US3559983A - Large sheet folder including sheet securing means - Google Patents
Large sheet folder including sheet securing means Download PDFInfo
- Publication number
- US3559983A US3559983A US637953A US3559983DA US3559983A US 3559983 A US3559983 A US 3559983A US 637953 A US637953 A US 637953A US 3559983D A US3559983D A US 3559983DA US 3559983 A US3559983 A US 3559983A
- Authority
- US
- United States
- Prior art keywords
- sheet
- rolls
- nip line
- cross
- roll
- 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
Links
- 230000000694 effects Effects 0.000 claims abstract description 13
- 238000007689 inspection Methods 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000004744 fabric Substances 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 description 24
- 239000000463 material Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F89/00—Apparatus for folding textile articles with or without stapling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H45/00—Folding thin material
- B65H45/02—Folding limp material without application of pressure to define or form crease lines
- B65H45/04—Folding sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H45/00—Folding thin material
- B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2406/00—Means using fluid
- B65H2406/10—Means using fluid made only for exhausting gaseous medium
- B65H2406/12—Means using fluid made only for exhausting gaseous medium producing gas blast
- B65H2406/122—Nozzles
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S493/00—Manufacturing container or tube from paper; or other manufacturing from a sheet or web
- Y10S493/937—Textile
Definitions
- the present invention relates primarily to a mechanism for inspecting and subsequently folding newly manufactured sheets and heavy sheeting such as shower curtains.
- the present invention provides a means and method of folding sheets with three longitudinal folds and three or four crossfolds into a compact package having precisely aligned edges with the open edges uppermost for inspection purposes.
- a further object of the present invention is to provide an improved mechanism for folding sheets, shower curtains and the like immediately after inspecting them with the folded sheets, shower curtains or the like being delivered conveniently for packaging.
- a large sheet folder having means for effecting a plurality of folds comprising a table .having a surface adapted to support a spread out sheet with the surface having an elongated aperture formed in it. Means are provided for securing the sheet in a spread out position on the table surface for inspection and means are provided for folding the sheet with these means being positioned below the aperture.
- These folding means comprise a series of rolls adapted to effect a plurality of Iongitudinal folds followed by a plurality of crossfolds with the sheet being delivered preferably with its raw edges facing upwardly.
- FIG. 1 is an isometric view of a folding and inspecting machine embodying the present invention
- FIG. 2 is a cross-sectional view taken substantially along the line 2-2 of FIG. 1;
- FIG. 3 is an elevation taken substantially along the line 3-3 of FIG. 1;
- FIG. 4 is a cross-sectional detail of the top folding mechanism taken substantially along the line 4-4 of FIG. 1;
- FIG. 5 is a cross-sectional detail of the bottom folding mechanism taken substantially along the line 5-5 of FIG. 1.
- FIG. 1 there is illustrated a machine for inspecting and folding sheets.
- This machine includes a table having a table surface I of sufficient length and diameter to accommodate the largest sheets which are to be folded.
- the conventional sheet folded on this machine is, for example, 96inches in width and 136 inches in length. Thus the surface should substantially exceed these dimensions.
- the table is preferably formed of any suitable material such as metal or plastic.
- the table is supported preferably in a horizontal position by legs and frames 2 preferably formed of vertically and longitudinally extending interconnected metal beams with the beams arranged and secured in a conventional fashion and providing suitable support for the table surface and the operating mechanism hereinafter described.
- Extending lengthwise and preferably centrally of the table is an opening or aperture 4.
- This aperture should be of sufficient length to accommodate the full length of the sheet which is ordinarily handled by the table.
- the aperture may, for example, be approximately 124 inches in length by approximately 4 inches in width.
- Such means may comprise a longitudinally extending air pipe 6 illustrated in FIG. 2.
- This air pipe 6 may be suitably supported on a frame 5 in turn secured at its ends to the ends of the table.
- the air pipe 6 is provided with a series of holes (not shown) directed downwardly toward the aperture 4 so that air passing from the air pipe 6 will cause a downward force directed toward the aperture 4.
- Air is admitted to the air pipe 6 through the conventional tubes 7 supplied from a suitable source (not shown).
- This air is controlled by air valves 8 connected to the tubes 7 and air pipe 6.
- the valves 8 may be controlled by conventional means for actuation and consequent admission of air to the pipe 6 at suitable intervals determined by the operator.
- Means are provided on the table 1 for securing a sheet in a spread out fashion. These means may comprise any suitable mechanism. Preferably, however, such means should comprise the mechanism illustrated in FIGS. 1, 2 and 3. In this arrangement there is provided four sets of holes 10 with each set of holes extending through the table surface at four spaced lothe pump or vacuum source 12.
- the suction means 10. 12 and 13 hold the sheet in position so that the operator may move from corner to corner of the sheet to adjust it in a precise fashion to the selected markings 11.
- a sheet as thus spread by an operator is not only precisely located for its initial movement and folding. but is also easily inspected for all types of flaws by the inspector as the sheet is being spread.
- top folding mechanisms are generally illustrated at and are best shown in FIGS. 1. 2 and 4.
- This top folding mechanism includes the air pipe 6 and its control mechanism (not shown).
- top folding rolls 21 and 22 suitably journaled in the frame 2 and positioned directly beneath aperture 4.
- the rolls 21 and 22 are positioned to form a nip 23 symmetrically located with respect to the aperture 4.
- These rolls 21 and 22 as well as the others hereinafter described may be of any conventional design and preferably include a covering of rubber or other synthetic material illustrated at 24.
- a plurality of stripper bars 25 are supported in relation to roll 21 while a plurality of stripper bars 26 are supported in relation to roll 22.
- These stripper bars 25 and 26 each comprise an elongated metal member suitably bent to guide and support sheets passing adjacent to the bars 25 and 26.
- the bars 25 and 26 are preferably aligned with one another longitudinally throughout the length of the rolls 21 and 22. Preferably about eight of such stripper bars will be used in association with each of the rolls 21 and 22 spaced uniformly along the lengths of these rolls.
- Stripper bars 25 are supported at their upper end by the bracket 28 in turn secured to the frame.
- stripper bars 25 extend from the bracket generally downwardly with the upper end of the stripper bars shaped in an arcuate sector 29 that is concentric with the center of the axis of roll 21.
- This arcuate sector 29 is recessed within annular grooves formed in the cover 24 of the roll 21 so that the outer surfaces of the stripper bars 25 in this arcuate sector 29 are positioned below the outer surface of the roll 21.
- the lower end of the arcuate sector 29 extends into and is continuous with the generally downwardly extending segment 30 which in turn is suitably secured to a cross brace 31.
- Stripper bars 26 are secured at their upper end to cross brace 33 which in turn is secured to the frame.
- the upper ends of the stripper bars 26 extend around roll 22 with an arcuate sector 34 in each stripper bar 26 corresponding to and facing the arcuate sectors 29 of the bars 25.
- the arcuate sectors 34 are similarly recessed within annular grooves in the covering 24 of roll 22.
- Continuous with the arcuate sectors 34 are segments 37 that extend under roll 22 in a direction away from the stripper bars 25.
- a portion of segment 37 of each of the bars 26 is coaxial with the axis of roll 24.
- the lower end of each stripper bar 26 is suitably secured to a cross brace 38 in turn secured to the frame.
- a third set of stripper bars 40 is supported below stripper bars 26 by cross brace 41.
- stripper bars 40 are preferably and substantially vertically aligned with the space between the arcuate sectors 29 and 34 so that sheets passing between the rolls 21 and 22 will be guided downwardly by the stripper bars 40.
- the upper ends of the stripper bars 40 are arcuately curved over roll 43.
- Roll 43 and its parallel roll 44 are similar in construction to rolls 2] and 22 and are mounted at their ends by suitable journals in turn secured to the frame.
- Roll 43 is positioned adjacent to roll 22 and rotates in a direction opposite to roll 22.
- the line of tangency or nip 45 between these rolls forms a means for effecting a second longitudinal fold in a sheet passing through the machine.
- An air pipe 46 suitably supported at its ends on the frame, for example.
- bracket means 47 has a series of holes directed to the nip 45 of the rolls 22 and 43 so that when properly actuated by means not shown it will force a sheet moving downwardly between rolls 21 and 22 towards the line of tangency or nip 45 along a line intermediate the edges of the sheet. This sheet will thus move over the upper end of the stripper bars 40 and between rolls 22 and 43 thereby effecting a second fold.
- Roll 44 is mounted on an axis below roll 43 and functions with roll 43 to provide a means for effecting a third longitudinal fold in a sheet passing through the machine. These rolls form a line of tangency or nip line 48.
- the air pipe 49 suitably secured to the frame by a bracket means.
- a plurality of guide belts 55 extend about roll 43 with these endless belts 55 engaged by an idler roll 56 positioned below the roll 53 and 44. The idler roll 56 in turn is supported on a shaft journaled in the frame 2.
- Air pipe 6 may be actuated by a suitable button or mechanism controlled by the operator.
- Air pipe 46 is controlled by a suitable air valve not shown. This air valve in turn is actuated by conventional means by microswitch 60 which is suitably connected to the actuating valve of the pipe 46.
- the microswitch 60 is positioned to be actuated by the leading edge of a sheet as it moves downwardly between rolls 21 and 22.
- the microswitch 60 may be adjustably positioned for vertical movement so that the time of actuation of the switch in respect to the movement of the sheet between rolls 21 and 22 can be adjusted.
- Air pipe 49 is controlled in a similar manner as air pipe 46 with air pipe 49 actuated by microswitch 61.
- Microswitch 61 is suitably supported on the frame and is adapted to be adjusted for engagement by the leading edge of a sheet as it moves downwardly over the stripper bars 51.
- a plurality of endless conveyor belts 59 are supported by parallel rolls 63 and 63a suitably journaled on the frame (FIG. 2). The upper surfaces of these conveyor belts 59 are moved over a lower supporting table 65 positioned below the upper table 1.
- the rolls 21 and 22, 43, 44 and 63 may be commonly driven by a single power source.
- This source may comprise motor 66 (FIG. 2) which drives a sprocket in 'turn connected to sprocket chain 67.
- Sprocket chain 67 suitably engaged sprockets mounted respectively on the shafts of the rollers at one side of the frame as is illustrated in FIG. 2.
- the sheets which are folded longitudinally three times by the upper folding mechanism are then conveyed by belts 59 to the lower cross folding mechanism or bottom folding mechanism 70, best illustrated in FIG. 5.
- a pair of parallel rolls 71 and 72 are positioned below the upper surface of belts 59 with the line of tangency or nip of the rolls 71 and 72 intermediate adjacent belts 59.
- An aperture 74 in the lower table 65 extends longitudinally of and is aligned with the line of tangency 73 so that sheets may be forcedv downwardly or projected through the aperture 74 and between the nip of rolls 71 and 72.
- an air pipe 75 Positioned above the line of tangency 73 and extending longitudinally of it is an air pipe 75 with openings in the air pipe which extend downwardly toward the line of tangency 73.
- This air pipe 75 is supported on the frame by suitable means and like the other pipes is connected to a source of air pressure through a suitable valve (not shown), with the valve in turn actuated by a microswitch 76 (FIG. 2).
- the microswitch 76 is supported on the frame in .the
- this switch 76 may be adjustably located for sheets of varying dimensions.
- a sheet which has been folded three times in a French fold by the upper folding mechanism is effectively cross folded with a first crossfold as it moves between the rolls 71 and 72.
- a second fold is effected between rolls 71 and 78.
- Roll 78 is journaled parallel to roll 71 and forms a nip line 79 with roll 71.
- An air pipe 80 suitably supported on the frame has apertures directed to the nip line 79.
- This air pipe 80 is suitably supported on the frame and is supplied with air through an air valve (not shown) in a manner similar to air pipe 75.
- Microswitch 81 is supported on the frame and is suitably connected to the valve controlling the flow of air to pipe 80.
- Microswitch 81 is adapted to be engaged by the leading edge of a sheet as it passes between rolls 71 and 72. This microswitch 81 may also be adjusted for engagement at different positions by the leading edge of the sheet. Actuation of the air pipe 80 by microswitch 81 forces the sheet along an intermediate line towards the nip 79 of rolls 71 and 78 thereby effecting a second crossfold in the sheet.
- the plurality of belts 81a is mounted on and rotate with rolls 71, 82 and 83.
- Roll 83 is an idler roll suitably journaled like roll 82 to the frame.
- the belts 81a also extend about the outside of the roll 78.
- Roll 81 is either a drive or driven roll which in conjunction with roll 84 supports a plurality of belts 85 having an upper horizontal surface adapted to receive the twice cross folded sheets from belts 81a.
- the belts 85 are spaced apart so that belts 810 may be interleaved with them.
- a table extension 89 is positioned parallel to the upper surface of belt 85 on a plane slightly below the upper surface of belt 85 so that folded sheets moved by the belts 85 will carry onto the table 89.
- An air pipe 90 extends longitudinally of the roll 84 and is provided with apertures or holes directed towards the nip line 91 fonned by the rolls 84 and 93.
- Roll 93 is suitably secured to the frame parallel to and slightly below roll 84.
- Air is supplied to air pipe 90 in a manner similar to the means by which air is supplied to the air pipe 80.
- the microswitch 94 is adjustably secured to the table 89 and is adapted to be engaged by the leading edge of a sheet as it passes over the table 89. This microswitch 94 in turn controls the air valve which admits air to the pipe 90.
- a sixth fold or third crossfold is effected in the sheets as they are moved over rolls 84 and 93 with the sheets being forced downwardly between these rolls.
- a delivery system 94 is positioned below rolls 84 and 93.
- This delivery system comprises a plurality of conveyor belts 95 extending parallel to belts 85.
- the belts 95 are supported on rolls 96 and 97 with these rolls in turn suitably journaled on the frame.
- the belts 94 have an upper surface adapted to be moved by the rolls 96 and 97 in a direction opposite to the movement of the upper surface of the belts 85.
- the rolls illustrated in FIG. 5 may be driven from a suitably power source such as motor 99 (FIG. 2), with the motor in turn connected to a suitable sprocket and chain.
- the motor 99 is supported by suitable means on the frame of the machine. This motor drives a sprocket chain 100 which in turn engages sprockets mounted on rolls 71, 72, 84, 93 and 96 and a sprocket on the motor 99, as illustrated in FIG. 5.
- Other suitable drive mechanisms may be used.
- the foregoing embodiment is designed primarily for use with manufactured sheets which are initially inspected before folding.
- the principles described may also be used with other types of material as, for example, plastic sheets or shower curtains.
- punch bar actuators 75Y, 80Y and 90Y for air pipes to effect folds between the nips between the parallel rolls.
- a separate drive mechanism In an arrangement for use in shower curtains, a separate drive mechanism is provided.
- This separate drive mechanism provides a plurality of conveyor belts illustrated in dotted outline in FIG. 1 at 103. These conveyor belts 103 extend longitu- -dinally over the open table surface 1 with the belts supported at the ends of the table by suitable rolls 104 and 105.
- the frame would be modified so that the support for the airblast pipe 6 will not interfere with longitudinal movement of sheets over the aperture 4.
- Such an arrangement may provide lateral frames or supports instead of the longitudinal ones illustrated in FIG. 1.
- the sheet is first folded into a French fold by effecting two longitudinal folds each a third of the distance from the side edges of the sheet.
- the three crossfolds are then effected in such a manner that the sheet will present itself at the delivery end of belts with the unfolded edges of the sheet presented upwardly so that they may be more readily inspected.
- a table having a flat surface adapted to support a spreadout sheet, said surface having an elongated aperture formed centrally therein;
- a sheet folder as set forth in claim 1 wherein said means for securing said sheet in a spreadout position comprises means for engaging sheets spread out on said table in the areas of the comers of such sheets.
- a sheet folder as set forth in claim 1 wherein said means for securing said sheet in a spreadout position comprises means forming small apertures on said table and means for ap: plying suction through said small apertures whereby a sheet positioned over said apertures will be restrained against movement by said suction.
- a sheet folder as set forth in claim 1 wherein said means for folding said sheet comprises:
- means for effecting a plurality of longitudinal folds including four parallel rolls extending longitudinally of said aperture with two of said rolls forming a first nip line below and aligned with said aperture to receive sheets passing through said aperture and to effect a first longitudinal fold.
- the other two of said rolls positioned below and lateral of said first nip line with the plane passing through the axis of said other two rolls nonparallel with the plane passing through the axis of said first two rolls, one of said first two rolls and one of said second two rolls positioned to form a second nip line therebetween, said other two rolls positioned to form a third nip line therebetween;
- said guide means comprising an endless belt wrapped about one of said second two rolls so that said belt first passes about a selected peripheral portion of said third roll and then about a selected peripheral portion of said fourth roll, said belt having a portion thereof disposed between and along a tangent to one of said second two rolls, said portion of said belt passing through said third nip line and between said second two rolls, said belt and said fourth roll being adapted to receive and grip said sheet therebetween said belt leaving said fourth roll tangentially and at least laterally in a direction toward said cross folding means to advance said longitudinally folded sheet to said cross folding means.
- a sheet folder as set forth in claim 1 including;
- means for effecting a plurality of longitudinal folds including four parallel rolls extending longitudinally of said aperture with two of said rolls forming a first nip line below and aligned with said aperture to receive sheets passing through said aperture to effect a first longitudinal fold, the other two of said rolls positioned below and lateral of said first nip line with the plane passing through the axis of said other two rolls nonparallel with the plane passing through the axis of said first two rolls, one of said first two rolls and one of said second two rolls, one of said first two rolls and one of said second two rolls positioned to form a second nip line therebetween, said other two rolls positioned to form a third nip line therebetween;
- conveyor means comprising a plurality of endless belts extending perpendicular to said four rolls and positioned therebelow for receiving said longitudinally folded sheet;
- a sheet folder as set forth in claim 5 having a plurality of endless conveyor belts interengaging said second and third cross folding rolls for guiding said sheet downwardly from said third cross folding roll, a plurality of laterally extending endless belts positioned below said third cross folding roll and adapted to receive a sheet from said third cross folding roll and convey it to said fourth and fifth cross folding roll.
- a sheet folder as set forth in claim 6 having conveyor means for receiving a cross folded sheet from said third cross nip line with said conveyor means extending parallel to said conveyor belts interengaging said second and third cross folding rolls.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
Abstract
Description
Claims (7)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US63795367A | 1967-05-12 | 1967-05-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3559983A true US3559983A (en) | 1971-02-02 |
Family
ID=24558047
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US637953A Expired - Lifetime US3559983A (en) | 1967-05-12 | 1967-05-12 | Large sheet folder including sheet securing means |
Country Status (1)
Country | Link |
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US (1) | US3559983A (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3669443A (en) * | 1970-04-01 | 1972-06-13 | Ivanhoe Research Corp | Method and system for automatically forming parts for garments, and the like |
US3685818A (en) * | 1970-04-06 | 1972-08-22 | Kimberly Clark Co | Machine for making diapers |
US3711086A (en) * | 1970-09-01 | 1973-01-16 | H Weist | Method and apparatus for folding lengths of material |
US3751029A (en) * | 1971-07-30 | 1973-08-07 | Angelo J D | Multi-level apparatus for folding large flexible webs |
US3773315A (en) * | 1971-06-04 | 1973-11-20 | Exxon Research Engineering Co | Sheet and bag folder |
US3785636A (en) * | 1971-09-20 | 1974-01-15 | Ethyl Corp | Bag folding apparatus |
US3905593A (en) * | 1973-05-07 | 1975-09-16 | Super Laundry Mach Co | Flatwork folding system |
US4234179A (en) * | 1979-04-17 | 1980-11-18 | Weir Henry J | Laundry folding machine |
US4527346A (en) * | 1983-09-14 | 1985-07-09 | Macpherson, Inc. | Sheet material stacking, conveying and cutting method and apparatus |
FR2568233A1 (en) * | 1984-07-26 | 1986-01-31 | Claude Estienne | Sequential device intended to fold any thin and flexible object of defined geometrical shape |
US5079867A (en) * | 1990-03-05 | 1992-01-14 | Chicago Dryer Company | Ironer-folder for flatwork, apparatus and method |
US5624366A (en) * | 1994-06-29 | 1997-04-29 | Beeri; Avri A. | Laundry sheet folding apparatus |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US570581A (en) * | 1896-11-03 | Fredrick h | ||
US948920A (en) * | 1908-04-07 | 1910-02-08 | Altamont B Collom | Paper-folding machine. |
US1071573A (en) * | 1912-02-23 | 1913-08-26 | Molyneux Mailing Machine Company | Folding-machine for letters. |
US1536637A (en) * | 1920-11-12 | 1925-05-05 | Max H Thurnauer | Method of and apparatus for ironing |
US1752415A (en) * | 1929-02-06 | 1930-04-01 | Hudson Sharp Machine Co | Folding machine |
US1870754A (en) * | 1930-12-10 | 1932-08-09 | Schulz Otto Carl | Apparatus for folding sheet material |
US2031780A (en) * | 1932-02-10 | 1936-02-25 | Hoe & Co R | Rotary cutting and folding mechanism for printing machines |
US2308155A (en) * | 1939-07-01 | 1943-01-12 | Baker Perkins Ltd | Folding of sheets such as tablecloths and the like |
US2750186A (en) * | 1951-09-29 | 1956-06-12 | Profit Machinery Company Inc | Folding apparatus |
US3113772A (en) * | 1962-09-24 | 1963-12-10 | Mc Graw Edison Co | Cross-folder control |
US3361424A (en) * | 1964-12-08 | 1968-01-02 | Chicago Dryer Co | Cross folder with sheet elevating means |
-
1967
- 1967-05-12 US US637953A patent/US3559983A/en not_active Expired - Lifetime
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US570581A (en) * | 1896-11-03 | Fredrick h | ||
US948920A (en) * | 1908-04-07 | 1910-02-08 | Altamont B Collom | Paper-folding machine. |
US1071573A (en) * | 1912-02-23 | 1913-08-26 | Molyneux Mailing Machine Company | Folding-machine for letters. |
US1536637A (en) * | 1920-11-12 | 1925-05-05 | Max H Thurnauer | Method of and apparatus for ironing |
US1752415A (en) * | 1929-02-06 | 1930-04-01 | Hudson Sharp Machine Co | Folding machine |
US1870754A (en) * | 1930-12-10 | 1932-08-09 | Schulz Otto Carl | Apparatus for folding sheet material |
US2031780A (en) * | 1932-02-10 | 1936-02-25 | Hoe & Co R | Rotary cutting and folding mechanism for printing machines |
US2308155A (en) * | 1939-07-01 | 1943-01-12 | Baker Perkins Ltd | Folding of sheets such as tablecloths and the like |
US2750186A (en) * | 1951-09-29 | 1956-06-12 | Profit Machinery Company Inc | Folding apparatus |
US3113772A (en) * | 1962-09-24 | 1963-12-10 | Mc Graw Edison Co | Cross-folder control |
US3361424A (en) * | 1964-12-08 | 1968-01-02 | Chicago Dryer Co | Cross folder with sheet elevating means |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3669443A (en) * | 1970-04-01 | 1972-06-13 | Ivanhoe Research Corp | Method and system for automatically forming parts for garments, and the like |
US3685818A (en) * | 1970-04-06 | 1972-08-22 | Kimberly Clark Co | Machine for making diapers |
US3711086A (en) * | 1970-09-01 | 1973-01-16 | H Weist | Method and apparatus for folding lengths of material |
US3773315A (en) * | 1971-06-04 | 1973-11-20 | Exxon Research Engineering Co | Sheet and bag folder |
US3751029A (en) * | 1971-07-30 | 1973-08-07 | Angelo J D | Multi-level apparatus for folding large flexible webs |
US3785636A (en) * | 1971-09-20 | 1974-01-15 | Ethyl Corp | Bag folding apparatus |
US3905593A (en) * | 1973-05-07 | 1975-09-16 | Super Laundry Mach Co | Flatwork folding system |
US4234179A (en) * | 1979-04-17 | 1980-11-18 | Weir Henry J | Laundry folding machine |
US4527346A (en) * | 1983-09-14 | 1985-07-09 | Macpherson, Inc. | Sheet material stacking, conveying and cutting method and apparatus |
FR2568233A1 (en) * | 1984-07-26 | 1986-01-31 | Claude Estienne | Sequential device intended to fold any thin and flexible object of defined geometrical shape |
US5079867A (en) * | 1990-03-05 | 1992-01-14 | Chicago Dryer Company | Ironer-folder for flatwork, apparatus and method |
US5624366A (en) * | 1994-06-29 | 1997-04-29 | Beeri; Avri A. | Laundry sheet folding apparatus |
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AS | Assignment |
Owner name: JENSEN CORPORATION, STATELESS Free format text: CHANGE OF NAME;ASSIGNOR:NEWJENSEN CORPORATION;REEL/FRAME:003915/0763 Effective date: 19810717 Owner name: NEWJENSEN CORPORATION, 2775 N.W. 63RD COURT, FORT Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:JENSEN CORPORATION;REEL/FRAME:003915/0758 Effective date: 19810717 Owner name: JENSEN CORPORATION Free format text: CHANGE OF NAME;ASSIGNOR:NEWJENSEN CORPORATION;REEL/FRAME:003915/0763 Effective date: 19810717 Owner name: NEWJENSEN CORPORATION, 2775 N.W. 63RD COURT, FORT Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:JENSEN CORPORATION;REEL/FRAME:003915/0758 Effective date: 19810717 |