US2799338A - Paper cutter back gauge mounting - Google Patents

Paper cutter back gauge mounting Download PDF

Info

Publication number
US2799338A
US2799338A US362010A US36201053A US2799338A US 2799338 A US2799338 A US 2799338A US 362010 A US362010 A US 362010A US 36201053 A US36201053 A US 36201053A US 2799338 A US2799338 A US 2799338A
Authority
US
United States
Prior art keywords
back gauge
guide
paper cutter
shaft
wedge
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
Application number
US362010A
Inventor
Barney Freeman
Michael E Papanoli
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Challenge Machinery Co
Original Assignee
Challenge Machinery Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Challenge Machinery Co filed Critical Challenge Machinery Co
Priority to US362010A priority Critical patent/US2799338A/en
Application granted granted Critical
Publication of US2799338A publication Critical patent/US2799338A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/015—Means for holding or positioning work for sheet material or piles of sheets
    • B26D7/016—Back gauges

Definitions

  • a paper cutter such as utilizes a back gauge of this nature comprises a horizontal table on which stacks of paper are placed and a knife, which is forcibly moved downward to cut the paper to predetermined size.
  • the back gauge is located on the table back of the knife, and the stack of paper is laid against it and the back gauge must be adjustable on the table relative to the knife so that the paper can be cut into different dimen-
  • the back gauge is provided with a manually operable clamp which is releasable to enable the back gauge to be adjusted on the table for different paper dimensions, and when clamped it must be brought and rigidly held in alignment with the knife for paper cutting accuracy.
  • the back gauge must be adjustable on its mounting so that it will be in exact alignment with the knife, and its construction should be relatively simple and easily operable.
  • Fig. l is a plan view of a paper cutter table with a part broken away and with the back gauge thereon,
  • Fig. 2 is a side elevation of the table and back gauge with parts broken away
  • Fig. 3 is an enlarged longitudinal sectional elevation of the back gauge and its mounting on the line 3-3 of Fig.5,
  • Fig. 4 is a transverse sectional elevation of the central part of the back gauge and its mounting on the line 4-4 of Fig. 3,
  • Fig. 5 is an enlarged plan view of the central part of the back gauge
  • Fig. 6 is a fragmentary section of a part of the back gauge and its mounting on the line 66 of Fig. 3,
  • Fig. 7 is a fragmentary detail of the mounting of the operating shaft
  • Fig. 8 is another fragmentary mechanism for the operating shaft.
  • the paper cutter has a horizontal work table 1 supported by suitable frame work not shown.
  • the back gauge 2 is movably supported on the top of the table and is connected to the back gauge mounting, a part of which slides in the slots 3 which extends through the table top.
  • the back gauge mounting comprises a guide 4 which is rigidly attached to the under side of the back gauge 2 and extends through and traverses the slot 3 which has downwardly and outwardly tapering sides 5.
  • the guide 4 has spaced downwardly, extending hanger members 7 in each of which is rotatably mounted a bushing 8, each having a flange 9 at its inner end.
  • the bushings 8 have square holes extending axially through them, and a square operating shaft extends through those holes under the slot 3 and is rotatably mounted at each of its ends, which are provided with bushings 11 journaled in bearing members 12 on the under side of the table 1.
  • eccentric member 13 On the square shaft 10, between the hanger members 7 and the flanges 9 of the bushings 8, is mounted an eccentric member 13, said eccentric member and bushings 8 being freely slidable longitudinally on the shaft 10.
  • the eccentric member 13 bears against the under side of the wedge 6, which has a hook 14 extending downwardly to embrace the eccentric member 13 and engage its lower side.
  • the back gauge may be moved on the table by any suitable means, and the shaft 10 may be manually rotated by suitable means.
  • the means for rotating the shaft 10 which is shown, consists of a crank 15 attached to the front end of the shaft and a hand lever 16 mounted on the under side of the table 1 near its front end and connected to the crank 15 by a link 17.
  • the parallelism of the back gauge with the knife of the paper cutter may be adjusted by means of its connections with the guide 4, which are as follows:
  • a screw 20 passes through the front part of the back gauge and is screwed into the guide 4.
  • a bushing 21 surrounds the screw 20 and acts as a pivot.
  • a second screw 22 passes through the rear part of the back gauge and is screwed into the guide 4.
  • the hole 23 in the back gauge, through which the screw 22 passes, is considerably larger than the screw so that when both screws 20 and 22 are loosened the back gauge may be pivoted about the bushing 21 sufliciently to attain the desired adjustment, after which both screws are tightened to lock the back gauge to the guide.
  • a threaded shaft 24 extends between flanges 25 on the back gauge and a prong 26 extends upwardly from the guide through a hole 27 and straddles the shaft 24.
  • Nuts 28 on the shaft 24 at the opposite sides of the prong 26 may be turned in either direction to cause pivoting movement of the back gauge relative to the guide 4 and about the bushing 21.
  • the back gauge after having once been properly adjusted on the guide 4, when unclamped, may be freely moved on the table to any desired position relative to the knife, and then by rotation of the shaft 10 and eccentric 13, the wedge 6 is thrust upwardly into the tapered slot 3 which draws all parts into proper position and clamps them firmly in place.
  • the wedge 6, where it straddles the guide 4 has a very close fit so that when the wedge is forced upwardly in the slot 3 the guide and back gauge attached to it will be accurately located.
  • a structure of the class described comprising, a table having an elongated slot therein, said slot having downwardly and outwardly tapering sides, a back gauge movably mounted on the upper surface of said table over said slot, a guide traversable of said slot and adjustably connected to the under side of the back gauge, a manually rotatable shaft extending under said table and parallel to said slot, said shaft having a rotatable and slidable bearing on said guide, a wedge member adjacent said guide and traversable of said slot, an eccentric member slidably 4 and non-rotatably mounted on said shaft and bearing against said wedge and acting, when rotated with said shaft, to force said wedge into said slot and to pull downwardly on said guide and back gauge, said wedge straddling a portion of said guide and having a close sliding fit therewith.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Description

July 16,1957 F. BARNEY ETAL. 2,799, 8
PAPER CUTTER BACK GAUGE MOUNTING Filed June 16, 1953 s sums-sheet 1 1m; enters Freeman Barneq Mic'hae\ EPapanoli y 1957 F. BARNEY ETAL I 2,799,338 I PAPER CUTTER BACK GAUGE MOUNTING Filed June 16, 1953 s Sheets-Sheet 2 l T ii? fig; 2.4 26 24 7 I 'Tnucnfors Michau E flpommi I sw m uly 6, 195? F. BARNEY ETAL 2,799,338 PAPER CUTTER BACK GAUGE MOUNTING 3 Sheets-Sheet 3 Filed June 16 1953 2,799,338 Patented July 16, 1957 PAPER CUTTER BACK GAUGE MOUNTING Freeman Barney and Michael E. Papanoli, Spring Lake,
Mich., assignors to The Challenge Machinery Company, Grand Haven, Mich., a corporation of Michigan ApplicationJune 16, 1953, Serial No. 362,010
7 1 Claim. (Cl. 16459) This invention relates to the mounting of a back gauge used on a paper cutter. A paper cutter such as utilizes a back gauge of this nature comprises a horizontal table on which stacks of paper are placed and a knife, which is forcibly moved downward to cut the paper to predetermined size. The back gauge is located on the table back of the knife, and the stack of paper is laid against it and the back gauge must be adjustable on the table relative to the knife so that the paper can be cut into different dimen- When the back gauge is set for any desired paper cutting dimension it must be clamped rigidly in place and must closely engage the table so that sheets of paper cannot slip under it. The back gauge is provided with a manually operable clamp which is releasable to enable the back gauge to be adjusted on the table for different paper dimensions, and when clamped it must be brought and rigidly held in alignment with the knife for paper cutting accuracy.
The back gauge must be adjustable on its mounting so that it will be in exact alignment with the knife, and its construction should be relatively simple and easily operable.
The invention is hereafter more fully described, reference being had to the accompanying drawings, in which:
Fig. l is a plan view of a paper cutter table with a part broken away and with the back gauge thereon,
Fig. 2 is a side elevation of the table and back gauge with parts broken away,
Fig. 3 is an enlarged longitudinal sectional elevation of the back gauge and its mounting on the line 3-3 of Fig.5,
Fig. 4 is a transverse sectional elevation of the central part of the back gauge and its mounting on the line 4-4 of Fig. 3,
Fig. 5 is an enlarged plan view of the central part of the back gauge,
Fig. 6 is a fragmentary section of a part of the back gauge and its mounting on the line 66 of Fig. 3,
Fig. 7 is a fragmentary detail of the mounting of the operating shaft, and
Fig. 8 is another fragmentary mechanism for the operating shaft.
Like reference numbers refer to like parts in all of the figures.
The paper cutter has a horizontal work table 1 supported by suitable frame work not shown. The back gauge 2 is movably supported on the top of the table and is connected to the back gauge mounting, a part of which slides in the slots 3 which extends through the table top.
The back gauge mounting comprises a guide 4 which is rigidly attached to the under side of the back gauge 2 and extends through and traverses the slot 3 which has downwardly and outwardly tapering sides 5. A wedge 6, which has tapered sides corresponding to the sides of detail of operating the slot 3, straddles the central portion of the guide 4, and has a limited vertical movement.
The guide 4 has spaced downwardly, extending hanger members 7 in each of which is rotatably mounted a bushing 8, each having a flange 9 at its inner end. The bushings 8 have square holes extending axially through them, and a square operating shaft extends through those holes under the slot 3 and is rotatably mounted at each of its ends, which are provided with bushings 11 journaled in bearing members 12 on the under side of the table 1.
On the square shaft 10, between the hanger members 7 and the flanges 9 of the bushings 8, is mounted an eccentric member 13, said eccentric member and bushings 8 being freely slidable longitudinally on the shaft 10. The eccentric member 13 bears against the under side of the wedge 6, which has a hook 14 extending downwardly to embrace the eccentric member 13 and engage its lower side.
Rotation of the square shaft 10 and like rotation of the eccentric member 13 in one direction pushes upwardly on the wedge 6 and pulls downwardly on the guide 4 through its hanger members 7. The guide being connected to the under side of the back gauge, this action pulls the back gauge snugly against the top of the table 1 and forces the wedge upwardly into the tapered slot 3 bringing the back gauge into its proper position and clamping-it firmly in place. Reverse rotation of the shaft 10 and eccentric member 13 releases the wedge and through the hook 14 moves it downwardly, which frees the back gauge for longitudinal adjustment on the table.
The back gauge may be moved on the table by any suitable means, and the shaft 10 may be manually rotated by suitable means. The means for rotating the shaft 10 which is shown, consists of a crank 15 attached to the front end of the shaft and a hand lever 16 mounted on the under side of the table 1 near its front end and connected to the crank 15 by a link 17.
The parallelism of the back gauge with the knife of the paper cutter may be adjusted by means of its connections with the guide 4, which are as follows: A screw 20 passes through the front part of the back gauge and is screwed into the guide 4. A bushing 21 surrounds the screw 20 and acts as a pivot. A second screw 22 passes through the rear part of the back gauge and is screwed into the guide 4. The hole 23 in the back gauge, through which the screw 22 passes, is considerably larger than the screw so that when both screws 20 and 22 are loosened the back gauge may be pivoted about the bushing 21 sufliciently to attain the desired adjustment, after which both screws are tightened to lock the back gauge to the guide.
To aid in adjusting the back gauge on the guide, a threaded shaft 24 extends between flanges 25 on the back gauge and a prong 26 extends upwardly from the guide through a hole 27 and straddles the shaft 24. Nuts 28 on the shaft 24 at the opposite sides of the prong 26 may be turned in either direction to cause pivoting movement of the back gauge relative to the guide 4 and about the bushing 21.
By this mechanism the back gauge, after having once been properly adjusted on the guide 4, when unclamped, may be freely moved on the table to any desired position relative to the knife, and then by rotation of the shaft 10 and eccentric 13, the wedge 6 is thrust upwardly into the tapered slot 3 which draws all parts into proper position and clamps them firmly in place. In this respect it is to be noted that the wedge 6, where it straddles the guide 4, has a very close fit so that when the wedge is forced upwardly in the slot 3 the guide and back gauge attached to it will be accurately located.
This construction is extremely simple to manufacture,
3 assemble and manipulate. Few parts are required to attain the desired result. The parts which must be accurately machined, such as the sides of the tapered slot 3, the tapered sides of the wedge 6, the groove in the wedge which receives the guide 4, and that portion of theguide which fits into the groove of the wedge, are all easily available for machine operation.
The invention is defined by the appended claim and is to be considered comprehensive of all forms coming within its scope.
We claim:
A structure of the class described, comprising, a table having an elongated slot therein, said slot having downwardly and outwardly tapering sides, a back gauge movably mounted on the upper surface of said table over said slot, a guide traversable of said slot and adjustably connected to the under side of the back gauge, a manually rotatable shaft extending under said table and parallel to said slot, said shaft having a rotatable and slidable bearing on said guide, a wedge member adjacent said guide and traversable of said slot, an eccentric member slidably 4 and non-rotatably mounted on said shaft and bearing against said wedge and acting, when rotated with said shaft, to force said wedge into said slot and to pull downwardly on said guide and back gauge, said wedge straddling a portion of said guide and having a close sliding fit therewith.
References Cited in the file of this patent UNITED STATES PATENTS 728,424 Stefr'e et al. May 19, 1903 1,018,111 Holdt Feb. 20, 1912 1,191,750 Wadhams July 18, 1916 1,752,125 Thorne Mar. 25, 1930 1,808,388 Tyler et al June 2, 1931 1,895,440 Barney Jan. 31, 1933 1,923,293 Berry Aug. 22, 1933 2,176,512 Schwarcz Oct. 17, 1939 FOREIGN PATENTS 627,741 Germany Mar. 23, 1936
US362010A 1953-06-16 1953-06-16 Paper cutter back gauge mounting Expired - Lifetime US2799338A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US362010A US2799338A (en) 1953-06-16 1953-06-16 Paper cutter back gauge mounting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US362010A US2799338A (en) 1953-06-16 1953-06-16 Paper cutter back gauge mounting

Publications (1)

Publication Number Publication Date
US2799338A true US2799338A (en) 1957-07-16

Family

ID=23424334

Family Applications (1)

Application Number Title Priority Date Filing Date
US362010A Expired - Lifetime US2799338A (en) 1953-06-16 1953-06-16 Paper cutter back gauge mounting

Country Status (1)

Country Link
US (1) US2799338A (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US728424A (en) * 1903-02-17 1903-05-19 George W Steffee Machine for trimming window-shades.
US1018111A (en) * 1911-06-28 1912-02-20 Dexter Folder Co Back gage for paper-cutting machines.
US1191750A (en) * 1913-07-28 1916-07-18 Niel Gray Jr Paper-cutting machine.
US1752125A (en) * 1928-07-02 1930-03-25 Clarence O Thorne Gauge for paper-cutting machines
US1808388A (en) * 1927-10-13 1931-06-02 Chandler And Price Company Gauge lock
US1895440A (en) * 1928-01-30 1933-01-31 Challenge Machinery Co Paper cutter
US1923293A (en) * 1927-09-23 1933-08-22 Berry Machine Company Gauge for cutting machines
DE627741C (en) * 1934-10-07 1936-03-23 Chn Mansfeld Fa Machine for cutting stacks of paper
US2176512A (en) * 1938-12-20 1939-10-17 Frank S Schwarcz Driving means for a machine having a movable gauge

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US728424A (en) * 1903-02-17 1903-05-19 George W Steffee Machine for trimming window-shades.
US1018111A (en) * 1911-06-28 1912-02-20 Dexter Folder Co Back gage for paper-cutting machines.
US1191750A (en) * 1913-07-28 1916-07-18 Niel Gray Jr Paper-cutting machine.
US1923293A (en) * 1927-09-23 1933-08-22 Berry Machine Company Gauge for cutting machines
US1808388A (en) * 1927-10-13 1931-06-02 Chandler And Price Company Gauge lock
US1895440A (en) * 1928-01-30 1933-01-31 Challenge Machinery Co Paper cutter
US1752125A (en) * 1928-07-02 1930-03-25 Clarence O Thorne Gauge for paper-cutting machines
DE627741C (en) * 1934-10-07 1936-03-23 Chn Mansfeld Fa Machine for cutting stacks of paper
US2176512A (en) * 1938-12-20 1939-10-17 Frank S Schwarcz Driving means for a machine having a movable gauge

Similar Documents

Publication Publication Date Title
US1838011A (en) Mandrel de-corer
US3845676A (en) Device for cutting ovals in mats or glass sheets
US2435765A (en) Saw table
US2622637A (en) Gauge for sawing machines
US2799338A (en) Paper cutter back gauge mounting
US2535182A (en) Uniform depth of cut woodgrooving machines
US3032209A (en) Tilting back gauge and clamp for paper cutters
US3583270A (en) Slitters for travelling webs
US2951517A (en) Support and holddown means for a power-operated dado cutter
US1742224A (en) Jig device
US2188502A (en) Method of and apparatus for making patterns
US221804A (en) Improvement in gages for circular sawing machines
US3870090A (en) Arrangement in planing machines with feeding mechanism comprising at least two rollers
US40356A (en) Improvement in sawing-machines
US378513A (en) Guide for circular saws
US3060982A (en) Work guide controls for edge planers
US373786A (en) Band-saw guide
US1346185A (en) Gage for sheet-metal machines
US273000A (en) Feed-table gage for curved work
US140157A (en) Improvement in adjustable saw-guides
US1043285A (en) Tenon-machine gage.
US769008A (en) Machine for shaping saw-teeth.
US694337A (en) Saw-guide.
US665007A (en) Rotary-cutter machine.
US1003557A (en) Metal-cutting mechanism.