.
- Figure 2 is a perspective view of a modified form of perforating strip
- Figure 3 is a fragmentary end elevational view of an offset impression cylinder and cylindrical platen, the perforating strip of this invention being shown attached to the impression cylinder in use for perforating the paper stock, as it passes between the cylinders;
- Figure 4 is a transverse cross-sectional view of the strip of Figure 1, and,
- Figure 5 is a transverse cross-sectional view of the strip of Figure 2.
- the perforating strip is formed in a continuous strip from a suitable firm and bendable material, such as thin steel stock.
- the strip 10 includes a flat base 12 which has opposing flat or planar faces or side surfaces 14 and 16.
- the base has beveled longitudinal side edges 18 and the face 14 is formed with perpendicular teeth 20.
- the teeth are contiguously arranged and are integral with the base.
- Each of the teeth is triangular in elevation and is composed. of converging fiat side surfaces 22 and parallel, triangular, front and back surfaces 24.
- the teeth terminate in a common plane and are contiguous at their bases.
- Each of the teeth is identical in size and shape.
- the teeth are arranged in alignment and extend medially of the base along the longitudinal center line thereof.
- the base is 71000 of an inch in thickness and is approximately one eighth of an inch wide and the teeth are approximately 5 of an inch high. Such proportions are shown enlarged in Figure 4.
- a modified form of strip 10a is shown in Figures 2 and 5, wherein the same exemplary dimensions prevail.
- the strip 10a includes a base 12a from the outer face 14:; of which teeth 20a outstand.
- the teeth 2011 are formed along the longitudinal side-edge 18a of the base.
- Figures 1 and 2 are thus identical except for the placement of the teeth.
- the teeth extend along the longitudinal center line, while in Figure 2 the teeth extend along one of the longitudinal side edges.
- the strip 10 is used, while if it is desired or required to perforate right up against the printed portion of the sheet, the strip 10a is used.
- strip 10 or 10a is cemented in circumposed fashion on the impression cylinder A.
- the cylindrical platen C is covered with the standard rubber blanket D into which the teeth of the strip may extend when penetrating or cutting through the sheet B being perforated.
- Either the base 12 or 12a may be formed with a series of longitudinally aligned, vertical, through and through apertures 26 to act as anchors for glue or cement.
- a perforating strip for circumposed attachment to an impression cylinder of an oifset press comprising an elongated flat thin base formed from extremely thin and bendable material and having opposing flat surfaces and a series of integral teeth perpendicularly formed on one of the surfaces and extending in contiguous alignment along the surface, and the teeth being triangular and having contiguous bases bottomed on the surface and having opposing flat slightly upwardly converging ends and opposing sides which converge at their upper ends to form sharp apexes which terminate in a common plane.
Description
July 8, 1958 H. s. BOYD 2,842,202
PERFORATING STRIP Filed Oct. 28, 1955 PERFURATHNG STRIP Harry S. Boyd, Tulsa, Okla.
Application October 20, 1955, Serial No. 543,463
1 Claim. ((31. 164-100) This invention relates to improvements in means for perforating paper stock as it is being fed through an offset or lithographic press and particularly relates to a novel perforating strip which is adapted to be used on a cylindrical offset press.
The principal object of this invention is to accomplish the perforating operation simultaneous with the transfer of the inked image from the rubber blanket to the paper.
A primary object of this invention is to provide a perforating strip which can be cemented on an impression cylinder of an ofiset press.
A further object of this invention is to provide a perforating strip which can be formed in an elongated piece and sectioned as desired and which can, therefore, be of any desired length and is formed of firm and bendable material so as to be conformable to any surface contour.
A still further object of this invention is to provide a perforating strip which includes a flat base having perpendicularly disposed teeth on one face or side surface, the teeth being contiguously arranged along the longitudinal center line of the base or along one longitudinal side edge thereof, depending upon the desired spacing of the perforations with respect to the printed portion of the paper.
The foregoing and ancillary objects are attained by this invention, the best known forms of which are set forth in the following description and illustrated in the accompanying drawing, wherein;
Figure l is a perspective view of the perforating strip of this invention;
Figure 2 is a perspective view of a modified form of perforating strip;
Figure 3 is a fragmentary end elevational view of an offset impression cylinder and cylindrical platen, the perforating strip of this invention being shown attached to the impression cylinder in use for perforating the paper stock, as it passes between the cylinders;
Figure 4 is a transverse cross-sectional view of the strip of Figure 1, and,
Figure 5 is a transverse cross-sectional view of the strip of Figure 2. V I
Referring now more particularly to the accompanying drawing and initially to Figures 1 and 4, the perforating strip is formed in a continuous strip from a suitable firm and bendable material, such as thin steel stock. The strip 10 includes a flat base 12 which has opposing flat or planar faces or side surfaces 14 and 16. The base has beveled longitudinal side edges 18 and the face 14 is formed with perpendicular teeth 20. The teeth are contiguously arranged and are integral with the base. Each of the teeth is triangular in elevation and is composed. of converging fiat side surfaces 22 and parallel, triangular, front and back surfaces 24. The teeth terminate in a common plane and are contiguous at their bases. Each of the teeth is identical in size and shape. The teeth are arranged in alignment and extend medially of the base along the longitudinal center line thereof.
As one example of dimensions, the base is 71000 of an inch in thickness and is approximately one eighth of an inch wide and the teeth are approximately 5 of an inch high. Such proportions are shown enlarged in Figure 4.
A modified form of strip 10a is shown in Figures 2 and 5, wherein the same exemplary dimensions prevail. The strip 10a includes a base 12a from the outer face 14:; of which teeth 20a outstand. The teeth 2011 are formed along the longitudinal side-edge 18a of the base.
The forms of Figures 1 and 2 are thus identical except for the placement of the teeth. In Figure 1 the teeth extend along the longitudinal center line, while in Figure 2 the teeth extend along one of the longitudinal side edges. In this regard, where space is available, on either side of the strip, the strip 10 is used, while if it is desired or required to perforate right up against the printed portion of the sheet, the strip 10a is used.
In use either strip is identically attached and employed and, as shown in Figure 3, strip 10 or 10a is cemented in circumposed fashion on the impression cylinder A. The cylindrical platen C is covered with the standard rubber blanket D into which the teeth of the strip may extend when penetrating or cutting through the sheet B being perforated.
Either the base 12 or 12a (as shown in Figure 2) may be formed with a series of longitudinally aligned, vertical, through and through apertures 26 to act as anchors for glue or cement.
While the best known forms of this invention have been described herein and shown in the drawing, other forms may be commercially realized as come within the scope of the invention as defined in the appended claim.
What is claimed is:
As an article of manufacture, a perforating strip for circumposed attachment to an impression cylinder of an oifset press, comprising an elongated flat thin base formed from extremely thin and bendable material and having opposing flat surfaces and a series of integral teeth perpendicularly formed on one of the surfaces and extending in contiguous alignment along the surface, and the teeth being triangular and having contiguous bases bottomed on the surface and having opposing flat slightly upwardly converging ends and opposing sides which converge at their upper ends to form sharp apexes which terminate in a common plane.
References Cited in the tile of this patent UNITED STATES PATENTS 1,075,781 Goldschmidt Oct. 14, 1913 2,695,205 Carden Nov. 23, 1954 FOREIGN PATENTS 26,549 Great Britain Nov. 27, 1911 462,244 Canada Ian. 3, 1950 Patented July 8, 1958
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US54346355 US2842202A (en) | 1955-10-28 | 1955-10-28 | Perforating strip |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US54346355 US2842202A (en) | 1955-10-28 | 1955-10-28 | Perforating strip |
Publications (1)
Publication Number | Publication Date |
---|---|
US2842202A true US2842202A (en) | 1958-07-08 |
Family
ID=24168168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US54346355 Expired - Lifetime US2842202A (en) | 1955-10-28 | 1955-10-28 | Perforating strip |
Country Status (1)
Country | Link |
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US (1) | US2842202A (en) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3132540A (en) * | 1961-11-29 | 1964-05-12 | Harry S Boyd | Method for making perforating strips |
US3147658A (en) * | 1961-11-29 | 1964-09-08 | Harry S Boyd | Apparatus for perforating sheets |
US3431847A (en) * | 1967-03-31 | 1969-03-11 | George B Smith | Perforating printing improvement |
US3593987A (en) * | 1968-03-11 | 1971-07-20 | Bernard J Garber | Method of making a book |
JPS5063882U (en) * | 1973-10-09 | 1975-06-10 | ||
EP0085502A1 (en) * | 1982-01-29 | 1983-08-10 | Dobson Park Industries Plc | Toy printing apparatus |
WO1983004004A1 (en) * | 1982-05-17 | 1983-11-24 | Rolf Schellenberg | Method and device for perforating, punching or grooving paper and cardboard in a rotary press |
US4778165A (en) * | 1986-04-30 | 1988-10-18 | Bielomatik Leuze Gmbh & Co. | Apparatus for folding and cutting web stacks |
US4936214A (en) * | 1987-01-09 | 1990-06-26 | Innovative Graphic Industries | Apparatus for adapting offset duplicator machines to accomodate numbering, printing, scoring, perforating and like device |
US4962686A (en) * | 1986-05-27 | 1990-10-16 | Harry Boyd | Perforating strip for printing presses |
US4972747A (en) * | 1986-05-27 | 1990-11-27 | Harry Boyd | Perforating strip for printing presses |
US5117721A (en) * | 1990-10-29 | 1992-06-02 | Montrose Franklin C | Method of forming perforating rule and blades |
US5123347A (en) * | 1991-05-14 | 1992-06-23 | Brown William R | Scoring or perforating bar for offset presses |
US5228388A (en) * | 1991-05-14 | 1993-07-20 | Brown William R | Scoring or perforating bar for offset presses |
EP0832734A2 (en) | 1996-09-30 | 1998-04-01 | Winkler & Dünnebier Maschinenfabrik und Eisengiesserei GmbH | Method and apparatus for producing transverse precreases, in particular on envelope blanks |
US5868057A (en) * | 1996-07-23 | 1999-02-09 | Western Printing Machinery Company | Perforation rule for rotary cutting system |
US20110036058A1 (en) * | 2008-02-07 | 2011-02-17 | Howdeshell Ii Dwight E | Cutting blades and assemblies |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB191126549A (en) * | 1911-11-27 | 1912-11-27 | Charles Cooper | Improvements in or relating to Printers' and the like Rules. |
US1075781A (en) * | 1907-01-22 | 1913-10-14 | Goldschmidt Detinning Company | Apparatus for preparing tinned sheet-iron boxes, &c., for detinning. |
CA462244A (en) * | 1950-01-03 | International Cellucotton Products Company | Severing wadding material to form sanitary napkin pads | |
US2695205A (en) * | 1952-08-26 | 1954-11-23 | Acme Visible Records Inc | Perforating apparatus |
-
1955
- 1955-10-28 US US54346355 patent/US2842202A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA462244A (en) * | 1950-01-03 | International Cellucotton Products Company | Severing wadding material to form sanitary napkin pads | |
US1075781A (en) * | 1907-01-22 | 1913-10-14 | Goldschmidt Detinning Company | Apparatus for preparing tinned sheet-iron boxes, &c., for detinning. |
GB191126549A (en) * | 1911-11-27 | 1912-11-27 | Charles Cooper | Improvements in or relating to Printers' and the like Rules. |
US2695205A (en) * | 1952-08-26 | 1954-11-23 | Acme Visible Records Inc | Perforating apparatus |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3147658A (en) * | 1961-11-29 | 1964-09-08 | Harry S Boyd | Apparatus for perforating sheets |
US3132540A (en) * | 1961-11-29 | 1964-05-12 | Harry S Boyd | Method for making perforating strips |
US3431847A (en) * | 1967-03-31 | 1969-03-11 | George B Smith | Perforating printing improvement |
US3593987A (en) * | 1968-03-11 | 1971-07-20 | Bernard J Garber | Method of making a book |
JPS5063882U (en) * | 1973-10-09 | 1975-06-10 | ||
JPS5320045Y2 (en) * | 1973-10-09 | 1978-05-26 | ||
EP0085502A1 (en) * | 1982-01-29 | 1983-08-10 | Dobson Park Industries Plc | Toy printing apparatus |
WO1983004004A1 (en) * | 1982-05-17 | 1983-11-24 | Rolf Schellenberg | Method and device for perforating, punching or grooving paper and cardboard in a rotary press |
US4596546A (en) * | 1982-05-17 | 1986-06-24 | Rolf Schellenberg | Process and apparatus for perforating, stamping or creasing of paper and cardboard in rotary printing presses |
US4778165A (en) * | 1986-04-30 | 1988-10-18 | Bielomatik Leuze Gmbh & Co. | Apparatus for folding and cutting web stacks |
US4972747A (en) * | 1986-05-27 | 1990-11-27 | Harry Boyd | Perforating strip for printing presses |
US4962686A (en) * | 1986-05-27 | 1990-10-16 | Harry Boyd | Perforating strip for printing presses |
US4936214A (en) * | 1987-01-09 | 1990-06-26 | Innovative Graphic Industries | Apparatus for adapting offset duplicator machines to accomodate numbering, printing, scoring, perforating and like device |
US5117721A (en) * | 1990-10-29 | 1992-06-02 | Montrose Franklin C | Method of forming perforating rule and blades |
US5123347A (en) * | 1991-05-14 | 1992-06-23 | Brown William R | Scoring or perforating bar for offset presses |
US5228388A (en) * | 1991-05-14 | 1993-07-20 | Brown William R | Scoring or perforating bar for offset presses |
US5868057A (en) * | 1996-07-23 | 1999-02-09 | Western Printing Machinery Company | Perforation rule for rotary cutting system |
EP0832734A2 (en) | 1996-09-30 | 1998-04-01 | Winkler & Dünnebier Maschinenfabrik und Eisengiesserei GmbH | Method and apparatus for producing transverse precreases, in particular on envelope blanks |
US20110036058A1 (en) * | 2008-02-07 | 2011-02-17 | Howdeshell Ii Dwight E | Cutting blades and assemblies |
US8832946B2 (en) * | 2008-02-07 | 2014-09-16 | Nestec S A | Cutting blades and assemblies |
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