GB328280A - Improvements in folding mechanisms for printing machines - Google Patents

Improvements in folding mechanisms for printing machines

Info

Publication number
GB328280A
GB328280A GB172529A GB172529A GB328280A GB 328280 A GB328280 A GB 328280A GB 172529 A GB172529 A GB 172529A GB 172529 A GB172529 A GB 172529A GB 328280 A GB328280 A GB 328280A
Authority
GB
United Kingdom
Prior art keywords
cylinder
web
sheet
chains
folding
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
Application number
GB172529A
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.)
R Hoe and Co Inc
Original Assignee
R Hoe and Co Inc
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 R Hoe and Co Inc filed Critical R Hoe and Co Inc
Priority to GB172529A priority Critical patent/GB328280A/en
Publication of GB328280A publication Critical patent/GB328280A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B65H45/16—Rotary folders
    • B65H45/161—Flying tuck folders

Landscapes

  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

328,280. Hoe &. Co., Ltd., R., (Hoe & Co., Inc., R.). Jan. 17, 1929. Folding paper.-In folding-apparatus for highspeed printing-presses the gripper mechanism carrying the sheet into folding position is operated electrically. As applied to rotary folding-apparatus in which a blade 14 tucks the sheet between rollers 15, 16 the leading end of a printed web W is clamped to the cylinder 3 between a bar 17 carried by endless chains 19 external to the cylinder 3 and an armature 18 on the cylinder 3. In order to energize the armature 18, contacts 33 thereon are periodically connected by a plate 38 to contacts 31 on the cylinder 3 connected to the source of current. The plate 38 is carried by a lever 41 pivoted at 42 to the inside wall of the cylinder and having a roller 46 running on a cam 45 which allows the plate 38 to complete and break the armature circuit at the required times under the action of a spring 44 pressing against the lever 41. The leading edge of the web W is carried around the cylinder 3 until the knife 10 on the cutting-cylinder 8 severs the, sheet therefrom, whereupon the sheet is released by the gripper mechanism and folded by means of the blade 14. Another similar gripper-mechanism clamps the severed end of the web and the operations are repeated. Bars 28 are provided on the chains 19 to prevent the trailing end of the sheet from dropping after it has been cut from the web. The chains 19 pass over the cutting-cylinders 8 and around guide cylinders 24 - - 26 one of which is mounted in a spring-pressed bearing 27 so as to keep the chains taut. A second web W may be associated with the web W.
GB172529A 1929-01-17 1929-01-17 Improvements in folding mechanisms for printing machines Expired GB328280A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB172529A GB328280A (en) 1929-01-17 1929-01-17 Improvements in folding mechanisms for printing machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB172529A GB328280A (en) 1929-01-17 1929-01-17 Improvements in folding mechanisms for printing machines

Publications (1)

Publication Number Publication Date
GB328280A true GB328280A (en) 1930-04-17

Family

ID=9726909

Family Applications (1)

Application Number Title Priority Date Filing Date
GB172529A Expired GB328280A (en) 1929-01-17 1929-01-17 Improvements in folding mechanisms for printing machines

Country Status (1)

Country Link
GB (1) GB328280A (en)

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